CN102779868B - Solar power generation and collection system - Google Patents
Solar power generation and collection system Download PDFInfo
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- CN102779868B CN102779868B CN201210262957.4A CN201210262957A CN102779868B CN 102779868 B CN102779868 B CN 102779868B CN 201210262957 A CN201210262957 A CN 201210262957A CN 102779868 B CN102779868 B CN 102779868B
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- concentrator
- heat
- solar cell
- light receiver
- directional light
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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
- Y02E10/52—PV systems with concentrators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
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Abstract
The invention relates to a condenser which has the advantages of power generation and heat supply as well as higher photo-electricity/photo-thermal conversion efficiency. The solar power generation and collection system comprises a condenser and a parallel light receiver, wherein the condenser is used for paralleling and overlying light, and the parallel light receiver is arranged adjacent to a light-gathering zone of the condenser; the parallel light receiver comprises a solar cell and a solar collector tube which are arranged as a whole body in the back; when solar power is required, the solar cell of the parallel light receiver is opposite to a light-reflecting surface of the condenser; when a liquid heat source is required, the parallel light receiver is turned over, so that the solar collector tube is opposite to the light-reflecting surface of the condenser. Due to adoption of the condenser, the photo-electricity/photo-thermal conversion efficiency is higher, thus power supply or heat supply is elected as required. Due to adoption of the condenser, the photo-electricity/photo-thermal conversion efficiency is higher.
Description
The application is divisional application, the invention and created name " solar generating heat collecting system " of original application, application number: 201110085377.8, the applying date: on April 6th, 2011.
Technical field
The present invention relates to the technical field of solar energy light gathering and heat collecting and generating, specifically a kind of solar generating heat collecting system.
Background technology
Existing solar power generation or heating equipment often can only realize single function, namely at use adstante febre, do not have external power to supplement; When generating electricity, the waste heat of generation needs flower cost to dispel the heat.Solar cell does not have thermostatic control, and when sunny, ambient temperature is very high, solar cell Yin Wendu rises and causes decrease in power generation efficiency, and what have is even damaged.
How taking into account generating and heat supply, and make solar cell substantially keep constant temperature to guarantee its generating efficiency when generating electricity, is the technical problem that this area will solve.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of simple and reliable for structure, be suitable for selecting as required powering or heat supply and photoelectricity or the higher solar generating heat collecting system of photo-thermal conversion efficiency.
For solving the problems of the technologies described above, solar generating heat collecting system provided by the invention, comprising: the directional light receiver arranged for the concentrator of light ray parallel superposition and the optically focused band of this concentrator contiguous; Directional light receiver comprises: the solar cell be wholely set dorsad and solar energy heat collection pipe; When needs sun-generated electric power, the solar cell of directional light receiver is relative with the reflective surface of concentrator; When needs liquid thermal source, upset directional light receiver, to make described solar energy heat collection pipe relative with the reflective surface of concentrator.Owing to have employed concentrator, so photoelectricity or photo-thermal conversion efficiency higher.
Described solar cell is located on a heat-dissipating cavity, this heat-dissipating cavity is connected with the heat exchange liquid pipeline in solar energy heat collection pipe by the cooling liquid outlet of end or cooling fluid entrance, the heat energy produced during to make full use of solar cell power generation, and effect solar cell being played to cooling.
Described concentrator comprises: horizontal skeleton, a pair main framing be vertical on horizontal skeleton, the parabola skeleton being symmetrically set in horizontal skeleton both sides, the directional light receiver being located at main framing top, many level crossings parallel with described directional light receiver be located on parabola skeleton.
For improving the overall mechanical strength of concentrator, between the far-end of described parabola skeleton and the middle and upper part of described main framing, be provided with oblique pull reinforcement.Parabola reinforcement is provided with, to improve the bonding strength of parabola skeleton and main framing between the outside pars intermedia of described parabola skeleton and the middle and upper part of described main framing.
