CN201946616U - Photovoltaic-thermal (PVT) system based on photovoltaic battery - Google Patents
Photovoltaic-thermal (PVT) system based on photovoltaic battery Download PDFInfo
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- CN201946616U CN201946616U CN2010206853749U CN201020685374U CN201946616U CN 201946616 U CN201946616 U CN 201946616U CN 2010206853749 U CN2010206853749 U CN 2010206853749U CN 201020685374 U CN201020685374 U CN 201020685374U CN 201946616 U CN201946616 U CN 201946616U
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- heat
- heat exchanger
- system based
- photovoltaic cell
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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
The utility model relates to a photovoltaic-thermal (PVT) system based on a photovoltaic battery. In order to solve the technical problem, the utility model provides the PVT system based on the photovoltaic battery, wherein the PVT system has simple structure, low cost and stable heat gain and is convenient to manufacture. The technical scheme for solving the problem is as follows: the utility model is characterized in that the PVT system based on the photovoltaic battery comprises a first heat exchange loop, a second heat exchange loop and a heat exchanger for controlling the two loops to exchange heat, wherein the first heat exchange loop comprises a heat collector and a heat insulating liquid-storage tank which are connected in series to form a loop by pipelines; a heat exchange channel at one side of the heat exchanger is connected between the outlet end of the heat collector and the heat insulating liquid-storage tank in series; the second heat exchange loop comprises a compressor and a heat storage water tank which are connected in series to form a loop by pipelines; and a heat exchanging channel at the other side of the heat exchanger is connected between the inlet end of the compressor and the outlet end of the heat storage water tank in series. The PVT system is mainly used for utilizing solar to generate heat energy and electric energy.
Description
Technical field
The utility model relates to a kind of PVT system based on photovoltaic cell, is mainly used in to utilize sunlight to produce heat energy and electric energy.
Background technology
The rising of crystal silicon photovoltaic cell battery temperature in running can cause power output to reduce.For obtaining maximum solar radiations, always photovoltaic panel is placed optimum angle of incidence, if do not take cooling provision, the working temperature of photovoltaic cell can reach 60～80 ℃ usually, makes its generating efficiency sharply descend under higher ambient temperature.Therefore, if will farthest utilize photovoltaic cell, must utilize gas or liquid that photovoltaic panel is cooled off by free convection or forced convection, to weaken its temperature rise.If the heat of fluid removal is the utilization of certain form in addition, then can either increase the electric energy that photovoltaic cell produces, can obtain free heat energy again.Compare with simple photovoltaic or photo-thermal system, the PVT system takes up room little, can produce two kinds of energy gains, and whole efficiency is all higher than single photovoltaic or photo-thermal system.But existing P VT assembly mostly is customized encapsulation, and cost is higher, and can't be on existing photovoltaic system renovation and utilization, increased user's cost expenditure.
Summary of the invention
The technical problems to be solved in the utility model is: at the problem of above-mentioned existence provide a kind of simple in structure, easy to make, cost is low, the stable PVT system of heat based on photovoltaic cell.
The technical scheme that the utility model adopted is: the PVT system based on photovoltaic cell is characterized in that: it comprises first heat-exchanging loop, second heat-exchanging loop and controls above-mentioned two heat exchangers that heat exchange is carried out in the loop; Wherein first heat-exchanging loop comprises heat collector and the adiabatic fluid reservoir that is connected into a loop by pipeline, and described heat exchanger one side heat exchanger channels is serially connected with between the heat collector port of export and the adiabatic fluid reservoir; Second heat-exchanging loop comprises by pipeline and is connected into the compressor in a loop and the heat storage water tank of band heat exchange function successively that described heat exchanger opposite side heat exchanger channels then is serially connected with between the port of export of the entrance point of compressor and heat storage water tank.
Described heat collector comprises that employing heat conduction organosilicon binding agent is bonded in the plate tubular construction at the photovoltaic battery panel back side, this plate tubular construction opposite side is provided for the aluminum pressing plate of pressure strip tubular construction, this pressing plate opposite side keeps at a certain distance away and arranges encapsulation aluminium backboard, filling heat insulating wall in the space of described pressing plate both sides.
