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Selective composite coating for absorbing solar light and thermal

A composite coating and solar energy technology, which is applied in solar thermal power generation, solar thermal devices, coatings, etc., can solve problems such as non-appearance, and achieve the effects of enhancing fixation fastness, enhancing absorption rate, and reducing thermal emissivity

Inactive Publication Date: 2010-07-07
SHENZHEN PROSUNPRO SOLAR ENERGY
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  • Summary
  • 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 composite coating for absorbing solar light and thermal
  • Selective composite coating for absorbing solar light and thermal

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Embodiment Construction

[0011] The present invention is described in detail below:

[0012] The present invention is an improvement made to the heat collecting sheets used in the existing flat solar heat collectors. The heat collecting sheets commonly used now are generally thin copper plates or aluminum plates. Therefore, the solar selective absorbing coating in the present invention It 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 energy is attached to a metal plate, and this metal plate is a thin copper plate or an aluminum plate. The order of adhesion of the coating on the metal plate is bottom layer-titanium-oxygen-titanium absorption layer. According to different metal properties, the bottom layer in the present invention is one of stainless steel, molybdenum or nickel. The use of these materials as a composite film layer, that is, the solar selecti...

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Abstract

The invention discloses a selective composite coating for absorbing solar light and thermal 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 composite coating for absorbing solar light and thermal 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, a titanium-oxygen-titanium absorbing layer, and a silica emitting layer, wherein, the titanium-oxygen-titanium absorbing layer is made through at least two reactive sputtering processes. 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
CPCY02E10/40F24J2/485F24S70/20F24S70/225
Inventor 丘仁政陈汉文罗宾
Owner SHENZHEN PROSUNPRO SOLAR ENERGY
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