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Liquid Nitrogen Filling Precautions

Edit: Henan Tianchi Instrument Equipment Co., Ltd    Date:2018-08-20
TIANCHI Manufacturer : Liquid Nitrogen Filling Precautions:
When Dewar vessels is first filled with liquid nitrogen and refilled with liquid nitrogen after long-term deactivation, it should be pre-cooled first;
Liquid Nitrogen Filling Precautions
Because the inner tank is at room temperature, the filling should not be too fast, a small amount of injection, so that the inner tank gradually cools, the liquid nitrogen boiling phenomenon is weakened and then the filling speed is accelerated. Otherwise, the liquid nitrogen will boil and splash outward, causing frostbite.
Liquid nitrogen should not be overfilled. Do not allow the liquid level to be high enough to come into contact with the FRP neck.