CN201488418U - Defrosting structure of air source heat pump water heater - Google Patents
Defrosting structure of air source heat pump water heater Download PDFInfo
- Publication number
- CN201488418U CN201488418U CN200920194419XU CN200920194419U CN201488418U CN 201488418 U CN201488418 U CN 201488418U CN 200920194419X U CN200920194419X U CN 200920194419XU CN 200920194419 U CN200920194419 U CN 200920194419U CN 201488418 U CN201488418 U CN 201488418U
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- heat exchanger
- side heat
- defrosting
- magnetic valve
- connects
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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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model belongs to the technical field of air source heat pump water heaters, and particularly relates to a defrosting structure of an air source heat pump water heater, which comprises a water side heat exchanger, a wind side heat exchanger with a fan, a second electromagnetic valve, a four-way valve, a compressor, a gas-liquid separator, a defrosting logic control unit and a hot gas bypass defrosting structure, wherein the hot gas bypass defrosting structure comprises a first electromagnetic valve, one end of the first electromagnetic valve is connected with an exhaust port of the compressor, the other end of the first electromagnetic valve is connected with an inlet of the wind side heat exchanger, and the defrosting logic control unit is electrically connected with the fan, the four-way valve, the compressor, the second electromagnetic valve and the first electromagnetic valve; the utility model combines the characteristics of a traditional circulatory defrosting mode and a hot gas bypass defrosting mode and can effectively defrost and guarantee a safer and more stable system.
Description
Technical field:
The utility model relates to the air source hot pump water heater technical field, relates in particular to the defrosting structure of air source hot pump water heater.
Background technology:
Heat pump techniques is the new energy technology paid close attention to of the whole world extremely in recent years, mainly is divided into water resource heat pump, earth source heat pump, air source heat pump three major types, has advantages such as energy-saving and environmental protection, safety, round-the-clock use.Air source hot pump water heater is that one of air source heat pump is used greatly, the heat pump of air source hot pump water heater can absorb airborne low temperature heat energy, be converted into high temperature heat after the compressed again machine compression, be used to heat water temperature, this water heater has energy-efficient characteristics, and its power consumption is 1/4 of equal capacity electric heater, is 1/3 of gas heater, thereby be an energy-saving and environmental protection new technology that has the development and application potentiality, have practical value.
Existing air source hot pump water heater when carrying out heating condition under low temperature environment, is understood frosting usually, thereby is influenced the normal heat supply of unit, so must time defrosting on the unit coil pipe of evaporimeter (wind side fan heater).At present, the traditional circulation Defrost mode of general employing defrosts, cross valve commutation by the control air source hot pump water heater makes condenser (water-side heat) and evaporimeter (wind side fan heater) under the former heating condition exchange switching, oppositely makes cooling operation, thereby defrost, this traditional circulation Defrost mode, system's heating load is subjected to tangible influence during defrosting, causes the fluctuation of water temperature big, not only influence user's normal use, also reduce security of system stability.Also have and utilize the Defrost mode of hot-gas bypass to defrost, the hot-gas bypass defrosting is less to the impulse ratio of system, and security is corresponding higher, but maximum drawback is that defrosting is not thorough, unreliable.And existing air source hot pump water heater, or adopt traditional circulation Defrost mode, or adopt the Defrost mode of hot-gas bypass, Defrost mode is single, and shortcoming is obvious.
The utility model content:
The purpose of this utility model is at the deficiencies in the prior art, a kind of defrosting structure of air source hot pump water heater is provided, this defrosting structure can defrost effectively in conjunction with the characteristics of the Defrost mode of traditional circulation Defrost mode and hot-gas bypass, and makes system's safety and stability more.
For achieving the above object, the utility model is achieved through the following technical solutions: the defrosting structure of air source hot pump water heater, it comprises water side heat exchanger, the wind side heat exchanger of band blower fan, second magnetic valve, cross valve, compressor and gas-liquid separator, the E interface of described cross valve connects the import of water side heat exchanger, the outlet of water side heat exchanger connects the import of wind side heat exchanger by second magnetic valve, the outlet of wind side heat exchanger connects the C interface of cross valve, the S interface of cross valve connects the import of gas-liquid separator, the outlet of gas-liquid separator connects the air entry of compressor, the exhaust outlet of compressor connects the D interface of cross valve, also comprise defrosting logic control element and hot-gas bypass defrosting structure, described hot-gas bypass defrosting structure comprises first magnetic valve, one end of first magnetic valve connects the exhaust outlet of compressor, and the other end of first magnetic valve connects the import of wind side heat exchanger; Described defrosting logic control element is electrically connected blower fan, cross valve, compressor, second magnetic valve and first magnetic valve.
