CN102914102B - Screw type brine unit - Google Patents
Screw type brine unit Download PDFInfo
- Publication number
- CN102914102B CN102914102B CN201110223523.9A CN201110223523A CN102914102B CN 102914102 B CN102914102 B CN 102914102B CN 201110223523 A CN201110223523 A CN 201110223523A CN 102914102 B CN102914102 B CN 102914102B
- Authority
- CN
- China
- Prior art keywords
- oil
- compressor
- screw rod
- rod type
- type saline
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical group O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title abstract 3
- 238000001035 drying Methods 0.000 claims abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 29
- 239000011780 sodium chloride Substances 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010836 blood and blood product Substances 0.000 description 1
- 229940125691 blood product Drugs 0.000 description 1
- 235000020965 cold beverage Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a screw type brine unit, which comprises a compressor, and an oil cooler, a condenser, a drying filter, an economizer, an evaporator and an oil separator which are connected with the compressor, wherein an oil outlet pipe of the oil separator comprises a first branch and a second branch, oil in the first branch is not cooled by the oil cooler, and oil in the second branch is cooled by the oil cooler, then is connected with the first branch and is connected with the compressor. The oil temperature and the flow of the screw type brine unit entering the compressor are controllable, so that the oil temperature entering the compressor is stable and sufficient in oil supply is ensured; the two compressors are connected in parallel to realize the regulation of 12.5-100% of cold in a large range, and the outlet water temperature range is-10-50 ℃.
Description
Technical field
The present invention relates to a kind of industrial refrigeration field, refer in particular to a kind of screw rod type saline unit.
Background technology
Screw rod type saline unit is applicable to the freezing or similar applications of industry and commerce: comprise and provide low temperature chilled water in the production process of the industries such as fine chemistry industry, plating, shoemaking, injection moulding, ice making, cold drink, health products, blood product, pharmacy.The oil of the oil eliminator of the screw rod type saline unit of prior art directly enters compressor oil-supplying, and the oil temperature supplying of compressor is high and fuel feeding unstable, affects the efficiency of compressor.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of screw rod type saline unit, and it can reduce the oil temperature supplying of compressor, improves reliability and the efficiency of compressor.
The present invention is achieved in that
A kind of screw rod type saline unit, comprises the compressor connected in turn, oil eliminator, condenser, throttle part, evaporimeter; Also comprise oil cooler, oil temperature control valve; The flowline of described oil eliminator comprises the first branch road and the second branch road, the oil flowing through described second branch road is mixed by described oil temperature control valve with the oil flowing through described first branch road after described oil cooler cooling, and the described oil temperature control valve other end is connected with the oil-feed port of described compressor.
The oil of described second branch road mixes with the oil of described first branch road after described oil cooler cooling, then enters described compressor by oil-feed port, reduces the temperature of the oil entering described compressor, guarantees the temperature stabilization entering described compressor.
Preferably, described screw rod type saline unit also comprises device for drying and filtering, and described device for drying and filtering is connected between described condenser and described throttle part.
Preferably, described screw rod type saline unit also comprises economizer, and described economizer is connected between described condenser and described throttle part.
Preferably, described screw rod type saline unit includes two compressors, and two described compressor parallels connect.By the guiding valve of compressor and the output cold opening, stop regulating compressor described in separate unit controlling two described compressors respectively.
Preferably, described economizer is provided with at least one escape pipe, at least two drain pipes, and wherein at least one described drain pipe is connected with the drain pipe without throttling by after throttle part throttling, and described escape pipe is connected with the gas supplementing opening of described compressor.On the one hand, add the degree of supercooling of evaporimeter feed flow, when making the gaseous coolant through evaporator get back to the air entry of described compressor, pressure ratio increases, and is namely equivalent to carry out a two-stage compression, provides screw rod type saline unit cold.
Preferably, the center height of described economizer lower than the center height of described condenser, thus facilitates refrigerant and flows to described economizer from described condenser, makes the flowing of refrigerant in this process can not be subject to the obstruction of gravity.
Preferably, described oil cooler is placed in the below of the oil-feed port of described compressor, and the highest point of described oil cooler cylindrical shell is not higher than the oil level of described oil eliminator, thus facilitates oil and flow to oil cooler from oil eliminator, to make in this process the flowing of oil can not be subject to the obstruction of gravity.
