张振兴,李建勇,余成长,唐璐
ZHANG Zhen-xing1,LI Jian-yong2,YU Cheng-zhang2,TANG Lu2(1.Jiangsu Guohua Chengjiagang Power Generation Co.

• 1:江苏国华陈家港发电有限公司
• 2:苏州热工研究院

摘要(Abstract)：

通过现场观察和测量,发现某1 000 MW超超临界机组定子冷却水管道存在明显振动现象。分析了管道振动的原因,结合模态分析,提出了相应的减振措施,大大提高了管道一阶固有频率,有效地消除定子冷却水管道振动,确保了机组安全运行。
Obvious vibration of stator cooling water pipe was found in a 1 000 MW ultra-supercritical unit in a power plant in Zhejiang by field inspection and measurement.The cause and modal analysis is carried out.The vibration reduction measures are proposed.It greatly increases the first-order natural frequency of the pipe and eliminates the vibration effectively to ensure the safe operation of the unit.

关键词(KeyWords)： 定子冷却水;模态分析;固有频率;振动治理
stator cooling water;modal analysis;natural frequency;vibration treatment

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张振兴,李建勇,余成长,唐璐
ZHANG Zhen-xing1,LI Jian-yong2,YU Cheng-zhang2,TANG Lu2(1.Jiangsu Guohua Chengjiagang Power Generation Co.

DOI: 10.19585/j.zjdl.2011.07.013

参考文献(References)：

• DL/T 5054-1996火力发电厂汽水管道设计技术规定[S].北京:中国电力出版社出版,1996.
• 张广成.电站高温高压蒸汽大管道振动治理[J].振动工程学报,2004,17(2):1131-1133.