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1994年11月,河北省某工厂一只装在采暖蒸汽管道上的活塞型减压阀(Y43H—16,DN150)发生爆炸事故,致使2人烫伤,直接经济损失约15000元。1 事故概况爆炸的减压阀安装在该厂热力站房外的采暖蒸汽管道上,事发当日,该厂为了顺利送出采暖蒸汽,派两名工人上栈桥对该减压阀进行压力调整,另有一人负责调节送汽阀门,当压力升至约0.8MPa时,随着“嗤”的一声响,一股强大的蒸汽流,突然从减压阀底喷出,
In November 1994, an explosion occurred in a piston-type pressure-reducing valve (Y43H-16, DN150) installed in a heating steam pipe at a certain factory in Hebei Province, causing two people to be scalded and a direct economic loss of about 15,000 yuan. 1 Accident Overview Explosive decompression valve installed in the plant heating station outside the heating steam pipe, the incident the same day, the plant in order to successfully send heating steam, send two workers on the bridge to the pressure relief valve pressure adjustment, and the other One person is responsible for regulating the delivery valve, when the pressure rose to about 0.8MPa, with the sound of “laugh”, a powerful steam flow suddenly ejected from the bottom of the pressure relief valve,