CN2364403Y - Cryogenic refrigerator - Google Patents
Cryogenic refrigerator Download PDFInfo
- Publication number
- CN2364403Y CN2364403Y CN 99203770 CN99203770U CN2364403Y CN 2364403 Y CN2364403 Y CN 2364403Y CN 99203770 CN99203770 CN 99203770 CN 99203770 U CN99203770 U CN 99203770U CN 2364403 Y CN2364403 Y CN 2364403Y
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- Prior art keywords
- component
- condenser
- compressor
- refrigeration
- constituent
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- Expired - Fee Related
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- 238000009835 boiling Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000005057 refrigeration Methods 0.000 claims description 31
- 238000001704 evaporation Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 abstract 7
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a low temperature refrigerator. Mixing refrigerating medium is compressed by a refrigerating compressor. Then the mixing refrigerating medium can enter into a constituent classifier to be throttled and evaporated after passing through a condenser, a dry filter and a throttling element. Liquid constituent of high boiling point arranged in the lower part of the constituent classifier passes through a heat regenerator, the throttling element, the constituent classifier, a condensing evaporator and the heat regenerator, and then the liquid high boiling component returns to the compressor. Vaporous constituent of low boiling point arranged in the upper part of the constituent classifier can pass through the condensing evaporator, the throttling element, the evaporator and the heat regenerator, and then the vaporous constituent of low boiling point returns to the compressor. The utility model has the advantages of simple device and low price.
Description
The utility model relates to refrigeration machine, relates in particular to Cryo Refrigerator.
Along with hyundai electronics is learned, the development of biomedical, material and process technology, the refrigerating plant that can reach-150 ℃ of left and right sides low temperature has the application world more and more widely.Traditional method that reaches-150 ℃ of left and right sides low temperature is to adopt the cascade refrigeration device, there are two or more kind of refrigeration cycle in such device, the high temperature level adopts different working medium with the low temperature level, high low temperature inter-stage is connected by condenser/evaporator, in condenser/evaporator, high temperature level cold-producing medium is evaporated, and low temperature level cold-producing medium is condensed.These apparatus features are will be with a plurality of refrigeration compressors and multiple cold-producing medium, and system is complicated; In addition, the low temperature level in the system will adopt effective oil separating device, and not so, lubricating oil will make system jams in the low temperature partial coagulation, cause system not work.So far, make a kind of effective oil separating device and still have big difficulty.
The purpose of this utility model provides a kind of Cryo Refrigerator simple, cheap, that efficient is high that installs.
The utility model is taked following measures in order to achieve the above object:
Cryogenic refrigerating unit comprises refrigeration compressor, condenser, device for drying and filtering, evaporimeter and restricting element hybrid refrigeration working medium are after the refrigeration compressor compression, pass through condenser, device for drying and filtering, after entering the heat exchange of component separator bottom, through restricting element throttling and evaporation in the middle part of component separator, the liquid high boiling component of component separator bottom is passed through regenerator, after restricting element enters component separator top throttling part evaporation and heat-exchange, evaporate fully by condenser/evaporator, the steam state low boiling component of coming out with evaporimeter is joined then, return refrigeration compressor through regenerator, the steam state low boiling component on component separator top, pass through condenser/evaporator, through restricting element, throttling and evaporation refrigeration in evaporimeter.
Advantage of the present utility model:
1. only use a conventional single-stage refrigeration compressor, this Compressor Technology maturation, production lot is big, obtains easily, and is cheap.The high temperature level adopts this class compressor in the conventional apparatus, and the low temperature level will adopt special cryogenic compressor, and the price of cryogenic compressor is much higher than conventional compressor.In addition, the low temperature level is furnished with expansion vessel in the conventional apparatus that has, in case hypertonia when shutting down, there is not this problem in the utility model.Therefore, the production cost of the utility model cryogenic refrigerating unit will be more much lower than traditional cascade refrigeration device.
2. adopt the component separator of band heating and cooling heat exchanger, the realization high boiling component is better separated with cheap some group.In addition, lubricating oil is also separated in component separator, returns compressor with high boiling component, can not enter system hypothermia and partly cause pipeline blockage.
3. because do not exist between hiigh pressure stage and low-pressure stage and cooperate operation problem, the utility model will be simpler than conventional apparatus in control, and operation will be more steady.
4. refrigeration compressor is the moving component in the system, also is easily worn part, because the utility model is only used a compressor, and conventional apparatus will be used multiple compressors, so the probability that system breaks down will significantly reduce.Even when breaking down, the utility model is also more convenient in maintenance.
