CN209676196U - A kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat - Google Patents
A kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat Download PDFInfo
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- CN209676196U CN209676196U CN201920916500.8U CN201920916500U CN209676196U CN 209676196 U CN209676196 U CN 209676196U CN 201920916500 U CN201920916500 U CN 201920916500U CN 209676196 U CN209676196 U CN 209676196U
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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
- Y02B10/10—Photovoltaic [PV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
A kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat, is related to a kind of photovoltaic and photothermal solar integral system.The utility model be the temperature of existing solar energy photovoltaic panel is solved seriously to restrict the incident photon-to-electron conversion efficiency of itself, and solar energy photovoltaic panel generate heat waste the technical issues of.The utility model is solar energy photovoltaic panel cooling using capillary network as heat exchanger, in addition, the specific heat of water is big, water greatly improves heat transfer efficiency as temperature-reducing medium compared with air.During using heat, on the one hand exchange heat with city water-feeding system the utility model preparation domestic hot-water, reduces building energy consumption；On the other hand plant root is heated to promote the growth and development of plant, is applied to urban beautification.Tthe utility model system performance is more excellent, and after coolant flat area photovoltaic panel, the generating efficiency of photovoltaic panel improves 10% or more.
Description
Technical field
The utility model relates to a kind of photovoltaic and photothermal solar integral systems.
Background technique
Due to fossil energy crisis and environmental pollution is getting worse, and the development and utilization of renewable energy is increasingly becoming
The research hotspot of people.The available energy has 99.98% from solar energy on the earth, and solar-energy photo-voltaic cell is defeated by its
The reserves unlimitedness feature for entering luminous energy, at home and abroad increasingly has been favored by people.But in its application process, solar-electricity
The generating efficiency in pond can be reduced with the raising of battery surface temperature, therefore have expert to propose that recycling this part makes photovoltaic panel temperature
Spend raised heat.Theoretical research shows that theoretical maximum transfer efficiency of the single crystal silicon solar cell at 0 DEG C only has 30% left side
The right side, and the temperature of photovoltaic cell seriously restricts the incident photon-to-electron conversion efficiency of itself.Under conditions of light intensity is certain, work as silion cell
Its output power will decline when own temperature increases, studies have shown that temperature of photovoltaic battery pack is every to increase 1 DEG C, photoelectric conversion effect
Rate reduces by 0.5%.In practical applications, silion cell transfer efficiency is about 12%~17% under standard conditions, is irradiated to battery table
83% or more solar energy on face fails to be converted to useful energy, and has quite a few energy to transform into thermal energy, makes electricity
Pond temperature increases, and battery efficiency is caused to decline.
To make battery efficiency be maintained at higher level as far as possible, can cell backside lay fluid channel take away heat with
Reduce battery temperature.Early stage research generally cools down solar battery with air-cooled panel, but air specific heat is small, heat absorption low efficiency,
The heat that air working medium is collected into is again more dispersed, it is difficult to utilize, if be directly discharged into the waste that environment causes partial heat energy again.
Therefore, some countries strengthen the research to cooling means and UTILIZATION OF VESIDUAL HEAT IN, and water is used to conduct heat as cooling medium, but are selecting
The increase of cost is usually associated with when selecting heat-exchanger rig, heat exchange and cooling effect are extremely limited, and simultaneity factor performance is by extraneous ring
Border influence is very big, these all affect the development and popularization of integrated technique to a certain extent.
In recent years, roof greening becomes the new selection for improving urban ecological environment.Roof planting is in addition to that can improve city ring
Border looks improve civil plantation and working environment quality, moreover it is possible to which insulation reduces indoor refrigeration duty, energy saving, protects simultaneously
Top of building is protected, roofing materials service life is extended.Roof greening is beautiful and clean, energy-saving and emission-reduction, increasingly by people's
It welcomes.The root temperature of plant can directly affect plant growth, and plant root suitable growth temperature is generally 20 DEG C~30 DEG C.It is low
Root temperature reduces moisture absorption, reduces the mineral absorption rate of root, reduces endogenous growth cellulose content；The soil moisture is excessively high and pole
Easily there is the case where root system early ageing, eventually leads to plant early ageing.It can be seen that the root temperature of roof plants is maintained to have in zone of reasonableness
It is significant.
