CN209672631U - 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 PDF

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Publication number
CN209672631U
CN209672631U CN201920139698.3U CN201920139698U CN209672631U CN 209672631 U CN209672631 U CN 209672631U CN 201920139698 U CN201920139698 U CN 201920139698U CN 209672631 U CN209672631 U CN 209672631U
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China
Prior art keywords
valve
shut
entrance
outlet
injector
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Expired - Fee Related
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CN201920139698.3U
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Chinese (zh)
Inventor
宁静红
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Tianjin University of Commerce
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Tianjin University of Commerce
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Priority to CN201920139698.3U priority Critical patent/CN209672631U/en
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Publication of CN209672631U publication Critical patent/CN209672631U/en
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Abstract

The utility model discloses 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 utility model makes full use of the injection ejector action of injector, instead of expansion valve, reduces expansion-loss, utilizes direct contact heat transfer device, heat transfer temperature difference is reduced, heat transfer efficiency is improved, reduces the pressure at expulsion of refrigeration compressor, pressure ratio is reduced, power consumption is reduced, improves the performance of refrigeration compressor.

Description

Refrigeration system of the direct condensation by contact of single stage compress with injector
Technical field
The utility model 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.
Utility model content
The purpose of this utility model is provided a kind of single stage compress and directly connects for technological deficiency existing in the prior art The refrigeration system of condensing zone injector is touched, it is energy saving to improve the efficiency of refrigeration system.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
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 utility model has the beneficial effects that
1. refrigeration system of the direct condensation by contact of the single stage compress of the utility model with injector, makes full use of injector Ejector action is sprayed, instead of expansion valve, reduces expansion-loss.
2. refrigeration system of the direct condensation by contact of the single stage compress of the utility model with injector, utilizes direct contact heat transfer Device reduces heat transfer temperature difference, improves heat transfer efficiency, reduces the pressure at expulsion of refrigeration compressor, reduces pressure ratio, reduces power consumption, mentions The performance of high refrigeration compressor.
3. refrigeration system of the direct condensation by contact of the single stage compress of the utility model with injector, the performance of refrigeration system mention Height, it is energy saving, protect environment.
Detailed description of the invention
Fig. 1 show the schematic diagram of the refrigeration system of the direct condensation by contact of single stage compress with injector of the utility model.
Specific embodiment
The utility model 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 the utility model single stage compress with injector, including auxiliary are cold 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, evaporator 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 mistake Cooler 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 the auxiliary condenser 1, (air-flow directly connects direct contact heat transfer device 3 in the utility model Touching heat exchanger), gas-liquid separator 6, evaporator 8, injector 11, backheat subcooler (also referred to as Subcooled heat recovery device) 14 be all made of it is existing There is the common device of refrigeration 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 the preferred embodiment of the utility model, it is noted that for the general of the art For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into retouching.

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.
CN201920139698.3U 2019-01-28 2019-01-28 Refrigeration system of the direct condensation by contact of single stage compress with injector Expired - Fee Related CN209672631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920139698.3U CN209672631U (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
CN201920139698.3U CN209672631U (en) 2019-01-28 2019-01-28 Refrigeration system of the direct condensation by contact of single stage compress with injector

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682103A (en) * 2019-01-28 2019-04-26 天津商业大学 Refrigeration system of the direct condensation by contact of single stage compress with injector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682103A (en) * 2019-01-28 2019-04-26 天津商业大学 Refrigeration system of the direct condensation by contact of single stage compress with injector

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191122

Termination date: 20220128

CF01 Termination of patent right due to non-payment of annual fee