搜索
DGSERIESBOILERWATERSUPPLYPUMP2007ProductCatalogDG01DG06DG0720DG0104DG10111415181922DG3030DG313637ProductpurposemodelmeaningaboutthestructureAssemblyanddetectionofpumpInstallationofpumpRunningofthepumpStructuraldrawingofDGmodelmiddleandlowpressure,hypo-high-pressureboilerwatersupplypumpStructuraldrawingofDGmodelhypo-high-pressureboilerwatersupplypumpPerformancetableofDGmodelmiddleandlowpressureboilerwatersupplypumpPerformancetableofDGmodelhypo-high-pressureboilerwatersupplypumpRepairofpumpFailuresandtroubleshootingofpumpOut-formandinstallationdimensionsofpumpDGTypehigh-pressureboilerwaterfeedpumpApplicationmodelmeaningconstructiondrivematerialStandardconstructionoftypeDGpumpsDGTypehighpressureboilerfeedpumpsperformanceRangeofcompletedsupplynoticeatorderDGSeriesmiddleandlowpressure,hypo-high-pressureboilerwatersupplypumpDGDGDG13DG2332PerformancecurvefiguresofDGmodelmiddleandlowpressureboilerwatersupplypumpPerformancecurvefiguresofDGmodelhypo-high-pressueboilerwatersupplypumpThedimensionofmodelDGmodelmiddleandlowpressure,hypo-high-pressureboilerwatersupplypumpPerformancecurvefigures1ABOUTTHESTRUCTUREForthisserieshorizontalmulti-stagecentrifugalpump,bothendsofitaresupported,thecasingportionisinasectionalform,itisconnectedtoandactuatedbyamotorviaaresilientclutchandtherotatingdirectionofit,viewingfromtheactuatingend,isclockwise.RefertoFig.1forthestructureofit.StatorportionConsistsofsuck-insection,middle-section,spittingsection,guidevane,packingetc.,whicharelinkedtogetherwithatake-upbolt,withbothsuck-inandspittingmouthsverticallyupward.RotorportionConsistsofashaft,impeller,balancingdisk,muffetc.parts.DG(1%0.1mm)DG10533.75185m/h4.0400kW69684m40150mmDG160315300m/h751250kW3901050m65200mmModelDGpumpisahorizontalmulti-stagecentrifugalpumpandsuitablefortransportingpurewater(withthecontainedforeignmatters'contentlessthan1%andgraininesslessthan0.1mm)andotherliquidsofbothphysicalandchemicalnaturessimilartothoseofpurewater.PerformancerangeofmodelDGseries3Flow:3.75~185m/hCorollarypower:4.0~400kWHead:69~684mInletdiameter:40~150mmPerformancerangeofmodelDGseries3Flow:15~300m/hCorollarypower:75~1250kWHead:390~1050mInletdiameter:65~200mmDGmodelmiddleandlowpressureboilerwatersupplypumpisapplicabletotransportmediumwithtemperatureofnothigherthan105,andisalsoapplicableforsmallboilerwatersupplyortransportingmediumsimilartohotwater.DGmodelhypo-high-pressureboilerwatersupplypumpisapplicabletotransportmediumwithtemperatureofnothigherthan160,andisalsoapplicableforsmallboilerwatersupplyortransportingmediumsimilartohotwater.PRODUCTPURPOSEDG6-255(m)3(m/h)MODELMEANINGNo.ofstagesHeadofsinglestage(m)3Flow(m/h)Multi-stageboilerwatersupplypump01DGSERIESMIDDLEANDLOWPRESSURE,HYPO-HIGH-PRESSUREBOILERWATERSUPPLYPUMPDGSERIESBOILERWATERSUPPLYPUMP02DG25-30DG46-30DG12-25ViewfromthemotorsideViewfromtheoppositemotorsideofOutletofcoolingwaterInletofcoolingwaterOutletofcoolingwaterInletofcoolingwater#20o80C1.5~322Kg/cm0.5~1Kg/cm122~3kg/cm23kg/cmBearingportionThewholerotorissupportedbytherollerbearingsorslidingbearingsonbothendsoftheshaftandthebearingsare#lubricatedwithgreaseor20enginoil.CoolingandsealofpumpThejoint-partbetweensuctionsection,intermediatesectionanddischargesectionwithbecoatedwithmolybdenumdisulfidelubricatinggreaseasseal.Rotorandfixedpartswillbesealedbysealring,guide-vanejacketandpacking.ThepackingtensiledegreeofshaftsealshouldbeproperandseepshouldbefeasibledipbydipUnloadrunshouldbeforbid.Thesealringandguidevanejacketshouldbereplacediftheyaretooworntobeusedanymoreandevendoharmtopumpwork.Thereisspareshaftsleevenearshaftsealtoprotectshaftofpump.Theshaftsealshouldperformtoholdwaterandsealwater.Whentemperatureoftheliquidtransferredisabove80,cooledwatershouldbefilledtothewatercoolingpackingglandandshaftsealcoolingchamber.Cooledwaterandsealwatershouldbecleanwaterinnormaldegree.Thepressureofcooledwatershouldbe1.5~3Kg/cm2,pressureofsealwatershouldbemorethan0.5~1Kg/cmofthesealchamber.Thepositionsofcoolingwaterpipejointsaredifferentforvariouskindofwaterpump.Pleaserefertoconstructiondrawingofpumpforaxialposition,andrefertochart1forradialposition.Shaftsealsareclassifiedaspackingsealandmechanicalseal.Thewatersealwaterofpackingsealisindustrialwater,with2pressureof23kg/cm.Theflushingwaterofmechanicalseal2issoftenedwater,whosepressureshallbe3kg/cmhigherthantheinletpressure.DG85-45DG85-67DG155-6703DG6-25DG280-100DG150-100DG25-80DG45-80DG85-80DG25-50DG46-50OutletofcoolingwaterInletofcoolingwaterOutletofcoolingwaterViewfromthemotorsideInletofcoolingwaterViewfromthemotorsideInletofcoolingwaterOutletofcoolingwaterViewfromthemotorsideOutletofcoolingwaterInletofcoolingwaterViewfromtheoppositemotorsideofOutletofcoolingwaterInletofcoolingwaterViewfromtheoppositemotorsideofOutletofcoolingwaterInletofcoolingwaterViewfromtheoppositemotorsideofOutletofcoolingwaterInletofcoolingwaterViewfromtheoppositemotorsideofViewfromthemotorsideInletofcoolingwaterOutletofcoolingwaterDGSERIESBOILERWATERSUPPLYPUMP1611162712173813491451015ColumnresilientclutchpartSealringTake-upboltCovero