CN114183803A - Intelligent night heat storage solar heating system - Google Patents
Intelligent night heat storage solar heating system Download PDFInfo
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- CN114183803A CN114183803A CN202111357168.4A CN202111357168A CN114183803A CN 114183803 A CN114183803 A CN 114183803A CN 202111357168 A CN202111357168 A CN 202111357168A CN 114183803 A CN114183803 A CN 114183803A
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- 238000005338 heat storage Methods 0.000 title claims abstract description 151
- 238000010438 heat treatment Methods 0.000 title claims abstract description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 369
- 238000005485 electric heating Methods 0.000 claims abstract description 83
- 239000000523 sample Substances 0.000 claims abstract description 16
- 239000008236 heating water Substances 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 8
- 238000011156 evaluation Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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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
- F24D13/00—Electric heating systems
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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
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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
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
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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
- F24D2200/08—Electric 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
- 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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- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to an intelligent night heat storage solar heating system which comprises a solar heat collector, a solar circulating water pump, an electric heating device, a controller, a heat storage water tank, a heat exchanger, an exhaust hole, a temperature probe, a floating ball water replenishing valve, a water drain pipe, a tail end circulating water pump, a tail end heating device, a thermometer, a first electric three-way valve, a second electric three-way valve, a third electric three-way valve and an electric heating circulating water pump. The invention calculates the heat storage required by the heat storage water tank at night according to weather forecast information, and heats the water in the heat storage water tank by using the electric heating device at night; the solar energy heat storage water tank is used for heating water in the heat storage water tank on sunny days to heat a building, the heat stored in the heat storage water tank is used for heating the building on cloudy days, and an electric heating device is selected for heating the building at night. The solar energy water heater combines electric heating, solar heating and a heat storage water tank, realizes integration of heating and energy storage, and ensures that the solar energy water heater is not influenced by weather during operation.
Description
Technical Field
The invention belongs to the technical field of building heating, relates to a solar heating system, and particularly relates to an intelligent night heat storage solar heating system.
Background
The existing building heating facilities mostly adopt electricity, coal gas and the like as energy sources, a large amount of coal resources and electric power resources are consumed in the traditional heating mode, but the electricity, the coal gas and the like belong to non-renewable resources and can be obtained only by converting certain equipment, the cost is high, and the consumed products have great pollution to the environment. In recent years, solar heating is a trend to collect solar radiation and convert the solar radiation into heat energy by using a solar heat collecting pipe, liquid is used as a heat transfer medium, water is used as a heat storage medium, and the heat energy is transmitted to a room through a heat radiating component for heating.
However, the energy density of solar energy on the earth surface is low, and the solar radiation heat changes regularly in seasons and day and night, and is also strongly influenced by random factors such as cloudy, sunny, cloudy and rainy days, so the solar radiation heat has great instability. And because solar energy collection and building heating heat load demand have characteristics such as volatility and asynchronism, lead to utilizing solar energy must solve solar energy clearance nature and unreliable problem. The existing solution is to arrange a heat storage device in a solar energy utilization system to improve the utilization efficiency of solar energy and to configure auxiliary energy sources to ensure sufficient heating heat. The solar heating system adopts electric auxiliary heating to convert high-grade electric energy into low-grade heat energy, has low energy utilization rate and higher electricity price, and the auxiliary energy of the solar heating system usually takes priority to configure an air source heat pump in order to save energy at present. The heat storage of the heat storage water tank is the most common heat storage form at present due to the characteristics of low cost, high system reliability and the like.
In the prior art, the solar auxiliary heating system cannot continuously supply heat under the condition of insufficient solar energy, and has strong limitation and insufficient heating capacity.
Disclosure of Invention
Therefore, the invention provides an intelligent night heat storage solar heating system which is used for overcoming the problems of strong limitation and insufficient heating capacity of independent solar heating in the prior art.