Level crossing described in 2-5 bar forms a level crossing group, has ventilative gap between adjacent level crossing group, can be ventilative very well, prevents strong wind on the impact of concentrator.Described solar cell is gallium arsenide solar cell module; Described heat-dissipating cavity is provided with condenser lens in the front of each gallium arsenide solar cell module; Described concentrator is located at one and is suitable on the tracking support of the motion tracking sun, and this tracking support comprises: column, the horizontal rotary mechanism being located at column top, the installing rack be located on horizontal rotary mechanism, be articulated with the electric pushrod for controlling the concentrator elevation angle between the front bottom end of concentrator and the middle and upper part of column; The bottom center of concentrator is articulated with on installing rack.
Further, the width of described level crossing is 45-75mm, to make the light focused on receiver be a rectangle, and then makes the temperature of receiver heating surface more even.The two ends of described level crossing are installed press strip by level crossing and are located on parabola skeleton, with clamping plane mirror, and convenient installation simultaneously.
Solar cell can adopt common monocrystalline silicon battery or adopt gallium arsenide solar cell module, and gallium arsenide solar cell mould is located on described heat-dissipating cavity by ceramic substrate.The condenser lens adopted is biconvex lens.
The technique effect that the present invention has: in (1) solar generating heat collecting system of the present invention, on the optically focused band of concentrator, solar cell and solar energy heat collection pipe are wholely set dorsad; When needs sun-generated electric power, the solar cell of directional light receiver is relative with the reflective surface of concentrator; When needs liquid thermal source, upset directional light receiver, to make described solar energy heat collection pipe relative with the reflective surface of concentrator.So it can select power supply or heat supply as required; Owing to have employed concentrator, its photoelectricity or photo-thermal conversion efficiency higher.(2) in concentrator, every bar glass-reflected light superposes, and makes the light being superimposed to receiver heating surface be a rectangle, and then makes the temperature of receiver heating surface more even, not easily produce the situation of local overheating, ensure that higher photoelectricity or photo-thermal conversion efficiency.(2) adopt level crossing as reflection, its production technology is simple, and low price, maintains easily and maintenance, and any glass store all can be processed.The fiber-loss of concentrator additive process, can compensate by increasing level crossing way.(4) loss of concentrator additive process, can increase level crossing to compensate a part in both sides.(5) parabola skeleton in concentrator adopts aluminium die casting or anti-purple modification PC or panel beating, all can produce by mould, unanimously good, is applicable to mass processing.(6) concentrator skeleton: form general frame by parabola skeleton, horizontal skeleton, main framing, directional light receiver, oblique pull reinforcement, parabola reinforcement etc., structural strength is good.(7) follow the tracks of support and adopt double-shaft tracking mechanism, horizontal rotary mechanism drive motors, electric pushrod motor adopt stepping motor, and adopt code-disc to detect, and ensure tracking accuracy.Electric pushrod can be placed on left side also can be placed on right side.Adopt double-axis tracking, all obtain the utilization of peak efficiency in horizontal angle and azimuth, exceed much than the efficiency of any one uniaxiality tracking mode, thus make this biaxial tracking trough-type bracket be suitable in real time accurately tracks sunlight.Adopt driving stepper motor, equipment is put into the minimum position of windage rapidly running into large wind energy.Ensure device security.When running into heavy snow, equipment can be erected, anti-heavy snow overstocks, damage equipment.Adopt driving stepper motor, be guaranteed in tracking accuracy.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below basis specific embodiment and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
The perspective view of the solar generating heat collecting system in Fig. 1 embodiment;
Fig. 2 is the side structure schematic diagram of the described solar generating heat collecting system in Fig. 1;
Fig. 3 is the perspective view of the concentrator in Fig. 1;
Fig. 4 is the vertical view of described concentrator;
Fig. 5 is the side structure schematic diagram of described concentrator;
Fig. 6 is the another side structural representation of described concentrator;
Fig. 7 is the structural representation of the heat-dissipating cavity at gallium arsenide solar cell module place;
Fig. 8 is the A-A cross section view of Fig. 7;
Fig. 9 is another perspective view of described solar generating heat collecting system;
Figure 10 is the another side structural representation of described solar generating heat collecting system;
Figure 11 is the partial enlargement structural representation of described heat-dissipating cavity;
Figure 12 is when temperature is lower than 0 DEG C, and the fin openings in described heat-dissipating cavity upward to store the structural representation of a small amount of conductive fluid between fin and the base plate of heat-dissipating cavity.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
As Fig. 1-10, the solar generating heat collecting system of the present embodiment comprises: the directional light receiver 4 arranged for the concentrator a of light ray parallel superposition and the optically focused band of contiguous this concentrator a; Directional light receiver 4 comprises: the solar cell 4-1 be wholely set dorsad and solar energy heat collection pipe 4-2; When needs sun-generated electric power, by relative with the reflective surface of concentrator a for the solar cell 4-1 of directional light receiver 4; When needs liquid thermal source, upset directional light receiver 4, to make described solar energy heat collection pipe 4-2 relative with the reflective surface of concentrator a.In other execution modes, directional light receiver 4 can adopt single solar cell or solar energy heat collection pipe.