Utility model content
The utility model be to solve existing solar energy photovoltaic panel temperature seriously restrict itself photoelectric conversion effect
Rate, and the technical issues of the heat waste of solar energy photovoltaic panel generation, and a kind of sun using capillary recycling waste heat is provided
It can photovoltaic and photothermal integral system.
The photovoltaic and photothermal solar integral system using capillary recycling waste heat of the utility model is by solar energy
Lie prostrate plate 1, the first capillary network 2, the second capillary network 3, heat-exchanging water tank 4, the first water level sensor 5, controller 6, the first water pump
8, electric heater 9, heating water tank 11, temperature, pressure safety valve 12, third capillary network 14, the second water pump 15, the second water level pass
Sensor 16 and temperature sensor 17 form；
First capillary network 2 is fixed on the outer wall of solar energy photovoltaic panel 1, the water outlet of the first capillary network 2 with
The water inlet of second capillary network 3 is connected to, and the water outlet of the second capillary network 3 is connected to the water inlet of third capillary network 14,
The water outlet of third capillary network 14 is connected to the water inlet of the first capillary network 2, the water outlet of third capillary network 14 and
Second water pump 15 is set on the pipeline between the water inlet of one capillary network 2；
Second capillary network 3 is arranged in heat-exchanging water tank 4, and tap water inlet pipe 7, heat-exchanging water tank 4 are arranged on heat-exchanging water tank 4
The first water level sensor 5 of interior setting, the signal output end of the first water level sensor 5 connect with the signal input part of controller 6, change
The water outlet of boiler 4 is connected to the water inlet of heating water tank 11, the water outlet of heat-exchanging water tank 4 and the water inlet of heating water tank 11
Between pipeline on the first water pump 8 is set, setting electric heater 9, temperature sensor 17 and the second water level pass in heating water tank 11
Sensor 16, and the signal output end of electric heater 9, temperature sensor 17 and the second water level sensor 16 respectively with controller 6
Signal input part connects, and temperature, pressure safety valve 12 and outlet pipe 10 are arranged in heating water tank 11；The third capillary network
14 are embedded in the soil 13 of vegetation.
The utility model devises a set of photovoltaic and photothermal solar integral system using capillary recycling waste heat technology,
The system is divided into endothermic system and thermal desorption system two parts.Endothermic system mainly by solar energy photovoltaic panel 1 and to it cool down the
Two capillary networks 3 composition.Solar energy photovoltaic panel 1 is because irradiation surface temperature constantly rises the sun for a long time, in the second capillary network 3
Circulating water the heat of solar energy photovoltaic panel 1 can continuously be taken away, reduce the temperature on 1 surface of solar energy photovoltaic panel,
With the generating efficiency for maintaining its relatively high.
Thermal desorption system is divided into a heat release and secondary heat release again: a heat release, which refers to, to be absorbed from solar energy photovoltaic panel 1
Heat and city on water carried out in heat-exchanging water tank 4 heat exchange preparation domestic hot-water (on city water by tap water inlet pipe 7 into
Enter heat-exchanging water tank 4, domestic hot-water is drawn by outlet pipe 10 from heating water tank 11), when the temperature of the domestic hot-water of this process preparation
When degree is unable to reach user demand, it can will be heated using the electric heater 9 of heating water tank 11 to reach user demand；It is secondary
Heat release, which refers to, flows through the cooling water that residual temperature is had after a heat release in the soil 13 of vegetation, and regulation plant root, which reaches, stablizes temperature
Spend the growth and development to promote plant.Since capillary is small in size, light weight and cost is low, heat exchange efficiency is high, so absorbing heat and putting
Hot systems all use capillary as heat exchanger.Whole system provides power by water pump.
The utility model in heat-exchanging water tank 4 and heating water tank 11, water temperature and water level all by 6 intelligent control of controller, with
It realizes Automatic system for Building regulation and management, uses manpower and material resources sparingly.
The utility model still uses capillary network as heat-releasing device in secondary thermal desorption system, due to planting the fertilizer of full vegetation
Fertile soil earth heat transmission obtains to be lacked again slowly, and soil layer is deeper, and the soil moisture is influenced smaller by ambient temperature.Capillary herein
It is embedded under vegetation and soil layer, therefore exothermic process is small with variation of ambient temperature influence, can be sufficiently exothermic, effectively maintain system
Stabilization circular flow.The utility model selects the position of vegetation according to the position where solar energy photovoltaic panel 1 nearby, can be with
It is that the vegetation on roof is also possible to the vegetation on ground.Cooling water after secondary heat release turns again to the by the second water pump 15
One capillary network 2 cools down to solar energy photovoltaic panel 1, with secondary circulation.
