CN107796041B - Control method of solar heating system - Google Patents
Control method of solar heating system Download PDFInfo
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- CN107796041B CN107796041B CN201711072498.2A CN201711072498A CN107796041B CN 107796041 B CN107796041 B CN 107796041B CN 201711072498 A CN201711072498 A CN 201711072498A CN 107796041 B CN107796041 B CN 107796041B
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- hot water
- hot
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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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0015—Domestic hot-water supply systems using solar energy
- F24D17/0021—Domestic hot-water supply systems using solar energy with accumulation of the heated water
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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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses 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
Abstract
The invention discloses a control method of a solar heating system. The solar heating system comprises a solar heating device and a hot water supply device, wherein the solar heating device is used for heating hot water of the hot water supply device, the hot water supply device comprises a first hot water circulation and a second hot water circulation, the first hot water circulation is used for conveying hot water heated by the solar heating device to the second hot water circulation, and the second hot water circulation is used for conveying hot water conveyed by the first hot water circulation to a water use end. According to the solar heating system provided by the invention, the utilization efficiency of the solar device can be improved, and the comfort level of a user can be improved.
Description
Technical Field
The invention relates to the technical field of solar heat collection equipment, in particular to a control method of a solar heat supply system.
Background
Solar energy is used as a pollution-free renewable energy source, is always paid attention to by various social circles, and has increasingly strong demands for replacing traditional energy sources under the background that the traditional energy sources cause great environmental pollution, the energy sources are excessively consumed to cause shortage and the like. The solar heat collecting device is more favored by the common people in the way of providing domestic water, the solar heat collecting system has good performance and large heat storage energy, and is particularly suitable for places (such as school dormitories, factories, ordinary families and the like) where a large number of people use hot water in a concentrated manner; second, the user has poor comfort in use and has to wait a considerable period of time before the user can use the hot water. Therefore, when the solar heat collection system is unreasonable to be applied, the utilization rate of the solar device is not high, the equipment and resources are wasted greatly, the comfort of a user is poor, and the use value of the solar heat collection device is reduced greatly.
Disclosure of Invention
The embodiment of the invention provides a control method of a solar heating system, which can improve the utilization efficiency of a solar device and the comfort level of a user.
In order to achieve the above object, an embodiment of the present invention provides a solar heating system, including a solar heating device and a hot water supply device, where the solar heating device is configured to heat hot water of the hot water supply device, and the hot water supply device includes a first hot water cycle for delivering hot water heated by the solar heating device to the second hot water cycle, and a second hot water cycle for delivering hot water delivered by the first hot water cycle to a water end.
Preferably, the first hot water circulation includes a first water tank, a first circulating water pump and a second water tank, the solar heating device is used for heating water in the first water tank, and the first circulating water pump is used for pumping water in the first water tank into the second water tank.
Preferably, the second hot water circulation comprises a second water tank, a second circulating water pump and a water delivery pipeline, the water delivery pipeline is used for delivering hot water to the water use end, the second circulating water pump is arranged on the water delivery pipeline, and the water delivery pipeline is selectively communicated with the second water tank or the water use end.
Preferably, the first water tank comprises a first water inlet and a first water outlet, the second water tank comprises a second water inlet, a second water outlet and a third water outlet, the first water inlet is connected to the second water outlet, the first water outlet is connected to the water inlet end of the first circulating water pump, the water outlet end of the first circulating water pump is connected to the second water inlet of the second water tank, the water inlet end of the second water tank is connected to the third water outlet, and the water outlet end of the second water tank is selectively communicated with the second water inlet or the water using end of the second water tank through a water conveying pipeline.
Preferably, the first water tank is provided with a first temperature sensor for detecting the water temperature in the first water tank, the second water tank is provided with a second temperature sensor for detecting the water temperature in the second water tank, and the hot water supply device controls the first hot water cycle and the second hot water cycle according to the water temperature detected by the first temperature sensor and the water temperature detected by the second temperature sensor.