Described solar cell 4-1 is located on a heat-dissipating cavity 11, and this heat-dissipating cavity 11 is connected with the heat exchange liquid pipeline in solar energy heat collection pipe 4-2 by the cooling liquid outlet 13 of end.As Fig. 1, during generating, water passes through cooling fluid entrance 16(and the A point of heat-dissipating cavity 11) enter, cooling liquid outlet 13(and the A ' point of heat-dissipating cavity 11) be connected with one end (i.e. B ' interface) of the heat exchange liquid pipeline in solar energy heat collection pipe 4-2, flow through B ' the B section of heat exchange liquid pipeline, water temperature obtains entering lifting, then is flowed out by the another port (i.e. B point) of heat exchange liquid pipeline, gets back in water tank.Thus when solar cell working, heat exchange liquid plays all the time to the effect of solar cell cooling, so substantially keep constant temperature when generating electricity, and then ensure that generating efficiency and useful life, preventing overheated situation.Heat exchange liquid is water or conduction oil.
As the execution mode optimized, between multiple concentrator a, the heat exchange liquid pipeline in solar energy heat collection pipe 4-2 wherein is also connected successively; And heat exchange liquid preferred water, the cold water source pipeline be connected with described heat exchange liquid pipeline is provided with temperature-sensing valve, for controlling water temperature by controlling flow.
Described solar cell 4-1 is gallium arsenide solar cell module; Described heat-dissipating cavity 11 is provided with condenser lens 12 in the front of each gallium arsenide solar cell module, to play further optically focused effect, to improve photoelectric conversion efficiency further.
For realizing sunshine tracking function, described concentrator a is located at one and is suitable on the tracking support of the motion tracking sun, and this tracking support comprises: column 21, the horizontal rotary mechanism 22 being located at column 21 top, the installing rack 23 be located on horizontal rotary mechanism 22, the electric pushrod 25 for controlling the concentrator a elevation angle between the front bottom end being articulated with concentrator a and the middle and upper part of column 1; The bottom center of concentrator a is articulated with on installing rack 23.
Drive motors 51 in described electric pushrod 25 and the motor and in described horizontal rotary mechanism 22 are suitable for detecting position of sun and are connected with the control circuit controlling concentrator a real-time tracking sunlight.
The push rod 25-1 top of described electric pushrod 25 and the front bottom end of concentrator a hinged, the guide pin bushing 25-2 middle and upper part in described electric pushrod 25 and the middle and upper part of column 1 are hinged by anchor ear 26.
Drive motors 51 in described electric pushrod 25 is provided with the anglec of rotation of the rotating shaft for detecting this drive motors 51 to detect the code-disc 27 at the concentrator a elevation angle.
Concentrator a comprises: horizontal skeleton 1, the main framing 2 be located on horizontal skeleton 1, the parabola skeleton 3 being symmetrically set in horizontal skeleton 1 both sides, the directional light receiver 4 being located at main framing 2 top, many level crossings 5 parallel with described directional light receiver 4 be located on parabola skeleton 3.The two ends of described level crossing 5 are installed press strip 8 by level crossing and are located on parabola skeleton 3.
Parabola skeleton 3 adopts aluminium die casting or anti-purple modification PC or panel beating, all can produce by mould, unanimously good, is applicable to mass processing.
Oblique pull reinforcement 6 is provided with between the far-end of described parabola skeleton 3 and the middle and upper part of described main framing 2.Parabola reinforcement 7 is provided with between the outside pars intermedia of described parabola skeleton 3 and the middle and upper part of described main framing 2.
Article 4, level crossing 5 forms a level crossing group, has ventilative gap between adjacent level crossing group.
The width of described level crossing 5 is 45-75mm.This level crossing is as reflection, and its production technology is simple, and low price, maintains easily and maintenance, and any glass store all can be processed.
As Figure 11-12, the lower surface of the base plate 14 of described heat-dissipating cavity 11 is used for arranging solar cell 4-1, be provided with the fin 15 that multiple parallel spaced-apart is located at the upper surface of described base plate 14 in heat-dissipating cavity 11, each fin 15 is acute angle with the angle of described base plate 14; The top board 17 of the contiguous heat-dissipating cavity 11 of cooling fluid entrance 16 of heat-dissipating cavity 11 is arranged, and the contiguous described base plate 14 of described cooling liquid outlet 13 is arranged.Due to when described solar cell 4-1 normally works, the temperature at described base plate 14 place is often higher, so make heat exchange liquid send into from the top board 17 cooling fluid entrance 16 just of contiguous heat-dissipating cavity 11, and send from the cooling liquid outlet 13 of contiguous described base plate 14, the contact-making surface of heat exchange liquid and fin can be made to be flowed to higher temperatures place by comparatively low temperature, to realize even, fully heat exchange, ensure that heat transfer effect.
The perpendicular projection of adjacent fin 15 on described base plate 14 overlaps, to make that there is conductive fluid described base plate 14 upper surface all the time, thus can radiating effect be guaranteed, the instantaneous high-temperature produced when preventing described solar cell 4-1 from normally working is to the infringement of solar cell 4-1.Between the top board of described fin and heat dissipation metal cavity, there is gap, to make the cold and hot abundant convection current of cooling fluid and to make it be heated evenly.
When utilizing water to cool, its ambient temperature is lower than time subzero, described heat-dissipating cavity 11 can be rotated and the opening direction of fin 15 is upwards arranged, automatically closing water inlet place, and make delivery port pump work very short time, to extract a part of water in heat-dissipating cavity 11 out, reserve enough spaces, even if water may freeze, volumetric expansion, also can not by heat-dissipating cavity 11 bursting by freezing, a small amount of heat exchange liquid that heat-dissipating cavity 11 exists simultaneously also can prevent heat-dissipating cavity 11 temperature too high.
When normal power generation, by temperature detection, implement to control the water velocity in heat-dissipating cavity 11, to dispel the heat rapidly.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. a solar generating heat collecting system, is characterized in that comprising: the directional light receiver (4) arranged for the concentrator (a) of light ray parallel superposition and the optically focused band of this concentrator (a) contiguous;
Directional light receiver (4) comprising: the solar cell (4-1) be wholely set dorsad and solar energy heat collection pipe (4-2);
When needs sun-generated electric power, by relative with the reflective surface of concentrator (a) for the solar cell (4-1) of directional light receiver (4);
When needs liquid thermal source, upset directional light receiver (4), to make described solar energy heat collection pipe (4-2) relative with the reflective surface of concentrator (a);
Described solar cell (4-1) is located on a heat-dissipating cavity (11), and this heat-dissipating cavity (11) is connected with the heat exchange liquid pipeline in solar energy heat collection pipe (4-2) by the cooling liquid outlet (13) of end or cooling fluid entrance (16);
Described concentrator (a) comprising: horizontal skeleton (1), a pair main framing (2) be vertical on horizontal skeleton (1), the parabola skeleton (3) being symmetrically set in horizontal skeleton (1) both sides, many level crossings (5) parallel with described directional light receiver (4) be located on parabola skeleton (3); The top of described main framing (2) is located at by directional light receiver (4), and one end of directional light receiver (4) is located at by motor-driven rotating self-locking mechanism (4-3); Described in 2-5 bar, level crossing (5) forms a level crossing group, has ventilative gap between adjacent level crossing group;
Described solar cell (4-1) is gallium arsenide solar cell module; Described heat-dissipating cavity (11) is provided with condenser lens (12) in the front of each gallium arsenide solar cell module; Described concentrator (a) is located at one and is suitable on the tracking support of the motion tracking sun, and this tracking support comprises: column (21), be located at column (21) top horizontal rotary mechanism (22), be located at the installing rack (23) on horizontal rotary mechanism (22), the electric pushrod (25) for controlling concentrator (a) elevation angle between the front bottom end being articulated with concentrator (a) and the middle and upper part of column (1); The bottom center of concentrator (a) is articulated with on installing rack (23);
The lower surface of the base plate (14) of described heat-dissipating cavity (11) is used for arranging solar cell (4-1), be provided with the fin (15) that multiple parallel spaced-apart is located at the upper surface of described base plate (14) in heat-dissipating cavity (11), each fin (15) is acute angle with the angle of described base plate (14); The top board (17) of the contiguous heat-dissipating cavity (11) of cooling fluid entrance (16) of heat-dissipating cavity (11) is arranged, and the contiguous described base plate (14) of described cooling liquid outlet (13) is arranged;
The perpendicular projection of adjacent fin (15) on described base plate (14) overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262957.4A CN102779868B (en) | 2011-04-06 | 2011-04-06 | Solar power generation and collection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262957.4A CN102779868B (en) | 2011-04-06 | 2011-04-06 | Solar power generation and collection system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110085377A Division CN102182656B (en) | 2011-04-06 | 2011-04-06 | Solar electric power generating heat collecting system |
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| CN102779868A CN102779868A (en) | 2012-11-14 |
| CN102779868B true CN102779868B (en) | 2014-12-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348412A (en) * | 2013-08-05 | 2015-02-11 | 上海久能能源科技发展有限公司 | Double-function solar power generating device |
| CN108458499A (en) * | 2018-02-06 | 2018-08-28 | 中国科学院电工研究所 | A kind of solar energy high temperature air heat-collecting system and method |
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| CN101710803A (en) * | 2009-11-03 | 2010-05-19 | 上海聚恒太阳能有限公司 | Solar concentrating generation device capable of realizing surplus heat utilization |
| CN201557063U (en) * | 2009-12-01 | 2010-08-18 | 何斌 | Light-focusing solar energy device adopting parabolic mirror |
| CN101976972A (en) * | 2010-10-09 | 2011-02-16 | 张国柱 | Controllable double-state reflection/condensation solar energy collection power generation device |
| CN201781437U (en) * | 2010-07-30 | 2011-03-30 | 鞍山恒信科技开发有限公司 | Heat energy utilizing system for gallium arsenide spotlight solar power station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100186820A1 (en) * | 2008-11-10 | 2010-07-29 | Schon Steven G | Solar electricity generation with improved efficiency |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710803A (en) * | 2009-11-03 | 2010-05-19 | 上海聚恒太阳能有限公司 | Solar concentrating generation device capable of realizing surplus heat utilization |
| CN201557063U (en) * | 2009-12-01 | 2010-08-18 | 何斌 | Light-focusing solar energy device adopting parabolic mirror |
| CN201781437U (en) * | 2010-07-30 | 2011-03-30 | 鞍山恒信科技开发有限公司 | Heat energy utilizing system for gallium arsenide spotlight solar power station |
| CN101976972A (en) * | 2010-10-09 | 2011-02-16 | 张国柱 | Controllable double-state reflection/condensation solar energy collection power generation device |
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Effective date of registration: 20141210 Address after: 310000 room 4, building 20, No. 149 Longtan Road, Hangzhou District, Yuhang, Zhejiang Applicant after: CHANGZHOU FOCUS ON NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 213000 No. 8, West Lake Road, hi tech Industrial Development Zone, Wujin District, Jiangsu, Changzhou Applicant before: Changzhou Focus on New Energy Technology Co., Ltd. |