How to reduce liquid storage loss in cryogenic storage tanks

The status of cryogenic storage tanks in the chemical industry cannot be ignored, and I believe everyone is no stranger to it. Many people will inevitably have some problems in the process of using cryogenic storage tanks, such as the phenomenon of liquid storage reduction in cryogenic storage tanks. When this phenomenon exists, how can we solve it?
 
Since the vapor density of the liquid in the cryogenic storage tank is mainly determined by the composition of the liquid, it is generally unchangeable. First of all, it is necessary to establish sound rules and regulations for cryogenic storage tanks, reduce operating links, and use cryogenic storage tanks rationally. The number of large breaths during transportation of liquid storage should be reduced to a lower limit. Therefore, minimize intermediate links and strengthen The management of storage tanks minimizes unnecessary replacement of cryogenic storage tanks, reduces the empty capacity of cryogenic storage tanks, and maintains a high degree of tightness of cryogenic storage tanks.
 
Secondly, rationally arrange storage and operation for the liquid storage in the cryogenic tank, reduce breathing loss, strengthen equipment maintenance, and strictly implement operating procedures; the inhalation and exhaust of the large breath can be used to offset the intake and exhaust of the small breath , The cryogenic storage tank can be arranged when the temperature rises or when the cryogenic storage tank needs to be exhausted. Generally speaking, as long as the fluid is used to reduce the pressure of the temperature rise in the cryogenic storage tank, it is not necessary to exhaust or reduce the exhaust to reduce the loss. Not only that, but also focus on checking the sealing condition of the cryogenic storage tank, such as whether the breathing valve is malfunctioning, when using manual gauges, in addition to using advanced equipment, try to inhale in the early morning or evening when the internal and external differences in the cryogenic storage tank are small. After measuring the oil, at this time, the inspiratory volume is small, and the exhaled gas concentration is low. The loss is small.
 
In addition, the gas space on the liquid storage surface of the cryogenic storage tank must be eliminated, and the outer floating roof and the inner floating roof are now used. This can not only eliminate the small breathing loss of the cryogenic storage tank, but also eliminate the large breathing loss of the storage tank. In addition, reducing the temperature and range of changes in cryogenic storage tanks, or using strong reflective anti-corrosion coatings, can also reduce losses to a certain extent.