Cryogenic Storage Tank

For excessive residual stresses caused by welding, the welding residual stresses should be eliminated after welding. Industrial liquid nitrogen at a very low temperature from nitrogen pressurized into a colorless liquid, then the temperature of liquid nitrogen is very low, and then at room temperature, low temperature storage tanks due to the rise in ambient temperature of the liquid nitrogen contained in the bottle will undergo a phase change, that is, vaporization, from liquid nitrogen into gaseous nitrogen, cylinder pressure rises, the temperature inside this time or liquid nitrogen and gas nitrogen coexistence temperature, generally -196 ℃, absorbing external heat temperature continues to If the temperature continues to rise, the pressure will continue to rise and the pressure relief safety valve will come into play to relieve pressure.