CN201014831Y - DC inverter air-conditioner - Google Patents
DC inverter air-conditioner Download PDFInfo
- Publication number
- CN201014831Y CN201014831Y CNU200620170421XU CN200620170421U CN201014831Y CN 201014831 Y CN201014831 Y CN 201014831Y CN U200620170421X U CNU200620170421X U CN U200620170421XU CN 200620170421 U CN200620170421 U CN 200620170421U CN 201014831 Y CN201014831 Y CN 201014831Y
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- compressor
- gas
- liquid separator
- valve
- pipeline
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- Expired - Fee Related
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a DC frequency variable air-conditioning system, characterized in that: the compressor is a DC frequency variable compressor of a two-stage compression structure; a gas-liquid separator is connected to the pipeline on one side of a tubule valve; an electronic expansion valve A is installed on the pipeline between the gas-liquid separator and a condenser, and an electronic expansion valve B is installed on the pipeline between the gas-liquid separator and the tubule valve; a working medium pipeline is connected to the upper part of the gas-liquid separator, and is communicated with the secondary compression chamber of the compressor. The cycle system can be widely applied to the designing of high-power DC frequency variable heat pump air conditioners, with an increase by 10 to 15 percent in the capability of high-temperature refrigeration and an increase by 20 to 28 percent in the capability of low-temperature refrigeration; besides, the system can maintain stable operation continuously with excellent performances at an environmental temperature ranging from minus 15 degrees centigrade to 45 degrees centigrade.
Description
Technical field
The utility model relates to a kind of refrigeration system of air-conditioner, relates in particular to the refrigeration system of direct current varied-frequency air conditioner.
Background technology
Direct current varied-frequency air conditioner under summer outdoor high temperature environment along with outdoor temperature rises, condensing pressure increases, compression ratio increases, compressor exhaust temperature rises, when the compressor exhaust temperature height arrives certain limit, compressor limit frequency, frequency reducing can appear, even stoppage protection, the maximum (top) speed of frequency-changeable compressor is not in full use, and refrigerating capacity reduces; Heating capacity will be decayed significantly under ultra-low temperature surroundings equally, and the required thermic load of user side increases greatly, can't fully satisfy user's calorific requirement.
This shows that refrigerating capacity and the heating capacity of existing direct current varied-frequency air conditioner under adverse circumstances is limited, can not satisfy user's needs.
Summary of the invention
The utility model provides a kind of DC frequency converting air-conditioner system, and it can solve the refrigerating capacity under adverse circumstances that prior art exists and the problem of heating capacity difference.
In order to reach the purpose that solves the problems of the technologies described above, the technical solution of the utility model is, a kind of DC frequency converting air-conditioner system, it comprises compressor, fluid reservoir, solenoid operated four-way valve, extra heavy pipe valve, evaporimeter, tubule valve and condenser, above-mentioned parts are connected by the working medium pipeline, it is characterized in that described compressor is the DC frequency-changeable compressor of two stages of compression structure, be connected with gas-liquid separator on the pipeline of tubule valve one side, the pipeline between gas-liquid separator and the condenser is provided with electric expansion valve A; Be provided with electric expansion valve B on the pipeline between gas-liquid separator and the tubule valve, gas-liquid separator top is connected with a working medium pipeline, and this working medium pipeline is communicated with 2 compression chambers of compressor.
In the utility model, also has following technical characterictic: on the working medium pipeline between 2 compression chambers of gas-liquid separator and compressor, be provided with magnetic valve.
In the utility model, also have following technical characterictic: fluid reservoir is communicated with by 1 compression chamber of working medium pipeline and compressor.
In the utility model, also have following technical characterictic: described compressor is the DC frequency-changeable compressor of band gas injection equipment.
