LabView与OPC数据交换替代DP通讯模块的运用.pdf

EquipmentManufacturingTechnologyNo．5，2014 TheCharacteristicandFailureAnalysisofLMFAirCompressor YANYong，BAIYong-guang (SinopecPetroleumEngineeringGeophysicsLtd．JiangsuBranch，YangzhouJiangsu225007，China) Abstract：LMFaircompressorisalargedisplacementandhihg pressureaircompressorgroupusedinseismic exploration．Thestabilityoftheaircompressor isoneofhte prerequisitesforensuring geophysicalexploration equipmentworkingproperly．Soknowingmoreabouttheiroperatingprincipleandthecausesof commonfailureshelps toanalyzethereasonof failuresandtroubleshooting．Afterintroducinghtestructurenadoperatingprincipleand technicalpraameters，TheaomlTlOnfailuresnadcausesofaircompressorgroupispointedout，somefailuresnadsolving measuresofLMF 21s／138-207D aircompressorrae listed，to providereferenceofrnaalyzinghtefailureofair compressor· Keywords：LMFaircompressor；operatingprinciple；technicalpraameters；faultnaalysis (上接第 36页) TheuseofLabView DataExchangewithOPC InsteadofDPCommunicationModule ‘ LIKai-ping，FANYi-ping (ZhuzhouCSRTimesElectricCo．，Ltd．，ZhuzhouHunna 412001，China) Abstract：Whenweuseprofibus-DPbusitisfrequentwiththePLCcontrolsystem．Oncehtecommunicationmoduleof DPmaster—slavestationfails，htewholecontrolsystem willoutofconrto1．Thispapermainlyintroducesamethodof usingLabView nadOPC serverinsteadofDPslavestation，Whichthecontrolsystem carlstillworkproperly，evenif master-slavestationmoduleismissing． Keywords：controlsystem；Profibus—-DP；LabView；OPCserver (上接第43页) Analyzingthe20MW Turbine1‘#BearingPadforDamageReasonsandTroubleShooting WANGLing-hu，LIYu-hua (GuangxiNanningPhoenixPaperCo．，Ltd．，Nanning530031，China) Abstract：Innormaloperation，20MW turbogeneratorshaftvibrationexceedhtestnadardphenomenonofstema turbine， thel#bearingsraeoftendamaged，thr