Full containment tanks with non-metallic seals for storage of cryogenic media

Abstract

The invention belongs to the technical field of storage of low-temperature liquefied gas medium, and relates to a full-capacity tank with a non-metal sealing layer for storing low-temperature medium. The full-containment tank includes: an inner tank, an outer tank, a suspended ceiling, a thermal insulation layer, and a sealing layer, and the thermal insulation layer includes a suspended ceiling thermal insulation layer on the suspended ceiling plate, a tank wall thermal insulation layer between the inner tank wall and the outer tank wall, and an inner tank bottom The tank bottom insulation layer between the outer tank bottom and the tank wall insulation layer includes a first tank wall insulation layer and a second tank wall insulation layer from the outside to the inside, wherein the first tank wall insulation layer starts from the outer tank The wall continues to the upper surface of the outer tank bottom, forming a local fillet insulation layer at the junction of the outer tank wall and the outer tank bottom. By having good liquid-tightness and air-tightness, the sealing layer of the low-temperature medium can be closed, helping to limit the vaporization speed of the leaked liquid, containing the vaporized steam, and improving the non-metallic sealing layer for storing low-temperature medium of the present invention. safety of full containment tanks.

Description

technical field [0001] The invention relates to the technical field of storage of low-temperature liquefied gas medium, and more particularly relates to a full-capacity tank with a non-metallic sealing layer for storing low-temperature medium. Background technique [0002] With the development of technology and the improvement of design concepts, low-temperature liquefied gas media above -60°C, such as propane, propylene, butane, etc., are more inclined to be stored in metal-walled full-containment tanks. Metal-walled full-containment tanks are superior to single-containment tanks and double-containment tanks in terms of floor space and safety, and are superior to prestressed concrete full-containment tanks in terms of construction period and economy. [0003] For the double-steel-wall full-containment tank structure, when the inner tank containing the low-temperature medium leaks, the outer tank must contain all the low-temperature medium liquid leaked from the inner tank a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a full-containment tank with a non-metallic sealing layer for storing low-temperature medium, and solve the problem of poor safety and controllability of the leakage condition existing in the existing double-steel-wall full-containment tank with a simple and economical design

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