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요약정보
一起供热背压机组转子弯曲事故的分析与处理 / Fault Analysis and Treatment of Rotor Bending on a Back Pressure Unit for Heating
Resource Type
Academic Journal
Authors
蔡文方
;
匡萃杰
;
乔红宝
;
钱林锋
;
蒲泽敏
;
李卫军
;
CAI Wenfang
;
KUANG Cuijie
;
QIAO Hongbao
;
QING Linfeng
;
PU Zemin
;
LI Weijun
Source
浙江电力 / Zhejiang Electric Power
. 41(2):92-97
Subject
动静碰磨;转子弯曲;背压;膨胀;积水
Language
Chinese
ISSN
1007-1881
Online Access
Find it @ DONGA
초록
介绍一台供热背压机组振动快速爬升致使机组跳机的故障过程,现场根据振动及偏心数据分析判断机组发生了严重动静碰磨,且转子塑性弯曲.揭缸后发现转子前汽封、叶顶及持环动静碰磨严重,转子返厂测得最大弯曲量达240μm.事故分析表明故障主要原因是:转子基建安装不够精细为故障埋下隐患;冷态启动过程中缸体膨胀不均,导致动静碰磨引发转子弯曲;停机过程中轴封回汽漏至缸内冷凝成积水,进一步导致转子塑性变形.在转子返厂处理后,现场通过更换汽封齿、调整动静部件间隙、优化机组启动曲线等措施,有效控制了动静碰磨故障,机组顺利完成试运行.
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