Described second magnetic valve is a check valve, and the import of second magnetic valve connects the outlet of water side heat exchanger, and the outlet of second magnetic valve connects the import of wind side heat exchanger.
Also comprise first capillary, first end capillaceous connects the import of wind side heat exchanger, and first other end capillaceous connects the outlet of second magnetic valve and an end of first magnetic valve simultaneously.
Be connected with second capillary between the outlet of the import of described second magnetic valve and water side heat exchanger.
Be connected with filter between the outlet of described second capillary and water side heat exchanger.
The utility model beneficial effect is: the defrosting structure of air source hot pump water heater described in the utility model, comprise defrosting logic control element and hot-gas bypass defrosting structure, described hot-gas bypass defrosting structure comprises first magnetic valve, one end of first magnetic valve connects the exhaust outlet of compressor, and the other end of first magnetic valve connects the import of wind side heat exchanger; Described defrosting logic control element is electrically connected blower fan, cross valve, compressor, second magnetic valve and first magnetic valve; Its by compressor, cross valve, air side heat exchanger, water-side heat and second magnetic valve and etc. form the systemic circulation loop, and between the import of the exhaust outlet of compressor and wind side heat exchanger, be provided with special defrosting bypass circulation by first solenoid control; When defrosting, under the control of defrosting logic control element, the work of defrosting bypass circulation, adopt the Defrost mode of hot-gas bypass to defrost earlier, the logic control element that defrosts then adopts traditional circulation Defrost mode again according to defrosting effect, so, can defrost effectively, and make system's safety and stability more in conjunction with the characteristics of the Defrost mode of hot-gas bypass and traditional circulation Defrost mode.
Description of drawings:
Fig. 1 is a fundamental diagram of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Embodiment, as shown in Figure 1, the defrosting structure of air source hot pump water heater, it comprises water side heat exchanger 1, the wind side heat exchanger 10 of band blower fan 9, second magnetic valve 4, cross valve 8, compressor 7, gas-liquid separator 6, first capillary 11, defrosting logic control element and hot-gas bypass defrosting structure, the E interface of described cross valve 8 connects the import of water side heat exchanger 1, the outlet of water side heat exchanger 1 connects the import of wind side heat exchanger 10 by second magnetic valve 4, the outlet of wind side heat exchanger 10 connects the C interface of cross valve 8, the S interface of cross valve 8 connects the import of gas-liquid separator 6, the outlet of gas-liquid separator 6 connects the air entry of compressor 7, and the exhaust outlet of compressor 7 connects the D interface of cross valve 8; Described hot-gas bypass defrosting structure comprises that an end of first magnetic valve, 5, the first magnetic valves 5 connects the exhaust outlet of compressor 7, and the other end of first magnetic valve 5 connects the import of wind side heat exchanger 10; Described defrosting logic control element is electrically connected blower fan 9, cross valve 8, compressor 7, second magnetic valve 4 and first magnetic valve 5; Described second magnetic valve 4 is a check valve, and the import of second magnetic valve 4 connects the outlet of water side heat exchanger 1, and the outlet of second magnetic valve 4 connects the import of wind side heat exchanger 10; First capillary 11 is connected between the end of the outlet of the import of wind side heat exchanger 10 and second magnetic valve 4 and first magnetic valve 5.
During work, when air source hot pump water heater ran on heating condition, at this moment water side heat exchanger 1 became condenser, and wind side heat exchanger 10 becomes evaporimeter.The low-temperature low-pressure refrigerant that flows out from 10 outlets of wind side heat exchanger enters gas-liquid separator 6 through the C interface and the S interface of cross valve 8, after isolating liquid, cold-producing medium is sucked the gas that is collapsed into HTHP by compressor 7 and hesitates out, gas advances the 1 heat release condensation of water inlet side heat exchanger (at this moment through the D interface and the E interface of cross valve 8, water in the water side heat exchanger 1 is heated). become supercooled liquid, supercooled liquid becomes the low-temp low-pressure two-phase fluid after the 11 resistance step-downs of first capillary. and enter the 10 evaporation heat absorptions of wind side heat exchanger, enter next circulation from the 10 outlet outflows of wind side heat exchanger again.
After when air source hot pump water heater carries out heating condition, reaching the defrosting condition, under the control of defrosting logic control element, carry out the Defrost mode of hot-gas bypass, be specially, first magnetic valve 5 must be established by cable and open, stop blower fan 9 runnings simultaneously, second magnetic valve 4 cuts out, cold-producing medium becomes high temperature and high pressure gas after compressing through compressor 7, enter air side heat exchanger 10 by bypass line through first magnetic valve 5 and first capillary 11, and defrost, return-air enters gas-liquid separator 6 from the outlet of air side heat exchanger 10 through the C interface and the S interface of cross valve 8 again, is back to compressor 7 then and enters next circulation.When satisfying the defrosting exit criteria, second magnetic valve 4 is opened, and blower fan 9 is opened, and closes first magnetic valve 5 simultaneously, then enters the hot water circuit pattern of normal heating condition.
When Defrost mode week after date, when remarkable, then under the control of defrosting logic control element, carry out traditional circulation Defrost mode as if the defrosting effect of unit through several hot-gas bypass.Stop compressor 7 and blower fan 9 earlier, cross valve 8, close first magnetic valve 5, open second magnetic valve 4, start compressor 7 then and carry out traditional circulation Defrost mode, after compressing through compressor 7, cold-producing medium becomes the gas of HTHP, D interface and C interface through cross valve 8 enter air side heat exchanger 10, defrost, liquid after the defrosting through the 11 throttling step-downs of first capillary after, enter water-side heat 1 from second magnetic valve 4 and carry out heat exchange, E interface and S interface through cross valve 8 enters gas-liquid separator 6 again, and is back to compressor 7, when satisfying the defrosting exit criteria, stop compressor 7, cross valve 8 power down enter the hot water circuit pattern of normal heating condition.
In above-mentioned defrost process, under the control of defrosting logic control element, before several defrosting cycles adopt the Defrost mode of hot-gas bypass to defrost, begin to adopt traditional circulation Defrost mode when which defrosting cycle according to the defrosting effect decision unit of unit then.Whenever carrying out once traditional circulation Defrost mode is a combination defrosting cycle; Whenever carry out once making up the defrosting cycle zero clearing behind traditional circulation Defrost mode, defrost from the Defrost mode that adopts hot-gas bypass again.This combination Defrost mode combines the characteristics of the Defrost mode and the traditional circulation Defrost mode of hot-gas bypass, can defrost effectively, and make system's safety and stability more.
In the present embodiment, be connected with second capillary 3 between the outlet of the import of described second magnetic valve 4 and water side heat exchanger 1, be connected with filter 2 between the outlet of described second capillary 3 and water side heat exchanger 1.Second capillary 3 provides the step-down resistance, and filter 2 is mainly used in the separating of machine oil of cold-producing medium and compressor 7, to guarantee the heat exchange efficiency of heat exchanger.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. the defrosting structure of air source hot pump water heater, it comprises water side heat exchanger (1), the wind side heat exchanger (10) of band blower fan (9), second magnetic valve (4), cross valve (8), compressor (7) and gas-liquid separator (6), the E interface of described cross valve (8) connects the import of water side heat exchanger (1), the outlet of water side heat exchanger (1) connects the import of wind side heat exchanger (10) by second magnetic valve (4), the outlet of wind side heat exchanger (10) connects the C interface of cross valve (8), the S interface of cross valve (8) connects the import of gas-liquid separator (6), the outlet of gas-liquid separator (6) connects the air entry of compressor (7), the exhaust outlet of compressor (7) connects the D interface of cross valve (8), it is characterized in that: also comprise defrosting logic control element and hot-gas bypass defrosting structure, described hot-gas bypass defrosting structure comprises first magnetic valve (5), one end of first magnetic valve (5) connects the exhaust outlet of compressor (7), and the other end of first magnetic valve (5) connects the import of wind side heat exchanger (10); Described defrosting logic control element is electrically connected blower fan (9), cross valve (8), compressor (7), second magnetic valve (4) and first magnetic valve (5).
