| 大型立式变频凝泵某转速下振动大原因分析处理 |
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| 引用本文： | 段学友,张秉权,周菁. 大型立式变频凝泵某转速下振动大原因分析处理[J]. 电站系统工程, 2012, 0(5): 51-52,54 |
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| 作者姓名： | 段学友 张秉权 周菁 |
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| 作者单位： | 内蒙古电力科学研究院;北京京能国际能源股份有限公司 |
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| 摘 要： | 某330 MW机组凝泵采用变频调节控制方式,在频率39 Hz时电机端振动达200μm,严重超国家标准。经分析排除了联轴器松动、轴承缺陷、转子质量不平衡等因素,认为振动大主要由共振原因引起。应用动平衡方法处理,解决了电厂多次检修未果的问题,为类似故障处理提供了处理方法。
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| 关 键 词： | 立式凝泵 变频 频率 振动 共振 |
Vibration Analysis and Treatment of Large Vertical Variable-Frequency Condensate Pump at Certain Speed |
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| DUAN Xue-you,ZHANG Bing-quan,ZHOU Jing. Vibration Analysis and Treatment of Large Vertical Variable-Frequency Condensate Pump at Certain Speed[J]. Power System Engineering, 2012, 0(5): 51-52,54 |
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| Authors: | DUAN Xue-you ZHANG Bing-quan ZHOU Jing |
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| Affiliation: | DUAN Xue-you,ZHANG Bing-quan,ZHOU Jing |
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| Abstract: | A 330 MW unit condensate pump works in variable-frequency control mode.At the frequency 39 Hz,the vibration of the motor side reaches 200μm that is severely above the national standard.After analysis the causes,loose coupling,defective bearing and rotor mass unbalance are excluded.Therefore,it is concluded that the big vibration is caused by resonance.Applying dynamic balance test,the engineer resolved the problem,which cannot be solved in the overhaul.Thus,the article put forward a solving method for the similar breakdowns of electric power plant. |
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| Keywords: | vertical condensate pump variable-frequency frequency vibration resonance |
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