330 MW机组危急遮断器存在的问题分析及对策

华电技术 ›› 2011, Vol. 33 ›› Issue (4): 49-51.

330 MW机组危急遮断器存在的问题分析及对策

魏小宝1，单洪亮2

1.国核工程有限公司，上海 200233；2.河南第二火电建设公司，河南郑州 450051

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-04-25 发布日期:2011-04-25

Analysis on problems existed in emergency governor of 330 MW unit and countermeasures

WEI Xiaobao1，SHAN Hongliang2

1.State Nuclear Power Engineering Corporation Limited, Shanghai 200233, China; 2.Henan Second Thermal Power Construction Company, Zhengzhou 450051, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-04-25 Published:2011-04-25

摘要/Abstract

摘要： 某电厂安装的330 MW机组在调试中发现危急遮断器装置的撑钩有时不能复位，经过分析找到了不能使撑钩复位的原因是撑钩处安装的平列双撑弹簧扭矩不足，通过增加该弹簧的扭矩解决了撑钩不能复位的问题。

关键词: 危急遮断器, 复位, 平列双撑弹簧, 扭矩, 扭转变形角

Abstract: In debugging of the 330 MW unit of a power plant, it was found that the stay hook of the emergency governor can not reset sometimes. According to analysis, the reason of the defect mentioned above is that the moment of torsion of parallelarranged doublesupported springs installed in location near the stay hook is insufficient. The moment of torsion of the springs was increased by some means, and the problem of stay hook reset was solved.

Key words: emergency governor, reset, parallel-arranged double-support springs, moment of torsion, torsional deformation angle

魏小宝;单洪亮. 330 MW机组危急遮断器存在的问题分析及对策[J]. 华电技术, 2011, 33(4): 49-51.

WEI Xiaobao;SHAN Hongliang. Analysis on problems existed in emergency governor of 330 MW unit and countermeasures[J]. Huadian Technology, 2011, 33(4): 49-51.

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