CN202975378U - Reflector having anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation - Google Patents
Reflector having anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation Download PDFInfo
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- CN202975378U CN202975378U CN2012204879565U CN201220487956U CN202975378U CN 202975378 U CN202975378 U CN 202975378U CN 2012204879565 U CN2012204879565 U CN 2012204879565U CN 201220487956 U CN201220487956 U CN 201220487956U CN 202975378 U CN202975378 U CN 202975378U
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- film coating
- reflector
- sio2
- layer
- solar energy
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Abstract
The utility model discloses a reflector having an anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation, which belongs to the solar energy use technical field. The reflector sequentially comprises a 4-millimeter glass substrate, a gummed layer, a 1.1-millimeter silver-coated glass and the anti-reflection film coating layer. Anti-reflection films can be a single silicon dioxide (SiO2) or titanium dioxide (TiO2) layer or double layers of SiO2/TiO2 or TiO2/SiO2, or multi-layer compound films of SiO2/TiO2/SiO2. A hard protective layer is 100nm-500nm thick. The solar reflector with a four-layer structure has the advantages of high solar reflectivity, good environment-resistant (resistant to corrosions due to sea water, moisture, acid and base) stability, high hardness and prolonged service lifetime. The reflector can be widely used in solar thermal power generation devices.
Description
Technical field:
The utility model belongs to technical field of solar utilization technique, relates to a kind of solar energy thermal-power-generating reflection part, particularly a kind of solar energy thermal-power-generating special solar catoptron with the antireflective film coating structure.
Background technology:
Along with the industrialized rhythm of new industry is accelerated day by day, entire society continues to increase the demand of the fossil energies such as oil, rock gas, coal, cause tellurian resource day by day exhausted, add Fukushima, Japan nuclear leakage event in 2011 and caused the deep thought of people to the new forms of energy strategy, sun power as " the additional energy of being badly in need of in the recent period " and " basis of future source of energy structure ", has boundless development prospect by contrast.As a kind of clean energy resource that carries out extensive generating of concentrating, solar light-heat power-generation (CSP:Concentrating Solar Power) has started one new research and development and construction upsurge in the world.The CSP system first utilizes catoptron to converge sunshine, and the dielectric heating in heat receiver to design temperature, and then is converted into electric energy by mechanical energy.Solar light-heat power-generation has the advantages such as generating efficiency is high, power large, occupation of land is little for solar energy power generating.
At present the solar light-heat power-generation technology is different according to the light acquisition mode, can be divided into slot type, tower, dish formula, Fresnel solar-thermal generating system.As the critical component of two-dimensional linear Fresnel solar energy thermal-power-generating, the solar energy thermal-power-generating Special reflecting mirror has glass reflector, metallic mirror etc. both at home and abroad.Because can there be light reflection in the difference due to refractive index on different interfaces in optical system, thereby cause the loss of optically focused energy, this greatly reduces the efficient of two-dimensional linear Fresnel solar heat power generation system.Present this catoptron is all less than apply the anti-reflection coating on the surface, existing non-special-purpose anti-reflection coating can not reduce sun reflection of light effectively simultaneously, and have the problems such as hardness is inadequate, have a strong impact on photo-thermal efficient and the serviceable life of whole solar energy thermal-power-generating device.
The utility model content:
The purpose of this utility model is take existing two-dimentional Fresnel solar energy reflection mirror structure as the basis, a kind of two-dimensional linear Fresnel solar energy thermal-power-generating Special reflecting mirror of tool antireflective film coating is provided, to increase existing solar energy reflection mirror to the reflectivity of sunshine, improve simultaneously anti-environment (corrosion such as sea water resistance, humidity, soda acid) stability, hardness and serviceable life.
The two-dimensional linear Fresnel sun power Special reflecting mirror of a kind of tool antireflective film of the utility model coating, comprise 4mm glass substrate, cementing layer and 1.1mm silver mirror glass, between glass substrate and silver mirror glass, with the cementing layer bonding, described silver mirror glass surface also is coated with the antireflective film coating.
Described antireflective film coating is individual layer silicon dioxide or coating of titanium dioxide.
Described antireflective film coating is SiO
2/ TiO
2Or TiO
2/ SiO
2Duplicature.
Described antireflective film coating is SiO
2/ TiO
2/ SiO
2Multilayer complex films.
The thickness of antireflective film coating is 100-500nm.
Adopt above design, the utility model order has been made of the two-dimensional linear Fresnel sun power Special reflecting mirror of four-layer structure 4mm glass substrate, cementing layer, 1.1mm silver mirror glass and antireflective film coating, increase one deck anti-reflection coating in mirror surface, not only has high sunshine reflectivity, and anti-environment (corrosion such as sea water resistance, humidity, soda acid) good stability, hardness is high, thereby extends the serviceable life of solar energy reflection mirror, can be widely used in the solar energy thermal-power-generating device.The sol-gel process that wherein proposes is synthesized colloidal sol, and the nano-porous film that the recycling high speed spin coating process prepares has the advantages such as refractive index is controlled, preparation cost is low, preparation technology is simple.
Description of drawings:
Fig. 1 is the solar energy reflection mirror structural representation of the utility model tool anti-reflection coating.
Embodiment:
Shown in Figure 1, solar energy reflection mirror of the present utility model, order is comprised of 4mm glass substrate 1, cementing layer 2,1.1mm silver mirror glass 3 and antireflective film coating 4.Between glass substrate 1 and silver mirror glass 3, by cementing layer 2 bondings, antireflective film coating 4 is coated on silver mirror glass 3 mirror surface with the sol-gel process high-speed rotary.
The utility model is in existing two-dimentional Fresnel solar energy reflection mirror preparation technology, increases one deck anti-reflection coating in mirror surface.The antireflective film coating can be the silicon dioxide (SiO of individual layer
2) or titania (TiO
2), can be also SiO
2/ TiO
2Or TiO
2/ SiO
2Duplicature can also be SiO
2/ TiO
2/ SiO
2Multilayer complex films.Because the refractive index of antireflective film coating can be regulated continuously, thereby effectively reduce the refractive index of bulk material, make it have very high sunshine reflectivity, simultaneously suitable thermal treatment can make again the group of Si-OH(in coating or Ti-OH) aggregate into Si-O-Si (perhaps cross-linked network structure of Ti-O-Ti), thereby make its anti-environment (corrosion such as sea water resistance, humidity, soda acid) good stability, hardness is high, adopt composite membrane can further improve the anti-environmental stability of solar energy reflection mirror, and reduce sunshine at the reflectivity of minute surface.
The method for preparing this antireflective film coating 4 can adopt sol-gel process, and the key reaction raw material is Si (OC
2H
5)
4Or Ti (OC
2H
5)
4, solvent, catalyzer by adding suitable proportioning react 4h under 30 ~ 40 ℃, more at room temperature ageing 5 ~ 20 days, finally prepare SiO
2And/or TiO
2Colloidal sol.Adopt high speed spin coating process with the nanoporous SiO for preparing
2And/or TiO
2Be coated to silver mirror glass 3 minute surfaces, the coating that spin coating obtains is standing 1h in clean, dry room temperature environment first, again at 50 ~ 70 ℃ of lower pre-service 30min, at last at 100 ~ 150 ℃ of lower thermal treatment 4h, finally obtain having the antireflective film coating (refractive index is 1.13 ~ 1.40(300-2500nm place)) two-dimentional Fresnel solar energy reflection mirror, the thickness of antireflective film coating is 100-500nm.
Claims (5)
1. the two-dimensional linear Fresnel solar energy thermal-power-generating Special reflecting mirror of a tool antireflective film coating, comprise 4mm glass substrate, cementing layer and 1.1mm silver mirror glass, bond with cementing layer between glass substrate and silver mirror glass, it is characterized in that, described silver mirror glass surface also is coated with the antireflective film coating.
2. solar energy thermal-power-generating Special reflecting mirror according to claim 1, is characterized in that, described antireflective film coating is individual layer silicon dioxide or coating of titanium dioxide.
3. solar energy thermal-power-generating Special reflecting mirror according to claim 1, is characterized in that, described antireflective film coating is SiO
2/ TiO
2Or TiO
2/ SiO
2Duplicature.
4. solar energy thermal-power-generating Special reflecting mirror according to claim 1, is characterized in that, described antireflective film coating is SiO
2/ TiO
2/ SiO
2Multilayer complex films.
5. according to claim 1 and 2 or 3 or 4 described solar energy thermal-power-generating Special reflecting mirrors, is characterized in that, the thickness of antireflective film coating is 100-500nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204879565U CN202975378U (en) | 2012-09-21 | 2012-09-21 | Reflector having anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204879565U CN202975378U (en) | 2012-09-21 | 2012-09-21 | Reflector having anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202975378U true CN202975378U (en) | 2013-06-05 |
Family
ID=48516436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204879565U Expired - Lifetime CN202975378U (en) | 2012-09-21 | 2012-09-21 | Reflector having anti-reflection film coating layer and specialized for two-dimension linear Fresnel type solar thermal power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202975378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543483A (en) * | 2013-11-08 | 2014-01-29 | 中盈长江国际新能源投资有限公司 | Flexible reflector film of sunlight reflector |
-
2012
- 2012-09-21 CN CN2012204879565U patent/CN202975378U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543483A (en) * | 2013-11-08 | 2014-01-29 | 中盈长江国际新能源投资有限公司 | Flexible reflector film of sunlight reflector |
| CN103543483B (en) * | 2013-11-08 | 2016-01-20 | 中盈长江国际新能源投资有限公司 | The flexible mirror film of solar light reflecting mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |