CN207501478U - A kind of injecting type auto-cascading refrigeration system - Google Patents
A kind of injecting type auto-cascading refrigeration system Download PDFInfo
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- CN207501478U CN207501478U CN201721434153.2U CN201721434153U CN207501478U CN 207501478 U CN207501478 U CN 207501478U CN 201721434153 U CN201721434153 U CN 201721434153U CN 207501478 U CN207501478 U CN 207501478U
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- condenser
- connect
- injector
- outlet
- evaporator
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Abstract
The utility model discloses a kind of injecting type auto-cascading refrigeration systems.The utility model compressor, first injector, first condenser inlet connects, the liquid outlet of first condenser is connect after first throttle valve with the liquid entrance of the second condenser, the liquid outlet of second condenser is connect with the first injector ejector pipe, the gaseous state outlet of first condenser is connect with the second injector entrance, the second injector outlet is connect with the second condenser gaseous state import, the second condenser liquid outlet divides the first branch and the second branch, the first branch is connect after second throttle with the first evaporator inlet, first evaporator outlet is connect with the second injector ejecting port, the second branch is connect after third throttle valve with the second evaporator inlet, second evaporator outlet is connect with compressor air suction mouth.The system is capable of providing the low temperature cold source of two kinds of different temperatures, suitable for multi-functional freezer.
Description
Technical field
The utility model is related to a kind of injecting type auto-cascading refrigeration systems, belong to field of low-temperature refrigeration.
Background technology
With attention of the country to food service industry, the freezer of various scales continuously emerges, and exists not for different food
, there is the refrigeration system of different temperatures in same processing and storage temperature, need -60 DEG C for the processing of some food, even
It is lower, this requirement is not achieved for common compression refrigerating system, is needed using twin-stage or cascade system, therefore for more than one
Function freezer needs a kind of refrigeration system that can solve different temperatures, to solve the problems, such as that this proposes the utility model.
Utility model content
The purpose of this utility model is to be directed to technological deficiency in the prior art, and provides a kind of injecting type Auto-cascade cycle
Refrigeration system.
Technical solution is used by realize the purpose of this utility model：
A kind of injecting type auto-cascading refrigeration system, which is characterized in that including compressor, the first injector, the first condenser,
Second injector, the second condenser, the first evaporator, the second evaporator, first throttle valve, second throttle, third throttle valve；
The exhaust outlet of compressor is connect with the first injector entrance, and the first injector outlet enters with the first condenser
There is liquid outlet and gaseous state to export for mouth connection, first condenser, and the liquid outlet of the first condenser is through first throttle valve
It being connect afterwards with the liquid entrance of the second condenser, the liquid outlet of the second condenser is connect with the first injector ejector pipe, and first
The gaseous state outlet of condenser is connect with the second injector entrance, and the second injector outlet connects with the second condenser gaseous state import
It connects, the second condenser liquid outlet divides the first branch and the second branch, and the first branch is steamed after second throttle with first
The connection of device entrance is sent out, first evaporator outlet is connect with the second injector ejecting port, and the second branch is after third throttle valve
It is connect with the second evaporator inlet, second evaporator outlet is connect with compressor air suction mouth.
The system is using R23 and R22 mix refrigerants.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model combines the low-temperature receiver that can generate two kinds of different temperatures with injector using a compressor.
2nd, the utility model can solve the problems, such as special library (such as -60 DEG C of library temperature) and the freezer of other library temperature.
3rd, the compressor in the utility model only compresses a kind of refrigerant, has compared with traditional Auto-cascade cycle system
There is the advantages of simple in structure.
Description of the drawings
Fig. 1 show a kind of injecting type auto-cascading refrigeration system schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of injecting type auto-cascading refrigeration system, including compressor 14, the first injector 1, the spray of the first condenser 3, second
Emitter 6, the second condenser 9, the first evaporator 10, the second evaporator 13, first throttle valve 5, second throttle 11, third throttling
Valve 12；
14 exhaust outlet of compressor is connect with 1 entrance 16 of the first injector, and first injector 1 exports and first is cold
3 entrance of condenser connects, and there is first condenser 3 liquid outlet and gaseous state to export, and the liquid outlet of the first condenser 3 is through the
Liquid entrance after one throttle valve 5 with the second condenser 9 is connect, 1 injection of liquid outlet and the first injector of the second condenser 9
Pipe 15 connects, and the gaseous state outlet of the first condenser 3 is connect with 6 entrance of the second injector, the outlet of the second injector 6 and second
9 gaseous state import of condenser connects, and 9 liquid outlet of the second condenser divides the first branch and the second branch, and the first branch is through the
It is connect after two throttle valves 11 with 10 entrance of the first evaporator, the outlet of the first evaporator 10 connects with 6 ejecting port of the second injector
It connects, the second branch is connect after third throttle valve 12 with 13 entrance of the second evaporator, the outlet of the second evaporator 13 and compression
14 air entry of machine connects.
Cycle is as follows during the system work：
The compressed high temperature and pressure R23 gaseous refrigerants of compressor 14 described in the system enter the first injector entrance
16, it is quickly sprayed through 1 nozzle of the first injector, negative pressure, R22 gaseous state of the injection in the second condenser is formed in nozzle adapter
Refrigerant is cooled down and is condensed into the first condenser 3 after the supercharging of the first injector diffuser 2 after the mixing of two refrigerants,
Enter the second condenser 9 after R22 refrigerant liquefactions after 5 reducing pressure by regulating flow of first throttle valve, after evaporation of absorbing heat in the second condenser 9
R22 refrigerants enter the first injector 1 through the first injector ejector pipe 15, gaseous state R23 after cooling enters the second injector
Entrance 4 is quickly sprayed through 6 nozzle of the second injector, and negative pressure, R23 of the injection in the first evaporator are formed in nozzle adapter
Gaseous refrigerant enters the second condenser 9 after mixing after the supercharging of 6 diffuser of the second injector, and R23 gaseous refrigerants are throttling
It is condensed after R22 refrigerant endothermic gasifications afterwards, partial condensation liquid enters the first evaporator after the throttling of second throttle 10
10, the low-temperature receiver of lower temperature is provided, another part condensate liquid enters the second evaporator 13 after 12 reducing pressure by regulating flow of third throttle valve,
The deeper low-temperature receiver of temperature (such as -60 DEG C) is provided, the gaseous state R23 refrigerants after evaporation enter compressor 13 and compressed, so week
And renew the refrigeration system that cycle provides two kinds of different depth low-temperature receivers.
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, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (2)
1. a kind of injecting type auto-cascading refrigeration system, which is characterized in that including compressor, the first injector, the first condenser,
Two injectors, the second condenser, the first evaporator, the second evaporator, first throttle valve, second throttle, third throttle valve；
The exhaust outlet of compressor is connect with the first injector entrance, and the first injector outlet connects with the first condenser inlet
Connect, there is first condenser liquid outlet and gaseous state to export, the liquid outlet of the first condenser after first throttle valve with
The liquid entrance connection of second condenser, the liquid outlet of the second condenser are connect with the first injector ejector pipe, the first condensation
The gaseous state outlet of device is connect with the second injector entrance, and the second injector outlet is connect with the second condenser gaseous state import,
The second condenser liquid outlet divides the first branch and the second branch, the first branch after second throttle with the first evaporator
Entrance connects, and first evaporator outlet connect with the second injector ejecting port, and the second branch is after third throttle valve with the
Two evaporator inlets connect, and second evaporator outlet is connect with compressor air suction mouth.
2. a kind of injecting type auto-cascading refrigeration system according to claim 1, it is characterized in that, the auto-cascading refrigeration system
Using R23 and R22 mix refrigerants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434153.2U CN207501478U (en) | 2017-11-01 | 2017-11-01 | A kind of injecting type auto-cascading refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434153.2U CN207501478U (en) | 2017-11-01 | 2017-11-01 | A kind of injecting type auto-cascading refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207501478U true CN207501478U (en) | 2018-06-15 |
Family
ID=62502068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721434153.2U Expired - Fee Related CN207501478U (en) | 2017-11-01 | 2017-11-01 | A kind of injecting type auto-cascading refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207501478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815561A (en) * | 2019-10-31 | 2021-05-18 | 广东美的白色家电技术创新中心有限公司 | Refrigeration device |
-
2017
- 2017-11-01 CN CN201721434153.2U patent/CN207501478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815561A (en) * | 2019-10-31 | 2021-05-18 | 广东美的白色家电技术创新中心有限公司 | Refrigeration device |
| CN112815561B (en) * | 2019-10-31 | 2022-03-25 | 广东美的白色家电技术创新中心有限公司 | Refrigeration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20181101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |