中国石油大学学报（自然科学版）Issue(6)：161-166,6.DOI:10.3969/j.issn.1673-5005.2014.06.024
基于边界元法的站场区域阴极保护设计
Cathodic protection design of station area based on boundary element method
摘要
Abstract
In oil or gas stations there can be situations where many underground pipelines are present in reasonably close proximity. This can lead to serious interference and shielding phenomena, and there are many grounding networks that can cause substantial loss of the cathodic protection current. The mathematical model of the buried pipeline cathodic protection potential distribution was established and the boundary element method was used for discretization of the equations. Then ex-periment was designed, the buried pipeline cathodic polarization curve was tested, and the piecewise linear method was used for processing. The numerical simulation software based on boundary element method BEASY was used for the design of ca-thodic protection for a station. Three kinds of cathodic protection methods are considered, which are sacrificial anode cathod-ic protection, impressed current cathodic protection, and combination of sacrificial anode and impressed current joint cathod-ic protection. The results show that the boundary element method is an effective tool to solve the problems in buried pipeline cathodic protection. The combination of sacrificial anode and impressed current joint cathodic protection can solve two prob-lems effectively. The number of anodes needed for sacrificial anode protection is great and this technology is difficult to im-plement in engineering practice. For impressed current cathodic protection, the distribution of the whole buried pipeline po-tential is not uniform.关键词
区域阴极保护/边界元/BEASY/牺牲阳极保护/外加电流阴极保护Key words
regional cathodic protection/boundary element/BEASY/sacrificial anode protection/impressed current ca-thodic protection分类
能源科技引用本文复制引用
崔淦,李自力,卫续,白雪..基于边界元法的站场区域阴极保护设计[J].中国石油大学学报（自然科学版）,2014,(6):161-166,6.基金项目
国家科技重大专项(2008ZX05017-04-01) （2008ZX05017-04-01）