Preferably, the hot water supply device comprises a first water tank, a second water tank and a third circulating water pump, wherein the inlet end of the third circulating water pump is selectively communicated with the first water tank and the second water tank, the first water tank, the third circulating water pump and the second water tank form a first hot water circulation, and the second water tank and the third circulating water pump form a second hot water circulation.
Preferably, the inlet end of the third circulating water pump is selectively communicated with the first water tank or the second water tank through a three-way valve, and the water outlet end of the third circulating water pump is provided with a waterway temperature sensor.
Preferably, the solar heating device comprises a solar heat collecting device, a heat exchanger and a fourth circulating water pump, wherein the solar heat collecting device, the heat exchanger and the fourth circulating water pump form heat exchange circulation, and the heat exchanger is in heat exchange connection with the first hot water circulation.
According to another aspect of the present invention, there is provided a control method of a solar heating system, including:
acquiring the water temperature in a water conveying pipeline of the second hot water circulation, which is used for supplying hot water to a water use end;
detecting a difference between the water temperature in the water delivery pipeline and the target water temperature;
and when the difference between the water temperature in the water conveying pipeline and the target water temperature is greater than the preset range, heating the water in the water conveying pipeline.
Preferably, the step of heating the water in the water delivery line comprises:
acquiring the water temperature in the second water tank;
detecting a difference between the water temperature in the second water tank and the water temperature in the water delivery pipeline;
when the difference value between the water temperature in the second water tank and the water temperature in the water conveying pipeline is larger than a preset range, controlling the second hot water to circulate, and conveying the hot water in the second water tank to the water conveying pipeline.
Preferably, the step of controlling the second hot water circulation to deliver the hot water in the second water tank to the water delivery pipeline further includes:
controlling a first circulating water pump of the first hot water circulation to stop running;
controlling a second circulating water pump of the second hot water circulation to operate;
and controlling the flow of the hot water in the second water tank to circulate to the water delivery pipeline through the second circulating water pump.
Preferably, the step of heating the water in the water delivery line further comprises:
acquiring the water temperature of a first water tank;
acquiring the water temperature of the second water tank;
detecting a difference between the water temperature of the first water tank and the water temperature of the second water tank;
when the difference between the water temperature of the first water tank and the water temperature of the second water tank is larger than a preset range, the first hot water circulation operation is controlled, and the hot water in the first water tank is conveyed to the second water tank.
Preferably, the step of controlling the second hot water circulation to deliver the hot water in the second water tank to the water delivery pipeline further includes:
the control three-way valve is communicated with the third circulating water pump and the second water tank;
and controlling the third circulating water pump to operate so that hot water circularly flows among the three-way valve, the third circulating water pump, the second water tank and the water delivery pipeline.
Preferably, the step of heating the water in the water delivery line further comprises:
the control three-way valve is communicated with the third circulating water pump and the first water tank;
and controlling the third circulating water pump to operate so that hot water circularly flows among the first water tank, the three-way valve, the third circulating water pump and the second water tank.
Preferably, the control method further includes:
acquiring the water temperature of a first water tank;
detecting a difference between the water temperature of the first water tank and a preset water tank water temperature;
when the difference value between the water temperature of the first water tank and the water temperature of the preset water tank is larger than the preset range, the fourth circulating water pump is controlled to operate, so that the solar heat collection device heats the water in the first water tank.
By applying the technical scheme of the invention, the solar heating system comprises a solar heating device and a hot water supply device, the solar heating device is used for heating hot water of the hot water supply device, the hot water supply device comprises a first hot water cycle and a second hot water cycle, the first hot water cycle is used for conveying hot water heated by the solar heating device to the second hot water cycle, and the second hot water cycle is used for conveying hot water conveyed by the first hot water cycle to a water use end. This solar heating system can make full use of solar energy heat water, then carry the position that is close to the water end with hot water through a plurality of hydrologic cycle pipelines, need not to drain solar heating device to the cold water between the water end, can make the water that carries to the water end remain at suitable temperature all the time, thereby when the user needs to use hot water, make hot water can in time carry to the water end, the user need not to wait for a long time, improve solar device's utilization efficiency, improve user water use comfort level simultaneously.
