Multi-layer insulation LOx LAr LN2 Cryogenic gas tank
Tanks generally used for the storage of deep cold liquids are made by wrapping multiple layers of insulating material around the inner liner of the container, which is then bonded, strapped and covered with an outer liner.
The multi-layer insulation material is usually composed of reflective screen and spacer. The reflective screen may be made of aluminium, copper or other materials such as aluminium foil or aluminised polyester film, while the spacer is made of low-temperature insulating paper such as glass fibre paper, chemical fibre paper, vegetable fibre paper or the like. Chinese patent CN101058209 discloses a vacuum multi-layer winding adiabatic structure of low-temperature adiabatic paper used for deep-cold liquid storage and transportation containers and ancillary pipelines, composite the low-temperature adiabatic paper with 0.006_aluminium foil, and then wind the composite material on the inner liner cylinder, set it into the outer liner after bonding and binding, and then pump the vacuum into the outer liner after it has been sealed to _4Pa.
