CN102231612A - Concentrating photovoltaic power generation unit, power generation device and a power generation system - Google Patents
Concentrating photovoltaic power generation unit, power generation device and a power generation system Download PDFInfo
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- CN102231612A CN102231612A CN2011101647373A CN201110164737A CN102231612A CN 102231612 A CN102231612 A CN 102231612A CN 2011101647373 A CN2011101647373 A CN 2011101647373A CN 201110164737 A CN201110164737 A CN 201110164737A CN 102231612 A CN102231612 A CN 102231612A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
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Abstract
The invention relates to a solar photovoltaic power generation technology, and discloses a concentrating photovoltaic power generation unit, a concentrating photovoltaic power generation device and a concentrating photovoltaic power generation system. The concentrating photovoltaic power generation unit comprises a water tank, a heat pipe, a concentrating receiver and a photovoltaic cell positioned below the concentrating receiver, wherein the heat end of the heat pipe is in contact with the back of the photovoltaic cell, and the cold end of the heat pipe is extended into the water tank. A plurality of concentrating photovoltaic power generation units arranged on a two-dimensional solar tracking device in form of array form the concentrating photovoltaic power generation device. A plurality of concentrating photovoltaic power generation devices are connected with a chimney type air heat exchange power generation system to form the concentrating photovoltaic power generation system. The concentrating photovoltaic power generation unit, the concentrating photovoltaic power generation device and the concentrating photovoltaic power generation system are high in concentrating ratio, tracking accuracy and wind resistance, effectively integrate solar photovoltaic power generation and heat exchange power generation, and can greatly increase the light utilization rate of a unit daylighting area and improve the power generation efficiency of the photovoltaic cell.
Description
Technical field
The present invention relates to solar photovoltaic technology, particularly a kind of concentrating photovoltaic power generation unit, Blast Furnace Top Gas Recovery Turbine Unit (TRT) and electricity generation system.
Background technology
The sun arrives the energy on ground each second up to 800,000 kilowatts, and the solar energy of earth surface 0.1% transfers electric energy to, and during number turnover 5%, annual energy output can reach 5.6 * 1012 kilowatt-hours, is equivalent to 40 times of present energy consumption in the world.Therefore, solar energy resources is abundant, and photovoltaic generation industry development prospect is very big.
At present, the flat panel silicon photovoltaic cell generating device is not followed the tracks of the sun, the technology maturity height, the reliability height, still, the light maximum of irradiation battery has only a light intensity, light utilization is low, the cost of electricity-generating height, and industry development need rely on the state revenue and expenditure subsidy to survive.In addition, the flat panel silicon photovoltaic cell capable of generating power is generally built in the wilderness, and land used is wide.
Concentrating photovoltaic power generation device unit are energy output is big, and still, when prior art optically focused ratio was 500 times of left and right sides, the flat photovoltaic generation of its cost of electricity-generating and silion cell did not relatively have clear superiority.At present, three joint GaAs batteries can bear the optically focused ratio about 2000 times, can significantly improve generating efficiency in theory, reduce cost of electricity-generating; But traditional water-cooling pattern is adopted in the battery heat radiation, and the water cooling equipment cost increases sharply, and the integrated cost advantage is little.
Summary of the invention
One object of the present invention is to provide a kind of concentrating photovoltaic power generation unit, can improve the optically focused ratio, lowers the cooling cost of battery, improves the generating efficiency of unit are.
Another object of the present invention is to provide a kind of concentrating photovoltaic power generation device, based on above-mentioned concentrating photovoltaic power generation unit, can solve tracking accuracy, stability problem and the battery heat dissipation problem of two-dimensional tracking under the high concentration ratio situation.
The 3rd purpose of the present invention is to provide a kind of light gathering photovoltaic power generating system, based on above-mentioned concentrating photovoltaic power generation device, can make full use of its heat energy and further generate electricity.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
(1) a kind of concentrating photovoltaic power generation unit is characterized in that, comprises water tank, heat pipe, optically focused receiver, is positioned at the photovoltaic cell of optically focused receiver below; The hot junction of described heat pipe contacts the back side of described photovoltaic cell, and cold junction stretches in the described water tank.
The optically focused receiver of this technical scheme can be for being provided with the light funnel of Fresnel Lenses.
