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ID:8352211
大小:2.03 MB
页数:83页
时间:2018-03-21
《重力坝厂房设计说明书毕业设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、水利水电工程专业毕业设计中文摘要沙溪口水电站计划建在福建省南平市上游的西溪上,是闽江流域的一个梯级电站,属于河床式水电站。本电站主要组成建筑物有溢流坝、非溢流坝、厂房和船闸。坝体型式为混凝土重力坝,溢流坝段布置于河床中部,厂房布置在河床右岸,船闸布置在左岸。非溢流坝坝顶高程93m,上游面坡度为1:0.2,下游面坡度1:0.80,溢流坝堰顶高程82.78m。溢流坝段全长340m,设有18孔溢流孔,每孔净宽取为17.0m,沿主河槽宣泄绝大部分洪水。水库正常蓄水位为88.00m,设计洪水位为90.00m,校核洪水位为91.00m,死水位为84.00m
2、。电站设计水头为10.3m,总装机容量为320MW,安装有4台轴流式水轮发电机组,每台装机容量为8MW。水轮机型号均为ZZ560-LH-850,转轮直径为8.5m,水轮机安装高程66.47m,发电机层高程86.005m,取安装场高程与发电机层同高。下游校核洪水位81.50m,主厂房顶高程为108.00m,厂房总长148.2m,宽74m。220kV及110kV开关站布置在尾水平台右侧。船闸闸室100m×20m×2.5m(长×宽×最小水深),位于溢流坝左侧。沙溪口水电站具备发电,航运,过木等的综合效益,是福建电网的骨干电厂。关键词沙溪口水电站、河床
3、式厂房、重力坝、溢流坝、水轮机、发电机、抗滑稳定性、扬压力、轴流式水轮机、发电机层结构设计-83-水利水电工程专业毕业设计AbstractShaxikouHydropowerStationispreparedtobuiltatXixistream,upstreamthecityofNanpinginFujianProvince.ItisoneofthecascadedevelopmentintheMinjiangriverbasin.Itisapowerhouseinriverchannel.ThemainstructuresofShaxiko
4、uHydropowerStationisconsistofoverflowspillwaydam,non-overflowspillwaydam,powerhouseandlock.Thedamsareconcretegravitydams.Theoverflowspillwaydamliesinthecentreoftheriverbed.Thepowerhouseliesontheright,andthelockislocatedontheleft.Thetopofthenon-spillwaydamisatanelevationof93m
5、eters.Theupstreamofthedamisvertical,thelowerslopedegreeis1:0.2,andtheupperslopedegreeis1:0.80.thecrestoftheweirisatanelevationof82.78meters.Theoverflowspillwaydamisabout340meterslongintotal,with18openingseachof17meterswide,dischargingmostofthefloodflowalongthemainriverchanne
6、l.Thenormalwaterleverofthereservoiris88.00meters,whilethedesignfloodwaterlevelofthereservoirreachesat90.00meters.Thecheckingfloodwaterlevelisabout91meters.Andthedeadwaterlevelisonly84.00meters.Thedesigncross-headis10.3meters.Theprojecthasatotalinstalledcapacityof320MW.Ithous
7、esfouraxial-flowturbinescoupledwithgenerators8MWeach.ThetypeoftheturbineisZZ560-LH-850.Thediameteroftheturbineis8.50meters.Therunnersettingisatanelevationof66.47meters.Thegeneratorfloorisatanelevationof86.005meters.Anditisthesamewiththeserviceorerectionbay.However,thecheckin
8、gtailwaterleveris81.5meters.Thetopofthepowerhouseisatanelevationof108meters
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