CN110887251A - Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device - Google Patents

Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device Download PDF

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Publication number
CN110887251A
CN110887251A CN201911312814.8A CN201911312814A CN110887251A CN 110887251 A CN110887251 A CN 110887251A CN 201911312814 A CN201911312814 A CN 201911312814A CN 110887251 A CN110887251 A CN 110887251A
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CN
China
Prior art keywords
photovoltaic
aluminum alloy
square tube
thermal
condenser
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911312814.8A
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Chinese (zh)
Inventor
黄晔
张高明
高峰
魏进家
王泽昕
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Shaanxi Yulin Energy Group Co Ltd
Xian Jiaotong University
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Shaanxi Yulin Energy Group Co Ltd
Xian Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi Yulin Energy Group Co Ltd, Xian Jiaotong University filed Critical Shaanxi Yulin Energy Group Co Ltd
Priority to CN201911312814.8A priority Critical patent/CN110887251A/en
Publication of CN110887251A publication Critical patent/CN110887251A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • 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
    • Y02E10/47—Mountings or tracking
    • 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
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Abstract

The invention discloses a seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device which comprises a compound parabolic condenser, a photovoltaic photo-thermal integrated assembly and a support, wherein the compound parabolic condenser is arranged on the photovoltaic photo-thermal integrated assembly, and the photovoltaic photo-thermal integrated assembly is arranged above the support. The photovoltaic and photothermal integrated assembly comprises a photovoltaic cell, a glass cover plate, an aluminum alloy square tube and an aluminum alloy frame, wherein the glass cover plate is arranged on the photovoltaic cell, the photovoltaic cell is arranged on the aluminum alloy square tube, and a plurality of channels are formed in the aluminum alloy square tube. The invention has compact structure and convenient installation. The photovoltaic and photo-thermal integrated assembly is arranged on the optimal light-gathering surface lower than the position of the light outlet hole of the condenser, so that the uniformity of light gathering is ensured. The inclination angle of support in a season keeps unchangeable, sets up according to local latitude at the inclination in different seasons, has simplified the operational mode, has reduced the running cost, has improved photovoltaic light and heat system's economic nature.

