| 从任京线检查片腐蚀谈管道阴极保护作用 |
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| 引用本文： | 张学友.从任京线检查片腐蚀谈管道阴极保护作用[J].油气储运,1997,16(11):25-26. |
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| 作者姓名： | 张学友 |
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| 作者单位： | 中国石油天然气管道局北京输油公司 |
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| 摘 要： | 在管道附近埋设检查片是研究管道腐的一项重要手段，它可以定量分析管道阴极保护效果，对任京输油管道雄县站管段埋设了１６年的检查片进行检测和分析，结果表明，经过１６年的地下埋设，有防腐层并通电的检查片表面光洁度与当初埋设时相近；有防腐层未通电的检查片表面略有腐蚀；而无防腐层未通电的检查片腐蚀严重。通过对检查片的单位失重值、平均厚度损失和失重保护度的计算，可以认为管道的防腐层固然很重要但施加的阴极保护对管
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| 关 键 词： | 阴极保护 样品分析 输油管道 |
From Corrosion Condition of the Coupons Buried in the Renjing Pipeline to See the Function of Cathodic Protection |
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| Zhang Xueyou.From Corrosion Condition of the Coupons Buried in the Renjing Pipeline to See the Function of Cathodic Protection[J].Oil & Gas Storage and Transportation,1997,16(11):25-26. |
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| Authors: | Zhang Xueyou |
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| Institution: | Zhang Xueyou |
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| Abstract: | Burying coupons near the pipeline is an important method for studying pipeline corrosion and doing quantitative analysis about the effect on pipeline cathodic protection. After inspecting the coupons that have been buried in the Xiongxian pump station section of the Renjing crude oil pipeline for 16 years,the result shows that the surface smoothness of the electrified coupon with corrosion protection coating approaches to the initial condition,the surface of the electrified coupon without corrosion protection coating shows light corrosion,and the surface of the unelectrified coupons without corrosion protection coating shows serious corrosion. According to the calculation of the average corrosion rate,average thickness-loss and weight-loss rate, it is understood that cathodic protection can play a significant part in the long safety operation of pipeline beside the coating. |
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| Keywords: | buried pipeline cathodic protection sample analysis effect |
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