CN201425394Y - Intelligent defrosting device for heat pump water heater - Google Patents
Intelligent defrosting device for heat pump water heater Download PDFInfo
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- CN201425394Y CN201425394Y CN2008202058435U CN200820205843U CN201425394Y CN 201425394 Y CN201425394 Y CN 201425394Y CN 2008202058435 U CN2008202058435 U CN 2008202058435U CN 200820205843 U CN200820205843 U CN 200820205843U CN 201425394 Y CN201425394 Y CN 201425394Y
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- valve
- heat exchanger
- compressor
- defrosting
- evaporimeter
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to the heat pump water heater technology field, in particular to an intelligent defrosting device for heat pump water heater, including the compressor, liquid storage tank, four-way valve, heat exchanger, thermal expansion valve and evaporator. The compressor is connected with the liquid storage tank, the liquid storage tank is communicated with the four-way valve, the four-way valve is communicated respectively to the compressor, heat exchanger and the evaporator, the heat exchanger is connected with the thermal expansion valve, the thermal expansion valve is connected with the evaporator. The utility model also comprises a check valve. The check valve is arranged in parallel with the thermal expansion valve. The check valve is communicated with the evaporator and the heat exchanger. After the four-way valve changes the direction and defrosts, the directional flow in the check valve substantially shortens the defrosting time, which does not lower the power ofthe compressor in the defrosting conditions, does not affect the defrosting capacity, and realizes the complete defrosting; the utility model does not adopt the electrothermal defrosting, so the power is saved, which substantially lowers the defrosting costs, eliminates the electric leakage risk, and is safe to utilize.
Description
Technical field:
The utility model relates to the heat pump water-heating machine technical field, particularly a kind of heat pump water-heating machine intelligent defrosting device.
Background technology:
Heat pump water-heating machine is emerging in recent years a kind of health hot water generator, wherein is most widely used with air heat source.But when the air-source heat pump hot water environment that temperature is lower in the winter time moved down, evaporator surface generated one deck frost layer easily, along with the thickening of frost layer, caused the heat exchange efficiency reduction, so air-source heat pump hot water need possess the defrosting measure.Cross valve and the reverse defrost of heating power expansion valve are mainly adopted in the defrosting of air source hot pump water heater at present, hot-gas bypass defrosting, electrical heating defrosting mode.
There is the unclean defective of defrosting in preceding two kinds of Defrost modes, main following points:
At first heat exchanger stops heat exchange during defrost, and the expansion valve flow descends rapidly and causes underfed, and the defrosting heat reduces; Secondly after the defrosting beginning, the thermal expansion valve opening reduces, and the heat exchange in the heat-exchange system produces an attenuation process, is easy to generate low-voltage variation, has prolonged defrosting time, and heat exchanging device system produces compression shock; Heat exchanger is out of service, and the origin of heat of defrosting is mainly electric power that compressor consumes and amount of stored heat two parts of compressor housing.Compare with standard heat exchange operating mode, compressor power output under defrosting operating condition reduces, and causes the defrosting ability drop, might produce the incomplete problem of defrosting.
And last a kind of electrical heating defrosting mode, the then potential safety hazard that power consumption is big and existence is leaked electricity.Mainly show as: heating wire began heating when defrost began, general heating wire power height, and energy consumption is big, causes the waste of resource; Frost flows after changing into water everywhere in the defrost process, and the electric shock incident may take place, and uses dangerous.
The utility model content:
The purpose of this utility model is to provide a kind of safe in utilization, the effective heat pump water-heating machine of defrost intelligent defrosting device at the deficiencies in the prior art.
For achieving the above object, the utility model adopts following technical scheme:
A kind of heat pump water-heating machine intelligent defrosting device, comprise compressor, fluid reservoir, cross valve, heat exchanger, heating power expansion valve and evaporimeter, compressor is connected with fluid reservoir, fluid reservoir is communicated with cross valve, and cross valve is communicated with compressor, heat exchanger, evaporimeter respectively, and heat exchanger is connected with heating power expansion valve, heating power expansion valve is connected with evaporimeter, also comprise check valve, check valve and heating power expansion valve are arranged in parallel, and check valve is communicated with evaporimeter and heat exchanger.
