CN204100637U - A kind of twice decompression carbon dioxide household electric refrigerator - Google Patents
A kind of twice decompression carbon dioxide household electric refrigerator Download PDFInfo
- Publication number
- CN204100637U CN204100637U CN201420524920.9U CN201420524920U CN204100637U CN 204100637 U CN204100637 U CN 204100637U CN 201420524920 U CN201420524920 U CN 201420524920U CN 204100637 U CN204100637 U CN 204100637U
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- decompressor
- carbon dioxide
- circulating fan
- household electric
- storeroom
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Abstract
The utility model relates to a kind of twice decompression carbon dioxide household electric refrigerator, comprise cooling cycle system and storeroom, cooling cycle system one-level expenditure and pressure device adopts decompressor, and two-step throttle decompressor adopts electric expansion valve, and decompressor is connected with circulating fan is coaxial; In refrigerating operaton process, decompressor once expands step-down, and its expansion work is exported to circulating fan, for circulating cold air in storeroom; Electric expansion valve is used for being depressurized to evaporating pressure to expander outlet cold-producing medium secondary further.Its beneficial effect is: recyclable a part of expansion work is used for the energy supply to circulating fan, thus reduce the input of electric energy, the efficiency of system is provided, two-stage expenditure and pressure device is used in conjunction with each other, being equivalent to provide one can the capillary of adaptations length according to cooling condition change, thus performance of refrigerant systems is further optimized, be conducive to carbon dioxide environmental protection refrigerant applying at refrigerator.
Description
Technical field
The utility model relates to a kind of twice decompression carbon dioxide household electric refrigerator, belongs to cold-producing medium expansion work and reclaims for refrigerator air fluid forced circulation technical field.
Background technology
Refrigerator and air conditioner industry, the extensive research about perchloro-fluorohydrocarbon and hydrochlorofluorocarsolvent substitute is never interrupted.Although Substitute Working Medium new at present has started to commercially produce, it is found that new Substitute Working Medium can not meet the requirement of " for a long time " substitute, most of Biological process has higher greenhouse effects index or other defect.Therefore, the application of natural medium causes the attention of people, particularly to the utilization of carbon dioxide.Front International Institute or Refrigeration chairman just once advocated energetically and used natural refrigerant, was playing good leading role in the research and extension application of carbon dioxide.From then on the research and apply of carbon dioxide refrigeration device becomes again valued focus in the world;
According to the study, carbon dioxide has high density and low viscosity, and its flow losses are little, heat-transfer effect good, and by the strengthening to heat transfer effect, can make up the shortcoming that its circulation is not high.Simultaneously carbon dioxide environment performance is excellent, expense is lowly easy to acquisitions, good stability, be conducive to reduction device volume.The most important thing is, its safety non-toxic, non-combustible, this point has obvious advantage than R290;
Trans critical cycle is adopted as cold-producing medium using carbon dioxide, be generally used for large-scale refrigerating plant occasion, due to hiigh pressure stage pressure higher (about 10MPa), pressure reduction before and after throttling comparatively large (about 6MPa), larger energy loss is there is in throttling process, thus current carbon freezing air-conditioning system, many employings decompressor reclaims restriction loss to improve cycle efficieny, the compressor of its existing known technology normally in refrigeration system carries out energy regenerating with decompressor coaxial connection, because compressor does not mate with the output work of decompressor, the problem caused is exactly the input needing extra electric work compressor to be carried out to power, or adopt an auxiliary compressor to carry out recovery expansion work in refrigeration system, set up another main compressor as the main boosted power of cold-producing medium, what bring thus be problem is the complexity of system or the difficulty of start-up course.
Utility model content
In order to address the aforementioned drawbacks, the utility model adopts following technical scheme: a kind of twice decompression carbon dioxide household electric refrigerator, comprise cooling cycle system and storeroom, it is characterized in that: the one-level expenditure and pressure device of described cooling cycle system adopts decompressor, two-step throttle decompressor adopts electric expansion valve, and described decompressor is connected with described circulating fan is coaxial; In refrigerating operaton process, described one-level expenditure and pressure device decompressor once to expand step-down to carbon dioxide coolant, and its expansion work is exported to described circulating fan, for the circulating cold air in storeroom; Described two-step throttle decompressor electric expansion valve is used for being depressurized to evaporating pressure to described expander outlet carbon dioxide coolant secondary further;
The technique effect that the utility model is useful: refrigerator adopts natural environmental-protective working medium carbon dioxide as cold-producing medium, can not damage ozone layer or cause global warming, recyclable a part of expansion work is used for the energy supply to circulating fan, thus reduce the input of refrigerator electric energy, the efficiency of system is provided, on the other hand, two-stage expenditure and pressure device is used in conjunction with each other, effect is equivalent to provide one can be made Adaptive change length capillary pipe structure according to cooling condition change, thus the performance of refrigeration system is further optimized, twice decompression is conducive to carbon dioxide environmental protection refrigerant applying at refrigerator.
