~PAGE\*MERGEFORMAT3~二马营引水式电站设计摘要二马营引水式水电站位于山西省宁武县境内，位于汾河支流上，水力资源丰富。流域下游为该县的主要产粮区和工业发展区。由于受电力不足的影响，严重制约了该地区的经济发展，为了解决该地区的用电紧张问题和合理开发汾河水力资源，拟定修建水利水电枢纽工程，以发电为主，结合防洪，城市供水，农田灌溉等进行综合利用。根据已有的原始资料和该处地形图进行设计，主要内容有：引水隧洞及调压室的水力计算、水电站站址的选择、总体布置及机电设备的选择和厂房设计。本电站的引用流量为103.2m³/s，设计水头为87.67米，单机容量为25000kW。经方案比较最终选择绕沟谷而行的有压隧洞，其断面形状为圆形，经济洞径为6.6米，总长度为3770米；调压室的型式为简单圆筒式，总高度为42米；水轮机型号为HL200，总装机容量为72900kW；选用金属蜗壳，长9.0米，高5.2米的弯肘形尾水管；选用名义起重量为2×50吨的双小车桥式起重机；油压装置的型号为HYZ-0.6；主厂房长39.484米，宽11.98米，高34.197米。关键词：引水式电站；有压隧洞；调压室；水轮机。DiversiontypehydropowerstationdesignofErmayingAbstractErmayinghydropowerstationlocatedatShanxiProvinceNingWuXianChina,locatedinFenhebranches,waterresources.Basinforthecounty'smaingranariesdownstreamandindustrialdevelopmentzone.Duetotheinfluenceofthepowershortageby,whichseriouslyrestrictthedevelopmentofthelocaleconomy,inordertosolvetheproblemsofshortageofelectricityintheareaandreasonabledevelopmentFenhehydraulicresources,drawsupthebuildingwaterconservancyandhydropowerprojectengineering,mainlyinpowergeneration,combinedwiththefloodcontrol,urbanwatersupply,irrigationandcomprehensiveutilization.Accordingtotheexistingoftheoriginalmaterialandthetopographicmapdesign,themaincontentincluded:thewatertunnelandthesurgechamberofthehydrauliccalculation,thechoiceofhailhydropowerstation,overalllayoutandelectricalandmechanicalequipmentselectionandplantdesign.Thepowerstationforreferenceflow103.2m³/s,designheadof87.67m,singlecapacityof25000kW.Thefinalchoiceplansisaroundthevalleysanddonewaterdiversiontunneltype,andthecross-sectionshapeiscircularandeconomicholediameterof6.6m,withatotallengthof3770meters;Surgechambertypeforsimplecylindertype,totalheightof42meters;TurbinemodelforHL200,alltotalinstalledcapacityof72900kW;Choosethescroll,9.0meterslong,5.2metershighbendanconformtailpipe;Choosenameupfor2x50tonsofweightofdoublecarbridgecranes;HydraulicdevicemodelforHYZ-0.6;Mainbuilding39.484meterslong,11.98meterswide,34.197meters.Keywords:diversiontypehydropowerstation;pr