In order to achieve the above objects, the present invention provides an intelligent solar heating system, which comprises,
the solar heat collector (1) is used for collecting solar radiation energy and converting light energy into heat energy, and the collected heat energy can heat water in the solar heat collector (1);
the heat storage water tank (5) is connected with the solar heat collector (1) and is used for storing hot water heated by the solar heat collector (1);
the electric heating device (3) is used for supplying heat to a building by utilizing electric energy at night, is connected with the heat storage water tank (5) and is used for heating water in the heat storage water tank (5) at night;
the tail end heating device (12) is used for connecting an external building to be heated and is respectively connected with the electric heating device (3) and the heat storage water tank (5); the tail end heating device (12) is connected with the heat storage water tank (5) in the daytime and connected with the electric heating device (3) at night;
the controller (4) is used for transmitting and receiving signals and plays a role in overall control of the heating system;
the solar circulating water pump (2) is arranged between the solar heat collector (1) and the heat storage water tank (5) and is used for transporting water heated by the solar heat collector (1) to the heat storage water tank (5) and transporting water in the heat storage water tank (5) to the solar heat collector (1); the starting of the solar circulating water pump (2) is controlled by the water temperature at the water outlet of the solar heat collector (1), a thermometer (13) is arranged at the water outlet of the solar heat collector (1), the thermometer (13) is connected with the controller (4), the thermometer (13) monitors the water temperature at the water outlet of the solar heat collector (1) in real time, and the monitored water temperature information is transmitted to the controller (4); the stop of the solar circulating water pump (2) is controlled by the water temperature in the heat storage water tank (5), a temperature probe (8) is arranged in the heat storage water tank (5) and connected with the controller (4), the temperature probe (8) monitors the water temperature in the heat storage water tank (5) in real time, and transmits the monitored water temperature information to the controller (4);
the first electric three-way valve (14) and the electric heating circulating water pump (17) are arranged between the electric heating device (3) and the heat storage device (5), and the rotation of the first electric three-way valve (14) is controlled by the controller (4) so as to heat water in the heat storage water tank (5) by the electric heating device (3); a heat exchanger (6) is arranged in the heat storage device (5), and the heat exchanger (6) can convey hot water heated by the electric heating device (3) into the heat storage water tank (5) to heat water in the heat storage water tank (5);
the second electric three-way valve (15), the third electric three-way valve (16) and the tail-end circulating water pump (11) are arranged between the tail-end heating device (12) and the heat storage water tank (5) and between the electric heating devices (3), the rotation of the second electric three-way valve (15) and the third electric three-way valve (16) is controlled by the controller (4) so as to realize heating of the tail-end heating device (12) by utilizing hot water stored in the heat storage water tank (5) in the daytime and heating of a building by utilizing the electric heating devices (3) at night.
The controller (4) is connected with a weather prediction website, can acquire weather information of the next day in advance, and calculates the required heat storage amount of the heat storage water tank (5) at night according to the weather information so as to control the electric heating device (3) to heat water in the heat storage water tank (5) to the required temperature at night;
the heating system preferentially selects solar energy to heat water in the heat storage water tank (5) in the daytime, and selects electric energy to heat water in the heat storage water tank (5) through the electric heating device (3) at night.
Furthermore, a temperature evaluation parameter Wj of water in the solar heat collector (1) is arranged in the controller (4), when solar energy is adopted to heat the water in the solar heat collector (1), the thermometer (13) monitors the heating water temperature Ws in real time and transmits the monitoring result to the controller (4), the controller (4) compares the monitored real-time water temperature Ws with the temperature evaluation parameter Wj,
when Ws is larger than or equal to Wj, the controller (4) judges that the temperature of the water in the solar heat collector (1) reaches the set temperature evaluation parameter Wj of the water in the solar heat collector (1), the controller (4) controls the solar circulating water pump (2) to be started, the solar circulating water pump (2) conveys the water heated by the solar heat collector (1) to the heat storage water tank (5), and meanwhile, the original water in the heat storage water tank (5) is conveyed to the solar heat collector (1) so that the solar heat collector (1) circularly heats the water in the heat storage water tank (5) to enable the water temperature to be continuously increased;
when Ws is smaller than Wj, the controller (4) judges that the temperature of water in the solar heat collector (1) is insufficient, the controller (4) controls the solar heat collector (1) to continuously collect solar energy so as to heat the water in the solar heat collector (1) and enable the water temperature to be continuously increased, and the thermometer (13) monitors the water temperature Ws in the solar heat collector (1) in real time until Ws is larger than or equal to Wj.
Furthermore, a maximum temperature preset value Wz of water in the hot water storage tank (5) is also arranged in the controller (4), the temperature probe (8) monitors the water temperature Wc of the hot water storage tank (5) in real time and transmits the monitoring result to the controller (4), the controller (4) compares the monitored water temperature Wc with the maximum temperature preset value Wz,
when Wc is less than Wz, the controller (4) controls the solar circulating water pump (2) to continuously convey the water heated by the solar heat collector (1) to the hot water storage tank (5);
and when Wc is larger than or equal to Wz, the controller (4) controls the solar circulating water pump (2) to stop working so as to stop the solar heat collector (1) from heating water in the hot water storage tank (5).
