Grading porous passive type radiation-cooling structure based on bio-plastic and cooling method

Abstract

The invention discloses a grading porous passive type radiation-cooling structure based on bio-plastic and a cooling method. The cooling method comprises the steps that cellulose acetate is dissolvedin acetone, purified water is added after complete dissolution, and a precursor solution is formed; the precursor solution is put into a container, acetone evaporates, the cellulose acetate is separated from water, micropores with varying diameters are formed in the cellulose acetate, and a cooling material layer is formed; the cooling material layer is attached to the surface of a heat transfer material; the cooling material layer is covered with a layer of material plate with high light transmittance, and the layer of the material plate is adopted as a covering layer; a heat insulation cavity body layer is formed between the cooling material layer and the covering layer; and the passive type radiation-cooling structure is formed by the heat transfer material layer, the cooling material layer, the heat insulation cavity body layer and the covering layer, the heat transfer material layer is in contact with cooled bodies, the covering layer is exposed in the outside, and it is guaranteed as much as possible that no shelter exists above and on the periphery of the cooling structure. According to the grading porous passive type radiation-cooling structure, passive type cooling can beprovided for some occasions and equipment, and the structure plays a cooling part.

Description

technical field [0001] The invention relates to the field of cooling, and more specifically relates to a bioplastic-based hierarchical porous passive radiation cooling structure and a cooling method. Background technique [0002] At present, many fields need to cool down, such as construction, military industry, electronics, mechanical equipment, etc. When the outdoor temperature of the building is high, air conditioning is needed to cool down; in the absence of air conditioning, electric fans or water evaporation are used to cool down. In the field of mechanical equipment, the equipment will emit heat after operation, and the temperature will affect the operating efficiency of the equipment to a certain extent, so it must be cooled. [0003] In these occasions where active means cannot be used or for energy saving, the present invention can be used for cooling. Contents of the invention [0004] The purpose of the present invention is to solve the problem of high energy...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high energy consumption of refrigeration or the inability to adopt active refrigeration, and provide a hierarchical porous passive radiation cooling structure and cooling method based on bioplastics for some occasions and equipment, which can be used for some occasions and equipment Provide passive cooling, play the role of cooling

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