WO2018132775A1 - Appareil d'unité de surveillance intelligente assurant une pression et un flux en amont et en aval - Google Patents
Appareil d'unité de surveillance intelligente assurant une pression et un flux en amont et en aval Download PDFInfo
- Publication number
- WO2018132775A1 WO2018132775A1 PCT/US2018/013672 US2018013672W WO2018132775A1 WO 2018132775 A1 WO2018132775 A1 WO 2018132775A1 US 2018013672 W US2018013672 W US 2018013672W WO 2018132775 A1 WO2018132775 A1 WO 2018132775A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- cartridge
- downstream
- control device
- upstream
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/071—Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/08—Arrangement of draining devices, e.g. manual shut-off valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/095—Component holders or housings, e.g. boundary boxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/15—Leakage reduction or detection in water storage or distribution
Definitions
- This disclosure generally relates to a fluid control apparatus comprising real-time monitoring and active management of upstream and downstream pressure and flow, incorporating self-cleaning and plug-and-play maintenance, whereby said apparatus is herein referred to as a Smart Monitoring Unit or "SMU" for short.
- SMU Smart Monitoring Unit
- Water to residential sites may be delivered by the municipal water system by a service line branch for each particular site.
- Water damage may be devastating to the home owner. Water damage may negatively impact the site structure, furnishings, health fitness for occupancy, and may require costly repair and remediation.
- Water damage may or may not be covered by homeowner's insurance, may negatively affect homeowner's insurance rates, and may result in the temporary or permanent loss of insurance coverage, or ability to change insurance providers.
- passive reducers To reduce the municipal water supply pressure at the service line to a safe operating pressure into the home, passive pressure reducing devices, referred to hereinafter as “passive reducers”, may be used.
- passive reducers are part of a property's private water system. As such, the responsibility for their installation and maintenance rests with the property owner.
- the property owner may hire a licensed plumbing professional to perform the installation and make the necessary adjustments to the downstream pressure setting to be in accordance with the home's required minimum and maximum water pressure operating range.
- An installer may attach a pressure gauge to a hose bibcock downstream of the passive reducer in order to manually set the correct downstream pressure. If a hose bibcock is not available to verify the pressure setting, or if the installer does not have a pressure gauge, the installer may manually set the downstream pressure based on an estimate, or may leave the downstream pressure to the stated factory default setting. [0018] Under normal passive reducer operation, due to fluctuations in the municipal water system's supply and demand, passive reducers may give way throughout the day to fluctuating downstream pressures which may exceed the safe operating limits.
- the passive reducer's internal filter may get clogged, and scale, minerals, and particulates may accumulate on the passive reducer's internals, preventing correct operation, all of which may result in a failure and unsafe operating downstream pressure.
- Periodic maintenance of the passive reducer may be complex and require manual disassembly, cleaning or replacing the internal components, and reassembly.
- the first step in performing maintenance would be to manually shut off the upstream water supply.
- the water must be manually shut off at the main water shut-off valve, which may be located directly at the service line located at the street curb.
- the service line shut-off valve may be difficult to access, as well as difficult to operate, especially if it has not been operated recently.
- the internal plumbing system must be drained. To do this, a number of downstream faucets may need to be manually turned on. This internal drainage may release scale, particulates, or other impurities into the plumbing system, which may feed into and further foul the passive reducer's internals. [0027] The passive reducer must then be manually disassembled in order to expose and remove the device internals. During disassembly any water remaining in the internal plumbing system may be released and may need to be contained to avoid water damage.
- Damaged passive reducer internal parts may need to be replaced. Internal parts in good operating condition may be gently cleaned by hand with soap and water. Care should be taken to ensure that grease or other contaminants are not introduced during cleaning, as this may affect the proper operation. Once the cleaning and/or parts replacement is complete, the passive reducer must then be manually reassembled.
- the first step would be to manually shut off the upstream water supply.
- the water must be manually shut off at the main water shut-off valve, which may be located directly at the service line located at the street curb.
- the service line shut-off valve may be difficult to access, as well as difficult to operate, especially if it has not been operated recently.
