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[1]顾清林,姜永涛,曹国飞,等.高压直流接地极对埋地管道的干扰监测及影响规律[J].油气储运,2021,40(01):26-32.[doi:10.6047/j.issn.1000-8241.2021.01.005]
　GU Qinglin,JIANG Yongtao,CAO Guofei,et al.Interference monitoring and influence rule of HVDC grounding electrode to buried pipelines[J].Oil & Gas Storage and Transportation,2021,40(01):26-32.[doi:10.6047/j.issn.1000-8241.2021.01.005]
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高压直流接地极对埋地管道的干扰监测及影响规律

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 40 期数: 2021年01期 页码: 26-32 栏目: 出版日期: 2021-01-30
Title:

Interference monitoring and influence rule of HVDC grounding electrode to buried pipelines

文章编号:
1000-8241（2021）01-0026-07
作者:

顾清林1; 姜永涛1; 曹国飞1; 葛彩刚2; 丁疆强1; 高荣钊2; 修林冉1; 宋莹莹2

1. 国家管网集团西气东输分公司；2. 北京安科管道工程科技有限公司

Author(s):

GU Qinglin1;  JIANG Yongtao1;  CAO Guofei1;  GE Caigang2;  DING Jiangqiang1;  GAO Rongzhao2; XIU Linran1;  SONG Yingying2

1. PipeChina West East Gas Pipeline Company; 2. Beijing Safetech Pipeline Co. Ltd.

关键词:

天然气管道; 高压直流输电工程; 接地极; 电位远程监测系统; 杂散电流

Keywords:

natural gas pipeline;  HVDC transmission engineering;  grounding electrode;  remote potential monitoring system;  stray current

分类号:
TE980.42
DOI:
10.6047/j.issn.1000-8241.2021.01.005
文献标志码:
A
摘要:

为了掌握高压直流输电工程接地极对埋地管道杂散电流干扰的影响规律，在17 个高压直流 输电工程接地极附近的12 条管道上安装了电位远程监测系统，对管道电位进行长时间连续监测。 通过管道电位变化分析接地极的干扰频次和干扰时间，以及管道受干扰程度、影响范围。监测结果 显示：通过对管道电位长时间连续监测能够准确判断出接地极对管道的干扰影响，2017 年17 个接 地极的总干扰频次为201 次，干扰总时长为657.31 h，较2016 年略有下降；监测到1 987 km 管道受 到接地极的干扰，其中华南地区接地极对管道的干扰较华东、华中及西北地区大。干扰电位分布规 律分析结果表明，接地极与管道的垂直距离越短，靠近接地极端杂散电流流入流出的管段越短，其对 远离接地极端的管道的干扰程度越大、干扰范围越广。（图7，表2，参21）

Abstract:

In order to understand the influence rule of the grounding electrode of HVDC transmission engineering on the stray current of buried pipeline, the remote potential monitoring system was equipped for 12 pipelines near the 17 grounding electrodes of HVDC transmission engineering for continuous monitoring of pipeline potential in long time. The interference frequency and time of grounding electrodes, as well as the interference degree and range of pipeline, were analyzed based on the variation of pipeline potential. According to the monitoring results, the interference influence of grounding electrode to pipeline can be judged accurately through the long-time continuous monitoring of pipeline potential. In 2017, the interference frequency of 17 grounding electrodes was 201 times, and the total interference time was 657.31 h, which was slightly shorter than that in 2016. Interference of grounding electrode was monitored on 1 987 km pipelines, and particularly, the interference of grounding electrode to pipeline in South China was greater than that in East China, Central China and Northwest China. By analysis on the distribution rule of interference potential, it is found that the shorter the vertical distance from grounding electrode to pipeline, the shorter the pipeline section with stray current flowing in the end close to the grounding electrode, the greater the interference to the pipeline far away from the grounding electrode, and the larger the interference range is. (7 Figures, 2 Tables, 21 References)

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[11]顾清林　姜永涛　曹国飞　葛彩刚　丁疆强　高荣钊　修林冉　宋莹莹.高压直流接地极对埋地管道的干扰监测及影响规律[J].油气储运,2021,40(01):1.
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备注/Memo

基金项目：中国石油天然气股份有限公司科学研究与技术开发 项目“安全环保关键技术研究与推广——高压直流电区域管道风险 防控技术研究与应用”，2016D.4602。
作者简介：顾清林，男，1965 年生，高级工程师，1989 年毕业于佳 木斯工学院焊接工艺与设备专业，现主要从事管道完整性管理工作。 地址：上海市浦东新区世纪大道1200 号中国石油上海大厦34 楼， 200122。电话：021-50958766。Email：gql6512@163.com

更新日期/Last Update: 2021-01-30