CN106679214A - Multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment - Google Patents
Multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment Download PDFInfo
- Publication number
- CN106679214A CN106679214A CN201610950648.4A CN201610950648A CN106679214A CN 106679214 A CN106679214 A CN 106679214A CN 201610950648 A CN201610950648 A CN 201610950648A CN 106679214 A CN106679214 A CN 106679214A
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- China
- Prior art keywords
- cycle system
- temperature zone
- evaporimeter
- cooling cycle
- heat exchanger
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- 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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Classifications
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- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment. The multi-temperature-zone refrigerating cycle system comprises a compressor and a condenser connected with the compressor. The multi-temperature-zone refrigerating cycle system further comprises a first evaporator, a second evaporator, a gas-liquid separator, a first heat regenerator and a heat exchanger. A first capillary tube and a first heat regeneration tube in heat exchange with the first capillary tube are arranged in the first heat regenerator. An outlet of the condenser is connected with an inlet of the gas-liquid separator. An air outlet of the gas-liquid separator is connected with a first heat exchange channel of the heat exchanger. The first heat exchange channel is connected with an inlet of the second evaporator through a second capillary tube. An outlet of the second evaporator is connected with an inlet of the compressor. A liquid outlet of the gas-liquid separator is connected with the inlet of the second evaporator through the first capillary tube. The outlet of the second evaporator is connected with a second heat exchange channel of the heat exchanger. The second heat exchange channel is connected with the inlet of the compressor through the first heat regeneration tube. The energy utilization rate and refrigerating performance of the multi-temperature-zone refrigerating cycle system are improved, and the refrigerating temperature range is widened for improving the universality.
Description
Technical field
The present invention relates to refrigeration plant, more particularly to a kind of multi-temperature zone cooling cycle system and multi-temperature zone refrigeration plant.
Background technology
At present, refrigeration plant（Refrigerator, refrigerator etc.）In being 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 to need the environment for being stored at -55 DEG C or so
In, just can guarantee that the deliciousness of its meat.In prior art, the refrigeration plant with 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 loaded down with trivial details, uses in user
Easily occurs the problem that certain temperature refrigeration difference is not even freezed in journey；Importantly, can not realize between different warm areas big
The refrigeration of the temperature difference, cryogenic temperature is interval less.How a kind of energy utilization rate height, cryogenic temperature interval big, highly versatile are designed
Multi-temperature zone refrigeration plant be the technical problem to be solved.
The content of the invention
The technical problem to be solved is：A kind of multi-temperature zone cooling cycle system is provided and multi-temperature zone refrigeration sets
It is standby, realize improving multi-temperature zone cooling cycle system energy utilization rate height and refrigeration performance, expand cryogenic temperature interval logical to improve
The property used.
The present invention provide technical scheme be, a kind of multi-temperature zone cooling cycle system, including the compressor for linking together
And condenser, it is characterised in that also including the first evaporimeter, the second evaporimeter, gas-liquid separator, the first regenerator and heat exchange
Device；First capillary and the first product heat cal rod of mutual heat exchange, the outlet of the condenser are provided with first regenerator
It is connected with the import of the gas-liquid separator；First heat exchanger channels of the gas outlet of the gas-liquid separator and the heat exchanger connect
Connect, first heat exchanger channels are connected by the second capillary with the import of second evaporimeter, second evaporimeter
The import of the outlet connection compressor；The liquid outlet of the gas-liquid separator is steamed by first capillary with described second
The import connection of device is sent out, the outlet of second evaporimeter is connected with the second heat exchanger channels of the heat exchanger, and described second changes
The passage of heat is connected by first product heat cal rod with the import of the compressor.
The present invention also provides a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, also freezes including above-mentioned multi-temperature zone
Loop, the evaporimeter in the multi-temperature zone cooling cycle system is arranged in the corresponding refrigeration compartment.