The advantages of the utility model:
1) the utility model is main energy source use in building with clean energy resource solar energy, and a part directly utilizes irradiation
Photovoltaic power generation is carried out in the sunlight of photovoltaic panel；The heat generated by direct sunlight photovoltaic plate is collected and utilized to another part,
Reduce building energy consumption；
2) the utility model all uses the hair that small in size, light weight and cost is low, heat exchange efficiency is high with thermal desorption system in heat absorption
Tubule net significantly enhances heat-transfer effect as heat-exchanger rig, while as a heat transfer medium using the biggish water of specific heat, guarantees
The photoelectric conversion efficiency of solar energy；
3) cooling water heated in the utility model by photovoltaic panel with domestic water after exchanging heat, and auxiliary vegetation,
To realize the Multi-class propagation of waste heat.
Through experimental study, the photovoltaic and photothermal solar integral system using capillary recycling waste heat of the utility model
Can be more excellent, after coolant flat area photovoltaic panel, the generating efficiency of photovoltaic panel improves 10% or more, the economize on electricity of a thermal desorption system
Amount is 263.90W, and the amount of electricity saving of secondary thermal desorption system is 121.48W, and energy-saving effect is good.
Compared with previous research achievement, this system reduces photovoltaic plate temperature, solves under direct sunlight, in height
The problem of solar energy photovoltaic panel decrease of power generation of warm environment；Primary and secondary thermal desorption system is set, solves photovoltaic panel week
Enclose the problem of waste heat waste heat is difficult to Collection utilization；Heat-exchanger rig using capillary network as heat absorption and thermal desorption system, alleviates
Previous system is usually associated with the increase of cost, heat exchange and the extremely limited problem of cooling effect when selecting heat-exchanger rig；If
Setting heating water tank 11 maintains hot water temperature constant, and capillary official website is arranged under certain thickness soil layer, alleviates systematicness
Can be affected by the external environment very big problem, greatly optimize system schema, and be experimentally confirmed with certain economy
And feasibility.
Instantly China's solar power generation industry Fast Growth has had been started up large-sized photovoltaic power station, photo-thermal power station, distribution
The solar power generation market of the diversification such as photovoltaic power generation and off-network photovoltaic system.Utilize the photovoltaic of capillary recycling waste heat
Photothermal integration system, one provides safeguard for the efficient operation in domestic vast solar power generation market, and two are mentioned using waste heat waste heat
For needed for life.
With going deep into for research, in following photovoltaic and photothermal integral system, heat absorption and thermal desorption system (device) will be with
Automatic control device effectively combines, and so that structure design is gradually tended to be perfect, and may come into ten million house, public building, saves
Energy emission reduction, benefits the whole people.
The utility model is solar energy photovoltaic panel cooling using capillary network as heat exchanger, since capillary is small in size,
It is light-weight, it is at low cost, and its caliber is small and increases heat transfer area, and it is with good economic efficiency.In addition, the specific heat of water
Greatly, water as temperature-reducing medium greatly improves heat transfer efficiency compared with air.The utility model is based on cold emission capillary
Using devising photovoltaic and photothermal integral system, the system structure is unique, easy for installation, runing adjustment is relatively easy.It is utilizing
During heat, on the one hand exchange heat with city water-feeding system preparation domestic hot-water, reduces building energy consumption；On the other hand it heats
Plant root is applied to urban beautification to promote the growth and development of plant.To sum up, light is recycled using capillary in the utility model
The photovoltaic and photothermal solar integral system for lying prostrate the waste heat of plate has more vast application prospect in China, can promote solar energy
What is generated electricity on a large scale is universal and perfect, further decreases building energy consumption, realizes energy-saving and emission-reduction.
The utility model from select the capillary network for possessing good heat transfer capacity as heat-exchanger rig, the sun of design
The integral system that can generate electricity while prepare hot water, can reduce the temperature of photovoltaic cell component, improve the photoelectricity of photovoltaic cell
Transformation efficiency, and it can be provided out thermal energy, to obtain dual income, greatly improve the comprehensive efficiency of solar energy
Rate.
