CN206222738U - Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant - Google Patents
Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant Download PDFInfo
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- CN206222738U CN206222738U CN201621176820.7U CN201621176820U CN206222738U CN 206222738 U CN206222738 U CN 206222738U CN 201621176820 U CN201621176820 U CN 201621176820U CN 206222738 U CN206222738 U CN 206222738U
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Abstract
The utility model provides a kind of multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant.Refrigerating circuit includes the compressor and condenser that link together, also including the first evaporator, the second evaporator, gas-liquid separator, the first regenerator and heat exchanger；First capillary and the first product heat cal rod of mutual heat exchange are provided with first regenerator, the outlet of condenser is connected with the import of gas-liquid separator；The first heat exchanger channels connection of the gas outlet and heat exchanger of gas-liquid separator, first heat exchanger channels are connected by the second capillary with the import of the second evaporator, the liquid outlet of gas-liquid separator is connected by the first capillary with the import of the second evaporator, the outlet of the second evaporator is connected with the second heat exchanger channels of heat exchanger, the outlet of the second heat exchanger channels and the second evaporator connects the first product heat cal rod respectively, and the first product heat cal rod connects the import of compressor.Realize improving that multi-temperature zone refrigerating circuit energy utilization rate is high and refrigeration performance, expand cryogenic temperature interval to improve versatility.
Description
Technical field
The utility model is related to refrigeration plant, more particularly to a kind of multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant.
Background technology
At present, refrigeration plant（Refrigerator, refrigerator etc.）It is widely used in daily life.With the life of people
Running water is flat to be improved constantly, people to food and refrigeration plant the aspect such as environmental protection, energy-conservation, fresh-keeping requirement more and more higher, it is single
The refrigerating appliances such as the refrigerator of storage warm area and two storage warm areas can not slowly meet the storage requirements of people's different food products, and drinks is needed
5 ~ 20 DEG C of warm area is stored at, fruit and vegetable will be stored at the storage of the product neededs such as 0 ~ 8 DEG C of warm area, common meat, fish
- 18 DEG C are ensconced, and some Special foods need ultralow temperature storage, such as tuna needs to be stored at -55 DEG C or so of environment
In, just can guarantee that the deliciousness of its meat.In the prior art, with the refrigeration plant of multi-temperature zone refrigerating function, generally using cold
Distribution coordinates corresponding automatically controlled control strategy, of the prior art many to realize that multi-temperature zone is freezed, and in actual use
On the one hand warm area refrigeration plant widens that heat transfer temperature energy utilization rate is low, and another aspect control system is cumbersome, is used in user
Easily occurs the problem that certain temperature refrigeration difference is not freezed even in journey；Importantly, can not be realized between different warm areas big
The refrigeration of the temperature difference, cryogenic temperature is interval smaller.How to design that a kind of energy utilization rate is high, the interval big, highly versatile of cryogenic temperature
Multi-temperature zone refrigeration plant be technical problem to be solved in the utility model.
Utility model content
Technical problem to be solved in the utility model is：A kind of multi-temperature zone refrigerating circuit is provided and multi-temperature zone refrigeration sets
It is standby, realize improving the manufacturing cost of kind of refrigeration cycle system and improving refrigeration performance.
The technical scheme that the utility model is provided is, a kind of multi-temperature zone refrigerating circuit, including the compressor for linking together
And condenser, also including the first evaporator, the second evaporator, gas-liquid separator, the first regenerator and heat exchanger；Described first time
First capillary and the first product heat cal rod of mutual heat exchange, the outlet of the condenser and the gas-liquid separation are provided with hot device
The import connection of device；The first heat exchanger channels connection of the gas outlet of the gas-liquid separator and the heat exchanger, described first changes
The passage of heat is connected by the second capillary with the import of second evaporator, and the liquid outlet of the gas-liquid separator passes through institute
State the first capillary to be connected with the import of second evaporator, the outlet of second evaporator and the second of the heat exchanger
Heat exchanger channels are connected, and the outlet of second heat exchanger channels and second evaporator connects first product heat cal rod, institute respectively
State the import that the first product heat cal rod connects the compressor.
The utility model also provides a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, also including above-mentioned multi-temperature zone
Refrigerating circuit, the evaporator in the multi-temperature zone refrigerating circuit is arranged in the corresponding refrigeration compartment.
Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant that the utility model is provided, by by gaseous state in gas-liquid separator
It is delivered to respectively in different evaporators with the refrigerant of liquid, gaseous refrigerant will be transported to the second evaporator by heat exchanger
In carry out the refrigeration of profound hypothermia, and liquid refrigerant carries out low hypothermia by being entered into after capillary-compensated in the first evaporator
Refrigeration, and in order to effectively widen temperature range, the refrigerant exported from the first evaporator is by heat exchange and enters into first
Refrigerant in evaporator carries out heat exchange, so that the cryogenic temperature of the first evaporator is lower, realizes multi-temperature zone refrigeration
Effect, and need not be using complicated control program, and heat exchanger can effectively improve efficiency, reducing energy consumption, realize improving
Multi-temperature zone refrigerating circuit energy utilization rate is high and refrigeration performance, expands cryogenic temperature interval to improve versatility.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the utility model multi-temperature zone refrigerating circuit embodiment.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
As shown in figure 1, the present embodiment multi-temperature zone cooling cycle system, including the compressor 1 and condenser for linking together
2, also including the first evaporator 4, the second evaporator 5, gas-liquid separator 3, the first regenerator 7 and heat exchanger 6；First backheat
First capillary 71 and the first product heat cal rod 72 of mutual heat exchange, the outlet of the condenser 2 and the gas-liquid are provided with device 7
The import connection of separator 3；The first heat exchanger channels connection of the gas outlet of the gas-liquid separator 3 and the heat exchanger 6, it is described
First heat exchanger channels are connected by the second capillary 82 with the import of second evaporator 5；The gas-liquid separator 3 goes out liquid
Mouthful be connected with the import of second evaporator 5 by first capillary 71, the outlet of second evaporator 5 with it is described
The second heat exchanger channels connection of heat exchanger 6, the outlet of second heat exchanger channels and the second evaporator 5 passes through described first respectively
Product heat cal rod 72 is connected with the import of the compressor 1.
Specifically, the present embodiment multi-temperature zone cooling cycle system refrigerant forms high temperature, high pressure by the compression of compressor 1
Superheated refrigerant gas, refrigerant gas are condensed into condenser 2, using the dew of low boiling point refrigerant high in refrigerant
Point temperature is different, is formed after refrigerant gas condensation and is rich in higher boiling refrigerant liquid and rich in low boiling point refrigerant gas two
Phase refrigerant, the refrigerant is separated into gas-liquid separator 3.Liquid phase refrigerant rich in higher boiling refrigerant divides from gas-liquid
Liquid outlet from device 3 is exported, and after being throttled via the first capillary 71, is entered into after the first evaporator 4 is exchanged heat and is formed two-phase
Refrigerant enters in heat exchanger 6 and further exchanges heat into saturation refrigerant gas, and subsequent refrigerant gas enter in the first regenerator 7
The first product heat cal rod 72, the first product heat cal rod 72 exchanged heat with the first capillary 71；Vapor phase refrigerant is introduced into heat exchanger 6 and absorbs
Liquid phase refrigerant is formed after the cold of the refrigerant of the output of the first evaporator 4, liquid phase refrigerant throttles by the second capillary 81
Form gas refrigerant after being exchanged heat into the second evaporator 5 afterwards to be flowed into the first product heat cal rod 72, finally, in the first product heat cal rod 72
Refrigerant gas be transmitted back to compressor 1.Preferably, the present embodiment multi-temperature zone cooling cycle system also includes the second regenerator 8,
The product heat cal rod 82 of second capillary 81 and second of mutual heat exchange is provided with second regenerator 8, described second steams
The outlet and the second heat exchanger channels for sending out device 5 are connected by the second product heat cal rod 82 with the first product heat cal rod 72 respectively.Specifically, second steams
Hair device 5 forms cryogen and the second heat exchanger channels conveying of gas refrigerant after exchanging heat enters into the second of the second regenerator 8
In product heat cal rod 82, after the second product heat cal rod 82 and the second capillary 81 are exchanged heat, can more added with the institute of the second evaporator of reduction by 5
The temperature that can freeze, obtains the refrigeration of more low temperature, and more effectively utilizes energy consumption, improves efficiency.Specifically, two
Evaporator is configured with corresponding regenerator, and regenerator can recycle the using energy source of the cold raising system of refrigerant in return-air
Rate, the control program also without complexity, it is ensured that the performance of product is also ensure that while product cost.
In actual use, the first evaporator 4 is used for refrigeration or the freezing of routine, and is removed for the second evaporator 5
Can be used in outside conventional freezing, cryogenic refrigeration can also be realized, coordinate different refrigerants to realize large span temperature
The refrigeration of scope, the present embodiment multi-temperature zone cooling cycle system uses mix refrigerant, and the mix refrigerant includes various systems
Cryogen, for example：The mix refrigerant is the mixture of R600a and R290；Or, the mix refrigerant is R600 and R290
Mixture；Or, the mix refrigerant is the mixture of R600a and R600；Or, the mix refrigerant is R600a
With the mixture of R170；Or, the mix refrigerant is the mixture of R290 and R170；Or, the mix refrigerant is
The mixture of R600a, R290 and R170.Different storage warm areas, working medium can be formed by different non-public boiling mix refrigerants
To R600a/R290：It is capable of achieving -18 ~ -30 DEG C of storage warm areas and -30 ~ -40 DEG C of storage warm areas；Working medium is to R600/R290：Can be real
Existing -6 ~ -18 DEG C of storage warm areas and -30 ~ -40 DEG C of storage warm areas；Working medium is to R600/R600a：Be capable of achieving 0 ~ 9 DEG C storage warm area and-
6 ~ -12 DEG C of storage warm areas；Working medium is to R600a/R170：It is capable of achieving -18 ~ -30 DEG C of storage warm areas and -40 ~ -60 DEG C of storage warm areas；
Working medium is to R290/R170：It is capable of achieving -20 ~ -40 DEG C of storage warm areas and -40 ~ -60 DEG C is stored warm area etc..
