CN203192822U - Solar energy electrothermal utilization device - Google Patents
Solar energy electrothermal utilization device Download PDFInfo
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- CN203192822U CN203192822U CN2013202088785U CN201320208878U CN203192822U CN 203192822 U CN203192822 U CN 203192822U CN 2013202088785 U CN2013202088785 U CN 2013202088785U CN 201320208878 U CN201320208878 U CN 201320208878U CN 203192822 U CN203192822 U CN 203192822U
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- frequency division
- plated film
- mirror
- fresnel lenses
- photovoltaic cell
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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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Abstract
The utility model relates to a solar energy electrothermal utilization device to solve the problems that conventional similar products are unreasonably designed, utilization method of solar energy is single and utilization efficiency is low. The solar energy electrothermal utilization device comprises a Fresnel lens, a coated frequency division mirror, a photovoltaic cell, a heat receiver and a condenser mirror, wherein the Fresnel lens and the coated frequency division mirror are arranged between the photovoltaic cell and the heat receiver; the Fresnel lens and the coated frequency division mirror receive condenser light beams of the condenser mirror; either the photovoltaic cell or the heat receiver is positioned at the focusing place of the Fresnel lens, and the rest is positioned at the focusing place of the condenser light beams reflected by the coated frequency division mirror. The solar energy electrothermal utilization device is simple in structure principle, flexible in design, low in production cost and wide in application; photovoltaic utilization and heat utilization can be reasonably allocated based on actual requirements, so that efficiency of electricity utilization and heat utilization of the solar energy is effectively improved; besides, the solar energy electrothermal utilization device is applicable to the solar energy utilization field or helps to improve the structures of the similar products.
Description
Technical field
The utility model relates to the solar energy utilization, is a kind of solar-electricity heat utilization device.
Background technology
At present, solar energy mainly contains heat utilization and electricity utilizes two aspects.Heat utilization refers to change the luminous energy of sunlight into heat energy, as solar water heater.Electricity utilization mainly contains photovoltaic generation and photo-thermal power generation, and the principle of photovoltaic generation is photovoltaic effect, when the solar light irradiation photovoltaic cell, will produce electromotive force, connects load and produces electric energy.The principle of photo-thermal power generation is to utilize absorber to absorb sunlight as high temperature heat source, and hot working fluid absorbs heat, enters next step power cycle, and common have steam turbine and a gas turbine etc., produces mechanical energy, and drives generator for electricity generation.The common form of photo-thermal power generation has dish formula, slot type and tower system.
Prior art, Granted publication CN202364156U as the Chinese patent literature publication, August 1 2012 Granted publication day, the utility model name is called " solar modules structure ", it mainly includes module casing, Fresnel Lenses group, sunshading board and receiver assembly, the module casing comprises that one is made up of middle part aluminium sheet and the two ends aluminium sheet of base plate and dual-side sheet metal forming, and middle part aluminium sheet base plate is provided with receiver assembly.
Also just like the Granted publication CN201918922U of Chinese patent literature publication, August 3 2011 Granted publication day, utility model is " portable Fresnel Lenses solar energy automatic tracking generating heating dual-purpose apparatus ", its primary structure is being contained on the support of the detachable property of Fresnel Lenses, support is packed on the two-dimentional real-time automatic tracking device, also has near the heat collection function body in focus position that is positioned at Fresnel Lenses, it simultaneously is photovoltaic cell, another side is completely reflecting mirror, the heat collection function body is contained on the function transaxle that is positioned on the frame, rotate this can realize the generating and thermal-arrest between mutual conversion.
Be not difficult to find out that from above two documents existing helioplant is mostly only realized the utilization of a certain mode, and does not realize that multiple mode fully utilizes, so the solar energy utilization ratio is lower.In addition, existing helioplant is directly generated electricity solar light focusing to photovoltaic cell by Fresnel Lenses when electricity utilizes, but according to Einsteinian photon energy equation, the photon of shortwave has higher energy, and the long wave photon energy is just relatively low.For photovoltaic cell, this effect just embodies very obviously, because wavelength will can not utilize fully greater than the photon of photovoltaic cell semi-conducting material energy gap.This that is to say that some photon in the sunlight does not only have value for photovoltaic cell, because of the raise temperature of photovoltaic cell of photo-thermal, has reduced power conversion efficiency (pce) on the contrary.So existing helioplant still utilizes all to have deficiency on the mode no matter be in structure aspects, haves much room for improvement.
