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一、一起少见的水冷塔引起的板翅式换热器进水事故1.事故经过1990年10月,我公司2号1500m~3/h制氧机在在冷开车第二阶段,因空压机供电系统故障而停车,约2小时后再启动时发现切换板翅式换热器(以下简称“板式”)堵塞,打开四组板式热端的吹除阀PF-157~PF-160,放出大量的水,后经过多种应急处理无效,迫不得已重新停车对板式进行局部加温吹除。同时,在加温过程中发现板式1、4通道堵塞比2、3通道严重。
First, with a rare water-cooled tower caused by the plate-fin heat exchanger water accident 1. After the incident in October 1990, our company No. 2 1500m ~ 3 / h oxygen machine in the second phase of cold driving, due to air pressure Machine power system failure and stop, about 2 hours after the start and found to switch plate-fin heat exchanger (hereinafter referred to as “plate”) blockage, open the four hot plate blowing valve PF-157 ~ PF-160, release a large number Of water, after a variety of emergency treatment is invalid, forced to re-stop the plate on the local heating blow. At the same time, found in the heating process plate 1,4 channel blockage serious than 2, 3 channel.