文件名尽信书，则不如无书DefineProcessNeeds风机系统应用•Transport运输•Feed进料•Shape成型•Ventilate通风•Grind打磨•Heat加热•Cool冷却•Clean清洁•Dry干燥•Mix混合Efficiency能效%100%100输入输出效率InputOutputFanSystemEfficiency风机系统效率PlantPower100%95%Left90%Left58%Left29%LeftMotorLoss5%DriveLoss5%FanLoss35%SystemDamperLoss50%MotorBeltDriveFanProcess工厂总功率剩余95%剩余90100%剩余58%剩余29%电机损失5%驱动损失5%风机损失35%系统挡板损失50%电机皮带传动风机工艺TypicalPlantSystem典型的工厂系统InputEnergyWastedWastedEnergyEnergyProcessNeeds输入能源工艺需求浪费的能源AchievingaMatch实现匹配InputEnergyProcessNeeds工艺需要输入能源EnergyLaw能量守恒定律EnergyCannotBeCreatedorDestroyed能量既不能创造也不能消灭DestructiveEnergy无用能量Heat&Vapor热和蒸汽Vibration&Noise震动和噪音DollarCostsofDestructiveEnergy无用能量的经济代价•Equipmentbreakdowns设备故障•Idleworkers工人没活干•Morerejects废品增加•Reducedproductivity生产力下降•Highermaintenanceandrepaircosts维修工作量及维修费增大•Priorityshippingcharges急件运输费增加•Spoiledproductcleanupanddisposal报废产品清理和处理费用•Higherenergycost能源成本提高HumanCostsofDestructiveEnergy无用能源的人力代价•Fatiguedorunhappyworkers造成工人疲乏或不舒适•Workerswithhearingdamage损害工人听力•Disruptedfamilylifeofmechanicsw/beepers打乱了配有警报器的机修工的家庭生活•Disruptedschedule造成倒班混乱•Latedelivery,angrycustomers迟交货，客户不满意•Spoiledproductmesstocleanupanddisposeof报废产品清理和处理FanSystemCosts风机系统成本•Labor劳动力•Repair维修•Capital投资•Energy能源•Breakdownlosses故障损失Low低Low低Medium中High高VeryHigh非常高QuickPaybackFanOpportunities风机系统节能投资回收期短的机会Lookfor寻找•Fixedpositiondamper固定挡板•Throttlecontrol节流控制•Paddle-wheelfans叶轮风机•Poorductconnections风管连接不当FanTypesandApplications风机类型及应用PropellerFans叶轮风机CommonlyusedinLowpressure,Lowvolumeapplications通常用于低压,小风量应用场合–Coolingtower–Wallexhaust–Roofexhaust–Homewindow–冷却塔–墙壁排风–屋顶排风–房间窗户排风NotveryefficientNoisyNotabletogeneratemuchpressure效率不是非常高存在噪音不能产生太高的压力DiagramCourtesyAMCA该图表为AMCA版权所有VaneAxialFans叶片轴流风机Usedwherelargequantitiesofairareneededatmodestpressures用于中压，大空气流量的场合–Tunnelventilation–Largebuildingventilation–ProcessAir–隧道通风–大型建筑通风–工艺需要的空气•CanbeveryEfficient•CanbeVariablepitch•效率可以非常高•可变节距调整DiagramCourtesyAMCA该图表为AMCA版权所有VaneAxialfansInstallWithDiffuserifPossible叶片轴流风机尽可能安装扩压器CentrifugalFans离心风机•CandevelopRelativelyhighpressures-5000Paandhigher•Singleordoubleinlet•Varietyofbearingandmotorconfiguration•Varietyofpressureclasses•能够产生相对高的压力-5000Pa及更高•单进气口或双进气口•可以配置各种轴承和电动机•具有各种压力等级DiagramCourtesyAMCA该图表为AMCA版权所有CentrifugalFanEfficiencies离心风机效率•Radialblade50-60%径向叶片•Radialtip50-65%径向叶尖•Forwardcurved45-65%前曲叶片•Backwardinclined55-70%后倾叶片•Backwardcurved55-70后曲叶片•Airfoil60-75%•翼型叶片DoubleWidthCentrifugalFan双宽度离心风机•Canhandlelargervolumesofair•Impellerforcesbalanced(nothrust)•Makesductedinletstrickier•可以处理更大流量的空气•叶轮的各个作用力得到平衡(无推力)•使管道连接的进口更先进DiagramCourtesyAMCA该图表为AMCA版权所有RadialBladedImpeller径向叶片状叶轮•Simpletobui...