Drawings
Fig. 1 is a schematic view of a solar heating system according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a solar heating system according to a second embodiment of the present invention;
fig. 3 is a control flow chart of the solar heating system according to the embodiment of the present invention.
Reference numerals illustrate: 1. a first water tank; 2. a first circulating water pump; 3. a second water tank; 4. a second circulating water pump; 5. a water delivery pipeline; 6. a first temperature sensor; 7. a second temperature sensor; 8. a third circulating water pump; 9. a three-way valve; 10. a solar heat collection device; 11. a heat exchanger; 12. and a fourth circulating water pump.
Detailed Description
The invention will now be described in further detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.
Referring to fig. 1 and 2 in combination, according to an embodiment of the present invention, a solar heating system includes a solar heating device for heating hot water of a hot water supply device, and a hot water supply device including a first hot water cycle for transferring hot water heated by the solar heating device to the second hot water cycle, and a second hot water cycle for transferring hot water transferred by the first hot water cycle to a water use terminal.
This solar heating system can make full use of solar energy heat water, then carry the position that is close to the water end with hot water through a plurality of hydrologic cycle pipelines, need not to drain solar heating device to the cold water between the water end, can make the water that carries to the water end remain at suitable temperature all the time, thereby when the user needs to use hot water, make hot water can in time carry to the water end, the user need not to wait for a long time, improve solar device's utilization efficiency, improve user water use comfort level simultaneously.
The solar heating device comprises a solar heat collecting device 10, a heat exchanger 11 and a fourth circulating water pump 12, wherein the solar heat collecting device 10, the heat exchanger 11 and the fourth circulating water pump 12 form heat exchange circulation, and the heat exchanger 11 is in heat exchange connection with the first hot water circulation. When the water in the first hot water circulation needs to be heated, the fourth circulating water pump 12 can be controlled to operate, so that after the working medium in the heat exchanger 11 flows through the solar heat collection device 10 to be heated, heat exchange is performed between the working medium in the heat exchanger 11 and the water in the first hot water circulation, heat absorbed by the solar heat collection device 10 is transferred into the first hot water circulation, the utilization efficiency of solar energy is improved, the utilization of solar energy is more reasonable, hot water with enough temperature in the first hot water circulation can be effectively ensured, and the hot water use requirement of a user is met.
Referring to fig. 1 in combination, according to a first embodiment of the present invention, a first hot water circulation includes a first water tank 1, a first circulating water pump 2 and a second water tank 3, a solar heating device is used to heat water in the first water tank 1, and the first circulating water pump 2 is used to pump water from the first water tank 1 into the second water tank 3. Wherein first water tank 1 sets up in the position that is close to solar heating device, and second water tank 3 sets up in the position that is close to the water end to can shorten solar heating device's heat transfer distance through the cooperation of first water tank 1 and second water tank 3, and the water supply distance between water source and the water end, reduce the pipeline length between water source and the water end, reduce unheated water yield, make the user can use the hot water that satisfies the requirement fast, improve user's use comfort. Because the first water tank 1, the first circulating water pump 2 and the second water tank 3 form a first hot water circulation, heat can be transferred to the second water tank 3 through the first hot water circulation, so that hot water can be timely supplemented into the second water tank 3 which is closer to the water use end, the conveying path of the hot water is shortened, and the hot water can quickly reach the water use end.
Preferably, the second hot water circulation includes a second water tank 3, a second circulating water pump 4, and a water delivery pipe 5, the water delivery pipe 5 is used for delivering hot water to the water use end, the second circulating water pump 4 is disposed on the water delivery pipe 5, and the water delivery pipe 5 is selectively communicated with the second water tank 3 or the water use end. First hot water circulation and second hot water circulation form the intersection through second water tank 3 for hot water in the first water tank 1 can in time carry the water end through second water tank 3, and timeliness when improving hot water and using improves user's use experience.
