摘要
埋地钢质输气管道阴极保护效果的日常评价主要通过阴极保护电位参数进行判断,常规阴极保护电位测量法测得的保护电位存在IR降,影响阴极保护状况的正确判断。针对川西埋地输气管道阴极保护状况判定存在的问题,采用可极大限度减小IR降的极化探头测量阴极保护电位,建立基于WebGIS的阴极保护在线监测系统,通过GPRS无线通讯方式将采集到的阴极保护电位定时传送到监测中心,既提高了测量精度又提高时效及资源共享程度,为管道维护提供了实时决策依据。
The effect of buried gas pipeline cathodic protection is usually evaluated through analysis on cathodic protection potential parameters.The protective potential measured by conventional cathodic protection potential measurement method has an IR drop,which will affect correct judgment on the cathodic protection effect.Analyzed are some issues in the judgment on cathodic protection effect of the western Sichuan buried gas pipelines,adopted is polarization probe to measure cathodic protection potential,which can reduce the IR drop greatly,established is a cathodic protection online monitoring system based on WebGIS,transmitted are cathodic protection potential collected at any time to the monitoring center at regular time,which can greatly improve measurement accuracy,timeliness and resources sharing degree,and provide decision-making basis for pipeline maintenance.
出处
《天然气与石油》
2012年第3期75-77,103,共3页
Natural Gas and Oil
基金
国家"十一五"科技支撑计划资助项目(2006BAB07-02)
关键词
阴极保护
电位
无线传输
WEBGIS
在线监测
Cathodic protection
Potential
Wireless transmission
WebGIS
Online monitoring