Preferably, compressor valve control system is connected with between described condenser and described oil eliminator, make pressure reduction between described compressor suction duct and blast pipe higher than supply pressure, do not need to use oil pump to provide the power of screw rod type saline unit oil circulation, save cost.
Screw rod type saline unit of the present invention compared with prior art, has following beneficial effect:
Screw rod type saline unit of the present invention enter the oil temperature of described compressor and flow controlled, ensure that the oil temperature entering described compressor is stable and fuel feeding is sufficient; Be connected in parallel the adjustment realizing 12.5%-100% cold on a large scale by two compressors, realize outlet water temperature range and be-10 DEG C-50 DEG C.
Accompanying drawing explanation
Fig. 1 is the flow chart of screw rod type saline unit of the present invention;
Fig. 2 is the front view of screw rod type saline unit of the present invention;
Fig. 3 is the top view of screw rod type saline unit of the present invention;
Fig. 4 is the left view of screw rod type saline unit of the present invention;
Fig. 5 is the structural representation of oil cooler.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
As shown in Figure 1, screw rod type saline unit of the present invention, it comprises compressor 1A, 1B, and the oil cooler 2, condenser 3, device for drying and filtering 4, economizer 5, evaporimeter 6 and the oil eliminator 7 that are connected with described compressor 1A, 1B.
Wherein, described compressor 1A, 1B are connected in parallel.By described compressor 1A, 1B guiding valve and control the output cold opening, stop regulating described compressor 1A or 1B of two described compressor 1A, 1B respectively.When screw rod type saline unit cold load is less, opens a compressor 1A run by control system, realize the operation that cold regulates from 12.5% ~ 50%, if refrigeration requirement is comparatively large, screw rod type saline unit control system detects refrigerating medium (CaCl automatically
2solution) Inlet and outlet water temperature comparing with design temperature, automatically open two compressor 1A, 1B, realize 50% ~ 100% High cooling power regulated and run.Wherein, control described compressor by guiding valve, or controlled the opening of described compressor 1A, 1B by control system, stopped belonging to prior art, the present invention does not repeat them here.
As shown in Figure 5, wherein, direction shown in arrow is the flow direction of oil.The flowline of described oil eliminator 7 comprises the first branch road 8 and the second branch road 9, the oil of described first branch road 8 cools without described oil cooler 2, and the oil of described second branch road 9 cools through described oil cooler 2, described first branch road 8 is connected by oil temperature control valve 10 with the oil inlet pipe 11 of described second branch road 9 and described compressor, finally makes oil enter described compressor 1A, 1B respectively by the oil-feed port 12 of described compressor 1A and the oil-feed port 13 of described compressor 1B.Described oil temperature control valve 10 is mechanical type triple valve, that control valve 10 regulates high temperature oil by described first branch road 8 and the combined amount by the low-temperature oil of described second branch road 9 by described temperature, the temperature of the oil entering described compressor 1A, 1B is made to remain near setting value, such as temperature remains about 49 DEG C, deviation is ± 2 DEG C, achieve the accurate control of the oil temperature supplying of compressor 1A, 1B, ensure the reliability of compressor 1A, 1B.In the present invention, described oil eliminator 7, with oil storage function, ensure that enough fuel deliveries of the oil-feed port 12 of described compressor 1A and the oil-feed port 13 of described compressor 1B.
Continue as shown in Figure 1, described economizer 5 is provided with 3 drain pipes and 2 escape pipes, wherein the drain pipe 15 of two described drain pipes 14 with another without throttling after throttle part 16 throttling is connected, and other two escape pipes 20 are connected with the gas supplementing opening of described compressor 1A, 1B.After the throttling of described throttle part 16, on the one hand, add the degree of supercooling of described evaporimeter 6 feed flow, the gaseous coolant through described evaporimeter 6 is made to get back to the air entry of described compressor 1A, 1B, pressure ratio increases, namely be equivalent to carry out a two-stage compression, described screw rod type saline unit cold is provided.
Preferably, compressor valve control system is connected with between described condenser 3 and described oil eliminator 7, make pressure reduction between the air intake duct of described compressor 1A, 1B and blast pipe higher than supply pressure, and do not need to use oil pump to provide the power of screw rod type saline unit oil circulation, save cost.