Described check valve is orientated evaporimeter and flows to heat exchanger.
Described cross valve comprises first inlet, second port, the 3rd outlet, four-way mouth.
Described fluid reservoir is connected with first inlet of cross valve, and second port of cross valve is connected with heat exchanger, and evaporimeter is connected with the four-way mouth of cross valve, and the 3rd outlet of cross valve is connected with compressor.
Described fluid reservoir is connected with first inlet of cross valve, and the four-way mouth of cross valve is connected with evaporimeter, and heat exchanger is connected with second port of cross valve, and the 3rd outlet of cross valve is connected with compressor.
The utility model beneficial effect is: the utility model comprises compressor, fluid reservoir, cross valve, heat exchanger, heating power expansion valve and evaporimeter, compressor is connected with fluid reservoir, fluid reservoir is communicated with cross valve, cross valve respectively with compressor, heat exchanger, evaporimeter is communicated with, heat exchanger is connected with heating power expansion valve, heating power expansion valve is connected with evaporimeter, also comprise check valve, check valve and heating power expansion valve are arranged in parallel, check valve is communicated with evaporimeter and heat exchanger, after the cross valve commutation defrost, and through the check valve directed flow, can not cause underfed, reduce the defrost heat owing to the heating power expansion valve flow descends rapidly; And after the defrosting beginning, can not reduce yet, produce heat-exchange system heat exchange decay because of the thermal expansion valve opening; Reduce the defrost time greatly, can not reduce compressor power output under the defrost operating mode, can not influence the defrost ability, reached complete defrost; Need not adopt electricity-heated defrosting, consume a large amount of electric weight, greatly reduce the defrost cost, eliminate the potential safety hazard of electric leakage, safe in utilization.Check valve is orientated evaporimeter and flows to heat exchanger, guarantees that the MEDIA FLOW path after the defrost is unimpeded, does not influence the defrost effect.Cross valve comprises first inlet, second port, the 3rd outlet, four-way mouth, and first inlet of cross valve is guaranteed to become the medium of HTHP to flow from fluid reservoir through compressor compresses; The 3rd outlet of cross valve is guaranteed to return compressor through the high-temperature low-pressure MEDIA FLOW that heat exchange is flowed through after the evaporimeter heat absorption; guarantee also that simultaneously the MEDIA FLOW of the low-temp low-pressure after the defrost returns compressor; second port and four-way mouth have guaranteed that the circulation path of medium is smooth and easy, improve operating efficiency of the present utility model.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
In order further to describe the utility model, illustrate with specific embodiment below in conjunction with accompanying drawing:
See Fig. 1, a kind of heat pump water-heating machine intelligent defrosting device, comprise compressor 1, fluid reservoir 2, cross valve 3, heat exchanger 4, heating power expansion valve 5 and evaporimeter 7, compressor 1 is connected with fluid reservoir 2, fluid reservoir 2 is communicated with cross valve 3, cross valve 3 is communicated with compressor 1, heat exchanger 4, evaporimeter 7 respectively, heat exchanger 4 is connected with heating power expansion valve 5, heating power expansion valve 5 is connected with evaporimeter 7, also comprise check valve 6, check valve 6 is arranged in parallel with heating power expansion valve 5, and check valve 6 is communicated with evaporimeter 7 and heat exchanger 4.
Described check valve 6 is orientated evaporimeter 7 and flows to heat exchanger 4.
Described cross valve 3 comprises first inlet, 31, second port 32, the 3rd outlet 33, four-way mouth 34.