Described plate tubular construction comprises feed tube and the drain pipe that is parallel to each other, and head and the tail respectively with feed tube and drain pipe vertical connection and equally distributed being in charge of, wherein be positioned at the closed at both ends at diagonal angle on feed tube and the drain pipe, the layout that is parallel to each other between respectively being in charge of also adopts supersonic welding to be connected to aluminium sheet, this aluminium sheet opposite side and photovoltaic battery panel bonding.
Be serially connected with circulating pump between described heat collector entrance point and the adiabatic fluid reservoir.
Adopt threeway to connect expansion drum on the connecting tube between described circulating pump and the adiabatic fluid reservoir.
Be serially connected with choke valve between the port of export of described heat storage water tank and the heat exchanger channels of heat exchanger.
Described heat exchanger is a plate heat exchanger.
The beneficial effects of the utility model are: 1, the utility model utilize circulating fluid (being arranged in first heat-exchanging loop) cooling photovoltaic cell and by liquid with heat transferred evaporator (being plate heat exchanger), middle compared to existing technology direct-expansion type system adopts the cooler of solar cell and the heat exchanger that evaporator with heat pump unites two into one, the structure of its real system is more convenient, thereby reduced the processing and manufacturing difficulty, made things convenient for the realization of photovoltaic-photo-thermal building integration system; 2, adopt heat pump to shift the heat that heat collector produces, than the mode of direct heat transfer, it is more stable to get heat; 3, adopt the high heat conduction organosilicon bonding between heat collector and the photovoltaic cell, can utilize existing flat plate solar water heater band-tube type heat exchanger assembly, after carrying out a little repacking, directly being bonded in the photovoltaic cell back side can use, the structure of middle compared to prior art heat collector and the prefabricated encapsulation of photovoltaic cell, its cost is lower, and it is little to implement difficulty, and is convenient to promote; 4, snow-up terrain in the winter time, heat collector can also be driven by heat pump and oppositely heat, and can remove the ice and snow on the photovoltaic cell easily, does not need additionally to increase simultaneously any structure or takes up an area of the space.
Description of drawings
Fig. 1 is the utility model system construction drawing.
Fig. 2 is that the A-A of Fig. 1 is to cutaway view.
Fig. 3 is the structure chart of the utility model plate tubular construction.
Embodiment
As shown in Figure 1, present embodiment comprises first heat-exchanging loop, second heat-exchanging loop and controls the plate heat exchanger 6 that heat exchange is carried out in above-mentioned two loops; Wherein first heat-exchanging loop comprises heat collector 1, and its port of export is communicated with adiabatic fluid reservoir 3 by heat exchanger 6 one side heat exchanger channels, and this thermal insulation fluid reservoir other end then connects circulating pump 2 backs by pipeline and is communicated with the arrival end of heat collector 1; Second heat-exchanging loop comprises compressor 7, and its port of export is by the pipeline heat storage water tank 5 and the choke valve 4 of connecting band heat exchange function successively, and this choke valve other end is communicated with the entrance point of compressor 7 by heat exchanger 6 opposite side heat exchanger channels.The heat absorption that heat collector 1 produces photovoltaic cell also is transferred to ducted fluid, simultaneously under the compressor effect in second heat-exchanging loop, by heat exchanger 6 with the transfer of heat in the fluid to heat storage water tank 5.
As shown in Figure 2, described heat collector 1 comprises that employing heat conduction organosilicon binding agent is bonded in the plate tubular construction at photovoltaic battery panel 9 back sides, and not only simple in structure being easy to processed, and cost is low; This plate tubular construction opposite side is provided with aluminum pressing plate 1-1, and the plate tubular construction is applied certain pressure, guarantees that combination is tight between plate tubular construction and the photovoltaic cell backplane, and guarantees the thermal conduction resistance minimum; Described pressing plate 1-1 opposite side keeps at a certain distance away and arranges encapsulation aluminium backboard 1-2, and filling heat insulating wall 1-3 in the space of described pressing plate 1-1 both sides is with the influence of isolated ambient temperature fluctuation to system.