Further being improved to of the optically focused receiver of this technical scheme, described optically focused receiver comprises concentrator, reflector, light constrictor, and reflector is arranged on described concentrator central upper portion, and the light constrictor is arranged on described concentrator bottom centre, collect light, shine described photovoltaic cell; It more advances one and is improved to, described concentrator inner surface is the parabola that opening makes progress, described reflector inner surface is the parabola that Open Side Down, above-mentioned two parabolic focus overlap, the top of described smooth constrictor is round taper hole, the bottom is a cylindrical hole, this round taper hole and cylindrical hole coaxial communication.
In the technique scheme, transmit the heat of photovoltaic cell body generation by heat pipe and taken away by water, realize the heat radiation of photovoltaic cell, its cooling effectiveness is apparently higher than traditional natural air cooled mode; Therefore, can significantly improve the generating efficiency of the light utilization and the photovoltaic cell of unit daylighting area by improving the optically focused ratio of optically focused receiver.
(2) a kind of concentrating photovoltaic power generation device is characterized in that, comprises solar two-dimension tracing apparatus, and is installed in a plurality of concentrating photovoltaic power generations unit on the solar two-dimension tracing apparatus with array way.
The characteristics of this technical scheme are: described solar two-dimension tracing apparatus comprises: the parallactic angle follower between east and west that rotates around axle perpendicular to the ground, around the height azimuth follower that rotates with the ground level axle;
Described parallactic angle follower between east and west, comprise base, be fixed on the vertical axis at base center, be enclosed within the axle sleeve on the vertical axis, be fixed on the wheel body of axle sleeve lower end, be fixed on the ring gear of wheel body circumference, with first driving gear of ring gear engagement, and first motor that drives first driving gear, described first motor is fixed on the base;
Described height azimuth follower, comprise the framework that is fixed on the axle sleeve upper end, the plane of framework is divided into a plurality of symmetric spaces by crossbeam and longeron, each space is equipped with a cell array frame by rotating shaft, rotating shaft is arranged on two middle side parts of cell array frame, on each cell array frame the concentrating photovoltaic power generation unit is set, the crossbeam of framework is provided with second motor, be fixed with second driving gear on the axle of second motor, the end of two neighbouring cell array framves on crossbeam both sides is fixed with sector respectively, this sector and the engagement of described second driving gear.
Technique scheme adopts solar two-dimension tracing apparatus, can improve the stability of two-dimensional tracking under the high concentration ratio situation; And solar two-dimension tracing apparatus adopts ring gear and sector, its tracking accuracy height; In addition, adopt the optically focused receiver that comprises concentrator, reflector, light constrictor in the concentrating photovoltaic power generation unit, because of the height of its height, low to the tracking accuracy requirement of solar two-dimension tracing apparatus less than the light funnel that is provided with Fresnel Lenses.Therefore, solar two-dimension tracing apparatus can satisfy two-dimensional tracking stability and the required precision under the high concentration ratio situation.
In the technique scheme, adopt the optically focused receiver that comprises concentrator, reflector, light constrictor in the concentrating photovoltaic power generation unit, solar two-dimension tracing apparatus adopts the cell array frame, can reduce windage.
(3) a kind of light gathering photovoltaic power generating system is characterized in that, comprises funnel-shaped air heat exchange electricity generation system and a plurality of concentrating photovoltaic power generation device,
Described funnel-shaped air heat exchange electricity generation system, comprise vertical chimney, be positioned at the air chamber of chimney bottom and be communicated with the hot chamber of thermal source, cold junction is positioned at the heat pipe heat that air chamber, hot junction are positioned at hot chamber, and the turbogenerator between air chamber outlet and chimney inlet; Described air chamber is provided with air intlet; Described air chamber and hot chamber are bell nested structure, and its interlayer is an air chamber, and inside is hot chamber, and bottom, hot chamber has hot-tub; The hot junction of described heat pipe heat is stretched in the hot-tub;
In the described concentrating photovoltaic power generation device, the water tank of its concentrating photovoltaic power generation unit is provided with entrance and exit, and tank entry is connected with water supply installation, and the water tank outlet is communicated with the hot-tub in the described funnel-shaped air heat exchange electricity generation system.
In the technique scheme, water supply installation can be water tower, cooling water pump or circulating water pump.Technique scheme has been carried out solar energy power generating and solar energy thermal-power-generating effectively comprehensively, can significantly improve the generating efficiency of the light utilization and the photovoltaic cell of unit daylighting area.
