| 国产300MW汽轮机4号轴承不稳定振动问题研究 |
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| 引用本文： | 晋风华,李录平,胡幼平,张国忠,唐月清,徐利东,甘伏泉.国产300MW汽轮机4号轴承不稳定振动问题研究[J].汽轮机技术,2006,48(5):376-378,382. |
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| 作者姓名： | 晋风华 李录平 胡幼平 张国忠 唐月清 徐利东 甘伏泉 |
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| 作者单位： | 1. 长沙理工大学,长沙,410077
2. 湖南湘潭电厂,湘潭,411100 |
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| 摘 要： | 在对国产300MW汽轮机低压转子与轴承系统的结构特点分析基础上,结合大量现场试验研究,分析了300MW汽轮机4号轴承不稳定振动的特点。主要从真空变化、轴封蒸汽参数变化以及负荷、轴承标高等的变化对4号轴承不稳定振动的影响加以分析,总结了引起4号轴承不稳定振动的原因,并提出了控制4号轴承不稳定振动的运行与维护措施。
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| 关 键 词： | 300MW汽轮机组 低压转子 4号轴承 不稳定振动 |
| 文章编号： | 1001-5884（2006）05-0376-03 |
| 收稿时间： | 2005-10-11 |
| 修稿时间： | 2005-10-11 |
Disquisition on the Problems of No. 4 Rotor - Bearing Unstable Vibration of Domestic 300MW Turbine Units |
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| JIN Feng-hua,LI Lu-ping,HU You-ping,ZHANG Guo-zhong,TANG Yue-qing,XU Li-dong,GAN Fu-quan.Disquisition on the Problems of No. 4 Rotor - Bearing Unstable Vibration of Domestic 300MW Turbine Units[J].Turbine Technology,2006,48(5):376-378,382. |
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| Authors: | JIN Feng-hua LI Lu-ping HU You-ping ZHANG Guo-zhong TANG Yue-qing XU Li-dong GAN Fu-quan |
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| Abstract: | In this disquisition, on the basis of the analysis of the structure characteristic of Lp rotor and bearing system of domestie 300MW turbine units, the characteristic of No. 4 rotor - bearing unstable vibration of 300MW turbine units is analyzed combined with a great deal of local test. The analysis of the influence on the unstable vibration is concentrated on the change of the vacuum ,gland seal steam parameters ,load and the elevation of the bearing. At the same time the origins of the unstable vibration of No. 4 rotor-bearing is summarized and relevant measures for running and maintenance to control the unstable vibration is also put forward. |
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| Keywords: | 300MW turbine units LP rotor No 4 rotor-bearing unstable vibration |
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