+

WO2023033537A1 - Dispositif de prévention et d'élimination de la libération d'ammoniac - Google Patents

Dispositif de prévention et d'élimination de la libération d'ammoniac Download PDF

Info

Publication number
WO2023033537A1
WO2023033537A1 PCT/KR2022/013022 KR2022013022W WO2023033537A1 WO 2023033537 A1 WO2023033537 A1 WO 2023033537A1 KR 2022013022 W KR2022013022 W KR 2022013022W WO 2023033537 A1 WO2023033537 A1 WO 2023033537A1
Authority
WO
WIPO (PCT)
Prior art keywords
ammonia
absorption
removal device
absorbent liquid
air
Prior art date
Application number
PCT/KR2022/013022
Other languages
English (en)
Korean (ko)
Inventor
박근오
Original Assignee
주식회사래티스테크놀로지
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020210116286A external-priority patent/KR102576207B1/ko
Priority claimed from KR1020210116280A external-priority patent/KR102576203B1/ko
Priority claimed from KR1020210116281A external-priority patent/KR102576205B1/ko
Application filed by 주식회사래티스테크놀로지 filed Critical 주식회사래티스테크놀로지
Publication of WO2023033537A1 publication Critical patent/WO2023033537A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the present invention relates to an ammonia release prevention and removal device, and more particularly, to a device for preventing and removing leaked toxic ammonia from being released into the atmosphere.
  • Ammonia has been widely used as a refrigerant, and in recent years, the use of ammonia as a carbon dioxide-free fuel is increasing.
  • Ammonia (NH 3 ) composed of only nitrogen and hydrogen may be directly used as a fuel for internal combustion engines.
  • ammonia may be directly used as a fuel for internal combustion engines.
  • it may be used in the form of hydrogen after ammonia is decomposed into nitrogen and hydrogen through a reactor.
  • hydrogen generated by renewable energy is reacted with nitrogen to synthesize ammonia, and then the hydrogen is transported in the form of ammonia to consumers who need it, so that hydrogen is produced in the consumer's reactor.
  • ammonia is harmful to the human body even at a low concentration of 25ppm (0.0025%), and is highly toxic enough to cause death if a person is exposed to 2000ppm (0.2%) for 30 minutes. Therefore, when ammonia leaks from a facility that stores or treats ammonia, it can be a fatal hazard to drivers or people around them.
  • Ammonia which is toxic, is highly reactive, so rapid detection is not difficult.
  • the detection efficiency will naturally increase if the detectors are densely arranged over a large area, but if the number of detectors is excessively large, the cost of equipment or operation will also increase, requiring more careful consideration.
  • Preventing entry into drivers' residential areas is a passive safety measure.
  • arrange the driver's living area and ammonia facilities to have a sufficient distance, and adopt a method of blocking air inflow into the driver's living area when ammonia leakage is detected.
  • Air dilution is in the same vein as the method used for leaks of combustible gases such as natural gas and LPG. Even flammable gases can be safely used without risk of fire or explosion if diluted with air below the explosive concentration. That is, ammonia, which is a toxic gas, can be diluted with air to such an extent that toxicity is not exerted. However, since ammonia has both flammability and very strong toxicity as described above, it is difficult to apply the air dilution method.
  • FIG. 1 and 2 show a schematic configuration of a conventional leak prevention device for indoor/outdoor facilities of combustible non-toxic gas, and explain in detail the flammable gas air dilution method and also the reason why it is difficult to apply to ammonia dilution explain in detail.
  • FIG. 1 shows an outdoor equipment leakage prevention device, which allows leaked gas to be naturally diluted by air (wind), and can be regarded as practically not having a separate device.
  • a shut-off valve is installed at the inlet and outlet of the facility to close the shut-off valve when leakage occurs.
  • devices or controls such as employing explosion-proof equipment or reducing the possibility of ignition by reducing the electrical supply to the system may be further applied.
  • Figure 2 shows a device for preventing leaks in indoor facilities, and when gas leaks occur in a space accommodating facilities, it is configured to be diluted through forced ventilation and exhausted to the outside through a duct. That is, the facility accommodating space is provided with a ventilation inlet and a ventilation outlet each equipped with a switch, and the ventilation outlet is provided with a blower to force exhaust toward the duct, and as a result, the leaked gas is released into the atmosphere through the duct and diluted. is to make it
  • devices or controls such as explosion-proof equipment, ignition possibility reduction control, shut-off valve, etc. can be further used. Supply is very important.
  • the lower explosion limit concentration is 5%, and therefore, fire or explosion can be prevented by supplying air about 20 times the leakage amount.
  • ammonia even at a concentration of 2000 ppm, or 0.2%, it is very toxic enough to cause death if a person is exposed for more than 30 minutes. It is, of course, very difficult to realize these operating conditions. That is, in the case of ammonia, if the conventional leakage prevention device applied to combustible gas is applied as it is, a very high concentration of ammonia is discharged as it is based on the safety level in the atmosphere through the duct, which is a great danger to the driver and the surrounding public environment It will become.
  • ammonia since ammonia has not only flammability but also very strong toxicity, it is not technically easy to dilute the toxicity to a negligible level. Moreover, in an emergency situation where ammonia leaks, such an air dilution method is more difficult because equipment failure, fire, explosion, etc. may coexist.
  • Patent Document 1 KR 1003325280000 Detector of leaked ammonia gas
  • Patent Document 2 KR 1003226310000. A method used for preventing a leakage of ammonia gas and its device
  • Patent Document 3 US20080041136A1. Ammonia detection device and related methods
  • Patent Document 4 US20100172816A1. Ammonia storage system
  • Non-Patent Document 1 Sami Lamberg, RistoLautkaski, Kimmo Virolainen. 2015. Safety Guide of Ammonia Refrigerating Systems.
  • Non-Patent Document 2 Kang, Su-Jin; Lee, Ik-Mo; Moon, Jin-Young; Chon, Young-Woo. 2017. “Risk Analysis of Ammonia Leak in the Refrigeration Manufacturing Facilities”.Journal of the Korean Institute of Gas. Vol. 21(1), pp. 21(1). 43-51.
  • Non-Patent Document 3 Ding Xi-bo, Wang Ruyue. 2017. Development of Ammonia Gas Leak Detection and Location Method. TELKOMNIKA.V15I3.5079Corpus ID: 64731962.
  • the present invention has been made to solve the problems of the prior art as described above, and an object of the present invention is to fundamentally block the leakage of ammonia from being discharged into the atmosphere by using an absorbent liquid, and to effectively remove the remaining ammonia. And, after removing ammonia, it is to provide an ammonia release prevention and removal device that can be smoothly restored to the normal state.
  • the ammonia release prevention and removal devices 100A, 100B, and 100C of the present invention include an outer enclosure wall 110 that blocks the space of the ammonia use facility 500 from the external environment; a duct (120) for discharging air into the atmosphere through constant air flow; Absorption tanks 130A, 130B, and 130C accommodating the ammonia absorption liquid; Including, the outer enclosure wall 110 so that ammonia in the air around the ammonia using facility 500 is absorbed into the ammonia absorption liquid contained in the absorption tanks 130A, 130B, and 130C and discharged to the atmosphere in a removed state. Gas in the inner space may pass through the absorption tanks 130A, 130B, and 130C and be discharged through the duct 120 .
  • the A-th embodiment will be described.
  • the ammonia release prevention and removal device 100A according to Example A is provided on the outer enclosure wall 110 to introduce air and is formed to be opened and closed by the ventilation inlet opener 111d (111). ); a ventilation outlet 112 provided on the outer enclosure wall 110 to discharge air by a ventilation outlet blower 112f and to be opened and closed by a ventilation outlet switch 112d; an outer enclosure wall gas detector 113 provided on the upper side of the inner space of the outer enclosure wall 110 and detecting leaked ammonia gas; a duct communication passage 121 connecting the duct 120 and the ventilation discharge passage 112 and being openable and openable by a duct communication passage opener 121d; an absorbent liquid supply path 131A connected to the absorption tank 130A and the duct communication path 121 and formed to be opened and closed by an absorbent liquid supply path switch 131Ad; a duct return passage 132A connecting an upper space of the absorption liquid accommodated in the absorption tank 130A and the duct 120 and being openable and openable by a duct return passage switch
  • the ventilation inlet opener 111d and the duct communication path opener 121d are closed,
  • the ventilation discharge path switch 112d, the absorbent liquid supply path switch 131Ad, and the duct return path switch 132Ad are opened, so that the absorbent liquid is filled into the duct communication passage 121 through the absorbent liquid supply path 131A.
  • the mixture of ammonia and air discharged through the ventilation discharge path 112 comes into contact with the absorption liquid filled in the duct communication passage 121 and passes through the absorption tank 130A, and the ammonia is dissolved in the absorption liquid.
  • Ammonia is removed while passing through the absorption tank 130A, and purified air may be discharged to the outside through the duct return path 132A.
  • the duct communication passage 121 prevents the absorption liquid supplied to the ventilation discharge passage 112 from flowing into the inner space of the outer enclosure wall 110. It may be disposed lower than the ventilation outlet 112.
  • ammonia release prevention and removal device 100A is formed in a depression on a part of the lower surface of the inner space of the outer wall 110 so that the absorption liquid flowing into the inner space of the outer wall 110 is collected and accommodated, and a sump drain valve A drainage tank 114 whose drainage is controlled by (114v); can include
  • ammonia release prevention and removal device 100A may include a duct communication passage drain valve 121r for controlling whether or not the absorption liquid filled in the duct communication passage 121 is drained.
  • ammonia release prevention and removal device 100A is provided in the absorption tank 130A to discharge purified air and a purified air exhaust passage 134A formed to be opened and closed by a purified air exhaust switch 134Ad. ; can include
  • ammonia release prevention and removal device 100A injects air into the outer enclosure wall 110 so that the pressure in the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • Inflator 116 can include
  • the device for preventing and removing ammonia may include: an absorbent liquid injector (115) for spraying an absorbent liquid to remove remaining ammonia gas in the inner space of the outer wall (110); a duct internal absorbent liquid injector 122 for spraying an absorbent liquid to remove residual ammonia gas in the inner space of the duct 120; can include
  • ammonia release prevention and removal device 100A includes an absorption liquid injector 135A for replenishing the absorption liquid in the absorption tank 130A; can include
  • the absorption tank 130A may include a contact increasing structure inside the absorption tank 130A to increase contact between the mixture of ammonia and air and the absorption liquid.
  • the contact increasing structure is formed in the form of a horizontal diaphragm provided adjacent to the absorbent liquid supply path 131A and is in the form of a distributor in which a plurality of openings are distributed and spaced vertically from each other in the absorption tank 130A. and may be at least one selected from among a plurality of horizontal diaphragms in which at least one opening is formed and a plurality of solid fillers filled in the absorption tank 130A.
  • a plurality of absorption tank gas detectors 133A may be provided at different heights to monitor the ammonia removal rate.
  • a plurality of ventilation outlets 112 may be connected to one absorption tank 130A.
  • Ammonia release prevention and removal method is a method for preventing and removing ammonia release using the ammonia release prevention and removal device (100A) according to embodiment A, wherein the outer enclosure wall gas detector a leaking gas detection step in which ammonia gas leaked by 113 is detected and the ventilation inlet opener 111d and the duct communication path opener 121d are closed; The ventilation discharge path switch 112d, the absorbent liquid supply path switch 131Ad, and the duct return path switch 132Ad are opened, so that the absorbent liquid is filled into the duct communication passage 121 through the absorbent liquid supply path 131A.
  • the mixture of ammonia and air discharged through the ventilation discharge path 112 comes into contact with the absorption liquid filled in the duct communication passage 121 and passes through the absorption tank 130A, in which ammonia is dissolved in the absorption liquid and removed, an ammonia removal step in which ammonia is removed and purified air is discharged to the outside through the duct return passage 132A while passing through the absorption tank 130A;
  • an ammonia removal step in which ammonia is removed and purified air is discharged to the outside through the duct return passage 132A while passing through the absorption tank 130A;
  • the device for preventing and removing ammonia may include: an absorbent liquid injector (115) for spraying an absorbent liquid to remove remaining ammonia gas in the inner space of the outer wall (110); A duct internal absorbent liquid injector 122 for injecting an absorbent liquid to remove residual ammonia gas in the internal space of the duct 120, wherein the ammonia release prevention and removal method includes the inside of the outer enclosure wall in the ammonia removal step.
  • the absorbent liquid sprayer 115 and the absorbent liquid sprayer 122 inside the duct may spray the absorbent liquid.
  • the ammonia release prevention and removal device 100A injects air into the outer enclosure wall 110 so that the pressure in the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • an air injector 116 the ammonia release prevention and removal method, the ammonia gas remaining in the inner space of the outer enclosure wall 110 is absorbed by the air injected by the air injector 116 and
  • a residual gas removal step that is removed by forcible contact or removed by the absorption liquid sprayed by the absorbent liquid sprayer 115 inside the outer enclosure wall and the absorbent liquid sprayer 122 inside the duct; can include
  • the ammonia release prevention and removal device 100A is formed in a depression on a part of the lower surface of the inner space of the outer wall 110 so that the absorption liquid flowing into the inner space of the outer wall 110 is collected and accommodated, and a sump drain valve A drainage tank 114 whose drainage is controlled by (114v); a duct communication passage drainage valve 121r for controlling whether or not to drain the absorption liquid filled in the duct communication passage 121; and an absorbent liquid injector 135A for replenishing the absorbent liquid in the absorption tank 130A, wherein the ammonia release prevention and removal method includes closing the absorbent liquid supply path switch 131Ad and discharging the absorbent liquid by the absorbent liquid injector 135A.
  • the absorbent liquid is replenished in the absorption tank 130A, and the sump tank drain valve 114v and the duct communication passage drain valve 121r are opened to fill the outer wall 110 and the duct communication passage 121 with the absorbent liquid.
  • a normal state recovery step in which the drain is drained;
  • a normal recovery completion step in which the ventilation inlet opener 111d and the duct communication path opener 121d are opened to complete restoration to a normal state after the absorbent liquid is drained; can include
  • Ammonia emission prevention and removal method application embodiment according to embodiment A is an ammonia emission prevention and removal method using the ammonia emission prevention and removal device (100A) according to embodiment A, wherein the outer enclosure wall gas detector a leaking gas detection step in which ammonia gas leaked by 113 is detected and the ventilation inlet opener 111d and the duct communication path opener 121d are closed; The duct return path switch 132Ad is closed, and the ventilation discharge path switch 112d and the absorbent liquid supply path switch 131Ad are opened, so that the space of the ammonia use facility 500 is completely blocked from the external environment.
  • an absorption tank connection step in which the absorption liquid is filled into the duct communication passage 121 through the absorption liquid supply path 131A;
  • the ventilation discharge path switch 112d is controlled and opened so that the degree of opening is adjusted according to the ammonia removal rate, so that the mixture of ammonia and air discharged through the ventilation discharge path 112 fills the duct communication passage 121 with the absorbent liquid.
  • an ammonia removal step in which ammonia is dissolved in the absorption liquid and removed in the process of passing through the absorption tank 130A in contact with the absorption tank, and ammonia is removed while passing through the absorption tank 130A; can include
  • the ammonia release prevention and removal device 100B is provided on the outer enclosure wall 110 to introduce air, and the ventilation inlet 111 formed to be opened and closed by the ventilation inlet opener 111d. ); a ventilation outlet 112 provided in the outer enclosure wall 110 and discharging air by a ventilation outlet blower 112f; an outer enclosure wall gas detector 113 provided on the upper side of the inner space of the outer enclosure wall 110 and detecting leaked ammonia gas; a tank communication passage (131B) connecting the absorption tank (130B) and the ventilation discharge passage (112) and being openable and openable by a tank communication passage opener (131Bd); a duct return passage 132B connecting an upper space of the absorption liquid accommodated in the absorption tank 130B and the duct 120 and being openable and openable by a duct return passage switch 132Bd; an absorption tank gas sensor 133B provided in the absorption tank 130B to measure the ammonia concentration in the internal space of the absorption tank 130B or the pH of the absorption liquid
