三支撑660MW机组现场动平衡分析
Analysis on Field Dynamic Balance of 660 MW Unit with a Three-support Structure
王保华 1徐天宇2
作者信息
- 1. 淮北申皖发电有限公司,安徽 淮北 235000
- 2. 国网安徽省电力有限公司电力科学研究院,安徽 合肥 230022
- 折叠
摘要
对某电厂三支撑660 MW机组现场动平衡案例进行详细分析,通过测量机组轴振幅大小,发现轴振幅超标,且振动主要为一倍频振动分量.结合现场实际分析轴振幅超标原因,判断是转子不平衡导致振幅过大,并通过加重的方式来降低机组轴振幅,取得了较好的效果.
Abstract
A detailed analysis is carried out on a field dynamic balance of the 660 MW unit of a power plant such that the axial amplitude of vibration are found exceeding the standard and the vibration is mainly the one-time-frequency vibration component by measuring the axial amplitude of the unit.Combined with the actual analysis on the causes of the axial amplitude exceeding the standard,it is judged that the rotor imbalance leads to excessive amplitude,and the axial amplitude of the unit is reduced by adding heavy loads with a favorable effect.
关键词
三支撑/一倍频振动分量/现场动平衡/汽轮机轴振Key words
three supports/one-time-frequency vibration component/field dynamic balance/shaft vibration of steam turbine引用本文复制引用
出版年
2024
NETL
NSTL
万方数据