Cryogenic liquid storage tank is a common equipment for storing cryogenic liquid, which plays an important role in many professional fields. cans etc. Cryogenic liquid storage tanks are divided into vertical and horizontal types according to their structure.
Cryogenic liquid storage tanks are different in operation and maintenance depending on the nature of the liquid stored in the tank, and the corresponding safety matters that need to be paid attention to also have their own characteristics. Taking cryogenic liquid nitrogen storage tanks as an example, we will introduce the relevant precautions:
According to the characteristics of liquid nitrogen, in order to ensure the safety and effectiveness of storing liquid nitrogen in use, it is necessary to clean the inner tank of the cryogenic liquid storage tank. This is to prevent liquid nitrogen from corroding and damaging the inner wall of the storage tank. Strictly follow the To operate the safety steps of storage tank cleaning, first discharge the remaining liquid nitrogen in the tank completely, so as to avoid the remaining liquid nitrogen from causing safety accidents.
After the discharge is complete, according to the nature of the liquid nitrogen, the cryogenic liquid storage tank should be cleaned with a neutral lotion, and then flushed with clean water. During the operation, care should be taken to control the temperature of the lotion and clean water. In principle, it is not allowed to exceed 40 Celsius. The cryogenic liquid storage tank cannot be put into use immediately after the cleaning operation, so as to prevent the remaining water in the tank from affecting the normal performance of the tank body.
The filling operation of the cryogenic liquid storage tank should be carried out after the moisture control is completely dry, and the pre-filling operation must be carried out before a large amount of injection, so as to ensure that the temperature in the cryogenic liquid storage tank reaches the specification, and then fill a large amount when the temperature is suitable.
