新阀门养护技术在川气东送管道中的应用

根据国内天然气长输管道投产运行的经验,很多阀门在投产后出现不同程度的泄漏现象。为了保证安装的阀门在投产运行后稳定运行,防止发生阀门内漏、外漏等现象,川气东送管道在工程建设中引进阀门养护作业技术,在阀门安装、试压、试运行3个阶段进行有效的养护作业,确保了管线投产时所有阀门状态良好,一次试运行成功。阀门养护作业有效地延长了阀门的使用周期,对于保障管线的平稳运行,有效防范管道运行风险,具有十分重要的意义。

Application of Valve Maintenance Technology to NG Pipeline from Sichuan to East China

According to the experience of natural gas pipeline production in China,many valves after production present varying degrees of leakage.In order to ensure that valves may go into production smoothly after production and their running to prevent internal leakage,external leakage and other phenomena,NG pipeline from Sichuan to the east introduces the valve maintenance technology in the engineering construction.Through the effective maintenance work in valve installation,pressure tests,commissioning,all the valves are in good conditions when the pipeline goes into production.Valve maintenance extends the service life of valves.It is of vital significance to effectively safeguard pipeline＇s steady movement against risks in the pipeline movement.