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往复式骨架油封温度场的动态分析.docx

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往复式骨架油封温度场的动态分析 Title:DynamicAnalysisofTemperatureDistributioninReciprocatingSkeletonOilSeals Abstract: Reciprocatingskeletonoilsealsplayanessentialroleinpreventingtheleakageoflubricatingoilandexternalcontaminantsinvariousrotarymachinery.Thesesealsmustwithstanddynamicoperatingconditionsthatinvolvecomplicatedtemperaturedistributions.Understandingthedynamicbehaviorofthetemperaturefieldinreciprocatingskeletonoilsealsiscrucialfortheirefficientdesignandreliableoperation.Thispaperaimstoinvestigatethedynamictemperaturedistributioninreciprocatingskeletonoilsealsandanalyzethefactorsaffectingthethermalperformance. 1.Introduction Reciprocatingskeletonoilsealsarewidelyusedinvariousindustries,includingautomotive,manufacturing,andpowergeneration.Theyaretypicallyinstalledinthehousingboreofrotatingequipment,suchaspumps,compressors,andengines.Theeffectivesealingperformanceofthesesealsreliesontheirabilitytowithstanddynamicconditions,includingtemperaturevariationsduringreciprocatingmotion.Therefore,itisessentialtoanalyzethedynamictemperaturedistributionwithintheseals. 2.FactorsAffectingTemperatureDistribution Thefactorsinfluencingthetemperaturedistributioninreciprocatingskeletonoilsealscanbeclassifiedintointernalandexternalfactors.Internalfactorsincludeoperatingconditions,suchasspeed,pressure,andlubricatingoilproperties.Externalfactorscompriseambienttemperature,heattransferbetweenthesealandthesurroundingenvironment,andthermalconductivityofthesealmaterials.Thissectionprovidesanin-depthdiscussionofthesefactorsandtheirinfluenceonthetemperaturefield. 3.MathematicalModeling Toanalyzethedynamictemperaturedistributioninreciprocatingskeletonoilseals,amathematicalmodelbasedontheheatconductionequationisestablished.Themodelconsidersthetransientheatconductionprocesswithinthesealstructure,heattransferbetweenthesealandthehousingbore,andtheeffectsoffluidflowontheheattransfer.Boundaryconditions,includingheatgenerationduetofrictionandconvectionheattransferattheseal'ssurface,areincorporatedintothemodel