资源描述：
《-【精品文档资料】液压专业英语教程5》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、Unit5AirFilters,PressureRegulators,andLubricatorsTheaircompressorandthevariouscomponentsthatarelocatednearthecompressorwerediscussedinapreviouschapter.Thecompressorsystemmayinclude,inadditiontothecompressor,anafter-cooler,asafetyvalve,awaterseparator,andareceiv
2、er.Thecompressedairleavingthecompressorsystemisthevariousdevicesfordoingwork;thesedevicesmaybeaircylinders.pneumaticmotors,orpneumatictools(Fig.l).Inawell-designedpneumaticsystem,theairmustpassthroughanairfilter,apressureregulator,andalubricatorintheline,before
3、itisdeliveredtothedeviceormachinethatperformsthework.Itissometimesrecommendedthatnotmorethantwotoolsbeservedbyasinglefilter,regulator,orlubricator,Inthischapter,thefunctions,andmaintenanceofthethreecomponents^I)airfilter;(2)pressureregulator;and(3)lubricatorare
4、discussed.Allthreecomponentsarenecessaryforefficientoperationofpneumaticsystems,anditisimportantthattheyshouldbeinstalledandmaintainedproperly.GENERALFEATURESSomeofthegeneraloperatingfeaturesshouldbepointedout.Severaldifferentworkdevicesorairtoolsmaybeconnected
5、toasinglecompressor,whichmaybelocatedatadistancefromthetools.Theremaybeperiodsoftimewhennoairisrequiredfromthecompressor.Thedistributionpipingmaybewarmduringsomeperiodsoftimeandcoldatotherintervals.Itisalmostimpossibletokeeptheairdistributionpipingfreefromdirt,
6、moistureorcondensate,pipecompound,pipescale，emulsifiedanddeterioratedcompressoroil,andrust.FgI.Compress«d
7、s,variousamountsofimpuritiesmaybefoundintheairdistributionlines,Foreignmatterinthecompressedaircandorealdamage,causingasystemtobecomeinoperative.Foreignmattercanclogthevalveportsanddamagethevalvepartsandotherclose-fittingpartsinairtools,airmotors,pistons,andoth
8、erdevices.Forexample.pipescalewhichconsistslargelyofironoxideisextremelyabrasive;itcanscorethevanesinairmotorsandanyothersurfaceswithwhichitcomesincontact.Deterioratedoilfro