Summary of the invention
For overcoming above-mentioned deficiency, the utility model is intended to provide a kind of solar-electricity heat utilization device to this area, makes it solve existing like product structure and owes rationally, and solar energy utilizes the technical problem that mode is comparatively single, efficient is lower.Its objective is and be achieved through the following technical solutions.
This solar-electricity heat utilization device comprises Fresnel Lenses, plated film frequency division mirror, photovoltaic cell, hot receiver, condenser mirror, its structural feature is that described Fresnel Lenses, plated film frequency division mirror are between described photovoltaic cell, hot receiver, described Fresnel Lenses, plated film frequency division mirror are accepted the optically focused light beam of described condenser mirror, described photovoltaic cell, both one of hot receiver are positioned at focusing place of described Fresnel Lenses, and another person is positioned at the described optically focused beams focusing of described plated film frequency division mirroring place.Compared with prior art, the utility model passes through in conjunction with condenser mirror (secondary mirror), Fresnel Lenses (two secondary mirrors) and plated film frequency division mirror, mainly in order to realize following purpose: 1, by setting up plated film frequency division mirror, reach the purpose of sunlight frequency division, classification utilization, can effectively improve the solar energy utilization ratio.2, by the saturating combination of condenser mirror and Fresnel, realize secondary condensation, make the spot intensity of focusing place reach designing requirement, and uniformity is better, can improve the efficient of photovoltaic cell, prevent from damaging photovoltaic cell because focus occurring.3, condenser system generally all cooperates sunlight tracking system to use, but because the problem of actual design manufacture process, make that the tracking system cost is higher, and the utility model adopts secondary focusing, make the optically focused hot spot less because of the influence of tracking system error, thereby can reduce the required precision of tracking system relatively, reduce equipment cost.
In conjunction with such scheme, available concrete scheme one structure is: described plated film frequency division mirror is for seeing through short wavelength light, reflection longwave optical, described photovoltaic cell is positioned at focusing place that described Fresnel Lenses focuses on short wavelength light, and described hot receiver is positioned at focusing place of described plated film frequency division mirroring longwave optical.By this kind plated film frequency division mirror is set, make in the optically focused light beam of condenser mirror and can be seen through plated film frequency division mirror by the short wavelength light that photovoltaic cell utilizes, and realize secondary condensation by Fresnel Lenses, finally carried out photovoltaic generation by the photovoltaic cell utilization; The longwave optical that can't be utilized by photovoltaic cell in the optically focused light beam then directly by the mirroring of plated film frequency division to hot receiver, carry out heat utilization or photo-thermal power generation.So not only reach the purpose of rationally utilizing sunlight, and can effectively reduce invalid light to the adverse effect of photovoltaic cell, improve the efficient of photovoltaic cell.
By scheme one is changed, the structure that can obtain scheme two is: described plated film frequency division mirror is for seeing through longwave optical, reflection short wavelength light, described hot receiver is positioned at focusing place that described Fresnel Lenses focuses on longwave optical, and described photovoltaic cell is positioned at focusing place of described plated film frequency division mirroring short wavelength light.This scheme is compared scheme one, is the light-filtering characteristic by change plated film frequency division mirror, thereby can change the position of photovoltaic cell and hot receiver, also can realize the purpose of this utility model.
In such scheme one and scheme two structures, being used in combination of described Fresnel Lenses and plated film frequency division mirror replaces with the Fresnel Lenses that the surface is coated with the frequency division plated film.By this kind structure, can reduce use cost, and structure simplifies more, install and use more convenient.
Described condenser mirror is any one among dish formula, slot type and the tower heliostat three.Be preferably dish formula and slot type.
The reflecting surface of described plated film frequency division mirror is any one of plane, convex surface, concave surface three.When the combination of Fresnel Lenses and plated film frequency division mirror replaced with the surface and is coated with the Fresnel Lenses of frequency division plated film, reflecting surface can be similarly any one of plane, convex surface, concave surface three.The form of specifically choosing of reflecting surface is determined according to the required thermal acceptor form of reality, required spot size and installation site etc.
