During normal operation, the rising steam has a certain speed when passing through the small hole, which can hold the liquid on the fractionator tray, prevent the liquid from leaking from the small hole, and can only flow along the tray, and then flow to the next tray through the overflow bucket. After parking, due to the interruption of the rising steam, the liquid on the tray loses the support of the rising steam and flows sequentially from the sieve holes of each tray to the bottom, accumulating in the condensate evaporator and liquid kettle. Therefore, during temporary parking, the liquid oxygen and liquid air levels will rise, even exceeding the position of the expansion air and oxygen outlet pipe, which can easily cause accidents of expansion machine carrying liquid or switching heat exchanger cold end carrying liquid during restarting.
Therefore, when temporarily stopping the air separation equipment, attention should be paid to the liquid level position, and if necessary, some liquid can be discharged.
Over the years of operation, DEAR Air Separation has not only been committed to providing high-quality complete sets of air separation equipment to domestic and international customers, but also long-term services such as air separation equipment maintenance, energy conservation, intelligent upgrading and transformation. As of now, the company has undertaken the maintenance business of over 100 sets of air separation equipment, and has completed energy-saving and intelligent transformation of multiple sets of air separation equipment.