- the defective passive reducer must then be manually removed. During removal any water remaining in the internal plumbing system may be released and may need to contained to avoid water damage. [0037] Once the defective passive reducer is removed, a new passive reducer may be manually installed. If the new device is distinct than the old device, laborious and costly modifications to the plumbing system may be required.
- water supplied by the municipal water system may exceed a residential site's safe operating pressure which may result in significant damage and water loss.
- Passive reducers may be used to bring down the service water supply to a safe operating pressure. Under normal passive reducer operation, the downstream pressure may still exceed safe operating pressure. Since these passive reducers may fail to operate properly within the first year of installation leading to unsafe operating pressures, the manufacturer may require annual maintenance. Site owners may not know when downstream pressure has exceeded safe operating conditions or when the passive reducer has failed or is in need of maintenance. Since maintenance of the passive reducer involves significant labor costs, multiple replacement parts, and a risk of improper servicing, a defective passive reducer may be replaced in its entirety. Replacement of a passive reducer may be as costly and complex as service maintenance.
- a properly maintained passive reducer or a new replacement may be prone to the same operating and maintenance issues as the original device.
- passive reducers may not be effective at maintaining pressure at a safe operating level and may require an unrealistic level and frequency of maintenance beyond the capabilities of many site owners. These passive reducers are therefore unreliable and may result in costly damages.
- a fluid control apparatus comprising real-time monitoring and active flow management of upstream and downstream pressure and flow, incorporating self- cleaning and plug-and-play maintenance that overcomes the many drawbacks of passive reducers.
- the apparatus integrates a flow meter, an upstream shut-off valve, an upstream pressure sensor, a pressure management device, a downstream pressure sensor, a drain, purge, and flush valve, a downstream shut-off valve, a data receiving device, a data storage device, a computing device, and a communication device.
- the data receiving device, the data storage device, the computing device, and the communication device are integrated into a single control device.
- control device is set to actively maintain and adjust the apparatus downstream pressure within a set operating band under flow conditions.
- control device is set to actively maintain and adjust the apparatus downstream pressure within a set operating band under no-flow conditions.
- the upstream shut-off valve is electro-mechanically actuated by the control device.
- the downstream shut-off valve is electro-mechanically actuated by the control device.
- the upstream and downstream shut-off valves is controlled to open and close slowly.
- the pressure management device is contained within a pressure management cartridge.
- the cartridge fits inside a receptacle, which is a permanent component of the apparatus.
- the pressure management cartridge is replaceable and disposable.
- the pressure management cartridge includes a pressure reduction valve which sets the apparatus downstream pressure based on continuously monitored flow conditions.
- the cartridge has a guide pin which fits in a slot in the receptacle and guides the cartridge into place.
- the receptacle has a sensor which senses when the cartridge has been inserted correctly.
- a locking mechanism when the sensor indicates that the cartridge is inserted correctly, a locking mechanism then secures the cartridge in place.
- both the receptacle and cartridge have upstream and downstream seals so that the cartridge is able to hold pressure when the cartridge is locked in place.
- the receptacle includes an electro-mechanical actuator which mates with the cartridge gear.
- the electro-mechanical actuator rotates the cartridge gear until a downstream pressure, set by the control device, is achieved.
- the pressure management cartridge includes upstream and downstream filters to reduce fouling of the cartridge internals.
- the apparatus performs self-cleaning operations to reduce fouling of the cartridge internals.
- the apparatus performs self-cleaning operations to reduce fouling of the electro-mechanical valves.
- the apparatus opens the drain, purge, and flush valve to purge the plumbing system to maintain a safe downstream pressure under no-flow conditions.
- the apparatus actively compensates for the pressure drop through the pressure management cartridge in high-flow conditions.
- control device determines that the pressure
- control device determines that the pressure management cartridge has degraded beyond safe operation and must be replaced, and closes the upstream and downstream shut-off valves to prevent damage to downstream components.
- control device opens the drain, purge, and flush valve to drain and depress urize the apparatus.
- control device determines that the apparatus has been depressurized and unlocks the pressure management cartridge, so that the cartridge can be replaced.
- control device closes the drain, purge, and flush valve.
- the control device opens the upstream and downstream shut-off valves.
- the upstream and downstream electro-mechanical shut-off valves will remain open, and the electro-mechanical drain valve will remain closed.
