CN207230992U - A kind of cryogenic refrigeration systems - Google Patents
A kind of cryogenic refrigeration systems Download PDFInfo
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- CN207230992U CN207230992U CN201721248518.2U CN201721248518U CN207230992U CN 207230992 U CN207230992 U CN 207230992U CN 201721248518 U CN201721248518 U CN 201721248518U CN 207230992 U CN207230992 U CN 207230992U
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- temperature side
- refrigeration system
- high temperature
- low temperature
- phase change
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 62
- 238000003860 storage Methods 0.000 claims abstract description 36
- 230000008859 change Effects 0.000 claims abstract description 25
- 238000001704 evaporation Methods 0.000 claims abstract description 10
- 230000008020 evaporation Effects 0.000 claims abstract description 9
- 239000012782 phase change material Substances 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 abstract description 8
- 230000008014 freezing Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000013611 frozen food Nutrition 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000002309 gasification Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009455 aseptic packaging Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a kind of cryogenic refrigeration systems, belong to freezing and refrigeration and quick freezing technical field.The cryogenic freezing includes high temperature side refrigeration system, low temperature side refrigeration system and phase change cold-storage module.The high temperature side refrigeration system includes high temperature side compressor, outdoor side condenser and the first expansion valve.The low temperature side refrigeration system is included by low temperature side compressor, freezer side evaporator and the second expansion valve.The phase change cold-storage module includes high temperature side evaporation coil, low temperature side condenser coil and multiple phase change cold-storage units.The low temperature side refrigeration system of the utility model is mutually independent with high temperature side refrigeration system, and system starts and operation control is simpler, safe and reliable, and cooling system performance is high, operation energy consumption is small, operating cost is low.
Description
Technical field
A kind of cryogenic refrigeration systems are the utility model is related to, belong to freezing and refrigeration and quick freezing technical field.
Background technology
With society and expanding economy, people advocate the safe, hygienic of food, nutrition, conveniently.It is higher and higher to adapt to
Material requisite, various new food protect storage techniques and come into being, such as quick-frozen, irradiate, aseptic packaging.Refrigeration Technique is so far
A kind of effective preservation method that effect is preferable untill the present, the holding time is longer.Frozen food is divided into cooling food and frozen food,
The easy preservation of frozen food, is widely used in the production, transport and storage of the perishable items such as meat, fowl, aquatic products, breast, egg, vegetables and fruit
Hide.The Food Freezing and Cold Storage huge market demand, occupies an important position in developed country, is quickly grown in developing country.
Chain of Food is one set up in twentieth century with the progress of science and technology, the development of Refrigeration Technique
Systematic engineering of business, is built upon on the basis of food refrigeration technology, using Refrigeration Technique as means, makes perishable items from the producer
To all links between consumer, i.e., from raw material picking, fishing, purchase etc., production, processing, transport, storage and sale circulation
Etc. in whole process, remain suitable cryogenic conditions, to ensure the quality of food, reduce the loss of food.
In Chain of Food, food, need to be placed in -20 DEG C of even lower rings by the precooling of food and snap frozen link
At a temperature of border, which is usually to be realized by low-temperature freezer.Currently used low-temperature freezer is mainly adopted
With multi-stage compression refrigeration system or folding type cooling system, the condensation temperature of its high temperature side is higher than environment temperature, low temperature side temperature
Less than the design temperature of freezer, system high temperature is surveyed is up to 60-80 DEG C with the temperature difference of low temperature side, this causes current low-temperature freezer
The coefficient of performance of refrigerating of system is typically in the range of 1.2 or so, far below the Cool-water Machine for Industry group of conventional single-stage（Its refrigeration performance system
Number can be more than 5）Or domestic air conditioner（Its coefficient of performance of refrigerating can be more than 3）.
Utility model content
For existing cryogenic refrigeration systems device at present coefficient of performance of refrigerating it is low, system energy consumption is big, operation is complicated
The defects of, the utility model is based on phase change cold-storage technology, it is proposed that a kind of cryogenic refrigeration systems, improve cryogenic refrigeration systems dress
The refrigeration performance put, reduces the energy consumption and operating cost of system.
The utility model adopts the following technical scheme that to solve its technical problem：
A kind of cryogenic refrigeration systems, are characterized in that, including：High temperature side refrigeration system, low temperature side refrigeration system and phase transformation
Cold-storage module, high temperature side refrigeration system are connected with phase change cold-storage module, and phase change cold-storage module is connected with low temperature side refrigeration system.
The high temperature side refrigeration system includes the connected high temperature side compressor of order, outdoor side condenser and the first expansion
Valve.
The low temperature side refrigeration system includes low temperature side compressor, freezer side evaporator and the second expansion being linked in sequence
Valve.
The phase change cold-storage module includes high temperature side evaporation coil, low temperature side condenser coil and phase change cold-storage unit, wherein
High temperature side evaporation coil passes through phase change cold-storage unit, and low temperature side condenser coil passes through phase change cold-storage unit.
Phase-change material is filled with inside the phase change cold-storage unit, the transition temperature range of phase-change material is-20-10 DEG C.
The utility model has the beneficial effect that：
1）Compared with folding type cooling system, the low temperature side refrigeration system or high temperature side refrigeration system of the utility model device
Evaporating temperature and condensation temperature the temperature difference it is relatively small, the pressure ratio of compressor reduces, and the coefficient of performance of refrigeration system can improve
More than 30%.
2）Compared with multi-stage compression refrigeration system, low temperature side refrigeration system and high temperature side the refrigeration system of the utility model device
System is single-stage compression refrigeration system, and low temperature side refrigeration system is mutually independent with high temperature side refrigeration system, and system starts
It is simpler, reliable with operation control.
