CN206222782U - A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet - Google Patents
A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet Download PDFInfo
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- CN206222782U CN206222782U CN201621208789.0U CN201621208789U CN206222782U CN 206222782 U CN206222782 U CN 206222782U CN 201621208789 U CN201621208789 U CN 201621208789U CN 206222782 U CN206222782 U CN 206222782U
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Abstract
The utility model is related to modified ultra low temperature overlapping formula fast refrigerating cabinet.It includes low-temperature level refrigeration cycle system and high-temperature level refrigeration cycle system,The high-temperature level refrigeration cycle system is by high-temperature level compressor,First condensing heat-exchange passage of high-temperature level condenser,High temperature nuclear one-stage throttling device,And the second evaporation and heat-exchange passage of condenser/evaporator constitutes high-temperature level refrigerant circulation circuit successively,Low-temperature level refrigeration cycle system of the present utility model and high-temperature level refrigeration cycle system carry out heat exchange using condenser/evaporator and high-temperature level condenser,The heat that high-temperature level refrigeration cycle system is discharged is absorbed by the first evaporation and heat-exchange passage,The manufactured cold out of the second condenser of high-temperature level refrigeration cycle system cools the second condensing heat-exchange passage simultaneously,The good effect of heat exchange of low-temperature level refrigeration cycle system and high-temperature level refrigeration cycle system,So that the refrigeration of the low-temperature level evaporator of low-temperature level refrigeration cycle system is more preferable,Evaporating temperature is lower,Refrigerating speed is faster.
Description
Technical field
The utility model is related to reach in freezer technical field, more particularly to a kind of modified ultra low temperature overlapping formula fast refrigerating cabinet.
Background technology
Existing reach in freezer is mainly used in preserving food, with the lifting of living standard, storage request of the people to food
More and more higher, such as refrigerating speed are fast, the lower lamp requirement of evaporating temperature, the particularly storage of the food such as boiled dumpling, seafood, bread.It is existing
A kind of some reach in freezers environmental protection fluorine-free super low-temperature refrigerator as disclosed in China Patent No. 02135581.9 in 10 days October in 2007,
But existing reach in freezer but has the following disadvantages：One is the current domestic ultra-low temperature cold with folding type cooling system
Cabinet it is expensive, the relatively costly of original folding type cooling system, complex structure, maintenance are inconvenient, and refrigerating speed is slow.Two
It is the high and low temperature level refrigeration system one due to pure refrigerant in kind and qualitative limitation, therefore existing reach in freezer
As be all the mix refrigerant for using, its mix refrigerant be by R404A, two kinds in R508B, R134A, R170, R290 with
On the mixing of pure refrigerant constitute, the ratio of the every kind of refrigerant in mix refrigerant is difficult allotment, and is difficult to ensure that allotment
The good refrigeration effect of the refrigerant for mixing afterwards.
Utility model content
What the purpose of this utility model was overcome the shortcomings of, and above-mentioned prior art is present, and provide a kind of simple structure,
The modified ultra low temperature overlapping formula fast refrigerating cabinet that refrigerating speed is fast, good refrigeration effect, evaporating temperature are lower.
What the purpose of this utility model was realized in：
A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet, including low-temperature level refrigeration cycle system and high-temperature level refrigeration cycle system
System, the high-temperature level refrigeration cycle system includes high-temperature level compressor, high-temperature level condenser, high temperature nuclear one-stage throttling device, Yi Jileng
Solidifying evaporator, the high-temperature level condenser includes the first condensing heat-exchange passage and the first evaporation and heat-exchange passage of mutually heat exchange, institute
Stating condenser/evaporator includes the second condensing heat-exchange passage and the second evaporation and heat-exchange passage of mutually heat exchange, the high-temperature level compression
Machine, the first condensing heat-exchange passage, high temperature nuclear one-stage throttling device and the second evaporation and heat-exchange passage are sequentially connected composition high-temperature level refrigerant
Circulation loop, the low-temperature level refrigeration cycle system include low-temperature level compressor, oil eliminator, low temperature nuclear one-stage throttling device and
Low-temperature level evaporator, the low-temperature level compressor, oil eliminator, the second condensing heat-exchange passage, low temperature nuclear one-stage throttling device, first are steamed
Hair heat exchanger channels and low-temperature level evaporator are sequentially connected composition low-temperature level refrigerant circulation circuit.
The utility model can also be improved further below.
The refrigerant being filled in low-temperature level refrigerant circulation circuit and in high-temperature level refrigerant circulation circuit is immiscible
Close refrigerant.
The refrigerant being filled in low-temperature level refrigerant circulation circuit is R508B or R23.
The refrigerant being filled in high-temperature level refrigerant circulation circuit is R134 or R22 or R404A.
The condenser/evaporator is horizontal shell and tube type heat exchanger or double pipe heat exchanger.
The high-temperature level condenser is horizontal shell and tube type heat exchanger or double pipe heat exchanger.
The low temperature nuclear one-stage throttling device is capillary.
The high temperature nuclear one-stage throttling device is heating power expansion valve or electric expansion valve.
The beneficial effects of the utility model are as follows：
（One）Low-temperature level refrigeration cycle system of the present utility model and high-temperature level refrigeration cycle system utilize condenser/evaporator
Heat exchange is carried out with high-temperature level condenser, the first evaporation and heat-exchange passage of high-temperature level condenser is mutual with the first condensing heat-exchange passage
Heat exchange, the second evaporation and heat-exchange passage and the second condensing heat-exchange passage of condenser/evaporator mutually exchange heat, high-temperature level refrigeration cycle system
The discharged heat of system is absorbed by the first evaporation and heat-exchange passage, while the second condenser institute of high-temperature level refrigeration cycle system
The cold for manufacturing cools the second condensing heat-exchange passage, low-temperature level refrigeration cycle system and high-temperature level refrigeration cycle system
Good effect of heat exchange so that the low-temperature level evaporator of low-temperature level refrigeration cycle system refrigeration more preferably, evaporating temperature more
Low, refrigerating speed faster, the utility model can meet in 25 minutes by the central temperature of food be reduced rapidly to -18 ° will
Ask.
（Two）Low-temperature level refrigeration cycle system of the present utility model and high-temperature level refrigeration cycle system can use pure system
Cryogen, the utility model avoid traditional folding type cooling system use mix refrigerant the drawbacks of, solve traditional answering
The refrigerating speed of the reach in freezer of stacked refrigeration system is slow, the bad allotment of refrigerant, the problem of bad maintenance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Arrow in Fig. 1 represents the flow direction of refrigerant.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
As shown in figure 1, embodiment one, a kind of modified ultra low temperature overlapping formula fast refrigerating cabinet, including low-temperature level refrigeration cycle system
System 10 and high-temperature level refrigeration cycle system 9, the high-temperature level refrigeration cycle system 9 are condensed including high-temperature level compressor 1, high-temperature level
Device 2, high temperature nuclear one-stage throttling device 3 and condenser/evaporator 4, the high-temperature level condenser 2 include that the first condensation of mutually heat exchange is changed
The evaporation and heat-exchange passage 22 of the passage of heat 21 and first, the condenser/evaporator 4 includes the second condensing heat-exchange passage 41 of mutually heat exchange
With the second evaporation and heat-exchange passage 42, the high-temperature level compressor 1, the first condensing heat-exchange passage 21, high temperature nuclear one-stage throttling device 3, with
And second evaporation and heat-exchange passage 42 be sequentially connected composition high-temperature level refrigerant circulation circuit, the low-temperature level refrigeration cycle system 10 wraps
Include low-temperature level compressor 6, oil eliminator 7, low temperature nuclear one-stage throttling device 5 and low-temperature level evaporator 8, the low-temperature level compressor
6th, oil eliminator 7, the second condensing heat-exchange passage 41, low temperature nuclear one-stage throttling device 5, the first evaporation and heat-exchange passage 22 and low-temperature level
Evaporator 8 is sequentially connected composition low-temperature level refrigerant circulation circuit.
As the utility model more specifically technical scheme.
The refrigerant being filled in low-temperature level refrigerant circulation circuit and in high-temperature level refrigerant circulation circuit is immiscible
Close refrigerant.
The refrigerant being filled in low-temperature level refrigerant circulation circuit is R508B or R23.
The refrigerant being filled in high-temperature level refrigerant circulation circuit is R134 or R22 or R404A.
The condenser/evaporator 4 is horizontal shell and tube type heat exchanger or double pipe heat exchanger.
The high-temperature level condenser 2 is horizontal shell and tube type heat exchanger or double pipe heat exchanger.
The low temperature nuclear one-stage throttling device 5 is capillary.
The high temperature nuclear one-stage throttling device 3 is heating power expansion valve or electric expansion valve.
Claims (8)
1. a kind of modified ultra low temperature overlapping formula fast refrigerating cabinet, including low-temperature level refrigeration cycle system and high-temperature level refrigeration cycle system
System, the high-temperature level refrigeration cycle system includes high-temperature level compressor, high-temperature level condenser, high temperature nuclear one-stage throttling device, Yi Jileng
Solidifying evaporator, it is characterised in that the high-temperature level condenser includes mutually the first condensing heat-exchange passage of heat exchange and the first evaporation
Heat exchanger channels, the condenser/evaporator includes the second condensing heat-exchange passage and the second evaporation and heat-exchange passage of mutually heat exchange, described
High-temperature level compressor, the first condensing heat-exchange passage, high temperature nuclear one-stage throttling device and the second evaporation and heat-exchange passage are sequentially connected composition
High-temperature level refrigerant circulation circuit, the low-temperature level refrigeration cycle system include low-temperature level compressor, low temperature nuclear one-stage throttling device and
Low-temperature level evaporator, the low-temperature level compressor, the second condensing heat-exchange passage, low temperature nuclear one-stage throttling device, the first evaporation and heat-exchange lead to
Road and low-temperature level evaporator are sequentially connected composition low-temperature level refrigerant circulation circuit.
2. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 1, it is characterised in that described to be filled in low-temperature level cold
Refrigerant in matchmaker's circulation loop and in high-temperature level refrigerant circulation circuit is non-mix refrigerant.
3. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 2, it is characterised in that described to be filled in low-temperature level cold
Refrigerant in matchmaker's circulation loop is R508B or R23.
4. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 2, it is characterised in that described to be filled in high-temperature level cold
Refrigerant in matchmaker's circulation loop is R134 or R22 or R404A.
5. the modified ultra low temperature overlapping formula fast refrigerating cabinet according to any one in claim 2-4, it is characterised in that described cold
Solidifying evaporator is horizontal shell and tube type heat exchanger or double pipe heat exchanger.
6. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 5, it is characterised in that the high-temperature level condenser is
Horizontal shell and tube type heat exchanger or double pipe heat exchanger.
7. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 6, it is characterised in that the low temperature nuclear one-stage throttling device
It is capillary.
8. modified ultra low temperature overlapping formula fast refrigerating cabinet according to claim 7, it is characterised in that the high temperature nuclear one-stage throttling device
It is heating power expansion valve or electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208789.0U CN206222782U (en) | 2016-11-09 | 2016-11-09 | A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208789.0U CN206222782U (en) | 2016-11-09 | 2016-11-09 | A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet |
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| CN206222782U true CN206222782U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621208789.0U Active CN206222782U (en) | 2016-11-09 | 2016-11-09 | A kind of modified ultra low temperature overlapping formula fast refrigerating cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300271A (en) * | 2017-08-25 | 2017-10-27 | 天津商业大学 | A kind of band shunts the bushing type evaporator of bleed |
-
2016
- 2016-11-09 CN CN201621208789.0U patent/CN206222782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300271A (en) * | 2017-08-25 | 2017-10-27 | 天津商业大学 | A kind of band shunts the bushing type evaporator of bleed |
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