CN113983525A - Heating system, control method, control device, heating equipment and storage medium - Google Patents
Heating system, control method, control device, heating equipment and storage medium Download PDFInfo
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- CN113983525A CN113983525A CN202111350516.5A CN202111350516A CN113983525A CN 113983525 A CN113983525 A CN 113983525A CN 202111350516 A CN202111350516 A CN 202111350516A CN 113983525 A CN113983525 A CN 113983525A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
- F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
- F24D11/0228—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with conventional heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1045—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump and solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/14—Solar energy
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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]
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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]
- Y02B30/12—Hot water central heating systems using heat pumps
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a heating system, a control method, a control device, heating equipment and a storage medium, which belong to the technical field of heating equipment and comprise the following steps: the solar heat storage system comprises a solar heat collector and an energy accumulator, the heat pump system comprises an evaporator, a compressor, a condenser and a throttling mechanism, the energy accumulator, the compressor, the condenser and the throttling mechanism form a water source heat pump system, and the working mode of the heat supply system comprises a heating mode, a heat storage mode and a heating and heat storage mode. The heat supply system provided by the invention overcomes the problem of poor adaptability caused by the limitation of air temperature of the traditional heat pump system, and can adopt different operation modes according to the actual temperature condition and the use requirement, so that the system is reasonably used and is more energy-saving.
Description
Technical Field
The invention relates to the technical field of heating equipment, in particular to a heating system, a control method, a control device, heating equipment and a storage medium.
Background
The air source heat pump is equipment for improving low-temperature heat energy in air into high-temperature heat energy and utilizing the high-temperature heat energy, and the air source heat pump has the characteristics of energy conservation, high efficiency, wide application range, environmental protection, no pollution and the like and can be seen by the public. The regional adaptability problem of the air source heat pump in northern areas at present is mainly solved with low-temperature adaptability, and the lower the outdoor air temperature is, the larger the building heat load is, but the worse the heating performance of the air source heat pump is. Therefore, the air source heat pump has a wide market value and is also limited by conditions such as regions and temperatures.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the air source heat pump in the prior art has poor heating performance due to the influence of temperature.
In order to solve the above technical problem, the present invention provides a heating system, including: the solar heat storage system, the air source heat pump system and the heating system are sequentially coupled and arranged, wherein the solar heat storage system comprises a solar heat collector and an energy accumulator, the air source heat pump system comprises an evaporator, a compressor, a condenser and a throttling mechanism, the energy accumulator enables the compressor, the condenser and the throttling mechanism to form the water source heat pump system, the working mode of the heating system comprises a heating mode, a heat storage mode and a heating heat storage mode, the heating system is in the heating mode, the air source heat pump system or the water source heat pump system is started, the heating system is in the heat storage mode, the solar heat storage system is started, the heating system is in the heating heat storage mode, the water source heat pump system and the solar heat storage system are started.
Optionally, the evaporator, the compressor, the condenser and the throttle mechanism are sequentially connected to form a first refrigerant circulation loop, a first switch valve is arranged on the first refrigerant circulation loop, the energy accumulator, the compressor, the condenser and the throttle mechanism are sequentially connected to form a second refrigerant circulation loop, and a second switch valve is arranged on the second refrigerant circulation loop, wherein when the air source heat pump system is started, the first switch valve is opened, the second switch valve is closed, when the water source heat pump system is started, the second switch valve is opened, and the first switch valve is closed.
Optionally, the heating system further comprises: the first circulating pipeline is communicated with the condenser, the throttling mechanism and the evaporator; the second circulating pipeline is communicated with the evaporator and the compressor; the first branch pipeline and the second branch pipeline are respectively communicated with the energy accumulator and the first circulating pipeline; the third branch pipeline is communicated with the first circulating pipeline and the second circulating pipeline; wherein the first on-off valve includes a first valve and a second valve disposed on the first circulation line, the second valve being downstream of the first valve; the second switching valve includes a third valve and a fourth valve, the third valve is disposed on the first branch line, and the fourth valve is disposed on the third branch line; the junction of the first circulation pipeline and the first branch pipeline is located at the upstream of the first valve, and the junction of the first circulation pipeline and the second branch pipeline and the third branch pipeline is located between the first valve and the second valve.
Optionally, the heating system includes a capillary tube radiation system and a first water pump, the first water pump is communicated with the capillary tube radiation system, the first water pump, the capillary tube radiation system are communicated with the condenser and form a water heating loop, and a third switch valve is arranged on the water heating loop.
The invention also provides a heat supply control method for controlling the heat supply system, which comprises the following steps: acquiring the temperature difference between the solar heat collector and the energy accumulator and the opening state of a thermal switch; and controlling the working mode of the heating system according to the temperature difference and the opening state of the thermal switch.
