浙江电力
浙江電力
절강전력
Zhejiang Electric Power
2015年
11期
8-11
,共4页
李卫军%吴文健%蔡文方%应光耀
李衛軍%吳文健%蔡文方%應光耀
리위군%오문건%채문방%응광요
轴向排气%汽轮机%瓦振%支撑刚度%动平衡
軸嚮排氣%汽輪機%瓦振%支撐剛度%動平衡
축향배기%기륜궤%와진%지탱강도%동평형
axial steam exhaust%steam turbine%bearing vibration%support stiffness%dynamic balance
某发电厂2号机组采用轴向排气式汽轮机，在基建调试阶段出现了轴振及1号瓦振大等异常振动。通过试验及分析，主要原因是汽轮机排汽端轴瓦支撑刚度低、转子动不平衡，提出了加固轴瓦支撑和轴系动平衡相结合的处理方法，彻底解决了该振动问题。
某髮電廠2號機組採用軸嚮排氣式汽輪機，在基建調試階段齣現瞭軸振及1號瓦振大等異常振動。通過試驗及分析，主要原因是汽輪機排汽耑軸瓦支撐剛度低、轉子動不平衡，提齣瞭加固軸瓦支撐和軸繫動平衡相結閤的處理方法，徹底解決瞭該振動問題。
모발전엄2호궤조채용축향배기식기륜궤，재기건조시계단출현료축진급1호와진대등이상진동。통과시험급분석，주요원인시기륜궤배기단축와지탱강도저、전자동불평형，제출료가고축와지탱화축계동평형상결합적처리방법，철저해결료해진동문제。
Axial exhaust steam turbine is applied in No.2 generating units in a power plant. Abnormal vibra-tion of shafting and No.1 bearing happened during capital construction and commissioning. It is analyzed through test that the reasons are lower stiffness of bearing at steam exhaust end and rotor unbalance. The pa-per suggests reinforcing bearing support and dynamic shafting balance to thoroughly eliminate the vibration.
