石油化工高等学校学报2017，Vol.30Issue(6)：73-78,96,7.DOI:10.3969/j.issn.1006-396X.2017.06.014
高压直流接地极对埋地管道的干扰及防护研究
Interference and Mitigation of HVDC Grounding Electrode on Buried Pipelines
赵雅蕾 1李自力 1房翔鹏 2杨超 1崔淦1
作者信息
- 1. 中国石油大学(华东)山东省油气储运安全省级重点实验室 青岛市环海油气储运技术重点实验室,山东 青岛 266580
- 2. 青岛新奥燃气有限公司,山东 青岛 266580
- 折叠
摘要
Abstract
Due to the similarity of the routing between HVDC transmission lines and buried pipelines ,the local pipelines inevitably enter the HVDC transmission interference zone .In order to study the law of interference and mitigation of HVDC grounding electrode on buried pipeline ,boundary element software was used to calculate the effectiveness of various mitigation methods including anti-corrosion coating ,the distance between the pipeline and the grounding electrode ,insulating joints and zinc ribbon .The results indicated that the smaller the coating breakdown factor was ,the more concentrated the interference current was ,and the higher the local corrosion risk was .After installing the insulating joints ,the strongest interfered section of pipe was alleviated ,while the interference of the other section of pipe was aggravated .The protection range of the zinc ribbon was equivalent to the length of the zinc ribbon .Finally ,the paper put forward the comprehensive protection measures which included insulating joints ,cathodic protection and zinc ribbon .关键词
接地极/管道/直流干扰/防护措施/数值计算Key words
Electrode/Pipeline/DC interference/Mitigation/Numerical simulation分类
矿业与冶金引用本文复制引用
赵雅蕾,李自力,房翔鹏,杨超,崔淦..高压直流接地极对埋地管道的干扰及防护研究[J].石油化工高等学校学报,2017,30(6):73-78,96,7.