Detailed description of the invention
Fig. 1 is showing for the photovoltaic and photothermal solar integral system using capillary recycling waste heat of specific embodiment one
It is intended to.
Specific embodiment
Specific embodiment 1: present embodiment is a kind of photovoltaic and photothermal solar one for recycling waste heat using capillary
Change system, as shown in Figure 1, be specifically by solar energy photovoltaic panel 1, the first capillary network 2, the second capillary network 3, heat-exchanging water tank 4,
First water level sensor 5, controller 6, the first water pump 8, electric heater 9, heating water tank 11, temperature, pressure safety valve 12, third
Capillary network 14, the second water pump 15, the second water level sensor 16 and temperature sensor 17 form；
First capillary network 2 is fixed on the outer wall of solar energy photovoltaic panel 1, the water outlet of the first capillary network 2 with
The water inlet of second capillary network 3 is connected to, and the water outlet of the second capillary network 3 is connected to the water inlet of third capillary network 14,
The water outlet of third capillary network 14 is connected to the water inlet of the first capillary network 2, the water outlet of third capillary network 14 and
Second water pump 15 is set on the pipeline between the water inlet of one capillary network 2；
Second capillary network 3 is arranged in heat-exchanging water tank 4, and tap water inlet pipe 7, heat-exchanging water tank 4 are arranged on heat-exchanging water tank 4
The first water level sensor 5 of interior setting, the signal output end of the first water level sensor 5 connect with the signal input part of controller 6, change
The water outlet of boiler 4 is connected to the water inlet of heating water tank 11, the water outlet of heat-exchanging water tank 4 and the water inlet of heating water tank 11
Between pipeline on the first water pump 8 is set, setting electric heater 9, temperature sensor 17 and the second water level pass in heating water tank 11
Sensor 16, and the signal output end of electric heater 9, temperature sensor 17 and the second water level sensor 16 respectively with controller 6
Signal input part connects, and temperature, pressure safety valve 12 and outlet pipe 10 are arranged in heating water tank 11；The third capillary network
14 are embedded in the soil 13 of vegetation.
Present embodiment devises a set of photovoltaic and photothermal solar integral system using capillary recycling waste heat technology,
The system is divided into endothermic system and thermal desorption system two parts.Endothermic system mainly by solar energy photovoltaic panel 1 and to it cool down the
Two capillary networks 3 composition.Solar energy photovoltaic panel 1 is because irradiation surface temperature constantly rises the sun for a long time, in the second capillary network 3
Circulating water the heat of solar energy photovoltaic panel 1 can continuously be taken away, reduce the temperature on 1 surface of solar energy photovoltaic panel,
With the generating efficiency for maintaining its relatively high.
Thermal desorption system is divided into a heat release and secondary heat release again: a heat release, which refers to, to be absorbed from solar energy photovoltaic panel 1
Heat and city on water carried out in heat-exchanging water tank 4 heat exchange preparation domestic hot-water (on city water by tap water inlet pipe 7 into
Enter heat-exchanging water tank 4, domestic hot-water is drawn by outlet pipe 10 from heating water tank 11), when the temperature of the domestic hot-water of this process preparation
When degree is unable to reach user demand, it can will be heated using the electric heater 9 of heating water tank 11 to reach user demand；It is secondary
Heat release, which refers to, flows through the cooling water that residual temperature is had after a heat release in the soil 13 of vegetation, and regulation plant root, which reaches, stablizes temperature
Spend the growth and development to promote plant.Since capillary is small in size, light weight and cost is low, heat exchange efficiency is high, so absorbing heat and putting
Hot systems all use capillary as heat exchanger.Whole system provides power by water pump.
Present embodiment in heat-exchanging water tank 4 and heating water tank 11, water temperature and water level all by 6 intelligent control of controller, with
It realizes Automatic system for Building regulation and management, uses manpower and material resources sparingly.
Present embodiment still uses capillary network as heat-releasing device in secondary thermal desorption system, due to planting the fertilizer of full vegetation
Fertile soil earth heat transmission obtains to be lacked again slowly, and soil layer is deeper, and the soil moisture is influenced smaller by ambient temperature.Capillary herein
It is embedded under vegetation and soil layer, therefore exothermic process is small with variation of ambient temperature influence, can be sufficiently exothermic, effectively maintain system
Stabilization circular flow.Present embodiment selects the position of vegetation according to the position where solar energy photovoltaic panel 1 nearby, can be with
It is that the vegetation on roof is also possible to the vegetation on ground.Cooling water after secondary heat release turns again to the by the second water pump 15
One capillary network 2 cools down to solar energy photovoltaic panel 1, with secondary circulation.
The advantages of present embodiment:
1) present embodiment is main energy source use in building with clean energy resource solar energy, and a part directly utilizes irradiation
Photovoltaic power generation is carried out in the sunlight of photovoltaic panel；The heat generated by direct sunlight photovoltaic plate is collected and utilized to another part,
Reduce building energy consumption；
2) present embodiment all uses the hair that small in size, light weight and cost is low, heat exchange efficiency is high with thermal desorption system in heat absorption
Tubule net significantly enhances heat-transfer effect as heat-exchanger rig, while as a heat transfer medium using the biggish water of specific heat, guarantees
The photoelectric conversion efficiency of solar energy；
3) cooling water heated in present embodiment by photovoltaic panel with domestic water after exchanging heat, and auxiliary vegetation,
To realize the Multi-class propagation of waste heat.
Through experimental study, the photovoltaic and photothermal solar integral system using capillary recycling waste heat of present embodiment
Can be more excellent, after coolant flat area photovoltaic panel, the generating efficiency of photovoltaic panel improves 10% or more.
Compared with previous research achievement, this system reduces photovoltaic plate temperature, solves under direct sunlight, in height
The problem of solar energy photovoltaic panel decrease of power generation of warm environment；Primary and secondary thermal desorption system is set, solves photovoltaic panel week
Enclose the problem of waste heat waste heat is difficult to Collection utilization；Heat-exchanger rig using capillary network as heat absorption and thermal desorption system, alleviates
Previous system is usually associated with the increase of cost, heat exchange and the extremely limited problem of cooling effect when selecting heat-exchanger rig；If
Setting heating water tank 11 maintains hot water temperature constant, and capillary official website is arranged under certain thickness soil layer, alleviates systematicness
Can be affected by the external environment very big problem, greatly optimize system schema, and be experimentally confirmed with certain economy
And feasibility.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: first capillary network 2
Supervisor outer diameter be 20mm, wall thickness 2mm；The outer diameter of the capillary of first capillary network 2 is 4.3mm, and wall thickness is
0.8mm.Other are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: second capillary
The outer diameter of the supervisor of pipe network 3 is 20mm, wall thickness 2mm；The outer diameter of the capillary of first capillary network 2 is 4.3mm, wall
Thickness is 0.8mm.Other are the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: the third
The outer diameter of the supervisor of capillary network 14 is 20mm, wall thickness 2mm；The outer diameter of the capillary of first capillary network 2 is
4.3mm, wall thickness 0.8mm.Other are identical as one of specific embodiment one to three.
Specific embodiment 5: present embodiment is unlike specific embodiment four: the water outlet of heat-exchanging water tank 4 with
Setting valve is also needed on pipeline between the water inlet of heating water tank 11.Other are identical as specific embodiment four.
The utility model is verified with following tests:
Test one: this test is a kind of photovoltaic and photothermal solar integral system that waste heat is recycled using capillary, such as Fig. 1
It is shown, specifically by solar energy photovoltaic panel 1, the first capillary network 2, the second capillary network 3, heat-exchanging water tank 4, the first level sensor
Device 5, controller 6, the first water pump 8, electric heater 9, heating water tank 11, temperature, pressure safety valve 12, third capillary network 14,
Two water pumps 15, the second water level sensor 16 and temperature sensor 17 form；
First capillary network 2 is fixed on the outer wall of solar energy photovoltaic panel 1, the water outlet of the first capillary network 2 with
The water inlet of second capillary network 3 is connected to, and the water outlet of the second capillary network 3 is connected to the water inlet of third capillary network 14,
The water outlet of third capillary network 14 is connected to the water inlet of the first capillary network 2, the water outlet of third capillary network 14 and
Second water pump 15 is set on the pipeline between the water inlet of one capillary network 2；
Second capillary network 3 is arranged in heat-exchanging water tank 4, and tap water inlet pipe 7, heat-exchanging water tank 4 are arranged on heat-exchanging water tank 4
The first water level sensor 5 of interior setting, the signal output end of the first water level sensor 5 connect with the signal input part of controller 6, change
The water outlet of boiler 4 is connected to the water inlet of heating water tank 11, the water outlet of heat-exchanging water tank 4 and the water inlet of heating water tank 11
Between pipeline on the first water pump 8 is set, setting electric heater 9, temperature sensor 17 and the second water level pass in heating water tank 11
Sensor 16, and the signal output end of electric heater 9, temperature sensor 17 and the second water level sensor 16 respectively with controller 6
Signal input part connects, and temperature, pressure safety valve 12 and outlet pipe 10 are arranged in heating water tank 11；The third capillary network
14 are embedded in the soil 13 of vegetation.
