Selective coating for absorbing solar light and heat

A technology that absorbs coatings and solar energy, applied in solar thermal power generation, solar thermal devices, coatings, etc., can solve problems such as non-appearance, and achieve the effects of enhancing fastness of fixing, preventing reflection, and enhancing absorption rate

Inactive Publication Date: 2010-07-07
SHENZHEN PROSUNPRO SOLAR ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far there is no technical solution that can overcome the above shortcomings in the industry

Method used

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  • Selective coating for absorbing solar light and heat
  • Selective coating for absorbing solar light and heat

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Embodiment Construction

[0013] The present invention is described in detail below:

[0014] The present invention is an improvement aimed at the coating process of the heat collecting chip material used in the existing flat-plate solar heat collectors. The commonly used heat collecting chips are generally thin copper plates or aluminum plates. Therefore, the solar energy selection in the present invention The absorbent coating is a technical improvement made with the above two commonly used material substrates. The coating is composed of multiple layers of metal and non-metal, and the above-mentioned selective solar coating is attached to a metal plate, which is a thin copper plate or an aluminum plate. Such as figure 1 As shown, the order in which the coating adheres to the metal plate 5 is metal bottom layer 4-aluminum nitride composite layer 3-aluminum nitride composite layer 2-aluminum trioxide 1, according to different metal characteristics, in this The metal bottom layer 4 in the invention is...

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Abstract

The invention discloses a selective coating for absorbing solar light and heat which belongs to field of solar energy equipment, particularly, relates to a selective absorbing coating which is used on the surface of the flat-plate solar collector and is used for absorbing and utilizing solar energy. The selective coating for absorbing solar light and heat is formed by compounding a plurality of layers of metal and non-metal, the selective solar energy is attached on a metal flat plate; the characteristics are as follows: the attachment sequence of the coating on the metal flat plate is as follows: a bottom layer-aluminum nitride composite layer-aluminum nitride composite layer- aluminum oxide (wherein, after the second layer of aluminum reacts with N2, whether new aluminum nitride composite material is generated). The invention provides a selective absorbing film with excellent selective absorption characteristic of solar energy and firm film, which is provided with high binding strength, good weatherability, as well as high production efficiency in production.

Description

【Technical field】 [0001] The invention belongs to the field of solar energy equipment, and in particular relates to a selective absorbing coating used on the surface of a flat solar heat collector for absorbing and utilizing solar energy. 【Background technique】 [0002] Solar water heaters absorb the sun's radiant heat. It is the most mature and advanced product in my country's solar thermal utilization. Provide the people with new water heater products that are environmentally friendly, safe, energy-saving and hygienic. There are three most common types of solar water heaters: sun-dried solar water heaters, flat-plate solar water heaters and vacuum tube solar water heaters. The heat collector and the water tank of the sun-dried solar water heater are integrated into one. The structure is simple and the price is low. However, the insulation is poor, so it cannot be used overnight, let alone in winter. The flat-plate solar water heater is composed of a flat-plate solar c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/48B32B15/04C23C14/34
CPCY02E10/40F24J2/485F24S70/20
Inventor 丘仁政陈汉文罗宾
Owner SHENZHEN PROSUNPRO SOLAR ENERGY
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