白莲崖水电站水能规划及调度图绘制本科毕业设计说明书.doc

摘 要 白莲崖水库坝址位于漫水河中游，距淠河入口189km，属于年调节水库。水电站以发电为主，兼顾航运、放木(竹)及防洪等综合利用要求。 白莲崖水电站挡水建筑物为混凝土重力坝，坝址处于漫水河，坝址处河谷狭窄，两岸地形对称，岩石坚硬完整，为单一的花岗斑岩，地质状况良好。大坝正常蓄水位为208m，对应库容为2.005亿m3。坝址处多年月平均流量为19.5m3/s。通过计算可知，白莲崖水电站水库为年调节水库。 本次设计给定了水库正常蓄水位为211m，由于水库多年平均来水量较少，通过水量调节平衡计算，将正常蓄水位下调至208m。对三个拟定的死水位方案（179m，181m，183m）进行兴利调节及水能计算，经计算比较，选保证出力大的179m死水位为最终方案，对应库容0.55亿m3。调洪演算时取防洪限制水位为207m。根据下游防护标准（P=1%），确定水库的防洪高水位208.61m，根据洪水资料设计洪水（P=0.2%），确定水库的设计洪水位211.64m。校核洪水位（P=0.1%）为212.02m。 白莲崖水电站重力坝非溢流坝段坝顶高程215m，最大坝高82m，坝底宽68m。溢流坝段堰顶高程202m，溢洪道净宽60m，闸门采用平板闸门10.3（宽）×7（高），闸墩长14.5m，厚3m，溢洪道总长78m，坝底宽为85.8m。大坝挡泄水建筑物轴线总长300m。 利用电力电能平衡的方法确定水电站装机容量为8.6万kW，两台机组，单机容量4.3万kW。水轮机型号为HL220-LJ-380；厂房为坝后式厂房，主厂房总宽定为20m，总长55m。水轮机安装高程为139.845m。起重机选用电动双钩桥式起重机，最大起重量选2×150吨，跨度选用16m。装配场长度取20m。副厂房是为保证水电站正常运行需要，设置在主厂房下游侧。主要布置各种机电辅助设备、房间、生产间和必要生活设施房间。副厂房总宽6.6m。 电站建成后主要担任华东电网调峰并供电丽水、温州将使丽、温两地区通过220千伏输电线路联系，形成浙南电力系统。此外，电站的建设，将带动当地工农业发展，为当地居民创造就业条件，改善当地社会经济，促进当地以及周围地区的发展。 关键词：兴利调节；调洪演算；水库调度；挡水建筑物；泄水建筑物；稳定计算；应力计算；水轮机选型；厂房设计。 ABSTRACT Bailianya Reservoir is located in the midstream of Manshui River which is 189km away from the river mouth of Pea river. It is an annual regulation reservoir. This hydroelectric power station is mainly designed for generating electricity. It gives consideration to shipping, transporting wood and preventing waterflood as well. The water retaining structure of Bailianya hydroelectric station is a concrete gravity dam. The damsite is at Manshui Rver. The vally at that locality is appropriately narrow. The terrain of two riversides is symmetrical. The rock is simply composed of granite porphyry which is solid and complete. So the geological condition is good. This dam’s normal water level is 208m, and its corresponding storage capacity is 0.2 billion cubic metres. The monthly average rate of flow is 19.5 cubic metres per second at the damsite due to long-term statistics. It is an annual regulation reservoir by calculation. In my graduation project the impounded level was originally designed to be 211m. Because thi