The a set of photovoltaic and photothermal solar integral system using capillary recycling waste heat technology of this experimental design, this is
System is divided into endothermic system and thermal desorption system two parts.Endothermic system mainly by solar energy photovoltaic panel 1 and to it cool down second mao
Tubule net 3 forms.Solar energy photovoltaic panel 1 is because irradiation surface temperature constantly rises the sun for a long time, the stream in the second capillary network 3
Dynamic water energy continuously takes away the heat of solar energy photovoltaic panel 1, reduces the temperature on 1 surface of solar energy photovoltaic panel, with dimension
Hold its relatively high generating efficiency.
Thermal desorption system is divided into a heat release and secondary heat release again: a heat release, which refers to, to be absorbed from solar energy photovoltaic panel 1
Heat and city on water carried out in heat-exchanging water tank 4 heat exchange preparation domestic hot-water (on city water by tap water inlet pipe 7 into
Enter heat-exchanging water tank 4, domestic hot-water is drawn by outlet pipe 10 from heating water tank 11), when the temperature of the domestic hot-water of this process preparation
When degree is unable to reach user demand, it can will be heated using the electric heater 9 of heating water tank 11 to reach user demand；It is secondary
Heat release, which refers to, flows through the cooling water that residual temperature is had after a heat release in the soil 13 of vegetation, and regulation plant root, which reaches, stablizes temperature
Spend the growth and development to promote plant.Since capillary is small in size, light weight and cost is low, heat exchange efficiency is high, so absorbing heat and putting
Hot systems all use capillary as heat exchanger.Whole system provides power by water pump.
This test is in heat-exchanging water tank 4 and heating water tank 11, and water temperature and water level are all by 6 intelligent control of controller, to realize
Automatic system for Building regulation and management, use manpower and material resources sparingly.
This test still uses capillary network as heat-releasing device in secondary thermal desorption system, due to planting the fertile soil of full vegetation
Earth heat transmission obtains to be lacked again slowly, and soil layer is deeper, and the soil moisture is influenced smaller by ambient temperature.Capillary herein is embedded in
Under vegetation and soil layer, therefore exothermic process is small with variation of ambient temperature influence, can be sufficiently exothermic, effectively maintains the steady of system
Determine circular flow.Position where this experimental evidence solar energy photovoltaic panel 1 selects the position of vegetation nearby, can be roof
Vegetation is also possible to the vegetation on ground.Cooling water after secondary heat release turns again to the first capillary by the second water pump 15
Net 2 cools down to solar energy photovoltaic panel 1, with secondary circulation.
The advantages of this test:
1) present embodiment is main energy source use in building with clean energy resource solar energy, and a part directly utilizes irradiation
Photovoltaic power generation is carried out in the sunlight of photovoltaic panel；The heat generated by direct sunlight photovoltaic plate is collected and utilized to another part,
Reduce building energy consumption；
2) present embodiment all uses the hair that small in size, light weight and cost is low, heat exchange efficiency is high with thermal desorption system in heat absorption
Tubule net significantly enhances heat-transfer effect as heat-exchanger rig, while as a heat transfer medium using the biggish water of specific heat, guarantees
The photoelectric conversion efficiency of solar energy；
3) cooling water heated in present embodiment by photovoltaic panel with domestic water after exchanging heat, and auxiliary vegetation,
To realize the Multi-class propagation of waste heat.
Through experimental study, the photovoltaic and photothermal solar integral system performance using capillary recycling waste heat of this test compared with
Excellent, after coolant flat area photovoltaic panel, the generating efficiency of photovoltaic panel improves 10% or more.
Compared with previous research achievement, this system reduces photovoltaic plate temperature, solves under direct sunlight, in height
The problem of solar energy photovoltaic panel decrease of power generation of warm environment；Primary and secondary thermal desorption system is set, solves photovoltaic panel week
Enclose the problem of waste heat waste heat is difficult to Collection utilization；Heat-exchanger rig using capillary network as heat absorption and thermal desorption system, alleviates
Previous system is usually associated with the increase of cost, heat exchange and the extremely limited problem of cooling effect when selecting heat-exchanger rig；If
Setting heating water tank 11 maintains hot water temperature constant, and capillary official website is arranged under certain thickness soil layer, alleviates systematicness
Can be affected by the external environment very big problem, greatly optimize system schema, and be experimentally confirmed with certain economy
And feasibility.
Claims (5)
1. a kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat, it is characterised in that returned using capillary
The photovoltaic and photothermal solar integral system for receiving waste heat is by solar energy photovoltaic panel (1), the first capillary network (2), the second capillary
Pipe network (3), heat-exchanging water tank (4), the first water level sensor (5), controller (6), the first water pump (8), electric heater (9), heating
Water tank (11), temperature, pressure safety valve (12), third capillary network (14), the second water pump (15), the second water level sensor (16)
It is formed with temperature sensor (17)；
First capillary network (2) is fixed on the outer wall of solar energy photovoltaic panel (1), the water outlet of the first capillary network (2)
It is connected to the water inlet of the second capillary network (3), the water outlet of the second capillary network (3) and the water inlet of third capillary network (14)
Mouth connection, the water outlet of third capillary network (14) are connected to the water inlet of the first capillary network (2), third capillary network (14)
Water outlet and the first capillary network (2) water inlet between pipeline on the second water pump (15) are set；
Second capillary network (3) is arranged in heat-exchanging water tank (4), and tap water inlet pipe (7) are arranged on heat-exchanging water tank (4), heat exchange
The first water level sensor (5) are set in water tank (4), the signal output end of the first water level sensor (5) and the signal of controller (6)
Input terminal connection, the water outlet of heat-exchanging water tank (4) are connected to the water inlet of heating water tank (11), the water outlet of heat-exchanging water tank (4)
It is arranged on pipeline between the water inlet of heating water tank (11) the first water pump (8), electric heater is set in heating water tank (11)
(9), temperature sensor (17) and the second water level sensor (16), and electric heater (9), temperature sensor (17) and the second water level
The signal output end of sensor (16) is connect with the signal input part of controller (6) respectively, and temperature is arranged on (11) in heating water tank
Pressure safety valve (12) and outlet pipe (10)；The third capillary network (14) is embedded in the soil (13) of vegetation.
2. a kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat according to claim 1,
The outer diameter for being characterized in that the supervisor of first capillary network (2) is 20mm, wall thickness 2mm；First capillary network
(2) outer diameter of capillary is 4.3mm, wall thickness 0.8mm.
3. a kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat according to claim 1,
The outer diameter for being characterized in that the supervisor of second capillary network (3) is 20mm, wall thickness 2mm；First capillary network
(2) outer diameter of capillary is 4.3mm, wall thickness 0.8mm.
4. a kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat according to claim 1,
The outer diameter for being characterized in that the supervisor of the third capillary network (14) is 20mm, wall thickness 2mm；First capillary network
(2) outer diameter of capillary is 4.3mm, wall thickness 0.8mm.
5. a kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat according to claim 1,
It is characterized in that valve is arranged on the pipeline between the water outlet of heat-exchanging water tank (4) and the water inlet of heating water tank (11).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149095A (en) * | 2019-06-18 | 2019-08-20 | 东北林业大学 | A kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat |
| CN113949341A (en) * | 2021-09-30 | 2022-01-18 | 青岛能安恒信科技有限公司 | Solar photo-thermal utilization system |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149095A (en) * | 2019-06-18 | 2019-08-20 | 东北林业大学 | A kind of photovoltaic and photothermal solar integral system using capillary recycling waste heat |
| CN113949341A (en) * | 2021-09-30 | 2022-01-18 | 青岛能安恒信科技有限公司 | Solar photo-thermal utilization system |
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