| 地下输油管线腐蚀势态的灰色评估 |
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| 引用本文： | 董泽华,罗逸,郑家遷,李铁成. 地下输油管线腐蚀势态的灰色评估[J]. 华中科技大学学报(自然科学版), 2001, 29(1): 93-95 |
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| 作者姓名： | 董泽华 罗逸 郑家遷 李铁成 |
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| 作者单位： | 1. 华中科技大学化学系
2. 东北输油管理局 |
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| 基金项目： | 中国石油天然气总公司基金资助项目! (99 10 5 ) |
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| 摘 要： | 根据表征输油管线运行状态的四项参数即管地电位、阴极保护电位、土壤腐蚀性以及防腐层电阻建立了统计分布模型，并对新才管线数据分布模型的均值和方差进行了显著性水平检验。应用灰色决策（灰靶）理论对管线的腐蚀与防护综合势态和运行风险进行了分级和评估，从而为减少管道腐蚀事故的发生和管道的预防性能维修提供依据。
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| 关 键 词： | 输油管线 腐蚀失效 统计分析 灰色决策 管道电位 阴极保护电位 土壤腐蚀性 |
| 文章编号： | 1000-8616(2001)01-0093-03 |
| 修稿时间： | 2000-06-02 |
Grey Evaluation of Corrosive Status of Underground Oil Pipelines |
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| Dong Zehua,Luo Yi,Zheng Jiashen,Li Tiecheng. Grey Evaluation of Corrosive Status of Underground Oil Pipelines[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2001, 29(1): 93-95 |
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| Authors: | Dong Zehua Luo Yi Zheng Jiashen Li Tiecheng |
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| Abstract: | The statistical maths analysis and sample distribution assumption tests of four factors, i.e., pipe earth potential (PEP), cathodically protected potential (CPP), corrosion current density (CCD) of 16Mn mild steel in soil and coating resistance (CR) have been accomplished. The CCD and CPP have the same normal distribution in both new and old pipelines. In contrast, the PEP and CR are submitted to log normal distribution. A gray target identification model is used to evaluate and to classify the comprehensive corrosion and protection status of the oil pipelines. The result indicates that the classification is useful for the preventive repair on pipelines. |
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| Keywords: | oil pipeline corrosion invalidation statistics analysis gray identification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