As shown in Figures 2 to 4, the center height of described economizer 5 lower than the center height of described condenser 3, thus facilitates refrigerant from described condenser 3 to the flow of described economizer 5.Described oil cooler 2 is placed in the below of the oil-feed port of described compressor 1A, 1B, and the highest point of the cylindrical shell of described oil cooler 2 is not higher than the oil level of described oil eliminator 7.Control section and the start-up circuit system of screw rod type saline unit of the present invention are provided separately, switch board 17(comprises touch-screen) be placed on described oil eliminator 7, be easy to operation, start that cabinet 18 is independent is placed on base, connect by cable the signal transmission that described switch board 17 and described startup cabinet 18 realize described switch board 17 and described startup cabinet 18.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Not violating any replacement and improvement that the basis of the present invention's design is done, all belong to protection scope of the present invention.
Claims (6)
1. a screw rod type saline unit, is characterized in that,
Comprise the compressor connected in turn, oil eliminator (7), condenser (3), throttle part (16), evaporimeter (6); Also comprise oil cooler (2), oil temperature control valve (10); The flowline of described oil eliminator (7) comprises the first branch road (8) and the second branch road (9), the oil flowing through described second branch road (9) is mixed by described oil temperature control valve (10) with the oil flowing through described first branch road (8) after described oil cooler (2) cooling, and described oil temperature control valve (10) other end is connected with the oil-feed port of described compressor; Also comprise economizer (5), described economizer (5) is connected between described condenser (3) and described throttle part, described economizer (5) is provided with at least one escape pipe, at least two drain pipes, described escape pipe is connected with described compressor, at least one described drain pipe is connected with the drain pipe without throttling by after throttle part (16) throttling, and described escape pipe is connected with the gas supplementing opening of described compressor.
2. screw rod type saline unit as claimed in claim 1, it is characterized in that, also comprise device for drying and filtering (4), described device for drying and filtering (4) is connected between described condenser (3) and described throttle part (16).
3. screw rod type saline unit as claimed in claim 1, it is characterized in that, it includes two compressors (1A, 1B), and two described compressor parallels connect.
4. screw rod type saline unit as claimed in claim 1, is characterized in that, the height of the center of described economizer (5) is lower than the height of the center of described condenser (3).
5. screw rod type saline unit as claimed in claim 1, it is characterized in that, described oil cooler (2) is placed in the below of the oil-feed port of described compressor, and the highest point of the cylindrical shell of described oil cooler (2) is not higher than the oil level of described oil eliminator (7).
6. screw rod type saline unit as claimed in claim 1, is characterized in that, be connected with compressor valve control system between described condenser (3) and described oil eliminator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223523.9A CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223523.9A CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102914102A CN102914102A (en) | 2013-02-06 |
| CN102914102B true CN102914102B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110223523.9A Active CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN102914102B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042953B (en) * | 2015-05-25 | 2017-11-07 | 珠海格力电器股份有限公司 | Air supplementing and enthalpy increasing method of economizer and air conditioning system |
| DE102017214941A1 (en) | 2017-08-25 | 2019-02-28 | Dometic Sweden Ab | Recreational vehicle, cooling device, control system and method of controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| EP3971661A1 (en) | 2020-09-18 | 2022-03-23 | Dometic Sweden AB | System and method for controlling at least one function of a vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924478A3 (en) * | 1997-12-15 | 2000-03-22 | Carrier Corporation | Refrigeration system with integrated oil cooling heat exchanger |
| JP4403193B2 (en) * | 2004-05-28 | 2010-01-20 | ヨーク・インターナショナル・コーポレーション | System and method for controlling an economizer circuit |
| CN201680645U (en) * | 2009-07-10 | 2010-12-22 | 特灵空调系统(中国)有限公司 | Return oil system of flooded screw water chiller |
| CN101893354B (en) * | 2010-07-01 | 2012-10-17 | 大连三洋压缩机有限公司 | Subcooled oil cooler and novel economizer screw machine refrigeration cycle system |
| CN201858811U (en) * | 2010-10-22 | 2011-06-08 | 武汉新世界制冷工业有限公司 | Screw type liquid cooling unit |
| CN202188704U (en) * | 2011-08-05 | 2012-04-11 | 珠海格力电器股份有限公司 | Screw type brine unit |
-
2011
- 2011-08-05 CN CN201110223523.9A patent/CN102914102B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102914102A (en) | 2013-02-06 |
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