Furthermore, when the heating system heats the tail end heating device (12) through the electric heating device (3) at night, the controller (4) controls the second electric three-way valve (15) and the third electric three-way valve (16) to rotate, meanwhile, the tail end circulating water pump (11) is started, hot water output by the electric heating device (3) flows into the tail end heating device (12), and cold water output by the tail end heating device (12) flows into the electric heating device (3), so that circulating heating is achieved.
Further, when heating at night is carried out, and meanwhile the controller (4) acquires that the weather of the next day is cloudy in advance, the controller (4) judges that the electric heating device (3) needs to heat water in the heat storage water tank (5) for heat storage so as to meet the heating requirement of the building in the second day;
the controller (4) is internally provided with a heating demand heat value Qb of the building in the daytime, the controller (4) obtains the lowest daytime temperature T1 in the next day from a weather forecasting website and is used for calculating the required temperature Wa of hot water in the hot water storage tank (5), wherein Wa is Qb ÷ c ÷ m + T1+ T, c is the specific heat capacity of water, m is the quality of water in the hot water storage tank (5), and T is the required water temperature calculation compensation parameter of the hot water storage tank (5).
Further, when heating at night, the temperature probe (8) monitors the temperature Wb of water in the hot water storage tank (5) in real time, the monitoring result is transmitted to the controller (4), the controller (4) compares the monitored water temperature Wb with the required temperature Wa,
when Wb is larger than or equal to Wa, the controller (4) judges that the heat stored in the hot water storage tank (5) is enough to provide the heating heat required by the building in the day of the next day, and the controller (4) controls the electric heating device (3) not to heat the water in the hot water storage tank (5);
when Wb is less than Wa, the controller (4) judges that the heat stored in the hot water storage tank (5) is insufficient to provide the heating heat required by the next day for the building, and the controller (4) controls the electric heating device (3) to heat the water in the hot water storage tank (5).
Further, when the controller (4) judges that the heat stored in the hot water storage tank (5) is not enough to provide the heating heat required in the daytime in the next day, the controller (4) controls the electric heating device (3) to heat the water in the hot water storage tank (5), the controller controls the first electric three-way valve (14) to rotate, the electric heating circulating water pump (17) is started simultaneously, the water heated by the electric heating device (3) is transported into the heat exchanger (6) to heat the hot water in the hot water storage tank (5), the cooling water passing through the hot water storage tank (5) in the heat exchanger (6) is transported into the electric heating device (3) to be heated in a circulating manner, the temperature of the hot water in the hot water storage tank (5) is continuously increased, the temperature probe (8) monitors the temperature Wb' of the water in the hot water storage tank (5) in real time, and transmits the monitoring result to the controller (4), the controller (4) compares Wb' with the temperature Wa,
when Wb' is more than or equal to Wa, the controller (4) judges that the heat stored in the heat storage water tank (5) is enough for heating the building in the daytime in the next day, the controller (4) controls the first electric three-way valve (14) to rotate, and meanwhile, the electric heating circulating water pump (17) stops working, so that the electric heating device stops heating the water in the heat storage water tank (5);
when Wb 'is less than Wa, the controller (4) judges that the heat stored in the heat storage water tank (5) is insufficient to heat the building in the daytime the next day, the controller (4) judges that the electric heating circulating water pump (17) continues to work, and the electric heating device (3) continues to heat the water in the heat storage water tank (5) until Wb' is more than or equal to Wa.
Compared with the prior art, the invention has the advantages that,
when the intelligent night heat storage solar heating system is adopted, solar energy is preferentially selected to heat water in the heat storage water tank (5) in the daytime so as to heat a building; electric energy is selected at night to supply heat to the building through the electric heating device (3); if cloudy day or solar strength are not enough daytime, then heating system will utilize the previous night the heat of heat storage water tank (5) deposit heats for the building, combines together solar heating and electrical heating, realizes heating and energy storage integration, has avoided the heat-retaining not enough that bad weather caused, satisfies heating system does not receive time weather influence in, has reduced the heating cost, has promoted heating system's heating capacity.