According to scheme one structure, the method of utilizing of this solar-electricity heat utilization device is: at first by condenser mirror sunlight is carried out an optically focused and form the optically focused light beam, the optically focused light beam irradiates is to described plated film frequency division mirror and Fresnel Lenses, light splitting, reflex through plated film frequency division mirror, the light beam that sees through plated film frequency division mirror carries out secondary condensation by Fresnel Lenses, light beam after the secondary condensation is received by described photovoltaic cell and utilizes, the light beam that sees through plated film frequency division mirror, and is received by hot receiver and to utilize to described hot receiver by the mirroring of plated film frequency division.By this kind mode, realized sunlight frequency division, classification utilization, effectively improved the solar energy utilization ratio.
Utilizing in the method for such scheme one, the optically focused light beam of described condenser mirror reflection is behind described Fresnel Lenses, because its refractive index difference of light of different wave length, dispersion phenomenon to a certain degree can appear, and dispersion phenomenon can influence spotlight effect, this by prior art, certainly will go to overcome this factor for realizing that more high fluence density is adverse factors.But for photovoltaic cell, exactly can utilize the principle of chromatic dispersion, select suitable Fresnel Lenses to amplify dispersion phenomenon, by like this, make this part sunlight that sees through Fresnel Lenses be divided into the spectral distribution of different wave length through chromatic dispersion, arrange the photovoltaic cell of corresponding band gap according to this spectral distribution, can realize that photovoltaic cell efficiently utilizes the purpose of luminous energy.
According to the application of above-mentioned chromatic dispersion principle, the method for utilizing of such scheme one is improved, can obtain following two kinds of improvement projects.
Utilize method improvement scheme one: select the long-focus Fresnel Lenses, the feasible light that sees through the different wave length of Fresnel Lenses has enough light paths that it is scatter, and forms the band that makes things convenient for photovoltaic cell to lay.In order further to separate different-waveband effectively, be that the conical surface is arranged with the distribution design of photovoltaic cell, make the light beam that sees through Fresnel Lenses form band at the conical surface, so not only the photovoltaic cell of convenient corresponding band gap is arranged to corresponding spectral position, and is conducive to improve the efficient of photovoltaic cell.
Utilize method improvement scheme two: cancel described plated film frequency division mirror, the optically focused light beam of described condenser mirror reflection is through described Fresnel Lenses secondary condensation, and the light beam after the secondary condensation is received by described photovoltaic cell and utilizes.This scheme, namely whole sunlights utilize chromatic dispersion principle to be carried out photovoltaic generation by the reception of the photovoltaic cell of different band gaps.
The utility model structural principle is simple, flexible design, low cost of manufacture, applied widely, can be according to actual needs, reasonable distribution light utilizes and heat utilization, effectively improve the efficient of solar-electricity utilization and heat utilization, be fit to be applied to field of solar energy utilization, or the architecture advances of like product.
Description of drawings
Fig. 1 is the theory structure schematic diagram of the utility model scheme one.
Fig. 2 is the theory structure schematic diagram of the utility model scheme two.
Fig. 3 is the structural representation that the utility model scheme one adopts Fresnel Lenses surface plating frequency division plated film.
Fig. 4 is the structural representation that the utility model photovoltaic cell cooperates the Fresnel Lenses light splitting to lay.
Fig. 5 is that the utility model utilizes the arrange improvement project one theory structure schematic diagram of photovoltaic cell of Fresnel Lenses chromatic dispersion principle.
Fig. 6 is that the utility model utilizes the arrange improvement project two theory structure schematic diagrames of photovoltaic cell of Fresnel Lenses chromatic dispersion principle.
The name of sequence number is called among the figure: 1, Fresnel Lenses, 2, plated film frequency division mirror, 3, photovoltaic cell, 4, hot receiver, 5, condenser mirror, 6, the frequency division plated film.
Embodiment
Now by reference to the accompanying drawings, the utility model is further described.
As shown in Figure 1 and Figure 2, this solar-electricity heat utilization device comprises Fresnel Lenses 1, plated film frequency division mirror 2, condenser mirror 5, photovoltaic cell 3, hot receiver 4.
