With the continuous advancement of science and technology, the functions of liquid nitrogen tanks have become more comprehensive. There are two storage modes: gas-phase liquid nitrogen tanks and liquid-phase liquid nitrogen tanks. However, their working principles and usage methods are slightly different.
Among them, gas-phase liquid nitrogen tanks have the advantages of preventing sample cross-infection, reducing the risk of sample tube explosion, and reducing liquid nitrogen damage. Therefore, most laboratories and scientific research institutions currently prefer to use gas-phase liquid nitrogen tanks for sample storage.
Its working principle is also very simple, which is to store liquid nitrogen in a tank and use the evaporation and cooling of the liquid nitrogen to preserve the sample. At the same time, it also has high vacuum insulation technology to reduce the volatilization rate of liquid nitrogen and keep the pressure inside the tank stable.