CN210399316U - Air-supplementing enthalpy-increasing air source heat pump - Google Patents
Air-supplementing enthalpy-increasing air source heat pump Download PDFInfo
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- CN210399316U CN210399316U CN201920813911.4U CN201920813911U CN210399316U CN 210399316 U CN210399316 U CN 210399316U CN 201920813911 U CN201920813911 U CN 201920813911U CN 210399316 U CN210399316 U CN 210399316U
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Abstract
The application discloses an air-supplementing and enthalpy-increasing air source heat pump, wherein an air source heat pump comprises a four-way valve, a compressor, a first expansion valve, a second expansion valve, an air-supplementing and enthalpy-increasing heat exchanger, a first heat exchanger and a second heat exchanger; the four-way valve and the air-supplying enthalpy-increasing heat exchanger are connected to two ends of the compressor; one end of the second expansion valve is connected with the air-supplementing enthalpy-increasing heat exchanger, and the other end of the second expansion valve is connected with the first one-way valve and the second one-way valve; one end of the first one-way valve is connected with the second expansion valve, and the other end of the first one-way valve is connected with the first heat exchanger; one end of the second one-way valve is connected with the second electronic expansion valve, and the other end of the second one-way valve is connected with the second heat exchanger. The air source heat pump can realize the functions of air supply and enthalpy increase under the refrigeration mode and the heating mode.
Description
Technical Field
The utility model relates to a heating, air conditioning equipment technical field, concretely relates to tonifying qi increases enthalpy air source heat pump.
Background
When the air source heat pump operates in a heating mode, low-grade heat energy in ambient air is absorbed, and the pressure and the temperature are improved and then utilized. Since the heat source of the air source heat pump is ambient air, it is greatly affected by the environment. Under the condition that a certain water outlet temperature needs to be met, the lower the ambient temperature is, the lower the heating efficiency of the air source heat pump is, the evaporation speed of a medium in the evaporator is slowed down along with the reduction of the ambient temperature, the evaporation capacity is reduced, the exhaust temperature of the compressor is increased, the lubrication of the compressor is poor, and the high-temperature protection and even the burning of the compressor are caused. When the air source heat pump operates in a refrigeration mode in summer, the condensing temperature is very high and exceeds the design standard under the working condition that the ambient temperature is higher than 38 ℃, and the compressor can give an alarm at high temperature and even burn out.
For example, the invention patent application No. 201811004465.9 provides a bi-directional air-make-up enthalpy heat pump system, comprising: the first one-way valve is connected in parallel with two ends of the first electronic expansion valve, and the conduction direction of the first one-way valve is opposite to the flow direction of a refrigerant when the air-supplementing enthalpy-increasing heat pump system operates in a first state; the second one-way valve is connected in parallel at two ends of the second electronic expansion valve, and the conduction direction of the second one-way valve is opposite to the flow direction of the refrigerant when the air-supplementing enthalpy-increasing heat pump system operates in the second state. The technical scheme solves the problem that the electronic expansion valve frequently acts in the air-supply enthalpy-increasing heat pump system which uses two electronic expansion valves for reversing cooling liquid in the related technology, but the two electronic expansion valves are used in an air-supply enthalpy-increasing loop, so that the loop is complex and the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model aims to provide a can both realize tonifying qi under refrigeration and the mode of heating and increase the tonifying qi enthalpy air source heat pump of enthalpy.