Operation principle of the present utility model:
Control system control compressor 1 carries out heat supply and compression with medium, make medium become the medium of HTHP, the medium of HTHP enters fluid reservoir 2 from compressor 1, again from fluid reservoir 2 flow through cross valve 3 first the inlet 31, flow to heat exchanger 4 through second port 32, after the heat exchange, the medium of HTHP becomes the medium of low-temp low-pressure, the medium of low-temp low-pressure advanced heating power expansion valve 5 evaporimeter 7 of flowing through, after evaporimeter 7 heat absorptions, the four-way mouth 34 of the cross valve 3 of flowing through flows back to compressor 1 from the 3rd outlet 33 of cross valve 3 again, so circulation reaches the effect that heats.When moving under the environment that temperature is lower in the winter time.Evaporimeter 7 surfaces generate one deck frost layer easily, along with the thickening of frost layer, cause heat exchange efficiency to reduce, and need defrost.When detecting frost layer arrival certain thickness, control system begins defrost, during defrost, the medium reverse flow, the medium of HTHP enters first inlet 31 of cross valve 3 from fluid reservoir 2, four-way mouth 34 from cross valve 3 flows out again, the evaporimeter 7 of then flowing through, the medium of HTHP enters check valve 6 with the white melting layer of evaporimeter 7, the heat exchanger 4 of flowing through, enter second port 32 of cross valve 3 again, flow back to compressor 1, finish defrost from the 3rd outlet 33.
Certainly, the embodiment of the above, it is better embodiment of the present utility model, be not to limit the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and are included in the utility model claim.
Claims (4)
1, a kind of heat pump water-heating machine intelligent defrosting device, comprise compressor (1), fluid reservoir (2), cross valve (3), heat exchanger (4), heating power expansion valve (5) and evaporimeter (7), compressor (1) is connected with fluid reservoir (2), fluid reservoir (2) is communicated with cross valve (3), cross valve (3) respectively with compressor (1), heat exchanger (4), evaporimeter (7) is communicated with, heat exchanger (4) is connected with heating power expansion valve (5), heating power expansion valve (5) is connected with evaporimeter (7), it is characterized in that: also comprise check valve (6), check valve (6) is arranged in parallel with heating power expansion valve (5), and check valve (6) is communicated with evaporimeter (7) and heat exchanger (4).
2, a kind of heat pump water-heating machine intelligent defrosting device according to claim 1, it is characterized in that: described check valve (6) is orientated evaporimeter (7) and flows to heat exchanger (4).
3, a kind of heat pump water-heating machine intelligent defrosting device according to claim 1 is characterized in that: described cross valve (3) comprises first inlet (31), second port (32), the 3rd outlet (33), four-way mouth (34).
4, a kind of heat pump water-heating machine intelligent defrosting device according to claim 3, it is characterized in that: described fluid reservoir (2) is connected with first inlet (31) of cross valve (3), second port (32) of cross valve (3) is connected with heat exchanger (4), evaporimeter (7) is connected with the four-way mouth (34) of cross valve (3), and the 3rd outlet (33) of cross valve (3) is connected with compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202058435U CN201425394Y (en) | 2008-12-23 | 2008-12-23 | Intelligent defrosting device for heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202058435U CN201425394Y (en) | 2008-12-23 | 2008-12-23 | Intelligent defrosting device for heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425394Y true CN201425394Y (en) | 2010-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202058435U Expired - Fee Related CN201425394Y (en) | 2008-12-23 | 2008-12-23 | Intelligent defrosting device for heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425394Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869864A (en) * | 2017-06-09 | 2018-04-03 | 南京平日制冷科技有限公司 | One kind decompression removes defrosting system |
| CN108224837A (en) * | 2017-12-19 | 2018-06-29 | 青岛海尔空调电子有限公司 | Air-conditioner system |
-
2008
- 2008-12-23 CN CN2008202058435U patent/CN201425394Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869864A (en) * | 2017-06-09 | 2018-04-03 | 南京平日制冷科技有限公司 | One kind decompression removes defrosting system |
| CN108224837A (en) * | 2017-12-19 | 2018-06-29 | 青岛海尔空调电子有限公司 | Air-conditioner system |
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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: 20100317 Termination date: 20111223 |