What Are The Precautions For The Use Of Cryogenic Liquid Storage Tanks?

Cryogenic Liquid Tank is a common equipment for storing cryogenic liquids, which plays an important role in many occupational fields. Cryogenic liquid storage tanks are divided into liquid oxygen, liquid argon, liquid nitrogen, liquid carbon dioxide, and LNG natural gas storage tanks according to the types of storage media. wait. Cryogenic liquid storage tanks are divided into vertical and horizontal types according to their structural forms.

The cryogenic storage tanks have different operation and maintenance according to the different types and properties of the stored liquids in the tanks, and the corresponding safety matters that need to be paid attention to also have their own characteristics. Taking the cryogenic liquid nitrogen storage tank as an example, this paper introduces the relevant matters that need to be paid attention to:

According to the characteristics of liquid nitrogen, in order to ensure the safety and effect of storing liquid nitrogen in operation, it is necessary to clean the inner tank of the cryogenic liquid storage tank. This is to prevent the erosion and damage of the inner wall of the storage tank by liquid nitrogen. When cleaning, it is necessary to strictly follow The safe steps of tank cleaning are operated. First, the remaining liquid nitrogen in the tank is fully discharged to avoid safety accidents caused by the remaining liquid nitrogen.

After the discharge is complete, according to the nature of the liquid nitrogen, the cryogenic liquid storage tank body should be cleaned with neutral washing liquid, and then the tank body should be washed with clean water. During operation, attention should be paid to controlling the temperature of the washing liquid and clean water. In principle, it is not allowed to exceed 40 degrees Celsius. The cryogenic liquid storage tank cannot be put into operation immediately after cleaning operation, so as not to affect the normal effect of the tank body due to the remaining water in the tank.

After the moisture is completely dried, the cryogenic liquid storage tank injection operation is carried out, and the pre-injection operation must be carried out before a large amount of injection to ensure that the temperature in the cryogenic liquid storage tank reaches the standard, and a large amount of filling is carried out when the temperature is suitable.