First of all, the outer liner, that is, the shell we see, mainly protects the liner. There is a vacuum layer between the inner container and the outer container, and adding heat insulation material can prevent liquid nitrogen from evaporating too fast.
Secondly, the inner container is made of high-strength aluminum alloy, which is durable and used to hold liquid nitrogen and biological samples, and its tolerance can reach-196℃;
Thirdly, the neck tube, which is mainly used to connect the inner bladder and the outer bladder, is made of special glass fiber reinforced plastic, which can control the external temperature to a minimum and has a certain load-bearing function.
Fourthly, the suction nozzle, also known as the vacuum nozzle, is mainly used to pump out the air in the tank to form a vacuum state, thus maintaining a high vacuum for a long time. It is a very important part, so don't move under normal circumstances;
It is these elements that make up the liquid nitrogen tank, which makes it indispensable.
Source? Henan Tianchi liquid nitrogen storage tank