The working principle of liquid nitrogen storage tank is to liquefy nitrogen and store it in the inner tank.
The liquid nitrogen storage tank consists of an outer tank body, an inner tank body, an insulation layer, a liquid level gauge, a pressure gauge and a safety valve.
The liquid nitrogen storage tank is a double-layer fixed vacuum powder insulated storage tank. The inner tank is made of stainless steel, and the outer tank is made of Q235B or Q345R.
For most products, long-term storage in the refrigerator leads to product quality degradation, but for example, fruits such as bananas and oranges can be stored at 0℃ for several days, -30℃ for 1 week, and -50℃ for 2 months.