The utility model compared with prior art has the following advantages and good effect: 1. adopt this refrigeration system, can reduce compressor exhaust temperature, improve the compressor compresses ability, thereby improved refrigeration, heating capacity.2. system selects the DC frequency-changeable compressor of band gas injection equipment for use.Under the normal temperature, freeze, heat circulation time and close the EVI system, according to traditional circular flow; Open the EVI system when high temperature refrigeration and low-temperature heating, utilize the compression ratio of two electronic expansion valve regulation DC frequency-changeable compressors, system capability and system's operational reliability increase substantially.3. this circulatory system can be widely used in the design of high power DC frequency conversion heat pump air-conditioner; the high temperature refrigerating capacity improves 10%～15%; the low-temperature heating ability improves 20%～28%, and system's sustainable high ability under-15 ℃～45 ℃ ring temperature is not shut down stable operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is the utility model DC frequency converting air-conditioner system diagram.
1. off-premises station; 2. indoor set; 3. compressor; 3-1.1 inferior compression chamber; 3-2.2 inferior compression chamber; 3-3. gas supplementing opening in the middle of the compressor; 4. fluid reservoir; 5. solenoid operated four-way valve; 6. extra heavy pipe valve; 8. evaporimeter; 10. tubule valve; 11. condenser; 12. working medium pipeline; 12-1. working medium pipeline; 12-2. working medium pipeline; 13. gas-liquid separator; 14. magnetic valve; 15. electric expansion valve A; 16. electric expansion valve B.
The specific embodiment
Referring to Fig. 1, parts such as compressor 3, fluid reservoir 4, solenoid operated four-way valve 5, extra heavy pipe valve 6, evaporimeter 8, tubule valve 10 and condenser 11 connect by working medium pipeline 12.Main design of the present utility model is, compressor 3 is the DC frequency-changeable compressor of two stages of compression structure, fluid reservoir 4 is communicated with by 1 compression chamber 3-1 of working medium pipeline 12-2 and compressor, be connected with gas-liquid separator 13 on the pipeline of tubule valve 10 1 sides, the pipeline between gas-liquid separator 13 and the condenser 11 is provided with electric expansion valve A15; Be provided with electric expansion valve B16 on the pipeline between gas-liquid separator 13 and the tubule valve 10, gas-liquid separator 13 tops are connected with a working medium pipeline 12-1, and this working medium pipeline 12-1 is communicated with 2 compression chamber 3-2 of compressor.On the working medium pipeline 12-1 between 2 compression chamber 3-2 of gas-liquid separator 13 and compressor, be provided with magnetic valve 14.
Move according to refrigeration route shown in Figure 1 during refrigeration, the refrigerant steam of the HTHP of discharging from DC frequency-changeable compressor 3 during extraneous normal temperature becomes high-pressure sub-cooled liquid through condenser 11, enter evaporimeter 8 evaporations through special gas-liquid separator 13 of mistake and standard-sized sheet electric expansion valve B16 after the electric expansion valve A15 throttling step-down again, become overheated gas from external world's heat absorption and get back to compressor 3, form circulation, the magnetic valve 14 at gas supplementing opening 3-3 place cuts out in the middle of the compressor 3.
When external high temperature, the refrigerant steam of the HTHP of discharging from compressor 3 becomes high-pressure sub-cooled liquid through condenser 11, again through one the tunnel entering evaporimeter 8 evaporations with the liquid refrigerants form and get back to 1 compression chamber 3-1 of compressor from external world's heat absorption becoming overheated gas and compress after electric expansion valve A15, gas-liquid separator 13, the electric expansion valve B16 throttling step-down; Another road gaseous coolant comes out to enter compressor 3 middle gas supplementing opening 3-3 through magnetic valve 14 from gas-liquid separator 13, the gaseous state high temperature refrigerant that ejects with 1 compression chamber 3-1 carries out entering 2 compression chamber 3-2 behind the hybrid cooling and compresses, form circulation, the magnetic valve 14 at gas supplementing opening 3-3 place is opened in the middle of the compressor 3.
Move according to the route that heats shown in Figure 1 when heating, when generally heating, " evaporimeter 8 " condensation becomes high pressure low temperature liquid to the high temperature and high pressure gas of discharging from compressor 3 through diagram, through entering special gas-liquid separator 13 after the electric expansion valve B16 throttling step-down, refrigerant evaporates 1 the compression chamber 3-1 of compressor that absorbs heat → return through gas-liquid separator 13 → electric expansion valve A15 → condenser 11 and compresses.At this moment, the magnetic valve 14 at gas supplementing opening 3-3 place cuts out in the middle of the compressor 3.