As shown in Figure 3, described plate tubular construction comprises feed tube 1-4 and the drain pipe 1-5 that is parallel to each other, and head and the tail respectively with feed tube 1-4 and drain pipe 1-5 vertical connection and the equally distributed 1-6 that is in charge of, wherein be positioned at the closed at both ends at diagonal angle on feed tube 1-4 and the drain pipe 1-5, respectively being in charge of is parallel to each other between the 1-6 arranges and adopts supersonic welder to be welded with aluminium sheet 1-7, and the aluminum fin 8 at this aluminium sheet opposite side and photovoltaic battery panel 9 back sides bonds.Ordinary circumstance, under the condition that the photovoltaic cell forward is placed, drain pipe 1-5 is positioned at the upper end, and feed tube 1-4 is positioned at the lower end, the centre be in charge of 1-6 adopt threeway with liquid inlet and outlet pipe 1-4,1-5 is vertical is connected, being in charge of 1-6 flow direction and liquid in-out pipe fluid is vertical relation.Heat collector 1 also can adopt several above-mentioned plate tubular constructions to be formed by connecting, and adopts the liquid in-out pipe that is threaded respectively, and with two pipe sealings (promptly two blind ends are positioned on the diagonal angle) of total inlet upper end and total liquid outlet lower end.The import of feed tube 1-4 connects circulating pump 2, adopt threeway to connect expansion drum 10 on the connecting tube between circulating pump 2 and the adiabatic fluid reservoir 3, it is more that the fluid temperature (F.T.) rising is worked as in assurance, when volume expands, expansion drum 10 absorbs unnecessary pressure, in order to avoid connection causes damage to pipeline.Under the pressure-driven of circulating pump 2, fluid in the plate tubular construction of heat collector 1 is approximate diagonal and flows, fluid buoyance lift upwards behind expanded by heating, simultaneously the cryogen that enters is produced certain negative pressure, these both pressure directions are identical with the pressure direction of circulating pump 2, to save the power consumption of circulating pump 2.
The operation principle of present embodiment is: when system moved, photovoltaic cell was subjected to illumination, and the part light radiation is converted to electric energy, remained a part of radiation and was converted to heat energy, and heat collector 1 is with the partial heat energy absorption and be transferred to ducted fluid; Fluid is driven by circulating pump 2, enters in the PVT end plate type heat exchanger 6 one side heat exchanger channels; Heat exchanger 6 opposite side heat exchanger channels link to each other with heat pump compressor 7, and compressor 7 compressing hot pump working medium become gases at high pressure, gases at high pressure enter the heat storage water tank 5 that comprises heat exchanger, condensation heat release within it, the heat release that heat collector 1 is absorbed and are stored to the water of attemperater.Working medium after the condensation heat release, pressure reduces, and through choke valve 4, returns the import that enters PVT end plate type heat exchanger 6 opposite side heat exchanger channels, and finish heat exchange in this heat exchanger, and transfer of heat to heat storage water tank 5, is circulated so repeatedly.
Present embodiment utilizes circulating fluid cooling photovoltaic cell and by the mode of liquid with the heat transferred evaporator, mode with respect to the direct evaporative cooling photovoltaic cell of heat pump fluid, introduced second heat transfer medium, though increased heat transfer temperature difference, but compare the direct-expansion type system and need adopt the cooler of solar cell and the heat exchanger that evaporator with heat pump unites two into one, the structure of its real system is more convenient, and the processing and manufacturing difficulty reduces, and is convenient to realize photovoltaic-photo-thermal building integration system.In addition, the introducing of second heat transfer medium also provides the leeway of flexible processing for satisfying heat demand and battery cooling requirement simultaneously, for example increases source, ground heat accumulation etc.Snow-up terrain in the winter time, heat collector 1 can also be driven by heat pump (heat storage water tank, heat exchanger and the compressor that comprise choke valve, band heat exchange function) and oppositely heat, remove the ice and snow on the photovoltaic cell easily, do not need additionally to increase simultaneously any structure or take up an area of the space.
