How to maintain cryogenic storage tanks effectively

Before using the cryogenic storage tank, a small amount of liquid nitrogen can be placed in it for pre-cooling. When the temperature inside the tank reaches that of the liquid nitrogen, fill the cryogenic storage tank with liquid nitrogen.

When handling cryogenic storage tanks, handle them with care to avoid collision or squeezing. Do not drag or move the cryogenic storage tank on the ground. When moving the cryogenic storage tank, lift it up. Moreover, when not in use, store the cryogenic storage tank in a dry and well-ventilated room to prevent moisture.

Regularly inspect the neck stopper and the small groove of the neck stopper of the cryogenic storage tank, promptly remove the ice on the neck stopper, and do not place plastic sheets or other substances on the neck stopper to enhance the sealing performance and ensure the functional use of the cryogenic storage tank.

When it is found that the consumption rate of liquid nitrogen is too fast or there are water droplets or white frost near the neck of the cryogenic storage tank, it indicates that the insulation function of the tank is out of balance and it cannot retain liquid nitrogen. Specimens placed in the cryogenic storage tank should be properly marked. When taking them out or putting them in, they should be done steadily, accurately and quickly.

To prevent erosion of the tank wall, the inner cavity of the cryogenic storage tank needs to be cleaned once a year. In addition, it is necessary to minimize the transportation of cryogenic storage tanks and reduce the frequency of opening them. If transportation is required, the cryogenic storage tank must be fixed to the vehicle box with ropes to keep it upright, prevent it from being dropped, overturned or laid horizontally, and try to avoid severe vibration.

Paying attention to the above points can play a good role in maintaining the cryogenic storage tank and effectively extend its service life.