SHAFER气液联动执行机构紧急自动关断功能失效分析与预防措施

Fault Analysis and Preventive Measures of Emergency Automatic Shutdown Function of SHAFER Pneumatic–Hydraulic Driven Actuator

SHAFER气液联动执行机构是国内天然气长输管道干线和输气站场配备的紧急自动关断设备。但在遇到爆管、火灾等紧急情况时,一旦无法自动关断,将会使天然气长输管道和输气站场灾情无法控制。因此SHAFER气液联动执行机构自动关断功能失效形成了安全隐患。从紧急自动关断功能原理入手,分析形成自动关断功能失效的原因,并提出预防措施。

SHAFER gas-liquid linkage actuator is the domestic natural gas long--distance pipeline and gas transmission stationequipped with emergency automatic shutdown equipment.But in the event of explosion, fire and other emergencies, once can notautomatically shut down, will make long-term natural gas pipeline and gas station disaster can not control.So SHAFER gas-liquidlinkage actuator automatic shutdown function failure to form a security risk.From the principle of emergency automatic shutdownfunction, analysis of the reasons for the formation of automatic shutdown function failure, and put forward preventive measures.