Various material composite fire retardant -type high vacuum multiple layer heat insulation structure

Abstract

The invention relates to an inflaming retarding type high vacuum multilayer heat insulation structure combined with multiple materials, which belongs to the cryogenic engineering and cryogenic technical field. The invention comprises a high temperature side combination, a transition combination and a low temperature side combination, wherein the high temperature side combination adopts an alternating combination of the aluminum foil and the glass fiber paper; the transition combination adopts an alternating combination of the double-sided aluminum coated sheet and the glass fiber paper or the aluminum foil and the chemical fiber paper or the double-sided aluminum coated sheet and the chemical fiber paper; and the low temperature side combination adopts a mixed combination of the aluminum foil, the glass fiber paper and the chemical fiber paper. The insulation structure of the invention is characterized in that the whole structure can retard inflaming without exterior inflaming and the low temperature heat-insulating performance is superior to that of the traditional inflaming retarding type heat insulation structure, thereby decreasing the use of the heat insulating materials, lowering the cost of the heat insulating materials, shortening the intervals of the vacuum interlayers, increasing the inner effective volume of the low temperature vessel when the outside dimensions are the same, and contributing to the light weight and the volume maximization of the mobile low temperature accumulating conveyers.The inflaming retarding type high vacuum multilayer heat insulation structure combined with multiple materials has more obvious economic benefit and social benefit in the cryogenic engineering.

Description

technical field [0001] The invention relates to a high-vacuum heat-insulation structure for low-temperature storage and transportation equipment, in particular to a flame-retardant high-vacuum multi-layer heat-insulation structure composed of multiple materials, which has good low-temperature heat insulation performance and flame retardancy. It belongs to the field of cryogenic engineering and cryogenic technology. Background technique [0002] High-vacuum multi-layer insulation is a commonly used high-efficiency insulation method in low-temperature storage and transportation equipment. Its structural principle is to alternately place high-reflectivity metal films and low-thermal-conductivity spacers in the vacuum jacket, usually using dozens of reflectors. Alternating combination of layers and spacer layers. The vacuum jacket and the multi-layer insulation materials in it form a complete high-vacuum multi-layer insulation structure, which can limit the heat transfer throug...

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Problems solved by technology

None of the patents mentioned the use of multiple different reflective materials and spacers in the same multilayer insulation structure, and the use of differ...

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