CN204693886U - There is the refrigeration system of double electronic expansion-valve - Google Patents
There is the refrigeration system of double electronic expansion-valve Download PDFInfo
- Publication number
- CN204693886U CN204693886U CN201520399316.2U CN201520399316U CN204693886U CN 204693886 U CN204693886 U CN 204693886U CN 201520399316 U CN201520399316 U CN 201520399316U CN 204693886 U CN204693886 U CN 204693886U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- valve
- refrigeration system
- electric expansion
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to air-conditioner technical field, disclose a kind of refrigeration system with double electronic expansion-valve, comprise compressor, cross valve, outdoor heat exchanger, indoor heat exchanger, electric expansion valve, middle pressure reservoir and bypass solenoid valve, described electric expansion valve is two, be separately positioned on the both sides of described middle pressure reservoir, first electric expansion valve is connected with described outdoor heat exchanger, and the second electric expansion valve is connected with described indoor heat exchanger; One end of described bypass solenoid valve is connected with described middle pressure reservoir, and the other end is connected with the air intake duct of described compressor.The utility model can lower the pressure loss of heat exchanger inner refrigerant, thus improves the heat exchanger effectiveness of heat exchanger, to obtain higher Energy Efficiency Ratio.
Description
Technical field
The utility model relates to air-conditioner technical field, particularly a kind of refrigeration system with double electronic expansion-valve.
Background technology
See accompanying drawing 2, the transducer air conditioning that current room and working environment use, its refrigeration system substantially all only has an electronic expansion valve controls, be difficult to accurately control the state of cold-producing medium, thus strengthen the pressure loss of heat exchanger inner refrigerant, cause the heat exchanger effectiveness of heat exchanger not high, air-conditioning system Energy Efficiency Ratio is low.
Utility model content
The utility model, in order to solve the problems of the technologies described above, provide a kind of refrigeration system with double electronic expansion-valve, can lower the pressure loss of heat exchanger inner refrigerant, thus improves the heat exchanger effectiveness of heat exchanger, to obtain higher Energy Efficiency Ratio.
To achieve these goals, the utility model provides following technical scheme:
A kind of refrigeration system with double electronic expansion-valve, comprise compressor, cross valve, outdoor heat exchanger, indoor heat exchanger and electric expansion valve, it is characterized in that, also comprise middle pressure reservoir and bypass solenoid valve, described electric expansion valve is two, be separately positioned on the both sides of described middle pressure reservoir, the first electric expansion valve is connected with described outdoor heat exchanger, and the second electric expansion valve is connected with described indoor heat exchanger; One end of described bypass solenoid valve is connected with described middle pressure reservoir, and the other end is connected with the air intake duct of described compressor.
Further, described refrigeration system is frequency-conversion air-conditioning system.
Further, the cold-producing medium of described refrigeration system is R410A, R32 or CO
2.
Further, described compressor is DC frequency-changeable compressor.
Further, described refrigeration system is that one-to-one system or drags multisystem.
The beneficial effects of the utility model are:
The utility model overcomes the large defect of the existing transducer air conditioning heat exchanger inner refrigerant pressure loss, can lower the pressure loss of heat exchanger inner refrigerant, thus improves the heat exchanger effectiveness of heat exchanger, to obtain higher Energy Efficiency Ratio.
Accompanying drawing explanation
Fig. 1 is the utility model refrigeration system schematic diagram;
Fig. 2 is existing refrigeration system schematic diagram.
In figure: 1 be compressor, 2 be cross valve, 3 be outdoor heat exchanger, 4 be middle pressure reservoir, 8 be bypass solenoid valve for indoor heat exchanger, 5 to be the first electric expansion valve, 6 be the second electric expansion valve, 7.
Detailed description of the invention
Detailed description of the invention the utility model below in conjunction with accompanying drawing to the refrigeration system of double electronic expansion-valve elaborates.
See accompanying drawing 1, there is the refrigeration system of double electronic expansion-valve, comprise compressor 1, cross valve 2, outdoor heat exchanger 3, indoor heat exchanger 4, first electric expansion valve 5, second electric expansion valve 6, middle pressure reservoir 7 and bypass solenoid valve 8.Four ports of cross valve 2 are connected with one end of indoor heat exchanger 6 with the blast pipe of compressor 1, the air intake duct of compressor 1, one end of outdoor heat exchanger 3 respectively; One end of first electric expansion valve 5 is connected with the other end of outdoor heat exchanger 3, and the other end of the first electric expansion valve 5 is connected with one end of middle pressure reservoir 7; One end of second electric expansion valve 6 is connected with the other end of middle pressure reservoir 7, and the other end of the second electric expansion valve 6 is connected with the other end of indoor heat exchanger 6; One end of bypass solenoid valve 8 is connected with middle pressure reservoir 7, and the other end is connected with the air intake duct of compressor 1.
