CN211953254U - Heat pump water heater capable of automatically defrosting - Google Patents
Heat pump water heater capable of automatically defrosting Download PDFInfo
- Publication number
- CN211953254U CN211953254U CN201922300089.4U CN201922300089U CN211953254U CN 211953254 U CN211953254 U CN 211953254U CN 201922300089 U CN201922300089 U CN 201922300089U CN 211953254 U CN211953254 U CN 211953254U
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- Prior art keywords
- heat absorption
- water tank
- bin
- heat
- pipe
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000010257 thawing Methods 0.000 title claims description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 43
- 239000003507 refrigerant Substances 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
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Abstract
The utility model discloses a heat pump water heater that can defrost by oneself. Comprises an outdoor unit and a water tank; the outdoor unit comprises a shell, and the shell is divided into a heat absorption bin and a compression bin by a partition plate; the bottom of the heat absorption bin is provided with an air inlet, and the side wall of the heat absorption bin is provided with an air outlet; an exhaust fan is arranged in the heat absorption bin and close to the exhaust hole, a heat absorption fin is arranged behind the exhaust fan, a refrigerant pipe is hung on the heat absorption fin, the outlet end of the refrigerant pipe is connected with the inlet end of a compressor in the compression bin, the inlet end of the refrigerant pipe is connected with a throttle valve, the outlet end of the compressor is connected with a condensing coil arranged in a water tank, and the condensing coil is connected with the throttle valve; a heating pipe is also arranged in the water tank; the heat absorption fins are vertically provided with S-shaped water pipes in a penetrating mode, the inlet ends of the S-shaped water pipes are connected with the bottom of the water tank through one-way valves, and the outlet ends of the S-shaped water pipes are connected with the upper portion of the water tank through circulating pumps. The utility model discloses can avoid the evaporimeter heat absorption fin to frost, cause the condition that heat absorption efficiency descends.
Description
Technical Field
The utility model relates to an air can the equipment field, in particular to heat pump water heater that can defrost by oneself.
Background
The air energy water heater adopts the reverse Carnot principle, absorbs heat in the air, transfers the heat to water in a heat exchange mode, and realizes the recycling of heat in the air. The air energy water heater mainly comprises an external unit and a water tank. The outdoor unit mainly comprises an evaporator, a compressor, a throttle valve and a fan, and is formed by four circulation processes of refrigerant isothermal evaporation, refrigerant steam constant-entropy compression, refrigerant isobaric cooling and refrigerant liquid constant-entropy expansion of refrigerants in a refrigerant pipe. When the air conditioner works, low-temperature heat energy in air is absorbed by the evaporator, refrigerant in the evaporator exchanges heat with the low-temperature heat energy and is evaporated isothermally to form refrigerant steam, the refrigerant steam is sucked by the compressor and compressed into high-temperature and high-pressure refrigerant gas to enter the condenser for cooling, heat carried by the refrigerant and cold water are exchanged in the cooling process, and finally the refrigerant returns to the evaporator after completing constant entropy expansion in the throttling valve to repeat the above circulation, so that the heat energy is transferred to the cold water by utilizing an air source to heat the cold water. However, because the outdoor unit is located outdoors, the temperature in winter is too low, frost is easily formed on the device in the outdoor unit, particularly on the heat absorption fins, gaps among the heat absorption fins are blocked by the frost, the whole evaporator can be frozen into ice blocks after the unit works for a long time, the energy consumption is increased, and the heat absorption efficiency is rapidly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat pump water heater that can defrost by oneself. The utility model discloses can avoid the evaporimeter heat absorption fin to frost, cause the condition that heat absorption efficiency descends.
The technical scheme of the utility model: a heat pump water heater capable of defrosting automatically comprises an outer machine and a water tank; the outdoor unit comprises a shell, and the shell is divided into a heat absorption bin and a compression bin by a partition plate; the bottom of the heat absorption bin is provided with an air inlet, and the side wall of the heat absorption bin is provided with an air outlet; an exhaust fan is arranged in the heat absorption bin and close to the exhaust hole, a heat absorption fin is arranged behind the exhaust fan, a refrigerant pipe is hung on the heat absorption fin, the outlet end of the refrigerant pipe is connected with the inlet end of a compressor in the compression bin, the inlet end of the refrigerant pipe is connected with a throttle valve, the outlet end of the compressor is connected with a condensing coil arranged in a water tank, and the condensing coil is connected with the throttle valve; a heating pipe is also arranged in the water tank; the heat absorption fins are vertically provided with S-shaped water pipes in a penetrating mode, the inlet ends of the S-shaped water pipes are connected with the bottom of the water tank through one-way valves, and the outlet ends of the S-shaped water pipes are connected with the upper portion of the water tank through circulating pumps.
In the heat pump water heater capable of defrosting automatically, the inner wall of the water tank is provided with the heat insulation layer.
The utility model has the advantages that: compared with the prior art, the heat absorption fin of the utility model is vertically provided with the S-shaped water pipe, the inlet end of the S-shaped water pipe is connected with the bottom of the water tank through the one-way valve, and the outlet end of the S-shaped water pipe is connected with the upper part of the water tank through the circulating pump; when defrosting is carried out, hot water in the water tank can be circulated to the heat absorption fins by only starting the circulating pump and the directional valve, so that defrosting is carried out, and the defrosting device is simple in structure and convenient to use; through this structure, avoid the evaporimeter heat absorption fin to frost, cause the condition that heat absorption efficiency descends.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals:
1-outdoor unit, 2-water tank, 3-compression bin, 4-exhaust hole, 5-exhaust fan, 6-heat absorption fin, 7-refrigerant pipe, 8-compressor, 9-throttle valve, 10-condensation coil pipe, 11-heating pipe, 12-S-shaped water pipe, 13-one-way valve, 14-circulating pump, 15-heat insulation layer, 16-heat absorption bin and 17-air inlet hole.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
The embodiment of the utility model provides a: a heat pump water heater capable of defrosting automatically is shown in figure 1 and comprises an outer machine 1 and a water tank 2; the outdoor unit 1 comprises a shell 1, and the shell 1 is divided into a heat absorption bin 16 and a compression bin 3 by a partition plate 2; the bottom of the heat absorption bin 16 is provided with an air inlet 17, and the side wall is provided with an exhaust hole 4; an exhaust fan 5 is arranged in the heat absorption bin 16 and close to the exhaust hole 4, a heat absorption fin 6 is arranged behind the exhaust fan 5, a refrigerant pipe 7 is coiled on the heat absorption fin 6, the outlet end of the refrigerant pipe 7 is connected with the inlet end of a compressor 8 in the compression bin 3, the inlet end of the refrigerant pipe 7 is connected with a throttle valve 9, the outlet end of the compressor 8 is connected with a condensing coil 10 arranged in the water tank 2, and the condensing coil 10 is connected with the throttle valve 9; a heating pipe 11 is also arranged in the water tank 2; the heat absorption fin 6 is vertically provided with an S-shaped water pipe 12, the inlet end of the S-shaped water pipe 12 is connected with the bottom of the water tank 2 through a one-way valve 13, and the outlet end of the S-shaped water pipe 12 is connected with the upper part of the water tank 2 through a circulating pump 14.
When the air conditioner works, the air is sucked into the heat absorption bin 16 by the exhaust fan 5, the heat absorption fins 6 absorb heat in the air to evaporate a refrigerant in the refrigerant pipe 7, then the refrigerant enters the compressor 8 to be compressed into high-temperature high-pressure steam, then the steam enters the condensation coil pipe 10 in the water tank to perform heat exchange with water, the heat-exchanged refrigerant is subjected to the throttling valve 9, is condensed into liquid in the throttling valve 9, and then enters the refrigerant pipe 7 through the capillary action for recycling. During defrosting, the circulation pump 14 and the check valve 13 are opened. Hot water in the water tank circulates in the S-shaped water pipe 12 to remove frost on the heat absorption fin 6, and the circulated water enters the water tank again, so that the defrosting can be realized, and water is not wasted. Meanwhile, the inlet end of the S-shaped water pipe 12 is connected with the bottom of the water tank 2, and the outlet end of the S-shaped water pipe is arranged at the upper part of the water tank, so that air is prevented from being mixed in during circulation, and the defrosting effect is prevented from being influenced.
The inner wall of the water tank 2 is provided with an insulating layer 15.
Claims (2)
1. The utility model provides a heat pump water heater that can defrost by oneself which characterized in that: comprises an outdoor unit (1) and a water tank (2); the outdoor unit (1) comprises a shell, and the shell is divided into a heat absorption bin (16) and a compression bin (3) by a partition plate; the bottom of the heat absorption bin (16) is provided with an air inlet (17), and the side wall of the heat absorption bin is provided with an exhaust hole (4); an exhaust fan (5) is arranged in the heat absorption bin (16) close to the exhaust hole (4), a heat absorption fin (6) is arranged behind the exhaust fan (5), a refrigerant pipe (7) is coiled on the heat absorption fin (6), the outlet end of the refrigerant pipe (7) is connected with the inlet end of a compressor (8) in the compression bin (3), the inlet end of the refrigerant pipe (7) is connected with a throttle valve (9), the outlet end of the compressor (8) is connected with a condensing coil (10) arranged in the water tank (2), and the condensing coil (10) is connected with the throttle valve (9); a heating pipe (11) is also arranged in the water tank (2); the heat absorption fin (6) is vertically penetrated with an S-shaped water pipe (12), the inlet end of the S-shaped water pipe (12) is connected with the bottom of the water tank (2) through a one-way valve (13), and the outlet end of the S-shaped water pipe (12) is connected with the upper part of the water tank (2) through a circulating pump (14).
2. The self-defrosting heat pump water heater according to claim 1, wherein: and a heat-insulating layer (15) is arranged on the inner wall of the water tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300089.4U CN211953254U (en) | 2019-12-19 | 2019-12-19 | Heat pump water heater capable of automatically defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300089.4U CN211953254U (en) | 2019-12-19 | 2019-12-19 | Heat pump water heater capable of automatically defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211953254U true CN211953254U (en) | 2020-11-17 |
Family
ID=73176545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922300089.4U Expired - Fee Related CN211953254U (en) | 2019-12-19 | 2019-12-19 | Heat pump water heater capable of automatically defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211953254U (en) |
-
2019
- 2019-12-19 CN CN201922300089.4U patent/CN211953254U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |