Product Category
Standard operation of liquid nitrogen storage tank
Date: Aug 26, 2020
Liquid nitrogen tanks can generally be divided into two types: liquid nitrogen storage tanks and liquid nitrogen transportation tanks. The storage tanks are mainly used for the static storage of indoor liquid nitrogen and are not suitable for long-distance transportation under working conditions.
1. Due to the large heat of the liquid nitrogen tank, the heat balance time is longer when filling liquid nitrogen at a time. It can be pre-cooled with a small amount of liquid nitrogen (about 60L) and then filled slowly (so that it is not easy to form an ice block) .
2. In order to reduce the loss when filling liquid nitrogen in the future, please refill liquid nitrogen when there is a small amount of liquid nitrogen in the liquid nitrogen tank. Or fill liquid nitrogen within 48 hours after using up liquid nitrogen. 
3. To ensure the safety and reliability of the liquid nitrogen tank, the liquid nitrogen tank can only be filled with liquid nitrogen, liquid oxygen, and liquid argon.
4. During the infusion, the surface of the liquid nitrogen tank is frozen and frosted, which is normal. When the pressure increase valve of the liquid nitrogen storage tank is opened for pressure increase, because the pressure increase coil is connected to the outside of the liquid nitrogen tank. The inner walls of the cylinder are stuck together. When the liquid nitrogen is passed through the liquid nitrogen tank coil, it absorbs the heat of the outer cylinder to vaporize to achieve the purpose of boosting the pressure. There may be spotted frost outside the liquid nitrogen storage tank. After the booster valve of the nitrogen tank, the frost point will slowly dissipate. When the booster valve of the liquid nitrogen tank is closed and the infusion work is not performed, the surface of the liquid nitrogen tank is free of ice or frost, which also shows that the liquid The vacuum of the nitrogen storage tank may have been destroyed, and the liquid nitrogen tank can no longer be used. You should find the liquid nitrogen storage tank manufacturer to repair and scrap it.
1. Due to the large heat of the liquid nitrogen tank, the heat balance time is longer when filling liquid nitrogen at a time. It can be pre-cooled with a small amount of liquid nitrogen (about 60L) and then filled slowly (so that it is not easy to form an ice block) .
2. In order to reduce the loss when filling liquid nitrogen in the future, please refill liquid nitrogen when there is a small amount of liquid nitrogen in the liquid nitrogen tank. Or fill liquid nitrogen within 48 hours after using up liquid nitrogen.
4. During the infusion, the surface of the liquid nitrogen tank is frozen and frosted, which is normal. When the pressure increase valve of the liquid nitrogen storage tank is opened for pressure increase, because the pressure increase coil is connected to the outside of the liquid nitrogen tank. The inner walls of the cylinder are stuck together. When the liquid nitrogen is passed through the liquid nitrogen tank coil, it absorbs the heat of the outer cylinder to vaporize to achieve the purpose of boosting the pressure. There may be spotted frost outside the liquid nitrogen storage tank. After the booster valve of the nitrogen tank, the frost point will slowly dissipate. When the booster valve of the liquid nitrogen tank is closed and the infusion work is not performed, the surface of the liquid nitrogen tank is free of ice or frost, which also shows that the liquid The vacuum of the nitrogen storage tank may have been destroyed, and the liquid nitrogen tank can no longer be used. You should find the liquid nitrogen storage tank manufacturer to repair and scrap it.
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