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1、宝鸡市渭河鸡冠岩水电站初步设计摘 要：本设计是宝鸡市鸡冠岩小型水电站的一个初步设计。鸡冠岩水电站位于宝鸡市陈仓区颜家河乡北星村，是渭河干流上兴建的第一座水力发电站，属于径流式水电站。本设计部分主要在确定鸡冠岩水电站工程地质条件、地形条件、水文气象等的基础上，确定了工程的基本规模、等级和建筑物布置。进行了电站厂房的设计规划和水电站装机容量的确定，在确定电站的装机容量和年利用小时数之后，进行水轮机发电机组的选型方案比较，确定最后的装机容量和机组选型。同时进行了水电站压力前池、泄水道、压力管道、主副厂房的布置和设计。其中，在确定了工程规模等级之后，利用电站的水位流量关系和年系列数据进行水能计算，可以
2、确定电站的装机容量和年利用小时数；继而根据装机容量和年利用小时数进行水轮机的选型和比较，分析计算后找出最合适的机组选型付诸实施；根据电站的地形和地质条件和具体的水位流量条件可以将水电站的压力前池、压力管道、主副厂房的具体位置和尺寸确定。设计的过程涉及到工程水文学和水电站的基本知识，最后将实地考察过的电站坝址具体河流状况进行综合分析，得出电站设计的具体工程图。由于本科阶段知识和专业的限制，在做设计时主要进行了电站装机容量的确定和厂房的布置计算，以及电站建筑物的布置和计算。鸡冠岩水电站工程所处的河段无论从地质条件、交通运输还是施工场地来讲都很方便，因此作为渭河干流上的小型电站，其优越性可见。通过水
3、电站的设计，可以看出电站的修建不会淹没耕地，不会移民，没有污染，是一项效益宏观的工程。关键词 ：鸡冠岩水电站；初步设计；装机容量；总体布置；电站厂房摘 要BAOJI WEIHE COCKSCOMB ROCK STATIONS PRELIMINARY DESIGN Abstract：This design is a preliminary design Baoji Cockscomb Rock of small hydropower stations. Cockscomb Rock Station is located in Baoji City Chencang YanJiahe, North
4、 Star Village, it is the first hydroelectric power station built on the Weihe River , which belongs to Hydropower station.The design in determining majors Cockscomb Rock Station the basis of hydropower engineering geological conditions, topography, hydrology and meteorology, on the scale to determin
5、e the basic engineering, grading and building layout. Were designed to determine the planning and hydropower installed capacity power station plant, in determining the number of installed capacity and annual power plant utilization hours after the selection program conducted turbine generator set, d
6、etermines the final capacity and unit selection. Station also carried out before the pressure tank, draining tract, pressure piping, main and auxiliary plant s layout and design. Among them, in determining the size of the project level after the water level and flow relationships in the data series
7、hydro power plants were calculated to determine the installed capacity and annual power plant utilization hours; Then be based on the selection and comparison of turbine capacity and annual utilization hours, after analysis and calculation to identify the most appropriate unit selection implemented;
8、 according to the terrain and geological conditions and specific power plant level and flow conditions can be determined before the pressure hydropower pool, pressure piping, main and auxiliary plant specific location and size. Design process involves basic knowledge of hydrology and hydropower engi
9、neering, and finally visited had specific river hydropower station comprehensive situation analysis, the specific plant design drawings. Because of knowledge and professional of undergraduate restrictions, design is mainly for doing a layout calculation to determine the capacity of power plants and
10、factories, as well as layout and computing power plant buildings. Cockscomb Rock Station in which the hydropower project is very convenient from either geological conditions, transportation or construction site concerned, so as a small power station on the Weihe River, its superiority is visible. Th
11、rough the design of hydropower stations, you can see the construction of the power station will not be inundated farmland, not immigration, no pollution, is an effective macro project. Key words: Cockscomb Rock Station; preliminary design; capacity; overall layout; powerhouse目 录第一章 综合说明（1）第二章 水文气象（3
12、）2.1 流域概况和基本资料（3）2.2 水文气象（3）2.2.1 降水（3）2.2.1 径流（4）2.2.2.1径流资料一致性分析（4）2.2.2.2林家村水文站年径流分析计算（4）2.2.2.3 鸡冠岩水电站年径流分析（4）2.2.2.4鸡冠岩水电站日平均流量分析（4）2.2.3 暴雨（5）2.2.4 洪水（5）2.2.4.1.设计洪水（5）2.2.4.2.施工洪水（6）2.2.5 泥沙（7）2.2.6 水位流量关系（7）第三章 工程地质条件（10）3.1 地貌条件及第四纪地质（10）3.2 地质构造及岩石（10）3,3 工程布置区地质构造（11）3.3.1 引水枢纽处地质条件（11）3.
13、3.2 引水隧洞处地质条件（11）3.3.3 电站枢纽处地质条件（11）3.4 天然建筑材料（12）第四章 水能计算与装机容量（13）4.1 水能计算（13）4.1.1 规划水头（13）4.1.2 设计水头（13）4.1.3 多年平均发电量计算（13）4.1.4 保证出力与保证年发电量的确定（13）4.2 装机容量确定（13）4.2.1 水能计算及保证出力（14）4.2.2 装机容量及机组选型比较（14）第五章 工程总体布置（16）5.1 工程总体布置（16）5.2 引水枢纽建筑物布置（16）5.2.1 坝址、坝线布置（16）5.2.2 主要建筑物布置（17）5.2.2.1 溢流坝段（17）5.2.2.2 冲刷闸（17）5.2.2.3 进水闸（1
