阀门是石油库中使用数量较多的设备,也是石油库事故的多发部位。这些部位的事故主要是:阀杆与填料之间的动密封处外漏油;阀件与阀座的动密封处内漏串油,阀体与阀盖、阀体两端与法兰连接处,垫片更换修理不及时或热(冻)胀内压过高“嗤垫”漏油,低压阀门材质的抗拉强度较低,阀门底部的积水使阀体胀裂破碎。加之石油库的阀门多为手动,且无启闭状态的监测或显示手段,所以 The valve is a large number of equipment used in the oil depot, but also the multiple parts of the oil depot accident. These parts of the accident are mainly: the dynamic sealing between the valve stem and the filler outside the oil leakage; valve seal and valve seat seal at the inner drain oil, the valve body and the valve cover, valve body at both ends of the connection with the flange , Gasket replacement repair is not timely or hot (frozen) inflation pressure is too high, “Chi Mat” oil spills, low pressure valve material tensile strength is low, the valve bottom of the water so that the valve body cracked. Coupled with the valve of the oil depot and more manual, and no open or closed state monitoring or display means, so