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为确保兰-成-渝输油管线安全运营,以往在检测外防腐层缺陷“点”方面做了大量细致的工作,然而还需要进一步分段从宏观控制角度评估外防腐层质量,为此需要选择一个在线测量“埋地管道防腐层绝缘电阻”的方法,实现定量、准确的评价防腐层好坏。本文论述了“埋地管道防腐层绝缘电阻”物理概念、量纲、定量水准,以及与埋地管道防腐层质量之间的定量关系,以便选择正确、有效检测方法,从而确保为管道维护提供可靠的决策依据。
In order to ensure the safe operation of Lan-Cheng-Yu oil pipeline, a great deal of meticulous work has been done in the past on the detection of outer coating defects. However, the quality of outer coating needs to be further evaluated in terms of macroscopic control Need to choose an online measurement “Buried pipeline insulation resistance ” method to achieve quantitative, accurate evaluation of the coating is good or bad. This paper discusses the physical concepts, dimensions, quantitative standards and the quantitative relationship with the quality of buried pipeline coatings in order to select the correct and effective detection methods to ensure that the pipeline maintenance Provide a reliable basis for decision-making.