Optionally, the step of controlling the operation mode of the heating system according to the temperature difference and the heat-on state comprises: judging whether the temperature difference is larger than a preset temperature difference or not; when the temperature difference is larger than the preset temperature difference, judging whether the heat utilization switch is turned on or not; when the heat utilization switch is turned on, the solar heat storage system is controlled to be turned on, and one of the air source heat pump system and the water source heat pump system is controlled to be turned on and the other is controlled to be turned off; when the heat utilization switch is closed, the solar heat storage system is controlled to be started, and the air source heat pump system and the water source heat pump system are controlled to be closed; when the temperature difference is smaller than the preset temperature difference, judging whether a thermal switch is turned on or not; when the heat utilization switch is turned on, the solar heat storage system is controlled to be turned off, and one of the air source heat pump system and the water source heat pump system is controlled to be turned on and the other is controlled to be turned off; and when the heat utilization switch is closed, the solar heat storage system, the air source heat pump system and the water source heat pump system are controlled to be closed.
Optionally, the step of controlling one of the air source heat pump system and the water source heat pump system to be turned on and the other to be turned off when the hot switch is turned on comprises: judgment of TAir conditionerWhether or not greater than TStorage tankWherein, the T isAir conditionerIs the outdoor air temperature, said TStorage tankRefers to the temperature of water or ice in the accumulator; when said T isAir conditionerGreater than TStorage tankWhen the system is started, the air source heat pump system is controlled to be started, and the water source heat pump system is controlled to be closed; when said T isAir conditionerLess than or equal to TStorage tankThen, the T is judgedAir conditionerWhether the temperature is higher than a preset temperature or not; when said T isAir conditionerWhen the temperature is higher than the preset temperature, controlling the air source heat pump system to be started and controlling the water source heat pump system to be closed; when said T isAir conditionerAnd when the temperature is less than or equal to the preset temperature, controlling the air source heat pump system to be closed and controlling the water source heat pump system to be opened.
The invention provides a heat supply control device, comprising: the acquisition module is used for acquiring the temperature difference between the solar heat collector and the energy accumulator and the opening state of the thermal switch; and the control module is used for controlling the working mode of the heating system according to the temperature difference and the opening state of the thermal switch.
The present invention also provides a heating apparatus comprising: the heating system comprises at least one processor and a memory which is connected with the at least one processor in a communication mode, wherein the memory stores instructions which can be executed by the processor, and the instructions are executed by the at least one processor so as to enable the at least one processor to execute the heating control method.
The present invention also provides a storage medium having stored thereon computer instructions which, when executed by a processor, implement the heating control method described above.
The technical scheme of the invention has the following advantages:
1. according to the heat supply system provided by the invention, the water source heat pump system is formed by the energy accumulator, the compressor, the condenser and the throttling mechanism, the air source heat pump system is formed by the evaporator, the compressor, the condenser and the throttling mechanism, and the solar heat storage system is formed by the solar heat collector and the energy accumulator, so that the heat supply system can form three working modes, namely a heating mode, a heat storage mode and a heating and heat storage mode. Therefore, the heating system overcomes the problem that the traditional air source heat pump system is limited by air temperature to cause poor adaptability, and can adopt different operation modes according to actual temperature conditions and use requirements, so that the system is reasonably used and is more energy-saving.
2. The invention provides a heating system, which is characterized in that an air source heat pump system working circuit is formed by arranging a first refrigerant circulation circuit, a water source heat pump system working circuit is formed by arranging a second refrigerant circulation circuit, a first switch valve is arranged on the first refrigerant circulation circuit, a second switch valve is arranged on the second refrigerant circulation circuit, and the circulation of refrigerant in the first refrigerant circulation circuit or the second refrigerant circulation circuit is realized by selectively opening and closing the first switch valve and the second switch valve so as to select the working mode of the heating system.
3. According to the heating system provided by the invention, the first circulating pipeline and the second circulating pipeline are arranged to be communicated with the evaporator, the compressor and the condenser, and the first branch pipeline, the second branch pipeline and the third branch pipeline are arranged to be communicated with the energy accumulator, so that the arrangement of the pipelines is simplified, the normal use of the heating system is ensured, and meanwhile, the pipeline structure is simpler.
4. According to the heat supply system provided by the invention, the capillary tube radiation system is adopted for heat supply, and the water supply temperature required by the heat supply system is lower, so that the condensation temperature and the compression ratio of the air source heat pump system can be reduced, and the performance coefficient of the air source heat pump system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of an overall configuration of a heating system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an air source heat pump system for supplying heat according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a water source heat pump system for supplying heat according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of the solar heat storage system according to embodiment 1 of the present invention when collecting heat;
fig. 5 is a schematic structural diagram of the solar heat storage system for collecting heat and the water source heat pump system for supplying heat according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of a four-way reversing valve provided in embodiment 1 of the present invention;
fig. 7 is a schematic view of the overall structure of another heating system provided in embodiment 1 of the present invention;
fig. 8 is a flowchart of a heating control method according to embodiment 2 of the present invention.
