当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
1期
192-194,204
,共4页
滩海%补口%智能电位系统
灘海%補口%智能電位繫統
탄해%보구%지능전위계통
Offshore area%Joint coating%Intelligent potential system
由于滩海地段土壤中含盐量高，电阻率低，腐蚀性很高，钢质管道补口及阴极保护测试系统尤为重要。结合唐山液化天然气外输管道（以下简称唐山 LNG）工程论述了滩海地段管道应采取的不同于一般地段的补口方式及智能电位系统设计方案，提出了在现场补口施工中出现的问题，分析原因，提出了解决方案。并根据工程实践，提出了滩海地段管道在阴极保护设计中应注意的其他问题。
由于灘海地段土壤中含鹽量高，電阻率低，腐蝕性很高，鋼質管道補口及陰極保護測試繫統尤為重要。結閤唐山液化天然氣外輸管道（以下簡稱唐山 LNG）工程論述瞭灘海地段管道應採取的不同于一般地段的補口方式及智能電位繫統設計方案，提齣瞭在現場補口施工中齣現的問題，分析原因，提齣瞭解決方案。併根據工程實踐，提齣瞭灘海地段管道在陰極保護設計中應註意的其他問題。
유우탄해지단토양중함염량고，전조솔저，부식성흔고，강질관도보구급음겁보호측시계통우위중요。결합당산액화천연기외수관도（이하간칭당산 LNG）공정논술료탄해지단관도응채취적불동우일반지단적보구방식급지능전위계통설계방안，제출료재현장보구시공중출현적문제，분석원인，제출료해결방안。병근거공정실천，제출료탄해지단관도재음겁보호설계중응주의적기타문제。
Because of high salt content, low resistivity and high corrosive of soil in the offshore area,steel pipeline joint coating and cathodic protection test system are particularly important. Taking Tangshan liquefied natural gas pipeline project as an example, the joint coating method and intelligent potential system design scheme for the offshore area pipeline were discussed, the problems existing in the construction of the joint coating were put forward, the reasons were analyzed, and the solutions were put forward. According to the engineering practice, points for attention in cathodic protection design of the offshore pipeline were put forward.