3）The low temperature side refrigeration system and high temperature side refrigeration system of the utility model device need not be run at the same time, can be independent
Separately operation, high temperature side refrigeration system use the operational mode of night paddy electricity cold-storage, and system annual operating cost can reduce by 20%.
Brief description of the drawings
Fig. 1 is the operational process schematic diagram of low-temperature freezer, wherein：1st, high temperature side compressor, 2, outdoor side condenser,
3rd, the first expansion valve, 4, high temperature side evaporation coil, 5, phase change cold-storage module, 6, low temperature side compressor, 7, low temperature side condenser coil,
8th, the second expansion valve, 9, freezer side evaporator.
Embodiment
The utility model is created below in conjunction with the accompanying drawings and is described in more detail.
A kind of cryogenic refrigeration systems of the utility model are as shown in Figure 1, including high temperature side refrigeration system, low temperature side refrigeration system
System and phase change cold-storage module 5.
The high temperature side refrigeration system includes the connected high temperature side compressor 1 of order, outdoor side condenser 2 and first expands
Valve 3；High temperature side compressor 1, outdoor side condenser 2, the first expansion valve 3 and high temperature side evaporation coil 4 by joining end to end successively,
Form a closed circuit.
The low temperature side refrigeration system includes low temperature side compressor 6, the expansion of freezer side evaporator 9 and second being linked in sequence
Valve 8；Low temperature side compressor 6,7 and second expansion valve 8 of low temperature side condenser coil and freezer side evaporator 9 pass through head and the tail phase successively
Even, a closed circuit is formed.
The phase change cold-storage module 5 includes high temperature side evaporation coil 4, low temperature side condenser coil 7 and multiple phase change cold-storage lists
Member.
The phase change cold-storage unit is sealed structure, the phase-change material of inside filling certain mass, the phase of phase-change material
Temperature is advisable for-20-10 DEG C.
This cryogenic freezing system is broadly divided into night paddy electricity cold-storage and freezing operation both of which when running.
Night paddy electricity cold-storage pattern：Paddy electricity period in night, high temperature side refrigeration system start operation, and refrigerant is from high temperature side
The outlet of compressor 1 enters outdoor side condenser 2, flows into the first expansion valve 3 after cooled condensation, the refrigerant after decrease temperature and pressure into
Enter high temperature side evaporation coil 4, from 5 endothermic gasification of phase change cold-storage module, return to high temperature side compressor 1, complete circulation.The operation mould
Under formula, the cold that high temperature side refrigeration system produces is stored in phase change cold-storage module 5.Non- night paddy electricity period, high temperature side system
Cooling system is out of service.
Freeze operational mode：When having product to need fast precooling or keep in cold storage, low temperature side refrigeration system starts operation, system
Cryogen enters low temperature side condenser coil 7 from the outlet of low temperature side compressor 6, to 5 heat release of phase change cold-storage module, is flowed after cooled condensation
Enter the second expansion valve 8, the refrigerant after decrease temperature and pressure enters freezer side evaporator 9, and the endothermic gasification from freezer environment, returns low
Warm side compression machine 6, completes circulation.Under the operational mode, low temperature side refrigeration system provides freezer cold, and remains low for freezer
Warm environment.When no product needs fast precooling or keeps in cold storage, low temperature side refrigeration system is out of service.
Claims (5)
1. a kind of cryogenic refrigeration systems, are characterized in that, including：High temperature side refrigeration system, low temperature side refrigeration system and phase transformation store
Chill block（5）, high temperature side refrigeration system and phase change cold-storage module（5）Connection, phase change cold-storage module（5）With low temperature side refrigeration system
Connection.
2. a kind of cryogenic refrigeration systems according to claim 1, are characterized in that, the high temperature side refrigeration system includes order
Connected high temperature side compressor（1）, outdoor side condenser（2）With the first expansion valve（3）.
3. a kind of cryogenic refrigeration systems according to claim 1, are characterized in that, the low temperature side refrigeration system includes order
The low temperature side compressor of connection（6）, freezer side evaporator（9）With the second expansion valve（8）.
4. a kind of cryogenic refrigeration systems according to claim 1, are characterized in that, the phase change cold-storage module（5）Including height
Warm side evaporation coil（4）, low temperature side condenser coil（7）With phase change cold-storage unit, wherein high temperature side evaporation coil（4）Through phase transformation
Cold-storage unit, low temperature side condenser coil（7）Through phase change cold-storage unit.
5. a kind of cryogenic refrigeration systems according to claim 4, are characterized in that, it is filled with inside the phase change cold-storage unit
Phase-change material, the transition temperature range of phase-change material is-20-10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248518.2U CN207230992U (en) | 2017-09-27 | 2017-09-27 | A kind of cryogenic refrigeration systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248518.2U CN207230992U (en) | 2017-09-27 | 2017-09-27 | A kind of cryogenic refrigeration systems |
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| Publication Number | Publication Date |
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| CN207230992U true CN207230992U (en) | 2018-04-13 |
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| CN201721248518.2U Active CN207230992U (en) | 2017-09-27 | 2017-09-27 | A kind of cryogenic refrigeration systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606811A (en) * | 2017-09-27 | 2018-01-19 | 南京师范大学 | A kind of cryogenic refrigeration systems and its operation method |
-
2017
- 2017-09-27 CN CN201721248518.2U patent/CN207230992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606811A (en) * | 2017-09-27 | 2018-01-19 | 南京师范大学 | A kind of cryogenic refrigeration systems and its operation method |
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