CN105091355A - Combined type photovoltaic/photothermal solar water heating system - Google Patents
Combined type photovoltaic/photothermal solar water heating system Download PDFInfo
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- CN105091355A CN105091355A CN201410463228.4A CN201410463228A CN105091355A CN 105091355 A CN105091355 A CN 105091355A CN 201410463228 A CN201410463228 A CN 201410463228A CN 105091355 A CN105091355 A CN 105091355A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A combined type photovoltaic/photothermal solar water heating system is mainly composed of a water heating type photovoltaic/photothermal module, a solar water heating heat collector, a direct-current water pump, an electric auxiliary heating device, temperature sensors, flow sensors, electromagnetic valves and a controller. The combined type photovoltaic/photothermal solar water heating system is characterized in that the water heating type photovoltaic/photothermal module is connected with the solar water heating heat collector in series or in parallel by switching on the corresponding electromagnetic valves so that the water supply temperature of hot water can be controlled; electric energy generated by the water heating type photovoltaic/photothermal module can be supplied to the direct-current water pump and the electric auxiliary heating device; the controller analyzes signals of the temperature sensors and the flow sensors in real time so as to judge whether the electromagnetic valves are switched on or not, the opening degrees of the electromagnetic valves, whether the electric auxiliary heating device needs to be started or not, and the heating power needing to be provided. The combined type photovoltaic/photothermal solar water heating system is advantageous in that the problems that a traditional solar heat collector system is large in hot water temperature fluctuation, not liable to control and large in heat loss, and the photoelectric converting efficiency of the water heating type photovoltaic/photothermal module is low are solved, the overall utilization efficiency of solar energy is improved, and the application range is widened.
Description
Technical field
The present invention relates to a kind of compound photovoltaic/photo-thermal solar water heating system, belong to Solar use and field of heating ventilation air conditioning.
Background technology
Solar energy heating technology is applied significantly, but the lower extensive application limiting photovoltaic module of the photoelectric transformation efficiency of photovoltaic module, and wherein the rising of photovoltaic module temperature is one of key factor of its photoelectric transformation efficiency reduction.In order to make the temperature of photovoltaic module remain in certain scope, generally by heat catalysis (water or air), the waste heat that photovoltaic module produces is taken away, and carry out recycling thus improve the overall utilization of solar energy.Compared with air, the heat transfer coefficient of water and specific heat are all larger, thus be that medium carries out the photovoltaic/photo-thermal assembly (hot-water type) of energy regenerating not only good cooling effect but also solar energy utilization ratio are also higher, so be the most frequently used one cooling and energy regenerating mode with water.The hot water temperature that hot-water type photovoltaic/photo-thermal assembly can provide is lower, do not meet winter heating system and summer absorption system temperature requirement, often need conventional energy resource such as electric energy or natural gas to carry out post bake.On the other hand, in the area that solar energy irradiation is higher, the supply water temperature that solar hot water heat collector produces sometimes is too high, even can reach the boiling point of water.When temperature requirement higher than heating system of the supply water temperature of solar hot water heat collector, need the mode mixed mutually by cold water and hot water to make it lower the temperature, cause a large amount of heat-energy losses.In sum, hot-water type photovoltaic/photo-thermal assembly and solar hot water heat collector provide during hot water to building HVAC separately and there is the problem that water temperature is wayward and solar energy high thermal efficiency is low.
Summary of the invention
In order to improve the utilization rate of solar energy, improving the problem that hot-water type photovoltaic/photo-thermal assembly supply water temperature is too low and some areas solar hot water heat collector supply water temperature is too high, the invention provides a kind of novel compound photovoltaic/photo-thermal solar water heating system.It is high that this system has photoelectric transformation efficiency, and supply water temperature is adjustable, and thermal loss is few, and the solar energy thermal efficiency is high and save the advantages such as conventional energy resource.
The chief component of compound photovoltaic of the present invention/photo-thermal solar water heating system comprises: hot-water type photovoltaic/photo-thermal assembly, solar hot water heat collector, DC water pump, electric auxiliary heating device, temperature sensor, flow sensor, magnetic valve and controller.Wherein hot-water type photovoltaic/photo-thermal assembly and solar hot water heat collector connect into loop, by the unlatching of associated solenoid valve or close and can realize series model and paralleling model.The aperture of magnetic valve can control the hot water flow entering hot-water type photovoltaic/photo-thermal assembly and solar hot water heat collector, and then realizes controlling in certain temperature range hot water supply water temperature.The direct current energy that hot-water type photovoltaic/photo-thermal assembly produces can be used for powering to DC water pump and electric auxiliary heating device.Electric auxiliary heating device can provide different and adds heat by changing its heating power.Temperature sensor and flow sensor are used for the temperature of monitoring system position and flow respectively.Controller has the function that real-time signals collecting, analytical calculation and signal export, can by analyzing the signal of temperature sensor and flow sensor, to judge whether each magnetic valve is opened with aperture size and the need of the heating power opening electric auxiliary heating device and need provide.
Accompanying drawing explanation
Fig. 1 compound photovoltaic/photo-thermal solar water heating system schematic diagram.
In Fig. 1: 1. water inlet, 2. DC water pump, 3. hot-water type photovoltaic/photo-thermal assembly, 4. solar hot water heat collector, 5. electric auxiliary heating device, 6. delivery port, 7. flow sensor, 8. temperature sensor, 9. magnetic valve.
