事故经过 1993年7月6日,某电化厂二硫化碳生产装置,工人发现技改工程H-601(冷凝器)的排气管冒水。打开T-601(汽液回收罐)至P-601泵管道上的两个低点排放阀后有少量水流出,判断管道中有堵塞,决定停止硫回收和硫过滤系统蒸汽回水进入T-601罐,就地排放。先将合成工段蒸汽阀全部关死,停止供汽。然后拆除P-601泵前的短节。拆下短节后 Accident After July 6, 1993, an electrochemical plant carbon disulfide production plant, workers found that technical transformation project H-601 (condenser) exhaust pipe to take water. A small amount of water flowed out after the T-601 (vapor-liquid recovery tank) was opened to the two low-point bleed valves on the P-601 pump tubing to determine that there was a blockage in the tubing and the decision to stop the sulfur recovery and sulfur filtration system steam back into the T- 601 cans, discharged locally. The first synthetic steam valve all closed, stop for steam. Then remove the short section before the P-601 pump. After removing the short section