Solar heat collector panel

Abstract

A solar heat collector panel unit, comprising a heat collecting plate, a heat medium pipe, and a transparent insulator which are formed integrally with each other. The heat collecting plate is coated with an MOxNy (Ti or Al is substituted for M) selective absorbing film. The transparent insulator is a silica aero-gel. Since the heat collecting plate is buried in the transparent insulator, the strength of the transparent insulator is increased. Accordingly, the transparent insulator such as the silica aero- gel can be used as the insulator of the solar heat collector panel unit, and the selective absorbing film, the heat collecting plate, and the heat medium pipe can be sealed without clearance. As a result, the convection of air does not occur, excellent insulation performance can be provided, and the panel can be reduced in weight and simplified in structure. Also, since the solar heat collector panel unit comprises a connector and is connected to an adjacent unit through the connector, the unit can be formed in a specified shape and/or size. The projected shape thereof is a regular polygon. When the units are connected to each other, the shape and/or size thereof can be set freely, and the units can be formed not only in a plan shape but also in a three-dimensional curved shape by improving the material and shape of the connector.

Description

technical field [0001] The invention relates to a solar heat collecting plate (flat solar heat collecting device). Background technique [0002] With increasing concerns over environmental issues and energy issues, the demand for solar thermal panels is increasing. [0003] The known solar heat collecting panels are mainly flat plate type and vacuum tube type, and the flat plate type which is simple in structure and easy to reduce cost is developing into the mainstream of solar heat collecting plate. [0004] The flat plate type requires high-performance heat insulation compared with the vacuum tube type because the heat loss due to convection and conduction is large. As a conventional flat-type heat insulation method, double glass is used for the lighting part, but this structure is heavy and requires a high-strength cabinet. [0005] Various studies have been made to improve the heat collection efficiency of flat-plate solar heat collecting panels, and are disclosed in J...

AI Technical Summary

Problems solved by technology

[0010] The above-mentioned Japanese Patent Laying-Open No. 9-217961 and Japanese Patent Laid-Open No. 2002-130835 disclose that the existing solar heat collecting panels usually have a surface area of ​​several m 2 The flat shape, so the setting shape and setting place are limited

[0011] In addition, as in the heat collector described in Japanese Patent Laid-Open No. 9-217961, for the structure in which the heat collecting plate is cove

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