| 汽流激振机理分析及某330MW汽轮机故障处理 |
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| 引用本文： | 姜广政,傅行军.汽流激振机理分析及某330MW汽轮机故障处理[J].江苏电机工程,2014(2):15-16,21. |
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| 作者姓名： | 姜广政 傅行军 |
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| 作者单位： | 东南大学火电机组振动国家工程研究中心,江苏南京210096 |
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| 摘 要： | 介绍了汽流激振故障发生的机理及特征。某330 MW汽轮机组在单阀带大负荷时,1瓦、2瓦出现较大的低频振动,结合阀门试验时的频谱图和汽流激振的机理进行分析,发现该机组故障为典型汽流激振,通过调整2瓦标高,解决了低频振动问题。
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| 关 键 词： | 汽流激振 失稳 轴系稳定性 轴承标高 |
Steam-exited Vibration Mechanism Analyzing and Fault Processing of One 330 MW Steam Turbine |
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| JIANG Guangzheng,FU Xingjun.Steam-exited Vibration Mechanism Analyzing and Fault Processing of One 330 MW Steam Turbine[J].Jiangsu Electrical Engineering,2014(2):15-16,21. |
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| Authors: | JIANG Guangzheng FU Xingjun |
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| Affiliation: | (National Engineering Research Center of Turbogenerator Vibration, Southeast University, Nanjing 210096, China ) |
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| Abstract: | The mechanism and characteristics of steam-exited vibration fault were discussed in this paper. At a high load, larger half-frequency vibration occurred in NO. 1 and NO. 2 bearing of one 330 MW steam turbine. Based on the further analysis on the frequency spectrum of valve test and the mechanism of steam-exited vibration, it was deduced that the vibration was caused by steam-exited vibration. By adjusting the elevation of NO. 2 beating, we solved the turbine vibration successfully. |
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| Keywords: | steam-exited vibration instability the shafting stability height of bearin |
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