The utility model provides a technical scheme of problem is: the air source heat pump comprises a four-way valve, a compressor, a first expansion valve, a second expansion valve, an air-supplying enthalpy-increasing heat exchanger, a first heat exchanger and a second heat exchanger; the four-way valve and the air-supplying enthalpy-increasing heat exchanger are connected to two ends of the compressor; one end of the second expansion valve is connected with the air-supplementing enthalpy-increasing heat exchanger, and the other end of the second expansion valve is connected with the first one-way valve and the second one-way valve; one end of the first one-way valve is connected with the second expansion valve, and the other end of the first one-way valve is connected with the first heat exchanger; one end of the second one-way valve is connected with the second electronic expansion valve, and the other end of the second one-way valve is connected with the second heat exchanger; the compressor, the four-way valve, the first heat exchanger, the air-supply enthalpy-increasing heat exchanger and the second heat exchanger can form a first circulation loop, the second expansion valve and the first one-way valve can form a first air-supply enthalpy-increasing branch, and the conduction direction of the first one-way valve is the same as the flow direction of cooling liquid in the first circulation loop; the compressor, the four-way valve, the second heat exchanger, the air-supply enthalpy-increasing heat exchanger and the first heat exchanger can form a second circulation loop, the second expansion valve and the second one-way valve can form a second air-supply enthalpy-increasing loop, and the conduction direction of the second one-way valve is the same as the flow direction of cooling liquid in the second circulation loop.
Further, the first heat exchanger is a shell-and-tube heat exchanger, a plate heat exchanger or a double-tube heat exchanger.
Further, the second heat exchanger comprises a fin heat exchanger and a fan.
Compared with the prior art, the beneficial effects of the utility model are that: the design of the double one-way valve has simple and compact structure and high efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the air source heat pump of the present invention.
Description of reference numerals: 1-a compressor; 2-a first heat exchanger; 3-a second expansion valve; 4-a first one-way valve; 5-an enthalpy-increasing gas-supplying heat exchanger; 6-a second one-way valve; 7-a first expansion valve; 8-a second heat exchanger; 81-fin heat exchanger; 82-a fan; 9-four-way valve.
Detailed Description
As shown in fig. 1, the air source heat pump includes a four-way valve 9, a compressor 1, a first expansion valve 7, a second expansion valve 3, an air-supply enthalpy-increasing heat exchanger 5, a first heat exchanger 2 and a second heat exchanger 8; the four-way valve 9 and the air-supplementing enthalpy-increasing heat exchanger 5 are connected to two ends of the compressor 1; one end of the second expansion valve 3 is connected with the air-supplementing enthalpy-increasing heat exchanger 5, and the other end of the second expansion valve is connected with the first one-way valve 4 and the second one-way valve 6; one end of the first one-way valve 4 is connected with the second expansion valve 3, and the other end of the first one-way valve is connected with the first heat exchanger 2; one end of the second one-way valve 6 is connected with the second electronic expansion valve 3, and the other end of the second one-way valve is connected with the second heat exchanger 8; the compressor 1, the four-way valve 9, the first heat exchanger 2, the air-supply enthalpy-increasing heat exchanger 5 and the second heat exchanger 8 can form a first circulation loop, the second expansion valve 3 and the first one-way valve 4 can form a first air-supply enthalpy-increasing branch, and the conduction direction of the first one-way valve 4 is the same as the flow direction of cooling liquid in the first circulation loop; the compressor 1, the four-way valve 9, the second heat exchanger 8, the air-supply enthalpy-increasing heat exchanger 5 and the first heat exchanger 2 can form a second circulation loop, the second expansion valve 3 and the second one-way valve 6 can form a second air-supply enthalpy-increasing loop, and the conduction direction of the second one-way valve 6 is the same as the flow direction of cooling liquid in the second circulation loop.
Further, the first heat exchanger 2 is a shell-and-tube heat exchanger, a plate heat exchanger or a double-tube heat exchanger.
Further, the second heat exchanger 8 includes a fin heat exchanger 81 and a fan 82.