Refrigeration system of the present utility model can drag multisystem for one-to-one system or, and compressor adopts DC frequency-changeable compressor.
Adopt environmental protection refrigerant R410A, R32 or CO
2air-conditioning system, its refrigerant pressure is higher than the system of R22 cold-producing medium, and the pressure loss is also large.The existing refrigeration system (see accompanying drawing 2) only having an electric expansion valve, due to the refrigerant condition of priority acccess control outdoor heat exchanger side, so be difficult to accurately control to the refrigerant condition of indoor heat exchanger side, thus strengthen the pressure loss of indoor heat exchanger inner refrigerant, affect the heat exchanger effectiveness of indoor heat exchanger.
See accompanying drawing 1, operation principle of the present utility model is the design adopting double electronic expansion-valve, the refrigerant condition in the first external heat exchanger 3 side, electric expansion valve 5 control room, second electric expansion valve 6 controls the refrigerant condition of indoor heat exchanger 4 side, the refrigerant condition of such outside and indoor two side can tricklely control to adjust, and reaches optimum refrigerant condition.Refrigeration system there will be cold-producing medium too much or the situation of lack of refrigerant, and press reservoir 7 in arranging between the first electric expansion valve 5 and the second electric expansion valve 6, unnecessary refrigerant storage is in middle pressure reservoir 7; When lack of refrigerant, the cold-producing medium be stored in middle pressure reservoir 7 can be used.But middle pressure reservoir 7 inner refrigerant has liquid and gas to mix and exists, and the cold-producing medium of gas-liquid two-phase can affect the flow of refrigerant of indoor heat exchanger 4 side, causes heat exchange efficiency poor.Design bypass solenoid valve 8, the air intake duct of reservoir 7 and compressor 1 is pressed in connection, vapor phase refrigerant in middle pressure reservoir 7 is sucked compressor 1, the cold-producing medium of liquid phase is only had in middle pressure reservoir 7, such liquid phase refrigerant flows into indoor heat exchanger 4 after the second electric expansion valve 6 throttling, the indoor heat exchanger 4 inner refrigerant pressure loss lowers, and pyroconductivity promotes, thus improves the heat exchanger effectiveness of indoor heat exchanger 4.
During refrigeration: cold-producing medium is by the gas of compressor 1 boil down to HTHP, through cross valve 2, deliver to outdoor heat exchanger 3, cool after outdoor heat exchanger 3 carries out exchange heat, become the gas-liquid mixture of medium temperature and medium pressure, then through the first electric expansion valve 5, now the first electric expansion valve 5 is opened, deliver to middle pressure reservoir 7, now bypass solenoid valve 8 is opened, vapor phase refrigerant is sucked by compressor 1, and liquid phase refrigerant is after the second electric expansion valve 6 throttling, become the liquid of low-temp low-pressure, again by indoor heat exchanger 4, indoor heat exchanger 4 by exchange heat in room air to cold-producing medium, indoor air temperature reduces, to indoor refrigeration.Cold-producing medium becomes the gas of low-temp low-pressure after indoor heat exchanger heat exchange, by cross valve, then is sucked by compressor, then by turning the gas of HTHP after compressor compresses, completes kind of refrigeration cycle.
When heating: cold-producing medium, by the gas of compressor 1 boil down to HTHP, through cross valve 2, delivers to indoor heat exchanger 4, cools after indoor heat exchanger 4 carries out exchange heat, indoor air is warmed and produces and heat.Cooled cold-producing medium becomes the gas-liquid mixture of medium temperature and medium pressure, then through the second electric expansion valve 6, now the second electric expansion valve 6 is opened, deliver to middle pressure reservoir 7, now bypass solenoid valve 8 is opened, and vapor phase refrigerant is sucked by compressor 1, and liquid phase refrigerant is after the first electric expansion valve 5 throttling, become the liquid of low-temp low-pressure, then by outdoor heat exchanger 3, outdoor heat exchanger 3 by cold-producing medium exchange heat to outdoor air.Cold-producing medium becomes the gas of low-temp low-pressure after outdoor heat exchanger heat exchange, then by cross valve, is sucked, then by turning the gas of HTHP after compressor compresses, completing and heating circulation by compressor.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. one kind has the refrigeration system of double electronic expansion-valve, comprise compressor, cross valve, outdoor heat exchanger, indoor heat exchanger and electric expansion valve, it is characterized in that: also comprise middle pressure reservoir and bypass solenoid valve, described electric expansion valve is two, be separately positioned on the both sides of described middle pressure reservoir, first electric expansion valve is connected with described outdoor heat exchanger, and the second electric expansion valve is connected with described indoor heat exchanger; One end of described bypass solenoid valve is connected with described middle pressure reservoir, and the other end is connected with the air intake duct of described compressor.