Further, after the controller (4) receives weather forecast information of the weather system on the next day, the predicted collected heat of the solar heat collector (1) is subtracted by the heating demand required by the building to obtain the heat which needs to be stored in advance in the heat storage water tank (5), the temperature which needs to be reached when the heat is stored in the heat storage water tank (5) is calculated by using a water heat storage formula, the required temperature is compared with the actual temperature of water in the heat storage water tank (5), the controller (4) judges whether the electric heating device (3) needs to be started to heat water in the heat storage water tank (5) for heat storage, the heating system is combined with weather conditions, the collected heat of the solar heat collector (1) in the next day is intelligently predicted, the heat storage amount required by the heat storage water tank (5) in the previous night can be accurately calculated, and the heating demand of the electric heating device at night can be accurately regulated and controlled, the operating cost of the heating system is reduced.
Further, when the controller (4) acquires that the weather on the second day is sunny, the controller (4) judges that the solar energy collected by the solar heat collector (1) is used for heating the water in the heat storage water tank (5) in the daytime on the second day so as to heat the building; when the controller (4) acquires that the weather of the next day is cloudy day, the controller (4) judges that the electric heating device (3) needs to heat the water in the heat storage water tank (5) at night to save heat, heat the building in the next day, and ensure that the heating system is not influenced by the weather of the time.
Further, the controller (4) determines that the temperature of hot water in the hot water storage tank (5) needs to be calculated when the electric heating device (3) heats water in the hot water storage tank (5); when setting up the required temperature of water in heat storage water tank (5), controller (4) are provided with the temperature simultaneously and calculate compensation parameter, adjust the heat of storing in heat storage water tank (5) in a flexible way, have avoided the heat-retaining not enough that next day actual weather and forecast weather are different to lead to, have also avoided simultaneously in heat storage water tank (5) at night because of the heat-retaining that calorific loss leads to not enough, have strengthened heating system's heating capacity greatly.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent night-time heat storage solar heating system according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.
Fig. 1 is a schematic structural diagram of an intelligent night-time heat storage solar heating system according to the present invention.
The invention discloses an intelligent night heat storage solar heating system, which comprises:
the solar heat collector 1 is used for collecting solar radiation energy and converting light energy into heat energy, and the collected heat energy can heat water in the solar heat collector 1;
the heat storage water tank 5 is connected with the solar heat collector 1 and is used for storing hot water heated by the solar heat collector 1;
an electric heating device 3 for providing heating to a building by using electric energy at night, the electric heating device being connected to the hot water storage tank 5 for heating water in the hot water storage tank 5 at night;
a terminal heating device 12 for connecting an external building to be heated and respectively connected to the electric heating device 3 and the heat storage water tank 5; the tail end heating device 12 is connected with the heat storage water tank 5 in the day and connected with the electric heating device 3 at night;
the controller 4 is used for transmitting and receiving signals and plays a role in overall control of the heating system;
the solar circulating water pump 2 is arranged between the solar heat collector 1 and the heat storage water tank 5 and is used for transporting water heated by the solar heat collector 1 to the heat storage water tank 5 and transporting water in the heat storage water tank 5 to the solar heat collector 1; the starting of the solar circulating water pump 2 is controlled by the water temperature at the water outlet of the solar heat collector 1, a thermometer 13 is arranged at the water outlet of the solar heat collector 1, the thermometer 13 is connected with the controller 4, and the thermometer 13 monitors the water temperature at the water outlet of the solar heat collector 1 in real time and transmits the monitored water temperature information to the controller 4; the stop of the solar circulating water pump 2 is controlled by the water temperature in the heat storage water tank 5, a temperature probe 8 is arranged in the heat storage water tank 5 and is connected with the controller 4, and the temperature probe 8 monitors the water temperature in the heat storage water tank 5 in real time and transmits the monitored water temperature information to the controller 4;
the first electric three-way valve 14 and the electric heating circulating water pump 17 are arranged between the electric heating device 3 and the heat storage device 5, and the rotation of the first electric three-way valve 14 is controlled by the controller 4 so as to heat water in the heat storage water tank 5 by the electric heating device 3; a heat exchanger 6 is arranged in the heat storage device 5, and the heat exchanger 6 can convey hot water heated by the electric heating device 3 into the heat storage water tank 5 to heat water in the heat storage water tank 5;
the second electric three-way valve 15, the third electric three-way valve 16 and the tail-end circulating water pump 11 are arranged between the tail-end heating device 12 and the heat storage water tank 5 and between the tail-end heating device 3, the rotation of the second electric three-way valve 15 and the third electric three-way valve 16 is controlled by the controller 4, and therefore the tail-end heating device 12 can be heated by hot water stored in the heat storage water tank 5 in the daytime and a building can be heated by the electric heating device 3 at night.