In this embodiment, the first water tank 1 includes a first water inlet and a first water outlet, the second water tank 3 includes a second water inlet, a second water outlet and a third water outlet, the first water inlet is connected to the second water outlet, the first water outlet is connected to the water inlet end of the first circulating water pump 2, the water outlet end of the first circulating water pump 2 is connected to the second water inlet of the second water tank 3, the water inlet end of the second water tank 3 is connected to the third water outlet, and the water outlet end of the second water tank 3 is selectively communicated with the second water inlet or water use end of the second water tank 3 through the water delivery pipeline 5. When the user does not need to use hot water, the water outlet end of the second water tank 3 can be controlled to be communicated with the second water inlet of the second water tank 3 through the water conveying pipeline 5, so that flowing circulation is formed, hot water in the second water tank 3 can circulate in the water conveying pipeline 5, and when the user needs to use hot water, the water outlet end of the second water tank 3 can be controlled to be communicated with the water using end through the water conveying pipeline 5, so that hot water can be provided for the user in time. The water supply device is used for supplying hot water to the water supply end through the water conveying pipeline 5 all the time, so that when a user supplies water to the water supply end through the water conveying pipeline 5, the hot water in the water conveying pipeline 5 can be supplied to the water supply end in time, the user can use the hot water without waiting, and the use comfort of the user is improved.
Preferably, a first temperature sensor 6 for detecting the water temperature in the first water tank 1 is provided at the first water tank 1, a second temperature sensor 7 for detecting the water temperature in the second water tank 3 is provided at the second water tank 3, and the hot water supply device controls the first hot water cycle and the second hot water cycle according to the water temperature detected by the first temperature sensor 6 and the water temperature detected by the second temperature sensor 7.
Referring to fig. 2 in combination, according to a second embodiment of the present invention, the hot water supply apparatus includes a first water tank 1, a second water tank 3, and a third circulating water pump 8, an inlet end of the third circulating water pump 8 is selectively communicated with the first water tank 1 and the second water tank 3, the first water tank 1, the third circulating water pump 8, and the second water tank 3 form a first hot water cycle, the second water tank 3, and the third circulating water pump 8 form a second hot water cycle. In the present embodiment, the first hot water circulation and the second hot water circulation share one water pump, i.e., the third circulating water pump 8, and therefore, it is necessary to adjust the operating states of the first hot water circulation and the second hot water circulation by adjusting the running path of the third circulating water pump 8.
Preferably, the inlet end of the third circulating water pump 8 is selectively communicated with the first water tank 1 or the second water tank 3 through a three-way valve 9, and the water outlet end of the third circulating water pump 8 is provided with a waterway temperature sensor. In this embodiment, by adjusting the communication state of the three-way valve 9, the flow paths between the third circulating water pump 8 and the first water tank 1 and the second water tank 3 can be adjusted, so that the third circulating water pump 8 can selectively provide power for the first hot water circulation or the second hot water circulation, and different pumping requirements can be realized.
Referring to fig. 3 in combination, a control method of a solar heating system according to an embodiment of the present invention includes: acquiring the water temperature T1 of the water delivery pipeline 5 of the second hot water circulation for supplying hot water to the water use end; detecting a difference between the water temperature T1 in the water delivery pipeline 5 and the target water temperature TM 1; when the difference between the water temperature T1 in the water pipe 5 and the target water temperature TM1 is larger than the preset range, the water in the water pipe 5 is heated. When the difference between the water temperature T1 in the water delivery pipeline 5 and the target water temperature TM1 is greater than the preset range, it is indicated that the water temperature in the water delivery pipeline 5 is lower than the target value, when the user uses water, it is difficult to ensure that the temperature of the water reserved in the water delivery pipeline 5 can meet the requirement of the user when the water is delivered to the water use end, and the water outlet temperature of the water use end can be used only by discharging a certain amount of low-temperature water to meet the requirement, so that the comfort level of the user can be reduced, and therefore, the hot water in the water delivery pipeline 5 needs to be heated at the moment, the water temperature in the water delivery pipeline 5 is improved, and the difference between the water temperature in the water delivery pipeline 5 and the target water temperature TM1 is controlled within the preset range, so that the user can realize instant hot water supply.
