How to safely use liquid nitrogen tanks

1. Due to the large heat of the liquid nitrogen tank , the first time the liquid is filled with nitrogen, the heat balance time is longer, and it can be pre-cooled with a small amount of liquid nitrogen medium (about 60L), and then it is full of fullness (if it is not easy to form) Ice block).

2. In order to avoid the consumption of liquid nitrogen in the future, please refill the liquid nitrogen when there is a small amount of liquid nitrogen in the liquid nitrogen tank. Or fill the liquid within 48 hours after using the liquid nitrogen.

3. In order to ensure the safety and reliability of the use of liquid nitrogen tanks, liquid nitrogen tanks can only be filled with liquid nitrogen, liquid oxygen and liquid argon.

4. When infusion, water and frost on the outside of the liquid nitrogen tank are normal signs. When the pressure increase valve of the liquid nitrogen tank is opened to raise the pressure, since the pressure coil is attached to the inner wall of the outer cylinder of the liquid nitrogen container , the liquid nitrogen tank coil will absorb the liquid nitrogen. The heat of the cylinder is vaporized to reach the target of boosting, and there may be freckles in the outer cylinder of the liquid nitrogen tank. After closing the liquid nitrogen tank booster valve, the frost point will gradually dissipate. When the liquid nitrogen tank pressure booster valve is closed and there is no infusion, the external appearance of the liquid nitrogen tank has signs of water and frost, which clarifies that the vacuum of the liquid nitrogen tank has been destroyed, and the liquid nitrogen tank cannot be used and inherited. Should be looking for liquid nitrogen tank professional manufacturers to repair or make a disposal punishment.

5. When transporting liquid nitrogen medium on the road surface of Grade III or below, please do not exceed 30km/h.

6, the vacuum nozzle on the liquid nitrogen tank, the seal of the quiet valve, the seal can not be destroyed.

7. If the liquid nitrogen tank is not used for a long time, please squeeze out the liquid nitrogen medium inside the liquid nitrogen tank and blow it dry, then seal all the valves.

8. Before filling the liquid nitrogen medium, the liquid nitrogen tank must be dried with a dry atmosphere to dry the container liner and all the valves and pipes before it can be filled with liquid nitrogen medium. Otherwise, the pipeline will freeze and block, affecting the boost and Infusion.

9. Liquid nitrogen tanks are instruments and meters. When using them, they should be handled with care. When opening the valves of liquid nitrogen tanks, the force should be moderate and not too high. The rate is not too fast; When uniting with the discussion at the inlet/drain valve, you can't over-tighten it with a big force. It can be sealed with a slight force in place (the ball head layout is easy to seal), so as not to accept the liquid nitrogen tank. Twist off and hold the liquid nitrogen tank with one hand when screwing.