笔者在岳阳化工总厂锦纶厂工作期间,该厂曾发生一起板翅式换热器进水冰堵事故,是由循环水加药灭菌、产生大量泡沫而引起。后采取停水泵,排放空冷塔水分离器水分、缩短切换时间等措施,经28小时紧急处理后,工况恢复正常。在事故处理过程中,氧,氮气不中断供应,没造成重大损失。现介绍如下: During the work of the nylon factory of Yueyang Chemical Plant, the factory had an ice blocking accident with the plate-fin heat exchanger. It was caused by the sterilization of circulating water and the generation of a large amount of foam. After taking the water pump, air-cooled water separator discharge moisture, shorten the switching time and other measures, after 28 hours of emergency treatment, the working conditions returned to normal. In the accident process, oxygen, nitrogen supply without interruption, did not cause significant losses. Now introduced as follows: