How to operate a vertical cryogenic storage tank safely

The main function of vertical cryogenic liquid storage tank is to fill and store cryogenic liquid. For the safe use of cryogenic liquid storage tanks, comprehensive consideration should be given to the dangerous properties of gas, cryogenic protection effects, surrounding environmental conditions, and characteristics of pressure vessels, etc., and appropriate technical management measures should be taken to ensure safe operation.

The structure and type of cryogenic liquid storage tanks. In recent years, the low-temperature liquid market has become increasingly popular. The sales of liquid oxygen, liquid argon, liquid nitrogen, and liquid carbon dioxide, and LNG and natural gas have increased sharply. Non-steel products are an important part of revenue. The production, storage, and transportation of cryogenic liquids cannot be separated from cryogenic storage tanks. They are installed and used in large quantities.

Operators of cryogenic liquid storage tanks should understand the structural characteristics of the equipment and its valve systems in detail, be familiar with the dangerous characteristics of cryogenic liquids, strictly control the surrounding environment, and operate in accordance with the safe operating procedures of cryogenic liquid storage tanks. Operators must pass the training and assessment of the quality and technical supervision department at the city level and above, and hold the pressure vessel operation qualification certificate before they can start work. Prior to work, workers should take appropriate measures to protect labor safety. During the normal use of the cryogenic liquid storage tank, a special person should be responsible for the roving inspection. Check that the pressure of the inner container does not exceed the working pressure of the storage tank. If the pressure is exceeded, pressure relief measures should be taken. Check the status of each valve and the leakage status, and find that the status is different or there is a leak. You should take timely measures to properly correct the abnormality.

Regularly check the vacuum in the jacket of the cryogenic liquid storage tank. If the vacuum deteriorates, take additional vacuuming measures (storage of the tank should be invited to the professional unit or the original manufacturing unit). If you find that there are various failures of the cryogenic liquid storage tank equipment and accessories, you should always find out the reason, make correct analysis and judgment, and take reasonable solutions to ensure its continuous normal operation and safe use.