【摘要】 介绍了落球式全机械式地震自动关闭的燃气阀门以及永磁式全机械地震燃气阀门以及基于地震动参数控制的城市燃气管道地震安全控制系统技术的结构原理、技术性能,并对其进行了全面测试,获得了理想的结果。在唐山某小区率先安装了国内第一套燃气管网地震安全控制系统,该系统已安全运行了近4 a。更多还原

【Abstract】 This paper mainly introduces the falling ball type full mechanical earthquake self-closing gas valve and the permanent magnetic mechanical earthquake gas valve. The principle and performance of the urban gas pipeline seismic security control system technique based on seismic ground motion parameter were also introduced. Both gas valves were tested comprehensively and good results were obtained. The first set of gas pipeline seismic security control system was installed in a community of Tangshan City. It has already been running safely for almost 4 years.更多还原