泵站设计关键.ppt

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1、KeyFactorsforPSDesign泵站设计关键因素1Installation安装位置Inside/outside,onorbelowthefloor,etc..室内/室外，地面/地下等Sizeoftheinstallation安装尺寸Wastewater,rainwaterflow,Head污废水，雨水的流量、扬程Material材料Concrete,fibreglass,polyethylene,etc混凝土、玻璃钢或聚乙烯等Requestedequipments设备要求Screen,separatevalvechamber,levelswitch,etc.格栅、独

2、立阀门井、液位开关等Beforewecanselecttherightpumpingstation,weneedtoknow?在泵站设计前，我们需要知道？2BasicprocessofPPSdesign泵站设计基本步骤Pumpdesignfinished泵站设计完成Pumpselection选泵Designedinflow,head设计入流流量、扬程Relatedinformationcollection相关信息收集Elevationofground,inletanddischarge地面、进出水管标高ConfirmeffectiveVolume确定有效容积Confirmst

3、oplevel确定停泵水位Confirmstart/stopnumber确定启动次数Confirmdistancebetweenstartandstoplevel确定启停液位距离Tankdiameter井筒直径3Sizingofwastewaterpumpingstation污废水泵站尺寸Minimumvolume最小容积Effectivevolume有效容积1234Groundlevel地面标高56Topcover顶盖Dischargeport出水端Alarmlevel报警液位Inletport进水端Startlevel启动液位Bottom底部Stoplevel停泵液位4T

4、hedepthoftheminimumvolumemustbehighenoughtoavoidthepumpsuckingair最小容积高度应该避免水泵吸入空气Directfallfromtheinletshouldbeminimizedtoavoidairinthepump进水管跌水高度最小化，避免水泵吸入空气Maximumvelocityofwaterintake:1,2m/s最大入流流速1,2m/sInclinedbottom(45°to60°)（PUST）底部倾斜(45°to60°)(PUST)1-Minimumvolume最小容积Baffle缓冲高度Minimum

5、volume最小容积1Bottom底部Stoplevel停泵液位5Minimumdiameteratthebottom（PUST）increasesthewatervelocityandfacilitatethepumpingofsolidmatters底部直径缩小(PUST)增加了水的流速，有利于泵送固体介质MinimumstoplevelforSE1/SEVwithstainlesssteeljacketsisjustabovethepumphousing不锈钢外壳的SE1/SEV的最低停泵液位为水泵涡壳以上Forotherpumps:Stoplevelatleastin

6、themiddleofthemotor对于其他的水泵：停泵液位最低至电机的中部1-Minimumvolume最小容积Baffle缓冲高度1Minimumvolume最小容积Bottom底部Stoplevel停泵液位6Itisveryimportanttogetthedistancebetweenstartandstopright.启/停液位之间的距离非常重要Thestartlevelandstoplevelmustbeascloseaspossibleto启停液位应尽可能满足designthetanksizebyoptimizingtheeffectivevolume优化有效

7、容积,设计井筒尺寸Atleastatthetopofthemotor最小到电机的顶部EffectiveVolume有效容积2Startlevel启泵液位Stoplevel停泵液位2-EffectiveVolume有效容积7Itisveryimportanttogetthedistancebetweenstartandstopright.启/停液位之间的距离非常重要Thestartlevelandstoplevelmustbeascloseaspossibleto启停液位应尽可能满足designtheta