In the daytime, when solar energy is adopted to heat water in the solar heat collector 1, the thermometer 13 monitors the heating water temperature in real time, and when the water temperature reaches the set temperature, the solar circulating water pump 2 is started to convey the water heated by the solar heat collector 1 to the heat storage water tank 5 for circulating heating; the temperature probe 8 in the heat storage water tank 5 monitors the water temperature in the heat storage water tank 5 in real time, and when the temperature reaches a set temperature, the solar circulating water pump 2 stops working;
at night, the controller 4 starts the electric heating device 3, the controller 4 controls the second electric three-way valve 15 and the third electric three-way valve 16 to rotate, meanwhile, the tail end circulating water pump 11 is started, and water heated by the electric heating device 3 is conveyed to the tail end heating device 12 for heating; when the controller 4 acquires the information that the solar intensity is insufficient on the next day, the electric heating device 3 needs to heat the water in the hot water storage tank 5 for heat storage; the controller 4 controls the first electric three-way valve 14 to rotate, and meanwhile, the electric heating circulating water pump 17 is started to convey hot water heated by the electric heating device 3 to the heat exchanger 6 to heat water in the hot water storage tank 5.
In this example, Wj is 60 ℃, Wz is 70 ℃;
on a sunny day, the controller 4 determines that the solar heat collector 1 absorbs solar energy to heat water in the hot water storage tank 5 so as to heat a building; after the solar heat collector 1 absorbs solar energy, water in the solar heat collector 1 is heated firstly, the thermometer 13 detects the water temperature in the solar heat collector 1 in real time, when the water temperature reaches 60 ℃, the controller 4 judges that the solar circulating water pump 2 is started, hot water in the solar heat collector 1 is transported to the heat storage water tank 5, and heat is stored so as to heat a building; meanwhile, a temperature probe 8 in the heat storage water tank detects the water temperature in the heat storage water tank 5 in real time, when the water temperature does not reach 75 ℃, the controller 4 judges that the solar circulating water pump 2 continues to work, the water with higher temperature heated by the solar heat collector 1 is conveyed into the heat storage water tank 5, meanwhile, the water in the heat storage water tank 5 is conveyed into the solar heat collector 1 to be heated, and the circulation is carried out until the water temperature in the heat storage water tank 5 reaches 75 ℃, and at the moment, the controller 4 controls the solar circulating water pump 2 to stop working so as to stop heating the water in the heat storage water tank 5.
At night, the heating system acquires weather information of the next day from the weather forecast system, the weather information of the next day is clear, the sun is strong enough, and the controller 4 judges that the electric heating device 3 only needs to provide heating for the tail end heating device 12; when the heating system heats the tail end heating device 12 through the electric heating device 3 at night, the controller 4 controls the third electric three-way valve 16 to rotate, so that the cold water output by the tail end heating device 12 flows into the electric heating device 3, and meanwhile, the controller 4 controls the second electric three-way valve 15 to rotate, so that the hot water output by the electric heating device 3 flows into the tail end heating device 12, and therefore circulating heating is achieved.
At night, the heating system acquires weather information of the next day from the weather forecast system, the weather of the next day is cloudy, the sunlight intensity is weak, and the sunlight intensity is not enough to support the heating requirement of the building in the daytime of the next day, and the controller 4 judges that the electric heating device 3 needs to heat water in the heat storage water tank 5 for heat storage while supplying heat to the tail end heating device 12; the controller 4 subtracts the predicted heat collection amount of the solar heat collector 1 from the heat load of the heating building to calculate the heat storage amount required to be stored in the heat storage water tank 5 at the night valley electricity period, and calculates the water temperature of the water in the heat storage water tank 5 after the water meets the required heat storage amount by using a water heat storage formula; the controller 4 controls the electric heating circulating water pump 17 to start, and simultaneously rotates the first electric three-way valve 14, so that the water heated by the electric heating device 3 flows into the heat storage water tank 5, and simultaneously, the water in the heat storage water tank 5 flows into the electric heating device 3 to perform circulating heating, and the temperature of the water in the heat storage water tank 5 is continuously increased until the required temperature is reached.
