CN101762095A - parabolic solar reflecting plate - Google Patents
parabolic solar reflecting plate Download PDFInfo
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- CN101762095A CN101762095A CN200910243910A CN200910243910A CN101762095A CN 101762095 A CN101762095 A CN 101762095A CN 200910243910 A CN200910243910 A CN 200910243910A CN 200910243910 A CN200910243910 A CN 200910243910A CN 101762095 A CN101762095 A CN 101762095A
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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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Abstract
The invention discloses a parabolic solar reflecting plate. The parabolic solar reflecting plate has a lamination structure consisting of a reflector, a glass adhesive and a glass plate. The glass plate has a parabolic section and the parabolic opening is upward; the reflector is arranged above the glass plate and is used for reflecting the sunlight; the structure of the reflector comprises a substrate layer, a reflecting layer, a corrosion prevention layer and a protection layer; and the glass adhesive is a PVB film and is used for adhering the reflector to the glass plate. The parabolic solar reflecting plate provided by the invention has the characteristics of good endurance capability, long service life, simple processing and manufacturing, low cost and strong reliability, and is suitable for large-scale mass production.
Description
Technical field
The invention belongs to the Application of Solar Energy field, be specifically related to a kind of solar energy reflection apparatus.
Technical background
At present, most of solar energy reflection plates are to be basalis with parabolic cross-sections glass, in the one side coating on glass reflecting layer of sunshine dorsad, are coated with plating below the reflecting layer.On the processing technology, if make the glass bending moulding behind the first coating reflecting layer, glass rising owing to temperature in the process of hot bending may destroy the uniformity of rete so, even causes the part rete to come off, and influences the sunshine reflecting effect; If earlier with plated film again after the glass bending moulding, reflecting effect can be quite a lot of, but domestic plated film producer uses existing equipment and technology to be difficult to be coated with certain sagitta, and the parabola shaped glass that area is bigger, thereby the large-scale production and the extensive use of parabolic solar reflecting plate have been limited greatly.In addition, even there is diaphragm that the reflecting layer is protected, if but the rete long term exposure in air, after sag of protecting coating, the reflecting layer still can be oxidized, corrosion etc., thereby influence the reflectivity and the service life of this device.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of tolerance, long service life, and processing and fabricating is simple, low cost, the parabolic solar reflecting plate of good reliability.Described parabolic solar reflecting plate is by speculum, the lamination that glass bonding glue and glass plate are formed, and described parabolic solar reflecting plate is with glass bonding glue speculum and glass plate to be bonded together.The function of every part, composition and preparation method are as follows:
1. bottom one deck away from the sunshine direct projection is a glass plate, what glass plate was selected for use is that thickness is the float glass of 3mm～6mm, after the operations such as flat glass process hot bending tempering, be processed into that intensity is good, cross section curve is specific parabolic type glass plate, the parabola opening makes progress, to guarantee the intensity of whole solar energy reflection apparatus.
2. topmost one deck one deck of directly contacting sunshine is a speculum, and described speculum is followed successively by basalis, reflecting layer, corrosion-resistant coating, protective layer four-layer structure from top to bottom, and the function of every part, composition and preparation method are as follows:
Basalis is that thickness is the plate glass of 0.5mm～3mm, and ultra-clear glasses and float glass all can.This basalis has transmittance preferably to sunshine, and reflectivity is low, and basalis is used for glass plate bonding; The reflecting layer is the coating of good aluminium of reflecting effect or silver, is mainly used to the sunshine of reflected illumination in the reflecting layer; Corrosion-resistant coating is one deck compactness preferred metal protective layer, and for example copper or titanium are mainly and prevent reflecting layer burn into oxidation, diffusion; Protective layer is in order to protect above rete not to be subjected to the erosion of material in the air, improves the weatherability of speculum and is coating 1～2 layer of protective paint (also can not use protective paint under the good situation of air-proof condition) on the corrosion-resistant coating.
