帕斯菲达计量泵

介绍:蔡旋2002年8月8日介绍：蔡旋•关于帕斯菲达Pulsafeeder•计量泵技术•泵类总揽•计量泵的特点•系统考虑•控制技术•PULSAR的特点关于帕斯菲达PULSAFEEDER•第一台隔膜计量泵的发明者….•设计买给LAPPINSULATORofRochester,NewYorkin1939•曾用于心脏外科手术•PULSA®Series从LAPP独立-1965关于帕斯菲达PULSAFEEDER•美国计量泵手册由帕斯菲达撰写-MeteringPumpHandbook•1992年被IDEXCorporation收购•帕斯菲达不断开发新产品–PULSAR-November,1995–Series‘M’-1998–PULSASeriesmodel9490-November,1998–LI-2000•总部Rochester,NewYork(生产EPO)•另一个制造厂在PuntaGorda,Florida(生产SPO)•国际销售处:•新加坡,北京,上海•theNetherlands•Colombia•全球销售网络-代理经销商全球机构IDEXCorporation介绍•成立in1988•年销售8亿美金的集团公司•只收购市场领先的制造商•25%的销售来自于4年内开发的新产品IDEXCorporation介绍•泵集团–所有正位移泵制造商•EngineeredProductsGroupIDEX-泵集团•Pulsafeeder-计量泵•Viking-内啮合齿轮泵•VersaMatic-气动隔膜泵•Micropump-小的外啮合磁力驱动齿轮泵•Corken-页片泵及气体压缩机•GastManufacturing-真空泵及压缩机•LcMeter-流量计•Ismatec-蠕动泵IDEX-EngineeredProductsGroup•FluidManagement-DispensingSystems&PaintMixingSystems•Lubriquip-LubricationSystems•Band-It-Bandingequipment•HaleProducts-Firefightingequipment-“JawsofLife”•KnightEquipment-Warewash计量泵技术•泵的分类•为什么用计量泵•计量泵的类型•选泵的根据(介质和系统工况等)动力型离心泵特殊往复式转动容积式气动电动计量柱塞；活塞机械隔膜液压隔膜泵家族计量泵为什么用计量泵–典型应用–应用案例计量泵与动力型泵比较–计量泵的概念操作原理计量泵的类型选型因素–流量参数–系统要求–介质性质–计量泵附件–流量控制方式–精度计量泵Vs.动力型泵计量泵Vs.动力型泵动力型泵吸入量=排出量吸入量=排出量计量泵?动力型泵:性能随工况的改变而改变(如系统压力或物料改变等，流量会随着改变)无精度出口压力有限需密封（磁力驱动除外－价格昂贵）计量泵Vs.动力型泵计量泵:固有的精度独立于压力预知泵的性能比较高的压力努力无泄漏操作（柱塞及活塞泵除外）计量泵Vs.动力型泵为什么用计量泵?独立于系统波动–影响产品质量精确流体计量–影响产品质量高的输送重复性–影响产品质量正排量高精度流体计量高压输送无泄漏化学品输送有毒，腐蚀或昂贵流体的添加及输送典型应用涉及:工业应用案例－见资料水处理pH酸碱控制SodiumHypochloritefordisinfectionActivatedCarbonSlurriesforOdor/ColorControlAlum/LimeasflocculantaidesInjectionofneatpolymersforflocculation工业应用案例石油天然气ColorAdditivestoGasolineAntiknockAdditivestoGasolineMercaptainInjection工业应用案例PulpandPaperIndustryDyesforPaperColoringTiO2toPulpforOpacityControl工业应用案例PharmaceuticalandCosmeticsIndustryNutrientFeedinAntibioticProductionRatioingofIngredientsforHairDyesFoodandBeverageIndustrySprayingCoatingsonCerealsAddingPreservativestoJuice,Jelly,etc.UtilitiesIndustry(ElectricandGas)PhosphateTreatmentatBoilerPressureAdditivestoNaturalGasChemicalIndustry工作原理精确的流体计量活塞产品隔离隔膜控制精度单向阀计量泵类型电磁隔膜柱塞/活塞机械驱动隔膜液压驱动隔膜电磁隔膜•隔膜靠活塞驱动•活塞由电磁驱动•低压(低于21bar)•精度+2%•低成本•容易开车PULSATron•PULSATron–电磁驱动–流量达75.7LPH–压力达21bar–8种型号PULSAtron柱塞/活塞泵-高压-大流量-密封为磨损件9490packedplunger机械驱动隔膜泵•隔膜靠活塞带动•低于应用(lessthan21bar)•精度+2%•低成本•容易开车PULSATronSeriesM&LI•PULSATronSeries‘M’–机械驱动–单头流量达625LPH–压力达21bar–可多头–两种型号PULSAtronSeries‘M’液压驱动隔膜泵•隔膜受力均匀•隔膜与活塞分开•较高的压力努力•长寿命•精度达+/-1/2%•液压必须保持在开车时PULSASeriesandPULSARPULSASeries•PULSASeries–液压驱动–单头流量达13,006LPH–压力达382.7bar–可多头–10种型号•PULSAR–液