乌溪江水电站厂房设计及岔管设计说明书(一).doc
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1、摘要乌溪江水电站座落于浙江省乌溪江,湖南镇,属于梯级开发电站,根据地形要求,其开发方式为有压引水式。坝区地质条件较好,主要建筑物(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。水库设计洪水位238m(千年一遇),相应的下泄流量6000m3/s;校核洪水位241m(万年一遇),相应的下泄流量9700m3/s;正常挡水位231m.本设计确定坝址位于山前峦附近,非溢流坝坝顶高程243.4m。坝底高程112m。最大坝高131.4m。上游折坡坡度1:0.15,下游坝坡坡度1:0.79,溢流坝堰顶高程226.2m。引水遂洞进口位于坝址上游凹口处,遂洞全长1100m。洞
2、径9.0m,调压室位于厂房上游280m左右处,高程180m的山峦上,型式为差动式。厂房位于下游荻青位置。设计水头92.9m,装机容量55=20万kw,主厂房净宽18.9m,总长57.4m。水轮机安装高程115.6m,发电机层高程125.6m,校核尾水位126.4m。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,坝址与厂区通过盘山公路连接,形成枢纽体系。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;选型;引水隧洞;调压室;厂房; AbstractThe Wuxijiang hydropower station is located in
3、 HuNan Town in ZheJiang province ,which belongs to a chain of exploitation .According to the demand of topographic form ,I choose diversion hydropower station . The geology condition is good .The main construction conclude the water retaining structure (the concrete non over-fall dam) ,the release w
4、orks (the concrete over fall dam) ,the diversion structure (pressure seepage tunnel ,the surge-chamber ) ,and the surface power station .The design water level is 238 m ,its corresponding flow amount is 6000 m3/s .The check level is 241 m ,its corresponding flow is 9700 m3/s .The regular water retai
5、ning level is 231m .The dam site is near the former saddle .The crest elevation of the non-over-fall dam is 243.4 m ,and the base elevation is 112m ,The max height of the dam is 131.4 m ,The upstream dam slope is 1:0.15 ,the downstream dam slop is 1:0.79 ,the spillway crest elevation is 226.2 m .The
6、 inducer of the seepage tunnel is located at the recess place ,The length of tunnel is 1100 m ,the diametric of which is 9.00 m .The surge-chamber is located at the mountain , which is 280 m from the work shop building and is type is differential motion.The workshop building is located at downstream
7、 ,the design level of the turbine is 92.9 m , the equipped capacitor is 20.0104kw ,the clean width is 18.9 m , its whole length is 57.4 m . The fix level of the turbine is 155.6 m , and the height lf dynamo is 125.6 m , the level of the adjustment bay is 126.4 m (higher of the downstream water level
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