Embodiment one: as shown in Figure 1, plated film frequency division mirror fits in Fresnel Lenses one side surface, and plated film frequency division mirror is for seeing through short wavelength light, reflection longwave optical.Plated film frequency division mirror, Fresnel Lenses are positioned at photovoltaic cell, hot receiver between the two, and plated film frequency division mirror, Fresnel Lenses are accepted the optically focused light beam of condenser mirror.Among the figure, photovoltaic cell is positioned at Fresnel Lenses focusing place, and hot receiver is positioned at plated film frequency division mirror reflecting and gathering beams focusing place.The principle of this scheme is: by condenser mirror sunlight is carried out first time optically focused and form the optically focused light beam, optically focused light beam directive plated film frequency division mirror and Fresnel Lenses.Because of plated film frequency division mirror for seeing through short wavelength light, reflection longwave optical, so the short wavelength light in the optically focused light beam will be through plated film frequency division mirror, and by the Fresnel Lenses secondary condensation, the optically focused light beam behind the optically focused acts on photovoltaic cell, the realization photovoltaic generation; The longwave optical that sees through plated film frequency division mirror will be by the mirroring of plated film frequency division, and focuses on hot receiver, realizes heat utilization or photo-thermal power generation.
Embodiment two: as shown in Figure 2, change the light-filtering characteristic of plated film frequency division mirror among the embodiment one, plated film frequency division mirror is set to see through longwave optical, reflection short wavelength light, and the position of photovoltaic cell and hot receiver among the transposing embodiment one, be that hot receiver is positioned at Fresnel Lenses focusing place, photovoltaic cell is positioned at plated film frequency division mirror reflecting and gathering beams focusing place.The principle of this scheme is: by condenser mirror sunlight is carried out first time optically focused and form the optically focused light beam, optically focused light beam directive plated film frequency division mirror and Fresnel Lenses.Because of plated film frequency division mirror for seeing through longwave optical, reflection short wavelength light, so the longwave optical in the optically focused light beam will be through plated film frequency division mirror, and by the Fresnel Lenses secondary condensation, the optically focused light beam behind the optically focused acts on hot receiver, realization heat utilization or photo-thermal power generation; The short wavelength light that sees through plated film frequency division mirror will be by the mirroring of plated film frequency division, and focuses on photovoltaic cell, realizes photovoltaic generation.
In above-described embodiment one, as shown in Figure 3, Fresnel Lenses is replaceable for directly adopting the surface to be coated with the Fresnel Lenses of frequency division plated film 6 with the scheme that plated film frequency division mirror separates use, so also can realize identical purpose.
Based on the operation principle of above-described embodiment one, arranging of the utility model photovoltaic cell designed, to improve the efficient of photovoltaic cell.The specific design scheme is: utilize the chromatic dispersion of Fresnel Lenses, in the focusing place generation spectral distribution of Fresnel Lenses, according to this spectral distribution, the photovoltaic cell of corresponding band gap is directly arranged to focusing place of Fresnel Lenses.For example shown in Fig. 4, when sunlight incided on the Fresnel Lenses, the short sunlight of ripple reflected through Fresnel Lenses, because its refractive index is higher, will fall the A place, and the sunlight of wavelength will be fallen the B place.According to this principle, with photovoltaic cell with band gap from big to small, arrange to B from A, make the photovoltaic cell of different band gaps absorb corresponding sunlight spectral coverage, thereby improve photoelectric efficiency.
According to the design of arranging of above-mentioned photovoltaic cell, the utility model solar energy utilizes mode also to can be used as following improvement.
Improve embodiment one: the Fresnel Lenses in scheme one structure is chosen as the Fresnel Lenses of long-focus, is conducive to form in focusing place of Fresnel Lenses the spectrum of easier differentiation like this.Again arranging of photovoltaic cell being designed to the conical surface arranges, as shown in Figure 5, in formed conical surface spectrum, the conical surface is near the band at the top big photovoltaic cell of band gap that is fit to arrange, and the conical surface is near the band of the bottom little photovoltaic cell of band gap that is fit to arrange.Certainly, will form gradual change at the conical surface by top to bottom arranges.
Improve embodiment two: as shown in Figure 6, plated film frequency division mirror in cancellation scheme one structure, namely directly by Fresnel Lenses the optically focused light beam that condenser mirror reflects is carried out secondary condensation, and the chromatic dispersion principle of the utilizing Fresnel Lenses equally photovoltaic cell of arranging, also can make photovoltaic cell reach higher utilization ratio.
The design of above embodiment and operation principle is intended to illustrate technological means of the present utility model, and unrestricted technical scope of the present utility model.Those skilled in the art do apparent improvement in conjunction with existing common practise to the utility model; for example: the concavo-convex pattern that only changes Fresnel Lenses, plated film frequency division mirror, condenser mirror; or simply photovoltaic cell, hot receiver are replaced with other similar light use device, then should fall within the scope that the utility model protects.
Claims (9)
1. solar-electricity heat utilization device, it is characterized in that this device comprises Fresnel Lenses (1), plated film frequency division mirror (2), photovoltaic cell (3), hot receiver (4), condenser mirror (5), described Fresnel Lenses, plated film frequency division mirror are between described photovoltaic cell, hot receiver, described Fresnel Lenses, plated film frequency division mirror are accepted the optically focused light beam of described condenser mirror, described photovoltaic cell, both one of hot receiver are positioned at focusing place of described Fresnel Lenses, and another person is positioned at the described optically focused beams focusing of described plated film frequency division mirroring place.
2. according to the described solar-electricity heat utilization device of claim 1, it is characterized in that described plated film frequency division mirror (2) is for seeing through short wavelength light, reflection longwave optical, described photovoltaic cell (3) is positioned at focusing place that described Fresnel Lenses 1 focuses on short wavelength light, and described hot receiver (4) is positioned at focusing place of described plated film frequency division mirror (2) reflection longwave optical.
3. according to the described solar-electricity heat utilization device of claim 1, it is characterized in that described plated film frequency division mirror (2) is for seeing through longwave optical, reflection short wavelength light, described hot receiver (4) is positioned at focusing place that described Fresnel Lenses (1) focuses on longwave optical, and described photovoltaic cell (3) is positioned at focusing place of described plated film frequency division mirror (2) reflection short wavelength light.
4. according to claim 2 or 4 described solar-electricity heat utilization device, it is characterized in that the Fresnel Lenses (1) that replaces with the surface and be coated with frequency division plated film (6) that is used in combination of described Fresnel Lenses (1) and plated film frequency division mirror (2).
5. according to the described solar-electricity heat utilization device of claim 1, it is characterized in that described condenser mirror (5) is any one among dish formula, slot type and the tower heliostat three.
6. according to the described solar-electricity heat utilization device of claim 1, the reflecting surface that it is characterized in that described plated film frequency division mirror (2) is any one of plane, convex surface or concave surface three.
7. according to the described solar-electricity heat utilization device of claim 2, the optically focused light beam that it is characterized in that described condenser mirror (5) reflection forms spectral distribution behind described Fresnel Lenses (1), arrange the photovoltaic cell (3) of corresponding band gap according to this spectral distribution.
8. according to the method for utilizing of the described solar-electricity heat utilization device of claim 7, it is characterized in that selecting long-focus Fresnel Lenses (1), and be that the conical surface is arranged with the distribution design of photovoltaic cell (3), make the light beam through Fresnel Lenses form band at the conical surface.
9. according to the method for utilizing of the described solar-electricity heat utilization device of claim 7, it is characterized in that cancelling described plated film frequency division mirror (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202088785U CN203192822U (en) | 2013-04-16 | 2013-04-16 | Solar energy electrothermal utilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202088785U CN203192822U (en) | 2013-04-16 | 2013-04-16 | Solar energy electrothermal utilization device |
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| CN203192822U true CN203192822U (en) | 2013-09-11 |
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| CN2013202088785U Expired - Lifetime CN203192822U (en) | 2013-04-16 | 2013-04-16 | Solar energy electrothermal utilization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258894A (en) * | 2013-04-16 | 2013-08-21 | 杨浩仁 | Solar energy electric heat utilization device and utilization method thereof |
-
2013
- 2013-04-16 CN CN2013202088785U patent/CN203192822U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258894A (en) * | 2013-04-16 | 2013-08-21 | 杨浩仁 | Solar energy electric heat utilization device and utilization method thereof |
| CN103258894B (en) * | 2013-04-16 | 2015-07-01 | 杨浩仁 | Solar energy electric heat utilization device and utilization method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20150701 |
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| RGAV | Abandon patent right to avoid regrant |