CN216694116U - Non-stop defrosting system of clean heat energy auxiliary air source heat pump - Google Patents
Non-stop defrosting system of clean heat energy auxiliary air source heat pump Download PDFInfo
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- CN216694116U CN216694116U CN202123039847.5U CN202123039847U CN216694116U CN 216694116 U CN216694116 U CN 216694116U CN 202123039847 U CN202123039847 U CN 202123039847U CN 216694116 U CN216694116 U CN 216694116U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
本实用新型公开一种清洁热能辅助空气源热泵不停机化霜系统，包括太阳能水箱、室内换热器和热泵机体，室内换热器上设有换热进口和换热出口,太阳能水箱上设有水循环进口和水循环出口，所述热泵机体包括压缩机、制热毛细管、翅片换热器、壳管式换热器和制冷毛细管。本实用新型系统结构简单，可以满足用户三季热水需求，同时冬季可以充分利用太阳能低温热量，使空气源热泵化霜时不停机，用户舒适性大大改善。
The utility model discloses a non-stop defrosting system for a clean heat energy-assisted air source heat pump, which comprises a solar water tank, an indoor heat exchanger and a heat pump body. The indoor heat exchanger is provided with a heat exchange inlet and a heat exchange outlet, and the solar water tank is provided with Water circulation inlet and water circulation outlet, the heat pump body includes a compressor, a heating capillary, a fin heat exchanger, a shell and tube heat exchanger and a cooling capillary. The system of the utility model is simple in structure, can meet the user's demand for hot water in three seasons, and can fully utilize the low-temperature heat of solar energy in winter, so that the air source heat pump does not stop when defrosting, and the comfort of the user is greatly improved.
Description
Technical Field
The utility model relates to the technical field of heat utilization, in particular to a non-stop defrosting system of a clean heat energy auxiliary air source heat pump.
Background
The air source heat pump is a novel heating product which is commonly used at present, has low operation cost and wide application range, is used throughout the year in a temperature range from minus 35 ℃ to 45 ℃, can be normally used in severe weather such as cloudy days, rain and snow and the like and in winter and night, and is not influenced by the environment.
The air source heat pump has the defect that the problem of frosting is easily caused, and particularly in high-humidity areas such as the middle part of the Yangtze river, frequent frosting can seriously affect the use requirements of users.
The existing modes for solving the frosting problem of the air source heat pump mainly comprise shutdown defrosting or reverse cycle defrosting, and the methods can influence the heating requirement of users.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art and influencing the practical use, the utility model provides a clean heat energy auxiliary air source heat pump non-stop defrosting system which is reliable in performance, high in energy efficiency ratio and free of stopping defrosting so as to solve the defects in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a defrosting system without shutdown of a clean heat energy auxiliary air source heat pump is characterized in that: comprises a solar water tank, an indoor heat exchanger and a heat pump body,
the indoor heat exchanger is provided with a heat exchange inlet and a heat exchange outlet, the solar water tank is provided with a water circulation inlet and a water circulation outlet,
the heat pump machine body comprises a compressor, a heating capillary tube, a fin heat exchanger, a shell and tube heat exchanger and a refrigerating capillary tube;
one end of the refrigeration capillary is connected with a heat exchange outlet of the indoor heat exchanger;
the outlet of the compressor is connected with a first pipeline, a second pipeline and a third pipeline through a four-way valve, the inlet of the compressor is connected with a compression loop, a second electromagnetic valve F2 is arranged on the compression loop, the other end of the second pipeline is communicated with the compression loop, and the other end of the first pipeline is communicated with a heat exchange inlet of the indoor heat exchanger;
the third pipeline is communicated with the other end of the refrigeration capillary tube, a first electromagnetic valve F1 and a fourth electromagnetic valve F4 are arranged on the third pipeline, the fin heat exchanger, the heating capillary tube and the shell-and-tube heat exchanger are sequentially arranged on the third pipeline between the first electromagnetic valve F1 and the fourth electromagnetic valve F4, and the fin heat exchanger is arranged close to the fourth electromagnetic valve F4; the tail end of the compression loop is arranged on a third pipeline between the first electromagnetic valve F1 and the shell-and-tube heat exchanger;
a fourth pipeline is connected to the third pipeline in parallel, one end of the fourth pipeline is connected with a fourth electromagnetic valve F4, the other end of the fourth pipeline is connected with a refrigeration capillary, and a third electromagnetic valve F3 is arranged on the fourth pipeline.
