摘要
本设计为向阳口二级水电站厂房设计与仿真，该电站为引水式日调节电站，在华北电网上担任峰荷与调相任务，对改变华北地区用电紧张状态，充分合理利用水能资源，缓解电力系统高峰供电的紧张状态起积极作用，向阳口II级电站的兴建，对提高京津唐电力系统的灵活性，充分利用水能，具有十分重要的意义。电站首部为拦河坝，位于丰沙线沿河城车站和幽州车站之间的大青岩坝址上游距幽州车站2.8km，下有距沿河城车站3.2km，拦河坝采用重力坝，
电站首部为拦河坝，位于丰沙线沿河城车站和幽州车站之间的大青岩坝址上游距幽州车站2.8km，下有距沿河城车站3.2km，拦河坝采用重力坝，
本设计主要包括：最大水头确定水轮机的特征水头：、最小水头、设计水头。由电站的正常蓄水位，下游水位和死水位就可以求得水轮机的特征水头。机组台数可以根据单机容量求得。根据电站的主要水力特点以及水轮机系列型谱，参照单机容量确定水轮机型号。计算并选择了水轮机的转轮直径和水轮机的转轮转速，并且计算出了安装高程，吸出高等参数。由水头选择蜗壳类型，确定蜗壳的主要参数：包角大小、断面形状、进口断面流速。通过水力计算（其中中间断面的顶角点、底角点采用直线变化规律），确定各中间断面尺寸。根据电站要求选择弯肘型尾水管。本设计采用标准混凝土肘管，参照标称直径确定各部分尺寸。
枢纽布置中包括综合地质、地形、水文等各方面的要求，确定坝型、坝线以及枢布置，尤其是厂房的布置进行了仔细的研究讨论，最后确定厂房布置在右岸，溢流坝布置在左岸。此外还进行了开挖，地基处理等问题的设计。
厂房布置中包括确定了厂房各层高程，主厂房、副厂房、安装间的平面尺寸，以及发电机层、水轮机层、尾水管层的平面布置。此外还有桥吊、房顶及一些细部构造的设计。
本设计所有设计内容均是按所学水工建筑物和水电站的基本知识所设计，所有设计均符合现行设计的有关规范规定。
关键词：蜗壳；尾水管；装机容量；转轮直径；安装高程；厂房布置；水电站。
Abstract
The design of hydropower plant as xiangyang mouth level design and simulation, the power station, adjust for water type, in north China grid as load and the task, to change PRCPM huabei region, sufficient electricity tensions and rational utilization of water resources in the power system of power to ease tensions peak, the positive role of grade II xiangyang mouth, to improve the flexibility of tianjin tang power system, make full use of water, has the extremely vital significance. First, in LanHeBa for hydropower station shacheng line along the river and the city state between the upstream dam is quiet state QingYan km, under the 2.8 km away from the town, by the LanHeBa 3.2 dam,
First, in LanHeBa for hydropower station shacheng line along the river and the city state between the upstream dam is quiet state QingYan km, under the 2.8 km away from the town, by the LanHeBa 3.2 dam,）
This design is mainly include: the biggest characteristic of hydraulic head head: sure, the minimum head, head of design. By the power of the normal storage level and lower level and the level of death can be obtained the turbine characteristic head. Units can be obtained according to the capacity of the number. According to the characteristics of the main power hydraulic turbine using matlab, and the series of capacity to determine the turbine model. Calculation and choice of turbine turbine runner diameter and the wheel speed, and calculated the installation elevation, epispastic higher parameters. By the head, spiral type selection of main parameters: spiral Angle cross-section shape, size, imported section velocity. Through the hydraulic calculation of the middle section (including vertex points, points: using the straight-line variation), to determine the sectional dimensions between. According to the requirement of power bend ancon tail pipe. This design USES the standard concrete pipe, elbow to determine the size of each part of nominal diameter.
The general layout of comprehensive geology, topography, including various aspects of hydrology, determine the dam, dam axis and decorate, especially the plant layout carefully studied and discussed, the final determination building layout, decorate in the right side of the zeya. In addition to the excavation, foundation treatment, etc.
In the workshop arrangement including has determined workshop each elevation, main workshop, vice-workshop, installment plane size, as well as generator level, hydraulic turbine level, draft tube level plane layout. In addition also has the bridge to hang, the roof and some detail structure design.
The this design all design content is presses studies the hydraulic engineering structure and the hydroelectric power station elementary knowledge designs, all designs conform to the present design related standard stipulation.
Key word: Volute; Draft tube; Installed capacity; Runner diameter; Installs the elevation; Workshop arrangement; Hydroelectric power station.
