水电站厂房及电气设计

2011届热能与动力工程专业毕业设计（论文）

摘 要

本次毕业设计以大峡水电站为对象，进行水电站的厂房和电气一次部分设计。

厂房结构设计是指通过对水轮机、水轮发电机以及其他辅助设备的外形进行估算，确定厂房的平面及纵面尺寸，最后对厂内交通，设备运输，照明与通风进行了简单的设计说明。

电气部分设计是指确定电气主接线，选择变压器，计算短路电流，选择电气主设备，设计厂用电系统。

通过两部分的设计计算，最终绘制出大峡水电站的厂房纵剖面图，发电机层平面图，电气主接线图，厂用电接线图等相关图纸，对水电站有了更加深刻的了解，达到毕设的预期目标。

关键词：大峡水电站，厂房结构，电气部分。系统与屋外配电装置

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张涛：大峡水电站厂房与电气部分

ABSTRACT

The plant The graduation design is with daxia hydropower station as object to design the plant and a part of electrical of hydropower station.

structural design mes anto determine the plane and longitudinal surface of the plant though calculating the shape dimension of hydraulic turbines, hydro-generators and other auxiliary equipment, then those are been made a simple design descriptions of traffic inside the plant, transportation of equipment, lighting and ventilation.

The electric parts design refers to sure the main electrical wiring, choose transformer, calculation short-circuit current, choose the main electrical equipment, design apc system and outside power distribution equipment.

Through the two parts design calculation, these drawings, the plant vertical section pians, generators layer plans, the main electrical wiring diagrams, apc hookups and so on, are been mapped. Thus I have a more profound of hydropower station, and meet the graduation design expectations.

Keywords: daxia Hydropower Station, plant structure,

electrical parts.

2011届热能与动力工程专业毕业设计（论文）

目 录

前 言 .................................................................................................................... 1

第 1 章 主厂房主要尺寸的确定 .................................................................... 2

1.1 平面尺寸的确定 .................................................................................... 2

1.1.1 尾水管层控制尺寸的确定 ............................................................. 2

1.1.2 蜗壳层控制尺寸的确定 ................................................................. 4

1.1.3 发电机层控制尺寸的确定 ............................................................. 5

1.1.4 综合分析 ......................................................................................... 6

1.1.5 厂房宽度的确定 ............................................................................. 7

1.2 立面尺寸的确定 .................................................................................... 8

1.2.1 水轮机的安装高程 T 的确定 ..................................................... 8

1.2.2 主厂房基础开挖高程 F 的确定 ................................................. 8

1.2.3 水轮机层地面高程 1 的确定 ..................................................... 8

1.2.4 发电机装置高程 G 的确定 ......................................................... 9

1.2.5 发电机层楼板高程 2 的确定 ..................................................... 9

1.2.6 起重机的安装高程 C 的确定 ..................................................... 9

1.2.7 屋顶高程 R 的确定 ................................................................... 14

1.2.8 厂房总高度 H 的确定 ................................................................. 14

第 2 章 水电站厂房布置 .............................................................................. 15

2.1 立轴反击式机组的布置 ....................................................................... 15

2.1.1 尾水管层的布置 ........................................................................... 15

2.1.2 蜗壳层的布置 ............................................................................... 16

2.1.3 水轮机层的布置 ........................................................................... 16

2.1.4 发电机层的布置 ........................................................................... 16

2.2 机组附属设备的布置 ........................................................................... 17

2.2.1 接力器的布置 ............................................................................... 17

2.2.2 调速器和油压装置的布置 ........................................................... 18

2.3 厂房的采光、通风、交通及防火 ....................................................... 18

2.3.1 采光 ............................................................................................... 18

2.3.2 通风 ............................................................................................... 18

2.3.3 取暖 ............................................................................................... 19

2.3.4 厂内交通 ....................................................................................... 19

第 3 章 厂房内部分设备的选择 .................................................................... 20

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张涛：大峡水电站厂房与电气部分

3.1 调速器和油压装置的选择 .................................................................... 20