CN204271978U - A kind of solar thermoelectric coproduction device - Google Patents
A kind of solar thermoelectric coproduction device Download PDFInfo
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- CN204271978U CN204271978U CN201420675244.5U CN201420675244U CN204271978U CN 204271978 U CN204271978 U CN 204271978U CN 201420675244 U CN201420675244 U CN 201420675244U CN 204271978 U CN204271978 U CN 204271978U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A kind of solar thermoelectric coproduction device, comprise collector lens and optical splitter, sunlight enters optical splitter and is divided into two-way after collector lens, one tunnel is incident to photovoltaic cell capable of generating power, the hot junction that another road is incident to electrothermal module realizes thermo-electric generation, the cold junction of electrothermal module installs heat radiation heater, plays the effect to electrothermal module heat radiation and externally heat supply simultaneously; The utility model achieves the comprehensive utilization of solar energy, and solar spectrum is divided into two-way, photovoltaic and the equal supplying power for outside of electrothermal module, and generating efficiency is high, and utilizes the external heat supply of cold junction heat dissipation capacity of electrothermal module, and overall Solar use efficiency is high; The temperature of electrothermal module cold junction can change in 100 DEG C, therefore, can the temperature range of heat supply wide, and whole device simple and compact for structure, cost is low.
Description
Technical field
The utility model belongs to technical field of solar utilization technique, particularly a kind of solar thermoelectric coproduction device.
Background technology
Along with the development of economic society, energy demand grows with each passing day, and fossil energy exists pollutes day by day serious and non-renewable problem, and the clean reproducible energy of development is imperative.Solar energy rich reserves is a kind of regenerative resource of environment-protecting clean, has the advantages such as resource abundance, longevity, widely distributed, safe, clean, technically reliable.China has a vast territory, and has abundant solar energy resources.It is estimated, China land accepts solar radiation every year can about 50 × 10
15mJ, national solar radiation total amount is about 3350 ~ 8370MJ/m
2, intermediate value is 5860MJ/m
2.Therefore, develop solar energy and have very important meaning to China's energy development from now on.
China develops the history that solar energy has decades, particularly solar water heater has become the first big country of production and selling in the world, ended for the end of the year 2013, China's photovoltaic plant installed capacity reaches 16.5GW, and the output of photovoltaic cell also reaches the half of world wide production.However, the cogeneration system of solar energy is but very rare.So-called solar cogeneration; utilize solar energy to generate electricity and heat supply exactly simultaneously; improve the utilization ratio of solar energy; reduce costs; and the scope of application is wider; be that the more efficient large solar of one utilizes technology, the popularization of this technology has very important meaning by energy-saving and emission-reduction, protection of the environment.
In prior art, also there is the device of solar cogeneration.Application number is the patent of invention " high-efficiency low-cost solar co-generation unit " of 200810117063.X, adopt reflecting condenser that sunlight is converged at heat absorption filter, splendid attire heating agent in filter inner chamber, absorbs a part of solar energy, and remaining fractional transmission is to photovoltaic cell capable of generating power.This device is only photovoltaic cell capable of generating power, and in addition, reflecting condensation focus is in heat absorption filter, and disperse when entering photovoltaic cell, the generating efficiency of battery is low.Application number be 200710063481.0 patent of invention " solar photoelectric and light-heat integration collector ", application number be 201220068262.8 utility model patent " photovoltaic and photothermal solar composite component " and application number be 201220090618.8 utility model patent " a kind of photovoltaic and photothermal integral assembly ", the basic structure of three is comparatively similar, be all that heat radiation heater is installed at the back side of photovoltaic cell, utilize the waste heat of photovoltaic cell itself to carry out heat supply.The patent of invention " solar energy composite of a kind of photo-thermal mixed power generation and heat utilization integration utilizes system " that the patent of invention " photovoltaic thermoelectricity heating module and photovoltaic electric heating water system " that application number is 201110103847.9, application number are 201010214752.X, both are all a kind of terrace structures, photovoltaic cell, thermoelectric chip group and radiator three are stacked together, thermoelectric chip utilizes the cogeneration of photovoltaic cell, and radiator then utilizes waste heat for supplying further.Application number is the patent of invention " cogeneration of heat and power of solar generator and solar heat " of 200880025371.8, is to absorb solar radiation to pass to electrothermal module generating, and the cold junction heat of electrothermal module carries out heat supply.