Description of drawings
Fig. 1 is the structural representation of a kind of concentrating photovoltaic power generation of the present invention unit;
Fig. 2 is the structural representation of another kind of concentrating photovoltaic power generation of the present invention unit;
Fig. 3 is the structural representation of a kind of concentrating photovoltaic power generation device of the present invention;
Fig. 4 is the schematic top plan view of height azimuth follower in the concentrating photovoltaic power generation device;
Fig. 5 is the structure principle chart of funnel-shaped air heat exchange electricity generation system;
Fig. 6 is the connection diagram of light gathering photovoltaic power generating system of the present invention.
Among the figure: 1, optically focused receiver; 101, concentrator; 102 supports; 103 reflectors, 104, light constrictor; 2, photovoltaic cell; 3, heat pipe; 4, water tank; 5, link; 6, cement pedestal; 7, ring gear; 8, first driving gear; 9, first motor; 10, framework; 11, cell array frame; 12, concentrating photovoltaic power generation unit; 13, second driving gear; 14, sector; 15, second motor; 16, rotating shaft; 17, axle sleeve, 18, vertical axis, 19, wheel body, 20, bearing, 21, base; 22, funnel-shaped air heat exchange electricity generation system; 2201 chimneys; 2202, air chamber; 2203, hot chamber; 2204, turbogenerator; 2205, radiator; 2206, air intlet; 2207, pipeline; 2208, hot-tub; 209, heat pipe heat; 23, concentrating photovoltaic power generation device.
Embodiment
With reference to Fig. 1, be a kind of concentrating photovoltaic power generation of the present invention unit, it mainly comprises water tank 4, heat pipe 3, optically focused receiver 1 and is positioned at the photovoltaic cell 2 of optically focused receiver 1 below.Wherein, optically focused receiver 1 is for being provided with the light funnel of Fresnel Lenses, and the light hopper outlet is provided with photovoltaic cell 2, and the side of light funnel is provided with water tank 4, and water tank 4 is connected with the light funnel body by link 5.The back side of the hot junction contact photovoltaic cell 2 of heat pipe 3, cold junction stretches in the water tank 4 and cools off, and the cold junction position is not less than the position, hot junction.
With reference to Fig. 2, be another kind of concentrating photovoltaic power generation of the present invention unit, what its structure was different with concentrating photovoltaic power generation unit shown in Figure 1 is optically focused receiver 1.This optically focused receiver 1 comprises concentrator 101, reflector 103, light constrictor 104, and reflector 103 is arranged on concentrator 101 central upper portion by support 102 or transparent glass, and light constrictor 104 is arranged on concentrator 101 bottom centre.Wherein, concentrator 101 inner surfaces are the parabola that opening makes progress, and reflector 103 inner surfaces are the parabola that Open Side Down, and above-mentioned two parabolic focus overlap; The top of light constrictor 104 is round taper hole, and the bottom is a cylindrical hole, this round taper hole and cylindrical hole coaxial communication; Light at first upwards reflexes to reflector 103 through concentrator 101, and reflector 103 reflexes to light constrictor 104 then downwards, and light constrictor 104 is collected light, irradiation photovoltaic cell 2.The side of concentrator 101 is provided with water tank 4, and water tank 4 is connected with concentrator 101 bodies by link 5.The back side of the hot junction contact photovoltaic cell 2 of heat pipe 3, cold junction stretches in the water tank 4 and cools off, and the cold junction position is not less than the position, hot junction.Said structure is compared the light funnel, and compact conformation has shortened the height of optically focused receiver, when cooperating with two tracking means of corresponding solar energy, requires low to the tracking accuracy of solar two-dimension tracing apparatus.In addition, on the support 102 transparent glass can be set, can prevent the intrusion of dust and rainwater, prolong the life-span of concentrating photovoltaic power generation unit.
With reference to Fig. 3, Fig. 4, a kind of concentrating photovoltaic power generation device of the present invention comprises solar two-dimension tracing apparatus, and is installed in concentrating photovoltaic power generation unit 12 on the solar two-dimension tracing apparatus with array way.
This solar two-dimension tracing apparatus comprises: the parallactic angle follower between east and west that rotates around axle perpendicular to the ground, and around the height azimuth follower that rotates with the ground level axle.Wherein, parallactic angle follower between east and west, comprise base 21, be fixed on the vertical axis 18 at base 21 centers, be enclosed within the axle sleeve 17 on the vertical axis 18, be fixed on the wheel body 19 of axle sleeve 17 lower ends, be fixed on the ring gear 7 of wheel body 19 circumference, with first driving gear 8 of ring gear 7 engagements, and first motor 9 that drives first driving gear 8, described first motor 9 is fixed on the base 21; Height azimuth follower, comprise the framework 10 that is fixed on axle sleeve 17 upper ends, the plane of framework 10 is divided into a plurality of symmetric spaces by crossbeam and longeron, each space is equipped with a cell array frame 11 by rotating shaft 16, rotating shaft 16 is arranged on two middle side parts of cell array frame 11, on each cell array frame 11 concentrating photovoltaic power generation unit 12 is set, the crossbeam of framework 10 is provided with second motor 15, be fixed with second driving gear 13 on the axle of second motor 15, the end of two neighbouring cell array framves 11 on crossbeam both sides is fixed with sector 14 respectively, this sector 14 and 13 engagements of described second driving gear.In the technique scheme, ring gear 7 and sector 14 can adopt the worm gear form, and first driving gear 8 and second driving gear 13 can adopt worm screw.(patent name is the principle of concrete solar two-dimension tracing apparatus: a kind of solar two-dimension tracing apparatus) identical with applicant's patent of invention ZL200810150017.X.
Wherein, the water tank in a plurality of concentrating photovoltaic power generation unit 12 can be installed on the cell array frame respectively; Perhaps a plurality of concentrating photovoltaic power generations unit 12 shared water tanks that are installed on the cell array frame.
With reference to Fig. 5, be funnel-shaped air heat exchange electricity generation system, comprising vertical chimney 2501, be positioned at the hot chamber 2503 of the air chamber 2502 and the connection thermal source of chimney 2501 bottoms, cold junction is positioned at the heat pipe heat 2509 that air chamber 2502, hot junction are positioned at hot chamber 2503, and the turbogenerator 2504 between air chamber 2502 outlets and chimney 2501 inlets; Air chamber 2502 is provided with air intlet 2506.Air chamber 2502 and hot chamber 2503 are bell nested structure, and its interlayer is an air chamber 2502, and inside is hot chamber 2503, and 2503 bottoms, hot chamber have hot-tub 2508, and the hot junction of heat pipe heat 2509 is stretched in the hot-tub 2508, and pipeline 2507 is used to feed hot water.(name of patent application is the principle of concrete funnel-shaped air heat exchange electricity generation system: a kind of funnel-shaped air heat exchange Blast Furnace Top Gas Recovery Turbine Unit (TRT)) identical with applicant's application for a patent for invention 201110111786.0.
With reference to Fig. 6, be light gathering photovoltaic power generating system of the present invention, wherein, funnel-shaped air heat exchange electricity generation system 25 can be connected with a plurality of concentrating photovoltaic power generation devices 26, the concrete connection is: in the concentrating photovoltaic power generation device 26, the water tank that is installed on the cell array frame is provided with entrance and exit, and tank entry is connected with water supply installation, and the water tank outlet is communicated with the hot-tub in the funnel-shaped air heat exchange electricity generation system 25.Water supply installation can be water tower, cooling water pump or circulating water pump, and water wherein can be recirculated water or external make-up water.
Technical scheme of the present invention has been carried out solar energy power generating and solar energy thermal-power-generating effectively comprehensively, can significantly improve the generating efficiency of unit daylighting area and unit photovoltaic cell area.Although below in conjunction with the accompanying drawings embodiment of the present invention are described, the present invention is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that claim of the present invention protects, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the present invention's protection.
Claims (7)
1. a concentrating photovoltaic power generation unit is characterized in that, comprises water tank, heat pipe, optically focused receiver, is positioned at the photovoltaic cell of optically focused receiver below; The hot junction of described heat pipe contacts the back side of described photovoltaic cell, and cold junction stretches in the described water tank.
2. concentrating photovoltaic power generation according to claim 1 unit is characterized in that, described optically focused receiver is the light funnel that is provided with Fresnel Lenses.
3. concentrating photovoltaic power generation according to claim 1 unit, it is characterized in that, described optically focused receiver comprises concentrator, reflector, light constrictor, reflector is arranged on described concentrator central upper portion, the light constrictor is arranged on described concentrator bottom centre, collect light, shine described photovoltaic cell.
4. concentrating photovoltaic power generation according to claim 3 unit, it is characterized in that, described concentrator inner surface is the parabola that opening makes progress, described reflector inner surface is the parabola that Open Side Down, above-mentioned two parabolic focus overlap, the top of described smooth constrictor is round taper hole, and the bottom is a cylindrical hole, this round taper hole and cylindrical hole coaxial communication.
5. a concentrating photovoltaic power generation device is characterized in that, comprises solar two-dimension tracing apparatus, and is installed in concentrating photovoltaic power generation a plurality of according to claim 1 unit on the solar two-dimension tracing apparatus with array way.
6. concentrating photovoltaic power generation device according to claim 5 is characterized in that, described solar two-dimension tracing apparatus comprises: the parallactic angle follower between east and west that rotates around axle perpendicular to the ground, around the height azimuth follower that rotates with the ground level axle;
Described parallactic angle follower between east and west, comprise base, be fixed on the vertical axis at base center, be enclosed within the axle sleeve on the vertical axis, be fixed on the wheel body of axle sleeve lower end, be fixed on the ring gear of wheel body circumference, with first driving gear of ring gear engagement, and first motor that drives first driving gear, described first motor is fixed on the base;
Described height azimuth follower, comprise the framework that is fixed on the axle sleeve upper end, the plane of framework is divided into a plurality of symmetric spaces by crossbeam and longeron, each space is equipped with a cell array frame by rotating shaft, rotating shaft is arranged on two middle side parts of cell array frame, on each cell array frame the concentrating photovoltaic power generation unit is set, the crossbeam of framework is provided with second motor, be fixed with second driving gear on the axle of second motor, the end of two neighbouring cell array framves on crossbeam both sides is fixed with sector respectively, this sector and the engagement of described second driving gear.
7. a light gathering photovoltaic power generating system is characterized in that, comprises funnel-shaped air heat exchange electricity generation system and a plurality of concentrating photovoltaic power generation device according to claim 5;
Described funnel-shaped air heat exchange electricity generation system, comprise vertical chimney, be positioned at the air chamber of chimney bottom and be communicated with the hot chamber of thermal source, cold junction is positioned at the heat pipe heat that air chamber, hot junction are positioned at hot chamber, and the turbogenerator between air chamber outlet and chimney inlet; Described air chamber is provided with air intlet; Described air chamber and hot chamber are bell nested structure, and its interlayer is an air chamber, and inside is hot chamber, and bottom, hot chamber has hot-tub; The hot junction of described heat pipe heat is stretched in the hot-tub;
In the described concentrating photovoltaic power generation device, the water tank of its concentrating photovoltaic power generation unit is provided with entrance and exit, and tank entry is connected with water supply installation, and the water tank outlet is communicated with the hot-tub in the described funnel-shaped air heat exchange electricity generation system.
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| CN2011101647373A CN102231612A (en) | 2011-06-17 | 2011-06-17 | Concentrating photovoltaic power generation unit, power generation device and a power generation system |
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| CN102522920A (en) * | 2011-12-21 | 2012-06-27 | 浙江尖山光电股份有限公司 | Photovoltaic and thermoelectric mixing power generation system |
| CN102607206A (en) * | 2012-03-30 | 2012-07-25 | 天津大学 | Solar photovoltaic photo-thermal composite heat pipe vacuum tube |
| CN104917453A (en) * | 2015-07-14 | 2015-09-16 | 上海新产业光电技术有限公司 | High concentrating photovoltaic power generation combined heat and power generation system and component structure thereof |
| CN106452341A (en) * | 2016-11-30 | 2017-02-22 | 戚明海 | Solar photovoltaic power generation system |
| CN107147353A (en) * | 2017-05-09 | 2017-09-08 | 南京驰鸿新能源科技有限公司 | A kind of concentrating photovoltaic photo-thermal solar energy composite utilizes system |
| CN107796132A (en) * | 2017-10-17 | 2018-03-13 | 郑州大学 | A kind of groove type solar cogeneration system |
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| CN107796132A (en) * | 2017-10-17 | 2018-03-13 | 郑州大学 | A kind of groove type solar cogeneration system |
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Application publication date: 20111102 |