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1、華東理工大學過程裝備與系統(tǒng)(雙語)精品文檔Chapter1IntroductiontoProcessEquipmentKeyTermsAxialbearings軸向軸承:devicesdesignedtopreventback-and-forthmovementofashaft;alsocalledthrustbearings.Boiler鍋爐:atypeoffiredfurnaceusedtoboilwaterandproducesteam;alsoknownasasteamgenerator.Co
2、mpressors壓縮機:mechanicaldevicesdesignedtoaccelerateorcompressgases;classifiedaspositivedisplacementordynamic.Coupling聯(lián)軸器:adevicethatattachesthedriveshaftofamotororsteamturbinetoapump,compressor,orgenerator.Driver:adevicedesignedtoproviderotationalenergyt
3、odrivenequipment.Heatexchanger換熱器:anenergy-transferdevicedesignedtotransferenergyinformofheatfromahotterfluidtoacoolerfluidwithoutphysicalcontactbetweenthetwofluids.Pumps泵:devicesdesignedtomoveliquidsfromoneplacetoanother;classifiedaspositivedisplacemen
4、tordynamic.Reactor反應器:adeviceusedtocombinerawmaterials,heat,pressure,andcatalystsintherightproportionstoformchemicalbondsthatcreatenewproducts.Steamturbine蒸汽輪機:anenergy-conversiondevicethatconvertssteamenergy(kineticenergy)tousefulmechanicalenergy;useda
5、sdriverstoturnpumps,compressors,andelectricgenerators.Valve閥:adeviceusedtostop,start,restrict(throttle),ordirecttheflowoffluids.Questions:1.IdentifythepurposeofasteamturbineThepurposeofasteamturbineistoconvertskineticenergytousefulmechanicalenergyinorde
6、rtodrivepumps,compressors,andelectricgenerators.(P9)2.Describetheimportanceofequipmentlubrication.Lubricationprotectsthemovingpartsofequipment,helpsremoveheatgeneratedandprovidesafluidbarrierbetweenthemetalspartstoreducefriction,thusensuringthegoodopera
7、tionofprocessequipment.(P10)3.Explainthepurposeofbearingsandseals.Bearingspreventup-and-downandside-to-sideorback-and-forthmovementofarotatingshaft.Sealspreventleakagebetweeninternalcompartmentsinarotatingpieceofequipment.(P10)Rotaryequipmentusessealsan
8、dbearingstomaintainoperationintegrity.(P20)4.Whatisthedifferencebetweenrotaryandstationaryequipment?Rotaryequipmentischaracterizedbyacircularmovementandiscomposedofadriver,aconnector,andthedrivenequipment.(P4)However,stationaryeq
