Liquid nitrogen tanks, according to the classification of liquid nitrogen status, can be divided into liquid-phase liquid nitrogen tanks and gas-phase liquid nitrogen tanks;
Biological samples in liquid-phase liquid nitrogen tanks are stored under the surface of liquid nitrogen, and the samples are immersed in liquid nitrogen.
Biological samples in gas-phase liquid nitrogen tanks are stored in a nitrogen atmosphere in the liquid nitrogen temperature zone without direct immersion.
The gas-phase liquid nitrogen tank is made of stainless steel, which has the advantages of corrosion resistance, low temperature resistance, high strength, and high load-bearing. It uses high vacuum insulation technology to reduce the evaporation rate of liquid nitrogen and maintain stable pressure in the tank.