华北电力大学科技学院本科毕业设计（论文）毕业设计(论文)汽轮机故障诊断技术系别动力工程专业班级学生姓名指导教师华北电力大学科技学院本科毕业设计（论文）汽轮机故障诊断技术摘要汽轮机是一种应用十分广泛的旋转式机械设备，主要作为驱动各种生产设备运转的原动机，因此其在工业生产中的地位不言而喻。随着现代工业的发展，汽轮机正向着大型化、高速化、自动化的方向发展，与其他生产设备之间的联系也越来越紧密。因此，一旦汽轮机发生故障而停止工作，将会导致整个生产过程的停滞，造成不可估量的经济损失。可见，机械故障诊断在工程实际中具有相当的意义，它甚至逐渐成为了一种单独的学科门类。本文从汽轮机这一大型设备出发。首先详细介绍了汽轮机故障诊断的历史，然后有分别介绍了汽轮机故障的分类情况和故障参数的主要分析方法，最后根据电厂的实际情况，设计了一个故障检测诊断系统，以说明在汽轮机故障诊断技术在实际应用中的具体原则。关键词:故障诊断；旋转机械；汽轮机I华北电力大学科技学院本科毕业设计（论文）TURBINEFAULTDIAGNOSISTECENOLOGYAbstractThesteamturbineisakindofrotatingmachinery,whichiswidelyused.Itismainlyusedastheprimemovertodriveallkindsofproductionequipment.Therefore,thepositionofthesteamturbineintheindustrialproductionisself-evident.Withthedevelopmentofmodernindustry,thesteamturbineisdevelopinginthedirectionoflargescale,highspeedandautomation,andtherelationbetweenthesteamturbineandotherproductionequipmentsismoreandmoreclose.Therefore,oncetheturbinefailsandstopsworking,itwillleadtothestagnationofthewholeproductionprocessandcauseincalculableeconomiclosses.Obviously,themechanicalfaultdiagnosishasthequitesignificanceintheengineeringpractice,itevenbecomesakindofindependentdisciplinecategorygradually.Thispaperstartsfromthelarge-scaleequipmentofsteamturbine.Firstintroducedthehistoryofthefaultdiagnosisofsteamturbine,andthenthemainanalysismethodswereintroducedtoturbinefaultclassificationandfaultparameters,accordingtotheactualsituationofthenuclearpowerplant,designedafaultdiagnosissystem,thespecificprinciplestoexplainintheturbinefaultdiagnosistechnologyinthepracticalapplication.KeyWords:Thesteamturbine;Faultdiagnosis;Rotatingmachinery2目录摘要......................................................................IAbstract....................................................................II第一章绪论.................................................................11.1汽轮机故障问题研究的意义...............................................11.2故障诊断技术的发展.....................................................11.3故障诊断技术的现状.....................................................2第二章汽轮机故障诊断的基本分析方法........................................32.1汽轮机故障分析概述.....................................................32.2振动诊断检测法.........................................................42.2.1振动信号的监测.......................................................42.2.2振动信号的分析.......................................................5第三章汽轮机主要故障的分类................................................133.1汽轮机故障概述........................................................133.2汽轮机振动基础........................................................143.2.1汽轮机振动的分类....................................................143.2.3转子临界转速对振动的影响............................................173.2.4汽轮机振动标准......................................................173.2.5小结..........................