Description of reference numerals:
10. a solar thermal storage system; 11. a solar heat collector; 12. an accumulator; 13. a second water pump; 14. a sixth valve; 15. a seventh valve; 16. a water tank; 20. an air source heat pump system; 21. an evaporator; 22. a compressor; 23. a condenser; 24. a gas-liquid separator; 25. a four-way reversing valve; 251. a first interface; 252. a second interface; 253. a third interface; 254. a fourth interface; 26. an expansion valve; 30. a heating system; 31. a capillary radiation system; 32. a first water pump; 33. a fifth valve; 40. a first circulation line; 41. a first valve; 42. a second valve; 50. a second circulation line; 60. a first branch line; 61. a third valve; 70. a second branch line; 80. a third branch line; 81. and a fourth valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
An embodiment of the heating system as shown in fig. 1 to 7, comprises: the solar heat storage system 10 comprises a solar heat collector 11 and an accumulator 12, the air source heat pump system 20 comprises an evaporator 21, a compressor 22, a condenser 23 and a throttling mechanism, and the accumulator 12, the compressor 22, the condenser 23 and the throttling mechanism form a water source heat pump system. The working modes of the heating system comprise a heating mode, a heat storage mode and a heating and heat storage mode. When the heating system is in a heating mode, the air source heat pump system 20 or the water source heat pump system is started; when the heating system is in the heat storage mode, the solar heat storage system 10 is started; when the heating system is in the heating and heat storage mode, the water source heat pump system and the solar heat storage system 10 are started.
In order to enhance the low-temperature adaptability of the air source heat pump system, the solar heat storage system can be used as an auxiliary heat source, and more importantly, the air source heat pump system and the phase change energy storage technology are coupled to actively store heat to supply heat to the building, namely, the phase change energy storage heat exchanger is used as a low-temperature heat source to change the running environment temperature of the evaporator, so that the regional adaptability of the air source heat pump is improved. The heating system can use solar energy to store heat to supply heat when the temperature of the outside air is low, and can supply heat through the heat stored in the energy accumulator 12 during the daytime and at night, namely, the water source heat pump system supplies heat. Therefore, the heating system overcomes the problem that the traditional air source heat pump system 20 is poor in adaptability due to the limitation of air temperature, different operation modes can be adopted according to actual temperature conditions and use requirements, the system is reasonably used and is more energy-saving, meanwhile, the solar heat storage system 10 is used in combination with the air source heat pump system 20, the temperature of an inner circulation medium of the solar heat collector 11 can be greatly reduced, and the heat collection efficiency of the solar device is improved.
As shown in fig. 1 to 5, the evaporator 21, the compressor 22, the condenser 23 and the throttling mechanism are sequentially connected to form a first refrigerant circulation circuit, a first switch valve is arranged on the first refrigerant circulation circuit, the energy accumulator 12, the compressor 22, the condenser 23 and the throttling mechanism are sequentially connected to form a second refrigerant circulation circuit, and a second switch valve is arranged on the second refrigerant circulation circuit, wherein when the air source heat pump system 20 is opened, the first switch valve is opened, the second switch valve is closed, when the water source heat pump system is opened, the second switch valve is opened, and the first switch valve is closed.
The working circuit of the air source heat pump system 20 is formed by providing a first refrigerant circulation circuit, the working circuit of the water source heat pump system is formed by providing a second refrigerant circulation circuit, a first switch valve is provided on the first refrigerant circulation circuit, a second switch valve is provided on the second refrigerant circulation circuit, and the refrigerant is circulated in the first refrigerant circulation circuit or the second refrigerant circulation circuit by selectively opening and closing the first switch valve and the second switch valve, so that the working mode of the heating system 30 is selected.
Specifically, in the present embodiment, as shown in fig. 1 to 5, the condenser 23, the throttle mechanism, and the evaporator 21 are communicated with each other through the first circulation line 40, the evaporator 21 and the compressor 22 are communicated with each other through the second circulation line 50, the first circulation line 40 and the accumulator 12 are communicated with each other through the first branch line 60 and the second branch line 70, and the third branch line 80 is further communicated with each other between the first circulation line 40 and the second circulation line 50. And, the first switching valve includes a first valve 41 and a second valve 42, and the first valve 41 and the second valve 42 are disposed on the first circulation line 40, and the second valve 42 is disposed downstream of the first valve 41; the second switching valve includes a third valve 61 and a fourth valve 81, and the third valve 61 is disposed on the first branch line 60, and the fourth valve 81 is disposed on the third branch line 80. The junction of the first circulation line 40 with the first branch line 60 is upstream of the first valve 41, and the junction of the first circulation line 40 with the second and third branch lines 70, 80 is between the first and second valves 41, 42.
By providing the first and second circulation pipes 40 and 50 to communicate the evaporator 21, the compressor 22, and the condenser 23, and providing the first, second, and third branch pipes 60, 70, and 80 to communicate the accumulator 12, the arrangement of the pipes is simplified, and the pipe structure is simpler while ensuring normal use of the heat supply system.