Preferably, the step of heating the water in the water delivery line 5 comprises: acquiring the water temperature T2 in the second water tank 3; detecting a difference between the water temperature T2 in the second water tank 3 and the water temperature T1 in the water delivery pipeline 5; when the difference between the water temperature T2 in the second water tank 3 and the water temperature T1 in the water delivery pipeline 5 is larger than a preset range, controlling the second hot water circulation to run, and delivering the hot water in the second water tank 3 to the water delivery pipeline 5. When the difference between the water temperature T2 in the second water tank 3 and the water temperature T1 in the water conveying pipeline 5 is larger than the preset range, the fact that the hot water in the second water tank 3 is not circulated in time and heat is conveyed into the water conveying pipeline 5 is indicated, so that the hot water in the second water tank 3 needs to be controlled to flow to the water conveying pipeline 5 under the driving of the second hot water circulation, the water temperature T1 at the water conveying pipeline 5 is guaranteed to meet the use requirement, a user can use the hot water without waiting or only with little waiting time, and the use experience of the user is improved.
The step of controlling the second hot water circulation operation to deliver the hot water in the second water tank 3 to the water delivery pipe 5 further includes: the first circulating water pump 2 controlling the first hot water circulation stops running; controlling the second circulating water pump 4 of the second hot water circulation to operate; the flow circulation of the hot water in the second water tank 3 to the water delivery pipeline 5 is controlled by the second circulating water pump 4.
The step of heating the water in the water pipe 5 further comprises: acquiring the water temperature T3 of the first water tank 1; acquiring the water temperature T2 of the second water tank 3; detecting a difference between the water temperature T3 of the first water tank 1 and the water temperature T2 of the second water tank 3; when the difference between the water temperature T3 of the first water tank 1 and the water temperature T2 of the second water tank 3 is larger than a preset range, the first hot water circulation operation is controlled, and the hot water in the first water tank 1 is conveyed to the second water tank 3.
The step of controlling the second hot water circulation operation to deliver the hot water in the second water tank 3 to the water delivery pipe 5 further includes: the control three-way valve 9 is communicated with the third circulating water pump 8 and the second water tank 3; the third circulating water pump 8 is controlled to operate, so that hot water circularly flows among the three-way valve 9, the third circulating water pump 8, the second water tank 3 and the water delivery pipeline 5.
The step of heating the water in the water pipe 5 further comprises: the control three-way valve 9 is communicated with the third circulating water pump 8 and the first water tank 1; the third circulating water pump 8 is controlled to operate, so that hot water circularly flows among the first water tank 1, the three-way valve 9, the third circulating water pump 8 and the second water tank 3.
The control method further comprises the following steps: acquiring the water temperature T3 of the first water tank 1; detecting a difference value between the water temperature T3 of the first water tank 1 and a preset water tank water temperature TM 2; when the difference between the water temperature T3 of the first water tank 1 and the preset water tank water temperature TM2 is greater than the preset range, the fourth circulating water pump 12 is controlled to operate, so that the solar heat collecting device 10 heats the water in the first water tank 1.
Preferably, a temperature sensor for detecting the water temperature T4 at the solar heat collecting device 10 is provided at the solar heat collecting device 10.
When the solar heating system of the first embodiment is used for control, it includes the following three steps:
1. heating control of the first water tank 1: if the preset water tank water temperature TM2-T3 of the first water tank 1 is not less than deltaT 1 and T4-T3 is not less than deltaT 2 which are continuously detected in the time T1, the fourth circulating water pump 12 is started after the time T2, and the first water tank 1 is continuously heated by utilizing solar energy. If the preset water tank temperature TM2-T3 of the first water tank 1 is smaller than deltaT 1 or T4-T3 is smaller than deltaT 3 continuously detected in the time T3, the fourth circulating water pump 12 is turned off after the time T4.
2. The second water tank 3 mixes the hot water control: if T3-T2 is detected to be more than or equal to DeltaT 4 continuously in the time T6, the first circulating water pump 2 is started after the time T5, the hot water in the first water tank 1 is mixed with the water in the second water tank 3, the utilization rate of the solar device is improved, and continuous and sufficient hot water use is provided for a large number of people concentration places. If T3-T2 < DeltaT 4 and the preset water temperature TM3-T2 < DeltaT 5 of the second water tank 3 are detected continuously in T7, the fact that the water in the first water tank 1 and the water in the second water tank 3 are heated in a mixed mode and meet the requirements set by a user is indicated, the first circulating water pump 2 is turned off after T8.
3. Waterway mixed hot water control: if the preset water tank water temperature TM3-T2 of the second water tank 3 is continuously detected within T8 and is smaller than delta T5, the second circulating water pump 4 is started after T9, water in the water conveying pipeline 5 is mixed with hot water in the second water tank 3, the water in the water conveying pipeline 5 is preheated, hot water is provided for a user at any time, after the second circulating water pump 4 is started, the continuous operation time T10 and the intermittent operation time T11 of the starting time period are set, the unnecessary operation of the second circulating water pump 4 is continued after the mixed heating of water in a waterway reaches the target temperature is avoided, the intermittent operation time is set for control, and the electricity fee is saved. If the preset water temperature TM3-T2 of the second water tank 3 is continuously detected to be more than or equal to deltaT 6 in the time T8, the circulating water pump 3 is turned off in the time T12, so that the water with lower water temperature in the second water tank 3 is prevented from being conveyed into the water conveying pipeline 5, the water in the second water tank 3 is required to be heated by solar energy at the moment, and after the water temperature in the second water tank 3 reaches a set value, the hot water in the second water tank 3 is conveyed into the water conveying pipeline 5 for mixing.
When the solar heating system of the second embodiment is used for control, it includes the following three steps:
1. heating control of the first water tank 1: consistent with the control of the first embodiment.
2. The second water tank 3 mixes the hot water control: if T3-T1 is detected to be more than or equal to DeltaT 4 continuously in T6, the electric three-way valve is tangential, so that the first hot water is circularly communicated, the third circulating water pump 8 is started after T5, and the hot water of the first water tank 1 is mixed with the water of the second water tank 3. If T3-T1 is smaller than DeltaT 4 and the target water temperature TM1-T1 is smaller than DeltaT 5 continuously detected in T7, the fact that the hot water in the first water tank 1 and the water in the second water tank 3 are mixed and heated and meet the temperature requirement set by a user is indicated, the third circulating water pump 8 is closed after T8, and the electric three-way valve is reversed, so that the second hot water is circularly communicated.
3. Waterway mixed hot water control: under normal conditions, the electric three-way valve is reversed to enable the second hot water to be circularly communicated, at the moment, if the target water temperature TM1-T1 is detected to be less than delta T5 continuously in T8 time, the third circulating water pump 8 is started after T9 time, water in the water conveying pipeline 5 is mixed with hot water in the second water tank 3, the water in the water conveying pipeline 5 is preheated, hot water is provided for a user at any time, after the third circulating water pump 8 is started, the continuous operation time T10 of the starting time period and the intermittent operation time T11 of the starting time period are set, unnecessary operation of the third circulating water pump 8 is continued after the water in the water conveying pipeline 5 is heated to reach the target temperature, the intermittent operation time is set for control, and the electricity cost is saved. If the target water temperature TM1-T1 is not less than delta T6 is continuously detected in the time T12, the third circulating water pump 8 is turned off in the time T12, the water in the second water tank 3 is heated to the set temperature through the solar heat collecting device, and then the second hot water circulation is operated, so that the hot water meeting the use temperature is conveyed into the water conveying pipeline 5, and the hot water meeting the use requirement of a user is conveyed to the water use end in time.
The time periods t1 to t9 and t12 are program set values, generally default to 5-10s, and t10 and t11 are respectively continuous running time and interval running time set by the water pump, and generally default to 20min.
The temperature differences delta T1, delta T2, delta T3, delta T4, delta T5 and delta T6 are program set values, and are designed according to the requirements of users and the actual running conditions of the unit.
Of course, the above is a preferred embodiment of the present invention. It should be noted that it will be apparent to those skilled in the art that several modifications and adaptations can be made without departing from the general principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (11)
1. The control method of the solar heating system is characterized in that the solar heating system comprises a solar heating device and a hot water supply device, the solar heating device is used for heating hot water of the hot water supply device, the hot water supply device comprises a first hot water circulation and a second hot water circulation, the first hot water circulation comprises a first water tank (1), a first circulating water pump (2) and a second water tank (3), the solar heating device is used for heating water in the first water tank (1), the first circulating water pump (2) is used for pumping water of the first water tank (1) into the second water tank (3), the first hot water circulation is used for conveying hot water in the second water tank (3) heated by the solar heating device to the second hot water circulation, the second hot water circulation is used for conveying hot water conveyed by the first hot water circulation to a water supply end, the second hot water circulation comprises a second water tank (3), a second circulating water pump (4) and a water conveying pipeline (5), the water conveying pipeline (5) is used for conveying hot water in the first water circulation end (3) to the water conveying pipeline (5), and the water conveying pipeline (5) can be selectively communicated with the water supply end (5) through the water conveying pipeline (5):
acquiring the water temperature in a water delivery pipeline (5) of the second hot water circulation for supplying hot water to a water use end;
detecting a difference between the water temperature in the water delivery pipeline (5) and the target water temperature;
when the difference between the water temperature in the water delivery pipeline (5) and the target water temperature is larger than a preset range, heating the water in the water delivery pipeline (5);
the step of heating the water in the water delivery pipeline (5) comprises the following steps:
acquiring the water temperature in the second water tank (3);
detecting a difference between the water temperature in the second water tank (3) and the water temperature in the water delivery pipeline (5);
when the difference between the water temperature in the second water tank (3) and the water temperature in the water delivery pipeline (5) is larger than a preset range, controlling the second hot water to circulate, and delivering the hot water in the second water tank (3) to the water delivery pipeline (5).
2. A control method according to claim 1, characterized in that the step of controlling the second hot water circulation operation to deliver hot water in the second water tank (3) to the water delivery line (5) further comprises:
the first circulating water pump (2) controlling the first hot water circulation stops running;
controlling the second circulating water pump (4) of the second hot water circulation to operate;
and the flow circulation of the hot water in the second water tank (3) to the water delivery pipeline (5) is controlled by the second circulating water pump (4).
3. The control method according to claim 2, characterized in that the step of heating the water in the water transport line (5) further comprises:
acquiring the water temperature of the first water tank (1);
acquiring the water temperature of the second water tank (3);
detecting a difference between the water temperature of the first water tank (1) and the water temperature of the second water tank (3);
when the difference between the water temperature of the first water tank (1) and the water temperature of the second water tank (3) is larger than a preset range, the first hot water circulation operation is controlled, and the hot water in the first water tank (1) is conveyed to the second water tank (3).
4. A control method according to claim 1, characterized in that the step of controlling the second hot water circulation operation to deliver hot water in the second water tank (3) to the water delivery line (5) further comprises:
the control three-way valve (9) is communicated with the third circulating water pump (8) and the second water tank (3);
and controlling the third circulating water pump (8) to run, so that hot water circularly flows among the three-way valve (9), the third circulating water pump (8), the second water tank (3) and the water conveying pipeline (5).
5. The control method according to claim 4, characterized in that the step of heating the water in the water transport line (5) further comprises:
the control three-way valve (9) is communicated with the third circulating water pump (8) and the first water tank (1);
and controlling the third circulating water pump (8) to run so that hot water circularly flows among the first water tank (1), the three-way valve (9), the third circulating water pump (8) and the second water tank (3).
6. The control method according to claim 1, characterized in that the control method further comprises:
acquiring the water temperature of the first water tank (1);
detecting a difference value between the water temperature of the first water tank (1) and the water temperature of a preset water tank;
when the difference between the water temperature of the first water tank (1) and the water temperature of the preset water tank is larger than a preset range, the fourth circulating water pump (12) is controlled to operate, so that the solar heat collection device (10) heats the water in the first water tank (1).