- FIG. 1 is an illustrative example of a preferred SMU installation.
- FIG. 2 is an illustrative example of an embodiment of the SMU.
- FIG. 3 is an illustrative example of an embodiment of the SMU pressure management unit receptacle.
- FIG. 4 is an illustrative example of an embodiment of the SMU pressure management unit cartridge.
- FIG. 1 is an illustrative example of a preferred SMU installation.
- a main liquid source manual shut-off valve is 101.
- a manual shut-off valve upstream of the SMU is 102.
- the SMU is 103.
- a manual shut-off valve downstream of the SMU is 104.
- a hose bibcock is 105.
- the downstream liquid supply line is 106.
- FIG. 2 is an illustrative example of an embodiment of the SMU 103.
- the SMU 103 upstream connector 201 attaches to the unregulated upstream liquid source.
- An upstream electro-mechanical shut-off valve is 202.
- a flow sensor is 203.
- An upstream pressure sensor is 204.
- a pressure management cartridge receptacle is 205.
- a pressure management cartridge is 206.
- the receptacle 205 is integral to the SMU 103, while the cartridge 206 is removable and designed to be easily installed and replaced.
- a downstream pressure sensor is 207.
- a combination drain, purge, and flush valve is 208.
- a downstream electro-mechanical shut-off valve is 209.
- the SMU 103 downstream connector 210 attaches to the downstream liquid flow line.
- a data receiving device, a data storage device, a computing device, and a communication device are integrated into a single device, hereinafter referred to as the SMU control device 211, which is plugged into a power supply using power plug 212.
- the upstream electro-mechanical shut-off valve 202, flow sensor 203, upstream pressure sensor 204, pressure management cartridge receptacle 205, downstream pressure sensor 207, combination drain, purge, and flush valve 208, and downstream electro-mechanical shut-off valve 209 are all connected to the control device 211.
- FIG. 3 is an illustrative example of an embodiment of the SMU pressure management unit receptacle.
- the receptacle inlet is 301.
- the receptacle side inlet seal is 302.
- the receptacle side outlet seal is 303.
- the receptacle outlet is 304.
- the cartridge guide slot is 305.
- An electro-mechanical cartridge lock is 306.
- a cartridge locking sensor is 307.
- An electro-mechanical actuator is 308.
- FIG. 4 is an illustrative example of an embodiment of the SMU pressure management unit cartridge.
- a cartridge inlet seal is 401.
- a cartridge inlet filter is 402.
- a cartridge outlet Alter is 403.
- a cartridge outlet seal is 404.
- a cartridge locking pin is 405.
- a cartridge pressure reduction valve is 406.
- a cartridge gear is 407.
- the SMU 103 has four operating modes: installation mode, calibration mode, monitoring and active management mode, and cartridge replacement mode.
- the first step in SMU 103 installation is to manually shut off the main liquid source shut-off valve 101.
- control device 211 is powered on and enters installation mode.
- the downstream pressure set point range may then be input into the control device 211.
- the upstream shut-off valve 202, the downstream shut-off valves 209, and the drain, purge, and flush valve 208 are closed by the control device 211.
- the pressure regulating cartridge 206 is then inserted into the pressure regulating cartridge receptacle 205 by aligning the cartridge locking pin 405 and the receptacle guide slot 305, and pushing down and rotating until the cartridge locking pin 405 snaps into the cartridge lock 306.
- the sensor 307 indicates to the control device 211 that the cartridge 206 is inserted correctly.
- control device 211 determines that the cartridge 206 is inserted correctly into the receptacle 205, the control device 211 will engage the cartridge lock 306.
- the cartridge gear 407 mates with the electro-mechanical actuator 308.
- the control device 211 may control the cartridge pressure reduction valve 406 downstream pressure by moving the electromechanical actuator 308.
- the cartridge 206 initial downstream pressure will be set by the electro-mechanical actuator 308 based on pre-calibrated values.
- the main liquid source shut-off valve 101 may now be manually opened.
- the upstream electro-mechanical shut-off valve 202 and the downstream electro-mechanical shut-off valve 209 are opened by the control device 211, pressurizing the SMU 103.
- the control device 211 will control the speed of the opening and closing of the upstream electro- mechanical shut-off valve 202 and of the downstream electro-mechanical shut-off valve 209 so as not to produce pressure waves which may damage downstream fixtures and appliances.
- the SMU 103 then enters calibration mode.
- the control device 211 will calibrate under static pressure conditions by adjusting the electro-mechanical actuator 308 until the cartridge 206 downstream pressure is within the set point range.
- a downstream liquid fixture is manually opened.
- the control device 211 will then calibrate under dynamic pressure conditions by adjusting the electro-mechanical actuator 308 until the cartridge 206 downstream pressure is within the set point range.
- the calibrated setting for electro-mechanical actuator 308 corresponding to the desired downstream pressure set point may be stored by the control device 211, and the electro-mechanical actuator 308 may return to that set point when the pressure management cartridge 206 is replaced for maintenance.
- the control device 211 then enters monitoring and active management mode.
- the SMU 103 may dynamically adjust the downstream pressure based on changes in the upstream pressure using the electromechanical actuator 308 to maintain downstream pressure within the set point range.
- control device 211 may open the purge valve 208 momentarily to relieve the pressure.
- control device 211 may adjust for dynamic pressure losses by increasing the pressure management cartridge 206 downstream pressure.
- control device 211 may perform self-cleaning operations at set time intervals by cycling the flow back and forth across the pressure management cartridge 206 through the use of the upstream electromechanical shut-off valve 202, the downstream electro-mechanical shut-off valve 209, and the drain, purge, and flush valve 208. [0098] The control device 211 may determine if the pressure management cartridge 206 performance is degrading but functional, and may indicate that cartridge 206 replacement is recommended.
- the control device 211 may determine if the pressure management cartridge 206 has degraded beyond safe operation and must be replaced. In this case, the control device 211 may close the upstream electro-mechanical valve 202 and the downstream electro-mechanical valve 209. The control device 211 then enters cartridge replacement mode.
- control device 211 may open the drain valve 208 to drain the SMU 103.
- the system is no longer pressurized and the cartridge lock 306 may be electro-mechanically unlocked by the control device 211.
- the pressure reducing cartridge 206 may then be removed by first rotating then lifting the cartridge 206 out of the receptacle 205.
- the replacement pressure regulating cartridge 206 is then inserted into the pressure regulating cartridge receptacle 205 by aligning the cartridge locking pin 405 and the receptacle guide slot 305, and pushing down and rotating until the cartridge locking pin 405 snaps into the cartridge lock 306.
- the sensor 307 indicates to the control device 211 that the cartridge 206 is inserted correctly.
- control device 211 determines that the cartridge 206 is inserted correctly into the receptacle 205, the control device 211 will engage the cartridge lock 306.
- the electro-mechanical actuator 308 may now return the pressure management cartridge 206 downstream pressure to the previous set point.
- the upstream electromechanical shut-off valve 202 and the downstream electro-mechanical shut-off valve 209 are opened by the control device 211, pressurizing the SMU 103.
- the control device 211 will control the speed of the opening and closing of the upstream electro-mechanical shut-off valve 202 and of the downstream electro-mechanical shut-off valve 209 so as not to produce pressure waves which may damage downstream fixtures and appliances.
- the control device 211 again enters monitoring and active management mode. [00106] In the event of power loss, the upstream electro-mechanical shut-off valve 202 and the downstream electro-mechanical shut-off valve 209 remain open, and the drain, purge, and flush valve 208 remains closed, and the SMU 103 performs as a passive reducer.
- the SMU 103 described herein by way of the exemplary embodiments may provide important benefits and advantages overcoming the many drawbacks of passive reducers.
- a passive reducer may not maintain a safe downstream pressure under normal operating conditions, which may lead to damage and potential failure of the internal plumbing system, fixtures, and appliances, and consequential leaks.
- the SMU 103 may prevent damage to the internal plumbing system, fixtures, and appliances, and may extend the useful life thereof, thus preventing leaks and the concomitant property damage, by actively monitoring and adjusting said downstream pressure within a safe operating band during normal flow conditions.
- a passive reducer may not adjust for increased downstream pressure above safe operating limits under no-flow conditions, which may lead to damage and potential failure of the internal plumbing system, fixtures, and appliances, and consequential leaks.
- the SMU 103 may reduce unsafe downstream pressure build-up under no-flow conditions by monitoring for and releasing any accumulated excess pressure above safe operating limits.
- a passive reducer may not adjust for dynamic pressure losses under flow conditions.
- the SMU 103 may compensate for dynamic pressure losses by monitoring for dynamic pressure losses and adjusting the downstream pressure upward to within the established set point range.
- a passive reducer may be subject to fouling and require an unrealistic level and frequency of maintenance to ensure proper operating conditions.
- the SMU 103 may perform self-cleaning maintenance to prevent fouling of the pressure management cartridge 206 and other components to both ensure proper operation and to reduce the frequency of required maintenance.
- a passive reducer's operating performance may degrade without notice.
- the SMU 103 may monitor operating performance and in the event performance is determined to have degraded but remains functional then proactively indicate that pressure management cartridge 206 replacement is recommended.
- a passive reducer may fail without notice, which may lead to damage and potential failure of the internal plumbing system, fixtures, and appliances, and consequential leaks.
- the SMU 103 may monitor and determine when the pressure management cartridge 206 has degraded beyond safe operation to require replacement, and may shut off the liquid flow to prevent damage to and extend the life of downstream components, and prevent the occurrence of leaks.
- a passive reducer may require expensive maintenance and/or replacement to maintain safe operating conditions.
- the SMU 103 may reduce the cost to maintain safe operating conditions.
- the pressure management cartridge 206 provides inexpensive, plug- and-play maintenance, and may not require the services of a licensed plumbing professional reducing the cost of both maintenance parts and labor.
- a passive reducer may introduce operating performance risk into the plumbing system during the required disassembly, cleaning and/or replacing internal components, and reassembly maintenance process.
- a passive reducer's internal components may need to be cleaned carefully to ensure that dirt, sand, grease, or other contaminants do not compromise the ability of the passive reducer to operate properly.
- a passive reducer may have numerous internal components that may need to be dissembled and reassembled and thus be prone to incorrect installation.
- the SMU 103 may avoid introducing potential contaminants, incorrect assembly during maintenance, and incorrect downstream pressure setting.
- the SMU 103 maintenance may utilize a plug- and-play standard replacement cartridge and upon self- verification of correct insertion, may self-adjust to previously established safe operating pressure set points.
- a passive reducer may also introduce risk to the plumbing system in the event replacement is opted instead of performing required periodic maintenance. If the same model passive reducer is not available, the replacement may have different dimensions, and may require the services of a licensed plumbing professional for modifications to the plumbing system. Upon completion of the replacement process the downstream pressure settings must be manually set and may be subject to error. Because the pressure management cartridge 206 provides inexpensive, plug-and-play maintenance, the economic incentives for replacement of the installed SMU 103 may be removed in their totality.
- the SMU 103 may minimize liquid release during maintenance. As part of the maintenance process, the SMU 103 may shut off upstream and downstream valves to avoid draining the downstream plumbing system and may release only the small volume of liquid contained within the SMU 103.
- draining the liquid line downstream of the reducer may release scale and particulates into the plumbing system which may foul the newly-cleaned or newly-replaced passive reducer.
- the SMU 103 may avoid releasing scale and particulates.
- the SMU 103 may shut off upstream and downstream valves to avoid draining the downstream plumbing system and associated release of potentially fouling particulates.
- the SMU 103 maintenance process may reduce the potential damage to downstream components resulting from pressure waves by controlling the slow opening and closing of the upstream electro-mechanical shut-off valve 202 and of the downstream electro-mechanical shut-off valve 209.
- a passive reducer may require permitting and inspection when maintenance or replacement is needed.
- the SMU 103 may reduce the cost of permitting and inspections.
- the pressure management cartridge 206 provides inexpensive, plug-and-play maintenance, and may not require may not require any permit and inspection.
- the SMU 103 described herein may provide important benefits and advantages overcoming the many drawbacks of passive reducers.
- the exemplary embodiments of the methods described herein utilizes water as the liquid source to illustrate the uniqueness and advantages of the method for the purpose of stopping water leaks and minimizing water damage in residential and commercial sites where most of the plumbing is internal and not readily accessible, the scope of the methods, together with its uniqueness and advantages, applies to any aqueous source stream (e.g., oil, fuel) and is not limited to residential or commercial sites.
- aqueous source stream e.g., oil, fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Pipeline Systems (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
L'invention concerne un appareil de régulation de fluide comprenant une surveillance en temps réel et une gestion active d'une pression et d'un écoulement en amont, et en aval, incluant une maintenance d'auto-nettoyage du type prêt à l'emploi.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/476,097 US20190352888A1 (en) | 2017-01-14 | 2018-01-12 | Smart monitoring unit apparatus for real-time monitoring and active management of upstream and downstream pressure and flow, incorporating self-cleaning and plug-and-play maintenance |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762446414P | 2017-01-14 | 2017-01-14 | |
US62/446,414 | 2017-01-14 |
Publications (1)
Publication Number | Publication Date |
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WO2018132775A1 true WO2018132775A1 (fr) | 2018-07-19 |
Family
ID=62839518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2018/013672 WO2018132775A1 (fr) | 2017-01-14 | 2018-01-12 | Appareil d'unité de surveillance intelligente assurant une pression et un flux en amont et en aval |
Country Status (2)
Country | Link |
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US (1) | US20190352888A1 (fr) |
WO (1) | WO2018132775A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202018005791U1 (de) * | 2018-12-13 | 2020-03-19 | Gebr. Kemper Gmbh + Co. Kg | Spülvorrichtung |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5441070A (en) * | 1993-11-10 | 1995-08-15 | Thompson; Gary E. | Fluid management system |
US20040217041A1 (en) * | 2002-09-16 | 2004-11-04 | Baarman David W. | Automatic shut-off for fluid treatment system |
US6880567B2 (en) * | 2001-11-01 | 2005-04-19 | Shell Oil Company | Over-pressure protection system |
US20110178644A1 (en) * | 2008-09-30 | 2011-07-21 | Picton Holdings Limited | Water management system |
US20140083514A1 (en) * | 2012-09-25 | 2014-03-27 | Mks Instruments, Inc. | Method and Apparatus for Self Verification of Pressured Based Mass Flow Controllers |
US8749393B1 (en) * | 2011-02-14 | 2014-06-10 | Control Air Conditioning Corporation | Water leak detection and shut-off method and apparatus using differential flow rate sensors |
US20140182692A1 (en) * | 2011-05-10 | 2014-07-03 | Fujikin Incorporated | Pressure type flow control system with flow monitoring |
US20150277446A1 (en) * | 2014-04-01 | 2015-10-01 | Honeywell International Inc. | Controlling flow in a fluid distribution system |
-
2018
- 2018-01-12 US US16/476,097 patent/US20190352888A1/en not_active Abandoned
- 2018-01-12 WO PCT/US2018/013672 patent/WO2018132775A1/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5441070A (en) * | 1993-11-10 | 1995-08-15 | Thompson; Gary E. | Fluid management system |
US6880567B2 (en) * | 2001-11-01 | 2005-04-19 | Shell Oil Company | Over-pressure protection system |
US20040217041A1 (en) * | 2002-09-16 | 2004-11-04 | Baarman David W. | Automatic shut-off for fluid treatment system |
US20110178644A1 (en) * | 2008-09-30 | 2011-07-21 | Picton Holdings Limited | Water management system |
US8749393B1 (en) * | 2011-02-14 | 2014-06-10 | Control Air Conditioning Corporation | Water leak detection and shut-off method and apparatus using differential flow rate sensors |
US20140182692A1 (en) * | 2011-05-10 | 2014-07-03 | Fujikin Incorporated | Pressure type flow control system with flow monitoring |
US20140083514A1 (en) * | 2012-09-25 | 2014-03-27 | Mks Instruments, Inc. | Method and Apparatus for Self Verification of Pressured Based Mass Flow Controllers |
US20150277446A1 (en) * | 2014-04-01 | 2015-10-01 | Honeywell International Inc. | Controlling flow in a fluid distribution system |
Also Published As
Publication number | Publication date |
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US20190352888A1 (en) | 2019-11-21 |
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