  • the ammonia release prevention and removal device 100B when ammonia leaks in the inner space of the outer enclosure wall 110, the mixture of ammonia and air discharged through the ventilation discharge path 112 is transferred to the ventilation discharge path ( 112) and the tank communication passage 131B, in the process of flowing into and passing through the absorption tank 130B, ammonia is dissolved in the absorption liquid contained in the absorption tank 130B and removed, and passes through the absorption tank 130B. While ammonia is removed, purified air may be discharged to the outside through the duct return passage 132B.
  • ammonia release prevention and removal device 100B includes a plurality of absorbent liquid accommodating units 135B provided in the absorption tank 130B to disperse and receive the absorbent liquid; can include
  • a plurality of absorbent liquid accommodating portions 135B may be disposed vertically and spaced apart.
  • the ammonia release prevention and removal device 100B reaccommits the absorbent liquid overflowing from the absorbent liquid receiver 135B disposed on the upper side to the lower side of the absorbent liquid receiver 135B or the absorption tank 130B disposed on the lower side.
  • the absorbent liquid accommodating portions 135B spaced apart vertically may be displaced from each other.
  • ammonia release prevention and removal device 100B determines the amount of absorbent liquid circulated by the absorbent liquid circulation pump 134B according to the amount of ammonia leakage detected by the outer enclosure wall gas detector 113 or the absorption tank gas detector 133B. can increase or decrease
  • the ammonia release prevention and removal device 100B includes an absorbent liquid replenishment path 134Ba for replenishing new absorbent liquid on the absorbent liquid circulation passage 134Bp and an absorbent liquid treatment furnace for discharging the absorbent liquid that has absorbed ammonia to be treated externally ( 134Bb).
  • ammonia release prevention and removal device 100B is provided in the absorption tank 130B to discharge purified air and is formed to be opened and closed by the purified air exhaust switch 136Bd. ; can include
  • ammonia release prevention and removal device 100B includes a duct communication passage 121 connecting the duct 120 and the ventilation discharge passage 112 and formed to be opened and closed by a duct communication passage opener 121d; can include
  • the tank communication passage 131B prevents the absorption liquid contained in the lower side of the absorption tank 130B from flowing into the inner space of the outer enclosure wall 110. It may be disposed lower than the discharge passage 112 .
  • ammonia release prevention and removal device 100B is formed in a depression on a part of the lower surface of the inner space of the outer wall 110 so that the absorption liquid flowing into the inner space of the outer wall 110 is collected and accommodated, and the sump drain valve A drainage tank 114 whose drainage is controlled by (114v); can include
  • ammonia release prevention and removal device 100B injects air into the outer enclosure wall 110 so that the pressure in the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • Inflator 116 can include
  • the device for preventing and removing ammonia includes an absorbent liquid injector 115 for spraying an absorbent liquid in order to remove residual ammonia gas in the inner space of the outer sealing wall 110; a duct internal absorbent liquid injector 122 for spraying an absorbent liquid to remove residual ammonia gas in the inner space of the duct 120; can include
  • a plurality of absorption tank gas detectors 133B may be provided at different heights to monitor the ammonia removal rate.
  • a plurality of ventilation outlets 112 may be connected to one absorption tank 130B.
  • the ammonia release preventing and removing method using the ammonia release preventing and removing device 100B according to the B embodiment the outer enclosure wall gas detector 113 A leaking gas detection step in which the leaked ammonia gas is sensed by; an absorption liquid amount increasing step of increasing the amount of absorption liquid circulated by the absorption liquid circulation pump 134B; A mixture of ammonia and air discharged through the ventilation discharge passage 112 flows into the absorption tank 130B through the ventilation discharge passage 112 and the tank communication passage 131B and passes therethrough.
  • an ammonia removal step in which the ammonia is removed by dissolving in the absorption liquid contained in the absorption tank 130B and discharged to the outside through the duct return path 132B can include
  • the device for preventing and removing ammonia includes an absorbent liquid injector 115 for spraying an absorbent liquid in order to remove residual ammonia gas in the inner space of the outer sealing wall 110; A duct internal absorbent liquid injector 122 for injecting an absorbent liquid to remove residual ammonia gas in the internal space of the duct 120, wherein the ammonia release prevention and removal method includes the inside of the outer enclosure wall in the ammonia removal step.
  • the absorbent liquid sprayer 115 and the absorbent liquid sprayer 122 inside the duct may spray the absorbent liquid.
  • the ammonia release prevention and removal device 100B injects air into the outer enclosure wall 110 so that the pressure in the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • the ammonia release prevention and removal method the ammonia gas remaining in the inner space of the outer enclosure wall 110 is absorbed by the air injected by the air injector 116 and
  • a residual gas removal step that is removed by forcible contact or removed by the absorption liquid sprayed by the absorbent liquid sprayer 115 inside the outer enclosure wall and the absorbent liquid sprayer 122 inside the duct; can include
  • the ammonia release prevention and removal device 100B includes a duct communication passage 121 connecting the duct 120 and the ventilation discharge passage 112 and formed to be opened and closed by a duct communication passage opener 121d;
  • the ammonia release prevention and removal method includes: a duct leakage prevention step in which the duct communication path opener 121d is closed after the leak gas detection step; can include
  • ammonia release prevention and removal method may include, after the ammonia removal step, an absorbent liquid amount reducing step of reducing the amount of absorbent liquid circulated by the absorbent liquid circulation pump 134B; can include
  • the ammonia release prevention and removal device 100C is provided on the outer enclosure wall 110 to introduce air and is formed to be opened and closed by a ventilation inlet valve 111v (111). ); a ventilation outlet 112 provided in the outer enclosure wall 110 to discharge air; an outer enclosure wall gas detector 113 provided on the upper side of the inner space of the outer enclosure wall 110 and detecting leaked ammonia gas; an air injector 116 for injecting air into the outer enclosure wall 110; an ejector (135C) provided in the absorption tank (130C) to receive, mix, and eject air and absorption liquid; a tank communication passage 131C connecting the absorption tank 130C and the ventilation discharge passage 112 and being opened and closed by a tank communication passage valve 131Cv; an ejector passage 132C connecting the ejector 135C and the ventilation discharge passage 112 and being opened and closed by an ejector passage valve 132Cv; The upper end of the absorption tank 130C and the upper end of the outer enclosure wall 110 are connected
  • an air circulation path (133C); an absorption tank gas detector (134C) provided in the absorption tank (130C) to measure the ammonia concentration in the internal space of the absorption tank (130C) or the pH of the absorption liquid;
  • the absorbent liquid stored in the lower side of the absorption tank 130C is raised and supplied to the ejector 135C through the pump-ejector channel 136Ca or supplied again from the upper side of the absorption tank 130C through the pump-tank channel 136Cb.
  • an absorbent liquid circulation pump (136C) provided in the absorbent liquid circulation passage (136Cp) to circulate the absorbent liquid and pumping the absorbent liquid;
  • the ammonia release prevention and removal device 100C when ammonia does not leak in the inner space of the outer enclosure wall 110, the ammonia introduced into the inner space of the outer enclosure wall 110 through the ventilation inlet 111 Air is operated in a normal operation mode in which ventilation is performed by sequentially passing through the ventilation discharge path 112, the absorption tank 130C, and the air exhaust path 137C and being discharged to the outside through the duct 120.
  • the ventilation inlet passage 111 and the air exhaust passage 137C are closed so that the inner space of the outer enclosure wall 110 and the absorption tank 130C is opened to the outside.
  • the ammonia release prevention and removal device 100C determines that no ammonia leak has occurred if the ammonia leak amount detected by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is less than a predetermined detection standard It is operated in the normal operation mode, and if it is greater than the detection standard, it may be determined that ammonia leakage occurs and it may be operated in the gas absorption mode.
  • ammonia release prevention and removal device 100C includes a gas-liquid contact layer 140 which is distributed and disposed in the inner space of the absorption tank 130C to increase contact between the mixture of ammonia and air and the absorption liquid; can include
  • gas-liquid contact layer 140 may be disposed below the ejector 135C.
  • the gas-liquid contact layer 140 is in the form of a plurality of horizontal diaphragms spaced apart from each other in the vertical direction and having at least one opening in the absorption tank 130C, and a plurality of solids filled in the absorption tank 130C. It may be at least one selected from among filler types.
  • ammonia release prevention and removal device 100C is an auxiliary gas-liquid contact layer distributed above the ejector 135C in the internal space of the absorption tank 130C to increase contact between the mixture of ammonia and air and the absorption liquid ( 145); can include
  • ammonia release prevention and removal device 100C is connected to the absorption liquid circulation path 136Cp and accommodated at the lower side of the absorption tank 130C, and the pump-discharge path for discharging the absorption liquid that has absorbed ammonia to be treated externally ( 136Cc) may be included.
  • ammonia release prevention and removal device 100C includes an absorption liquid injector 138C for replenishing the absorption liquid in the absorption tank 130C; can include
  • a portion of the absorbent liquid injected from the absorbent liquid injector 138C may be bypassed and provided to the ejector 135C through the pump-ejector passage 136Ca.
  • ammonia release prevention and removal device 100C includes an absorbent liquid distributor 139C formed in the form of a horizontal diaphragm provided adjacent to the absorbent liquid injector 138C and having a plurality of openings distributed therein; can include
  • ammonia release prevention and removal device 100C is formed in a depression on a part of the lower surface of the inner space of the outer wall 110 so that the absorption liquid flowing into the inner space of the outer wall 110 is collected and accommodated, and the sump drain valve A drainage tank 114 whose drainage is controlled by (114v); can include
  • ammonia release prevention and removal device 100C includes an outer enclosure wall internal absorbent liquid injector 115 for injecting an absorbent liquid to remove residual ammonia gas in the inner space of the outer enclosure wall 110; can include
  • the ammonia release prevention and removal device 100C connects the ventilation outlet 111 and the duct 120 to forcibly blow the air in the outer enclosure wall 110 by the duct communication passage blower 121f.
  • a duct communication passage 121 formed to be opened and closed by a duct communication passage valve 121v and discharged through the duct 120; Including, when ammonia leakage does not occur in the inner space of the outer enclosure wall 110, the air introduced into the inner space of the outer enclosure wall 110 through the ventilation inlet 111 is discharged through the ventilation outlet 112. , It can be ventilated by sequentially passing through the duct communication passage 121 and being discharged to the outside through the duct 120.
  • a plurality of outer enclosure walls 110 are connected to one absorption tank 130C, and at least one outer enclosure wall 110 accommodates the absorption liquid, In addition, it can be formed so that ammonia discharged from other external systems is introduced and ammonia is removed by the absorption liquid.
  • the outer wall 110 accommodating the absorbent liquid is provided with a contact increasing structure inside the outer wall 110 to increase the contact between the mixture of ammonia and air and the absorbent liquid. It is formed in the form of a horizontal diaphragm provided adjacent to the side where the absorbent liquid flows into, and is formed in the form of a distributor in which a plurality of openings are distributed, spaced apart from each other in the vertical direction within the outer enclosure wall 110, and at least one opening is formed It may be at least one selected from a plurality of horizontal diaphragm shapes and a plurality of solid filler shapes filled in the outer enclosure wall 110 .
  • the absorption tank gas detector 134C detects leaked ammonia gas above a predetermined detection standard, and the ventilation inlet 111 and the air exhaust 137C are closed to close the outer enclosure wall.
  • a leak gas detection step in which the inner space of the absorption tank (130C) is isolated from the outside; an air forced injection step in which the air injected into the inner space of the outer enclosure wall 110 through the air injector 116 is mixed with ammonia and discharged to the ventilation outlet 112; A leaked gas removal step in which ammonia is dissolved in the absorbent liquid and removed in a process in which the mixture of the absorbent liquid, ammonia, and air discharged through the ventilation outlet 112 is supplied to the ejector 135C, mixed, and injected; A purified air circulation step in which ammonia is removed while passing through the ejector (135C) and purified air is returned to and circulated to the outer enclosure wall (110) through the air circulation path (133C); sequentially and repeatedly performing the leaked gas removal step and the purified air circulation step; can include
  • the leaked gas removal step is performed so that the absorbent liquid accommodated in the lower side of the absorption tank 130C pulled up by the absorbent liquid circulation pump 136C is provided to the ejector 135C through the pump-ejector passage 136Ca.
  • the ammonia release prevention and removal device 100C includes an absorption liquid injector 138C for replenishing the absorption liquid in the absorption tank 130C; In the step of removing the leaked gas, a portion of the absorbent liquid injected from the absorbent liquid injector 138C may be bypassed and provided to the ejector 135C through the pump-ejector passage 136Ca.
  • the ammonia release prevention and removal device 100C includes a water tank 114 formed in a depression on a lower surface of the inner space of the outer enclosure wall 110 and whose drainage is controlled by a water tank drain valve 114v; an outer sealing wall internal absorption liquid injector 115 for spraying an absorption liquid to remove residual ammonia gas in the inner space of the outer sealing wall 110;
  • the absorbent liquid injector 115 inside the outer enclosure wall sprays the absorbent liquid to ammonia remaining in the inner space of the outer enclosure wall 110.
  • Residual gas removal step of removing gas an internal absorbent liquid draining step in which the absorbent liquid flowing into the inner space of the outer sealing wall 110 is collected and accommodated in the drain tank 114 and drained by the drain tank drain valve 114v; can include
  • the ammonia release prevention and removal device 100C is connected to the absorption liquid circulation path 136Cp and accommodated at the lower side of the absorption tank 130C, and the pump-discharge path for discharging the absorption liquid that has absorbed ammonia to be treated externally ( 136 Cc); an absorption liquid injector 138C for replenishing the absorption liquid in the absorption tank 130C;
  • the ammonia release prevention and removal method includes, when the ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is detected as higher than a predetermined maximum standard, the gas absorption A step of performing an additional absorption mode operation in parallel with the mode, wherein the operation in the additional absorption mode detects ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C in a predetermined manner.
  • a new absorbent liquid replenishment step in which new absorbent liquid is replenished in the absorption tank 130C by the absorbent liquid injector 138C;
  • the absorbent liquid accommodated in the lower side of the absorption tank 130C is pulled up through the absorbent liquid circulation passage 136Cp by the absorbent liquid circulation pump 136C, and all or part thereof is discharged to the outside through the pump-discharge passage 136Cc. Discharging the used absorbent liquid discharged; can include
  • the ammonia release prevention and removal device 100C is connected to the absorption liquid circulation path 136Cp and accommodated at the lower side of the absorption tank 130C, and the pump-discharge path for discharging the absorption liquid that has absorbed ammonia to be treated externally ( 136 Cc); an absorption liquid injector 138C for replenishing the absorption liquid in the absorption tank 130C;
  • the ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is detected based on a predetermined detection standard.
  • a step of performing a recovery operation mode operation wherein the ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is detected as Leak non-occurrence determination step that is determined to be less than the determined detection standard;
  • the absorbent liquid supplied to the ejector 135C is stopped and the air circulation passage valve 133Cv is closed so that the outer wall 110 and the absorption tank 130C are isolated from each other so that air circulation is stopped.
  • a new absorbent liquid replenishment step in which new absorbent liquid is replenished in the absorption tank 130C by the absorbent liquid injector 138C;
  • a used absorbent liquid discharge step in which the absorbent liquid accommodated in the lower side of the absorption tank 130C is pulled up through the absorbent liquid circulation passage 136Cp by the absorbent liquid circulation pump 136C and discharged to the outside through the pump-discharge passage 136Cc. ; can include
  • the ammonia release prevention and removal method includes the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C
  • the normal operation mode operation is carried out through the ventilation inlet 111 to the outer enclosure wall 110.
  • an air introduction step in which air is introduced into the inner space; an air ventilation step in which the introduced air is discharged to the outside through the duct 120 after sequentially passing through the ventilation discharge passage 112, the absorption tank 130C, and the air exhaust passage 137C; can include
  • the absorbent liquid accommodated in the lower side of the absorption tank 130C by the absorbent liquid circulation pump 136C is pulled up along the absorbent liquid circulation path 136Cp, and the absorbent liquid is pumped up through the pump-tank channel 136Cb.
  • a trace gas removal step in which a trace amount of ammonia contained in the air is removed by the absorption liquid provided from the upper side of the absorption tank 130C while the air passes through the absorption tank 130C in the air ventilation step; can include
  • the ammonia release prevention and removal device 100C includes a gas-liquid contact layer 140 which is distributed and disposed in the inner space of the absorption tank 130C to increase contact between the mixture of ammonia and air and the absorption liquid; In the step of removing the trace gas, trace amounts of ammonia contained in the air may be further removed by the absorption liquid remaining in the gas-liquid contact layer 140 .
  • the ammonia release prevention and removal device (100C) connects the ventilation outlet 111 and the duct 120.
  • the ammonia release prevention and removal method includes a normal operation mode when the ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is detected to be less than a predetermined detection standard.
  • the normal operation mode operation includes an air introduction step in which air is introduced into the inner space of the outer enclosure wall 110 through the ventilation inlet passage 111; an air ventilation step in which the introduced air is discharged to the outside through the duct 120 after sequentially passing through the ventilation outlet 112 and the duct communication passage 121; can include
  • the absorption liquid may be at least one selected from water, acidic water, ethanol, and glycol.
  • ammonia which is both flammable and toxic
  • ammonia can be effectively removed by providing an absorption tank for absorbing ammonia.
  • 1 is a conventional leak prevention device for indoor facilities of flammable non-toxic gas.
  • Figure 2 is a conventional leak prevention device for outdoor equipment of flammable non-toxic gas.
  • Figure 3 is a first embodiment A of the ammonia release prevention and removal device of the present invention.
  • Figure 4 is an embodiment of the absorption tank of the first embodiment A of the ammonia release prevention and removal device of the present invention.
  • Figure 5 is a leak gas detection step of the ammonia release prevention and removal device A embodiment of the present invention.
  • Figure 6 is an absorption tank connection step of the ammonia release prevention and removal device of the embodiment A of the present invention.
  • Figure 7 is a residual gas removal step of the ammonia release prevention and removal device of the present invention A first embodiment.
  • Figure 8 is a normal state recovery step of the ammonia release prevention and removal device A embodiment of the present invention.
  • Figure 9 is a normal recovery completion step of the ammonia release prevention and removal device A of the present invention.
  • 10 is a pressurized outer enclosure wall and a pressurized absorption tank wall application configuration of the ammonia release prevention and removal device of embodiment A of the present invention.
  • Figure 11 is a basic configuration of the ammonia release prevention and removal device B embodiment of the present invention.
  • Figure 13 is a third embodiment of the ammonia release prevention and removal device of the present invention.
  • Figure 15 is an ejector embodiment of the ammonia release prevention and removal device C embodiment of the present invention.
  • Figure 16 is a normal operation mode of the ammonia release prevention and removal device C embodiment of the present invention.
  • 17 is a gas absorption mode of a C embodiment of the ammonia release prevention and removal device of the present invention.
  • 21 is a second application configuration of the ammonia release prevention and removal device C embodiment of the present invention.
  • 25 is the solubility of ammonia in water.
  • 26 is the solubility of ammonia in ethanol.
  • Ventilation inlet switch 111v Ventilation inlet valve
  • 121f duct communication passage blower 121r: duct communication passage drainage valve
  • 131B tank communication path
  • 131Bd tank communication path opener
  • 131C tank communication passage
  • 131Cv tank communication passage valve
  • 136Cp absorbent circulation flow path
  • 136Ca pump-ejector flow path
  • 136Cb pump-tank oil
  • 136Cc pump-discharge oil
  • gas-liquid contact layer 145 auxiliary gas-liquid contact layer
  • ammonia release prevention and removal devices 100A, 100B, and 100C of the present invention basically include an outer enclosure wall 110, a duct 120, and an absorption tank 130A, 130B, and 130C. However, it is largely divided into Examples A, B and C.
  • the gas in the inner space of the outer enclosure wall 110 passes through the absorption tanks 130A, 130B, and 130C. It passes through and is formed to be discharged through the duct 120. Accordingly, ammonia in the air around the ammonia using facility 500 is absorbed into the ammonia absorption liquid contained in the absorption tanks 130A, 130B, and 130C, so that it can be discharged into the air in a removed state. Therefore, the outer enclosure wall 110 and the duct 120 are common to all of the A, B, and C embodiments, but due to differences in the absorption tanks 130A, 130B, and 130C or the connection relationship. Examples A, B, and C are divided.
  • the configuration common to all embodiments that is, the detailed configuration of the outer enclosure wall 110 and the duct 120 will be briefly described, and then the absorption tanks 130A, 130B, and 130C for each embodiment.
  • a device configuration of itself or a connection relationship and a methodological configuration that differs for each embodiment will be described in detail.
  • the outer enclosure wall 110 and devices provided therewith will be described.
  • the outer enclosure wall 110 is provided around the ammonia using facility 500 and serves to block the space of the ammonia using facility 500 from the external environment.
  • the ammonia using facility 500 is provided with a shut-off valve 550, etc., as in the prior art of FIGS. 1 and 2, to cut off the supply when leak occurs, so that the leak amount can be reduced by itself.
  • the outer enclosure wall 110 includes a ventilation inlet 111, a ventilation outlet 112, and an outer enclosure wall gas detector 113.
  • the ventilation inlet 111 and the ventilation outlet 112 allow air to be ventilated into the inner space of the outer enclosure wall 110 .
  • the ventilation inlet 111 is provided in the outer enclosure wall 110 to introduce air, and the ventilation inlet opener 111d (A and B embodiments) or the ventilation inlet valve ( 111v) (Embodiment C).
  • the ventilation discharge path 112 is provided on the outer enclosure wall 110 and is provided by the ventilation discharge path switch 112d (Embodiments A and B) or the ventilation discharge path valve 112v (Embodiment C). It is formed to be openable.
  • the driving force for ventilating air through the ventilation inlet 111 and the ventilation outlet 112 may be applied from a blower on another air passage communicating with them (to be described later), and, of course, the ventilation as needed.
  • a separate blower such as a ventilation inlet blower 111f or a ventilation outlet blower 112f may be provided in the inlet 111 or the ventilation outlet 112 .
  • Ammonia gas leaked into the outer wall 110 can be detected by the outer wall gas detector 113 provided on the upper side of the inner space of the outer wall 110 .
  • an absorption liquid for absorbing ammonia may flow into the inner space of the outer enclosure wall 110. Since the liquid absorbent liquid is laid down in the lower space, the outer enclosure wall gas detector 113 is unnecessary. It is to ensure that the outer enclosure wall gas detector 113 is provided on the upper side so that it is not submerged in the absorbent.
  • a water tank 114 an absorbent liquid sprayer 115 inside the outer enclosure wall, an air injector 116, and the like may be further provided in the outer enclosure wall 110.
  • the drainage tank 114 is a device for collecting and receiving the absorbent liquid flowing into the inner space of the outer sealing wall 110, and is formed in a depression on a part of the lower surface of the inner space of the outer sealing wall 110, and the drain tank drain valve ( 114v) controls the drainage.
  • the outer enclosure wall internal absorbent liquid injector 115 serves to inject the absorbent liquid to remove ammonia gas remaining in the inner space of the outer enclosure wall 110 .
  • the air injector 116 serves to inject air into the outer enclosure wall 110 so that the pressure in the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure (A , Example B). In addition, it can also serve to drive air circulation when the inner space of the outer wall 110 is closed (Embodiment C). This will be described in more detail when ammonia emission prevention and removal methods are described later.
  • the duct 120 and devices provided therewith will be described.
  • Air flow is always formed in the duct 120 so that air can be discharged into the atmosphere.
  • the ventilation inlet 111 and the ventilation outlet 112 a duct return path 132B (Embodiment B), an air exhaust path 137C, or a duct to be described later Since the communication passage 121 (Embodiment C) is open, the inner space of the outer enclosure wall 110 communicates with the duct 120, so that natural ventilation can be made at all times.
  • the duct communication passage 121 serves to connect the duct 120 and the ventilation discharge passage 112 in all embodiments.
  • the absorption tanks 130A, 130B, and 130C have a slightly different configuration or connection relationship for each embodiment, and the duct communication passage 121 may also have a slightly different additional configuration accordingly.
  • a brief description of the duct communication passage 121 for each embodiment is as follows.
  • the duct communication passage 121 connects the duct 120 and the ventilation discharge passage 112 and can be opened and closed by the duct communication passage opener 121d. it is formed
  • the reason why it is distinguished from the ventilation discharge path 112 is that, in the case of Example A, when ammonia leaks, the duct communication path 121 is filled with an absorbent liquid.
  • the duct communication passage 121 is longer than the ventilation discharge passage 112 as shown to exclude the absorption liquid supplied to the ventilation discharge passage 112 from flowing into the inner space of the outer enclosure wall 110. be placed on the lower side.
  • the duct communication passage 121 is provided with a duct communication passage drain valve 121r for controlling whether or not to drain the absorption liquid filled in the duct communication passage 121.
  • the air in the inner space of the outer enclosure wall 110 passes through the absorption tank 130B and enters the duct 120 through the duct return path 132B. is ventilated, that is, the air is finally discharged to the outside through the duct 120.
  • the absorption tank 130B in a normal state in which ammonia is not leaked, there is no need to pass through the absorption tank 130B, and thus air may be discharged directly through the duct 120 in a normal state. 12 shows such an application configuration. In the application configuration of FIG.
  • the ammonia release prevention and removal device 100B connects the duct 120 and the ventilation discharge passage 112 and is a duct communication passage A duct communication passage 121 formed to be opened and closed by the opener 121d is further included.
  • a duct communication passage 121 formed to be opened and closed by the opener 121d is further included.
  • the duct communication passage 121 of the B embodiment is substantially equivalent to the duct communication passage 121 of the A embodiment, reference numerals for each embodiment are commonly used without distinction.
  • the ammonia release prevention and removal device 100C when ammonia leakage does not occur in the inner space of the outer enclosure wall 110, the ammonia release prevention and removal device 100C, through the ventilation inlet 111, the outer enclosure wall 110 Normal operation mode in which the air introduced into the inner space is ventilated by sequentially passing through the ventilation outlet 112, the absorption tank 130C, and the air exhaust passage 137C and being discharged to the outside through the duct 120. is driven by That is, since the duct 120 is completely isolated when ammonia leakage occurs, a separate device for removing ammonia does not need to be provided in the duct 120.
  • duct communication passage 121 that allows air to be discharged directly to the duct 120 without passing through the absorption tank 130C as a first applied configuration of the ammonia release prevention and removal device of embodiment C of the present invention.
  • the internal air is forcibly blown by the duct communication passage blower 121f and discharged through the duct 120, and is formed to be opened and closed by the duct communication passage valve 121v. Therefore, in this case, when ammonia leakage does not occur in the inner space of the outer enclosure wall 110, the air introduced into the inner space of the outer enclosure wall 110 through the ventilation inlet 111 is transferred to the ventilation outlet 112. ), passing through the duct communication passage 121 sequentially and being discharged to the outside through the duct 120, ventilation can be achieved.
  • the duct 120 may further include an absorbent liquid injector 122 for spraying an absorbent liquid in order to remove residual ammonia gas in the inner space of the duct 120 .
  • any liquid having high ammonia solubility may be used, and for example, water, acidic water, ethanol, glycol, and the like may be employed.
  • FIG. 25 shows the solubility of ammonia in water
  • FIG. 26 shows the solubility of ammonia in ethanol
  • FIG. 27 shows the solubility of ammonia in glycol.
  • Water has a high ammonia solubility, and has the advantage of being cheap and easy to obtain.
  • ammonia is basic, the solubility can be further increased by using acidic water.
  • water has the disadvantage of condensation, so other options may be needed.
  • 26 and 27 it can be seen that both ethanol and glycol can be smoothly used in the case of ammonia having a low temperature.
  • the above-mentioned materials do not necessarily have to be used alone, and they may be appropriately mixed and used as needed.
  • Example A 100A
  • Example A the ammonia emission prevention and removal device of the present invention
  • the absorption tank 130A and devices provided thereto will be described.
  • the absorption tank 130A serves to accommodate the ammonia absorption liquid, and when ammonia leaks in the ammonia using facility 500, the absorption liquid is supplied to the space where ammonia is distributed so that the ammonia can be maximally absorbed and removed from the air. .
  • the mixture of ammonia and air is discharged through the absorption tank 130A without being discharged to the outside as it is. That is, as the mixture of ammonia and air proceeds, it is brought into contact with the absorption liquid in the absorption tank 130A as much as possible, so that ammonia mixed in the air is removed as much as possible before being discharged to the outside.
  • a contact increasing structure is preferably provided inside the absorption tank 130A.
  • Figure 4 shows various forms of the contact increasing structure as embodiments of the absorption tank of the ammonia release prevention and removal device of the present invention.
  • the contact increasing structure is most simply formed in the form of a horizontal diaphragm provided adjacent to the absorption liquid supply path 131A side, as shown in FIG. 4 (a), and a distributor in which a plurality of openings are distributed. can be in the form Alternatively, as shown in FIGS.
  • the contact increasing structure is vertically spaced apart from each other in the absorption tank 130A and has a plurality of horizontal directions in which at least one opening is formed. It may be in the form of a diaphragm. 4(b) is an example in which the openings of the diaphragms are formed to be offset, and FIG. 4(c) is an example similar to FIG. (d) is an example in which a plurality of through-holes (openings) are formed in the middle portion of the diaphragm, while no opening portion is formed in the circumferential portion of the diaphragm.
  • the contact increasing structure may be in the form of a plurality of solid fillers filled in the absorption tank 130A, as shown in FIG. 4(e).
  • the contact increasing structure is not limited to FIG. 4, and if it is a structure capable of increasing the contact between a mixture of ammonia and air and the absorption liquid, such as various examples of FIG. 4 may be combined, the contact increasing structure Any structure can be employed as
  • the absorption tank 130A is basically provided with an absorption liquid supply path 131A, a duct return path 132A, and an absorption tank gas detector 133A.