When extraneous low temperature, " evaporimeter 8 " condensation becomes high pressure low temperature liquid to the high temperature and high pressure gas of discharging from compressor 3 through diagram, through entering special gas-liquid separator 13 after the electric expansion valve B16 throttling step-down, refrigerant is punished into two-way at gas-liquid separator 13, one passes by cold liquid refrigerants enters diagram " condenser 11 " evaporation heat absorption through electric expansion valve A15, the liquid refrigerants degree of supercooling improves, can in " condenser 11 ", absorb more heat, return 1 compression chamber 3-1 of compressor and compress; The gaseous coolant on No. one gas-liquid separator 13 tops enters 2 compression chamber 3-2 of compressor through magnetic valve 14 and reduces refrigerant temperature in the compressor 3, forms the complete circulation that heats.
Show thus, adopt refrigeration system of the present utility model, can reduce compressor exhaust temperature effectively, raising heats and refrigerating capacity.
Claims (4)
1. DC frequency converting air-conditioner system, it comprises compressor, fluid reservoir, solenoid operated four-way valve, extra heavy pipe valve, evaporimeter, tubule valve and condenser, above-mentioned parts are connected by the working medium pipeline, it is characterized in that described compressor is the DC frequency-changeable compressor of two stages of compression structure, be connected with gas-liquid separator on the pipeline of tubule valve one side, the pipeline between gas-liquid separator and the condenser is provided with electric expansion valve A; Be provided with electric expansion valve B on the pipeline between gas-liquid separator and the tubule valve, gas-liquid separator top is connected with a working medium pipeline, and this working medium pipeline is communicated with 2 compression chambers of compressor.
2. a kind of DC frequency converting air-conditioner according to claim 1 system is characterized in that being provided with magnetic valve on the working medium pipeline between 2 compression chambers of gas-liquid separator and compressor.
3. a kind of DC frequency converting air-conditioner according to claim 2 system is characterized in that fluid reservoir passes through 1 compression chamber of working medium pipeline and compressor and is communicated with.
4. a kind of DC frequency converting air-conditioner according to claim 1 system is characterized in that the DC frequency-changeable compressor of described compressor for band gas injection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620170421XU CN201014831Y (en) | 2006-12-30 | 2006-12-30 | DC inverter air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620170421XU CN201014831Y (en) | 2006-12-30 | 2006-12-30 | DC inverter air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014831Y true CN201014831Y (en) | 2008-01-30 |
Family
ID=39026629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620170421XU Expired - Fee Related CN201014831Y (en) | 2006-12-30 | 2006-12-30 | DC inverter air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014831Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252361A (en) * | 2010-05-20 | 2011-11-23 | Lg电子株式会社 | Hot water supply device associated with heat pump and method for controlling the same |
| CN110553438A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Unit type refrigerator |
| CN110553418A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Multi-connected refrigerator |
| CN110553437A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Hot defrosting direct current frequency conversion compression condensing unit |
-
2006
- 2006-12-30 CN CNU200620170421XU patent/CN201014831Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252361A (en) * | 2010-05-20 | 2011-11-23 | Lg电子株式会社 | Hot water supply device associated with heat pump and method for controlling the same |
| CN102252361B (en) * | 2010-05-20 | 2015-03-11 | Lg电子株式会社 | Hot water supply device associated with heat pump |
| CN110553438A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Unit type refrigerator |
| CN110553418A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Multi-connected refrigerator |
| CN110553437A (en) * | 2019-09-02 | 2019-12-10 | 全谷制冷空调（上海）有限公司 | Hot defrosting direct current frequency conversion compression condensing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HISENSE( SHANDONG ) AIR CONDITIONING CO., LTD. Free format text: FORMER OWNER: QINGDAO HISENSE AIR CONDITIONING CO. Effective date: 20080425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080425 Address after: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071 Patentee after: Hisense (Shandong) Air-Conditioning Co., Ltd. Address before: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071 Patentee before: Haisense Air Conditioner Co., Ltd., Qingdao |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20121230 |