| 直流和交流混流杂散电流对埋地燃气管道失效影响的实验室研究 |
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| 引用本文： | 丁海涛,李龙江,姜铭赫,郭治伟,白红垒.直流和交流混流杂散电流对埋地燃气管道失效影响的实验室研究[J].贵州化工,2010,35(5):9-12. |
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| 作者姓名： | 丁海涛 李龙江 姜铭赫 郭治伟 白红垒 |
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| 作者单位： | [1]贵州大学矿业学院,贵州贵阳550003 [2]贵州非金属矿产资源综合利用重点实验室,贵州贵阳550003 |
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| 基金项目： | 贵阳市科技局项目，教育部春晖计划资助项目，贵州大学SRT资助项目 |
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| 摘 要： | 把埋地燃气管道受到直流和交流影响的现场环境通过相似原理搬到实验室。首先介绍了直交流混流杂散电流的概念、来源、危害以及腐蚀作用机理,接着分析了实验所用土壤的理化性质,介绍实验原理,然后进行了直流和交流杂散电流共同作用下腐蚀影响的实验研究。研究表明,在直流和交流共同作用下,埋地燃气管道的腐蚀破坏比单一种类杂散电流的腐蚀影响要严重得多。
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| 关 键 词： | 杂散电流 电化学腐蚀 直交混流 埋地燃气管道 |
Lab Research of Dc & Ac Stray Current for the Failure Effect of the Gas Pipelines Buried Underground |
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| DING Hai-tao,LI Long-jiang,JIANG Ming-he,GUO Zhi-wei,BAI Hong-lei.Lab Research of Dc & Ac Stray Current for the Failure Effect of the Gas Pipelines Buried Underground[J].Guizhou Chemical Industry,2010,35(5):9-12. |
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| Authors: | DING Hai-tao LI Long-jiang JIANG Ming-he GUO Zhi-wei BAI Hong-lei |
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| Affiliation: | 1,2) (1.Guizhou University 2.CuiZhou Key Laboratory of Comprehensive Utilization of Non-metallic mineral resources) |
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| Abstract: | Through the similarity theory this paper moved the environment which the gas pipelines buried underground were under the influence of dc ac to the laboratory.Firstly introduces dc ac stray current concept, sources,harm and corrosion mechanism,and then the physical and chemical properties of the experimental soil are analyzed,the experimental principle is introduced,after that,the infection of experiment research under dc ac stray current combined action is made.It show that,under dc ac stray current combined action,the corrosion sanfressung of the gas pipelines buried underground are much more serious than a single variety of stray current infection. |
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| Keywords: | Stray current Electrochemical corrosion DC ＆ AC Gas pipelines buried underground |
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