There are two ways to realize liquefied gas, one is to cool down, the other is to compress the volume. Liquid oxygen, liquid nitrogen, liquid argon and other low-temperature liquid vaporizers are widely used in liquid vaporization stations to directly supply gas or fill bottles. Full liquefied air separation plant is a kind of equipment commonly used to realize liquefied gas in industrial manufacturing and production, which can meet various needs. At present, there are three types of high-pressure gasifier used in the air separation equipment: water bath type, air bath type, installed in the air separation tower, heated by processing air. The first two types of gasifiers are used for pressurized gasification after the liquid storage tank. Their cooling capacity is not recovered and the cooling loss is large. The early appearance of liquid in the liquefier of the full liquefied air separation plant indicates that the liquefier is connected too early.