压驱动–单头流量达440LPH–压力达220bar–可多头–三种型号PULSAR计量泵对照PistonMechanicalSolenoidHydraulicMaximumFlow(GPH)9960100201500MaximumPressure(psig)36,2503003005000Accuracy(%)+/-1.0+/-2.0+/-2.0+/-0.5NotesCrosscontaminationofprocessfluidisaproblem,pistoniswettedLimitedinpressureandshorterdiaphragmlifeduetounbalancedforcesLimitedinpressureandshortdiaphragmlifeduetounbalancedforcesLeakFree,Sealess,HighAccuracy,Accuracy精度ThreeTypes3种:–SteadyState稳定性–Repeatability重复性–Linearity线性Accuracy精度SteadyState稳定性Flow流量Time时间Accuracy精度Repeatability重复性FlowStrokeLengthAccuracy精度Linearity线性Flow流量StrokeLength冲程长度PULSASERIES设计特点泵头及隔膜平板隔膜•限位板保护隔膜•所有泵•特富龙Teflon,特富龙复合，金属MatthewT.Sass:MatthewT.Sass:MatthewT.Sass:MatthewT.Sass:管式隔膜•固有的双隔膜•固有的产品保护•介质直接通过•适合粘度高和浆料介质•材质Hypalon,Viton,orEPDM,PFAHYDRACONEDIAPHRAGM•Coneenableslongsuctionlifts.•Flow-throughpath-goodforhighviscositiesandslurries.•Threeparthydraulicsystem.隔膜•材质包括Teflon,Hypalon,Vitonandmetallic.•整体O-RingSeal设计.•长寿命–隔膜厚度是竞争着的2到3倍.DIAPHRAGMS•隔膜在使用前经过100％的检测阀•自重回落无弹簧确保长寿命•O-ring密封无泄漏•拆装无需拆管线•简单的维修安装球阀•3部分组成–阀座•刀面边缘•浆料阀座(橡胶).–阀盖•4点导引–阀球•极高加工精度确保圆度•移开无需拆管线CheckValveAssemblyBall:HighsphericityforpreciseseatingandmeteringaccuracyGuide:Wideclearanceflowpathandfourpointguidingforcontrolledriseassuresgoodvalveseatlife.Seat:“Knifeedge”designforpreciseseatingofball,helpsmaintainaccuracy.CHECKVALVES•Cartridgesystem–Threadedintoreagenthead–Valveseat-knifeedgeseatingsurface–Valveguide-fourpointguided–Valveball-extremesphericity–Plasticconstructiononly蝶型阀•大流量采用(1420LPH)•金属或塑料•标准或浆料阀•避免气蚀•降低噪音泄漏监测•化学式－电导率CHEMlarmLEAKDETECTION•Chemalarmleakdetection-conductivitysensingprobe.–Tubularpumps.•Pulsalarm-vacuumcoupleddoubleflatdiaphragm.–Flatdiaphragmpumps.泄漏监测•PULSALARM–真空双平板隔膜.PressureORVacuumVacuumOnlyFLOWADJUSTMENTLOST/FULLMOTIONPUMPSLOSTMOTION•PULSASeriesmodels200,680,and880,allPulsarmodelsandSeries‘M’•Rearwardpistontravelislimitedbymicrometerstrokelengthcontrol•PistonlosescontactwithcamasstrokelengthisdecreasedDIAPHRAGMACTUATIONLostMotionWormShaftEccentricAdjustmentScrewPistonMotorInputDiaphragmReagentHeadFULLMOTION•Models7120-8480.•Fourbarlinkagelimitsrearwardandforwardpistontravel.•Pulseamplitudedecreasesasstrokelengthdecreases.•Sinusoidalflowcharacteristicmaintainedduringstrokelengthadjustment.DIAPHRAGMACTUATIONFullMotionMotorWormShaftEccentricOscillatingArmPistonDiaphragmReagentHeadLOSTMOTIONPULSASeriesAUTOMATICSTROKELENGTHCONTROLS•Electric–ELMA-ElectronicLostMotionActuator–PULSAmatic•PneumaticstrokelengthcontrollerELMA•Lostmotionpump