CN109682103A - Refrigeration system of the direct condensation by contact of single stage compress with injector - Google Patents
Refrigeration system of the direct condensation by contact of single stage compress with injector Download PDFInfo
- Publication number
- CN109682103A CN109682103A CN201910077939.0A CN201910077939A CN109682103A CN 109682103 A CN109682103 A CN 109682103A CN 201910077939 A CN201910077939 A CN 201910077939A CN 109682103 A CN109682103 A CN 109682103A
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- Prior art keywords
- valve
- shut
- entrance
- outlet
- connect
- Prior art date
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 35
- 238000009833 condensation Methods 0.000 title claims abstract description 13
- 230000005494 condensation Effects 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011555 saturated liquid Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
本发明公开了一种单级压缩直接接触冷凝带喷射器的制冷系统，包括辅助冷凝器、第一截止阀、直接接触换热器、第二截止阀、制冷压缩机、气液分离器、膨胀阀、蒸发器、第三截止阀、第四截止阀、喷射器、第五截止阀、第六截止阀、回热过冷器、单向阀。本发明充分利用喷射器的喷射引射作用，代替膨胀阀，降低膨胀损失，利用直接接触换热器，减少传热温差，提高传热效率，降低制冷压缩机的排气压力，降低压力比，减少功耗，提高制冷压缩机的性能。
The invention discloses a single-stage compression direct contact condensation refrigeration system with an ejector, comprising an auxiliary condenser, a first cut-off valve, a direct-contact heat exchanger, a second cut-off valve, a refrigeration compressor, a gas-liquid separator, an expansion Valve, evaporator, third globe valve, fourth globe valve, ejector, fifth globe valve, sixth globe valve, regenerative subcooler, one-way valve. The invention makes full use of the injection ejection function of the ejector, replaces the expansion valve, reduces the expansion loss, uses the direct contact heat exchanger, reduces the heat transfer temperature difference, improves the heat transfer efficiency, reduces the exhaust pressure of the refrigeration compressor, and reduces the pressure ratio. Reduce power consumption and improve refrigeration compressor performance.
Description
Technical field
The present invention relates to a kind of refrigeration system of the direct condensation by contact of single stage compress with injector.
Background technique
In conventional refrigerant system refrigeration compressor be discharged gas, in dividing wall type heat exchanger with cooling medium heat exchange,
The thermal resistance of condensing heat-exchange is big, and heat transfer property is low, and heat transfer temperature difference is big, and the pressure ratio of refrigeration compressor is high.
Summary of the invention
The purpose of the present invention is being directed to technological deficiency existing in the prior art, provide a kind of single stage compress directly contact it is cold
The solidifying refrigeration system with injector, it is energy saving to improve the efficiency of refrigeration system.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of refrigeration system of the direct condensation by contact of single stage compress with injector, including auxiliary condenser, the first shut-off valve,
Direct contact heat transfer device, the second shut-off valve, refrigeration compressor, gas-liquid separator, expansion valve, evaporator, third shut-off valve, the 4th
Shut-off valve, injector, the 5th shut-off valve, the 6th shut-off valve, backheat subcooler, check valve；The outlet of the refrigeration compressor point
It at two-way, is connected all the way through the entrance of the first shut-off valve and auxiliary condenser, another way is changed through the second shut-off valve with directly contacting
The gas access of hot device connects, and the saturated liquid outlet of direct contact heat transfer device and the saturated liquid entrance of backheat subcooler connect
It connects, the outlet of the subcooled liquid of backheat subcooler is connect with the entrance of the 5th shut-off valve, the outlet of auxiliary condenser and check valve
Entrance connection, the outlet of the 6th shut-off valve are connect with the subcooled liquid entrance of direct contact heat transfer device, the 5th cut-off valve outlet, list
To the outlet of valve and the entrance of the 6th shut-off valve it is in parallel after connect with the entrance of injector, the diffuser of injector, which exports, is divided into two
Road is connect with the entrance of third shut-off valve all the way, and another way connects through the fluid-mixing entrance of the 4th shut-off valve and backheat subcooler
It connects, the fluid-mixing entrance after the fluid-mixing outlet of backheat subcooler is in parallel with the outlet of third shut-off valve with gas-liquid separator
Connection, the gas vent of gas-liquid separator and the entrance of refrigeration compressor connect, and the liquid outlet of gas-liquid separator passes through expansion
It is connect after valve with the liquid inlet of evaporator.
Compared with prior art, the beneficial effects of the present invention are:
1. refrigeration system of the direct condensation by contact of single stage compress of the invention with injector, makes full use of the injection of injector
Ejector action reduces expansion-loss instead of expansion valve.
2. refrigeration system of the direct condensation by contact of single stage compress of the invention with injector, using direct contact heat transfer device,
Heat transfer temperature difference is reduced, heat transfer efficiency is improved, reduces the pressure at expulsion of refrigeration compressor, reduces pressure ratio, reduces power consumption, improves system
The performance of cold compressor.
3. the performance of refrigeration system of the direct condensation by contact of single stage compress of the invention with injector, refrigeration system improves,
It is energy saving, protect environment.
Detailed description of the invention
Fig. 1 show the schematic diagram of refrigeration system of the direct condensation by contact of single stage compress of the invention with injector.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, refrigeration system of the direct condensation by contact of single stage compress with injector of the present invention, including auxiliary condenser
1, the first shut-off valve 2, direct contact heat transfer device 3, the second shut-off valve 4, refrigeration compressor 5, gas-liquid separator 6, expansion valve 7, steaming
Send out device 8, third shut-off valve 9, the 4th shut-off valve 10, injector 11, the 5th shut-off valve 12, the 6th shut-off valve 13, backheat subcooler
14, check valve 15；
The outlet of the refrigeration compressor 5 is divided into two-way, and the entrance all the way through the first shut-off valve 2 and auxiliary condenser 1 connects
It connects, another way is connect through the second shut-off valve 4 with the gas access of direct contact heat transfer device 3, the saturated solution of direct contact heat transfer device 3
Body outlet is connect with the saturated liquid entrance of backheat subcooler 14, subcooled liquid outlet and the 5th shut-off valve of backheat subcooler 14
12 entrance connection, the outlet of auxiliary condenser 1 connect with the entrance of check valve 15, the outlet of the 6th shut-off valve 13 with directly connect
The subcooled liquid entrance connection of heat exchanger 3 is touched, the 5th shut-off valve 12 outlet, the outlet of check valve 15, the 6th shut-off valve 13 enter
It is mouthful in parallel, connect with the entrance of injector 11, the diffuser of injector 11, which exports, is divided into two-way, all the way with third shut-off valve 9
Entrance connection, another way are connect through the 4th shut-off valve 10 with the fluid-mixing entrance of backheat subcooler 14, backheat subcooler 14
Fluid-mixing is connect after exporting the outlet parallel connection with third shut-off valve 9 with the fluid-mixing entrance of gas-liquid separator 6, gas-liquid separation
The gas vent of device 6 is connect with the entrance of refrigeration compressor 5, the liquid outlet of gas-liquid separator 6 by after expansion valve 7 with evaporation
The liquid inlet of device 8 connects.
It should be noted that (air-flow is directly contacted and is changed for the auxiliary condenser 1, direct contact heat transfer device 3 in the present invention
Hot device), gas-liquid separator 6, evaporator 8, injector 11, backheat subcooler (also referred to as Subcooled heat recovery device) 14 be all made of existing system
The common device of cooling system.
In refrigeration system operation, start refrigeration compressor 5, open the first shut-off valve 2 and third shut-off valve 9, closes the
Two shut-off valves 4, the 4th shut-off valve 10, the 5th shut-off valve 12 and the 6th shut-off valve 13, the gas that refrigeration compressor 5 is discharged enter auxiliary
Condenser 1 is helped, the nozzle expansion for entering injector 11 through check valve 15 with the liquid of cooling medium heat exchange condensation is depressured, injection
Gas in evaporator 8, the diffuser outlet fluid of injector 11 is through third shut-off valve 9, into gas-liquid separator 6, separation
Gas enters refrigeration compressor 5, enters evaporator 8 after the expanded valve 7 of liquid, cold heat of vaporization of liquid absorption, for cold sky
Between cold source is provided.