It is worth mentioning that, as shown in fig. 7, the pipes of the heating system may also be arranged in the following manner: a first branch line 60 is communicated between the first circulation line 40 and the accumulator 12, a second branch line 70 is communicated between the second circulation line 50 and the accumulator 12, a first valve 41 is arranged on the first circulation line 40, a third valve 61 is arranged on the first branch line 60, and the connection position of the first circulation line 40 and the first branch line 60 is positioned at the upstream of the first valve 41. When the air source heat pump system 20 is used for heating, the first valve 41 is opened, and the third valve 61 is closed; when the solar thermal storage system 10 is used for heating, the first valve 41 is closed and the third valve 61 is opened. The arrangement of the heat supply system pipeline further simplifies the arrangement quantity of the valves, and the structure is simpler.
In the present embodiment, as shown in fig. 1 to 5, the air-source heat pump system 20 further includes a gas-liquid separator 24, and the gas-liquid separator 24 is connected between the evaporator 21 and the compressor 22.
In the present embodiment, as shown in fig. 1 to 5, the air source heat pump system 20 further includes a four-way valve 25, the compressor 22 is connected to a first port 251 of the four-way valve 25, a second port 252 of the four-way valve 25 is connected to the condenser 23, the evaporator 21 is connected to a third port 253 of the four-way valve 25, the third port 253 of the four-way valve 25 is further communicated with the accumulator 12 through a fourth valve 81, a fourth port 254 of the four-way valve 25 is connected to the gas-liquid separator 24, the four-way valve 25 has an operating state, when the four-way valve 25 is in the operating state, the first port 251 and the second port 252 are communicated, and the third port 253 is communicated with the fourth port 254.
Of course, the four-way selector valve 25 may not be provided, and the space between the compressor 22 and the condenser 23, the space between the evaporator 21 and the gas-liquid separator 24, and the space between the accumulator 12 and the gas-liquid separator 24 may be directly connected by pipes.
In the present embodiment, as shown in fig. 1 to 5, the throttle mechanism is an expansion valve 26, and the expansion valve 26 is disposed on the first circulation line 40 and downstream of the condenser 23. In the present embodiment, the expansion valve 26 is a two-way electronic expansion valve.
In the present embodiment, as shown in fig. 1 to 5, the heating system 30 includes a capillary tube radiation system 31 and a first water pump 32, the capillary tube radiation system 31 and the condenser 23 are communicated to form a water heating loop, and a third on/off valve is disposed on the water heating loop. Because the required water supply temperature of the capillary radiation system 31 is low, the condensation temperature and the compression ratio of the heat pump unit can be reduced by adopting the capillary radiation system 31, and thus the performance coefficient and the energy efficiency of the air source heat pump system are improved.
Specifically, as shown in fig. 1 to 5, a plurality of capillary radiation systems 31 are provided, the third on-off valve includes a plurality of fifth valves 33, and the plurality of capillary radiation systems 31 are arranged in parallel and are arranged in one-to-one correspondence with the plurality of fifth valves 33. In this embodiment, the fifth valve 33 is a flow adjustable valve.
The capillary tube radiation system 31 is adopted for supplying heat, and the water supply temperature required by the heat supply system is lower, so that the condensation temperature and the compression ratio of the air source heat pump system 20 can be reduced, and the performance coefficient of the air source heat pump system 20 is improved.
Further, the heating system 30 adopts a ceiling radiation heating form to replace the conventional radiator heating or ground coil pipe ground radiation heating form, because the capillary ceiling radiation heating water supply temperature is lower by 35 ℃, the radiator system water supply temperature is generally 75 ℃, and the ground radiation heating system 30 water supply temperature is generally 50 ℃. In comparison, the capillary tube ceiling radiant heating system 30 is adopted, the air source heat pump system 20 or the water source heat pump system can meet the heating requirement only by providing lower heat, that is to say, lower condensation temperature can be adopted, so that the performance of the air source heat pump system 20 and the water source heat pump system is greatly facilitated, and further more energy is saved.
In the present embodiment, as shown in fig. 1 to 5, the solar thermal storage system 10 further includes a second water pump 13 and a water tank 16, the second water pump 13, the solar thermal collector 11, the water tank 16 and the accumulator 12 are sequentially connected to form a water thermal storage loop, and a fourth switch valve is disposed on the water thermal storage loop. Specifically, the fourth switching valve includes a sixth valve 14 and a seventh valve 15, and the seventh valve 15 is a flow-adjustable valve.
The energy accumulator 12 adopts a low-temperature heat storage mode in which water is used as a phase-change material, and can increase the evaporation temperature of the air source heat pump at a lower air temperature, thereby achieving the purposes of increasing the performance of the heat pump, saving energy and expanding the regional adaptability of the air source heat pump.
Example 2
One embodiment of the heating control method shown in fig. 8 includes the following steps:
step S10: the temperature difference between the solar collector 11 and the accumulator 12 and the on state of the thermal switch are obtained.