In cloudy days, the solar radiation intensity is low in daytime, the water temperature is not up to 60 ℃, the solar circulating water pump 2 cannot be started, and the heating system only supplies heat to the building through the heat stored in the electric heating device 3 in the previous day and at night by virtue of the heat storage water tank 5; and at night, the heating system automatically controls the electric heating device 3 to heat the building, and simultaneously controls the on-off of the electric heat storage part according to the calculated predicted required heat storage amount to store heat.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an intelligence night heat accumulation solar heating system which characterized in that includes:
the solar heat collector (1) is used for collecting solar radiation energy and converting light energy into heat energy, and the collected heat energy can heat water in the solar heat collector (1);
the heat storage water tank (5) is connected with the solar heat collector (1) and is used for storing hot water heated by the solar heat collector (1);
the electric heating device (3) is used for supplying heat to a building by utilizing electric energy at night, is connected with the heat storage water tank (5) and is used for heating water in the heat storage water tank (5) at night;
the tail end heating device (12) is used for connecting an external building to be heated and is respectively connected with the electric heating device (3) and the heat storage water tank (5); the tail end heating device (12) is connected with the heat storage water tank (5) in the daytime and connected with the electric heating device (3) at night;
the controller (4) is used for transmitting and receiving signals and plays a role in overall control of the heating system;
the controller (4) is connected with a weather prediction website, can acquire weather information of the next day in advance, and calculates the amount of heat storage required by the heat storage water tank (5) at night according to weather forecast information so as to control the electric heating device (3) to heat water in the heat storage water tank (5) to the required temperature at night;
the heating system preferentially selects solar energy to heat water in the heat storage water tank (5) in the daytime, and selects electric energy to heat water in the heat storage water tank (5) through the electric heating device (3) at night.
2. The intelligent night-time heat storage solar heating system according to claim 1, wherein a solar circulating water pump (2) is arranged between the solar heat collector (1) and the hot water storage tank (5) and is used for transporting water heated by the solar heat collector (1) to the hot water storage tank (5) and transporting water in the hot water storage tank (5) to the solar heat collector (1); the starting of the solar circulating water pump (2) is controlled by the water temperature at the water outlet of the solar heat collector (1), a thermometer (13) is arranged at the water outlet of the solar heat collector (1), the thermometer (13) is connected with the controller (4), the thermometer (13) monitors the water temperature at the water outlet of the solar heat collector (1) in real time, and the monitored water temperature information is transmitted to the controller (4); the solar circulating water pump (2) stops being controlled by the water temperature in the heat storage water tank (5), a temperature probe (8) is arranged in the heat storage water tank (5), the temperature probe is connected with the controller (4), the temperature probe (8) monitors the water temperature in the heat storage water tank (5) in real time, and monitored water temperature information is transmitted to the controller (4).
3. The intelligent night-time heat storage solar heating system according to claim 1, wherein a first electric three-way valve (14) and an electric heat circulating water pump (17) are arranged between the electric heating device (3) and the heat storage device (5), and the rotation of the first electric three-way valve (14) is controlled by the controller (4) to heat water in the heat storage water tank (5) by the electric heating device (3); a heat exchanger (6) is arranged in the heat storage device (5), and the heat exchanger (6) can convey hot water heated by the electric heating device (3) into the heat storage water tank (5) to heat water in the heat storage water tank (5);
the second electric three-way valve (15), the third electric three-way valve (16) and the tail-end circulating water pump (11) are arranged between the tail-end heating device (12) and the heat storage water tank (5) and between the electric heating devices (3), the rotation of the second electric three-way valve (15) and the third electric three-way valve (16) is controlled by the controller (4) so as to realize heating of the tail-end heating device (12) by utilizing hot water stored in the heat storage water tank (5) in the daytime and heating of a building by utilizing the electric heating devices (3) at night.
4. The intelligent night-time heat storage solar heating system according to claim 1, wherein the controller (4) is capable of acquiring second day weather information, and when the second day weather information is acquired to be a fine day, the controller (4) determines that the heating system uses the solar heat collector (1) to collect solar energy to heat water in the hot water storage tank (5) in the second day so as to heat the end heating device (12);
when controller (4) acquire that next day weather is cloudy day, controller (4) judge heating system will adopt at night electric heating device (3) utilize the electric energy heating water in heat storage water tank (5), carry out the heat deposit, be used for in the next day daytime to terminal heating system heats.
5. The intelligent night-time heat storage solar heating system according to claim 4, wherein the controller (4) is internally provided with a temperature evaluation parameter Wj of water in the solar heat collector (1), the thermometer (13) monitors the heating water temperature Ws in real time and transmits the monitoring result to the controller (4) when the water in the solar heat collector (1) is heated by solar energy, the controller (4) compares the monitored real-time water temperature Ws with the temperature evaluation parameter Wj,
when Ws is larger than or equal to Wj, the controller (4) judges that the temperature of the water in the solar heat collector (1) reaches the set temperature evaluation parameter Wj of the water in the solar heat collector (1), the controller (4) controls the solar circulating water pump (2) to be started, the solar circulating water pump (2) conveys the water heated by the solar heat collector (1) to the heat storage water tank (5), and meanwhile, the original water in the heat storage water tank (5) is conveyed to the solar heat collector (1) so that the solar heat collector (1) circularly heats the water in the heat storage water tank (5) to enable the water temperature to be continuously increased;
when Ws is smaller than Wj, the controller (4) judges that the temperature of water in the solar heat collector (1) is insufficient, the controller (4) controls the solar heat collector (1) to continuously collect solar energy so as to heat the water in the solar heat collector (1) and enable the water temperature to be continuously increased, and the thermometer (13) monitors the water temperature Ws in the solar heat collector (1) in real time until Ws is larger than or equal to Wj.
6. The intelligent night heat storage solar heating system according to claim 4, wherein the controller (4) is further provided with a maximum temperature preset value Wz of water in the hot water storage tank (5), the temperature probe (8) monitors the water temperature Wc of the hot water storage tank (5) in real time and transmits the monitoring result to the controller (4), the controller (4) compares the monitored water temperature Wc with the maximum temperature preset value Wz,
when Wc is less than Wz, the controller (4) controls the solar circulating water pump (2) to continuously convey the water heated by the solar heat collector (1) to the hot water storage tank (5);
and when Wc is larger than or equal to Wz, the controller (4) controls the solar circulating water pump (2) to stop working so as to stop the solar heat collector (1) from heating water in the hot water storage tank (5).
7. The intelligent night-time heat storage solar heating system according to claim 4, wherein when the heating system heats the end heating device (12) through the electric heating device (3) at night, the controller (4) controls the second electric three-way valve (15) and the third electric three-way valve (16) to rotate, and meanwhile, the end circulating water pump (11) is started, so that hot water output by the electric heating device (3) flows into the end heating device (12), and cold water output by the end heating device (12) flows into the electric heating device (3), so as to realize circulating heating.
8. The intelligent night heat storage solar heating system according to claim 7, wherein when night heating is performed, the controller (4) needs to acquire day weather information of the next day in advance, and when the acquired day weather is cloudy, the controller (4) determines that the electric heating device (3) needs to heat water in the hot water storage tank (5) for heat storage so as to meet the heating demand of the building in the second day in the day;
the controller (4) is internally provided with a heating demand heat value Qb of the building in the daytime, the controller (4) obtains the lowest daytime temperature T1 in the next day from a weather forecasting website and is used for calculating the required temperature Wa of hot water in the hot water storage tank (5), wherein Wa is Qb ÷ c ÷ m + T1+ T, c is the specific heat capacity of water, m is the quality of water in the hot water storage tank (5), and T is the required water temperature calculation compensation parameter of the hot water storage tank (5).
9. The intelligent night-time thermal storage solar heating system according to claim 8, wherein the temperature probe (8) monitors the temperature Wb of the water in the hot water storage tank (5) in real time and transmits the monitoring result to the controller (4) when night-time heating is performed, the controller (4) compares the monitored water temperature Wb with a required temperature Wa,
when Wb is larger than or equal to Wa, the controller (4) judges that the heat stored in the hot water storage tank (5) is enough to provide the heating heat required by the building in the day of the next day, and the controller (4) controls the electric heating device (3) not to heat the water in the hot water storage tank (5);
when Wb is less than Wa, the controller (4) judges that the heat stored in the hot water storage tank (5) is insufficient to provide the heating heat required by the next day for the building, and the controller (4) controls the electric heating device (3) to heat the water in the hot water storage tank (5).
10. The intelligent night thermal solar heating system of claim 9,
when controller (4) judge that the heat that the hot water of heat storage water tank (5) was saved is not enough to provide the required heating heat in the daytime next day, controller (4) control when electric heating device (3) heats the water in heat storage water tank (5), controller control first electric three-way valve (14) rotate, start simultaneously electric heat circulating water pump (17), with water after electric heating device (3) heating is transported to heat exchanger (6) in order to heat the water in heat storage water tank (5), in transporting electric heating device (3) with the cooling water after heat storage water tank (5) in heat exchanger (6) simultaneously to carry out circulation heating, constantly make the temperature of water in heat storage water tank (5) rise, temperature probe (8) real-time supervision heat storage water tank (5) normal water temperature Wb' and with the monitoring result transmit to controller (4), the controller (4) compares Wb' with the temperature Wa,
when Wb' is more than or equal to Wa, the controller (4) judges that the heat stored in the heat storage water tank (5) is enough for heating the building in the daytime in the next day, the controller (4) controls the first electric three-way valve (14) to rotate, and meanwhile, the electric heating circulating water pump (17) stops working, so that the electric heating device stops heating the water in the heat storage water tank (5);
when Wb 'is less than Wa, the controller (4) judges that the heat stored in the heat storage water tank (5) is insufficient to heat the building in the daytime the next day, the controller (4) judges that the electric heating circulating water pump (17) continues to work, and the electric heating device (3) continues to heat the water in the heat storage water tank (5) until Wb' is more than or equal to Wa.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075250A (en) * | 2009-10-01 | 2011-04-14 | Chofu Seisakusho Co Ltd | Operation method for water heater, and water heater |
| JP2011220583A (en) * | 2010-04-07 | 2011-11-04 | Chugoku Electric Power Co Inc:The | Switching heat exchange method using hot water storage tank including expansion pipe and electric water heater for the same |
| KR20150084425A (en) * | 2014-01-14 | 2015-07-22 | 주식회사 경동나비엔 | System for supplying hot water using solar enegy |
| CN104895218A (en) * | 2015-06-23 | 2015-09-09 | 河北工业大学 | Renewable energy coupled energy storage and temperature regulation wall body system and using method thereof |
| CN106642682A (en) * | 2017-01-10 | 2017-05-10 | 珠海格力电器股份有限公司 | Multifunctional heat pump system with air energy and solar energy coupled |
| CN107062473A (en) * | 2017-03-10 | 2017-08-18 | 山东建筑大学 | A kind of solar air source heat pumps combined supply system |
| CN111207434A (en) * | 2020-01-17 | 2020-05-29 | 四川省建筑设计研究院有限公司 | Solar energy coupling air source heat pump complementary heating system and control method |
| CN112815550A (en) * | 2021-02-23 | 2021-05-18 | 山东力诺瑞特新能源有限公司 | Anti-freezing and anti-overheating solar heat pump coupling heat supply system |
| CN112815373A (en) * | 2021-01-15 | 2021-05-18 | 燕山大学 | Renewable energy and electric energy multi-energy complementary combined heat pump cold and hot water preparation system |
-
2021
- 2021-11-16 CN CN202111357168.4A patent/CN114183803A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075250A (en) * | 2009-10-01 | 2011-04-14 | Chofu Seisakusho Co Ltd | Operation method for water heater, and water heater |
| JP2011220583A (en) * | 2010-04-07 | 2011-11-04 | Chugoku Electric Power Co Inc:The | Switching heat exchange method using hot water storage tank including expansion pipe and electric water heater for the same |
| KR20150084425A (en) * | 2014-01-14 | 2015-07-22 | 주식회사 경동나비엔 | System for supplying hot water using solar enegy |
| CN104895218A (en) * | 2015-06-23 | 2015-09-09 | 河北工业大学 | Renewable energy coupled energy storage and temperature regulation wall body system and using method thereof |
| CN106642682A (en) * | 2017-01-10 | 2017-05-10 | 珠海格力电器股份有限公司 | Multifunctional heat pump system with air energy and solar energy coupled |
| CN107062473A (en) * | 2017-03-10 | 2017-08-18 | 山东建筑大学 | A kind of solar air source heat pumps combined supply system |
| CN111207434A (en) * | 2020-01-17 | 2020-05-29 | 四川省建筑设计研究院有限公司 | Solar energy coupling air source heat pump complementary heating system and control method |
| CN112815373A (en) * | 2021-01-15 | 2021-05-18 | 燕山大学 | Renewable energy and electric energy multi-energy complementary combined heat pump cold and hot water preparation system |
| CN112815550A (en) * | 2021-02-23 | 2021-05-18 | 山东力诺瑞特新能源有限公司 | Anti-freezing and anti-overheating solar heat pump coupling heat supply system |
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