Description

Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device
Technical Field
The invention belongs to the field of solar concentrating photovoltaic photo-thermal, and relates to a seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device.
Background
In the field of solar concentrating photovoltaic photo-thermal, the use of the concentrator can multiply the thermoelectric output of the photovoltaic photo-thermal component. But is limited by the acceptance angle of the concentrator, either single-axis tracking or dual-axis tracking is typically employed in order to obtain more thermoelectric output. However, the introduction of the tracking device increases the initial investment cost of the concentrating photovoltaic photo-thermal system on one hand, and also makes the system more complex on the other hand, and the operation and maintenance cost is correspondingly increased. For medium and high power condensers, such as imaging condensers of a disc type and a groove type, the condensing light spot cannot be projected on the receiving surface as long as the incident light has slight deviation, so that the real-time tracking mode is required. And for a low-power condenser, such as a non-imaging condenser like a compound parabolic condenser, the tracking accuracy requirement is low due to a certain receiving half angle, and the economy is better compared with that of an imaging condenser. In the existing research, some compound parabolic concentrators adopt a double-shaft or single-shaft tracking mode, and some compound parabolic concentrators adopt a non-tracking mode. The former can realize the maximization of output performance, but the investment and operation costs are higher, and the investment recovery period is longer; the latter can achieve minimization of investment and operating costs, but the output performance is also low, making it difficult to meet user requirements.
Disclosure of Invention
In order to solve the problems of reducing the initial investment cost and the operation and maintenance cost, the invention aims to provide a seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device comprises a compound parabolic concentrator, a photovoltaic photo-thermal integrated assembly and a support, wherein the compound parabolic concentrator is arranged above the photovoltaic photo-thermal integrated assembly, and the compound parabolic concentrator and the photovoltaic photo-thermal integrated assembly are both arranged on the support; a vertical plane reflector is arranged between the light outlet of the compound parabolic condenser and the photovoltaic and photothermal integrated component; the lighting half angle of the compound parabolic condenser is 30 degrees.
The photovoltaic and photothermal integrated assembly is further improved in that the photovoltaic and photothermal integrated assembly comprises a photovoltaic cell, a glass cover plate, an aluminum alloy square tube and an aluminum alloy frame, wherein the glass cover plate is arranged on the photovoltaic cell, the photovoltaic cell is arranged on the aluminum alloy square tube, and a plurality of channels are formed in the aluminum alloy square tube.
The solar photovoltaic power generation device is further improved in that the glass cover plate and the photovoltaic cell and the aluminum alloy square tube are connected through bonding materials.
The invention is further improved in that an insulating protective material is arranged between the photovoltaic cell and the aluminum alloy square tube.
The solar photovoltaic cell is further improved in that the photovoltaic cell, the glass cover plate and the aluminum alloy square tube are packaged through an aluminum alloy frame, and the aluminum alloy frame is arranged on the lug plate.
The invention has the further improvement that a heat insulation material is filled between the aluminum alloy frame and the aluminum alloy square tube.
The invention has the further improvement that the bracket comprises a bracket main body framework, a condenser top clamping groove and a condenser bottom clamping groove, wherein the bracket main body framework comprises a bottom horizontal square tube; the bottom horizontal square tube is provided with a plurality of vertical square tubes symmetrically arranged, and the vertical square tubes are provided with condenser top clamping grooves and condenser bottom clamping grooves for fixing condensers.
The invention is further improved in that a diagonal square tube is arranged on the horizontal square tube at the bottom.
The invention has the further improvement that the condenser top clamping groove comprises a first L-shaped fixing piece and a first substrate, the first L-shaped fixing piece is arranged on the first substrate, the first substrate is arranged on the vertical square tube, and the angle of the first L-shaped fixing piece is matched with the top of the condenser;
the condenser bottom clamping groove comprises a second L-shaped fixing piece and a second substrate, the second L-shaped fixing piece is arranged on the second substrate, the second substrate is arranged on the vertical square tube, and the angle of the second L-shaped fixing piece is matched with the bottom of the condenser.
A further improvement of the invention is that the geometric concentration ratio of the compound parabolic concentrator is 2.
Compared with the prior art, the invention has the following beneficial effects:
in order to adapt to the seasonal tracking mode, the invention designs the corresponding condenser, the photovoltaic and photothermal integrated assembly and the integrated mounting bracket, and has compact structure and convenient mounting. On one hand, the inclination angle of the bracket is kept unchanged in one season, and the inclination angles in different seasons are set according to the local latitude, so that the operation mode is simplified, the total cost of the device is reduced by about 50% compared with that of a double-shaft tracking mode, and the economy of the photovoltaic photo-thermal system is improved; on the other hand, the light collector has a large lighting half angle, so that the light collector can receive most solar radiation energy when adopting an seasonal tracking mode, and the thermoelectric output performance of the system can reach about 75-80% of that of a double-shaft tracking mode. Therefore, the low-concentration photovoltaic photo-thermal cogeneration device provided by the invention can realize the balance between the thermoelectric output performance of the system and the investment and operation cost, and has certain advancement.