In step S10, a first temperature sensor is disposed on the side of the solar thermal collector 11, a second temperature sensor is disposed on the accumulator 12, when the temperature difference detected by the first temperature sensor and the second temperature sensor is greater than the preset temperature difference, the second water pump 13 is turned on, the solar thermal storage system 10 is operated, and when the temperature difference detected by the first temperature sensor and the second temperature sensor is less than the preset temperature, the second water pump 13 is turned off, and the solar thermal storage system 10 is stopped. The controller may acquire a temperature difference detected by the first temperature sensor and the second temperature sensor, and control the state of the second water pump 13, that is, the operation state of the solar thermal storage system 10, according to the temperature difference.
In step S10, the hot switch is a switch of the heating system 30, and may be turned on if the user needs heating or turned off if the user does not need heating. Specifically, in this embodiment, the thermal switch may be a switch of the first water pump 32, and when heating is required, the switch of the first water pump 32 is turned on, so that the water flow circulates in the heating system 30 to dissipate heat.
Step S20: and controlling the working mode of the heating system according to the temperature difference and the opening state of the thermal switch.
Can adopt different operational modes according to solar energy heat accumulation state and user demand for the system is rationally used, and is more energy-conserving, and simultaneously, solar energy heat accumulation system 10 unites air source heat pump system 20 to use, can greatly reduced solar collector 11 inner loop medium temperature, improves solar device's collecting efficiency.
Wherein, step S20 includes:
step S21: judging whether the temperature difference between the solar thermal collector 11 and the energy accumulator 12 is greater than a preset temperature difference or not;
step S22: when the temperature difference is larger than the preset temperature difference, judging whether a thermal switch is turned on or not;
when the hot switch is turned on, the solar heat storage system 10 is controlled to be turned on, and one of the air source heat pump system 20 and the water source heat pump system is controlled to be turned on and the other is controlled to be turned off; when the hot switch is turned off, the solar heat storage system 10 is controlled to be turned on, and the air source heat pump system 20 and the water source heat pump system are controlled to be turned off;
step S23: when the temperature difference is smaller than the preset illumination intensity, judging whether a thermal switch is turned on or not;
when the hot switch is turned on, the solar heat storage system 10 is controlled to be turned off, and one of the air source heat pump system 20 and the water source heat pump system is controlled to be turned on and the other is controlled to be turned off; when the hot switch is turned off, the solar heat storage system 10, the air source heat pump system 20 and the water source heat pump system are controlled to be turned off.
Under the condition that the sunlight irradiates, the solar heat storage system 10 is used for collecting heat and storing the heat, the heat collected by the solar heat storage system 10 can be used as a heat source for heating, and the redundant heat can be stored so as to be conveniently used as the heat source at low temperature at night.
In step S22 and step S23, when the hot switch is turned on, one of the air source heat pump system 20 and the water source heat pump system is controlled to be turned on, and the other is controlled to be turned off, which specifically includes:
judgment of TAir conditionerWhether or not greater than TStorage tankWherein, TAir conditionerIs the outdoor air temperature, TStorage tankRefers to the temperature of the water or ice in the accumulator 12;
when T isAir conditionerGreater than TStorage tankWhen the water source heat pump system is started, the air source heat pump system 20 is controlled to be started, and the water source heat pump system is controlled to be closed;
when T isAir conditionerLess than or equal to TStorage tankTime, judge TAir conditionerWhether the temperature is higher than a preset temperature or not;
when T isAir conditionerWhen the temperature is higher than the preset temperature, controlling the air source heat pump system 20 to be started and controlling the water source heat pump system to be closed;
when T isAir conditionerAnd when the temperature is lower than or equal to the preset temperature, controlling the air source heat pump system 20 to be closed and controlling the water source heat pump system to be opened.
When the outdoor air temperature is low, the heating performance of heating by using the air source is poor, so that ice water can be used as a phase-change energy-storage low-temperature heat source to improve the performance of an air source heat pump system using air as a heat source. The phase-change energy accumulator is additionally arranged in the air source heat pump system to be used as an evaporator in the air source heat pump system, so that a heating system of the air source heat pump system taking refrigerant as a circulating working medium is coupled with a solar heat storage system taking water as a circulating medium, namely, an original air source heat pump is changed into a water source heat pump, and therefore, the running performance of the air source heat pump at low outdoor temperature (for example, in northern areas of China) is improved.
In this example, the preset temperature is-10 ℃. When the outdoor air temperature is lower than minus 10 ℃, the operation performance of the air source heat pump system is greatly reduced, so that the minus 10 ℃ is taken as a consideration point for switching operation of the air source heat pump system and the water source heat pump system.
