给水厂毕业设计

摘要

本次毕业设计来源于工程实例，系**省**市**小坑镇供水工程。

本设计的主要内容包括：设计规模的确定、给水系统选择、给水方案比较、取水工程设计、净水厂设计、二级泵房设计和输配水管网的计算。设计书由设计说明书和设计计算书两部分组成。

拟建水厂的规模是4000m3/d。采用的处理流程为：

源水→浮船取水→管式静态混合器→网格絮凝池→斜管沉淀池→重力无阀滤池→清水池→送水泵房→城市管网。

本设计选用碱式氯化铝为混凝剂，ClO2为消毒剂。水厂出水水质要求达到《生活饮用水卫生标准》（GB5749-2006）。

水厂位于小坑镇的南方，地面标高为234.0m（黄海高程系），总占地面积9572km2，绿化面积约占总面积的45%，力争创建一个清新怡人的现代化水厂。

关键词：取水工程；配水工程；净水工程；网格絮凝池；重力无阀滤池

ABSTRACT

This design derives from real project, which is water supply project of Xiaokeng in the north of Qujiang District, Shaoguan.

The main task of this design is the preliminary design of the water supply project in Shaoguan City. The key elements of the design: design to determine the size, water supply system, water supply schemes, water engineering, water treatment plants, the secondary pumping station design and the calculation and adjustment of the water distribution network. The design book is composed of two parts: design specification and calculation.

The size of the design is 4,000m3/d. We choose the water supply process as follows:

The source of the water→Primary water pumping ship→Static mixer tube→Grid flocculating tank→Tube settler→Valveless filter→C learance pond→Secondary pumping station→City pipeline

We use PAC as coagulant and ClO2 as disinfectant. The treated water must meet "Standards for Drinking Water Quality" (GB5749-2006).

The water treatment plant is located in the south of the city, the ground elevation is 234.0m, the total area is about 9572km2, the area of the green space is about 45% of the total. We strive to create a modern and pleasant water plant.

Keywords: intake engineering; distribution system; water purification project; grid flocculating tank; valveless filter

目录

摘要.................................................................................................................................................. I ABSTRACT ........................................................................................................................................... I I 前言 (1)

第一部分设计说明书 (2)

第一章概述 (2)

1.1 编制依据及基础资料 (2)

1.1.1 编制依据 (2)

1.1.2 基础资料 (2)

1.2 采用的主要规范及标准 (2)

1.3 自然条件 (3)

1.3.1 地理位置 (3)

1.3.2 地形地貌 (4)

1.3.3 气象、水文 (4)

1.3.4 地质与地震 (5)

1.4 社会经济条件 (5)

1.4.1 大森林温泉世界经济条件 (5)

1.4.2 小坑镇经济条件 (6)

1.5 给水现状 (6)

1.5.1 总体现状 (6)

1.5.2 存在的主要问题 (7)

1.6 设计范围、服务对象、设计标准 (7)

1.6.1 设计范围 (7)

1.6.2 服务对象 (7)

1.6.3 设计标准 (7)

1.7 工程建设的必要性 (8)

第二章用水量及水资源情况 (9)

2.1 用水量预测 (9)

2.2 水资源情况 (10)

2.3 取水水源选择 (11)

2.4 供需平衡分析 (11)

第三章总体方案 (13)

3.1 水厂规模 (13)

3.2 取水工程 (13)

3.2.1 取水点 (13)

3.2.2 取水构筑物 (13)

3.3 净水工艺 (14)

3.3.1 水厂的总体设计 (14)