广东电力
廣東電力
엄동전력
GUANGDONG ELECTRIC POWER
2015年
5期
36-39
,共4页
汽轮机%轴承座%振动%刚度%加固
汽輪機%軸承座%振動%剛度%加固
기륜궤%축승좌%진동%강도%가고
steam turbine%bearing pedestal%vibration%stiffness%reinforcement
为解决某厂330 MW 机组在运行中存在的6号、7号轴承振动大且长期超标的问题，应用有限元建模分析，对汽轮机基础Ⅳ框架的梁柱和相关轴承座进行受力分析，结果表明轴承振动异常的主要原因是汽轮机基础Ⅳ框架轴向刚度不够。为此，提出对6号、7号轴承所在的轴承座基础Ⅳ框架进行加固的方案，该方案实施后取得了良好的效果，确保了机组的安全稳定运行。
為解決某廠330 MW 機組在運行中存在的6號、7號軸承振動大且長期超標的問題，應用有限元建模分析，對汽輪機基礎Ⅳ框架的樑柱和相關軸承座進行受力分析，結果錶明軸承振動異常的主要原因是汽輪機基礎Ⅳ框架軸嚮剛度不夠。為此，提齣對6號、7號軸承所在的軸承座基礎Ⅳ框架進行加固的方案，該方案實施後取得瞭良好的效果，確保瞭機組的安全穩定運行。
위해결모엄330 MW 궤조재운행중존재적6호、7호축승진동대차장기초표적문제，응용유한원건모분석，대기륜궤기출Ⅳ광가적량주화상관축승좌진행수력분석，결과표명축승진동이상적주요원인시기륜궤기출Ⅳ광가축향강도불구。위차，제출대6호、7호축승소재적축승좌기출Ⅳ광가진행가고적방안，해방안실시후취득료량호적효과，학보료궤조적안전은정운행。
In order to solve problems of large vibration and long-term over-standard of vibration of No.6 and No.7 bear-ings of 330 MW unit in some power plant in operation,finite element modeling was applied for force analysis on beams of basic Ⅳ frame of the steam turbine and its related bearing pedestal.The results indicated that the main reason for abnormal vibration of the bearing was insufficient axial stiffness of the basic Ⅳ frame of the steam turbine.Therefore,a scheme of reinforcing basic Ⅳ frames of bearing pedestals of No.6 and No.7 bearings was proposed.It was proved that this scheme could produce good effects and ensure safe and stable operation of the unit.