2. the refrigeration system with double electronic expansion-valve according to claim 1, is characterized in that: described refrigeration system is frequency-conversion air-conditioning system.
3. the refrigeration system with double electronic expansion-valve according to claim 1 and 2, is characterized in that: the cold-producing medium of described refrigeration system is R410A, R32 or CO
2.
4. the refrigeration system with double electronic expansion-valve according to claim 1 and 2, is characterized in that: described compressor is DC frequency-changeable compressor.
5. the refrigeration system with double electronic expansion-valve according to claim 1, is characterized in that: described refrigeration system is that one-to-one system or drags multisystem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399316.2U CN204693886U (en) | 2015-06-07 | 2015-06-07 | There is the refrigeration system of double electronic expansion-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399316.2U CN204693886U (en) | 2015-06-07 | 2015-06-07 | There is the refrigeration system of double electronic expansion-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204693886U true CN204693886U (en) | 2015-10-07 |
Family
ID=54234167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520399316.2U Expired - Fee Related CN204693886U (en) | 2015-06-07 | 2015-06-07 | There is the refrigeration system of double electronic expansion-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204693886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895179A (en) * | 2015-12-21 | 2017-06-27 | 特灵国际有限公司 | Electronic expansion device |
-
2015
- 2015-06-07 CN CN201520399316.2U patent/CN204693886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895179A (en) * | 2015-12-21 | 2017-06-27 | 特灵国际有限公司 | Electronic expansion device |
| US10697676B2 (en) | 2015-12-21 | 2020-06-30 | Trane International Inc. | Electronic expansion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101865555A (en) | Multi-split air-conditioner capable of simultaneously refrigerating and heating | |
| WO2020073481A1 (en) | Air conditioning system | |
| CN203024273U (en) | Multi-connection indoor unit and multi-connection type air conditioner system | |
| CN103673138A (en) | Air conditioner and control method thereof | |
| CN106225280A (en) | A kind of refrigeration or heat pump and a kind of Condensing units | |
| CN204438396U (en) | There is the air-conditioner set of accumulation of energy function | |
| CN101576328B (en) | Big supercooling degree machine room air conditioner | |
| CN103868281B (en) | A kind of single/double stage compresses switchable tri-generation system of ground-source heat pump | |
| CN103615838B (en) | The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable | |
| CN204693886U (en) | There is the refrigeration system of double electronic expansion-valve | |
| CN101382354A (en) | Double- effective day/night high temperature water-water heat pump hot water unit | |
| CN203501358U (en) | Air conditioning system | |
| CN204254925U (en) | Heat exchange system and air conditioner with same | |
| CN203501363U (en) | Double-effect heat pump air conditioning unit | |
| CN203518084U (en) | Dehumidifying and temperature-adjusting air-cooled unit | |
| CN203163097U (en) | Solar air conditioner | |
| CN101576297B (en) | Big supercooling degree completely fresh air air processing machine set | |
| CN204555104U (en) | Water-refrigerant heat exchanging air conditioner off-premises station | |
| CN203132020U (en) | Machine room base station air conditioner energy-saving device | |
| CN201873148U (en) | Novel cold storage and heat storage tank of compressor | |
| CN201964611U (en) | Commercial ultra-low temperature heat pump water heater unit | |
| CN201926193U (en) | Multifunctional double-source heat pump air-conditioning system | |
| CN105202663A (en) | Exhausting and heating heat pump air conditioning unit | |
| CN205079505U (en) | Electricity boosting ally oneself with air conditioning unit more | |
| CN110657600A (en) | Constant temperature and humidity air conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518001 Shenzhen, Nanshan District Bay, the Gulf of CITIC Bay, building B303, 5, Patentee after: Shenzhen Wohaisen Technology Co. Ltd. Address before: 518001 Shenzhen, Nanshan District Bay, the Gulf of CITIC Bay, building B303, 5, Patentee before: SHENZHEN WOSEN AIR-CONDITIONING TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20190607 |