In these existing technical schemes, the technical scheme that many employings are stacked, utilizes the waste heat of photovoltaic battery panel to carry out generating electricity or heat supply: (1) photovoltaic cell back side installation of heat radiator; (2) thermoelectric chip group is installed at the photovoltaic cell back side, the cold junction installation of heat radiator again of chipset.Such mode, is limited to the temperature limiting of photovoltaic cell itself, and the quality of waste heat is lower, and heat supply temperature is generally no more than 50 DEG C, back mounted thermoelectric chip group due to the temperature difference too low, generated output and efficiency are all very low.Application number is the patent of invention " high-efficiency low-cost solar co-generation unit " of 200810117063.X, also use overlapped way, but the heat absorption filter mentioned in dispel the heat heater and literary composition, be be positioned over photovoltaic cell surface, but because the reflecting condensation focus of sunlight is in heat absorption filter, the light entering photovoltaic cell is dispersed, generating efficiency is low, in addition, same reason, heat supply temperature is generally no more than 50 DEG C.Application number is the patent of invention " cogeneration of heat and power of solar generator and solar heat " of 200880025371.8, and only use the generating of thermoelectric chip group, and do not adopt photovoltaic cell, overall generating efficiency is lower.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of solar thermoelectric coproduction device, adopt the mode of light splitting, sunlight after focusing on is divided into two-way, and generating efficiency is high, and the solar energy utilization ratio of entirety is high, in addition, can provide the heat of more high-quality, heat supply temperature can change within 100 DEG C, expands heating range.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of solar thermoelectric coproduction device, comprise collector lens 1 and optical splitter 2, sunlight enters optical splitter 2 and is divided into two-way after collector lens 1, one tunnel is incident to photovoltaic cell 3 and generates electricity, the hot junction that another road is incident to electrothermal module 5 realizes thermo-electric generation, the cold junction of electrothermal module 5 installs heat radiation heater 6, plays simultaneously and to dispel the heat to electrothermal module 5 and the effect of externally heat supply.
Described collector lens 1 uses ultra-clear glasses or transparent plastic to be made, and focusing ratio is between 100 and 1000.
The described road light being incident to photovoltaic cell 3 mainly comprises visible ray and the near infrared portion of wavelength below 1.1 microns; Another Lu Guangwei remains wave band, mainly comprises far infrared and ultraviolet portion, is all incident to electrothermal module 5.
Described electrothermal module 5 adopts the thermoelectric chip group of single stage thermoelectric chip or multi-stage cascade.
The making material of described thermoelectric chip is different with temperature, and be applied in 300 DEG C and adopt bismuth telluride with environment, between 300 DEG C to 500 DEG C, environment adopts lead telluride, and more than 500 DEG C environment adopt antimony cobalt.
The hot junction of described electrothermal module 5 is provided with the absorber coatings 4 ultraviolet light and infrared light to high-selenium corn characteristic.
Described heat radiation heater 6 comprises one has fins set with the cavity 9 of water inlet/gas port 7 and water outlet/gas port 8 in cavity 9, and fins set adopts plate fin 10 or pin fin 11 form.
Described heat radiation heater 6 uses metal material processing to form, based on copper or aluminium.
The heat radiation heating medium of described heat radiation heater 6 is water or air, for building provides hot water or hot blast.
Compared with prior art, the beneficial effects of the utility model are:
1, achieve the comprehensive utilization of solar energy, solar spectrum is divided into two-way, photovoltaic and the equal supplying power for outside of electrothermal module, generating efficiency is high, and utilizes the external heat supply of cold junction heat dissipation capacity of electrothermal module, and overall Solar use efficiency is high.The temperature of electrothermal module cold junction can change in 100 DEG C, therefore, can the temperature range of heat supply wide.
2, whole device simple and compact for structure, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model heat radiation heater.
Fig. 3 is the structural representation of the utility model plate fin type radiator.
Fig. 4 is the structural representation of the utility model pin fin radiator.
Embodiment
Execution mode of the present utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of solar thermoelectric coproduction device, comprises collector lens 1 and optical splitter 2, and collector lens 1 uses ultra-clear glasses or transparent plastic to be made, and focusing ratio is between 100 and 1000.Sunlight enters optical splitter 2 and is divided into two-way after collector lens 1, and a road light mainly comprises visible ray and the near infrared portion of wavelength below 1.1 microns, is incident to photovoltaic cell 3 and generates electricity; Another Lu Guangwei remains wave band, mainly comprises far infrared and ultraviolet portion, and the hot junction being all incident to electrothermal module 5 realizes thermo-electric generation.In order to improve the utilization ratio of electrothermal module 5 pairs of light, the hot junction of electrothermal module 5 is coated with the absorber coatings 4 ultraviolet light and infrared light to high-selenium corn characteristic, the cold junction of electrothermal module 5 installs heat radiation heater 6, plays simultaneously and to dispel the heat to electrothermal module 5 and the effect of externally heat supply.
Electrothermal module 5 adopts the thermoelectric chip group of single stage thermoelectric chip or multi-stage cascade, the making material of thermoelectric chip is different with temperature, be applied in 300 DEG C and adopt bismuth telluride with environment, between 300 DEG C to 500 DEG C, environment adopts lead telluride, and more than 500 DEG C environment adopt antimony cobalt.
As shown in Figure 2, Figure 3 and Figure 4, the main body 9 of heat radiation heater 6 is a cavity, and cavity two ends are into water/gas port 7 and water outlet/gas port 8 respectively, and inside is then fins set, can adopt the form such as plate fin 10 or pin fin 11.Heat radiation heater 6 entirety uses metal material processing to form, based on copper or aluminium.Heat radiation heating medium is water or air, for building provides hot water or hot blast.
Manufacture method of the present utility model is: employing ultra-clear glasses makes the collector lens 1 that a focusing ratio meets the demands, then composite material is adopted to make an optical splitter 2, then photovoltaic cell 3 and electrothermal module 5 is bought, at the absorber coatings 4 that hot-end coating one deck of electrothermal module is commercial, simultaneously according to the demand of heat radiation and heat supply, design heat radiation heater 6, inner fin can adopt plate fin 10 or pin fin 11, and fin configuration is optimized, obtain optimum fins set form, next, adopt metallic copper or aluminium, machined by outer committee.Finally these parts are installed together according to the optical path requirements shown in Fig. 1, just define a solar thermoelectric coproduction device.Multiple such device can form a larger device, thus obtains larger generating and heating power.
Operation principle of the present utility model: when this device busy, adopts sunlight automatic tracking device, makes collector lens 1 all the time in the face of the sun.Sunlight focuses on through collector lens 1 becomes the higher light of a branch of energy density, is then divided into two-way by optical splitter 2.One tunnel mainly comprises visible ray and the near infrared portion of wavelength below 1.1 microns, belongs to the wave band that photovoltaic utilizes, incides in photovoltaic panel 3, be converted to electric energy, another road is remaining wave band, mainly produces heat energy, incides on absorber coatings 4, be converted into heat energy, conduct to the hot junction of electrothermal module 5, at the cold junction of electrothermal module 5, dispelled the heat by radiator 6, like this, the hot junction of electrothermal module 5 and cold junction just form the temperature difference.Thermoelectric chip is a kind of generating semiconductor device based on Seebeck effect, the loop be made up of two kinds of different semiconductive materials (being called as p-type and N-shaped material respectively), if the temperature of two joints is different, one end is heat input and hot junction, the other end is heat output and cold junction, then can form electrical potential difference in loop.In practical application, usually p-type and n-type semiconductor are connected into multiple pn to composition thermoelectric chip.So due to Seebeck effect, electrothermal module 5 just can supplying power for outside.Radiator 6 externally dispels the heat, and needs air or water flows through radiating fin, and going to absorb this part needs dispersed heat, and this raises making the temperature of air or water, thus realizes the object of external heat supply.
Claims (9)
1. a solar thermoelectric coproduction device, it is characterized in that, comprise collector lens (1) and optical splitter (2), sunlight enters optical splitter (2) and is divided into two-way after collector lens (1), one tunnel is incident to photovoltaic cell (3) generating, the hot junction that another road is incident to electrothermal module (5) realizes thermo-electric generation, the cold junction of electrothermal module (5) installs heat radiation heater (6), plays the effect to electrothermal module (5) heat radiation and externally heat supply simultaneously.
2. solar thermoelectric coproduction device according to claim 1, is characterized in that, described collector lens (1) uses ultra-clear glasses or transparent plastic to be made, and focusing ratio is between 100 and 1000.
3. solar thermoelectric coproduction device according to claim 1, is characterized in that, described in be incident to photovoltaic cell (3) a road light mainly comprise visible ray and the near infrared portion of wavelength below 1.1 microns; Another Lu Guangwei remains wave band, mainly comprises far infrared and ultraviolet portion, is all incident to electrothermal module (5).
4. solar thermoelectric coproduction device according to claim 1, is characterized in that, described electrothermal module (5) adopts the thermoelectric chip group of single stage thermoelectric chip or multi-stage cascade.
5. solar thermoelectric coproduction device according to claim 4, it is characterized in that, the making material of described thermoelectric chip is different with temperature, is applied in 300 DEG C and adopts bismuth telluride with environment, between 300 DEG C to 500 DEG C, environment adopts lead telluride, and more than 500 DEG C environment adopt antimony cobalt.
6. solar thermoelectric coproduction device according to claim 1, it is characterized in that, the hot junction of described electrothermal module (5) is provided with the absorber coatings (4) ultraviolet light and infrared light to high-selenium corn characteristic.
7. solar thermoelectric coproduction device according to claim 1, it is characterized in that, described heat radiation heater (6) comprises a cavity (9) with water inlet/gas port (7) and water outlet/gas port (8), cavity has fins set in (9), and fins set adopts plate fin 10 or pin fin 11 form.
8. solar thermoelectric coproduction device according to claim 1 or 7, is characterized in that, described heat radiation heater (6) uses metal material processing to form, based on copper or aluminium.
9. solar thermoelectric coproduction device according to claim 8, it is characterized in that, the heat radiation heating medium of described heat radiation heater (6) is water or air, for building provides hot water or hot blast.
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| CN201420675244.5U CN204271978U (en) | 2014-11-05 | 2014-11-05 | A kind of solar thermoelectric coproduction device |
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| CN201420675244.5U CN204271978U (en) | 2014-11-05 | 2014-11-05 | A kind of solar thermoelectric coproduction device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378050A (en) * | 2014-11-05 | 2015-02-25 | 中国华能集团清洁能源技术研究院有限公司 | Solar co-generation device |
| CN105978473A (en) * | 2016-04-08 | 2016-09-28 | 合肥中南光电有限公司 | Concentrating photovoltaic module with dual solar batteries |
| CN106653921A (en) * | 2015-07-17 | 2017-05-10 | 中国华能集团清洁能源技术研究院有限公司 | Solar generating apparatus |
| CN110190807A (en) * | 2019-06-24 | 2019-08-30 | 北京大学深圳研究生院 | A kind of optically focused light splitting photovoltaic system |
| CN110690846A (en) * | 2019-09-29 | 2020-01-14 | 西南大学 | Photo-thermal-electric conversion device based on inclined silicon nanowires |
| CN112050485A (en) * | 2020-08-27 | 2020-12-08 | 广东工业大学 | Solar cogeneration device |
-
2014
- 2014-11-05 CN CN201420675244.5U patent/CN204271978U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378050A (en) * | 2014-11-05 | 2015-02-25 | 中国华能集团清洁能源技术研究院有限公司 | Solar co-generation device |
| CN106653921A (en) * | 2015-07-17 | 2017-05-10 | 中国华能集团清洁能源技术研究院有限公司 | Solar generating apparatus |
| CN105978473A (en) * | 2016-04-08 | 2016-09-28 | 合肥中南光电有限公司 | Concentrating photovoltaic module with dual solar batteries |
| CN110190807A (en) * | 2019-06-24 | 2019-08-30 | 北京大学深圳研究生院 | A kind of optically focused light splitting photovoltaic system |
| CN110690846A (en) * | 2019-09-29 | 2020-01-14 | 西南大学 | Photo-thermal-electric conversion device based on inclined silicon nanowires |
| CN112050485A (en) * | 2020-08-27 | 2020-12-08 | 广东工业大学 | Solar cogeneration device |
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