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1、东汽60W机组EH供油系统介绍oilsupplysystemThefuelsupplysystemprovidesahighpressureworkoil(11.2MPa)forregulatingtheimplementationofthesecuritysystem・Theutilitymodelismainlycomposedofahigh-pressuredevice(includingaregenerationdevice,anaccumulator),anoilfilterassem
2、blyandacorrespondingoilpipelinesystem,asshowninFig.0一5一1.1.1workingprincipleofoilsupplydeviceByACmotordrivenhighpressurepistonpump,throughthefilterbythepumpinthetankwillbeantifueloilfromthepumpsuction,theexportofoilthroughtheoilfilterpressureintotheh
3、igh-pressureaccumulatorandthehigh-pressureoilaccumulatorconnectingpipe,thehighpressureoiltotheactuatorandhighpressuresystem・Thepressurereliefvalvetubewas14+0.2MPaactioninhighvoltagetokerogen,over-voltageprotectionfunction.Theoilreturnoftheactuatorpas
4、sesthroughthepressurereturnpipefirstthroughtheoilfilterandthenbacktothetank.HighpressurepipeonthepressureswitchPSC4tohydraulicdeviationfromthenormalwhenthealarmsignalandswitchsignalprovidesautomaticstartstandbypump,pressureswitch,PSC1,PSC2,PSC3cansen
5、dinterruptstopsignal(threeoutoftwologic)・ThepumpoutletpressureswitchesPSC5,PSC6and20YV,21YVareusedforthemainoilpumplinkagetest・Thefueltankisequippedwithatemperatureswitchandaliquidlevelswitch,whichisusedfortheoiltankwithhighoiltemperatureandoillevela
6、larmandtheinterlockcontroloftheheaterandthepump.Theoillevelindicatorispositionedonthesideofthetank・OnepointtwoIntroductionofoilsupplyunitandmaincomponentsPowerrequirementsforoilsupplyinstallations:Twomainoilpumpsfor2x45KW,380VAC,50HZ,three-phaseTwoci
7、rculatingpumpsare1.5KW,380VAC,50HZ,three-phaseAgroupofelectricheaters3KW*2220VAC,50HZ,singlephase1.2.1oilpumpTwoEHCpumpsarepressurecompensatedvariabledisplacementpumps.Whenthesystemflowincreases,thesystemoilpressurewilldrop,andiftheoilpressuredropsto
8、thesettingvalueofthepressurecompensator,thepressurecompensatorwilladjustthestrokeoftheplungertoincreasethesystempressureandflow・Similarly,whentheamountofoilinthesystemisreduced,thepressurecompensatorreducesthestrokeoftheplungerdndreducesthedisplaceme
