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ID:50222056
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页数:13页
时间:2020-03-12
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1、HALFACENTURYOFCONDENSATEPOLISHINGbyEliSalem&TerranceLaTerra,GraverWaterSystems,Inc.IntroductionTheuseofinplaceregeneratedmixedbedabovethedistributiontube.Thissplitdemineralizersforcondensatepolishinginsuresthatthecondensateisdistributedoriginatedinthe1950s.Bytheendof
2、theequallytothetopandbottomofthefilterdecade,GraverWaterhadpatentedamethodelementsandavoidslocalizedhighoftransferringtheresinstoanexternalvelocitieswhichcoulddisrupttheprecoat.regenerationsystemanddesignedthefirstTreatedcondensatepassesthroughthefiltersystemforLouis
3、ianaPower&LightsLittleelementsandproceedsthroughthetubeGypsyStation.ThiswasthefirsthighsheettothePowdexvesseloutlet.Likewise,pressure(2400psig)drumboilertoemployfigure3bdepictstheprecoatcycleinwhich100%deepbedtypecondensatepolishing.thedirectionofflowisthesameastheOv
4、erthenext40years,manyinnovationstoservicemode.Duringthebackwashcycle,theexternalregenerationconceptwerethevesselispartiallydrained(figure3c).ÒThenAirSurgeisappliedusingashortburstintroducedincludingGraversSeprexandÒofairintroducedtotheplenumtodisplaceSepraEight(seefi
5、gure1)processes.thewaterbetweenthetubesheetandtheInaddition,aradicallydifferentconcept,tubesheetdowncomers(figure3d).ThisPowdexÒ,wasinventedbyGraverWaterinprocessisrepeatedseveraladditionaltimes1962.Thisprocessutilizedfinelygroundatdifferentwaterlevelsinthefiltercham
6、berionexchangeresininadisposableprecoatasimpliedinfigures3e&3f.Thisformatandeliminatedthenecessityoftechniqueinsuresthefilterelementsarechemicalregenerationaltogether.Thisrestoredtotheirlowinitialpressuredroptechnologyevolvedintotodaysstateofthewithminimalwaterconsum
7、ption.artPowdexprocessemployingadvancedÒBoththeSepraEightÒexternalregenerationprecoatingtechniques,AirSurgebackwashÒandanenhancedflowdistributiontube.typesystemsandthePowdexprecoattypesystemsareappliedtomeetthecondensateFigure2isaschematicdiagramofaPowdexpolishingreq
8、uirementsoftodayshighsystemwithanenhancedflowdistributionpressureboilers.Asaworldleaderintube,AirSurgetypebackwash,andcondensatepol
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