湖南镇水电站设计说明书.doc
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- 湖南 水电站 设计 说明书
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1、摘 要湖南镇水电站座落于浙江省乌溪江,属于梯级开发电站,根据地形条件,其开发方式为有压引水式。坝区地质条件较好,主要建筑物有:挡水建筑物(砼非溢流坝),泄水建筑物(砼溢流坝),引水建筑物(有压引水遂洞,调压室),地面厂房等。水库设计洪水位237.5m(千年一遇),相应的下泄流量5400m3/s;校核洪水位239m(万年一遇),相应的下泄流量9700m3/s;设计蓄水位23m;设计低水位191.2m。本设计确定坝址位于山前峦附近,非溢流坝坝顶高程241m。坝底高程111m。最大坝高130m。上游坝坡坡度1:0.15,下游坝坡坡度1:0.7,溢流坝堰顶高程224.2m。引水遂洞进口位于坝址上游凹口
2、处,遂洞全长1110m。洞径7.92m,调压室位于厂房上游210m左右处,高程249m的山峦上,型式为大井小井分离布置差动式调压室。厂房位于下游荻青位置。设计水头97.53m,装机容量44.25=17万kw,主厂房净宽17m,总长64m。水轮机安装高程115.82m,发电机层高程125.3m,安装场层高程125.3m。厂房附近布置开关站,主变等。受地形限制,尾水平台兼作公路用,坝址与厂区通过公路(公路段和遂洞段)连接,形成枢纽体系。另外,本设计还对引水隧洞衬砌进行了设计和计算。由此可见,本设计是合理可行的。关键词:水利枢纽、挡水建筑物、泄水建筑物、稳定、应力、水轮机、引水隧洞、厂房。Abstr
3、act The Hunanzhen hydroplant,located in HuNan Town,in ZheJiang Province ,belongs to cascade hydroelectric stations.According to the topographic data and geologic environment ,the development of the Wuxijiang hydroplant is diversion type power station . The geology condition is good .The main constru
4、es conclude the hydraulic retaining structure (the concrete non overflow dam) ,the water release structure (the concrete over flow dam) ,the water-diverting structure(the pressure diversion tunnel ,the surge chamber ) ,and the powerhouse.The design flood level is 237.5 m , its corresponding discharg
5、e is 5400 m3/s .The check flood level is 239 m ,its corresponding discharge is 9700m3/s .The normal pool level is 231m .The dam site is near the former saddle .The DCL of the non-overflow dam is 241m ,and the base level is 111m ,The max dam height is 130 m ,The upstream dam slope is 1:0.15 ,the down
6、stream dam slop is 1:0.7 ,the spillway crest elevation is 224.2 m .The inducer of the seepage tunnel is located at the recess place ,The length of tunnel is 1100 m ,the diametric of which is 7.92m .The surge chamber is located at the mountain , which is 210 m from the work shop building and is type
7、is differential motion.The workshop building is located at downstream ,the design level of the turbine is 97.53m , the equipped capacitor is 17104kw ,the clean width is 17 m , its whole length is 64.0 m . The fix level of the turbine is 115.2m , and the height lf dynamo is 125.3m , the level of the
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