3. the intermediate layer is a glass bonding glue, and parabolic solar reflecting plate is with glass bonding glue speculum and glass plate to be bonded together.What glass bonding glue generally adopted is polyvinyl butyral resin, is commonly referred to PVB, is to be formed by vinyl alcohol and butyraldehyde condensation.The PVB film thickness is 0.5～2mm.The glass lamination utilizes among the PVB-in COH base and the glass-combine the formation cohesive force between the SiOH.Glass lamination intensity height, security is good.
The lamination of speculum-glass bonding glue-glass that parabolic solar reflecting plate provided by the present invention adopts, this structure has avoided the reflecting layer directly to be exposed in the air, the reflecting layer has obtained good protection, make whole solar energy reflection plate have good tolerability, prolonged service life; Described parabolic solar reflecting plate has reduced the theoretical curve error, is reduced to ± 5mm by common ± 15mm, has improved the parabolical goodness of fit.And rete is coated with and is plated on the common plate glass, and processing is simple, is easy to install, and cost is low, is fit to produce in batches.
Description of drawings
Fig. 1 is a parabolic solar reflecting plate schematic cross-section of the present invention;
Fig. 2 is the local amplification view that A is ordered among Fig. 1;
Fig. 3 is the local amplification view in mirror layer cross section in the parabolic solar reflecting plate of the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, parabolic solar reflecting plate 1 of the present invention is made up of three parts, comprise speculum 101, glass bonding glue 102 and glass plate 103 three-deckers, glass plate 103 is as supporting construction, processed by common float glass plate, thickness of glass is 3mm～6mm, after the operations such as flat glass process hot bending tempering, be processed into that intensity is good, cross section curve is the parabolic type glass plate, the parabolic curve equation is x
2=7200y, as Fig. 1, the parabola opening makes progress, to guarantee the intensity of whole solar energy reflection apparatus.The paraboloidal focus characteristics that forms by the parabolic type glass plate focuses on reverberation on the paraboloidal focal line 2 simultaneously.
What described glass bonding glue 102 adopted is caking property PVB intermediate coat preferably, with thickness is that the PVB film of 0.75～1.8mm is laid on 103 glass plates uniformly, close after the sheet chamber closes sheet at glass, vacuumize, be positioned at last that exhaust processes through HTHP in the autoclave.The glass lamination that speculum 101, glass bonding glue 102 and glass plate 103 three-deckers are formed, the intensity height, sealing and security are good.
Described speculum 101 is used for reflected sunlight; speculum 101 has the throwing face structure identical with glass plate 103; speculum 101 throw the face structures dorsad sunshine one side from top to bottom, be followed successively by basalis 101a, reflecting layer 101b, corrosion-resistant coating 101c and protective layer 101d four-layer structure.As shown in Figure 3, basalis 101a is dull and stereotyped ultra-clear glasses, and the thickness of glass plate is 0.78mm～1.5mm, and this glass plate has transmittance preferably to sunshine, and reflectivity is low, and basalis is used for glass plate 103 bonding; Reflecting layer 101b is the silver-plated preferably coating of reflecting effect, and what plated film adopted is the mode of vacuum sputtering, and the thickness of coating is 0.1-0.2 μ m, and reflecting layer 101b is mainly used to reflected sunlight; Corrosion-resistant coating 101c is one deck compactness preferred metal protective layer, and generally with copper or titanium, the thickness of this rete is 0.1-0.4 μ m, and corrosion-resistant coating 101c is mainly and prevents reflecting layer 101b burn into oxidation, diffusion; Protective layer 101d is in order to protect above rete, improves the weatherability of speculum and coat 1～2 layer of protective paint on corrosion-resistant coating 101c.
Claims (7)
1. parabolic solar reflecting plate is characterized in that: the lamination that parabolic solar reflecting plate is made up of speculum, glass bonding glue and glass plate, and described speculum is in the same place by the glass bonding glue bond with glass plate; Described glass plate is a parabolic cross-sections, and the parabola opening upwards; Described speculum is above glass plate, and the structure of speculum comprises four layers of basalises, reflecting layer, corrosion-resistant coating, protective layer; Described glass bonding glue is the PVB film.
2. according to right 1 described parabolic solar reflecting plate, it is characterized in that: the basalis of described speculum also is to be the glass plate material, and basalis directly is connected on the undermost glass plate by glass bonding is gluing; Coating reflecting layer on the glass plate of sunshine one side dorsad; Described reflecting layer is the coating of aluminium or silver; Described corrosion-resistant coating is the layer of metal protective layer that plates on the reflecting layer, scribbles protective paint on the coat of metal as protective layer.
3. according to right 1 described parabolic solar reflecting plate, it is characterized in that: the thickness of reflecting layer coating is 0.1-0.2 μ m.
4. according to right 1 described parabolic solar reflecting plate, it is characterized in that: glass plate is as supporting construction, process by common float glass plate, thickness of glass is 3mm～6mm, after the operations such as flat glass process hot bending tempering, be processed into that intensity is good, cross section curve is the parabolic type glass plate, the parabolic curve equation is x
2=7200y.
5. according to right 1 described parabolic solar reflecting plate, it is characterized in that: described glass bonding glue adopts the PVB intermediate coat, with thickness is that the PVB film of 0.75～1.8mm is laid on the glass plate uniformly, close after the sheet chamber closes sheet at glass, vacuumize, be positioned over the exhaust of the interior process of autoclave HTHP at last and process.
6. according to right 1 described parabolic solar reflecting plate, it is characterized in that: described basalis is dull and stereotyped ultra-clear glasses, and the thickness of dull and stereotyped ultra-clear glasses is 0.78mm～1.5mm.
7. according to right 1 described parabolic solar reflecting plate, it is characterized in that: described corrosion-resistant coating is 0.1-0.4 μ m with copper or titanium, the thickness of this rete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243910A CN101762095A (en) | 2009-12-25 | 2009-12-25 | parabolic solar reflecting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243910A CN101762095A (en) | 2009-12-25 | 2009-12-25 | parabolic solar reflecting plate |
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| CN101762095A true CN101762095A (en) | 2010-06-30 |
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| CN200910243910A Pending CN101762095A (en) | 2009-12-25 | 2009-12-25 | parabolic solar reflecting plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515575A (en) * | 2011-12-21 | 2012-06-27 | 珠海华尚汽车玻璃工业有限公司 | Vehicle-use internal-layer heat insulation glass and manufacturing method thereof |
| CN103984049A (en) * | 2014-04-25 | 2014-08-13 | 吴砺 | Solar reflector manufacturing method |
| CN106494053A (en) * | 2016-10-13 | 2017-03-15 | 深圳市策维科技有限公司 | The rubberizing system and method for bend glass |
| CN106646704A (en) * | 2016-11-17 | 2017-05-10 | 天津滨海光热反射技术有限公司 | Parabola ultrathin reflector and preparation method thereof |
-
2009
- 2009-12-25 CN CN200910243910A patent/CN101762095A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515575A (en) * | 2011-12-21 | 2012-06-27 | 珠海华尚汽车玻璃工业有限公司 | Vehicle-use internal-layer heat insulation glass and manufacturing method thereof |
| CN102515575B (en) * | 2011-12-21 | 2014-11-12 | 珠海华尚汽车玻璃工业有限公司 | Vehicle-use internal-layer heat insulation glass and manufacturing method thereof |
| CN103984049A (en) * | 2014-04-25 | 2014-08-13 | 吴砺 | Solar reflector manufacturing method |
| CN106494053A (en) * | 2016-10-13 | 2017-03-15 | 深圳市策维科技有限公司 | The rubberizing system and method for bend glass |
| CN106646704A (en) * | 2016-11-17 | 2017-05-10 | 天津滨海光热反射技术有限公司 | Parabola ultrathin reflector and preparation method thereof |
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Open date: 20100630 |