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外文翻译填料函泄漏的原因分析及对策.doc外文翻译填料函泄漏的原因分析及对策.doc -- 5 元

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编号:201311171414376500    大小:36.50KB    格式:DOC    上传时间:2013-11-17
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Thepackingboxdivulgesreasonanalysisandcountermeasureabstract:Reasonthepackingboxdivulgeswhichthroughtheanalysispetrochemistryenterpriseeachkindofadjustmentvalvein,aswellastheadjustmentvalvedivulgestheharmwhichbringstotheenvironmentandtheproduction,proposedsomesolutioncountermeasures.GuanJianci:Adjuststhevalve;Thepackingboxdivulges;Seal;Countermeasure1forewordadjustmentvalveisthepetroleumchemicalindustryrefinesoilintheinstallmenttheessentialpart,itsuseadjustmentvalvetypemany,quantitybig,inthechemicalproductionmediummanyiscorrosivenessstrong,virulentorisflammableexplosive,whenadjuststhevalvedivulges,notonlycancreatetheseriousrawmaterial,theenergyandtheproductwaste,moreoveralsohastheseriousinfluencetotheenvironment,evencausestheserioussecurityaccident..Therefore,wehavethenecessityalsotohavetotakeinthepetroleumchemicalindustryproductionprocesstoadjustthevalvetodivulgethequestion.Undercausesthereasononthepetroleumchemicalindustryinstallmentinwhichtheadjustmentvalvepackingboxdivulgesaswellaspreventeddivulgesthecountermeasure,themethodwiththeeliminationmakesthekeydiscussion.2adjustmentsvalvespackingboxdivulgesthereasonanalysisadjustmentvalvedivulgesdividesintotwokinds,namelyoutsidedivulgeswiththeinteriordivulges.Inthemajoritysituation,outsidedivulgestheconsequencewhichcreates,oftendivulgescomparedtotheinteriorseriously.Intheindustrialproduction,adjuststhevalveoutsidetoleaknotonlycreatestherawmaterialandtheenergywaste,butalsocandirectlypollutetheenvironment,evencausesthefire,thedetonation,ispoisonedandsoontheharmsafetysignificantaccident,thenationaleconomycreatestheheavylossfor.Outsidebutthepackingboxdivulgesalsobelongsleaks.Thepackingboxdivulgesreason:Thepackingboxbythestuffingbox,thepadding,thepaddingpadaswellasthepaddingcontractstheorganizationandsoontobecomposed.Thestuffingboxsetsonthevalvebodyorthevalvecover,playsholdsthepaddingtherole.Thepaddingpadsetstothestuffingboxbase,playsthestrutpaddingrole.Thepaddingdividesthesoftnaturesealingcompoundandtakesshapethepaddingtwokinds.Takesshapethepaddingtaketheelasticmaterialqualityastherawmaterial,usesthemouldpressingtotakeshapeortheturningprocessingmakeseachkindofjoinercurtainunder,compares,takesshapethepaddingstructurecompact,sealingpropertygood,theserviceabilityisstronger.Themediumdivulgesinthesealingcompoundplace,thereasonbecomeslesscrowded,thesealingcompoundforthepaddingglandisnotstrict,thepaddingvarietyorthequalitydoesnotconformtotherequirement,thepaddinggetsolderorbythevalveleverattrition.3adjuststhelosswhichthevalvedivulgescreatesDivulgingcauseswhichbytheabovesituation,createstheeconomiclossandfurtherbecausethemediumcharacteristicdifferenthasdifferentlytotheenvironmentpollutiondegree.Ifisthegasmedium,thenveryeasilyproliferatesthedisseminationintheair,itspollutionradiuscanbebigger.Theliquidmediumcanthroughhavethepollutiontothegroundseepage,alsopossiblyortheexileexpelsfloodwatertheditchthroughtheopenditch,pollutestheriversandstreamslakeandotherenvironment.FormerSovietUnion'snuclearpowerstationbecauseadjuststhevalvethequestiontobreedtheunprecedenteddisaster,notonlyhascausedthesignificantpersonnelcasualty,createsdirectandtheindirecteconomiclossandtheenvironmentdestroyalsowithdifficultyestimates.Thestatisticaldataindicatedthat,intheproductionunitapproximately20%adjustmentvalveexistencedivulgesthequestion,createsthedirecteconomiclossapproximatelycomposesthetotallosses5%0inthepetrifiedprofession,takeasetof5000kt/ascaleoftenthedecompressorastheexample,intheordinarycircumstanceshas5,000abouttheadjustmentvalve,divulgestheeconomiclossby20%adjustmentvalvewhichcreatesandthepollutionwhichcreatestotheenvironmentindeedmaynotbelittle,iflookedfromtheentirepetrifiedprofession,thesituationwasmoreserious.4packingboxesdivulgethecountermeasurebecausetheadjustmentvalvepackingboxsealsdivulging,aswellasvalvebodyconnectionspotsealdivulging,iscreatesadjuststhekeywhichoutsidethevalveleakstobeat,thereforeneedsspeciallytotake.Thetraditionalsoftnaturepaddingseal,isdependsonthepaddingglandthethrust,causesitbetweenthevalveleverandthepaddingaswellasthepaddingandthestuffingboxsidewall,hasthecertainradialdirectioncontactstresstoachievetheseal.Therefore,theglandaxialforcemustbequitebig,thiscreatesbetweenthepaddingandthevalveleverrubsthetorquetoincrease,theattritionincreases,thesoftnaturesealingcompoundwearsquickly,thusmustfrequentlyscrewtightthepackingboltorthereplacementpadding,canguaranteethebettersealeffect.Usestheappropriatepaddingsealandthepaddingsealcombination,mayenhanceadjuststhereliabilitywhichthevalveuses,lengthenstheservicelife.Iftheflexiblegraphitelinkpaddingcombinationuse,onlyusestheflexiblegraphitelinkpaddingthesealeffecttobebetterthan.Atpresentindomesticusesthesoleflexiblegraphitelinkpaddingthesituationquitetobemany;Butinoverseas,usestheflexiblegraphitelinkpaddingcombinationtheapplicationmethodtostartpopularly,andhasobtainedthegoodeffect.5concludingremarkInsummary,adjuststhevalveinthepetrificationindustrialproductiondivulgingisthenotallowtoneglectquestion,ittotheproductionefficiency,thesecurityaswellascanbringthesignificantinfluencetotheenvironment.Theeliminationadjustmentvalvedivulgesthekeyliesintheoptimizedadjustmentvalvestructurethedesign,adjuststhevalveaccordingtothedifferentcraftconditionreasonablechoicethematerial,enhancesadjuststhevalveinproductionprocessqualitycontrollevel,aswellasadjuststhevalveaccordingtothecraftoperatingsystemoptimizationtheshaping.Alongwiththescienceandtechnologyprogress,speciallythenewmaterialappearance,somenewstructuresadjustmentvalvesputintotheuse,theirperformancegood,thelifeislong,maysatisfyproductiontheneedtodevelop.Reference:1WangXunjuValveusemaintenancehandbook[s]Beijing:Chinesepetrochemistrypublishinghouse,1,9992GermangingerThepetroleumchemicalindustryinstallmentprocesstubeinstallsdesignhandbooksecond[S]Beijing:Chinesepetrochemistrypublishinghouse,1,9983LuPeiwenThevalveselectsthehandbook[S]Beijing:Mechanicalindustrypublishinghouse,
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