紧急截止阀在石油化工工程中的设计探讨

Emergency Block Valve in Petrochemical Engineering

参考国内外设计规范的规定及一般做法,介绍了石油化工工程中紧急截止阀的设置原则。详细阐述了紧急截止阀不同于一般紧急切断阀的阀体及执行机构的技术要求,并针对这些技术要求对紧急截止阀的设计选型进行了深入探讨。结合紧急截止阀的安装及相关系统的设计,从防火设计的角度阐述了紧急截止阀在装置火灾中的安全作用。

This paper introduces the setting principle of emergency block valve in petrochemical engineering by referring to the provisions and general practices of design codes at home and abroad.This paper describes in detail the technical requirements of the valve body and actuator of emergency block valve which are different from the general emergency shut off valve,and discusses the design and selection of emergency block valve in view of these technical requirements.Combined with the installation of emergency block valve and the design of related systems,the safety function of emergency block valve in plant fire is described from the Angle of fire protection design.