When the air conditioner is in a refrigerating state, a refrigerant is compressed by the compressor 1 and converted into high-temperature and high-pressure gas, enters the second heat exchanger 8, is changed into medium-temperature and high-pressure liquid after being cooled and released by the second heat exchanger 8, is changed into low-temperature and low-pressure liquid after passing through the first expansion valve 7, is changed into low-temperature and low-pressure gas after being cooled and absorbed by the first heat exchanger 2, passes through the four-way valve 9 and reaches the compressor 1, and then continues to circulate. In summer, along with the rise of the ambient temperature, the cooling liquid in the second heat exchanger 8 cannot be completely condensed, so that the exhaust temperature of the compressor 1 rises; when exhaust temperature reached the setting value, the liquid that second heat exchanger 8 came out got into second electronic expansion valve 3 (concrete control element is not the utility model discloses in the discussion scope), second electronic expansion valve 3 can increase the liquid supply volume, and the coolant liquid gets into compressor 1 through the evaporation of tonifying qi enthalpy-increasing heat exchanger 5, improves compressor 1 and breathes in the enthalpy moisture, reduces exhaust temperature.
When the heat pump is in a heating state, a refrigerant is compressed by the compressor 1 and converted into high-temperature and high-pressure gas, enters the first heat exchanger 2, is changed into medium-temperature and high-pressure liquid after being cooled and released by the first heat exchanger 2, is changed into low-temperature and low-pressure liquid after passing through the first expansion valve 7, is changed into low-temperature and low-pressure gas after being cooled and absorbed by the second heat exchanger 8, returns to the compressor 1 through the four-way valve 9, and then continues to circulate. In winter, along with the reduction of the ambient temperature, the evaporation capacity of the cooling liquid in the second heat exchanger 8 is reduced, the compression ratio of the compressor 1 is increased, and the exhaust temperature of the compressor 1 is increased; when exhaust temperature reached the setting value, the liquid that first heat exchanger 2 came out got into second electronic expansion valve 3 (concrete control element is not the utility model discloses in the discussion scope), second electronic expansion valve 3 can increase the liquid supply volume, and the coolant liquid gets into compressor 1 through the evaporation of tonifying qi enthalpy-increasing heat exchanger 5, improves compressor 1 enthalpy of breathing in moisture content, reduces exhaust temperature.
Claims (3)
1. The utility model provides a tonifying qi increases enthalpy air source heat pump which characterized in that: the system comprises a four-way valve, a compressor, a main expansion valve, an air-supplying enthalpy-increasing heat exchanger, a first heat exchanger, a second heat exchanger, a first one-way valve and a second one-way valve; the main expansion valves are connected in parallel at two ends of the compressor, the four-way valve, the first heat exchanger, the economizer and the second heat exchanger can form a first circulation loop, the first one-way valve is connected between the first heat exchanger and the economizer, and the conduction direction of the first one-way valve is the same as the flowing direction of cooling liquid in the first circulation loop; the compressor, the four-way valve, the second heat exchanger, the economizer and the first heat exchanger can form a second circulation loop, the second one-way valve is connected between the second heat exchanger and the economizer, and the conduction direction of the second one-way valve is the same as the flowing direction of cooling liquid in the second circulation loop.
2. The air-supplementing enthalpy-increasing air source heat pump according to claim 1, characterized in that: the first heat exchanger is a shell-and-tube heat exchanger.
3. The air-supplementing enthalpy-increasing air source heat pump according to claim 1, characterized in that: the second heat exchanger comprises a fin heat exchanger and a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813911.4U CN210399316U (en) | 2019-05-31 | 2019-05-31 | Air-supplementing enthalpy-increasing air source heat pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920813911.4U CN210399316U (en) | 2019-05-31 | 2019-05-31 | Air-supplementing enthalpy-increasing air source heat pump |
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| CN210399316U true CN210399316U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
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Effective date of registration: 20201020 Address after: 301802 west side of the intersection of Yangguang Avenue and yuaner Road, Jiuyuan Industrial Park, Baodi District, Tianjin Patentee after: Tianpu new energy technology (Tianjin) Co.,Ltd. Address before: 102612, No. 1, Pioneer Road, Luling industrial district, Beijing, Daxing District Patentee before: TIANPU NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |