广东电力2016，Vol.29Issue(1)：22-26,5.DOI:10.3969/j.issn.1007-290X.2016.01.005
CPR 1000技术核电机组高频振动故障诊断与处理
Fault Diagnosis and Processing on High Frequency Vibration of CPR1000 Nuclear Power Unit
杨毅 1高庆水 1张楚 1刘石 1杜胜磊 1李力1
作者信息
- 1. 广东电网有限责任公司电力科学研究院，广东 广州 510080
- 折叠
摘要
Abstract
In allusion to the problem of superstandard bearing vibration of steam turbine of CPR1000 half-speed nuclear pow-er unit in commissioning period which may cause high frequency with high range vibration amplitude fluctuation,experimen-tal analysis on vibration experiment before overhaul,mode testing in overhaul,identification on high frequency exciting force source,and so on is carried out to judge reason for high frequency vibration fault of the unit bearing vibration is un-steady resonance of bearing box cover caused by unsteady steam exciting force in No.3 steam pipe flowing through steam pipe and cylinder stator to the bearing box.According to fault diagnosis analysis results,it is proved to be able to greatly re-duce bearing vibration to fine level by optimizing open program and mode of steam regulating valve and changing state pa-rameters of gas flow in the pipe.In terms of transferring path of obstructing high frequency exciting force and selection for testing point position of bearing vibration,security of unit bearing vibration is evaluated and improvement scheme is pro-posed.关键词
核电机组/高频振动/振动试验/不稳定共振Key words
nuclear power unit/high frequency vibration/vibration experiment/unsteady resonance分类
机械制造引用本文复制引用
杨毅,高庆水,张楚,刘石,杜胜磊,李力..CPR 1000技术核电机组高频振动故障诊断与处理[J].广东电力,2016,29(1):22-26,5.
