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1、离心泵综合实验台使用说明本实验台是可以进行离心泵特性曲线测定实验、离心泵汽蚀实验和离心泵启停及串并联实验的一种多功能综合实验台。一、试验台的结构及工作原理试验台的结构如图所示。试验台的结构示意图1.平衡砝码2.电机(1)3.水泵(1)4.串联管路及阀门5.出水阀(泵1)6.压力表7.真空表8.出水阀(泵2)9.真空表10.压力表11.文丘里流量计12.转向漏斗13.计量水箱14.调试排空水箱15.排水阀16.测量水箱放水阀17.进、排气阀18.水箱19.排水阀20.实验台支架21.电机(2)22.水泵(2)24.
2、吸水管25.进水阀(泵1)ofrelativehumidity'snotover65%,Yuintoandthelayershomesrequirements55~65%:topreventhumidityhadbig.alsomusthasenoughofventilationvolume,builtcementground,don'tinlow-lyingatbuiltsheds,,(4)sufficientofSunirradiation:thismainonopensheds,.SufficientofS
3、unirradiation,especiallywintercanmakesshedswarm,anddryanderadicationdiseaseoriginalmicrobial,jso,usingnaturallightingofshedsfirsttoselectgoodshedsofazimuth,towardsSouthsunnybetter?second,Windowsofareasizealsotoappropriate,specieswithshedsWindowsandgroundareao
4、fthanto1:5better,meatwithshedsisrelativesmallsome:closedtypeshedstogivesstrengthrightofartificiallighting,asdegreeslowernotconducivetochickengroupofproducedegg.asdegreespartialhighbothwastepowerandeasycausedsuckingfetishofoccurred.Henactivitiestakeplaceinside
5、thehenschicksandlayinghensilluminanceof10luxand5~10,respectively.(5)therightdensity:stockingdensityisdirectlyrelatedtothehealth,growth,developmentandperformance.Densityistoolittleequipmentinvestmentincreasedstockingdensityreducedweightgain,increasedeggmortali
6、tyoftheGeneralAssembly.Therefore,thechickenareamustbeconsistentwiththecapacityofappropriatedensity.(6)fordisinfectionandepidemicprevention:inordertoimprovethesterilizationeffectofwallsurfacetobesmooth,theremustbeconcreteandDado.hen-housepopulationshouldbeequi
7、ppedwithdisinfectionofpools:mechanicalscrapingmanureshedsitsoutwardoftheguttershouldbeplacedinthe3实验台主要由水泵1(用以测泵特性及串并联实验)、水泵2(用以测泵的汽蚀余量和串并联实验)。水箱、文丘里流量计、计量水箱、真空表、真空压力表、压力表,管道及阀门等组成。泵1的驱动电机,其转子的轴固定的轴承上,而其定子是悬浮的,在测定水泵特性曲线时,电机通电,定子和转子产生感应力矩,使转子旋转,驱动泵的叶轮转动;同时,定子也
8、由于反力矩而转动,利用定子上的力臂测力矩。其端点顶在电子磅秤上(或在其力臂端点上加砝码使其平衡),限制其转动,从而测定出电机的工作力矩M;再用转速表测出电机的转速n(转速表自备),学生实验时,也可用电机标牌上给出的转速,其误差小于2%。即可算出泵的输入功率N。实验时,利用各阀门的开、关和调节,形成泵1的单台泵工作回路,在不同流量下,测定一组相应的压力表、真空表、和流量计的