2. the defrosting structure of air source hot pump water heater according to claim 1, it is characterized in that: described second magnetic valve (4) is a check valve, the import of second magnetic valve (4) connects the outlet of water side heat exchanger (1), and the outlet of second magnetic valve (4) connects the import of wind side heat exchanger (10).
3. the defrosting structure of air source hot pump water heater according to claim 2, it is characterized in that: also comprise first capillary (11), one end of first capillary (11) connects the import of wind side heat exchanger (10), and the other end of first capillary (11) connects the outlet of second magnetic valve (4) and an end of first magnetic valve (5) simultaneously.
4. the defrosting structure of air source hot pump water heater according to claim 3 is characterized in that: be connected with second capillary (3) between the outlet of the import of described second magnetic valve (4) and water side heat exchanger (1).
5. the defrosting structure of air source hot pump water heater according to claim 4 is characterized in that: be connected with filter (2) between the outlet of described second capillary (3) and water side heat exchanger (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920194419XU CN201488418U (en) | 2009-09-09 | 2009-09-09 | Defrosting structure of air source heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920194419XU CN201488418U (en) | 2009-09-09 | 2009-09-09 | Defrosting structure of air source heat pump water heater |
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| CN201488418U true CN201488418U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920194419XU Expired - Fee Related CN201488418U (en) | 2009-09-09 | 2009-09-09 | Defrosting structure of air source heat pump water heater |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878736A (en) * | 2012-10-29 | 2013-01-16 | 姜益强 | Air source heat pump continuous heat supply defrosting system |
| CN102997415A (en) * | 2012-12-19 | 2013-03-27 | 深圳麦克维尔空调有限公司 | Air-source heat pump water heater |
| CN104482651A (en) * | 2014-12-31 | 2015-04-01 | 昆山台佳机电有限公司 | Air source heat pump water heating unit and defrosting control method thereof |
| CN104654685A (en) * | 2013-11-19 | 2015-05-27 | 美的集团股份有限公司 | Defrosting control method and device for heat pump system |
| CN107461962A (en) * | 2017-08-17 | 2017-12-12 | 天津大学 | Air source heat pump defrosting system and method based on image procossing and hot-gas bypass |
| CN112781236A (en) * | 2020-08-13 | 2021-05-11 | 青岛海尔新能源电器有限公司 | Water heater fan control method and water heater |
| CN115183499A (en) * | 2022-06-21 | 2022-10-14 | 青岛海尔空调电子有限公司 | Heat pump type drying system and defrosting method for same |
-
2009
- 2009-09-09 CN CN200920194419XU patent/CN201488418U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878736A (en) * | 2012-10-29 | 2013-01-16 | 姜益强 | Air source heat pump continuous heat supply defrosting system |
| CN102997415A (en) * | 2012-12-19 | 2013-03-27 | 深圳麦克维尔空调有限公司 | Air-source heat pump water heater |
| CN104654685A (en) * | 2013-11-19 | 2015-05-27 | 美的集团股份有限公司 | Defrosting control method and device for heat pump system |
| CN104654685B (en) * | 2013-11-19 | 2017-06-06 | 美的集团股份有限公司 | The defrosting control method and device of heat pump |
| CN104482651A (en) * | 2014-12-31 | 2015-04-01 | 昆山台佳机电有限公司 | Air source heat pump water heating unit and defrosting control method thereof |
| CN104482651B (en) * | 2014-12-31 | 2018-06-15 | 昆山台佳机电有限公司 | A kind of air friction drag and its defrosting control method |
| CN107461962A (en) * | 2017-08-17 | 2017-12-12 | 天津大学 | Air source heat pump defrosting system and method based on image procossing and hot-gas bypass |
| CN112781236A (en) * | 2020-08-13 | 2021-05-11 | 青岛海尔新能源电器有限公司 | Water heater fan control method and water heater |
| CN115183499A (en) * | 2022-06-21 | 2022-10-14 | 青岛海尔空调电子有限公司 | Heat pump type drying system and defrosting method for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130909 |