What is the purpose of draining the bottom of the liquid oxygen storage tank?
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What is the purpose of draining the bottom of the liquid oxygen storage tank?
The purpose of draining the bottom of the liquid oxygen storage tank is mainly to remove any sediment, impurities, or frozen substances that may be present at the bottom of the tank. Such substances can cause damage to the tank and its associated equipment, or affect the purity of the liquid oxygen. At the same time, regular drainage also helps to check the operating condition of the storage tank and to detect any issues such as leaks. .
If hot work maintenance is to be carried out, the liquid oxygen must be drained. Not only must it be drained completely, but it also needs to be purged with nitrogen. This requirement is in place due to the dangers associated with arc welding; additionally, when changing the medium used to store liquids such as liquid nitrogen or liquid argon, it is also necessary to drain and replace said medium – for reference only.
Any storage tank must have a drain outlet
Why can’t water be used? Because the container needs to be dried before being filled with liquid again; otherwise, water accumulating in the valve tubing and other areas can cause freezing. The problems that arise from this are even more troublesome. The so-called nitrogen displacement not only possesses the properties of an inert gas but also has drying properties.
Why can’t water be used? Because the container needs to be dried before being filled with liquid again; otherwise, water accumulating in the valve tubing and other areas can cause freezing. The problems that arise from this are even more troublesome. The so-called nitrogen displacement not only possesses the properties of an inert gas but also has drying properties.