CN101098115A - Tracing collection thermoelectric comprehensive utilization system - Google Patents

Tracing collection thermoelectric comprehensive utilization system Download PDF

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Publication number
CN101098115A
CN101098115A CNA2007100243395A CN200710024339A CN101098115A CN 101098115 A CN101098115 A CN 101098115A CN A2007100243395 A CNA2007100243395 A CN A2007100243395A CN 200710024339 A CN200710024339 A CN 200710024339A CN 101098115 A CN101098115 A CN 101098115A
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CN
China
Prior art keywords
solar
photo
utilization system
photoelectric conversion
tracing collection
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Pending
Application number
CNA2007100243395A
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Chinese (zh)
Inventor
张耀明
孙利国
张振远
许志龙
陈强
刘晓晖
王军
王文斌
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Naning Zhongcai Tiancheng New Energy Co Ltd
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Naning Zhongcai Tiancheng New Energy Co Ltd
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Priority to CNA2007100243395A priority Critical patent/CN101098115A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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Abstract

The invention relates to a track condense thermoelectric utilizing system, belonging to solar-energy utilization technical field, which comprises an automatic sun tracker, a photoelectric converter mounted on the tracker, and a fluid cooler mounted on the back of a solar-energy battery group of the photoelectric converter, and a photo thermal converter mounted on the tracker. The photo thermal converter is mainly composed of a condenser and a heat collector near the focal line of the condenser. The fluid outlet of the cooler is connected with a working medium inlet of the heat collector via a connecting tube. Compared with prior art, the invention can make the solar-energy battery hold lower working temperature after light condensation, and collect the waste 80% heat energy of solar-energy battery, which can effectively resolve the problems after condensation, as high heat radiation cost and complex system, and improve the property/value ration of the whole system, to support batch application.

Description

The tracing collection thermoelectric utilization system
Technical field
The present invention relates to a kind of tracing collection thermoelectric utilization system, belong to technical field of solar utilization technique.
Background technology
Solar energy is a kind of regenerative resource of cleanliness without any pollution, and is inexhaustible; fully development and use solar energy not only can be saved exhausted day by day conventional energy resource; alleviate severe shortage of resources problem, but also can reduce pollution, the human biological environment of depending on for existence of protection.The development and use of the regenerative resource of taking as the leading factor with solar energy will become the most potential field of running neck and neck with biology, information, material in 21st century.Development and use solar energy has become a big theme of international affairs and the grand strategy decision-making of countries in the world sustainable development.
In numerous solar utilization techniques, solar photovoltaic technology can be an electric energy with conversion of solar energy directly, it is a kind of mode of utilizing of most convenient, it have safe and reliable to operation, need not fuel, noiseless, pollution-free, can utilize on the spot, need not to set up advantages such as power transmission and transforming equipment, working service is easy, scale is changeable, thereby be subjected to the attention of countries in the world.To the middle of this century, photovoltaic generation will partly replace conventional energy resource, so photovoltaic generation still all is significant aspect energy strategy aspect environmental protection.World's photovoltaic module average annual growth rate in the period of 15 in the past surpasses 15%.In recent years, average annual growth rate surpassed 30%.Estimate to develop with 20%-30% even higher increasing velocity before the year two thousand twenty.Though the photovoltaic power generation technology comparative maturity has obtained fairly large utilization at present, because the shortage of raw materials of solar cell, system cost is higher, so greatly limited the development of solar energy power generating.
The concentrating photovoltaic power generation technology is the effective way of large-scale photovoltaic power station cost in significantly reducing.The applicant is open relevant achievement to this technical research in the patent of application before this: batterfly shape reflective light gathering photovoltaic power generating system (application number is 200610038821.x); Many times of light gathering photovoltaic power generating systems (application number is 200620125056.0); From the photovoltaic generating system (application number is 02218387.6) of the motion tracking sun, wherein write up automatic sun tracking mechanism, be installed in photoelectric conversion part on the automatic sun tracking mechanism related art scheme of grading.
But since in the concentrating photovoltaic power generation technology that people adopt the optoelectronic transformation efficiency of commercialization solar cell generally less than 20%, the energy of residue more than 80% all lost with the form of heat energy, and the heat energy that produces makes the decreased performance of concentrating solar battery, further reduce solar energy utilization rate, limited the further popularization of Application of Solar Energy greatly.The applicant is through discovering, if can realize thermoelectric comprehensive utilization, then not only can be with the heat energy utilization that loses, and can reduce the solar cell temperature, improve the power output of solar cell, improve the utilization ratio of solar energy, will effectively advance the development of solar utilization technique.
Summary of the invention
The objective of the invention is: at the shortcoming of above prior art existence, propose a kind of can be on the opto-electronic conversion basis further with thermal energy collecting so that the tracing collection thermoelectric utilization system that utilizes, thereby overcome solar energy utilization ratio in the existing light gathering photovoltaic power generating system less than 20% drawback, improve the solar energy composite utilization ratio.
To achieve these goals, technical scheme of the present invention is: a kind of tracing collection thermoelectric utilization system, comprise automatic sun tracking mechanism, be installed in the photoelectric conversion section on the automatic sun tracking mechanism, fluid cooling device is equipped with at the solar module back of described photoelectric conversion section, in addition, also comprise the photo-thermal conversion portion that is installed on the automatic sun tracking mechanism, described photo-thermal conversion portion is mainly by concentrator, be positioned near the heat collection device of concentrator focal line and constitute, the fluid issuing of described cooling device connects the working media import of heat collection device by connecting line.
Like this, the photoelectric conversion section cooling device is in the cools solar cell assembly, played preliminary heat effect to fluid in the cooling device, thereby both guaranteed the operate as normal of solar module, improved the initial temperature of heat collection device working media again, made full use of the heat energy in the photoelectric conversion process, killed two birds with one stone.Simultaneously, photoelectric conversion section and photo-thermal conversion portion can make system of the present invention more economical by the automatic sun tracking mechanism control of a cover.
Further improvement of the present invention is, the cooling-part that is installed in the solar module back adopts identical working media with heat collection device, and its flow area is identical with heat collection device.Like this, can make between two branches more coupling.During work, cooling by the lower working media of temperature, make the solar cell under the several times optically focused condition still can remain under the lower working temperature, effectively reduce the loss of the solar cell power output that causes because of temperature rise, improved the useful life of solar cell, made the useless heat of photoelectric conversion process script obtain reasonable utilization simultaneously.
The present invention further improves again, the concentrator of photoelectric conversion section adopts plane mirror or the bigger cambered surface speculum of radius of a circle, pass through reasonable structural design, make the light of every row mirror reflects all shine on the solar module of a corresponding side equably, the width of irradiation light is slightly wideer than the width of this solar module, so not only can realize light-focusing function, and have simple, the cheap remarkable advantage of manufacturing.And the photo-thermal conversion portion adopts the grooved parabolic reflector, sunray is converged to efficiently be positioned near the heat collection device of parabolic reflector focal line, working media on the heat collection device is heated up, to reach the temperature requirement of working media next stage utilization rapidly.
In a word, compare with the prior art scheme, the present invention is with the structural design of advantages of simple, solar cell still can keep lower working temperature after having guaranteed several times optically focused, utilize the heat energy of the unavailable residue of solar cell more than 80% by collection again, not only efficiently solve the problem of heat radiation cost height, system complex behind the optically focused, and improved the ratio of performance to price of a whole set of tracing collection thermoelectric utilization system, help carrying out large-scale application.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is a photoelectric conversion section end view among the embodiment one.
Fig. 3 is that solar module combines schematic diagram with cooling-part among the embodiment one.
Fig. 4 is a photo-thermal conversion portion end view among the embodiment one.
Fig. 5 is the structural representation of embodiment two.
Fig. 6 is the structural representation of embodiment three.
Fig. 7 is the end view of embodiment three.
Embodiment
Embodiment one
The tracing collection thermoelectric utilization system of present embodiment comprises the photoelectric conversion section, photo-thermal conversion portion, tube connector 8 and the automatic sun tracking mechanism that are installed on the automatic sun tracking mechanism as shown in Figure 1.Photoelectric conversion section is made up of solar module 1, cooling-part 2, photoelectricity fixed support 3, level crossing combined concentrators 4.Wherein photo-thermal conversion portion (referring to Fig. 4) is made up of heat collection device 5, photo-thermal fixed support 6, parabolic condenser 7; Automatically sun tracking mechanism is by azimuth follower 9, azimuth bracing frame 10, elevation angle follower 11, elevation angle bracing frame 12 is formed, wherein level crossing combined concentrators 4 reflectings surface up, be fixedly mounted on the photoelectricity fixed support 3, solar module 1 is divided into two groups, be " V " font symmetry and be installed in photoelectricity fixed support 3 center line both sides, and towards 4 placements of level crossing combined concentrators, level crossing combined concentrators 4 is made up of the multiple row speculum, the irradiate light of every row mirror reflects is to the solar module 1 of a corresponding side, and irradiating width is than irradiated solar module 1 width slightly wide (referring to Fig. 2).In the present embodiment, heat collection device 5 adopts high-temperature vacuum heat-collecting tube, also can increase regenerative apparatus in addition.
As shown in Figure 3, the cooling-part 2 that is positioned at solar module 1 back carries out lamination with solar module 1, is provided with in the cooling-part 2 to make working media 13 mobile uniform channel designs, and it is suitable with the vacuum heat collection pipe 5 of photo-thermal conversion portion to stimulate the menstrual flow.Working media 13 can be water or heat conduction wet goods coolant, working media 13 enters cooling-part 2 by cooling-part inlet 14, when the solar irradiation that converges is mapped on the solar module 1, because flowing of working media 13, too much heat can be taken away rapidly, carries out secondary heating through the working media 13 of the elementary heating of photoelectric conversion section by the heat collection device that tube connector 8 enters the photo-thermal conversion portion.
As shown in Figure 4, described parabolic condenser 7 is the supine grooved parabolic reflector of reflection, vacuum heat collection pipe 5 is positioned near the focal line of parabolic condenser 7, shining sunray on the grooved photo-thermal concentrator 7 converges near the vacuum heat collection pipe 5 that is positioned at its focal line efficiently, working media 13 in the vacuum heat collection pipe 5 is heated up rapidly, to reach the temperature requirement of working media next stage utilization, working media 13 is flowed out by photo-thermal conversion portion outlet 15 then, finishes heating process.
Azimuth follower 9 in the present embodiment, azimuth bracing frame 10, elevation angle follower 11, elevation angle bracing frame 12 are as shown in Figure 1, 2, this elevation angle follower 11 and elevation angle bracing frame 12 can drive the variation of photoelectric conversion section and photo-thermal conversion portion tracking sun altitude, azimuth follower 9 and azimuth bracing frame 10 then can drive photoelectric conversion section, photo-thermal conversion portion, tube connector and elevation angle follower 11, elevation angle bracing frame 12 rotates, and realize following the tracks of the function that solar azimuth changes.
Tracing collection thermoelectric utilization system of the present invention not only efficiently solves solar energy utilization ratio in the concentrating photovoltaic power generation tracing collection thermoelectric utilization system less than 20% drawback, and made full use of the heat energy more than 80%, the hot water that this tracing collection thermoelectric utilization system produces can be used for desalinization engineering, resident living water etc., therefore can obtain better economic benefit.
Embodiment two
Present embodiment is identical substantially with the basic structure of embodiment one, and its main distinction is the photoelectric conversion section of tracing collection thermoelectric utilization system and the automatic sun tracking mechanism that the photo-thermal conversion portion has basic synchronization respectively.Concrete structure as shown in Figure 5, the photoelectric conversion section of being made up of solar module 1, cooling-part 2, photoelectricity fixed support 3, level crossing combined concentrators 4 realizes function from the motion tracking sun by automatic sun tracking mechanism; The photo-thermal conversion portion of being made up of vacuum heat collection pipe 5, photo-thermal fixed support 6, parabolic condenser 7 is realized function from the motion tracking sun by another set of automatic sun tracking mechanism.Photoelectric conversion section is connected by heat-preserving hose 20 with the photo-thermal conversion portion.
The size of photo-thermal conversion portion can further increase in the present embodiment, and then the outlet temperature of working media 13 is further promoted, and has enlarged the subsequent applications scope of working media.
Embodiment three
The present embodiment also basic structure with embodiment one is identical substantially, and its main distinction is to have increased one-level heating process, makes working media 13 by heating through 3 grades of heating systems in the process of tracing collection thermoelectric utilization system of the present invention.
The tracing collection thermoelectric utilization system of present embodiment is shown in Fig. 6,7, the photo-thermal conversion portion is made up of primary light thermal conversion part 21 and secondary light thermal conversion part 25, secondary light thermal conversion part still is made up of vacuum heat collection pipe 5, photo-thermal fixed support 6, parabolic condenser 7, primary light thermal conversion part is made up of vacuum heat collection pipe 22, photo-thermal fixed support 23, parabolic condenser 24, working media 13 at first enters primary light thermal conversion part 21 after the photoelectric conversion section heating, enter secondary heating part 25 by heat-preserving hose 20 then.In addition, its characteristics also have, and solar cell module array is " one " font to be installed, and cooling-part is the circuitous circulation passage that is installed in the working media at solar panel back.
Owing to increased one-level heating process in the present embodiment, make that working media 13 can be through the heating of 3 grades of heating systems under situation about driving the automatic sun tracking mechanism of cover, not only reduce the cost of whole tracing collection thermoelectric utilization system, and enlarged the subsequent applications scope of working media 13.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.

Claims (8)

1. tracing collection thermoelectric utilization system, comprise automatic sun tracking mechanism, be installed in the photoelectric conversion section on the automatic sun tracking mechanism, fluid cooling device is equipped with at the solar battery group back of described photoelectric conversion section, it is characterized in that: also comprise the photo-thermal conversion portion that is installed on the automatic sun tracking mechanism, described photo-thermal conversion portion mainly is made of concentrator, near be positioned at the concentrator focal line vacuum heat collection device, and the fluid issuing of described cooling device connects the working media import of heat collection device by connecting line.
2. according to the described tracing collection thermoelectric utilization system of claim 1, it is characterized in that: the cooling-part at described solar module back adopts identical working media with heat collection device, its flow area is identical with heat collection device, and described working media is water or conduction oil.
3. according to the described tracing collection thermoelectric utilization system of claim 2, it is characterized in that: the concentrator of described photoelectric conversion section adopts plane mirror, and described photo-thermal conversion portion adopts the grooved parabolic reflector.
4. according to the described tracing collection thermoelectric utilization system of claim 3, it is characterized in that: described photoelectric conversion section and photo-thermal conversion portion are installed on the automatic sun tracking mechanism of a cover.
5, tracing collection thermoelectric utilization system according to claim 3 is characterized in that: described photoelectric conversion section and photo-thermal conversion portion are installed in synchronous automatic sun tracking mechanism respectively and drive.
6, according to claim 4 or 5 described tracing collection thermoelectric utilization systems, it is characterized in that: described solar cell module array is " V " font and installs, the concentrator of described plane mirror combination is made up of reflection mirror array, described reflection mirror array is divided into two groups, be installed in described frame center line both sides respectively, every group of reflection mirror array is made up of at least two row speculums.
7, tracing collection thermoelectric utilization system according to claim 6 is characterized in that: the irradiate light of described every row mirror reflects to the solar module of a corresponding side and irradiating width be equal to, or greater than the width of irradiated solar module.
8, according to claim 4 or 5 described tracing collection thermoelectric utilization systems, it is characterized in that, described solar cell module array is " one " font to be installed, and described cooling-part is the circuitous circulation passage that is installed in the working media at solar panel back.
CNA2007100243395A 2007-06-13 2007-06-13 Tracing collection thermoelectric comprehensive utilization system Pending CN101098115A (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010078838A1 (en) * 2009-01-06 2010-07-15 成都钟顺科技发展有限公司 Large tracking-type fresnel lens point-focusing solar system
CN102412333A (en) * 2011-11-23 2012-04-11 沈杰 Photovoltaic power generation and solar water heater combination application device
CN102867878A (en) * 2012-08-28 2013-01-09 深圳蓝波幕墙及光伏工程有限公司 Combined heat and power generation photovoltaic photo-thermal component, combined heat and power generation system and photovoltaic power station
CN110260530A (en) * 2019-05-24 2019-09-20 内蒙古工业大学 A kind of photo-thermal photovoltaic coupling energy supply is free of sun tracking can condenser
CN111059777A (en) * 2019-12-29 2020-04-24 鲸岛(杭州)科技有限公司 Energy-saving protection device suitable for solar heat collection system
CN115183307A (en) * 2022-07-05 2022-10-14 重庆赛迪热工环保工程技术有限公司 Light-gathering solar cogeneration heat collection equipment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010078838A1 (en) * 2009-01-06 2010-07-15 成都钟顺科技发展有限公司 Large tracking-type fresnel lens point-focusing solar system
CN102412333A (en) * 2011-11-23 2012-04-11 沈杰 Photovoltaic power generation and solar water heater combination application device
CN102867878A (en) * 2012-08-28 2013-01-09 深圳蓝波幕墙及光伏工程有限公司 Combined heat and power generation photovoltaic photo-thermal component, combined heat and power generation system and photovoltaic power station
CN102867878B (en) * 2012-08-28 2016-06-01 深圳蓝波绿建集团股份有限公司 A kind of cogeneration photovoltaic and photothermal assembly, co-generation unit and photovoltaic electric station
CN110260530A (en) * 2019-05-24 2019-09-20 内蒙古工业大学 A kind of photo-thermal photovoltaic coupling energy supply is free of sun tracking can condenser
CN110260530B (en) * 2019-05-24 2023-12-01 内蒙古天之风科技有限责任公司 Photo-thermal photovoltaic coupling energy supply tracking-free solar concentrator
CN111059777A (en) * 2019-12-29 2020-04-24 鲸岛(杭州)科技有限公司 Energy-saving protection device suitable for solar heat collection system
CN111059777B (en) * 2019-12-29 2021-08-06 山东中卓环保能源科技有限公司 Energy-saving protection device suitable for solar heat collection system
CN115183307A (en) * 2022-07-05 2022-10-14 重庆赛迪热工环保工程技术有限公司 Light-gathering solar cogeneration heat collection equipment
CN115183307B (en) * 2022-07-05 2024-04-09 重庆赛迪热工环保工程技术有限公司 Concentrating solar cogeneration heat collection equipment

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Open date: 20080102