When the heating system of embodiment 1 is used for heating, the opening and closing of each valve are switched according to the outdoor solar radiation change condition and the outdoor environment temperature change, the energy accumulator serving as an evaporator is in an indoor heating mode, and the working mode of the heating system specifically comprises the following modes:
the first working mode is a heating mode for heating by adopting an air source heat pump system: when the indoor needs to be heated, and when the outdoor air temperature is more than-10 ℃, the outdoor air source can be fully utilized for heating. As shown in fig. 2, the first valve 41, the second valve 42, and the fifth valve 33 are opened, the third valve 61 and the fourth valve 81 are closed, and the first water pump 32 is opened. The high-temperature high-pressure gaseous refrigerant output by the compressor 22 enters the condenser 23 through the four-way reversing valve 25 to heat the heating system 30 of the capillary tube radiation system 31, the low-temperature low-pressure refrigerant which is output from the condenser 23 and is decompressed and throttled by the expansion valve 26 enters the evaporator 21, the refrigerant absorbs heat in outdoor air and enters the gas-liquid separator 24 through the four-way reversing valve 25, and the refrigerant returns to the compressor 22 after gas-liquid separation, and the cycle is repeated.
The second working mode is a heat storage mode: when the room is not heated and there is light (daytime), as shown in fig. 4, the sixth valve 14 and the seventh valve 15 are opened, the remaining valves are closed, and the second water pump 13 is opened. The ice in the accumulator 12 absorbs the heat collected by the solar collector 11 to melt into water, and stores the heat in the accumulator 12 in the form of water, which circulates back and forth in a water heat storage loop to be taken from the accumulator 12 when needed.
The third working mode is a heating mode for heating by adopting a water source heat pump system: when heating is required indoors and the outdoor air temperature is less than or equal to-10 ℃ and no light is applied (at night), heating is performed using the heat stored in the accumulator 12 to improve COP during heating. As shown in fig. 3, the first valve 41, the second valve 42, the sixth valve 14, and the seventh valve 15 are closed, the third valve 61, the fourth valve 81, and the fifth valve 33 are opened, and the first water pump 32 is opened. The high-temperature high-pressure gaseous refrigerant output by the compressor 22 enters the condenser 23 through the four-way reversing valve 25, the gaseous refrigerant in the condenser 23 is liquefied, condensed and released heat, and exchanges heat with the heating system 20 to further heat the capillary tube radiation system 31, then the refrigerant is output from the condenser 23, and enters the energy accumulator 12 through the low-temperature low-pressure refrigerant which is decompressed and throttled by the expansion valve 26, the refrigerant absorbs heat stored in the energy accumulator 12, enters the gas-liquid separator 24 through the four-way reversing valve 25, returns to the compressor 22 after gas-liquid separation, and circulates in a reciprocating manner. In the process, the energy accumulator 12 is used as a low-temperature heat source, the refrigerant exchanges heat with water in the energy accumulator 12, the water gradually changes phase in the heat exchange process and is condensed into ice, and the ice in the energy accumulator 12 absorbs heat collected by the solar heat collector 11 and then is converted into water during the operation of the second working mode.
The fourth working mode is a heating and heat storage mode which adopts an air source heat pump system for heating and adopts a solar heat storage system for heat storage: when the indoor needs to be heated, and the outdoor air temperature is less than or equal to minus 10 ℃ and is illuminated (in the daytime), the heat collected by the solar heat collector 11 is utilized to heat, the evaporation temperature of the air source heat pump system is increased, and the COP of the unit is further increased. As shown in fig. 5, the first valve 41 and the second valve 42 are closed, the third valve 61, the fourth valve 81, the fifth valve 33, the sixth valve 14, and the seventh valve 15 are opened, and the first water pump 32 and the second water pump 13 are opened. High-temperature and high-pressure gaseous refrigerant output by the compressor 22 enters the condenser 23 through the four-way reversing valve 25, the condenser 23 exchanges heat with water in the heating system 30, heating is performed on the capillary tube radiation system 31, the low-temperature and low-pressure refrigerant which is output from the condenser 23 and subjected to pressure reduction and throttling through the expansion valve 26 enters the energy accumulator 12, at the moment, the energy accumulator 12 serves as an evaporator for use, the refrigerant is vaporized in the energy accumulator 12 to exchange heat with water in the refrigerant, the refrigerant enters the gas-liquid separator 24 through the four-way reversing valve 25 after absorbing heat in the energy accumulator 12, and returns to the compressor 22 after gas-liquid separation, and the reciprocating circulation is performed in such a way. Meanwhile, the water in the energy accumulator 12 exchanges heat with the water in the solar heat collector 11, part of cold energy of the water in the energy accumulator 12 is carried away by the water in the solar heat collector 11, the temperature of a low-level heat source of the air source heat pump system is increased, and the purpose of improving the operation efficiency of the system is further achieved; and, the water circulates and flows back and forth in the water heat accumulation circuit to absorb the heat collected by the solar heat collector 11, a part of the heat is used for exchanging heat with the refrigerant, and the other part of the heat accumulator 12 is stored in the accumulator 12 in the form of ice water or ice.
The heating system control method provided by the embodiment can adopt corresponding working modes according to different conditions. In northern areas of China, particularly northeast, the temperature of outdoor air is far lower than 0 ℃ (freezing point temperature) at night, which means that ice water is used as a low-temperature heat source of the phase change energy storage heat pump, and the heat pump has great advantages compared with the heat pump using air as the heat source. Therefore, when the outdoor air temperature is low during the night, it is contemplated to use heat extraction from the accumulator until the temperature freezes below 0 ℃. When the temperature of outdoor air is higher, air can be used as a low-temperature heat source for supplying heat. If the solar energy is rich in the daytime, the solar circulating hot water can be taken as a low-temperature heat source, and the redundant solar energy can be stored in the heat accumulator so as to be used when the outdoor air temperature is low at night. When the solar heat storage type solar heat collector is in the daytime and does not need heating, the solar heat storage type solar heat collector can only operate in a solar heat storage mode.
Example 3
This embodiment provides a specific implementation scheme of heat supply control device, includes: the system comprises an acquisition module and a control module, wherein the acquisition module is used for acquiring the temperature difference between the solar thermal collector 11 and the energy accumulator 12 and the opening state of a heat utilization switch, and the control module is used for controlling the working mode of the heat supply system according to the temperature difference and the heat utilization opening state. Wherein, control module still includes:
the first judging module is used for judging whether the temperature difference between the solar thermal collector 11 and the energy accumulator 12 is greater than a preset temperature difference;
the second judgment module is used for judging whether the thermal switch is turned on or not when the temperature difference is larger than the preset temperature difference;
the first execution module is used for controlling the solar heat storage system 10 to be started and controlling one of the air source heat pump system 20 and the water source heat pump system to be started and the other to be closed when the hot switch is turned on;
the second execution module is used for controlling the solar heat storage system 10 to be started and controlling the air source heat pump system 20 and the water source heat pump system to be closed when the hot switch is closed;
the third judging module is used for judging whether the thermal switch is turned on or not when the temperature difference is smaller than the preset temperature difference;
the third execution module is used for controlling the solar heat storage system 10 to be closed and controlling one of the air source heat pump system 20 and the water source heat pump system to be opened and the other to be closed when the hot switch is opened;
and the fourth execution module is used for controlling the solar heat storage system 10, the air source heat pump system 20 and the water source heat pump system to be closed when the hot switch is closed.
The first execution module and the third execution module each include:
a fourth judging module for judging TAir conditionerWhether or not greater than TStorage tankWherein, TAir conditionerIs the outdoor air temperature, TStorage tankRefers to the temperature of the water or ice in the accumulator 12;
a first execution submodule for executing when TAir conditionerGreater than TStorage tankWhen the water source heat pump system is started, the air source heat pump system 20 is controlled to be started, and the water source heat pump system is controlled to be closed;
a fifth judging module for judging when T isAir conditionerLess than or equal to TStorage tankTime, judge TAir conditionerWhether the temperature is higher than a preset temperature or not;
a second execution submodule for executing when TAir conditionerWhen the temperature is higher than the preset temperature, controlling the air source heat pump system 20 to be started and controlling the water source heat pump system to be closed;
a third execution submodule for executing when TAir conditionerAnd when the temperature is lower than or equal to the preset temperature, controlling the air source heat pump system 20 to be closed and controlling the water source heat pump system to be opened.
Example 4
This embodiment provides an embodiment of the heat supply device, which includes at least one processor and a memory communicatively connected to the at least one processor, where the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to cause the at least one processor to execute the heat supply control method of embodiment 2.
In this embodiment, the processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal processors (Digital Signal processors), DSPs, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or any combination thereof.
In the present embodiment, the memory, as a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Example 5
This embodiment provides a specific implementation of a storage medium having stored thereon computer instructions that, when executed by a processor, implement the heating control method of embodiment 2. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
In summary, in the heating system provided in embodiment 1, the energy accumulator, the compressor, the condenser and the throttling mechanism form a water source heat pump system, the evaporator, the compressor, the condenser and the throttling mechanism form an air source heat pump system, and the solar heat collector and the energy accumulator form a solar heat storage system, so that the heating system can form three working modes, namely a heating mode, a heat storage mode and a heating and heat storage mode. Therefore, the heating system overcomes the problem that the traditional air source heat pump system is limited by air temperature to cause poor adaptability, and can adopt different operation modes according to actual temperature conditions and use requirements, so that the system is reasonably used and is more energy-saving.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A heating system, comprising: a solar heat storage system (10), an air source heat pump system (20) and a heating system (30) which are coupled in sequence, wherein,
the solar heat storage system (10) comprises a solar heat collector (11) and an energy accumulator (12), the air source heat pump system (20) comprises an evaporator (21), a compressor (22), a condenser (23) and a throttling mechanism,
the energy accumulator (12), the compressor (22), the condenser (23) and the throttling mechanism form a water source heat pump system, the working modes of the heating system comprise a heating mode, a heat storage mode and a heating and heat storage mode, the heating system is in the heating mode, the air source heat pump system (20) or the water source heat pump system is started, the heating system is in the heat storage mode, the solar heat storage system (10) is started, and the heating system is in the heating and heat storage mode, the water source heat pump system and the solar heat storage system (10) are started.