Furthermore, the top end and the bottom of the condenser are fixed in a clamping groove mode, mechanical stability of the condenser is guaranteed, the photovoltaic photo-thermal assembly is installed on the optimal light collecting surface lower than the position of a light outlet hole of the condenser, and uniformity of light collection is guaranteed.
Drawings
Fig. 1 is a perspective view of a low concentration photovoltaic photothermal cogeneration apparatus of the invention.
Fig. 2 is a cross-sectional view of the low concentration photovoltaic photo-thermal cogeneration apparatus of the invention.
Fig. 3 is a perspective view of the integrated photovoltaic and photothermal module of the present invention.
Fig. 4 is a cross-sectional view of the integrated photovoltaic and photothermal module of the present invention.
Fig. 5 is a perspective view of the stent of the present invention.
Fig. 6 is a cross-sectional view of a stent of the present invention.
Fig. 7 is a schematic view of a card slot structure of the present invention. Wherein, (a) is a clamping groove at the top of the condenser, and (b) is a clamping groove at the bottom of the condenser.
In the figure, 1 is a compound parabolic condenser, 2 is a photovoltaic and photo-thermal integrated component, 3 is a support main body framework, 4 is a condenser top clamping groove, 5 is a condenser bottom clamping groove, 6 is a vertical plane reflector, 7 is an L-shaped connecting piece, 8 is a small-size photovoltaic cell, 9 is a glass cover plate, 10 is an aluminum alloy square tube, 11 is an aluminum alloy frame, 12 is an ear plate, 13 is a first L-shaped fixing piece, 14 is a first base plate, 15 is a second L-shaped fixing piece, and 16 is a second base plate.
Detailed Description
The invention is further elucidated with reference to the drawing.
Referring to fig. 1-2, the photovoltaic-thermal integrated system comprises a compound parabolic concentrator 1, a photovoltaic-thermal integrated component 2 and a support, wherein the compound parabolic concentrator 1 is arranged above the photovoltaic-thermal integrated component 2, and the photovoltaic-thermal integrated component 2 is arranged on the support 3; a vertical plane reflector 6 is arranged between the light outlet of the compound parabolic condenser 1 and the photovoltaic and photothermal integrated component 2.
Referring to fig. 3 and 4, the photovoltaic and photothermal integrated assembly 2 comprises a photovoltaic cell 8, a glass cover plate 9, an aluminum alloy square tube 10 and an aluminum alloy frame 11, wherein the glass cover plate 9 is arranged on the photovoltaic cell 8, the photovoltaic cell 8 is arranged on the aluminum alloy square tube 10, specifically, the glass cover plate 9 and the photovoltaic cell 8 are connected through a bonding material, the photovoltaic cell 8 and the aluminum alloy square tube 10 are connected through a bonding material, and an insulating protection material is further arranged between the photovoltaic cell 8 and the aluminum alloy square tube 10. The aluminum alloy square tube 10 is provided with a plurality of channels for introducing fluid to cool the photovoltaic cell 8.
The photovoltaic cell 8, the glass cover plate 9 and the aluminum alloy square tube 10 are packaged through an aluminum alloy frame 11. And a heat insulation material is filled between the aluminum alloy frame 11 and the aluminum alloy square tube 10.
Referring to fig. 2, 5 and 6, the support includes a support main body framework 3, a condenser top clamping groove 4 and a condenser bottom clamping groove 5, and the support main body framework 3 includes a bottom horizontal square tube. The bottom horizontal square tube is provided with an oblique-pulling square tube for reinforcing the whole structure, the bottom horizontal square tube is provided with a plurality of vertical square tubes symmetrically arranged, and the vertical square tube is provided with a condenser top clamping groove 4 and a condenser bottom clamping groove 5 for fixing a condenser.
Referring to (a) and (b) of fig. 7, the optical concentrator top card slot 4 includes a first L-shaped fixing member 13 and a first substrate 14, the first L-shaped fixing member 13 is disposed on the first substrate 14, the first substrate 14 is disposed on a vertical square tube, and an angle of the first L-shaped fixing member 13 matches with a top of the optical concentrator.
The condenser bottom clamping groove 5 comprises a second L-shaped fixing piece 15 and a second substrate 16, the second L-shaped fixing piece 15 is arranged on the second substrate 16, the second substrate 16 is arranged on a vertical square tube, and the angle of the second L-shaped fixing piece 15 is matched with the bottom of the condenser.
The structure of each part of the invention is concretely as follows:
1) a compound parabolic concentrator 1. In order to meet the thermoelectric requirements of users in different seasons, the method is applied to seasonal tracking, according to a seasonal tracking mode, the geometric concentration ratio of the compound parabolic concentrator is designed to be 2, and according to a relational expression C of the geometric concentration ratio of the compound parabolic concentrator and a lighting half-angle, which is 1/sin theta, the lighting half-angle can reach 30 degrees and the receiving half-angle can reach 30 degrees, so that the concentrator can also receive solar radiation as much as possible in the seasonal tracking mode, and the thermoelectric requirements of the users can be met in different seasons.
2) Photovoltaic light and heat integration subassembly 2. The photovoltaic cell adopted by the photovoltaic and photothermal integrated component is a polycrystalline silicon solar cell, and the most common polycrystalline silicon solar cell on the market at present is 156mm by 156mm in size. Considering that the operation condition of the non-vertical incidence of sunlight is the most part under the seasonal tracking condition, in order to solve the problem of the increase of the ohmic loss and the reduction of the efficiency of the solar cell caused by the uneven energy flux density during the non-vertical incidence, the polycrystalline silicon solar cell with the conventional size of 156mm on the market is cut into half in the length direction and the width direction once respectively, and the photovoltaic cell 8 with the small size of 78mm which has the photoproduction current of 1/4 of the original conventional cell is obtained. The small-size photovoltaic cell 8 has small photoproduction current, and the caused ohmic loss can be almost ignored, so that the electric power loss is greatly reduced, and the photoelectric conversion efficiency is improved. Further, as shown in fig. 3 and 4, the small-sized photovoltaic cell 8, the glass cover plate 9, the aluminum alloy square tube 10, the EVA serving as the bonding material between the three, and the TPT serving as the insulation protection material between the photovoltaic cell 8 and the aluminum alloy square tube are manufactured into the small-sized photovoltaic and thermal integrated assembly 2 in a laminating manner, the laminated photovoltaic and thermal integrated assembly 2 is packaged by the aluminum alloy frame 11, and a heat insulation material is filled in a gap between the aluminum alloy frame and the aluminum alloy square tube.
