Fireproof insulating layer for cryogenic storage tank

Abstract

The invention discloses a fireproof insulating layer for a cryogenic storage tank. The fireproof insulating layer for the cryogenic storage tank comprises the cryogenic storage tank, a plurality of prefabricated foam blocks, coating foam, injection molding foam and foam glass, wherein the multiple prefabricated foam blocks are pasted on the surface of the cryogenic storage tank at intervals in the transverse and longitudinal directions through cryogenic adhesive; the first layer of injection molding foam, an anticracking layer, the second layer of injection molding foam and the coating foam are pasted to the portion, between the prefabricated foam blocks, of the surface of the cryogenic storage tank sequentially from inside to outside, and the coating foam is sprayed to the surface layers of the injection molding foam; the foam glass is pasted to the outer surfaces of the prefabricated foam blocks and the outer surface of the coating foam through the cryogenic adhesive; and a stainless steel coating is also pasted to the outer side of the foam glass.

Description

technical field [0001] The invention relates to a tank body heat preservation system, in particular to a fireproof insulating layer of a cryogenic storage tank. Background technique [0002] With the advancement of technology and the improvement of human living standards, the application range of cryogenic liquefied substances such as liquefied natural gas (LNG), liquid nitrogen (LN2), liquid oxygen (LO2), liquid carbon dioxide (LCO2), and liquefied petroleum gas (LPG) has gradually increased. Expansion, especially LNG, consists mainly of methane. LNG is condensed into a liquid by cooling gaseous natural gas at normal pressure to -162°C. The storage and transportation space can be greatly saved after natural gas is liquefied. The volume after liquefaction is about 1 / 600 of the gaseous volume, and it has the characteristics of large calorific value and high performance. LNG is a clean and efficient energy source. As a clean energy source, it is becoming more and more popula...

AI Technical Summary

Problems solved by technology

[0004] However, the main function of the existing insulation layer is still heat preservation. Since the foam is used, if there is a flammable point outside, it is easy to burn, which will cause the internal medium to explode, which is very dangerous.

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