Elaborate below in conjunction with accompanying drawing.
Accompanying drawing is the Cryo Refrigerator structural representation.
Cryogenic refrigerating unit comprises refrigeration compressor, condenser, device for drying and filtering, evaporimeter and restricting element, hybrid refrigeration working medium is after refrigeration compressor 1 compression, by condenser 2, device for drying and filtering 3, after entering component separator 4 bottom heat exchange, in component separator middle part throttling and evaporation, the liquid high boiling component of component separator bottom is by regenerator 10 through restricting element 5, after restricting element 6 enters component separator top throttling part evaporation and heat-exchange, evaporate fully by condenser/evaporator 7, the steam state low boiling component of coming out with evaporimeter is joined then, returns refrigeration compressor by regenerator, the steam state low boiling component on component separator top, by condenser/evaporator, through restricting element 8, throttling and evaporation refrigeration in evaporimeter 9.The boiling point of the high boiling component of hybrid refrigeration working medium is 0～-45 ℃, and the boiling point of low boiling component is-70～-150 ℃.Refrigeration compressor is the single-stage refrigeration compressor, and its pressure ratio of just arbitrarily downgrading is not more than 10.
The operation principle of Cryo Refrigerator is as follows: after mixed working fluid (is example with R134a/R23) compresses through refrigeration compressor, heat release in condenser, after throttling, enter component separator, high boiling component in component separator (R134a) is separated comparatively up hill and dale with low boiling component (R23), concentration is come out from the bottom greater than 99.5% R134a liquid and lubricating oil, and the R23 gas of concentration big one 99.5% is overflowed from the top, two fluid streams are in condenser/evaporator after the heat exchange, R134a has become vapour phase, R23 is liquefied, R23 after the liquefaction is through evaporating in evaporimeter after the throttling, thereby reaches the purpose of refrigeration; The mixed working medium of coming out in the condenser/evaporator turns back to refrigeration compressor through regenerator.
Claims (3)
1. cryogenic refrigerating unit, it comprises refrigeration compressor, condenser, device for drying and filtering, evaporimeter and restricting element, it is characterized in that hybrid refrigeration working medium is after refrigeration compressor [1] compression, by condenser [2], device for drying and filtering [3], after entering component separator [4] bottom heat exchange, through restricting element [5] throttling and evaporation in the middle part of component separator, the liquid high boiling component of component separator bottom is by regenerator [10], through restricting element [6], after entering component separator top throttling part evaporation and heat-exchange, evaporate fully by condenser/evaporator [7], the steam state low boiling component of coming out with evaporimeter is joined then, return refrigeration compressor by regenerator, the steam state low boiling component on component separator top, by condenser/evaporator, through restricting element [8], throttling and evaporation refrigeration in evaporimeter [9].
2. a kind of Cryo Refrigerator according to claim 1, the boiling point that it is characterized in that the high boiling component of said hybrid refrigeration working medium are 0～-45 ℃, the boiling point of low boiling component-70～-150 ℃.
3. a kind of Cryo Refrigerator according to claim 1 and 2 is characterized in that said refrigeration compressor is the single-stage refrigeration compressor, and its pressure ratio of just arbitrarily downgrading is not more than 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203770 CN2364403Y (en) | 1999-03-10 | 1999-03-10 | Cryogenic refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203770 CN2364403Y (en) | 1999-03-10 | 1999-03-10 | Cryogenic refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364403Y true CN2364403Y (en) | 2000-02-16 |
Family
ID=33998778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99203770 Expired - Fee Related CN2364403Y (en) | 1999-03-10 | 1999-03-10 | Cryogenic refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364403Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776358A (en) * | 2010-03-02 | 2010-07-14 | 浙江大学 | Varied concentration mixed working medium auto-cascade refrigerator |
| CN109737654A (en) * | 2018-12-11 | 2019-05-10 | 珠海格力电器股份有限公司 | Blockage detection method and unit capable of detecting blockage |
-
1999
- 1999-03-10 CN CN 99203770 patent/CN2364403Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776358A (en) * | 2010-03-02 | 2010-07-14 | 浙江大学 | Varied concentration mixed working medium auto-cascade refrigerator |
| CN109737654A (en) * | 2018-12-11 | 2019-05-10 | 珠海格力电器股份有限公司 | Blockage detection method and unit capable of detecting blockage |
| CN109737654B (en) * | 2018-12-11 | 2024-01-23 | 珠海格力电器股份有限公司 | Blocking detection method and unit capable of detecting blocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 2000.02.16 |