The indoor heat exchanger is any one of indoor heat exchangers disclosed in the prior art and suitable for being used by an air source heat pump unit.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that a circulation inlet and a circulation outlet are arranged on the shell-and-tube heat exchanger, the circulation inlet and the circulation outlet are connected with a water circulation outlet and a water circulation inlet of a solar water tank through a circulation pipeline, an expansion tank is arranged on the circulation pipeline flowing to the circulation inlet end of the shell-and-tube heat exchanger, and a circulation pump is arranged on the circulation pipeline flowing out of the circulation outlet end of the shell-and-tube heat exchanger.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that the solar water tank is provided with an inner container and an outer shell, a heat exchange coil and electric heating are arranged in the inner container, a water circulation outlet and a water circulation inlet of the solar water tank are communicated with two ends of the heat exchange coil, and a water inlet and outlet pipeline is also connected to the inner container.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that the refrigeration capillary is connected with a one-way valve in parallel.
The technical problem to be solved by the present invention can be further solved by the following technical scheme, wherein two ends of the heating capillary are connected in parallel with a circulation branch pipe, and the circulation branch pipe is provided with a fifth electromagnetic valve F5.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that a refrigerant is filled in a compressor of the system, and a low-temperature antifreeze solution is arranged in a shell-and-tube heat exchanger and has a heating mode, a refrigerating mode and a defrosting mode;
the heating mode is as follows: the compressor is started, F1 and F4 are started, F2, F3 and F5 are closed, after the refrigerant is compressed by the compressor, the refrigerant releases heat in the indoor heat exchanger, flows to the shell-and-tube heat exchanger through the one-way valve, releases heat to the low-temperature antifreeze in the shell-and-tube heat exchanger to store partial heat, throttles through the heating capillary tube, absorbs the heat in the air in the outdoor heat exchanger, and returns to the compressor;
the refrigeration mode is as follows: the compressor is started, F1, F4 and F5 are started, F2 and F3 are closed, the refrigerant is compressed by the compressor and then is radiated to the outdoor in the fin heat exchanger, partial heat is released by the shell-and-tube heat exchanger, and the refrigerant is throttled by the refrigeration capillary tube and then is released to the indoor heat exchanger to return to the compressor; when the temperature of the low-temperature antifreeze liquid in the shell-and-tube heat exchanger is 5-10 ℃ higher than that of the solar water tank, the circulating pump is started, and the fan of the fin heat exchanger is decelerated; when the temperature of the low-temperature antifreeze liquid in the tubular heat exchanger is less than or equal to the temperature of the solar water tank by 5-10 ℃, the circulating pump is closed, and the fan of the fin heat exchanger normally operates;
the defrosting mode is as follows: the method comprises the steps that a compressor is started, F2 and F3 are started, F1, F4 and F5 are closed, a refrigerant is compressed by the compressor, releases heat in an indoor heat exchanger, flows to a fin heat exchanger through a one-way valve to defrost the fin heat exchanger, is throttled by a heating capillary tube, absorbs and stores heat and heat of a solar water tank in a shell-and-tube heat exchanger, and returns to the compressor; when the temperature of the low-temperature antifreeze solution in the shell-and-tube heat exchanger is lower than 15-25 ℃, the circulating pump is started, and when the temperature of the solar water tank is lower than 25 ℃, the electric heating is started and the temperature is heated to 35 ℃.
In the system, a refrigerant is filled in a compressor, a shell-and-tube heat exchanger is internally provided with low-temperature antifreeze, the refrigerant enters a tube to exchange heat with the low-temperature antifreeze in a shell, in a defrosting mode, the shell-and-tube heat exchanger is changed into an evaporator, waste heat is generated after indoor heat release to defrost, the heat of solar energy is absorbed from the shell-and-tube heat exchanger, the solar energy is indirectly used, part of stored energy is used for defrosting, and therefore defrosting is achieved without stopping, and heating requirements of users are not influenced while defrosting.
In the heating mode, after heat is released indoors, a part of heat is stored in the shell-and-tube heat exchanger, so that the refrigerant is supercooled, more heat is absorbed from outdoor air, and the integral heating capacity of the unit is improved. In the refrigeration mode, according to actual conditions, if the temperature of the solar water tank is low in continuous rainy days, the temperature of the solar water tank can be reduced by matching with the wind speed reduction of a fan of the fin heat exchanger, and partial heat is reserved and recycled to the solar water tank through the shell and tube heat exchanger.
The solar energy is reasonably utilized to clean energy, the function of the solar energy in winter is fully exerted, and even if the water temperature is low and cannot be used as domestic hot water, the low-level heat can be utilized for defrosting. The shell-and-tube heat exchanger provides a supercooling process for the refrigerant, improves the energy efficiency ratio of the original system, can perform partial heat recovery in a refrigeration mode, and improves the energy utilization efficiency.
Compared with the prior art, the system disclosed by the utility model is simple in structure, can meet the three-season hot water requirement of a user, and can fully utilize solar low-temperature heat in winter, so that the air source heat pump does not stop during defrosting, and the comfort of the user is greatly improved.
Drawings
The utility model is described in detail below with reference to the following figures and detailed description:
FIG. 1 is a system diagram of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
Referring to fig. 1, a defrosting system without shutdown of a clean heat energy auxiliary air source heat pump comprises a solar water tank 9, an indoor heat exchanger 1 and a heat pump body, wherein the solar water tank 9 can be a direct-insert solar water heater water tank 9; the indoor heat exchanger 1 is provided with a heat exchange inlet and a heat exchange outlet, and the solar water tank 9 is provided with a water circulation inlet and a water circulation outlet.
The heat pump machine body comprises a compressor 6, a heating capillary tube 15, a fin heat exchanger 7, a shell-and-tube heat exchanger 12 and a refrigerating capillary tube 14;
one end of the refrigeration capillary tube 14 is connected with a heat exchange outlet of the indoor heat exchanger 1; the refrigeration capillary 14 is connected with a check valve 13 in parallel.
The outlet of the compressor 6 is connected with a first pipeline 3, a second pipeline 2 and a third pipeline 5 through a four-way valve 4, the inlet of the compressor 6 is connected with a compression loop 16, the compression loop 16 is provided with a second electromagnetic valve F2, the other end of the second pipeline 2 is communicated with the compression loop 16, and the other end of the first pipeline 3 is communicated with the heat exchange inlet of the indoor heat exchanger 1;
the third pipeline 5 is communicated with the other end of the refrigeration capillary 14, a first solenoid valve F1 and a fourth solenoid valve F4 are arranged on the third pipeline 5, the fin heat exchanger 7, the heating capillary 15 and the shell-and-tube heat exchanger 12 are sequentially arranged on the third pipeline 5 between the first solenoid valve F1 and the fourth solenoid valve F4, and the fin heat exchanger 7 is arranged close to the fourth solenoid valve F4; the end of the compression loop 16 is disposed in the third conduit 5 between the first solenoid valve F1 and the shell and tube heat exchanger 12;
a fourth pipeline 8 is connected in parallel with the third pipeline 5, one end of the fourth pipeline 8 is connected with a fourth electromagnetic valve F4, the other end of the fourth pipeline 8 is connected with the refrigeration capillary 14, and a third electromagnetic valve F3 is arranged on the fourth pipeline 8.
And two ends of the heating capillary 15 are connected in parallel with a circulation branch pipe, and the circulation branch pipe is provided with a fifth electromagnetic valve F5.
The shell and tube heat exchanger 12 is provided with a circulation inlet and a circulation outlet, the circulation inlet and the circulation outlet are connected with a water circulation outlet and a water circulation inlet of the solar water tank 9 through a circulation pipeline, an expansion tank 11 is arranged on the circulation pipeline flowing to the circulation inlet end of the shell and tube heat exchanger 12, and a circulation pump 10 is arranged on the circulation pipeline flowing out of the circulation outlet end of the shell and tube heat exchanger 12.
The solar water tank 9 is provided with an inner container and a shell, a heat exchange coil and an electric heater are arranged in the inner container, a water circulation outlet and a water circulation inlet of the solar water tank 9 are communicated with two ends of the heat exchange coil, and a water inlet and outlet pipeline is connected to the inner container. The water inlet and outlet pipeline is provided with a water supply electromagnetic valve and is connected with a water using pipeline.
The system comprises a compressor 6, a refrigerant, a shell-and-tube heat exchanger 12, a low-temperature antifreeze and a heating mode, a refrigerating mode and a defrosting mode, wherein the low-temperature antifreeze is arranged in the shell-and-tube heat exchanger;
the heating mode is as follows: the compressor 6 is started, the F1 and the F4 are started, the F2, the F3 and the F5 are closed, after the refrigerant is compressed by the compressor 6, the heat of the indoor heat exchanger 1 is released, the refrigerant flows to the shell-and-tube heat exchanger 12 through the check valve 13, the refrigerant releases heat to the low-temperature antifreeze solution in the shell-and-tube heat exchanger 12 to store partial heat, the refrigerant is throttled by the heating capillary tube 15, the heat in the air is absorbed in the outdoor heat exchanger, and the refrigerant returns to the compressor 6;
the refrigeration mode is as follows: the compressor 6 is started, the F1, the F4 and the F5 are started, the F2 and the F3 are closed, the refrigerant is compressed by the compressor 6, then is radiated to the outdoor in the fin heat exchanger 7, releases partial heat through the shell-and-tube heat exchanger 12, throttles by the refrigeration capillary tube 14, then is delivered to the indoor heat exchanger 1 to release cold, and then returns to the compressor 6; when the temperature of the low-temperature antifreeze solution in the shell-and-tube heat exchanger 12 is 5 ℃ higher than that of the solar water tank 9, the circulating pump 10 is started, and the fan of the fin heat exchanger 7 is decelerated; when the temperature of the low-temperature antifreeze solution in the tubular heat exchanger is less than or equal to 5 ℃ of the temperature of the solar water tank 9, the circulating pump 10 is closed, and the fan of the fin heat exchanger 7 operates normally;
the defrosting mode is as follows: the compressor 6 is started, the F2 and the F3 are started, the F1, the F4 and the F5 are closed, after the refrigerant is compressed by the compressor 6, the heat of the indoor heat exchanger 1 is released, the refrigerant flows to the fin heat exchanger 7 through the check valve 13 to defrost the fin heat exchanger 7, the refrigerant is throttled by the heating capillary tube 15, and the heat is absorbed and stored in the shell-and-tube heat exchanger 12 and the heat of the solar water tank 9 and returns to the compressor 6; when the temperature of the low-temperature antifreeze in the shell-and-tube heat exchanger 12 is lower than 20 ℃, the circulation pump 10 is started. In the defrosting mode, when the temperature of the solar water tank 9 is lower than 25 ℃, the electric heating is started, and the electric heating operation is stopped when the temperature is heated to 35 ℃.
In the system, a refrigerant is filled in a compressor 6, a low-temperature antifreezing solution is arranged in a shell-and-tube heat exchanger 12, the refrigerant enters a tube to exchange heat with the low-temperature antifreezing solution in the shell, in a defrosting mode, the shell-and-tube heat exchanger 12 becomes an evaporator, waste heat is used for defrosting after indoor heat release, the heat of solar energy is absorbed from the shell-and-tube heat exchanger 12, the solar energy is indirectly used, part of stored energy is used for defrosting, and therefore defrosting without stopping is achieved, and the heating requirement of a user is not influenced at all when defrosting is achieved.
In the heating mode, after the indoor heat is released, a part of heat is stored in the shell-and-tube heat exchanger 12, so that the refrigerant is supercooled, more heat is absorbed from outdoor air, and the integral heating capacity of the unit is improved. In the refrigeration mode, according to actual conditions, if the weather is overcast and rainy continuously, the water temperature of the solar water tank 9 is low, the wind speed of a fan of the fin heat exchanger 7 can be reduced, and the like, and part of heat is reserved and recycled to the solar water tank 9 through the shell and tube heat exchanger 12.
The solar energy is reasonably utilized to clean energy, the function of the solar energy in winter is fully exerted, and even if the water temperature is low and cannot be used as domestic hot water, the low-level heat can be utilized for defrosting. The shell-and-tube heat exchanger provides a supercooling process for the refrigerant, improves the energy efficiency ratio of the original system, can perform partial heat recovery in a refrigeration mode, and improves the energy utilization efficiency. The solar energy heat pump can meet the requirement of three-season hot water of a user, and can fully utilize the solar energy low-temperature heat in winter, so that the air source heat pump does not stop when defrosting is carried out, and the comfort of the user is greatly improved.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a frost system is not shut down to clean heat energy auxiliary air source heat pump which characterized in that:
comprises a solar water tank, an indoor heat exchanger and a heat pump body,
the indoor heat exchanger is provided with a heat exchange inlet and a heat exchange outlet, the solar water tank is provided with a water circulation inlet and a water circulation outlet,
the heat pump machine body comprises a compressor, a heating capillary tube, a fin heat exchanger, a shell and tube heat exchanger and a refrigerating capillary tube;
one end of the refrigeration capillary is connected with a heat exchange outlet of the indoor heat exchanger;
the outlet of the compressor is connected with a first pipeline, a second pipeline and a third pipeline through a four-way valve, the inlet of the compressor is connected with a compression loop, a second electromagnetic valve F2 is arranged on the compression loop, the other end of the second pipeline is communicated with the compression loop, and the other end of the first pipeline is communicated with a heat exchange inlet of the indoor heat exchanger;
the third pipeline is communicated with the other end of the refrigeration capillary tube, a first electromagnetic valve F1 and a fourth electromagnetic valve F4 are arranged on the third pipeline, the fin heat exchanger, the heating capillary tube and the shell-and-tube heat exchanger are sequentially arranged on the third pipeline between the first electromagnetic valve F1 and the fourth electromagnetic valve F4, and the fin heat exchanger is arranged close to the fourth electromagnetic valve F4; the tail end of the compression loop is arranged on a third pipeline between the first electromagnetic valve F1 and the shell-and-tube heat exchanger;
a fourth pipeline is connected in parallel with the third pipeline, one end of the fourth pipeline is connected with a fourth electromagnetic valve F4, the other end of the fourth pipeline is connected with a refrigeration capillary, and a third electromagnetic valve F3 is arranged on the fourth pipeline.
2. The system of claim 1, wherein the defrosting system is not stopped by a clean heat assisted air source heat pump, and comprises: the shell and tube heat exchanger is provided with a circulation inlet and a circulation outlet, the circulation inlet and the circulation outlet are connected with a water circulation outlet and a water circulation inlet of the solar water tank through a circulation pipeline, an expansion tank is arranged on the circulation pipeline flowing to the circulation inlet end of the shell and tube heat exchanger, and a circulation pump is arranged on the circulation pipeline flowing out of the circulation outlet end of the shell and tube heat exchanger.
3. The system of claim 2, wherein the defrosting system is not stopped by the heat energy auxiliary air source heat pump, and comprises: the solar water tank is provided with an inner container and a shell, a heat exchange coil and an electric heater are arranged in the inner container, a water circulation outlet and a water circulation inlet of the solar water tank are communicated with two ends of the heat exchange coil, and a water inlet and outlet pipeline is connected to the inner container.
4. The system of claim 1, wherein the defrosting system is not stopped by a clean heat assisted air source heat pump, and comprises: the refrigeration capillary is connected with a one-way valve in parallel.
5. The system of claim 4, wherein the defrosting system is not stopped by the heat energy auxiliary air source heat pump, and comprises: and two ends of the heating capillary tube are connected in parallel with a circulating branch tube, and the circulating branch tube is provided with a fifth electromagnetic valve F5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039847.5U CN216694116U (en) | 2021-12-06 | 2021-12-06 | Non-stop defrosting system of clean heat energy auxiliary air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039847.5U CN216694116U (en) | 2021-12-06 | 2021-12-06 | Non-stop defrosting system of clean heat energy auxiliary air source heat pump |
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| Publication Number | Publication Date |
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| CN216694116U true CN216694116U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123039847.5U Withdrawn - After Issue CN216694116U (en) | 2021-12-06 | 2021-12-06 | Non-stop defrosting system of clean heat energy auxiliary air source heat pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087814A (en) * | 2021-12-06 | 2022-02-25 | 日出东方控股股份有限公司 | Non-stop defrosting system of clean heat energy auxiliary air source heat pump |
| CN115540029A (en) * | 2022-08-12 | 2022-12-30 | 青岛海尔空调器有限总公司 | Heating circulation system, heating equipment and control method |
-
2021
- 2021-12-06 CN CN202123039847.5U patent/CN216694116U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087814A (en) * | 2021-12-06 | 2022-02-25 | 日出东方控股股份有限公司 | Non-stop defrosting system of clean heat energy auxiliary air source heat pump |
| CN114087814B (en) * | 2021-12-06 | 2025-05-02 | 日出东方控股股份有限公司 | A clean thermal energy assisted air source heat pump non-stop defrosting system |
| CN115540029A (en) * | 2022-08-12 | 2022-12-30 | 青岛海尔空调器有限总公司 | Heating circulation system, heating equipment and control method |
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