状态监测与故障诊断系统在大型化工机组上的应用

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1、状态监测与故障诊断系统在大型化工机组上的应用大连理工大学专业学位硕士学位论文ApplicationofConditionMonitoringandFaultDiagnosisSystemsonLargeChemicalUnitsAbstractEquipmentconditionmonitoringandfaultdiagnosistechnologiesareappliedtolearnandunderstandtheknowledgeofequipmentinaspectsofthestate，normalityorabnormity，earlyd

2、etectionoffaultandcause，andfaultforecasts．Currently，mostofourenterprisesadoptthecombinationsofBreakdownMaintenance(ab．BM)andPreventiveMaintenance(ab．PM)．Moreover，BMoftenresultsinhugeeconomiclossesandPMarenotsolvedthecontradictionbetween”Lackofmaintenance”and”Excessivemaintenance

3、”．Inthisbackground．equipmentconditionmonitoringandfaultdiagnosistechnologieshavebeendeveloped．Theanalysisofapplicationtechniquesofconditionmonitoringandfaultdiagnosissystemsinlargefertilizerplantshavebeenstudiedinthispaper．Firstly，thispaperintroducedthetheoriesandtechnologiesass

4、ociatedwithcentrifugalcompressorsandsteamturbines，andanalyzedtheobjectsmonitoredanddiagnosedbythesystem．Secondly，theconditionmonitoringtheoriesandtechnologiesareintroduced；meanwhile，themainaspectsaboutBentlySystemlunitconditionmonitoringsystem，includingstructuresconstitute，hardw

5、arestructure，constitutesofsoftwareareintroduced．Atlast，thetreatmentcasesofallpreviousfaultofsynthesisgascompressorareanalyzedcombinedwiththeon·sitecommissioningandoperationalexperiences．Theconditionmonitoringandfaultdiagnosissystemsintroducedinthispaperhaverunfortenyears。Theresu

6、ltsofconditionmonitoringandfaultdiagnosisofunitshaveprovidedeffectivesupportstotheoperationstabilitiesoftheequipments．Keywords：ConditionMonitoring；FaultDiagnosis；LargeChemicalUnits．．111．．状态监测与故障诊断系统在大型化工机组上的应用大连理工大学专业学位硕士学位论文目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IAbstract⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯。⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．III引言⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11离心压缩机及其驱动透平⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．1离心式压缩机⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．1．1离心式压缩机的组成和工作原理⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．1．2离心式压缩机的性能参数⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．2驱动透平(汽轮机)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71．2．1蒸汽透平的组成和基本工作原理⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7

8、1．2．2蒸汽透平的性能参数⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82状态监测系统的相关理论和