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Solar reflective condensation panel

A technology for reflecting concentrators and the sun, applied in the field of solar concentrators, can solve the problems of large thermal expansion and contraction, short service life, low reflective efficiency, etc., and achieve high fatigue resistance, long service life, good reflection rate effect

Inactive Publication Date: 2015-07-08
斯特林威索AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the solar reflective panels in the prior art that are greatly affected by thermal expansion and contraction, short service life, and low reflection efficiency, the present invention provides a solar reflective concentrator panel that expands with heat and shrinks with cold, has a long service life and high reflectivity

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1, such as figure 1 with figure 2 A kind of solar reflection concentrating panel shown, comprises composite panel 1, and described composite panel is a parabolic panel, has good light-gathering effect, and composite panel comprises 3 layers of composite layers 2, and is set between adjacent two layers of composite layers. Metal mesh 3 is arranged, and the sunken surface of composite plate is provided with light-reflecting layer 4, and the outer surface of light-reflecting layer is provided with protective film 5, and the light-reflecting layer in the present embodiment is aluminum thin film, and thickness is 30nm, and protective film is TiO 2 film, the thickness of the protective film is 20nm, the composite layer 2 is made of the following components in mass percentage: resin 20%, glass fiber 50%, carbon fiber 30%, the thickness of the composite layer is 2.0mm, and the resin adopts acid value in 70~75mgKOH / g, carboxyl-terminated polyester resin with a softenin...

Embodiment 2

[0021] Embodiment 2: as figure 1 with image 3 A solar reflective concentrating panel shown includes a composite panel 1, the composite panel is a parabolic panel, the composite panel includes 4 composite layers 2, and a metal mesh 3 is arranged between adjacent two composite layers, and the composite panel The sunken surface of the is provided with reflective layer 4, and the thickness of composite layer is 1.5mm, and the outer surface of reflective layer is provided with protective film 5, and the reflective layer in the present embodiment is aluminum thin film, and thickness is 40nm, and protective film is TiO 2 Thin film, the thickness of the protective film is 10nm, the composite layer 2 is made of the following components in mass percentage: resin 25%, glass fiber 55%, carbon fiber 20%, resin with an acid value of 70-75mgKOH / g, softening point It is a carboxyl-terminated polyester resin at 85~95°C. Both carbon fiber and glass fiber in this kind of composite board have ...

Embodiment 3

[0022] Example 3, such as figure 1 with Figure 4 A solar reflective concentrating panel shown includes a composite panel 1, the composite panel is a parabolic panel, the composite panel includes five composite layers 2, and a metal mesh 3 is arranged between adjacent two composite layers, and the composite panel The sunken surface of the is provided with reflective layer 4, and the thickness of composite layer is 1.2mm, and the outer surface of reflective layer is provided with protective film 5, and the reflective layer in the present embodiment is aluminum thin film, and thickness is 50nm, and protective film is TiO 2film, the thickness of the protective film is 5nm, and the composite layer 2 is made of the following components in mass percentage: 30% resin, 60% glass fiber, and 10% carbon fiber. Since there are 4 layers of metal mesh in the composite plate, the metal mesh To set the shape and increase the connection strength, so the content of carbon fiber can be slightly...

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Abstract

The invention discloses a solar reflective condensation panel. The solar reflective condensation panel comprises a composite panel which is a paraboloid panel, wherein the composite panel comprises a plurality of composite layers, a metal net is arranged between each two adjacent composite layers, the concave surface of the composite panel is provided with a reflective layer of which the outer side face is provided with a protective film, each composite layer is made of the following components in percentage by mass: 20-30 percent of resin, 50-60 percent of glass fiber and 10-30 percent of carbon fiber, the sum of the percentages of all the components is 100 percent, the reflective layer is 30-50nm thick and is an aluminium film, and the protective film is 5-20nm thick and is a TiO2 film. Therefore, the solar reflective condensation panel has the following beneficial effects that the composite panel is not likely to expand and contract due to temperatures, the tensile resistance and the fatigue resistance are high, the weight is light, and the service life is long; the surface of the solar reflective condensation panel has self-cleaning decontamination and antifogging performances, so that the good reflectivity is kept.

Description

technical field [0001] The invention relates to the technical field of solar energy concentrating, in particular to a solar reflective concentrating panel. Background technique [0002] At present, with the energy crisis, solar energy is more and more widely valued and utilized. For example, the Stirling heat engine also gathers energy through the solar reflector concentrator to heat the hot end of the cylinder of the Stirling heat engine. The solar reflector concentrator has an overall shape of Bowl-shaped, with many arc-shaped reflectors attached to the inner surface, there is a metal plate on the back of the reflector, and the metal plate is used to increase the strength of the reflector. In order to collect more solar energy, the general solar collector is very large. The inner surface area is also very large, but the temperature difference between day and day is very large. In order to consider thermal expansion and cold contraction, the area of ​​each solar reflector i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08G02B1/14
Inventor 万斌
Owner 斯特林威索AB
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