亚临界200MW机组振动分析及处理  

Analysis on Vibration of Subcritical Unit of 200 MW and Solutions

作　　者：呼志广 

机构地区：[1]神华神东电力有限责任公司,陕西神木719300

出　　处：《电力学报》2011年第2期170-172,共3页Journal of Electric Power

摘　　要：介绍了某厂6^#机组通流部分改造后,高压转子轴振随负荷变化而大幅变化,变化范围在20-200μm,由于高压转子的轴振不稳定,1^#下轴承乌金多次发生严重碎裂现象,通过变负荷试验,对高压转子的轴振进行频谱测试分析,找出了振动随负荷变化的原因是高中压对轮螺栓受力不均匀,提出了重新绞螺栓孔配制螺栓的处理方案,实施后取得了良好效果。This thesis mainly introduces after the retrofit of the flow passage of No.6 Unit of one factory,high pressure rotor shaft vibration is greatly changed with the change of load.The vibration range is from 20μm-200μm.Due to the instability of shaft vibration of high pressure rotor,No.1 lower bearing happens many times serious fragmentation phenomenon.Through the test of load variation,we carried out the spectral test analysis for the shaft vibration of the high pressure rotor,found out the vibration with the change of load is caused by load unbalance of high and middle pressure to the bolt,and pointed out the treatment scheme of compounding the bolt hole through wringing the bolt hole.The thesis also shows the good effect after the implementation.

关 键 词：汽轮发电机组 亚临界 200MW 轴振 联轴器 螺栓 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]