Claims (7)
1. PVT system based on photovoltaic cell, it is characterized in that: it comprises first heat-exchanging loop, second heat-exchanging loop and controls the heat exchanger (6) that heat exchange is carried out in above-mentioned two loops; Wherein first heat-exchanging loop comprises heat collector (1) and the adiabatic fluid reservoir (3) that is connected into a loop by pipeline, and described heat exchanger (6) one side heat exchanger channels are serially connected with between heat collector (1) port of export and the adiabatic fluid reservoir (3); Second heat-exchanging loop comprises by pipeline and is connected into the compressor (7) in a loop and the heat storage water tank (5) of band heat exchange function successively that described heat exchanger (6) opposite side heat exchanger channels then is serially connected with between the port of export of the entrance point of compressor (7) and heat storage water tank (5).
2. the PVT system based on photovoltaic cell according to claim 1, it is characterized in that: described heat collector (1) comprises that employing heat conduction organosilicon binding agent is bonded in the plate tubular construction at the photovoltaic battery panel back side, this plate tubular construction opposite side is provided for the aluminum pressing plate (1-1) of pressure strip tubular construction, this pressing plate opposite side keeps at a certain distance away and arranges encapsulation aluminium backboard (1-2), filling heat insulating wall (1-3) in the space of described pressing plate (1-1) both sides.
3. the PVT system based on photovoltaic cell according to claim 2, it is characterized in that: described plate tubular construction comprises feed tube (1-4) and the drain pipe (1-5) that is parallel to each other, and head and the tail respectively with feed tube (1-4) and drain pipe (1-5) vertical connection and equally distributed being in charge of (1-6), wherein be positioned at the closed at both ends at diagonal angle on feed tube (1-4) and the drain pipe (1-5), respectively being in charge of is parallel to each other between (1-6) arranges and adopts supersonic welding to be connected to aluminium sheet (1-7), and this aluminium sheet opposite side bonds with photovoltaic battery panel.
4. the PVT system based on photovoltaic cell according to claim 1 is characterized in that: be serially connected with circulating pump (2) between described heat collector (1) entrance point and the adiabatic fluid reservoir (3).
5. the PVT system based on photovoltaic cell according to claim 4 is characterized in that: adopt threeway to connect expansion drum (10) on the connecting tube between described circulating pump (2) and the adiabatic fluid reservoir (3).
6. the PVT system based on photovoltaic cell according to claim 1 is characterized in that: be serially connected with choke valve (4) between the heat exchanger channels of the port of export of described heat storage water tank (5) and heat exchanger (6).
7. the PVT system based on photovoltaic cell according to claim 1 is characterized in that: described heat exchanger (6) is a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206853749U CN201946616U (en) | 2010-12-17 | 2010-12-17 | Photovoltaic-thermal (PVT) system based on photovoltaic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206853749U CN201946616U (en) | 2010-12-17 | 2010-12-17 | Photovoltaic-thermal (PVT) system based on photovoltaic battery |
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| Publication Number | Publication Date |
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| CN201946616U true CN201946616U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206853749U Expired - Lifetime CN201946616U (en) | 2010-12-17 | 2010-12-17 | Photovoltaic-thermal (PVT) system based on photovoltaic battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136514A (en) * | 2010-12-17 | 2011-07-27 | 浙江省能源与核技术应用研究院 | PVT (Production Verification Test) system based on photovoltaic cells |
| CN104917457A (en) * | 2015-05-10 | 2015-09-16 | 长兴祯阳低碳热水系统有限公司 | Dual circulation PVT system |
| WO2018148796A1 (en) * | 2017-02-15 | 2018-08-23 | Qingdao Austech Solar Technology Co. Ltd. | Apparatus and system for generating electricity with interfaced heat exchange |
| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
-
2010
- 2010-12-17 CN CN2010206853749U patent/CN201946616U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136514A (en) * | 2010-12-17 | 2011-07-27 | 浙江省能源与核技术应用研究院 | PVT (Production Verification Test) system based on photovoltaic cells |
| CN102136514B (en) * | 2010-12-17 | 2012-11-21 | 浙江省能源与核技术应用研究院 | PVT (Production Verification Test) system based on photovoltaic cells |
| CN104917457A (en) * | 2015-05-10 | 2015-09-16 | 长兴祯阳低碳热水系统有限公司 | Dual circulation PVT system |
| WO2018148796A1 (en) * | 2017-02-15 | 2018-08-23 | Qingdao Austech Solar Technology Co. Ltd. | Apparatus and system for generating electricity with interfaced heat exchange |
| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |