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Selective absorbing composite membrane coated absorber plate core of solar energy

A technology of solar heat absorbing panels and heat absorbing panel cores, which are applied in the directions of solar thermal energy, solar thermal collectors using working fluid, solar thermal power generation, etc., can solve the problems of easy failure of heat absorbing films, low production cost, etc. The effect of heat collection performance and weather resistance, low production cost, and easy implementation

Inactive Publication Date: 2007-07-25
罗赞继 +1
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Problems solved by technology

[0004] On the heat-absorbing surface of the heat-absorbing metal plate, a selective absorbing coating with an optical protective film—the heat-absorbing film is used, which not only solves the problem that the heat-absorbing film is prone to failure in a non-vacuum atmospheric environment, but also has excellent Excellent heat collection performance and weather resistance, easy to implement and low production cost

Method used

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  • Selective absorbing composite membrane coated absorber plate core of solar energy

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Embodiment Construction

[0018] Further explain in detail in conjunction with accompanying drawings;

[0019] As shown in Figure 1, the structure of the heat-absorbing plate core 5 is that the metal tube 1 of the heat-transfer working medium channel is firmly connected with the heat-absorbing metal plate 2, and the heat-absorbing surface of the heat-absorbing metal plate 2 has a heat-absorbing film 3 , the film is a selective absorption coating, which is an aluminum-nitride aluminum (Al-N / Al) composite coating coated on the heat-absorbing surface of the heat-absorbing metal plate 2 by magnetron sputtering, or aluminum-stainless steel - Copper (A-ss / Cu) composite coating; the heat absorbing film 3 has a protective film 4, which is coated on the surface of the heat absorbing film 3 with high light transmittance, high weather resistance, and can The heat-absorbing film 3 is an optical protective film that is completely isolated from the outside world.

[0020] The solar absorptivity of the aluminum-nitr...

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Abstract

The present invention relates to a solar heat-absorbing plate core coated with selective absorption composite film and its preparation method. The basic structure composition of solar heat-absorbing plate core is characterized by that the selective absorption coating-heat-absorbing film coated on the heat-absorbing surface of heat-absorbing metal plate by adopting magnetic control sputtering process is aluminum-nitrogen aluminum (Al-N / Al) composite coating or aluminum-stainless steel-copper (A-ss / Cu) composite coating; and on the heat-absorbing film an optical protective film is coated, said optical protective film has high light transmittance and high weatherability.

Description

technical field [0001] The invention belongs to the field of solar energy utilization devices, and relates to a solar heat absorbing plate core coated with a selective absorption composite film and a manufacturing method thereof. Background technique [0002] The solar heat absorbing plate core is the core component of the solar flat plate collector, which plays a dual role of absorbing solar radiation energy and transferring heat to the heat transfer medium of the heat collector. It is mainly composed of heat absorbing metal plates and supporting heat transfer tools In order to improve the performance of absorbing solar radiation energy—that is, heat absorption, the heat absorption surface of the heat absorption metal plate is coated with an absorption coating—that is, a heat absorption film, but it is necessary to reduce the heat of the heat absorption metal plate. Radiation, in order to reduce heat loss, therefore, it is necessary to use a selective absorbing coating. Av...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/24F24J2/48C23C14/35C23C14/14F24S10/70
CPCF24J2/26Y02E10/44F24J2/487F24S10/75F24S70/225F24S70/25
Inventor 罗赞继于学德程翠英
Owner 罗赞继
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