Multi-temperature zone cooling cycle system and multi-temperature zone refrigeration plant that the present invention is provided, by by gaseous state in gas-liquid separator
It is delivered to respectively in different evaporimeters with the cold-producing medium of liquid, gaseous refrigerant will be transported to the second evaporimeter through heat exchanger
In carry out the refrigeration of profound hypothermia, and liquid refrigerant is entered into the first evaporimeter after capillary-compensated and carries out low hypothermia
Refrigeration, and in order to effectively widen temperature range, the cold-producing medium exported from the first evaporimeter is by heat exchange and enters into first
Cold-producing medium in evaporimeter carries out heat exchange, so that the cryogenic temperature of the first evaporimeter is lower, realizes what multi-temperature zone was freezed
Effect, and complicated control program need not be adopted, and heat exchanger can effectively improve efficiency, reducing energy consumption, realize improving
Multi-temperature zone cooling cycle system energy utilization rate height and refrigeration performance, expand cryogenic temperature interval to improve versatility.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are these
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of multi-temperature zone cooling cycle system embodiment of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the present embodiment multi-temperature zone cooling cycle system, including the compressor 1 and condenser that link together
2, also including the first evaporimeter 4, the second evaporimeter 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 evaporimeter 5, the outlet of second evaporimeter 5
Connect the import of the compressor 1；The liquid outlet of the gas-liquid separator 3 is steamed by first capillary 71 with described second
The import connection of device 5 is sent out, the outlet of second evaporimeter 5 is connected with the second heat exchanger channels of the heat exchanger 6, described second
Heat exchanger channels are connected by first product heat cal rod 72 with the import of the compressor 1.
Specifically, the present embodiment multi-temperature zone cooling cycle system cold-producing medium forms high temperature, high pressure through the compression of compressor 1
Superheated refrigerant gas, refrigerant gas are condensed into condenser 2, using the dew of high low boiling point refrigerant in cold-producing medium
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 cold-producing medium, the cold-producing medium is separated into gas-liquid separator 3.Liquid phase refrigerant rich in higher boiling cold-producing medium is from gas-liquid point
Liquid outlet from device 3 is exported, and after throttling via the first capillary 71, is entered into after the first evaporimeter 4 is exchanged heat and is formed two-phase
Cold-producing medium enters and saturation refrigerant gas is further exchanged heat into heat exchanger 6, and subsequent refrigerant gas are entered in the first regenerator 7
The first product heat cal rod 72, the first product heat cal rod 72 is exchanged heat with the first capillary 71, also, refrigerant gas are from the first product heat cal rod
7 are transmitted back to compressor 1；Vapor phase refrigerant is introduced into after the cold of the cold-producing medium that heat exchanger 6 absorbs the output of the first evaporimeter 4 and is formed
Liquid phase refrigerant, liquid phase refrigerant is entered after the second evaporimeter 5 exchanges heat after the throttling of the second capillary 81 and forms gas refrigeration
Compressor 1 is flowed back in agent.Preferably, the present embodiment multi-temperature zone cooling cycle system also includes the second regenerator 8, second backheat
The product heat cal rod 82 of second capillary 81 and second of mutual heat exchange is provided with device 8, second evaporimeter 5 is by described
Second product heat cal rod 82 is connected with the import of the compressor 1.Specifically, the cryogen of gas is formed after the second evaporimeter 5 exchanges heat
In second product heat cal rod 82 of the second regenerator 8, after the second product heat cal rod 82 and the second capillary 81 are exchanged heat, can more added with
The temperature that the second evaporimeter 5 can freeze is reduced, the refrigeration of more low temperature is obtained, and more effectively utilizes energy consumption, carried
High energy efficiency.Specifically, two evaporimeters are configured with corresponding regenerator, and regenerator can recycle the cold of cold-producing medium in return-air
The energy utilization rate of raising system, also without complicated control program, it is ensured that product is also ensure that while product cost
Performance.
In actual use, the first evaporimeter 4 is used for refrigeration or the freezing of routine, and for the second evaporimeter 5 is removed
Can be used in outside conventional freezing, cryogenic refrigeration can also be realized, coordinate different cold-producing mediums to realize large span temperature
The refrigeration of scope, the present embodiment multi-temperature zone cooling cycle system adopts mix refrigerant, the mix refrigerant to include 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 evaporimeter 4 and the second evaporimeter 5 can adopt many height
Evaporimeter is constituted, and can be being applied in combination by the way of serial or parallel connection between sub- evaporimeter.In addition, relevant heat exchanger 6 its
Performance entity can be using plate type heat exchanger or casing type heat exchanging.
The present invention also provides a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, also freezes including above-mentioned multi-temperature zone
The circulatory system, the evaporimeter in the multi-temperature zone cooling cycle system is arranged in the corresponding refrigeration compartment.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of multi-temperature zone cooling cycle system, including the compressor and condenser that link together, it is characterised in that also include
First evaporimeter, the second evaporimeter, gas-liquid separator, the first regenerator and heat exchanger；Phase is provided with first regenerator
First capillary and the first product heat cal rod of mutual heat exchange, the outlet of the condenser is connected with the import of the gas-liquid separator；
The first heat exchanger channels connection of the gas outlet of the gas-liquid separator and the heat exchanger, first heat exchanger channels pass through second
Capillary is connected with the import of second evaporimeter, the import of the outlet connection compressor of second evaporimeter；Institute
The liquid outlet for stating gas-liquid separator is connected by first capillary with the import of second evaporimeter, second evaporation
The outlet of device is connected with the second heat exchanger channels of the heat exchanger, and second heat exchanger channels are by first product heat cal rod and institute
State the import connection of compressor.
2. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that described also including the second regenerator
Second capillary and the second product heat cal rod of mutual heat exchange are provided with second regenerator, second evaporimeter passes through institute
State the second product heat cal rod to be connected with the import of the compressor.
3. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that first evaporimeter includes multiple
The multiple first sub- evaporimeters being arranged in parallel.
4. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that first evaporimeter includes multiple
The multiple first sub- evaporimeters being arranged in series.
5. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that second evaporimeter includes multiple
The multiple second sub- evaporimeters being arranged in parallel.
6. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that second evaporimeter includes multiple
The multiple second sub- evaporimeters being arranged in series.
7. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that the multi-temperature zone cooling cycle system
Using mix refrigerant, the mix refrigerant includes various cold-producing mediums.
8. multi-temperature zone cooling cycle system according to claim 7, it is characterised in that the mix refrigerant is R600a
With the mixture of R290；Or, the mix refrigerant is the mixture of R600 and R290；Or, the mix refrigerant is
The mixture of R600a and R600；Or, the mix refrigerant is the mixture of R600a and R170；Or, the mixing system
Cryogen is the mixture of R290 and R170；Or, the mix refrigerant is the mixture of R600a, R290 and R170.
9. multi-temperature zone cooling cycle system according to claim 1, it is characterised in that the heat exchanger is plate-type heat-exchange
Device or casing type heat exchanging.
10. a kind of multi-temperature zone refrigeration plant, including multiple refrigeration compartments, it is characterised in that also include as claim 1-9 is arbitrary
Described multi-temperature zone cooling cycle system, the evaporimeter in the multi-temperature zone cooling cycle system is arranged on the corresponding refrigeration
In compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950648.4A CN106679214A (en) | 2016-10-27 | 2016-10-27 | Multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950648.4A CN106679214A (en) | 2016-10-27 | 2016-10-27 | Multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679214A true CN106679214A (en) | 2017-05-17 |
Family
ID=58840463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610950648.4A Pending CN106679214A (en) | 2016-10-27 | 2016-10-27 | Multi-temperature-zone refrigerating cycle system and multi-temperature-zone refrigerating equipment |
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| Country | Link |
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| CN (1) | CN106679214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361634A (en) * | 2020-12-14 | 2021-02-12 | 珠海格力电器股份有限公司 | Two-stage compression refrigeration system, refrigeration control method and refrigeration equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789367A (en) * | 2005-12-09 | 2006-06-21 | 西安交通大学 | Multi-element mixed working substance adapted to double temperature preparation of single-unit vapor compression type refrigerator |
| CN2901197Y (en) * | 2006-01-13 | 2007-05-16 | 博西华电器（江苏）有限公司 | Multiple temperature zones electric refrigerator |
| EP2532992A1 (en) * | 2011-06-09 | 2012-12-12 | Mitsubishi Heavy Industries | Multi-type air conditioner and control method therefor |
| US20150316313A1 (en) * | 2014-05-02 | 2015-11-05 | Thermo King Corporation | Method and system for controlling operation of evaporator fans in a transport refrigeration system |
-
2016
- 2016-10-27 CN CN201610950648.4A patent/CN106679214A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789367A (en) * | 2005-12-09 | 2006-06-21 | 西安交通大学 | Multi-element mixed working substance adapted to double temperature preparation of single-unit vapor compression type refrigerator |
| CN2901197Y (en) * | 2006-01-13 | 2007-05-16 | 博西华电器（江苏）有限公司 | Multiple temperature zones electric refrigerator |
| EP2532992A1 (en) * | 2011-06-09 | 2012-12-12 | Mitsubishi Heavy Industries | Multi-type air conditioner and control method therefor |
| US20150316313A1 (en) * | 2014-05-02 | 2015-11-05 | Thermo King Corporation | Method and system for controlling operation of evaporator fans in a transport refrigeration system |
Non-Patent Citations (1)
| Title |
|---|
| 张新德等: "《变频/定频电冰箱金牌维修实训》", 31 March 2014, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361634A (en) * | 2020-12-14 | 2021-02-12 | 珠海格力电器股份有限公司 | Two-stage compression refrigeration system, refrigeration control method and refrigeration equipment |
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Application publication date: 20170517 |
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