  • the absorbent liquid supply passage 131A connects the absorption tank 130A and the duct communication passage 121 and is formed to be opened and closed by an absorbent liquid supply passage switch 131Ad, so that when ammonia leakage occurs, the duct communication passage 121 ) to be filled with the absorbent. Meanwhile, as will be described in more detail later, an absorbent liquid injector 135A for supplementing the absorbent liquid in the absorption tank 130A is provided in preparation for the shortage of absorbent liquid as the absorbent liquid in the absorption tank 130A is supplied to another space. it is desirable
  • the duct return path 132A connects the duct 120 and the upper space of the absorbent liquid accommodated in the absorption tank 130A, and is formed to be opened and closed by the duct return path switch 132Ad.
  • the air from which ammonia is removed while passing through the absorption tank 130A can be discharged to the outside while sequentially passing through the duct return path 132A and the duct 120 .
  • the absorption tank 130A is additionally provided with a purified air exhaust passage 134A formed to be opened and closed by a purified air exhaust passage switch 134Ad to discharge purified air, and the duct 120 It is also possible to directly discharge the ammonia-removed air to the outside without having to go through it.
  • the absorption tank gas detector 133A is provided in the absorption tank 130A and serves to measure the ammonia concentration in the upper space of the absorption liquid contained in the absorption tank 130A or the pH of the absorption liquid.
  • the absorption tank gas detector 133A is shown in a form that is provided outside the absorption liquid to prevent submersion, but it does not have to be so, and is provided in the absorption liquid when gas is detected by measuring the pH of the absorption liquid.
  • the position of the detector may be variously changed.
  • FIG. 3 shows that one ventilation outlet 112 is connected to one absorption tank 130A
  • the present invention is not limited thereto. That is, a plurality of ammonia using facilities 500 can be managed by one absorption tank 130A. In this case, a plurality of ventilation discharge passages 112 can be connected to one absorption tank 130A. there is.
  • a basic embodiment of the ammonia release prevention and removal method of the present invention includes a leak gas detection step, an absorption tank connection step, and an ammonia removal step performed when ammonia leak occurs, and then a residual gas removal step performed to return to a normal state , a normal state recovery step, and a normal restoration completion step may be further included.
  • FIG. 5 shows the device configuration during the leak gas detection step of the ammonia release prevention and removal device of the present invention.
  • the leak gas detection step leaked ammonia gas is detected by the outer enclosure wall gas detector 113, and the ventilation inlet opener 111d and the duct communication passage opener 121d are closed.
  • the ventilation inlet switch 111d and the duct communication passage switch 121d are in an open state so that the inner space of the outer enclosure wall 110 can be naturally ventilated through the duct 120
  • toxic ammonia may be released into the external atmosphere, so the ventilation inlet opener 111d and the duct communication path opener (111d) to block the inner space of the outer enclosure wall 113 from the outside ( 121d) is closed.
  • FIG. 6 shows the device configuration during the absorption tank connection step of the ammonia release prevention and removal device of the present invention.
  • the ventilation outlet switch 112d, the absorbent liquid supply passage switch 131Ad, and the duct return switch 132Ad are opened to pass through the absorbent liquid supply passage 131A to the duct communication passage. (121) is filled with absorbent liquid.
  • the ventilation discharge path switch 112d and the duct return path switch 132Ad are already open even in the normal state, there is no change in their operation, but the closed absorbent liquid supply path switch 131Ad is opened.
  • the absorption liquid contained in the absorption tank 130A flows down into the duct communication passage 121 and is filled therein.
  • the absorption liquid is not only filled in the duct communication passage 121, but also the ventilation discharge passage 121. It will pour into the inner space of the outer enclosure wall 110 through the furnace 112. In this case, the ammonia using facility 500 may be submerged in the absorption liquid and flooded, which greatly increases the risk of facility failure. Therefore, in order to prevent this problem, the duct communication passage 121 is installed in the ventilation discharge passage 112 to exclude the absorption liquid supplied to the ventilation discharge passage 112 from flowing into the inner space of the outer enclosure wall 110. ) to be placed lower than
  • the ammonia use equipment 500 can be more reliably protected by the provision of the drainage tank 114 for collecting and accommodating the absorbent liquid flowing into the inner space of the outer enclosure wall 110 .
  • the ammonia removal step is performed by forcibly blowing the air in the inner space of the outer enclosure wall 110 toward the ventilation discharge passage 112 by the ventilation discharge passage blower 112f.
  • the mixture of ammonia and air discharged through the ventilation outlet 112 comes into contact with the absorption liquid filled in the duct communication passage 121 and passes through the absorption tank 130A.
  • the flow of air is indicated by a thick arrow and the flow of ammonia is indicated by a light arrow.
  • the absorbent liquid sprayer inside the outer enclosure wall 115 and the absorbent liquid sprayer inside the duct 122 spray absorbent liquid so that ammonia in the air is absorbed into the sprayed absorbent liquid so that ammonia can be removed more effectively. desirable.
  • the absorption liquid absorbs ammonia and the volume occupied by ammonia decreases, if the pressure in the outer space of the outer enclosure wall 110 is lower than atmospheric pressure, it may be difficult for air to be discharged to the outside no matter how forcedly blown.
  • the air injector 116 may inject air into the outer enclosure wall 110 so that the pressure of the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • the purified air exhaust path 134A is provided in the absorption tank 130A, the ammonia-removed air may be directly discharged to the outside without passing through the duct 120.
  • the leak gas detection step, the absorption tank connection step, and the ammonia removal step are sequentially performed so that the air mixed with ammonia is not immediately discharged to the outside but must pass through in contact with the absorbent liquid.
  • the mixed ammonia is absorbed into the absorption liquid to be removed as much as possible.
  • the path through which air is discharged is only the duct return path 132A or the purified air exhaust path 134A provided in the upper space of the absorption tank 130A, so that only the air that has passed through the absorption liquid is discharged. Since ammonia is sufficiently removed by the bar absorption liquid, the toxicity of the air discharged to the outside can be very effectively reduced to a safe level.
  • Figure 7 shows the device configuration during the residual gas removal step of the ammonia release prevention and removal device of the present invention.
  • the ammonia gas remaining in the inner space of the outer enclosure wall 110 is removed by forcible contact with the absorbent liquid by the air injected by the air injector 116 or the outer enclosure wall internal absorbent liquid.
  • the sprayer 115 and the absorbent liquid sprayer 122 inside the duct are removed by the sprayed absorbent liquid.
  • the method of spraying the absorbent is intuitive and convenient in that it can directly remove residual ammonia, but the removal rate may be somewhat slow.
  • Figure 8 shows the device configuration during the normal state recovery step of the ammonia release prevention and removal device of the present invention.
  • the absorbent liquid supply path switch 131Ad is closed, the absorbent liquid is replenished to the absorbent tank 130A by the absorbent liquid injector 135A, and the drain tank drain valve 114v and the duct communicate with each other.
  • the furnace drain valve 121r is opened, and the absorbent liquid filled in the outer enclosure wall 110 and the duct communication passage 121 is drained.
  • the ammonia using facility 500 only needs to be returned to an operable state. Accordingly, the absorbent liquid that remains unnecessarily is drained and removed, and the absorbent liquid that is insufficient after being discharged from the absorption tank 130A is replenished.
  • Figure 9 shows the device configuration at the normal recovery completion stage of the ammonia release prevention and removal device of the present invention.
  • the ventilation inlet opening and closing device 111d and the duct communication passage opening and closing device 121d are opened to complete the restoration to the normal state. That is, it returns to the original state in which natural ventilation is made in the absence of ammonia leakage.
  • the present invention even if ammonia leakage occurs, the toxicity of the air emitted to the outside can be effectively removed to a safe level by sequentially performing the leak gas detection step, the absorption tank connection step, and the ammonia removal step. After that, the residual gas removal step, the normal state recovery step, and the normal state restoration completion step are sequentially performed, so that the normal state can be returned very smoothly.
  • the path through which air is directly circulated through the outer enclosure wall 110 that is, the ventilation inflow path 111 and the duct communication path 121 are closed, but the air passes through the absorption liquid and circulates.
  • the path, that is, the duct return passage 132A is opened so that the ammonia-removed air can be naturally discharged through the duct 120.
  • the application embodiment differs from the basic embodiment in that the outer enclosure wall 110 is completely sealed by being closed up to the duct return path 132A.
  • the leakage gas detection step, the absorption tank connection step, and the ammonia removal step are sequentially performed when ammonia leak occurs. That is, in the application embodiment, in the leakage gas detection step, as in the basic embodiment, leaked ammonia gas is detected by the outer enclosure wall gas detector 113, and the ventilation inlet opener 111d, the duct communication The furnace switch 121d is closed.
  • the switch 132Ad in the step of connecting the absorption tank, is further closed by the return of the duct. That is, in the absorption tank connection step of the application embodiment, the duct return path switch 132Ad is closed, and the ventilation discharge path switch 112d and the absorbent liquid supply path switch 131Ad are opened, so that the ammonia use equipment 500 ) The space is completely blocked from the external environment, and the absorbent liquid is filled into the duct communication passage 121 through the absorbent liquid supply path 131A.
  • the duct return path 132A since the duct return path 132A is open, air is discharged to the outside through the absorbent liquid, so that there is no fear that the pressure in the inner space of the outer enclosure wall 110 is excessively increased.
  • the duct return path 132A As the duct return path 132A is closed, the inner space of the outer enclosure wall 110 is completely blocked from the external environment, so that the pressure in the inner space of the outer enclosure wall 110 is significantly increased.
  • the flow of air flowing through the ventilation outlet 112 may not be made naturally as in the basic embodiment.
  • the opening of the ventilation discharge path switch 112d is adjusted according to the ammonia removal rate. It is controlled and opened so that the air flow is properly controlled. That is, in the ammonia removal step of the application embodiment, the ventilation discharge path switch 112d is controlled and opened so that the opening degree is adjusted according to the ammonia removal rate, so that ammonia and air discharged through the ventilation discharge path 112 are opened.
  • Ammonia is dissolved and removed in the process of passing through the absorption tank 130A in contact with the absorption liquid filled in the duct communication passage 121, and ammonia is removed while passing through the absorption tank 130A. .
  • the outer enclosure wall 110 and the absorption tank 130A must be designed to have pressure resistance, and several switches must be selected in the form of valves to have pressure resistance.
  • the absorption tank 130B and devices included therein will be described.
  • the absorption tank 130B serves to accommodate the ammonia absorption liquid, and when ammonia leakage occurs in the ammonia using facility 500, the absorption liquid is supplied to the space where ammonia is distributed so that the ammonia can be maximally absorbed and removed from the air. .
  • the mixture of ammonia and air is discharged through the absorption tank 130B without being discharged to the outside as it is. That is, as the mixture of ammonia and air proceeds, it is brought into contact with the absorption liquid in the absorption tank 130B as much as possible, so that ammonia mixed in the air is removed as much as possible before being discharged to the outside.
  • the absorption tank 130B is basically provided with a tank communication path 131B, a duct return path 132B, an absorption tank gas detector 133B, and an absorption liquid circulation pump 134B, to increase contact between ammonia and absorption liquid.
  • an absorbent receiving portion 135B may be further provided.
  • the tank communication passage 131B connects the absorption tank 130B and the ventilation discharge passage 112 and is formed to be opened and closed by the tank communication passage opener 131Bd, so that the air flowing through the ventilation discharge passage 112 Air or a mixture of ammonia and air can be smoothly circulated into the empty space in the absorption tank 130B.
  • the tank communication passage 131B is formed at a place higher than the level of the absorbent liquid filled in the lower side of the absorption tank 130B, so that the absorbent liquid does not flow backward and flow into the inner space of the outer enclosure wall 110.
  • the tank communication passage 131B may be arranged lower than the ventilation discharge passage 112 (although not shown on the drawings).
  • the duct return path 132B connects the duct 120 and the upper space of the absorption liquid accommodated in the absorption tank 130B, and is formed to be opened and closed by the duct return path switch 132Bd. Air from which ammonia is removed while passing through the absorption tank 130B can be discharged to the outside while sequentially passing through the duct return path 132B and the duct 120 .
  • the absorption tank (130B) is additionally provided with a purified air exhaust passage (136B) formed to be opened and closed by a purified air exhaust passage switch (136Bd) for discharging purified air, and the duct (120) It is also possible to directly discharge the ammonia-removed air to the outside without having to go through it.
  • the absorption tank gas sensor 133B is provided in the absorption tank 130B and serves to measure the ammonia concentration in the upper space of the absorption liquid contained in the absorption tank 130B or the pH of the absorption liquid.
  • the absorption tank gas detector 133B is shown in a form that is provided outside the absorption liquid to prevent submersion. Depending on the gas detection principle of the detector, the position of the detector may be variously changed. In addition, it is not necessary to have only one absorption tank gas detector 133B, and a plurality of absorption tank gas detectors 133B may be provided at different heights to monitor the ammonia removal rate.
  • the absorbent liquid circulation pump 134B is provided in the absorbent liquid circulation passage 134Bp for pumping the absorbent liquid by lifting the absorbent liquid accommodated in the lower side of the absorption tank 130B and supplying the absorbent liquid from the upper side of the absorber tank 130B to circulate it. do.
  • Ammonia leaks out in a gaseous state, and the ammonia absorption liquid is a liquid. Accordingly, if the absorption tank 130B is filled with the absorption liquid in a liquid state, it may be difficult for the mixture of ammonia and air in a gaseous state to smoothly pass through the absorption liquid.
  • the absorption tank 130B is configured to contain the absorption liquid and have a sufficient empty space therein so that the gas can pass through smoothly.
  • the absorbent liquid accumulated on the lower side is pumped to the absorbent liquid circulation pump 134B through the absorbent liquid circulation passage 134Bp, raised up, and sprayed again from the upper side. It is to be made so that it can be circulated in the entire inner space of the absorption tank (130B).
  • the absorbent liquid circulation pump 134B may always circulate the same amount, but circulating the absorbent liquid at all times causes unnecessary energy waste. Accordingly, the absorbent liquid circulation pump 134B does not circulate the absorbent liquid or circulates only a minimum amount of the absorbent liquid under normal conditions, but increases the circulation amount of the absorbent liquid when ammonia leakage is detected. Of course, when ammonia is removed and no longer detected, energy waste is prevented by returning to the minimum operation mode as usual. That is, the ammonia release prevention and removal device 100B determines the amount of absorbent liquid circulated by the absorbent liquid circulation pump 134B according to the amount of ammonia leakage detected by the outer enclosure wall gas detector 113 or the absorption tank gas detector 133B. It is formed to increase or decrease.
  • an absorbent liquid replenishment path 134Ba for replenishing a new absorbent liquid on the absorbent liquid circulation path 134Bp and an absorbent liquid processing furnace 134Bb for discharging the absorbent liquid that has absorbed ammonia to be treated externally are provided on the absorbent liquid circulation path 134Bp.
  • the absorbent liquid replenishment path 134Ba is installed at the rear of the absorbent liquid circulation pump 134B, and the absorbent liquid treatment path 134Bb is installed in front of the absorbent liquid circulation pump 134B.
  • the absorbent liquid circulation pump There is an advantage in that more absorbent liquid can be smoothly pumped by the pumping force effect of 134B.
  • the new absorbent liquid is mixed with the absorbent liquid that has absorbed ammonia in the absorption tank 130B, and in the process of partially discharging the mixed absorbent liquid through the absorbent liquid processing furnace 134Bb, some of the new absorbent liquid is transferred to the absorbent liquid in the absorption tank 130B. (130B) there is a concern that it is not recycled and discharged as it is. In consideration of these various circumstances, the location of the absorbent liquid replenishment path 134Ba and the absorbent liquid treatment furnace 134Bb may be appropriately changed and designed.
  • an absorbent liquid accommodating unit 135B is provided.
  • a plurality of absorbent liquid accommodating units 135B are provided in the absorption tank 130B to disperse and accommodate the absorbent liquid, thereby further increasing the contact between ammonia and the absorbent liquid.
  • the role of the absorbent liquid accommodating part 135B and its location will be described in more detail in [2] , where the overall ammonia treatment process will be described.
  • FIG. 11 shows that one ventilation outlet 112 is connected to one absorption tank 130B
  • the present invention is not limited thereto. That is, a plurality of ammonia using facilities 500 can be managed by one absorption tank 130B. In this case, a plurality of ventilation outlets 112 can be connected to one absorption tank 130B. there is.
  • the ammonia release prevention and removal method of the present invention includes a leak gas detection step, an absorption liquid amount increase step, and an ammonia removal step performed when ammonia leak occurs, and then a residual gas removal step performed to return to a normal state, and an absorption liquid amount A reduction step may be further included.
  • the leakage gas detection step, the absorption tank connection step, and the ammonia removal step which are sequentially performed when ammonia leak occurs, will be described in more detail.
  • the leak gas detection step leaked ammonia gas is detected by the outer enclosure wall gas detector 113 .
  • the ventilation inlet opener 111d, the tank communication path opener 131Bd, and the duct return opener 132B are in an open state, the inner space of the outer enclosure wall 110 naturally changes to the duct ( 120) to allow ventilation.
  • the ammonia release prevention and removal device 100B is provided with the duct communication passage 121, in the normal state, it is open to the duct communication passage opener 121d, so that the air It is discharged through the duct 120.
  • the duct leak prevention step in which the duct communication path opener 121d is closed is performed immediately.
  • the contact between the mixture of ammonia and air and the absorption liquid is increased by increasing the amount of the absorbent liquid circulated by the absorbent liquid circulation pump 134B.
  • the absorption liquid accommodating part 135B is further provided in the absorption tank 130B. Contact can be further increased while fully utilizing the entire inner space of the absorption tank 130B.
  • the mixture of ammonia and air discharged through the ventilation discharge passage 112 flows into the absorption tank 130B through the ventilation discharge passage 112 and the tank communication passage 131B and passes therethrough.
  • the mixture of ammonia and air passes through the absorption tank 130B, ammonia is dissolved in the absorption liquid and removed, and ammonia is removed while passing through the absorption tank 130B, and the purified air is returned to the duct 132B. ) through which it can be discharged to the outside.
  • the absorbent liquid amount increasing step is basically performed to increase the absorbent liquid amount circulated by the absorbent liquid circulation pump 134B.
  • the absorbent liquid accommodating portions 135B are provided, the contact between ammonia and the absorption liquid is further increased. The arrangement of the absorbent liquid accommodating portion 135B for more effective contact between ammonia and absorbent liquid will be described below.
  • a plurality of absorbent liquid accommodating portions 135B are distributed and installed in the inner space of the absorption tank 130B.
  • the absorption tank 130B it is common for the absorption tank 130B to be constructed in the form of an absorption tower elongated in the vertical direction, and therefore, the plurality of absorbent liquid accommodating portions 135B may be vertically spaced apart as shown.
  • the absorption tank 130B is specially constructed in a form spread widely on the ground, the plurality of absorbent liquid accommodating portions 135B may be distributed and disposed in the horizontal direction.
  • the absorption tank has a shape extending vertically as shown in FIGS. 11 and 12, and thus the plurality of absorbent liquid accommodating portions 135B are vertically spaced apart.
  • the absorbent liquid receiver 135B disposed on the upper side is spaced apart so that the absorbent liquid overflowing from the absorbent liquid receiver 135B disposed on the lower side can be reaccepted to the lower side of the absorbent liquid receiver 135B or the absorption tank 130B ( 135B) is preferably arranged so that they are offset from each other.
  • the flow of air is indicated by thick arrows, and the flow of ammonia is indicated by light arrows.
  • the ammonia concentration was high at the lowermost side, the ammonia was removed each time as the mixture of ammonia and air continued to rise while encountering the other absorption liquid receiving portion 135B, and finally at the uppermost side. It is readily apparent that the ammonia is completely removed leaving only purified air.
  • the absorption liquid is designed to better absorb ammonia because it is less in contact with ammonia as it is located on the upper side, ammonia is better removed as the mixture of ammonia and air rises.
  • the absorbent liquid sprayer inside the outer enclosure wall 115 and the absorbent liquid sprayer inside the duct 122 spray absorbent liquid so that ammonia in the air is absorbed into the sprayed absorbent liquid so that ammonia can be removed more effectively. desirable.
  • the absorption liquid absorbs ammonia and the volume occupied by ammonia decreases, if the pressure in the outer space of the outer enclosure wall 110 is lower than atmospheric pressure, it may be difficult for air to be discharged to the outside no matter how forcedly blown.
  • the air injector 116 may inject air into the outer enclosure wall 110 so that the pressure of the inner space of the outer enclosure wall 110 sensed by the pressure sensor 116p maintains atmospheric pressure.
  • the purified air exhaust path 136B is provided in the absorption tank 130B, the ammonia-removed air may be directly discharged to the outside without passing through the duct 120.
  • the absorbent liquid sprayed inside the outer wall 110 is collected in the lower part of the inner space of the outer wall 110.
  • the level of the absorbent liquid in the absorption tank 130B may increase.
  • the absorption liquid may unexpectedly flow backward and penetrate into the inner space of the outer enclosure wall 110 through the ventilation outlet 112.
  • the ammonia using facility 500 may be submerged in the absorption liquid and flooded, which greatly increases the risk of facility failure. Therefore, in order to prevent this problem, the tank communication passage 131B is provided to prevent the absorption liquid supplied to the ventilation discharge passage 112 from flowing into the inner space of the outer enclosure wall 110. ) may be arranged lower than.
  • the ammonia use equipment 500 can be more reliably protected by the provision of the drainage tank 114 for collecting and accommodating the absorbent liquid flowing into the inner space of the outer enclosure wall 110 .
  • the leak gas detection step, the step of increasing the amount of absorption liquid, and the step of removing ammonia are sequentially performed so that the air mixed with ammonia is not immediately discharged to the outside but must pass through in contact with the absorption liquid.
  • the mixed ammonia is absorbed into the absorption liquid to be removed as much as possible.
  • the path through which air is discharged is only the duct return path 132B or the purified air exhaust path 136B provided in the upper space of the absorption tank 130B, only the air that has passed through the absorption liquid is discharged. Since ammonia is sufficiently removed by the bar absorption liquid, the toxicity of the air discharged to the outside can be very effectively reduced to a safe level.
  • the ammonia gas remaining in the inner space of the outer enclosure wall 110 is removed by forcible contact with the absorbent liquid by the air injected by the air injector 116 or the outer enclosure wall internal absorbent liquid.
  • the sprayer 115 and the absorbent liquid sprayer 122 inside the duct are removed by the sprayed absorbent liquid.
  • the method of spraying the absorbent is intuitive and convenient in that it can directly remove residual ammonia, but the removal rate may be somewhat slow.
  • the pressure in the inner space of the outer enclosure wall 110 increases, so that the air is forcibly moved more toward the space filled with the absorbent liquid, and the remaining ammonia gas is very effectively absorbed into the absorbent liquid. can be absorbed and eliminated.
  • the absorption liquid amount circulated by the absorption liquid circulation pump 134B is reduced.
  • the absorbent liquid circulation pump 134B is adjusted to minimize the amount of absorbent liquid to be circulated as in the normal state.
  • the drain tank drain valve 114v is opened, and an operation such as draining the absorbent liquid filled in the outer sealing wall 110 may be performed.
  • the present invention even if ammonia leakage occurs, it is possible to effectively remove the toxicity of the air emitted to the outside to a safe level by sequentially performing the leaked gas detection step, the absorption liquid amount increase step, and the ammonia removal step. After that, the step of removing residual gas and the step of reducing the amount of absorption liquid are sequentially performed, so that it can be returned to the original state very smoothly.
  • the gas-liquid contact layer 140 is distributed in the inner space of the absorption tank 130C to increase contact between the mixture of ammonia and air and the absorption liquid.
  • 14 shows an embodiment of the absorption tank of the ammonia release prevention and removal device of the present invention, showing various examples of the gas-liquid contact layer 140.
  • the gas-liquid contact layer 140 as shown in FIGS. 14(a) and (b), allows absorption liquid droplets or ammonia molecules moving in the air to be smoothly dispersed and distributed to increase contact with each other. It may be formed in the form of a plurality of horizontal diaphragms spaced apart from each other in the vertical direction in the tank 130C and having at least one opening. Particularly, as shown in FIG.
  • some sidewalls are formed on the diaphragm so that the absorbent liquid in a liquid state can be slightly pooled.
  • it is formed in the form of a plurality of solid fillers filled in the absorption tank 130C, and a mixture of ammonia and air flows through the porous solid filler in a state where the absorption liquid is contained. You can increase contact by letting go.
  • the gas-liquid contact layer 140 operates even when the ejector 135C does not operate (ie, when ammonia leak does not occur), but air circulation occurs even when the ejector 135C operates (ie, when ammonia leak occurs). When driven, it operates to remove ammonia introduced into the absorption tank 130C without passing through the ejector 135C. Considering this point, it is preferable that the gas-liquid contact layer 140 be disposed closer to the ventilation discharge path 112 than to the ejector 135C, that is, below the ejector 135C.
  • the gas-liquid contact layer 140 may not sufficiently remove all ammonia, and an auxiliary gas-liquid contact layer 145 may be further provided to prepare for this case.
  • 21 shows a second application configuration of the ammonia release prevention and removal device of the present invention, further comprising the auxiliary gas-liquid contact layer 145. Similar to the gas-liquid contact layer 140, the auxiliary gas-liquid contact layer 145 is distributed in the absorption tank 130C to increase contact between the mixture of ammonia and air and the absorption liquid, and the gas-liquid contact layer ( It is preferable to be disposed above the ejector 135C to assist in removing ammonia that could not be removed in 140).
  • the absorption tank 130C and devices provided thereto will be described.
  • the absorption tank (130C) serves to accommodate the ammonia absorption liquid, and when ammonia leaks in the ammonia using facility 500, the absorption liquid is supplied to the space where ammonia is distributed so that the ammonia can be maximally absorbed and removed from the air. .
  • the space of the outer sealing wall 110 and the absorption tank 130C is completely isolated from the external environment, and air is supplied to the outer sealing wall 110 and the absorption tank. While circulating through (130C), ammonia is removed from the absorption tank (130C).
  • the ventilation inlet passage 111 and the air exhaust passage 137C are closed so that the outer enclosure wall 110 and the absorption tank ( 130C)
  • the inner space is formed to be isolated from the outside, so that the air injected into the inner space of the outer enclosure wall 110 through the air injector 116 is mixed with ammonia and discharged to the ventilation outlet 112.
  • the mixture of the absorbent liquid, ammonia and air discharged through the ventilation outlet 112 is supplied to the ejector 135C, mixed, and sprayed, whereby the ammonia is dissolved in the absorbent liquid and removed.
  • the ammonia release prevention and removal device (100C) leaks ammonia if the ammonia leak amount detected by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is less than a predetermined detection standard. It is determined that no occurrence occurs and is operated in the normal operation mode, and if the detection standard is higher than the detection standard, it is determined that ammonia leak occurs and is operated in the gas absorption mode.
  • the absorption tank 130C basically, a tank communication passage 131C, an ejector passage 132C, an air circulation passage 133C, an absorption tank gas detector 134C, the ejector 135C, and an absorbent liquid circulation pump 136C are provided.
  • An absorbent liquid injector 138C for replenishing the absorbent liquid and an absorbent liquid distributor 139C for increasing contact between ammonia and the absorbent liquid may be further provided.
  • the ejector 135C is provided in the absorption tank 130C and serves to receive air and absorption liquid, mix them, and eject them.
  • 15 shows an ejector embodiment of the ammonia release prevention and removal device of the present invention.
  • the ejector 135C has two inlets and one outlet, and there is a section where the passage area changes rapidly. Different fluids are introduced into each inlet, and as the passage area is rapidly narrowed, the introduced fluids flow at a high flow rate. Each of the fluids that have progressed so rapidly now flows while being mixed with each other very actively as the passage area is rapidly widened, and a mixture of these well-mixed fluids is discharged through the outlet.
  • the tank communication passage 131C, the ejector passage 132C, and the air circulation passage 133C form a passage through which air is circulated when ammonia leakage occurs.
  • the tank communication passage 131C connects the absorption tank 130C and the ventilation discharge passage 112 and is formed to be opened and closed by a tank communication passage valve 131Cv.
  • the ejector passage 132C connects the ejector 135C and the ventilation discharge passage 112 and is formed to be opened and closed by an ejector passage valve 132Cv.
  • the air circulation passage 133C connects the upper end of the absorption tank 130C and the upper end of the outer enclosure wall 110 and is formed to be opened and closed by an air circulation passage valve 133Cv so that air in the absorption tank 130C is transported to the outer enclosure. It is circulated into the sealing wall 110.
  • the absorption tank gas detector 134C is provided in the absorption tank 130C and serves to measure the ammonia concentration in the upper space of the absorption liquid contained in the absorption tank 130C or the pH of the absorption liquid.
  • the absorption tank gas detector 134C is provided outside the absorption liquid to prevent submersion, but it does not have to be this way, so that it is provided in the absorption liquid when detecting gas by measuring the pH of the absorption liquid.
  • the position of the detector may be variously changed.
  • the absorbent liquid circulation pump 136C is provided in the absorbent liquid circulation passage 136Cp, which is a path for raising the absorbent liquid accommodated in the lower side of the absorption tank 130C, and serves to pump the absorbent liquid.
  • a pump-ejector passage 136Ca and a pump-tank passage 136Cb may be connected to the absorption liquid circulation passage 136Cp.
  • the absorbent liquid pumped by the absorbent liquid circulation pump 136C and lifted up to the absorbent liquid circulation passage 136Cp is provided again from the upper side of the absorption tank 130C through the pump-tank passage 136Cb in the normal operation mode and is circulated. It can be.
  • the pump-ejector liquid is provided to the ejector 135C through the pump-ejector passage 136Ca, so that it is used to remove ammonia.
  • a pump-discharge passage 136Cc accommodated in the lower side of the absorption tank 130C and discharging the absorption liquid that has absorbed ammonia to be treated externally may be further connected to the absorption liquid circulation path 136Cp.
  • FIG. 22 is a third application configuration showing such a configuration. 22, the pump-ejector flow path 136Ca is connected to the absorbent liquid injector 138C instead of the absorbent liquid circulation path 136Cp, so that a new absorbent liquid that has not absorbed ammonia can be provided.
  • the air exhaust passage 137C forms a path through which air is ventilated when ammonia does not leak, and connects the inner space of the outer enclosure wall 110 and the duct 120 . More specifically, the air exhaust passage 137C is a passage connecting the upper end of the absorption tank 130C and the duct 120, and the air in the absorption tank 130C is forced by the air exhaust blower 137Cf. It is formed to blow air and discharge it through the duct 120. In addition, it is formed to be opened and closed by the air exhaust valve 137Cv so that it can be opened and closed during the normal operation mode and the gas absorption mode.