The photovoltaic and photothermal integrated component 2 is arranged on the optimal light-gathering surface which is lower than the light outlet of the condenser and is fixed on the main framework of the bracket through the ear plates 12.
3) And (4) a bracket. As shown in fig. 1, the stent includes the following parts: the bracket comprises a bracket main body framework 3, a condenser top clamping groove 4 and a condenser bottom clamping groove 5. As shown in fig. 5 and 6, the main frame 3 includes a bottom horizontal square tube, a plurality of vertical square tubes symmetrically arranged left and right, and a diagonal square tube located in the middle to strengthen the overall structure. Wherein, the horizontal square pipe in bottom plays the supporting role, and vertical square pipe is used for fixed spotlight ware, has also divided into a plurality of passageway with the device simultaneously. It should be noted that fig. 5 and 6 show 4 channels, but the present invention is not limited thereto, and may also be 2, 6 or other even number of channels, which is determined according to the specific application. As shown in fig. 7, the optical collector top card slot 4 and the optical collector bottom card slot 5 respectively include two parts, i.e., an L-shaped fixing member 13 and a base plate 14, which are formed by welding. The top and the bottom of the miniaturized compound parabolic condenser 1 are fixed by the clamping grooves, and the base plate is fixed on the vertical square tube of the support main body framework 3 by the bolts, so that the mechanical stability of the miniaturized compound parabolic condenser can be ensured, the installation process is simplified, and the working efficiency is improved.
Firstly, a main framework 3 of the bracket is designed according to the installation height of the compound parabolic condenser and the photovoltaic and photothermal integrated assembly and the width of an incident plane of the condenser and is used as a carrier for supporting the whole device. And (3) designing a clamping groove structure matched with the paraboloids according to the curvatures of the top paraboloids and the bottom paraboloids of the condenser 1 for fixing the top and the bottom of the condenser.
4) A vertical plane mirror 6 for preventing light leakage. For a compound parabolic concentrator with 2 x concentration ratio, the distance between the optimal concentration surface and the light outlet of the concentrator is almost an order of magnitude as the size of the parabolic reflector, so it is very necessary to arrange a vertical plane reflector between the light outlet of the concentrator and the integrated pv-photothermal module 2 to prevent the loss of concentrated energy flow under various non-perpendicular incidence conditions. In order to reduce the manufacturing cost, the vertical plane reflector is manufactured by sticking a reflective film with the reflectivity of more than 92 percent on a metal plate. In addition, a notch is reserved at the mounting position of the clamping groove at the bottom of the condenser, so that mechanical interference is prevented. The vertical plane reflector 6 is fixed on a bottom clamping groove through an L-shaped connecting piece 7, and the clamping groove is fixed on a vertical square tube of the support main body framework through a substrate. The length of the vertical plane reflector 6 is the same as that of the condenser 1, and the height is the same as that of the optimal condensing surface of the condenser.
When the vertical plane reflector 6 is manufactured, the height of the optimal light-gathering surface of the compound parabolic condenser is calculated, and a metal plate with a corresponding width is cut according to the height, wherein the length of the metal plate is consistent with that of the condenser. Then a reflective film with the reflectivity of more than 92 percent is adhered on the metal plate, and finally the vertical plane reflector 6 is fixed on the substrate 14 of the clamping groove at the bottom of the condenser through an L-shaped connecting piece 7.
After each part is designed, the parts are installed according to the following flow: firstly, fixing a photovoltaic and photo-thermal integrated assembly 2 on a horizontal square tube of a support main body framework 3 through an ear plate 12, then installing a condenser bottom clamping groove 4 and a vertical plane reflector 6, and finally installing a condenser top clamping groove 5 to fix a compound parabolic condenser 1.
In the actual operation process, as the lighting half-angle of the condenser is larger, the mode of fixing an optimal inclination angle in each season can be adopted to ensure that the radiation quantity received by the photovoltaic and photothermal integrated assembly 2 in the season is the maximum, thereby achieving the balance between the operation cost and the thermoelectric output performance. In addition, because the solar altitude angle and the azimuth angle change in spring and autumn are symmetrical, only three adjustable inclination angles need to be set in the actual operation process.
The implementation steps show that the integrated mounting bracket of the condenser and the photovoltaic and photothermal integrated component 2 has the advantages of compact structure, space saving, strong mechanical stability, convenient mounting and high assembly efficiency. In addition, a seasonal tracking mode is adopted for the whole set of low-concentration photovoltaic photo-thermal cogeneration device, so that the balance between the thermoelectric output performance of the system and the investment and operation cost can be realized, the purpose of optimal economy is finally achieved, and the method has certain advancement.

