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300MW汽轮发电机组振动故障分析与处理

Hunan Electric Power(2010)

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Abstract
某厂4号汽轮发电机组(300MW)在调试期间先后出现了主汽门严密性试验时的突发性非稳定高幅振动及带负荷后的稳定性偏高振动。根据对振动测试的分析结果、相关设备检查以及现场解体检修,发现发电机密封瓦突发性的碰磨及轴颈处钢字码是造成2种截然不同的振动现象的根本原因,通过解决机组振动问题,使机组振动达到优良标准。
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