  • the absorbent liquid distributor 139C is formed in the form of a horizontal diaphragm provided adjacent to the absorbent liquid injector 138C, and a plurality of openings are distributed. As can be inferred from FIG. 13, the absorbent liquid is provided from the top of the absorption tank 130C through the absorbent liquid injector 138C or the pump-tank flow path 136Cb. At this time, the absorbent liquid distributor 139C provides the absorbent liquid. 14 (a), (b) by being provided below the position, on the same principle as the gas-liquid contact layer 140 of the embodiment of FIG. It is possible to smoothly increase the contact between the mixture of and the absorption liquid.
  • FIG. 13 shows that one ventilation outlet 112 is connected to one absorption tank 130C
  • the present invention is not limited thereto. That is, a plurality of ammonia using facilities 500 can be managed by one absorption tank 130C.
  • a plurality of outer enclosure walls 110 can be connected to one absorption tank 130C. there is.
  • at least one of the outer enclosure walls 110 accommodates the absorption liquid instead of directly accommodating the ammonia using facility 500, and is formed so that ammonia discharged from another external system flows in and the ammonia is removed by the absorption liquid.
  • 23 is a fourth application configuration showing such a configuration.
  • the contact increasing structure is first provided adjacent to the side where the absorbent liquid flows into the outer sealing wall 110, as shown in FIG. 24(a). It is formed in the form of a diaphragm in a horizontal direction and may be in the form of a distributor in which a plurality of openings are distributed. Alternatively, as shown in FIGS.
  • the contact increasing structure may be appropriately selected as at least one selected from among the various forms described above.
  • ammonia emission prevention and removal method using the ammonia emission prevention and removal device 100C of the present invention as described above will be described in detail step by step.
  • the inner space of the outer enclosure wall 110 communicates with the external environment to allow free ventilation, but when ammonia leakage occurs In a state in which the inner space of the outer wall 110 is completely isolated from the external environment, ammonia is continuously removed while air circulates through the outer wall 110 and the absorption tank 130C.
  • an operation mode when no ammonia leakage occurs is referred to as a "normal operation mode”
  • an operation mode when ammonia leakage occurs is referred to as a "gas absorption mode”.
  • additional absorption mode is an operation mode limited to a special case in which leakage of ammonia is greater than the estimated leakage amount of ammonia in the gas absorption mode.
  • FIG. 16 is a view for explaining a normal operation mode of the ammonia emission prevention and removal device of the present invention.
  • devices that do not operate in each mode are shaded for easier understanding.
  • normal operation mode operation is performed when ammonia leakage does not occur. A leaked ammonia gas is detected below a predetermined detection criterion."
  • the "detection standard” may be determined at a level of 25 ppm, which is a generally known safety standard, or may be determined at a lower level to increase safety, and may be appropriately determined according to the user's needs or purposes.
  • the operation in the normal operation mode includes an air introduction step and an air ventilation step, and may further include an absorbent liquid circulation step and a trace gas removal step.
  • the ventilation inlet 111 In the air introduction step, air is introduced into the inner space of the outer enclosure wall 110 through the ventilation inlet 111 . That is, at this stage, the ventilation inlet valve 111v is open, and the outer enclosure wall 110 is not isolated from the external environment.
  • the introduced air sequentially passes through the ventilation discharge path 112, the absorption tank 130C, and the air exhaust path 137C, and is discharged to the outside through the duct 120 to be ventilated. .
  • this operation can be realized by opening all the valves provided in the passages connecting the ventilation inflow passage 111 to the duct 120 .
  • the driving force for introducing air into the ventilation inlet passage 111 is applied by the air exhaust passage blower 137Cf provided on the air exhaust passage 137C. That is, air is sucked into the duct 120 by forcible blowing by the blower 137Cf through the air exhaust.
  • the absorption tank 130C and the inner space of the outer enclosure wall 110 communicating therewith When the pressure of is lowered, the outside air is sucked into the ventilation inlet 111 that is naturally open.
  • the absorption liquid circulation step and the trace gas removal step are performed in parallel with the process of passing air through the absorption tank 130C in the air ventilation step.
  • “ammonia leakage does not occur” refers to a case where the leakage amount is less than a predetermined "detection standard", that is, even when strictly "ammonia leakage does not occur", a small amount of ammonia is mixed with the ventilated air There may be.
  • concentration is lower than the safety standard, there is no immediate problem, but even a small amount of ammonia may adversely affect the environment in the long run if it is continuously discharged to the external environment. In order to prevent this problem, the absorption liquid circulation step and the trace gas removal step are performed.
  • the absorbent liquid circulation step is a step of increasing the contact between the absorbent liquid and ammonia by well distributing the absorbent liquid for removing ammonia throughout the inner space of the absorption tank 130C. More specifically, in the absorbent liquid circulation step, the absorbent liquid accommodated in the lower side of the absorption tank 130C by the absorbent liquid circulation pump 136C is pulled up along the absorbent liquid circulation passage 136Cp, and the absorbent liquid flows through the pump-tank passage ( 136Cb) is supplied again from the upper side of the absorption tank 130C and circulated.
  • the trace gas removal step is performed in parallel with the absorption liquid circulation step, and in the process of air passing through the absorption tank 130C in the air ventilation step, the absorbent liquid provided from the upper side of the absorption tank 130C enters the air. Trace amounts of ammonia are removed.
  • the absorption liquid sprayed from the upper side of the absorption tank 130C does not just fall down, but is contained in the gas-liquid contact layer 140 and is absorbed into the absorption tank 130C. (130C) May remain for some time in the middle of the inner space.
  • trace amounts of ammonia contained in the air may be further removed by the absorption liquid remaining in the gas-liquid contact layer 140 .
  • the air may escape directly through the duct 120 without passing through the absorption tank 130C by applying the first application configuration of FIG. 20 described above. That is, when the ammonia release prevention and removal device 100C includes the duct communication passage 121 as in the first application configuration of FIG. Ventilation may be achieved by sequentially passing through the duct communication passage 121 and being discharged to the outside through the duct 120 . In this case, the driving force for introducing air into the ventilation inlet 111 is applied by the duct communication passage blower 121f provided on the duct communication passage 121 .
  • gas absorption mode operation is performed when ammonia leak occurs.
  • ammonia leak means “a leak caused by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C. It is defined as "ammonia gas is detected above a predetermined detection standard”.
  • the gas absorption mode operation includes a leak gas detection step, an air forced injection step, a leak gas removal step, and a purified air circulation step, and may further include a residual gas removal step and an internal absorbent liquid drainage step.
  • the ammonia gas leaked by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C is detected as higher than a predetermined detection standard, and the ventilation inlet 111 and the The air exhaust path 137C is closed so that the outer wall 110 and the inner space of the absorption tank 130C are isolated from the outside.
  • the air forced injection step the air injected into the inner space of the outer enclosure wall 110 through the air injector 116 is mixed with ammonia and discharged to the ventilation outlet 112 .
  • forced blowing was performed by the blower to apply the driving force of the air flow.
  • the blowers do not apply the driving force of the air flow because complete isolation from the outside is achieved. Therefore, in the initial stage of leakage of ammonia, the air injector 116 may apply a driving force for actively flowing air from the inner space of the outer enclosure wall 110 to the inner space of the absorption tank 130C.
  • the pressure in the inner space of the absorption tank 130C becomes lower than the pressure in the inner space of the outer enclosure wall 110. Air can naturally flow from the inner space of the outer enclosure wall 110 to the inner space of the absorption tank 130C without being applied.
  • the air injector 110 maintains the pressure in the inner space of the outer enclosure wall 110 detected by the pressure sensor 116p at atmospheric pressure. It serves to inject air into the outer enclosure wall 110 so as to do so.
  • the mixture of the absorbent liquid, ammonia and air discharged through the ventilating discharge path 112 is supplied to the ejector 135C, mixed, and injected, whereby the ammonia is dissolved in the absorbent liquid and removed.
  • the ejector 135C can very actively mix the liquids introduced into the two inlets due to its device characteristics. In this process, contact between the absorption liquid and ammonia is very active, and therefore, ammonia can be removed with very high efficiency by passing through the ejector 135C.
  • the absorbent liquid supplied to the ejector 135C is basically the absorbent liquid accommodated in the lower side of the absorption tank 130C pulled up by the absorbent liquid circulation pump 136C as shown in FIG. It may be provided to the ejector 135C through the pump-ejector passage 136Ca.
  • the absorbent liquid ejected from the ejector 135C falls as it is and is accommodated in the lower side of the absorption tank 130C, and the absorbent liquid has already absorbed ammonia. That is, as time passes, the ammonia concentration of the absorption liquid accommodated in the lower side of the absorption tank 130C inevitably increases, and accordingly, the ammonia absorption efficiency may decrease over time.
  • the ammonia release prevention and removal device 100C includes an absorption liquid injector 138C for replenishing absorption liquid in the absorption tank 130C; includes In addition, at this time, in the step of removing the leaked gas, a portion of the absorbent liquid injected from the absorbent liquid injector 138C is bypassed and provided to the ejector 135C through the pump-ejector passage 136Ca. In this way, a new absorption liquid, that is, an absorption liquid that has never absorbed ammonia can be always provided to the ejector 135C, so that the efficiency of ammonia absorption does not decrease over time.
  • the air purified by removing ammonia while passing through the ejector 135C is returned to the outer enclosure wall 110 and circulated through the air circulation path 133C. Thereafter, the leaked gas removal step and the purified air circulation step are sequentially and repeatedly cycled. Even if ammonia is not completely removed from the air primarily introduced into the ejector 135C in the leakage gas removal step, the primarily purified air is returned to the outer enclosure wall 110 and inside the outer enclosure wall 110.
  • the concentration of ammonia in the air in the space falls. That is, it is natural that the ammonia concentration decreases during the second cycle compared to the first cycle, and therefore, as the number of cycles increases, the ammonia concentration in the air can continue to drop step by step.
  • the residual gas removal step and the internal absorbent liquid draining step are performed in parallel with a process in which ammonia is removed while air circulates through the absorption tank 130C and the outer enclosure wall 110 . That is, this is a step for allowing ammonia to be removed not only in the absorption tank 130C, but also in the outer enclosure wall 110 to be additionally removed.
  • the device for preventing and removing ammonia (100C) includes the water tank 114 and the absorbent liquid injector 115 inside the outer sealing wall.
  • the outer enclosure wall internal absorbent liquid injector 115 injects the absorbent liquid in the leak gas removal step and the purified air circulation step to remove the remaining ammonia gas in the inner space of the outer enclosure wall 110 .
  • some absorbent liquid is filled in the outer enclosure wall 110, and if this absorbent liquid contacts the ammonia using equipment 500, there is a possibility that the equipment may fail. Since the ammonia using equipment 500 is formed to be more depressed than the bottom surface on which it stands, the absorption liquid smoothly flows into the water tank 114 and is accommodated, and thus the risk of the absorption liquid coming into contact with the ammonia using equipment 500 is almost eliminated. .
  • the drain Drainage is made by the water tank drain valve 114v. Accordingly, the risk of contact with the ammonia using facility 500 by the absorption liquid is completely eliminated.
  • FIG. 18 is a view for explaining an additional absorption mode of the ammonia release prevention and removal device of the present invention.
  • additional absorption mode operation is performed in a special case where ammonia leakage is more than expected in the gas absorption mode.
  • the outer enclosure wall gas detector 113 or the absorption tank gas detector When the leaked ammonia gas is sensed to be greater than or equal to a predetermined maximum standard by 134C, an additional absorption mode operation is performed in parallel with the gas absorption mode.
  • the “maximum criterion" is naturally determined to be a higher value than the "detection criterion".
  • the operation in the additional absorption mode may include a step of determining additional leakage, a step of replenishing a new absorbent liquid, and a step of discharging the used absorbent liquid.
  • the level of leakage is determined in advance, and the amount of absorbent liquid is adjusted according to this level. is to decide This is the "maximum standard" described above.
  • an accident may occur due to a really unexpected cause, that is, for example, a practitioner accidentally scratches the facility while doing other work around the ammonia using facility 500, In this case, leakage will be far greater than is normally expected (i.e. "maximum standard").
  • the additional absorption mode is prepared for such a case, that is, it is a mode that can be additionally performed when absolutely necessary, but is not a mode that is always performed.
  • the leakage additional determination step it is determined that the leaked ammonia gas is equal to or greater than a predetermined maximum standard by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C.
  • the fact that the amount of ammonia leakage exceeds the maximum standard means that ammonia cannot be sufficiently removed with the operating amount of the absorbent, which was expected to be able to sufficiently remove ammonia in the design. Therefore, in the additional absorption mode, steps of replenishing a new absorption liquid and discharging the absorption liquid having sufficiently absorbed ammonia are included.
  • the ammonia release prevention and removal device 100C further includes the pump-discharge passage 136Cc and the absorption liquid injector 138C.
  • new absorbent liquid is replenished in the absorption tank 130C by the absorbent liquid injector 138C. Accordingly, ammonia leaked beyond the maximum standard is absorbed into the newly replenished absorption liquid and can be additionally removed.
  • the absorbent liquid accommodated in the lower side of the absorption tank 130C is pulled up through the absorbent liquid circulation passage 136Cp by the absorbent liquid circulation pump 136C, and all or part thereof is passed through the pump-discharge passage. (136Cc) is discharged to the outside. That is, by continuously discharging the absorbent liquid having a high ammonia concentration and continuously replenishing the new absorbent liquid that has not absorbed ammonia in its place, additional removal of ammonia can be smoothly performed even if the amount of ammonia leakage is greater than expected.
  • the recovery operation mode may include a step of determining whether leakage has occurred, a step of isolating the absorption tank, a step of replenishing a new absorbent liquid, and a step of discharging the used absorbent liquid.
  • the leaked ammonia gas is determined to be less than a predetermined detection standard by the outer enclosure wall gas detector 113 or the absorption tank gas detector 134C. Then, the recovery operation mode starts.
  • the absorption tank isolation step the supply of the absorbent liquid to the ejector 135C is stopped, the air circulation passage valve 133Cv is closed, and air circulation between the outer enclosure wall 110 and the absorption tank 130C is achieved. are isolated from each other so as to cease. At this point, if the absorbent liquid remains in the outer enclosure wall 110, a process of draining it from the drain tank 114 may also be performed.
  • new absorbent liquid is replenished in the absorption tank 130C by the absorbent liquid injector 138C.
  • the absorbent liquid accommodated in the lower side of the absorption tank 130C is pulled up through the absorbent liquid circulation passage 136Cp by the absorbent liquid circulation pump 136C, and the pump- It is discharged to the outside through the discharge passage (136Cc).
  • the recovery operation mode ends and the ventilation inlet 111 and the ventilation outlet 112 are opened. Then, the normal operation mode is performed again.
  • an absorption tank for absorbing ammonia in a facility, even if ammonia, which has both flammable and toxic properties, leaks from the facility, it is quickly and safely diluted and removed when released into the atmosphere, thereby greatly improving facility stability and user safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