After system run all right, the first shut-off valve 2 and third shut-off valve 9 are closed, opens the cut-off of the second shut-off valve the 4, the 4th
Valve 10, the 5th shut-off valve 12 and the 6th shut-off valve 13, the gas that refrigeration compressor 5 is discharged enters through the second shut-off valve 4 directly to be connect
Heat exchanger 3 is touched, enters backheat subcooler 14, the supercooled liquid that backheat subcooler 14 flows out with the saturated liquid of supercooled liquid condensation by contact
Body is divided into two-way, enters direct contact heat transfer device 3 through the 6th shut-off valve 13 all the way, and another way enters through the 5th shut-off valve 12 sprays
The nozzle expansion of device 11 is depressured, the gas in injection evaporator 8, and the diffuser outlet fluid of injector 11 is through the 4th shut-off valve 10
Into backheat subcooler 14, fluid enters gas-liquid separator 6 after heat exchange, and isolated gas enters refrigeration compressor 5, liquid warp
Enter evaporator 8, cold heat of vaporization of liquid absorption, to provide cold source with cold space after expansion valve 7.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of refrigeration system of the direct condensation by contact of single stage compress with injector, including it is auxiliary condenser, the first shut-off valve, straight
Connect contact heat-exchanging device, the second shut-off valve, refrigeration compressor, gas-liquid separator, expansion valve, evaporator, third shut-off valve, the 4th section
Only valve, injector, the 5th shut-off valve, the 6th shut-off valve, backheat subcooler, check valve；The outlet of the refrigeration compressor is divided into
Two-way is connected through the entrance of the first shut-off valve and auxiliary condenser all the way, and another way is through the second shut-off valve and direct contact heat transfer
The gas access of device connects, and the saturated liquid outlet of direct contact heat transfer device is connect with the saturated liquid entrance of backheat subcooler,
The subcooled liquid outlet of backheat subcooler is connect with the entrance of the 5th shut-off valve, the outlet of auxiliary condenser and the entrance of check valve
Connection, the outlet of the 6th shut-off valve are connect with the subcooled liquid entrance of direct contact heat transfer device, the 5th cut-off valve outlet, check valve
Outlet and the 6th shut-off valve entrance it is in parallel after connect with the entrance of injector, the diffuser of injector, which exports, is divided into two-way,
It being connect all the way with the entrance of third shut-off valve, another way is connect through the 4th shut-off valve with the fluid-mixing entrance of backheat subcooler,
Connect after the fluid-mixing outlet of backheat subcooler is in parallel with the outlet of third shut-off valve with the fluid-mixing entrance of gas-liquid separator
It connects, the gas vent of gas-liquid separator and the entrance of refrigeration compressor connect, and the liquid outlet of gas-liquid separator passes through expansion valve
It is connect afterwards with the liquid inlet of evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077939.0A CN109682103A (en) | 2019-01-28 | 2019-01-28 | Refrigeration system of the direct condensation by contact of single stage compress with injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077939.0A CN109682103A (en) | 2019-01-28 | 2019-01-28 | Refrigeration system of the direct condensation by contact of single stage compress with injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109682103A true CN109682103A (en) | 2019-04-26 |
Family
ID=66194728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910077939.0A Pending CN109682103A (en) | 2019-01-28 | 2019-01-28 | Refrigeration system of the direct condensation by contact of single stage compress with injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109682103A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220221168A1 (en) * | 2019-09-30 | 2022-07-14 | Daikin Industries, Ltd. | Air conditioner |
| CN115164431A (en) * | 2022-07-14 | 2022-10-11 | 珠海格力电器股份有限公司 | Injection refrigerating system |
| TWI851069B (en) * | 2022-03-08 | 2024-08-01 | 美商貝特烴能源科技解決方案公司 | System for use in single-stage cooling cycle and single stage cooling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657846A (en) * | 2005-04-11 | 2005-08-24 | 北京工业大学 | A heat pump (refrigeration) system with ejector and receiver subcooler |
| CN101419000A (en) * | 2008-11-14 | 2009-04-29 | 广东美的电器股份有限公司 | Heat pump air conditioner |
| CN106642836A (en) * | 2017-02-17 | 2017-05-10 | 天津商业大学 | Direct contact condensation refrigeration system with saturated liquid supercooled completely |
| JP2017156083A (en) * | 2017-06-09 | 2017-09-07 | 三菱重工業株式会社 | Refrigerant system with direct contact heat exchanger |
| CN209672631U (en) * | 2019-01-28 | 2019-11-22 | 天津商业大学 | Single stage compression direct contact condensing refrigeration system with ejector |
-
2019
- 2019-01-28 CN CN201910077939.0A patent/CN109682103A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657846A (en) * | 2005-04-11 | 2005-08-24 | 北京工业大学 | A heat pump (refrigeration) system with ejector and receiver subcooler |
| CN101419000A (en) * | 2008-11-14 | 2009-04-29 | 广东美的电器股份有限公司 | Heat pump air conditioner |
| CN106642836A (en) * | 2017-02-17 | 2017-05-10 | 天津商业大学 | Direct contact condensation refrigeration system with saturated liquid supercooled completely |
| JP2017156083A (en) * | 2017-06-09 | 2017-09-07 | 三菱重工業株式会社 | Refrigerant system with direct contact heat exchanger |
| CN209672631U (en) * | 2019-01-28 | 2019-11-22 | 天津商业大学 | Single stage compression direct contact condensing refrigeration system with ejector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220221168A1 (en) * | 2019-09-30 | 2022-07-14 | Daikin Industries, Ltd. | Air conditioner |
| TWI851069B (en) * | 2022-03-08 | 2024-08-01 | 美商貝特烴能源科技解決方案公司 | System for use in single-stage cooling cycle and single stage cooling method |
| CN115164431A (en) * | 2022-07-14 | 2022-10-11 | 珠海格力电器股份有限公司 | Injection refrigerating system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190426 |