Wherein, according to the setting of varying number warm area, the first evaporator 4 and the second evaporator 5 can use many height
Evaporator is constituted, and can be applied in combination by the way of serial or parallel connection between sub- evaporator.In addition, relevant heat exchanger 6 its
Performance entity can use plate type heat exchanger or casing type heat exchanging.
The utility model also provides a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, also including above-mentioned multi-temperature zone
Cooling cycle system, the evaporator in the multi-temperature zone cooling cycle system is arranged in the corresponding refrigeration compartment.
Finally it should be noted that：Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；
Although being described in detail to the utility model with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (10)
1. a kind of multi-temperature zone refrigerating circuit, including the compressor and condenser for linking together, it is characterised in that also including first
Evaporator, the second evaporator, gas-liquid separator, the first regenerator and heat exchanger；Mutual heat is provided with first regenerator
The first capillary and the first product heat cal rod for exchanging, the outlet of the condenser are connected with the import of the gas-liquid separator；It is described
The first heat exchanger channels connection of the gas outlet of gas-liquid separator and the heat exchanger, first heat exchanger channels pass through the second capillary
Pipe is connected with the import of second evaporator, the liquid outlet of the gas-liquid separator by first capillary with it is described
The import connection of the second evaporator, the outlet of second evaporator is connected with the second heat exchanger channels of the heat exchanger, described
The outlet of the second heat exchanger channels and second evaporator connects first product heat cal rod respectively, and first product heat cal rod connects institute
State the import of compressor.
2. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that also including the second regenerator, described second
Second capillary and the second product heat cal rod of mutual heat exchange, second heat exchanger channels and described are provided with regenerator
The outlet of two evaporators connects second product heat cal rod respectively, and second product heat cal rod is connected with first product heat cal rod.
3. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that first evaporator includes multiple in parallel
Multiple first sub- evaporators of setting.
4. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that first evaporator includes multiple series connection
Multiple first sub- evaporators of setting.
5. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that second evaporator includes multiple in parallel
Multiple second sub- evaporators of setting.
6. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that second evaporator includes multiple series connection
Multiple second sub- evaporators of setting.
7. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that the multi-temperature zone refrigerating circuit is using mixing
Refrigeration working medium, the Mix refrigerant cycle includes various refrigeration working mediums.
8. multi-temperature zone refrigerating circuit according to claim 7, it is characterised in that the Mix refrigerant cycle be R600a and
The mixture of R290；Or, the Mix refrigerant cycle is the mixture of R600 and R290；Or, the Mix refrigerant cycle
It is the mixture of R600a and R600；Or, the Mix refrigerant cycle is the mixture of R600a and R170；Or, it is described mixed
It is the mixture of R290 and R170 to close refrigeration working medium；Or, the Mix refrigerant cycle is the mixing of R600a, R290 and R170
Thing.
9. multi-temperature zone refrigerating circuit according to claim 1, it is characterised in that the heat exchanger be plate type heat exchanger or
Casing type heat exchanging.
10. a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, it is characterised in that also any including such as claim 1-9
Described multi-temperature zone refrigerating circuit, the evaporator in the multi-temperature zone refrigerating circuit is arranged in the corresponding refrigeration compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176820.7U CN206222738U (en) | 2016-10-27 | 2016-10-27 | Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176820.7U CN206222738U (en) | 2016-10-27 | 2016-10-27 | Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206222738U true CN206222738U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621176820.7U Active CN206222738U (en) | 2016-10-27 | 2016-10-27 | Multi-temperature zone refrigerating circuit and multi-temperature zone refrigeration plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440444A (en) * | 2016-10-27 | 2017-02-22 | 青岛海尔特种电冰柜有限公司 | Multiple-temperature zone refrigeration circuit and multiple-temperature zone refrigeration device |
-
2016
- 2016-10-27 CN CN201621176820.7U patent/CN206222738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440444A (en) * | 2016-10-27 | 2017-02-22 | 青岛海尔特种电冰柜有限公司 | Multiple-temperature zone refrigeration circuit and multiple-temperature zone refrigeration device |
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