7. The control method according to claim 1, characterized in that the first water tank (1) comprises a first water inlet and a first water outlet, the second water tank (3) comprises a second water inlet, a second water outlet and a third water outlet, the first water inlet is connected to the second water outlet, the first water outlet is connected to the water inlet end of the first circulating water pump (2), the water outlet end of the first circulating water pump (2) is connected to the second water inlet of the second water tank (3), the water inlet end of the second water tank (3) is connected to the third water outlet, and the water outlet end of the second water tank (3) is selectively communicated with the second water inlet or the water using end of the second water tank (3) through the water conveying pipeline (5).
8. The control method according to claim 1, characterized in that a first temperature sensor (6) for detecting the water temperature in the first water tank (1) is provided at the first water tank (1), a second temperature sensor (7) for detecting the water temperature in the second water tank (3) is provided at the second water tank (3), and the hot water supply device controls the first hot water cycle and the second hot water cycle according to the water temperature detected by the first temperature sensor (6) and the water temperature detected by the second temperature sensor (7).
9. The control method according to claim 1, characterized in that the hot water supply device comprises a first water tank (1), a second water tank (3) and a third circulating water pump (8), an inlet end of the third circulating water pump (8) being selectively communicated with the first water tank (1) and the second water tank (3), the first water tank (1), the third circulating water pump (8), the second water tank (3) forming the first hot water circulation, the second water tank (3), the third circulating water pump (8) forming the second hot water circulation.
10. The control method according to claim 9, characterized in that an inlet end of the third circulating water pump (8) is selectively communicated with the first water tank (1) or the second water tank (3) through a three-way valve (9), and a water outlet end of the third circulating water pump (8) is provided with a waterway temperature sensor.
11. The control method according to any one of claims 1 to 10, characterized in that the solar heating device comprises a solar heat collecting device (10), a heat exchanger (11) and a fourth circulating water pump (12), the solar heat collecting device (10), the heat exchanger (11) and the fourth circulating water pump (12) forming a heat exchanging cycle, the heat exchanger (11) being in heat exchanging connection with the first hot water cycle.
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| CN201711072498.2A CN107796041B (en) | 2017-11-03 | 2017-11-03 | Control method of solar heating system |
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| CN201711072498.2A CN107796041B (en) | 2017-11-03 | 2017-11-03 | Control method of solar heating system |
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| CN107796041B true CN107796041B (en) | 2023-07-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218920A (en) * | 2003-01-14 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Water heater |
| CN101408324A (en) * | 2008-09-06 | 2009-04-15 | 甘肃天鸿金运置业有限公司 | Stack assembling villa residential building solar energy-gas wall hanging furnace hot water system |
| CN101498467A (en) * | 2009-01-23 | 2009-08-05 | 曼瑞德自控系统（乐清）有限公司 | Double-heat source dwelling house comfortable integration system based on solar energy |
| CN103423892A (en) * | 2013-07-31 | 2013-12-04 | 苏州开来新能源有限公司 | Instant heating type solar water heater control device |
| CN104764071A (en) * | 2015-04-15 | 2015-07-08 | 白峻光 | Single-house heat supply system |
| CN207648929U (en) * | 2017-11-03 | 2018-07-24 | 珠海格力电器股份有限公司 | Solar energy heat distribution system |
-
2017
- 2017-11-03 CN CN201711072498.2A patent/CN107796041B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218920A (en) * | 2003-01-14 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Water heater |
| CN101408324A (en) * | 2008-09-06 | 2009-04-15 | 甘肃天鸿金运置业有限公司 | Stack assembling villa residential building solar energy-gas wall hanging furnace hot water system |
| CN101498467A (en) * | 2009-01-23 | 2009-08-05 | 曼瑞德自控系统（乐清）有限公司 | Double-heat source dwelling house comfortable integration system based on solar energy |
| CN103423892A (en) * | 2013-07-31 | 2013-12-04 | 苏州开来新能源有限公司 | Instant heating type solar water heater control device |
| CN104764071A (en) * | 2015-04-15 | 2015-07-08 | 白峻光 | Single-house heat supply system |
| CN207648929U (en) * | 2017-11-03 | 2018-07-24 | 珠海格力电器股份有限公司 | Solar energy heat distribution system |
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