一起1000MW机组汽轮机轴系振动异常的诊断及处理  

Diagnosis and Treatment of Abnormal Vibration of a 1000MW Turbine Shafting System

作　　者：李玮 赵凯 刘文彦 朱明江 LI Wei;ZHAO Kai;LIU Wen-yan(Datang Dongying Power Generation Co.,Ltd.;Datang Northeast Electric Power Test Research Institute)

机构地区：[1]大唐东营发电有限公司,山东东营257000 [2]大唐东北电力试验研究院有限公司

出　　处：《电站系统工程》2021年第6期58-60,共3页Power System Engineering

摘　　要：某厂汽轮机为单轴六缸六排汽超超临界中间二次再热凝汽式汽轮机,该机组在启动中出现振动异常,通过判断分析轴瓦存在损伤,经过检查发现,轴瓦存在损伤,对轴瓦进行修复后再次启动,机组低压转子振动超过报警值125μm,通过频谱分析轴系不平衡分量较大,遂进行动平衡试验,并将低压转子振动降至合格范围内。A factory six exhaust steam turbine for uniaxial six-cylinder ultra-supercritical middle to warm secondary condensing steam turbine abnormal vibration of the unit’s start,through the judgment analysis exist bearing damage,after inspection,found that exist bearing damage,after repair was carried out on the bearing shell fired again,unit of low pressure rotor vibration alarm value of more than 125 microns,through the spectrum analysis of shafting unbalance weight is bigger,then into the dynamic balance test,and the low pressure rotor vibration to qualified range.

关 键 词：轴承损伤 汽轮机振动 汽轮机动平衡 摩擦 

分 类 号：TH133[机械工程—机械制造及自动化] TP183[自动化与计算机技术—控制理论与控制工程]