输气干线系统失效模式研究
2015-10-21谢青青
谢青青
摘 要:管道输气已经成为世界上天然气输送的最主要方式,也是一种高效和安全的输送方式,其运行可靠性对于世界的能源供应起着重要的作用。输气干线系统中各个基本单元的失效模式研究作为可靠性分析的基础,对于后续分析整体系统可靠性有重要意义。管道单元、压气站单元以及自控系统是输气干线系统中的基本单元,而输气干线系统中不同基本单元的失效模式各不相同,所以需要在系统基本组成单元失效模式的定义与基本内涵的基础上,对单元的失效模式分别进行研究。今后在进行输气系统可靠性评价时,需要明确各个单元的失效模式,以对系统可靠性作出最为准确的判断
关 键 词:输气干线系统;失效模式;管道单元;压气站单元
中图分类号:TE 832 文献标识码: A 文章编号: 1671-0460(2015)07-1711-04
Research on the Failure Mode of Transmission System
XIE Qing-qing
(China University of Petroleum(Beijing), Beijing 100249,China)
Abstract: Using pipeline to transport gas has become the main way of gas transportation in the world, and it also is a kind of efficient and safe way of transportation. At the same time, the operation reliability of transmission system plays an important role for the world's energy supply. Failure mode research on each basic unit of the transmission system as the basis of reliability analysis is important for analysis of the overall system reliability. Transmission system consists of pipeline unit, compression station unit and control system, and the failure modes of each unit are not the same. As a result, it is necessary to define the failure modes of each unit before analyzing. For further research on the reliability assessment of transmission system, it is necessary to make the failure mode of each unit clear and definite in order to judge the reliability of the system.
Key words: transmission system;failure mode;pipeline unit;compression station unit
目前,运用管道输气已经成为世界上输送天然气的最主要方式,也是一种高效安全的输送方式。天然气管网对天然气生产和供应非常重要,因为一旦管网发生故障,就会直接影响天然气气田生产以及供气质量。随着我国天然气管道的迅速发展,到目前为止已经建成并运营的天然气输送管线总长已经超过了4万km,天然气管道运行可靠性已得到高度重视[1]。天然气管输工艺流程虽然不复杂,但由于使用各种控制仪表和自动化装置,以及天然气为易燃易爆介质等原因,使得管道系统从工艺以及设备来看,需要较高的可靠性水平。……