2. The heating system according to claim 1, wherein the evaporator (21), the compressor (22), the condenser (23), and the throttle mechanism are connected in sequence to form a first refrigerant circulation circuit, a first switch valve is provided on the first refrigerant circulation circuit, the accumulator (12), the compressor (22), the condenser (23), and the throttle mechanism are connected in sequence to form a second refrigerant circulation circuit, and a second switch valve is provided on the second refrigerant circulation circuit, wherein when the air source heat pump system (20) is turned on, the first switch valve is turned on, the second switch valve is turned off, and when the water source heat pump system is turned on, the second switch valve is turned on, and the first switch valve is turned off.
3. A heating system according to claim 2, characterized in that the heating system further comprises:
a first circulation line (40) communicating with the condenser (23), the throttle mechanism, and the evaporator (21);
a second circulation line (50) communicating with the evaporator (21) and the compressor (22);
a first branch line (60) and a second branch line (70) respectively communicating with the accumulator (12) and the first circulation line (40);
a third branch line (80) communicating with the first circulation line (40) and the second circulation line (50);
wherein the first switching valve includes a first valve (41) and a second valve (42), the first valve (41) and the second valve (42) being provided on the first circulation line (40), the second valve (42) being located downstream of the first valve (41);
the second switching valve includes a third valve (61) and a fourth valve (81), the third valve (61) being disposed on the first branch line (60), the fourth valve (81) being disposed on the third branch line (80);
the junction of the first circulation line (40) with the first branch line (60) is located upstream of the first valve (41), and the junction of the first circulation line (40) with the second branch line (70), the third branch line (80) is located between the first valve (41) and the second valve (42).
4. A heating system according to any one of claims 1-3, characterized in that the heating system (30) comprises a capillary tube radiation system (31) and a first water pump (32), the first water pump (32) being in communication with the capillary tube radiation system (31), the first water pump (32), the capillary tube radiation system (31) being in communication with the condenser (23) and forming a water heating circuit, on which a third on/off valve is arranged.
5. A heating control method for controlling a heating system according to any one of claims 1-4, characterized by comprising the steps of:
acquiring the temperature difference between the solar heat collector (11) and the energy accumulator (12) and the opening state of a thermal switch;
and controlling the working mode of the heating system according to the temperature difference and the opening state of the thermal switch.
6. A heating control method according to claim 5, characterized in that the step of controlling the operation mode of the heating system in dependence on the temperature difference and the open state of the heat utilization switch comprises:
judging whether the temperature difference is larger than a preset temperature difference or not;
when the temperature difference is larger than the preset temperature difference, judging whether the heat utilization switch is turned on or not;
when the heat utilization switch is turned on, controlling the solar heat storage system (10) to be turned on and controlling one of the air source heat pump system (20) and the water source heat pump system to be turned on and the other to be turned off; when the heat utilization switch is closed, the solar heat storage system (10) is controlled to be started, and the air source heat pump system (20) and the water source heat pump system are controlled to be closed;
when the temperature difference is smaller than the preset temperature difference, judging whether the heat utilization switch is turned on or not;
when the heat utilization switch is turned on, the solar heat storage system (10) is controlled to be turned off, and one of the air source heat pump system (20) and the water source heat pump system is controlled to be turned on and the other is controlled to be turned off; when the heat utilization switch is closed, the solar heat storage system (10), the air source heat pump system (20) and the water source heat pump system are controlled to be closed.
7. A heating control method according to claim 6, characterized in that the step of controlling one of the air source heat pump system (20) and the water source heat pump system to be on and the other to be off when the hot switch is on comprises:
judgment of TAir conditionerWhether or not greater than TStorage tankWherein, the T isAir conditionerIs the outdoor air temperature, said TStorage tankIs the temperature of water or ice in the accumulator (12);
when said T isAir conditionerGreater than TStorage tankWhen the water source heat pump system is started, the air source heat pump system (20) is controlled to be started, and the water source heat pump system is controlled to be closed;
when said T isAir conditionerLess than or equal to TStorage tankThen, the T is judgedAir conditionerWhether or not it is greater thanSetting the temperature;
when said T isAir conditionerWhen the temperature is higher than the preset temperature, controlling the air source heat pump system (20) to be started and controlling the water source heat pump system to be closed;
when said T isAir conditionerAnd when the temperature is less than or equal to the preset temperature, controlling the air source heat pump system (20) to be closed and controlling the water source heat pump system to be opened.
8. A heating control apparatus to which the heating control method according to any one of claims 5 to 7 is applied, characterized by comprising:
the acquisition module is used for acquiring the temperature difference between the solar heat collector (11) and the energy accumulator (12) and the opening state of a thermal switch;
and the control module is used for controlling the working mode of the heating system according to the temperature difference and the opening state of the thermal switch.
9. A heating apparatus, comprising: at least one processor and a memory communicatively coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the heating control method of any of claims 5-7.
10. A storage medium having stored thereon computer instructions, characterized in that the instructions, when executed by a processor, implement the heating control method according to any of claims 5-7.
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