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Novel heat absorption plate with blue film coating and flat-plate collector with the heat absorption plate

A heat-absorbing plate and coating technology, which is applied in the direction of coating, layered products, heating devices, etc., to achieve the effects of reasonable structure setting, reducing thermal resistance and prolonging service life

Inactive Publication Date: 2014-08-13
山东澳华新能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the coating process of selective absorption film layer on the market is processed on the coil material, and there is no precedent for coating on the formed module, and the existing selective absorption film layer has low absorption rate, high reflectivity, Problems such as poor weather resistance affect the development of the solar collector industry

Method used

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  • Novel heat absorption plate with blue film coating and flat-plate collector with the heat absorption plate
  • Novel heat absorption plate with blue film coating and flat-plate collector with the heat absorption plate
  • Novel heat absorption plate with blue film coating and flat-plate collector with the heat absorption plate

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Embodiment Construction

[0026] Preferably, the solar absorption ratio of the blue film coating is above 0.94, and the emissivity is controlled within 0.07.

[0027] Preferably, the material of the metal plate is ultra-pure ferritic stainless steel, of course, stainless steel of other materials can also be selected.

[0028] Specifically, the upper end of the longitudinal connection fluid groove is close to the first transverse fluid groove.

[0029] The arrangement of the U-shaped fluid channel can realize the same course flow of the fluid in the second transverse fluid channel and the fluid in the first transverse fluid channel, that is, the distance that the fluid passes through each longitudinal channel from the inlet to the outlet is equal. This structure can better reduce the resistance in the flow channel, effectively use the flow channel space in the plate core, absorb heat evenly, and maximize the heat collection efficiency.

[0030] A flat plate heat collector includes a transparent cover p...

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Abstract

The invention discloses a novel heat absorption plate with a blue film coating and a flat-plate collector with the heat absorption plate. The novel heat absorption plate with the blue film coating comprises a front stainless metal plate and a rear stainless metal plate which are formed by die pressing, longitudinal fluid grooves are formed in each metal plate through die pressing and are arrayed transversely, a transverse fluid groove connected with the longitudinal fluid groove in series is formed in each of two longitudinal ends of each metal plate through die pressing, the longitudinal fluid grooves and the transverse fluid grooves in each metal plate sunken towards the same side of the metal plate, the two metal plates are welded in a involution mode to form the integrated heat absorption plate, two corresponding longitudinal fluid grooves in the two metal plates make up a longitudinal fluid passage, two corresponding transverse fluid grooves in the two metal plates make up a transverse fluid passage, the blue film coating coats the front surface of the front metal plate through a magnetron sputtering technique, and the blue film coating is composed of a reflecting layer, an absorption layer and an anti-reflection layer from the back to the front.

Description

technical field [0001] The invention relates to the field of solar water heaters, in particular to a novel heat-absorbing plate with a blue film coating, and also to a flat-plate heat collector using the novel heat-absorbing plate. Background technique [0002] The Chinese invention patent with the publication number CN 203148089 U discloses a heat-absorbing plate, which includes two metal plates at the front and the back formed by compression molding. The two metal plates are joined and welded to form an integrated heat-absorbing plate. film layer. At present, the coating process of selective absorption film layer on the market is processed on the coil material, and there is no precedent for coating on the formed module, and the existing selective absorption film layer has low absorption rate, high reflectivity, Problems such as poor weather resistance affect the development of the solar collector industry. Contents of the invention [0003] The technical problem to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/48B32B33/00B32B15/04C23C14/35C23C14/16
CPCY02E10/40
Inventor 陈安祥王娟张瑞瑞
Owner 山东澳华新能源有限公司
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