Detailed description of the invention
The specific embodiment of the present invention is as follows.
Compound photovoltaic/photo-thermal solar water heating system has by day when solar radiation and runs, and during system initial start, hot-water type photovoltaic/photo-thermal assembly (3) and solar hot water heat collector (4) are in series model.Cold water is entered by water inlet (1), then enter successively under the promotion of DC water pump (2) in hot-water type photovoltaic/photo-thermal assembly (3), solar hot water heat collector (4) and electric auxiliary heating device (5) and heat, then hot water flows out via delivery port (6).By the water temperature in Real-Time Monitoring solar hot water heat collector (4) exit, system is regulated, make the water temperature at delivery port (6) place meet the requirement of supply water temperature.
Operating mode 1: the water temperature of monitoring when solar hot water heat collector (4) outlet temperature sensor (803) is prescribed a time limit lower than setting the lower of supply water temperature scope, and hot-water type photovoltaic/photo-thermal assembly (3) and solar hot water heat collector (4) are in series model and need open electric auxiliary heating device.Magnetic valve (901), (902) and (904) are closed, and magnetic valve (903) is opened and is in full-gear.The flow that the water temperature of being monitored by delivery port (6) place temperature sensor (804) and water inlet (1) place flow sensor (701) are monitored can judge the heating power needing to be supplied to electric auxiliary heating device (4).
Operating mode 2: when the water temperature that solar hot water heat collector (4) outlet temperature sensor (803) is monitored is positioned at setting supply water temperature scope, hot-water type photovoltaic/photo-thermal assembly (3) and solar hot water heat collector (4) are in series model.Magnetic valve (901) and (902) are closed, and magnetic valve (903) and (904) are opened and are in full-gear, and electric auxiliary heating device (5) is closed.
Operating mode 3: the water temperature of monitoring when solar hot water heat collector (4) outlet temperature sensor (802) is prescribed a time limit higher than setting the upper of supply water temperature scope, and hot-water type photovoltaic/photo-thermal assembly (3) and solar hot water heat collector (4) are in paralleling model.Magnetic valve (901) and (902) are opened, and magnetic valve (904) is opened and is in full-gear, and magnetic valve (903) cuts out, and electric auxiliary heating device (5) is closed.The water temperature that the water temperature of being monitored by monitoring hot-water type photovoltaic/photo-thermal assembly (3) outlet temperature sensor (802), solar hot water heat collector (4) outlet temperature sensor (803) are monitored and the water temperature that delivery port (6) place temperature sensor (804) monitors can judge the aperture of magnetic valve (901) and (902).
Claims (4)
1. can be used for compound photovoltaic/photo-thermal solar water heating system that heating system and absorbing type refrigeration air-conditioning system provide hot water, it is characterized in that: system is made up of hot-water type photovoltaic/photo-thermal assembly, solar hot water heat collector, DC water pump, electric auxiliary heating device, temperature sensor, flow sensor, magnetic valve and controller.
2. compound photovoltaic according to claim 1/photo-thermal solar water heating system, it is characterized in that: hot-water type photovoltaic/photo-thermal assembly and solar hot water heat collector connect into loop, by the unlatching of associated solenoid valve or close and can realize paralleling model and series model; The aperture of magnetic valve can control the hot water flow entering hot-water type photovoltaic/photo-thermal assembly and solar hot water heat collector, and then realizes controlling in certain temperature range hot water supply water temperature.
3. compound photovoltaic according to claim 1/photo-thermal solar water heating system, is characterized in that: the direct current energy that hot-water type photovoltaic/photo-thermal assembly produces can be used for powering to DC water pump and electric auxiliary heating device.
4. compound photovoltaic according to claim 1/photo-thermal solar water heating system, it is characterized in that: controller can by analyzing the signal of temperature sensor and flow sensor, to judge whether each magnetic valve is opened with aperture size and the need of the heating power opening electric auxiliary heating device and need provide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463228.4A CN105091355A (en) | 2014-05-08 | 2014-09-12 | Combined type photovoltaic/photothermal solar water heating system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190864 | 2014-05-08 | ||
| CN201410463228.4A CN105091355A (en) | 2014-05-08 | 2014-09-12 | Combined type photovoltaic/photothermal solar water heating system |
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| Publication Number | Publication Date |
|---|---|
| CN105091355A true CN105091355A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410463228.4A Pending CN105091355A (en) | 2014-05-08 | 2014-09-12 | Combined type photovoltaic/photothermal solar water heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473290A (en) * | 2017-09-27 | 2017-12-15 | 上海深研智能科技有限公司 | Water purifier Hybrid Heating system and its control method |
| CN107990567A (en) * | 2017-12-21 | 2018-05-04 | 天津英利新能源有限公司 | A kind of solar generating heat collecting system and its control method |
| CN109764560A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of energy resource system and its control method |
-
2014
- 2014-09-12 CN CN201410463228.4A patent/CN105091355A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473290A (en) * | 2017-09-27 | 2017-12-15 | 上海深研智能科技有限公司 | Water purifier Hybrid Heating system and its control method |
| CN107990567A (en) * | 2017-12-21 | 2018-05-04 | 天津英利新能源有限公司 | A kind of solar generating heat collecting system and its control method |
| CN109764560A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of energy resource system and its control method |
| CN109764560B (en) * | 2019-01-09 | 2020-11-27 | 青岛海尔空调器有限总公司 | Energy system and control method thereof |
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Application publication date: 20151125 |