Claims (10)

1. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device is characterized by comprising a compound parabolic condenser (1), a photovoltaic photo-thermal integrated assembly (2) and a support, wherein the compound parabolic condenser (1) is arranged above the photovoltaic photo-thermal integrated assembly (2), and the compound parabolic condenser (1) and the photovoltaic photo-thermal integrated assembly (2) are both arranged on the support (3); a vertical plane reflector (6) is arranged between the light outlet of the compound parabolic condenser (1) and the photovoltaic and photothermal integrated component (2); the lighting half angle of the compound parabolic condenser (1) is 30 degrees.
2. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device according to claim 1, wherein the photovoltaic photo-thermal integration assembly (2) comprises a photovoltaic cell (8), a glass cover plate (9), an aluminum alloy square tube (10) and an aluminum alloy frame (11), the glass cover plate (9) is arranged on the photovoltaic cell (8), the photovoltaic cell (8) is arranged on the aluminum alloy square tube (10), and a plurality of channels are formed in the aluminum alloy square tube (10).
3. The device for combined solar-thermal and heat-power cogeneration by seasonal tracking and low concentration light photovoltaic as claimed in claim 2, wherein the glass cover plate (9) and the photovoltaic cell (8) and the aluminum alloy square tube (10) are connected by bonding materials.
4. The device for the seasonal tracking of the low concentration photovoltaic photo-thermal cogeneration device according to claim 2, wherein an insulating protective material is arranged between the photovoltaic cell (8) and the aluminum alloy square tube (10).
5. The device for solar-thermal cogeneration with low concentration of light seasonally tracked according to claim 2, wherein the photovoltaic cell (8), the glass cover plate (9) and the aluminum alloy square tube (10) are encapsulated by an aluminum alloy frame (11), and the aluminum alloy frame (11) is arranged on the ear plate.
6. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device according to claim 5, wherein a thermal insulation material is filled between the aluminum alloy frame (11) and the aluminum alloy square tube (10).
7. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device according to claim 1, wherein the support comprises a support main body framework (3), a concentrator top clamping groove (4) and a concentrator bottom clamping groove (5), and the support main body framework (3) comprises a bottom horizontal square tube; the bottom horizontal square tube is provided with a plurality of symmetrical vertical square tubes, and the vertical square tubes are provided with condenser top clamping grooves (4) and condenser bottom clamping grooves (5) for fixing condensers.
8. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device according to claim 6, wherein a diagonal square tube is arranged on the bottom horizontal square tube.
9. The seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device according to claim 8, wherein the concentrator top clamping groove (4) comprises a first L-shaped fixing piece (13) and a first base plate (14), the first L-shaped fixing piece (13) is arranged on the first base plate (14), the first base plate (14) is arranged on a vertical square tube, and the angle of the first L-shaped fixing piece (13) is matched with the top of the concentrator;
condenser bottom draw-in groove (5) include second L shape mounting (15) and second base plate (16), and second L shape mounting (15) set up on second base plate (16), and second base plate (16) set up on vertical square pipe, the angle of second L shape mounting (15) and the bottom phase-match of condenser.
10. The device for the seasonal tracking of the low concentration photovoltaic combined heat and heat cogeneration according to claim 1, wherein the geometric concentration ratio of the compound parabolic concentrator (1) is 2.
CN201911312814.8A 2019-12-18 2019-12-18 Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device Pending CN110887251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911312814.8A CN110887251A (en) 2019-12-18 2019-12-18 Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911312814.8A CN110887251A (en) 2019-12-18 2019-12-18 Seasonal tracking low-concentration photovoltaic photo-thermal cogeneration device

Publications (1)

Publication Number Publication Date
CN110887251A true CN110887251A (en) 2020-03-17

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Country Status (1)

Country Link
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