| 给水系统异常造成MFT 的事故分析 |
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| 引用本文： | 韩威,崔猛,郑志强,董建朋,韩法玲.给水系统异常造成MFT 的事故分析[J].电力建设,2011,32(3):99-101. |
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| 作者姓名： | 韩威 崔猛 郑志强 董建朋 韩法玲 |
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| 作者单位： | （1.河南电力试验研究院，郑州市，450052；2.西安科技大学电气工程与控制学院，西安市，710054） |
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| 摘 要： | 火力发电厂给水系统发生异常，将导致锅炉水冷壁缺水、锅炉干烧等重大事故。对几个给水系统异常造成主燃料跳闸（main fuel trip，MFT）的典型事故进行分析，并最终通过现场查验资料及排查控制回路等措施，确定了事故原因，为电厂排除了安全运行隐患。
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| 关 键 词： | 给水系统 主燃料跳闸（MFT） 绝缘故障 控制回路 误动 事故分析 |
Analysis of MFT Fault Caused by Abnormal Feed-water System |
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| HAN Wei,CUI Meng,ZHENG Zhiqiang,DONG Jianpeng,HAN Faling.Analysis of MFT Fault Caused by Abnormal Feed-water System[J].Electric Power Construction,2011,32(3):99-101. |
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| Authors: | HAN Wei CUI Meng ZHENG Zhiqiang DONG Jianpeng HAN Faling |
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| Affiliation: | 1. Henan Electrical Power Research Institute,Zhengzhou 450052,China; 2. School of Electrical Engineering & Control,Xi’an University of Science & Technology,Xi’an 710054,China) |
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| Abstract: | When feedwater system in a coal-fired plant works abnormally, such major accidents as"water shortage for water-cooled wall"and"dry-burning of boiler"may occur. This paper makes an analysis of the typical main fuel trip faults (MFT) caused by abnormal feedwater system in some power plants, and find out the causes of the accidents through site data check and control loop inspection, and help the power plant to eliminate the hidden troubles in time. |
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| Keywords: | feedwater system main fuel trip insulation fault control loop misoperation accident analysis |
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