La présente invention concerne un dispositif de prévention et d'élimination de la libération d'ammoniac. Le but de la présente invention est de fournir un dispositif de prévention et d'élimination de la libération d'ammoniac qui peut fondamentalement empêcher la fuite d'ammoniac dans l'atmosphère à l'aide d'un liquide absorbant, éliminer de manière efficace l'ammoniac résiduel, et faciliter la restauration à la normale après élimination de l'ammoniac. Le dispositif de prévention et d'élimination d'ammoniac selon la présente invention comprend un réservoir d'absorption recevant un liquide d'absorption d'ammoniac et disposé entre une paroi d'étanchéité externe pour recevoir une installation utilisant de l'ammoniac et un conduit dans lequel un écoulement d'air constant est formé de telle sorte que l'ammoniac qui s'échappe de l'installation utilisant de l'ammoniac est absorbé tout en traversant le réservoir d'absorption, ce qui permet d'inhiber fondamentalement la libération d'ammoniac dans l'atmosphère.
PCT/KR2022/013022 2021-09-01 2022-08-31 Dispositif de prévention et d'élimination de la libération d'ammoniac WO2023033537A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2021-0116281 2021-09-01
KR1020210116286A KR102576207B1 (ko) 2021-09-01 2021-09-01 암모니아 방출방지 및 제거장치
KR1020210116280A KR102576203B1 (ko) 2021-09-01 2021-09-01 암모니아 방출방지 및 제거장치
KR10-2021-0116280 2021-09-01
KR1020210116281A KR102576205B1 (ko) 2021-09-01 2021-09-01 암모니아 방출방지 및 제거장치
KR10-2021-0116286 2021-09-01

Publications (1)

Publication Number Publication Date
WO2023033537A1 true WO2023033537A1 (fr) 2023-03-09

Family

ID=85411356

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/013022 WO2023033537A1 (fr) 2021-09-01 2022-08-31 Dispositif de prévention et d'élimination de la libération d'ammoniac

Country Status (1)

Country Link
WO (1) WO2023033537A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116422108A (zh) * 2023-03-23 2023-07-14 滕州祥润化工有限公司 一种氨水装卸时的氨气回收器
CN117983040A (zh) * 2024-01-16 2024-05-07 浙江华南环保装备股份有限公司 一种液氯挥发蒸汽处理用应急吸收装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1130463A (ja) * 1997-07-11 1999-02-02 Tokyo Gas Co Ltd アンモニア吸収式冷凍装置
JP2001239130A (ja) * 2000-02-28 2001-09-04 Ishikawajima Plant Construction Co Ltd アンモニア除害装置
JP2002263445A (ja) * 2001-03-06 2002-09-17 Tokyo Reikaki Kogyo Kk アンモニアガス除去装置
JP2006026555A (ja) * 2004-07-16 2006-02-02 Hachiyo Engneering Kk アンモニアガスの除害システム
JP2015147606A (ja) * 2014-02-07 2015-08-20 株式会社Ihi アンモニア貯蔵設備

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1130463A (ja) * 1997-07-11 1999-02-02 Tokyo Gas Co Ltd アンモニア吸収式冷凍装置
JP2001239130A (ja) * 2000-02-28 2001-09-04 Ishikawajima Plant Construction Co Ltd アンモニア除害装置
JP2002263445A (ja) * 2001-03-06 2002-09-17 Tokyo Reikaki Kogyo Kk アンモニアガス除去装置
JP2006026555A (ja) * 2004-07-16 2006-02-02 Hachiyo Engneering Kk アンモニアガスの除害システム
JP2015147606A (ja) * 2014-02-07 2015-08-20 株式会社Ihi アンモニア貯蔵設備

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116422108A (zh) * 2023-03-23 2023-07-14 滕州祥润化工有限公司 一种氨水装卸时的氨气回收器
CN116422108B (zh) * 2023-03-23 2023-09-15 滕州祥润化工有限公司 一种氨水装卸时的氨气回收器
CN117983040A (zh) * 2024-01-16 2024-05-07 浙江华南环保装备股份有限公司 一种液氯挥发蒸汽处理用应急吸收装置

Similar Documents

Publication Publication Date Title
WO2023033537A1 (fr) Dispositif de prévention et d'élimination de la libération d'ammoniac
WO2011111959A2 (fr) Appareil de sécurité pour contenant
WO2012087057A2 (fr) Appareil pour le traitement de vêtements
WO2019124838A1 (fr) Salle d'évacuation incendie
WO2014133332A1 (fr) Réfrigérateur et méthode de commande de celui-ci
WO2017052067A1 (fr) Module de stérilisation, dispositif de purification d'eau, et système comprenant un dispositif de purification d'eau
WO2015050410A1 (fr) Equipement de sécurité passif et centrale nucléaire incluant celui-ci
WO2015137725A1 (fr) Réfrigérateur
WO2016104890A1 (fr) Grue à portique permettant l'inspection d'une soute
EP3114269A1 (fr) Lave-linge
EP2900860A1 (fr) Appareil de pulvérisation de vapeur et machine à sécher les vêtements le comprenant
EP3105519A1 (fr) Réfrigérateur
WO2021137408A1 (fr) Appareil de climatisation
WO2019194327A1 (fr) Récipient de stockage de plaquettes
WO2016108565A1 (fr) Appareil de traitement d'eau
WO2018016863A1 (fr) Dispositif de réduction du frottement et navire comportant celui-ci
WO2017155309A1 (fr) Machine à laver
WO2019027063A1 (fr) Système de reliquéfaction de gaz d'évaporation, procédé d'évacuation d'huile de lubrification dans un système de reliquéfaction de gaz d'évaporation, et procédé d'alimentation en carburant de moteur
WO2020013472A1 (fr) Buse d'aspirateur
WO2021157815A1 (fr) Appareil de climatisation
WO2024248505A1 (fr) Réservoir thermiquement isolé, navire le comprenant, et procédé de formation de vide dans un réservoir thermiquement isolé
WO2022108316A1 (fr) Appareil de traitement de linge et procédé de commande de celui-ci
WO2014038847A1 (fr) Appareil de pulvérisation de vapeur et machine à sécher les vêtements le comprenant
WO2021149896A1 (fr) Appareil de climatisation
WO2023140672A1 (fr) Récipient de batterie

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22865039

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22865039

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载