CN101556077A - Heat pump water heater - Google Patents
Heat pump water heater Download PDFInfo
- Publication number
- CN101556077A CN101556077A CN 200810060539 CN200810060539A CN101556077A CN 101556077 A CN101556077 A CN 101556077A CN 200810060539 CN200810060539 CN 200810060539 CN 200810060539 A CN200810060539 A CN 200810060539A CN 101556077 A CN101556077 A CN 101556077A
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- CN
- China
- Prior art keywords
- expansion valve
- heat converter
- heating power
- power expansion
- outdoor
- 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.)
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- 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]
- Y02B30/12—Hot water central heating systems using heat pumps
Abstract
The invention relates to a heat pump water heater, comprising a compressor (1), a four-way electromagnetic reversing valve (2), an outdoor heat exchanger (3), an indoor heat exchanger (4), a water tank (6), and the like. The heat pump water heater is characterized in that a bidirectional heat expansion valve (5) is arranged between the outdoor heat exchanger (3) and the indoor heat exchanger (4), thereby the capability for making hot water and the energy efficiency ratio can be enhanced, and the defrosting time when indoor temperature is below 0 DEG C can be shortened at the same time.
Description
Technical field
The present invention relates to a kind of Teat pump boiler, belong to the steam compression heat pump technical field, be specially adapted to air source hot pump water heater.
Background technology
Existing Teat pump boiler, the restricting element of its system adopts capillary or electric expansion valve, adopt the Teat pump boiler of capillary as restricting element, because can not changing automatically according to outdoor temperature, regulates the refrigerant flow of its supply chamber outer heat-exchanger, cause Energy Efficiency Ratio to reduce, even can't operate as normal; Adopt the Teat pump boiler of electric expansion valve as restricting element, the refrigerant flow of its supply chamber outer heat-exchanger can change automatically according to outdoor temperature to be regulated, but it needs supporting high-precision controller and sensor, and not only cost is very expensive, and potential fault rate is also high.
Summary of the invention
The purpose of this invention is to provide and a kind ofly heat that outlet capacity is big, Energy Efficiency Ratio is high, cost is low, and the low Teat pump boiler of fault rate.
Teat pump boiler of the present invention is made up of compressor, outdoor heat converter, indoor heat converter, four-way electromagnetic reversing valve and water tank etc., it is characterized in that being provided with two-way heating power expansion valve between outdoor heat converter and the indoor heat converter.
Described two-way heating power expansion valve can be outer balance external temperature sensitive type.
Described two-way heating power expansion valve also can be external balance and internal temp sensing H type.
When Teat pump boiler of the present invention is higher than 0 ℃ in outdoor temperature, two-way heating power expansion valve is according to the size of the return-air degree of superheat, automatically regulate the refrigerant flow of supply chamber outer heat-exchanger, make the ability of outdoor heat converter obtain best performance, from outdoor air, absorb heat as much as possible,, the water in the water tank is heated gradually produce hot water as transmitting medium by cold-producing medium the heat transferred indoor heat converter that absorbs.When outdoor temperature is lower than 0 ℃, and the frosting of outdoor heat converter surface is during to certain thickness, enter the defrost program by controller, refrigeration system is by the four-way electromagnetic reversing valve reverse operation, two-way heating power expansion valve is oppositely regulated automatically, with the frost melts on outdoor heat converter surface, defrost continues to produce hot water again after finishing.
Description of drawings
Fig. 1 is the system diagram of Teat pump boiler of the present invention.
Shown in the figure:
The 1-compressor, the 2-four-way electromagnetic reversing valve, the 3-outdoor heat converter, the 4-indoor heat converter, the outer balance external temperature sensitive type two-way heating power expansion valve of 5-, 5-1-temperature-sensitive pipe, 5-2-pressure transfer tube, 5-3-connects capillary, 6-water tank, 7-muffler.
The system diagram of Teat pump boiler shown in Figure 1, outer balance external temperature sensitive type two-way heating power expansion valve 5 passes through The suction temperature that muffler 7 is flowed through in temperature-sensing pipe 5-1 impression transmits the muffler of flowing through by pressure transfer tube 5-2 7 back pressure, the return-air degree of superheat size that outer balance external temperature sensitive type two-way heating power expansion valve 5 bases are experienced, Automatically regulate the refrigerant flow of supply chamber outer heat-exchanger 3.
Specific implementation method
The heat pump water heater system that the present invention is shown in Figure 1, outer balance external temperature sensitive type two-way heating power expansion valve 5, two liquid tube connectors of its lower end are connected with indoor heat converter 4 and outdoor heat converter 3 respectively, the pressure transfer tube 5-2 on valve top is connected with muffler 7, experience the back pressure of the muffler 7 of flowing through, temperature-sensitive pipe 5-1 is by connecting the suction temperature that capillary 5-3 experiences the muffler 7 of flowing through.
The operation principle of Teat pump boiler is as follows: the compressed machine 1 of low-pressure gaseous refrigerant is collapsed into high temperature and high pressure gaseous refrigerant, the water of high temperature and high pressure gaseous refrigerant in four-way electromagnetic reversing valve 2 enters indoor heat converter 4 and water tank carries out heat exchange, heat transferred water and condensation are become high pressure liquid refrigerant, high pressure liquid refrigerant becomes the low-temp low-pressure liquid refrigerant through outer balance external temperature sensitive type two-way heating power expansion valve 5 forward throttlings, low-temp low-pressure liquid refrigerant inlet chamber outer heat-exchanger 3, carry out heat exchange with outdoor air therein, heat of vaporization in the absorption chamber outer air becomes low-pressure gaseous refrigerant, low-pressure gaseous refrigerant returns compressor through four-way electromagnetic reversing valve 2 and finishes circulation, and so constantly hot water is produced in circulation.Outer balance external temperature sensitive type two-way heating power expansion valve 5 sizes according to the return-air degree of superheat, automatically regulate the low-temp low-pressure liquid refrigeration agent flux of supply chamber outer heat-exchanger 3, when outdoor temperature reduces, the return-air degree of superheat will reduce, the aperture of outer balance external temperature sensitive type two-way heating power expansion valve 5 will reduce automatically, the refrigerant flow of supply chamber outer heat-exchanger 3 will reduce thereupon, otherwise, when outdoor temperature raises, the return-air degree of superheat will increase, the aperture of outer balance external temperature sensitive type two-way heating power expansion valve 5 will increase automatically, and the refrigerant flow of supply chamber outer heat-exchanger 3 will increase thereupon.Simultaneously, along with the rising gradually of water temperature in indoor heat converter 4 water tanks, condensing pressure raises thereupon gradually, the aperture of outer balance external temperature sensitive type two-way heating power expansion valve 5 will because of the return-air degree of superheat reduce reduce gradually.
When outdoor temperature is lower than 0 ℃, the surface of outdoor heat converter 3 is with frosting gradually, when frosting thickness to the setting value or the running certain hour after, by 2 commutations of controller control four-way electromagnetic reversing valve, make system reverse work, enter the defrost program, be that high temperature and high pressure gaseous refrigerant after 1 compression of compressed machine is through four-way electromagnetic reversing valve 2 reverse inlet chamber outer heat-exchangers 3, the frost of tying with outdoor heat converter 3 surfaces carries out heat exchange, with the heat transferred frosting, the frosting on outdoor heat converter 3 surfaces is melted gradually, simultaneously, the high temperature and high pressure gaseous refrigerant condensation becomes high pressure liquid refrigerant, and high pressure liquid refrigerant oppositely enters outer balance external temperature sensitive type two-way heating power expansion valve 5, becomes the low-temp low-pressure liquid refrigerant through reverse throttling, the low-temp low-pressure liquid refrigerant oppositely enters indoor heat converter 4, absorb the heat of water in the water tank, evaporation becomes low-pressure gaseous refrigerant, gets back to compressor 1 through four-way electromagnetic reversing valve 2 and finishes circulation; After defrost finishes, with solenoid directional control valve 2 commutations, make system convert forward work to by controller control four, continue to produce hot water.Because outer balance external temperature sensitive type two-way heating power expansion valve 5 has forward and reverse bidirectional modulation function, that has not only improved Teat pump boiler heats outlet capacity and Energy Efficiency Ratio, has improved defrost speed simultaneously, has shortened the defrost time.
Claims (3)
1. Teat pump boiler, by compressor (1), four-way electromagnetic reversing valve (2), outdoor heat converter (3), indoor heat converter (4) and water tank compositions such as (6) is characterized in that being provided with two-way heating power expansion valve (5) between outdoor heat converter (3) and the indoor heat converter (4).
2. by the described Teat pump boiler of claim 1, it is characterized in that two-way heating power expansion valve (5) is outer balance external temperature sensitive type.
3. by the described Teat pump boiler of claim 1, it is characterized in that two-way heating power expansion valve (5) also can be external balance and internal temp sensing H type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810060539 CN101556077A (en) | 2008-04-07 | 2008-04-07 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810060539 CN101556077A (en) | 2008-04-07 | 2008-04-07 | Heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101556077A true CN101556077A (en) | 2009-10-14 |
Family
ID=41174286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810060539 Pending CN101556077A (en) | 2008-04-07 | 2008-04-07 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101556077A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811148A (en) * | 2020-07-30 | 2020-10-23 | 合肥美的暖通设备有限公司 | Fault detection method and device, heat pump heating equipment and computer readable storage medium |
| WO2021249047A1 (en) * | 2020-06-08 | 2021-12-16 | 广东美的制冷设备有限公司 | Control method, control device, air conditioning system and computer-readable storage medium |
-
2008
- 2008-04-07 CN CN 200810060539 patent/CN101556077A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021249047A1 (en) * | 2020-06-08 | 2021-12-16 | 广东美的制冷设备有限公司 | Control method, control device, air conditioning system and computer-readable storage medium |
| CN111811148A (en) * | 2020-07-30 | 2020-10-23 | 合肥美的暖通设备有限公司 | Fault detection method and device, heat pump heating equipment and computer readable storage medium |
| CN111811148B (en) * | 2020-07-30 | 2022-03-25 | 合肥美的暖通设备有限公司 | Fault detection method and device, heat pump heating equipment and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091014 |