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What Are The Characteristics Of The Insulation Of Cryogenic Movable Tank?

Mar. 27, 2019

As a Horizontal Cryogenic Tank Manufacturer, let's talk about the insulation of Cryogenic Movable Tank.

Cryogenic Movable Tanks, which store liquid oxygen, nitrogen, argon, carbon dioxide, etc., are usually composed of inner and outer tanks filled with insulation. The heat insulation layer is an important part of the storage medium of the low temperature storage tank. As the name implies, the insulation layer is mainly used for heat insulation. In addition, it also plays a buffer in the low temperature storage tank and increases the safety performance of the low temperature storage tank. The role.

The heat insulation layer of the low temperature storage tank transmits the hydraulic head to the outer tank body, and has the effect of reducing the gasification amount, reducing the temperature difference between the inner and outer walls of the tank, and reducing the temperature difference stress generated thereby. It is also because of this that the thermal insulation layer is required to have a small thermal conductivity at the time of manufacture and has sufficient strength.

Materials that can satisfy these conditions of the heat insulating layer include rigid foam urethane, foam glass, perlite, and rigid foam phenolic resin. In order to improve the heat insulating performance and economy of the heat insulating material, a heat insulating method in which a heat insulating material such as a powder, a fiber or a plate is mixed may be used, and the heat insulating layer has a function of fixing a "film".

After the liquefied natural gas is injected into the tank of the Cryogenic Movable Tank, the inner tank wall will begin to shrink. Otherwise, after the liquefied natural gas is completely discharged, the temperature inside the tank will gradually rise and the inner tank wall will stretch. The insulation layer acts as a buffer when the inner tank wall expands and contracts, ensuring safe operation of the tank. The repeated expansion and contraction of the inner tank wall becomes strict. Therefore, a layer of highly elastic heat insulation layer must be applied near the inner tank, and the thickness of the heat insulation layer is adapted to the expansion and contraction of the inner tank wall.

The insulation of cryogenic storage tanks plays an important role in providing safety for the use of cryogenic storage tanks.

Cryogenic Movable Tank