燃气电厂内埋地钢质输气管道腐蚀整改设计  

Corrosion Rectification Design of the Buried Steel Gas Pipeline in Gas Power Plant

作　　者：杨昊[1] 任渊 罗赣 邓小涛[1] 马皎男 郭佳月 YANG Hao;REN Yuan;LUO Gan;DENG Xiao-tao;MA Jiao-nan;GUO Jia-yue(China Petroleum Pipeline Engineering Co.,Ltd.,Langfang 065000,China;Guiyang Oil and Gas Transportation Branch of China Petroleum Group Southwest Pipeline Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中国石油集团西南管道有限公司贵阳输油气分公司,贵州贵阳550081

出　　处：《材料保护》2020年第6期154-157,共4页Materials Protection

摘　　要：根据埋地燃气管道腐蚀检测结果,对燃气电厂内埋地钢质输气管道腐蚀原因进行了分析。对腐蚀后的管道壁厚进行了强度复核,提出了无遗漏的管道壁厚检测方法,根据管道壁厚检测结果提出管体修复要求,同时对修复后管道进行防腐蚀层修复设计,并重新对埋地管道进行了阴极保护系统设计。According to the corrosion detection results of the buried gas pipeline,the corrosion reasons of buried steel gas pipeline in gas power plant were analyzed.The pipeline wall thickness after corrosion was checked and the no-missing testing method for pipe wall thickness was proposed.According to the measuring results of the thickness of the pipe wall,the repair requirements were proposed and meantime the design of anticorrosion layer of the buried pipeline after the repair was conducted.Furthermore,the cathodic protection system was redesigned.

关 键 词：燃气电厂 钢质管道 腐蚀 整改 

分 类 号：TG172[金属学及工艺—金属表面处理]