旋转机械振动频谱中二倍频分量高故障分析及处理
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摘要
以内蒙古国华准格尔发电有限责任公司发生的2次旋转机械设备振动故障为例,通过对其振动频谱图中出现的二倍频分量进行分析,找到了设备发生振动的原因为旋转机械设备轴系存在严重不对中、联轴器弹性块磨损严重及设备存在共振。对此采取了对联轴器进行对轮找正、更换联轴器弹性块以及加固钢结构框架等措施,消除了机组事故隐患,机组恢复正常运行。
Based on Inner Mongolia Guohua Zhungeer Power Generation Co.,Ltd., taking two mechanical equipment vibration fault as an example, based on the vibration spectrum in figure 2x component perform causal analysis, find out the reason of the equipment vibration of rotating machinery equipment respectively of the shaft system exists serious coupling elastic block badly worn, and resonance equipment were discussed. For this reason, measures such as wheel alignment of the coupling, elastic block replacement of the coupling and reinforcement of the steel frame had been carried, through which the potential accident was eliminated and the normal operation of the unit was recovered.
Based on Inner Mongolia Guohua Zhungeer Power Generation Co.,Ltd., taking two mechanical equipment vibration fault as an example, based on the vibration spectrum in figure 2x component perform causal analysis, find out the reason of the equipment vibration of rotating machinery equipment respectively of the shaft system exists serious coupling elastic block badly worn, and resonance equipment were discussed. For this reason, measures such as wheel alignment of the coupling, elastic block replacement of the coupling and reinforcement of the steel frame had been carried, through which the potential accident was eliminated and the normal operation of the unit was recovered.
引文
[1]黄志坚.机械设备振动故障监测与诊断[M].北京:化学工业出版社,2010:293-295.
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[6]王可.600 MW机组冷态启动振动大原因分析和处理[J].电力大数据,2017,20(9):71-73.
[7]钱国超,邹德旭,于虹,等.振动频谱特征值在诊断变压器故障中的应用[J].云南电力技术,2017,45(2):79-83.
[2]杨国安.旋转机械故障诊断实用技术[M].北京:中国石化出版社,2012:35-49.
[3]中国国家标准化管理委员会.在非旋转部件上测量和评价机器的机械振动:GB/T 6075.3—2011.第3部分[S].北京:中国标准出版社,2011.
[4]本特利(Donald E.Bently).旋转机械诊断技术[M].北京:机械工业出版社,2014:8-9.
[5]内蒙古国华准格尔发电有限责任公司.转动设备振动评价管理标准:GHFD-10-TB-01(试行)[S].鄂尔多斯:内蒙古国华准格尔发电有限责任公司,2011.
[6]王可.600 MW机组冷态启动振动大原因分析和处理[J].电力大数据,2017,20(9):71-73.
[7]钱国超,邹德旭,于虹,等.振动频谱特征值在诊断变压器故障中的应用[J].云南电力技术,2017,45(2):79-83.