Accompanying drawing explanation
Fig. 1 carbon dioxide household electric refrigerator of the present utility model section structure schematic diagram;
The kind of refrigeration cycle schematic diagram of Fig. 2 carbon dioxide household electric refrigerator of the present utility model;
Description of reference numerals: decompressor 1, blower fan 2, evaporimeter 3, air channel 4, compressor 5, cooler 6, device for drying and filtering 7, storeroom 8, electric expansion valve 9.
Detailed description of the invention
Below by specific embodiment, the technical solution of the utility model and Advantageous Effects are described in detail, but these exemplary embodiments are only for exemplifying, and not any type of any restriction formed to real protection scope of the present utility model;
Figure 1 shows that the utility model reduces pressure for twice carbon dioxide household electric refrigerator section structure schematic diagram, comprise cooling cycle system and storeroom 8, composition graphs 2 is described as follows it:
The cooling cycle system that the compressor 5 connected successively by refrigerating circulation, cooler 6, decompressor 1, electric expansion valve 9, device for drying and filtering 7, evaporimeter 3 are formed.Decompressor 1 is connected with circulating fan 2 is coaxial, is fixed in the air channel 4 of carbon dioxide household electric refrigerator.In process of refrigerastion, the high-pressure carbon dioxide gas that cooler 6 is discharged is after decompressor 1 expands once decompression, enter into the two-phase state that electric expansion valve 9 secondary pressure becomes low-temp low-pressure, absorb heat in evaporimeter 3 after, high-pressure gaseous is collapsed into through compressor 5 air-breathing, enter into after cooler 6 cools, again enter into decompressor 1 and carry out expansion decompression, so far form a cooling cycle system completed.At high-pressure carbon dioxide gas in decompressor 1 in expansion decompression process, its expansion work exports to the circulating fan 6 of coaxial connection, circulates for the cold air in storeroom 8;
The cold air that one-level expenditure and pressure device decompressor 1 recovery section expansion work is used in circulating fan 2 pairs of storerooms 8 circulates, two-step throttle decompressor electric expansion valve 9 can according to the size of refrigerating capacity, and the change of operating mode, carry out the adjustment of aperture size, jointly coordinate with one-level expenditure and pressure device decompressor 1, thus the optimum performance under the refrigeration system of carbon dioxide household electric refrigerator can be enable to meet wide working condition running state, overcome the technical problem of carbon dioxide refrigerating system adopts single expenditure and pressure device decompression adjusting function difference to cause systematic function decline when transcritical operation and subcritical operation, popular says: Advantageous Effects of the present utility model: recyclable a part of expansion work is used for the power supply to circulating fan 2, thus reduce the input of electric energy, the efficiency of system is provided, on the other hand, two-stage expenditure and pressure device is used in conjunction with each other, effect is equivalent to provide one can the capillary pipe structure of adaptations length according to cooling condition change, thus the performance of refrigeration system is further optimized,
Further: decompressor 1 can be rolling-piston-type, vortex, slide sheet type;
Further: described circulating fan 2 is preferably axial flow blower.
Claims (3)
1. twice decompression carbon dioxide household electric refrigerator, comprise cooling cycle system and storeroom, it is characterized in that: the one-level expenditure and pressure device of described cooling cycle system adopts decompressor, two-step throttle decompressor adopts electric expansion valve, and described decompressor is connected with described circulating fan is coaxial; In refrigerating operaton process, described one-level expenditure and pressure device decompressor once to expand step-down to carbon dioxide coolant, and its expansion work is exported to described circulating fan, for the airflow circulating in storeroom; Described two-step throttle decompressor electric expansion valve is used for being depressurized to evaporating pressure to described expander outlet carbon dioxide coolant secondary further.
2. twice decompression carbon dioxide household electric refrigerator according to claim 1, is characterized in that: described decompressor can be rolling-piston-type, vortex, slide sheet type.
3. twice decompression carbon dioxide household electric refrigerator according to claim 1, is characterized in that: described circulating fan is preferably axial flow blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524920.9U CN204100637U (en) | 2014-09-15 | 2014-09-15 | A kind of twice decompression carbon dioxide household electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524920.9U CN204100637U (en) | 2014-09-15 | 2014-09-15 | A kind of twice decompression carbon dioxide household electric refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204100637U true CN204100637U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420524920.9U Expired - Fee Related CN204100637U (en) | 2014-09-15 | 2014-09-15 | A kind of twice decompression carbon dioxide household electric refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204100637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075522A (en) * | 2014-07-10 | 2014-10-01 | 安徽红叶节能电器科技有限公司 | Energy supply method for circulating fan of household carbon dioxide refrigerator |
| CN104180585A (en) * | 2014-09-15 | 2014-12-03 | 安徽红叶节能电器科技有限公司 | Energy supply method for circulating fan of household carbon dioxide refrigerator |
-
2014
- 2014-09-15 CN CN201420524920.9U patent/CN204100637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075522A (en) * | 2014-07-10 | 2014-10-01 | 安徽红叶节能电器科技有限公司 | Energy supply method for circulating fan of household carbon dioxide refrigerator |
| CN104180585A (en) * | 2014-09-15 | 2014-12-03 | 安徽红叶节能电器科技有限公司 | Energy supply method for circulating fan of household carbon dioxide refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20180915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |