CN1800745A - Solar concentrator lens with curved surface - Google Patents
Solar concentrator lens with curved surface Download PDFInfo
- Publication number
- CN1800745A CN1800745A CN 200610037849 CN200610037849A CN1800745A CN 1800745 A CN1800745 A CN 1800745A CN 200610037849 CN200610037849 CN 200610037849 CN 200610037849 A CN200610037849 A CN 200610037849A CN 1800745 A CN1800745 A CN 1800745A
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- China
- Prior art keywords
- carriage
- curved surface
- glass reflector
- curvature
- solar concentrator
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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
Abstract
The invention relates to a curve collecting mirror, belonging to the solar energy utilization technique, which comprises a frame, a support on the frame, a glass mirror with two ends mounted on the support, and a curvature forming device. Wherein, one end of curvature forming device is connected to the glass mirror while another end is connected to the frame or the connection element of support; said two ends can deform the glass mirror to form needed curvature. The invention avoids the mould hot-bending molding process with high cost to use the pushing device to prepare the curve mirror into needed curve surface, with simplified process, lower cost, and the application for the development of solar energy utilization.
Description
Technical field
The present invention relates to a kind of solar concentrator lens with curved surface, especially a kind of solar concentrator lens with curved surface that can be used for various solar concentrating systems such as solar energy thermal-power-generating, concentrating photovoltaic power generation belongs to the solar energy utilization
Technical field.
Background technology
Solar energy is the abundantest regenerative resource of resource, and is inexhaustible, has special advantages and huge development and use potentiality, makes full use of the coordinated development that solar energy helps keeping getting along amiably and peacefully of man and nature and energy and environment.Yet the energy-flux density of solar energy is low, in order to obtain enough energy, perhaps in order to improve temperature, must adopt beam condensing unit (heat collector) that solar energy is gathered when utilizing solar energy.Distinguish according to the optically focused principle, beam condensing unit can be divided into reflecting condensation and refraction optically focused two big classes substantially, and the difference according to concentrator in each class can be divided into some kinds again.The present invention relates generally to the slot type reflecting and condensing device, for example: the slot-type optical collector in trough type solar power generation system and the slot light collection photovoltaic generating system.Solar concentrator lens with curved surface in the said system adopts glass reflector usually.
At present, solar concentrator lens with curved surface generally is that low iron glass with high permeability is according to the manufacturing of high-precision mould hot bending.Because the required precision height of mould own costs an arm and a leg, and, add processing technology complexity, so the solar concentrator lens with curved surface cost is higher according to the mould hot bending in use because of reasons such as wearing and tearing, long term high temperature need often to change.And solar concentrator lens with curved surface occupies larger proportion in the cost of trough type solar power generation system and slot light collection photovoltaic generating system, have in addition account for totle drilling cost more than 50%.
If the cost of solar concentrator lens with curved surface can decline to a great extent, then will effectively advance the development of solar utilization technique.
Summary of the invention
The objective of the invention is to: at drawbacks such as the required precision height that has the existence of solar concentrator lens with curved surface mould molding now, complex process, cost height, propose a kind of solar concentrator lens with curved surface that need not the high-precision mold moulding, thereby simplified processing process, significantly reduce manufacturing cost.
The applicant finds in experiment, though that low iron glass and so on can be used as the glass of speculum is hard, toughness is very low, and when area greatly the time, the issuable distortion of its limited toughness can reach the curvature of the required speculum of slot light collection photovoltaic generating system.Therefore, to achieve these goals, the applicant has worked out technical solution of the present invention: a kind of solar concentrator lens with curved surface, comprise framework, be installed on the carriage on the framework, the glass reflector that two ends are positioned carriage, comprise that in addition curvature forms device, the end that described curvature forms device contacts the location with glass reflector, and the other end contacts the location with framework or carriage fastening member, described two ends form required curvature with the glass reflector restrained deformation.
The further improvement of above technical scheme is: described carriage has the curved profile or the curved surface of required curvature, and described curvature forms device glass reflector is tied to and described carriage applying, forms required curvature.
During specific implementation, described curve is the combination of parabola, circular arc line or parabola and circular arc line, and described curved surface is the combination of parabola, arc surface or parabolic and arc surface.
Like this, form device and framework or carriage fastening member by curvature, especially have the curved profile of required curvature or the carriage of curved surface, can be by the constraint glass reflector, make it to produce flexural deformation, become solar concentrator lens with curved surface with required curvature and optically focused effectiveness.
Obviously, compared with prior art, the present invention has abandoned the higher mould hot bending technology of cost, adopts simple curvature to form device plane mirror is made required curved surface, processing technology is simplified greatly, cost significantly reduces, and will play positive impetus to the utilization of solar energy.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing and exemplary embodiments.
Fig. 1 is the perspective view of the embodiment of the invention one.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the local enlarged diagram that Fig. 1 embodiment one mean curvature forms device.
Fig. 4 is the local enlarged diagram that the curvature of embodiment two forms device.
The specific embodiment
Embodiment one
The solar concentrator lens with curved surface of present embodiment comprises the support frame 3 of glass reflector 1 and carriage 2 thereof, installation bracket as shown in Figure 1 and Figure 2, also comprises the curvature formation device that glass reflector 1 is constrained to required curved surface.The section bar 7 that carriage 2 is a parabolic shape by two one sides mainly constitutes (this section bar 7 also can replace with and be the sheet material of curve on one side), comprises some other section bars that section bar 7 is fixed together in addition.Curvature forms device and comprises that the lower end of hasp 13 and carriage 2 are connected with one group of hasp 13 of glass reflector 1 perimeter constraint on carriage section bar 7, and the upper end bending is fastened on the upper surface of glass reflector 1.Because glass reflector 1 area is bigger, also form required curvature in order to guarantee its middle part, curvature forms device and also comprises the push-pull mechanism 5 that is installed on the carriage.This mechanism as shown in Figure 3, comprise be adhered to glass reflector 1 back side contain welding be connected bolt 8 securing member 6 and be installed in nut 9 on the carriage.The push-pull mechanism 5 of present embodiment has six covers, is the back side that dot matrix is distributed in glass reflector 1 respectively, by screwing of screw bolt and nut, the middle part of glass reflector 1 can be constrained on the carriage 2 steadily, guarantees to form required curved surface.
During actual the use, on one side the variation that can observe, measure focal beam spot Yi Bian the nut of turn simultaneously 9 makes screw rod 8 by securing member 6 drive glass reflectors 1 deformation take place, makes the line style hot spot of focusing reach required requirement gradually.Because carriage 2 is curved-surface structure, 5 of push-pull mechanisms in the curvature formation device need be finely tuned the curvature of glass reflector 1 and can accurately be formed required curved surface.
Above curvature forms device can have a lot of other enforcements to change, push-pull mechanism welded nut on carriage 2 for example, and an end of the screw rod 8 that screws with nut closely contacts with the back of glass reflector 1; The bonding securing member in glass reflector 1 back side can be mechanisms such as ball-joint or valve rubber etc.
Embodiment two
The basic structure of present embodiment is identical with embodiment one, and difference is that push-pull mechanism selects pin connected construction for use, as shown in Figure 4, will sell 10 welding and be connected on the securing member 6, and the lock sleeve 11 of band holding screw 12 is connected with carriage 2.During installation, push away or tractive pin 10, drive glass reflector 1 by securing member 6 deformation takes place, produce required curvature, tighten holding screw 12 afterwards and get final product.
In other words, push-pull mechanism comprises that being adhered to the glass reflector back side contains the welding securing member of pin that is connected, and the tractive cover that is installed in band holding screw on the carriage, by securing member and tractive cover and holding screw, glass reflector is constrained on the carriage, form required curved surface.
In addition, in order to prevent glass breakage, enhancement Layers such as flat substrates, fibrous mesh cloth are pasted at described glass reflector 1 back side, and described flat substrates can be glass, metal sheet, aluminium-plastic panel, plastic plate, poly (methyl methacrylate) plate.The manufacture method of glass reflector is more, not only can also can be made of the polylith assembly unit a monoblock flat glass speculum or the glass reflector with certain curvature.
The solar concentrator lens with curved surface structure of present embodiment can be applicable to the cylindricality parabolic condenser in the trough type solar power generation system.Because the parabolic condenser in the trough type solar power generation system is bigger, the opening bore is generally greater than 4 meters, so when adopting mould hot bending technology, the cost of mould itself is very high, processing technology is more complicated also, thereby cost is higher.And present embodiment utilizes glass reflector in the characteristic that is subjected to can producing under the external force effect certain deformation, tractive or pushing by push-pull mechanism, make glass reflector form required curved surface, thereby finish the function of assembling sunshine, abandoned the high large mold of cost, processing technology is simplified, and cost is more economical, helps Industry Promotion and uses.
Claims (8)
1. solar concentrator lens with curved surface, comprise framework, be installed on the carriage on the framework, the glass reflector that two ends are positioned carriage, it is characterized in that: comprise that also curvature forms device, the end that described curvature forms device contacts the location with glass reflector, the other end contacts the location with framework or carriage fastening member, described two ends form required curvature with the glass reflector restrained deformation.
2. solar concentrator lens with curved surface according to claim 1 is characterized in that: described carriage has the curved profile or the curved surface of required curvature, and described curvature forms device glass reflector is tied to and described carriage applying, forms required curvature.
3. solar concentrator lens with curved surface according to claim 1 and 2 is characterized in that: described curve is the combination of parabola, circular arc line or parabola and circular arc line, and described curved surface is the combination of parabola, arc surface or parabolic and arc surface.
4. solar concentrator lens with curved surface according to claim 3 is characterized in that: it is that the lower end and the carriage of described hasp are connected with the hasp of glass reflector perimeter constraint on carriage that described curvature forms device, and the upper end bending is fastened on the upper surface of glass reflector.
5. solar concentrator lens with curved surface according to claim 4, it is characterized in that: described curvature forms device and also comprises the push-pull mechanism that is installed on the carriage, described push-pull mechanism comprises that being adhered to the glass reflector back side contains the securing member that welds the bolt that is connected, and be installed in nut on the carriage, by screwing of screw bolt and nut, glass reflector is constrained on the carriage, form required curved surface.
6. solar concentrator lens with curved surface according to claim 4, it is characterized in that: described curvature forms device and also comprises the push-pull mechanism that is installed on the carriage, described push-pull mechanism comprises that being adhered to the glass reflector back side contains the securing member that welds the pin that is connected, and the tractive cover that is installed in band holding screw on the carriage, by securing member and tractive cover and holding screw, glass reflector is constrained on the carriage, form required curved surface.
7. solar concentrator lens with curved surface according to claim 5 is characterized in that: described glass reflector for or have a glass reflector of one or more assembly unit of certain curvature.
8. solar concentrator lens with curved surface according to claim 7 is characterized in that: flat substrates, fibrous mesh cloth enhancement Layer are pasted in the described glass reflector back side, and described flat substrates is a kind of in glass, metal sheet, aluminium-plastic panel, plastic plate, the poly (methyl methacrylate) plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610037849 CN1800745A (en) | 2006-01-18 | 2006-01-18 | Solar concentrator lens with curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610037849 CN1800745A (en) | 2006-01-18 | 2006-01-18 | Solar concentrator lens with curved surface |
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| Publication Number | Publication Date |
|---|---|
| CN1800745A true CN1800745A (en) | 2006-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610037849 Pending CN1800745A (en) | 2006-01-18 | 2006-01-18 | Solar concentrator lens with curved surface |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759765A (en) * | 2011-04-28 | 2012-10-31 | 北京兆阳光热技术有限公司 | Curved mirror reflector and production method thereof |
| CN102778740A (en) * | 2011-05-10 | 2012-11-14 | 北京兆阳光热技术有限公司 | Reflector fixing device |
| CN101836056B (en) * | 2007-10-22 | 2013-01-02 | 罗斯拉根太阳能公司 | Solar energy concentrator |
| CN105241080A (en) * | 2015-10-21 | 2016-01-13 | 中国华能集团清洁能源技术研究院有限公司 | Fresnel type compound paraboloid secondary reflector structure for solar thermal power generation |
| CN106595078A (en) * | 2016-12-20 | 2017-04-26 | 何斌 | Solar-tracking-free panel-concentrating solar heat collector capable of storing heat and method for fixing reflection plate of solar-tracking-free panel-concentrating solar heat collector capable of storing heat |
-
2006
- 2006-01-18 CN CN 200610037849 patent/CN1800745A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836056B (en) * | 2007-10-22 | 2013-01-02 | 罗斯拉根太阳能公司 | Solar energy concentrator |
| CN102759765A (en) * | 2011-04-28 | 2012-10-31 | 北京兆阳光热技术有限公司 | Curved mirror reflector and production method thereof |
| CN102759765B (en) * | 2011-04-28 | 2014-11-05 | 北京兆阳光热技术有限公司 | Curved mirror reflector and production method thereof |
| CN102778740A (en) * | 2011-05-10 | 2012-11-14 | 北京兆阳光热技术有限公司 | Reflector fixing device |
| CN105241080A (en) * | 2015-10-21 | 2016-01-13 | 中国华能集团清洁能源技术研究院有限公司 | Fresnel type compound paraboloid secondary reflector structure for solar thermal power generation |
| CN105241080B (en) * | 2015-10-21 | 2017-06-27 | 中国华能集团清洁能源技术研究院有限公司 | A kind of Fresnel solar energy thermal-power-generating composite parabolic secondary reflection mirror structure |
| CN106595078A (en) * | 2016-12-20 | 2017-04-26 | 何斌 | Solar-tracking-free panel-concentrating solar heat collector capable of storing heat and method for fixing reflection plate of solar-tracking-free panel-concentrating solar heat collector capable of storing heat |
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