Liquid nitrogen tank is a kind of low temperature biological container, through the physical characteristics of liquid nitrogen low temperature to maintain the internal temperature of the tank constant, so as to store or transport some biological organs, animal sperm, blood samples, tissues, vaccines, viruses, etc. that remain active in the low temperature state.
The liquid nitrogen tank is mainly composed of an inner liner, an outer liner, a neck tube, and a stopper, with a vacuum layer between the inner and outer liner for adiabatic injection. The most important and easily damaged part is the neck tube, which is made of fiberglass and connects the inner and outer walls of the tank and bears the weight of the inner tank.