遥测技术在上海天然气主干网杂散电流干扰控制中的应用

燃气管网的运行过程中,除流量、压力等对实时性要求高的参数外,还有管道的防腐层状态、管道腐蚀防护等参数,虽然这些参数对于实时性要求相对较低,但对于管道安全运行同样起到关键作用。尤其是管道的腐蚀防护相关参数,如:管地电位、管道防腐层漏点等,通过这些参数,我们可判别管道是否处于本质安全的状态。文章主要介绍了遥测技术在监控主干网部分管段的管地电位和地铁、高压输电线路、电气化铁路、磁悬浮等杂散电流干扰管段上的应用。

Telemetry Technology Application in Shanghai Natural Gas Pipeline Backbone Network Stray Current Interference Control

In addition to flow and pressure high real-time requirement parameters, there are the pipe coating state, pipe corrosion protection and other parameters during gas pipeline network operation, although these parameters real-time requirement are relatively low, but also play a key role in pipeline safe operation. Especially pipeline corrosion protection related parameters, such as： pipe ground potential, leakage point of pipeline coating, etc, through these parameters, we can determine the pipelines safety in essence whether or not. This paper mainly introduces telemetry technology in the application of monitoring part of gas pipeline backbone network pipe ground potential with underground, high voltage transmission lines, electrification of railways, magnetic levitation and other stray current interference.