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ID:52949336
大小:5.43 MB
页数:41页
时间:2020-04-02
《煤矿用耐磨离心水泵MD系列.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、MDMDTYPEWEARABLECENTRIFUGALMINEWATERPUMP2006ProductCatalog01Outline01Adoptstandard01Rangeofperformance01Modelmeaning01Calculationoftheerectionheight02Descriptionofstructure02TableforMDpumpmaterial03StructuraldrawingofmodelMDpump06Maintechnicalregimeofmode
2、lMDpump25ExternalanderectiondimensionsofmodelMDpump34Assemblyanddetectionofpump35Erectionofthepump35Start,runandstopofthepump36Maintenanceandservice38Failurescausesandtroubleshooting39ReferencetableforpipelinelossMDTYPEWEARABLECENTRIFUGALMINEWATERPUMPOUTL
3、INEMDMDtypewearablecentrifugalminewaterpumpisusedtotransporttheclearwaterandtheneutralliquidofpitwater1.5%<0.5withsolidgrain1.5%.Granularity<0.5mm.Thetempe-O80Cratureoftheliquidisnotover80C.Thepumpsaresuitableforowatersupplyanddrainageinmines,factoriesand
4、cities.Note:Whenthesituationisinthecoalmine,explosionprooftypemotorshallbeused.ADOPTEDSTANDARDMT114-1985MDMT114-1985TechnicalspecificationsforwearableminepumpRANGEOFPERFORMANCE33(Q)25-500m/hCapacity(Q)25-500m/h(H)60-1798mHead(H)60-1798mMODELMEANINGMD28043
5、(A)(SL)3PumpstagenumberShanghaiLianchengTheseconddesign(mm)Single-stageheadvalueatthedesignedpointofthepump(mm)33(m/h)Capacityvalueatthedesignedpointofthepump(m/h)MDMDtypewearablecentrifugalminepumpCALCULATIONOFTHEERECTIONHEIGHTTheerectionheightofthepump,
6、thatistheverticaldistancefromthesuckedliquidsurfacetothepumpshaftshouldbelessthanitwhichshouldbetakenintoconsiderationforuserstose-lectthepump,iscalculatedperthefollowingformula:HszHa-Hv-Hs-(NPSH)rHszHa-Hv-Hs-(NPSH)rHsz--(m)Ofwhich:Ha--(m)Hsz--theerection
7、heightsetwiththepump(m)Ha---theheadoftheatmosphericpressureundertheHv--(m)conditionsonthespotofuse(m)Hs--(m)Hv---theheadofthevapourizedpressureunderthetem-(NPSH)--peratureoftheliquidbeingumped(m)(m)Hs--thelostheadofthesuck-inpipeline(m)(NPSH)r--thenecessa
8、ryvalueofNPSHgivenintheta-bleofperformanceparameters(m)01DESCRIPTIONOFSTRUCTUREMDModelMDpumpconsistsoffourparts,stator,rotor,bea-ringandshaftseal:1.Statorconsistsofinlet,middleandoutletsectionsand1.theguidevaneetc.,
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