The main reasons for the increase in liquid losses in cryogenic storage tanks
Influence of pearlescent sand filling rate, Liquid nitrogen storage tank liner and pipe welds.
Influence of pearlescent sand filling rate: the pearlescent sand between the interlayer is not filled solidly when filling, and gradually sinks in the process of using, so that there is no adiabatic heat preservation packing in the upper interlayer of the liquid nitrogen storage tank, which reduces the effect of cold preservation, accelerates the heat transfer, and makes the daily evaporation rate increase.
Liquid nitrogen storage tank liner and pipe welds: the inner cylinder and piping welding quality is not good, cracks, resulting in liquid leakage, resulting in increased liquid loss. At this time, the lower part of the crack will be frost, ice, and even the outer cylinder will be frozen.
