Precautions for storage of cryogenic liquid nitrogen storage tanks

In industry, cryogenic storage tanks are often used to store liquid nitrogen, and they are also based on the characteristics of liquid nitrogen. Therefore, there are some things that need to be paid attention to when using cryogenic storage tanks. To ensure the storage effect and safety, in the case of using cryogenic storage tanks to store liquid nitrogen, it is necessary to ensure that the inner cavity of the storage tank is cleaned once a year to avoid the corrosion of the inner wall of the cryogenic storage tank by the liquid nitrogen.
 
Before cleaning the storage tank, the liquid nitrogen discharge should be completely removed. The discharge should be operated in accordance with professional methods, and then neutral detergent should be used for cleaning. After cleaning with the detergent, a large amount of water should be used for secondary flushing. The storage tank cannot be put into use immediately after cleaning. Make sure that the water in the tank is dry. At the same time, pay attention to the temperature of the washing liquid and the washing water. Because the liquid nitrogen is stored in a cryogenic storage tank, the low temperature requirements must be guaranteed, so the cleaning liquid temperature is generally It is said that it should not exceed 40 degrees Celsius. Excessive temperature will affect the performance of the storage tank. Cryogenic storage tanks are equipment for high-vacuum storage of cryogenic liquids. During use, attention should be paid to the relevant maintenance methods to ensure that the storage role of the storage tank is fully utilized, and at the same time, it can extend the service life of the equipment to reduce the frequency and frequency of equipment replacement. cost. Before using the cryogenic storage tank to store a large amount of liquid nitrogen, it is necessary to inject an appropriate amount of liquid nitrogen to pre-cool the tank body, and then start to fill a large amount of liquid nitrogen when the temperature in the tank is determined to be at a suitable temperature.
 
The environment where the cryogenic storage tank is located should be kept dry and well ventilated.
 
In the process of storing liquid nitrogen in cryogenic storage tanks, it is necessary to reduce the number of openings as much as possible. At the same time, it is necessary to pay more attention to the effective icing condition of the neck plug in daily life. If it is necessary to be clear in time, at the same time, if When there is water droplets or hoar frost on the neck, it is necessary to check the insulation of the tank in time to determine whether the tank is suitable to continue to store liquid ammonia. It is necessary to make a cryogenic storage tank for storing liquid ammonia. The marking work is convenient for more detailed understanding of the situation. When the cryogenic storage tank needs to be transported, keep the tank upright to avoid severe vibration and impact during the transportation, and to ensure the safety and normal performance of the tank.