The water seal arrangement for flare gas recovery and its application in Yangzi Petrochemical Co. were described. Some problems existed were analysed, and propositions for improvement were given.

• 介绍了扬子石化公司火炬气回收装置的水封阀系统,分别叙述了各系统的投用情况,对存在的问题进行了分析,并提出改进建议。