| 外腐蚀直接评价在城市燃气管道的应用 |
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| 引用本文： | 周廷鹤,彭世尼,李帆.外腐蚀直接评价在城市燃气管道的应用[J].煤气与热力,2010,30(1):34-37. |
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| 作者姓名： | 周廷鹤 彭世尼 李帆 |
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| 作者单位： | 1. 港华投资有限公司,广东,深圳,518026
2. 重庆大学,城市建设与环境工程学院,重庆,400045 |
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| 摘 要： | 管道外腐蚀直接评价（ECDA）是进行城市燃气管道完整性管理的重要手段。论述了ECDA的4个基本步骤——预评价、间接检测、直接检测、后评价。结合华南某市中压燃气管网的实际情况，将ECDA应用于城市燃气管道实际工程中，取得了良好的效果并为管道的完整性管理提供可靠依据。
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| 关 键 词： | 城市燃气管道 外腐蚀直接评价 完整性管理 检测 外防腐层 阴极保护 |
Application of External Corrosion Direct Assessment to City Gas Pipeline |
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| ZHOU Ting-he,PENG Shi-ni,LI Fan.Application of External Corrosion Direct Assessment to City Gas Pipeline[J].Gas & Heat,2010,30(1):34-37. |
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| Authors: | ZHOU Ting-he PENG Shi-ni LI Fan |
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| Affiliation: | ZHOU Ting-he, PENG Shi-ni, LI Fan |
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| Abstract: | The external corrosion direct assessment （ECDA） is an important method for city gas pipeline integrity management （PIM）. The four basic process steps of ECDA including pre-assessment, indirect inspection, direct inspection and post-assessment are discussed. Combined with the actual situation of medium pressure gas network in a city of South China, the ECDA is applied to the actual project of city gas pipeline, and good results are achieved, which provides a reliable basis for PIM. |
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| Keywords: | city gas pipeline external corrosion direct assessment integrity management inspection external anticorrosive coating cathodic protection |
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