论文总字数：39702字

摘 要

本工程为镇江五菱大厦办公楼给排水设计项目。本工程位于镇江市京口区，总建筑面积约13600平米，其中：地上建筑面积11400平米，地下2200平米，占地面积1250平米。该建筑为框架结构，地上十层，地下一层，总高度39.3米，首层高度4.5米，二—十层层高3.6米。地下一层为设备用房和车库，地上部分为办公楼。其他资料详见建筑图纸。

给水系统采取垂直分区并联给水的方式，从市政管网引两根引入管进入建筑，负一层至地上五层由市政管网直供，六层至十层由无负压变频供水设备加压供水。本建筑属于二类高层民用建筑，耐火等级为二级，室外消火栓用水量，室内消火栓用水量。消火栓充实水柱高度13m，水龙带长度25m。在屋顶层设试验消火栓一个，每个室内消火栓箱内均设有远距离启动消防泵的按钮。本建筑喷淋系统采用湿式自动喷水灭火系统，地上部分为中危Ⅰ级，地下部分为中危Ⅱ级，分两个区，负一至五层为低区，六至十层为高区。报警阀设于地下室泵房内，各层均设水流指示器、信号阀和末端试水装置，其信号均送入消防控制中心进行处理。建筑内消防及喷淋在火灾前10min用水由屋面箱泵一体化消防增压稳压设提供，有效容积为，后期灭火用水由地下一层的消防水池提供，其有效容积为，分为两格。

室内外排水均采用污废合流制，经检查井直接排入市政污水管。排水立管采用通气立管的双立管排水系统，其中一层单独排水，二至十层集中排水。地下室排水经排水沟汇集排至集水坑，经潜污泵提升排至检查井。建筑屋面雨水排水系统采用内排水系统，选择重力半有压流系统，雨水经屋面雨水斗收集后由雨水立管排入市政雨水管网。

关键词：给水系统 排水系统 消火栓系统 自动喷水灭火系统 雨水系统

Abstract

This project is a water supply and drainage design project for the office building of Zhenjiang Wuling mansion. The project is located in Jingkou District of Zhenjiang City, with a total area of about 13600 square meters, including 11400 square meters of ground floor area, 2200 square meters underground and 1250 square meters. The building is a frame structure. There are ten floors on the ground and 39.3 stories underground. The height of the first floor is 4.5 meters, and the height of two to ten is 3.6 meters high. The first floor is equipment room and garage, and the upper part is office building. The other information is detailed in the architectural drawings.

The water supply system adopts the way of vertical partition and parallel water supply. From the municipal pipe network, two pipes are introduced into the building, and the fivelayers on the ground are supplied by the municipal pipe network, and the six to ten layers are pressurized by the non negative pressure variable frequency water supply equipment. The building belongs to two types of high-rise civil buildings, with fire resistance rating of two, outdoor fire hydrant water consumption and indoor hydrant water consumption. Hydrant fill water column height 13m, hose length 25m. A fire hydrant is installed on the roof, and each indoor fire hydrant box has a remote starting button for the fire pump. The sprinkler system in this building uses a wet automatic sprinkler system, the upper part of the ground is middle danger grade I, the underground part is middle danger grade II, it is divided into two regions, the negative one to five layers is low, and the six to ten layers are high. The alarm valve is located in the basement pump room. All levels are equipped with water indicator, signal valve and terminal water test device, and the signals are sent to the fire control center for processing. The fire-fighting and spray in the building before the fire 10min is provided by the integrated pressure and pressurization of the roof box pump. The effective volume is provided by the underground fire water tank in the later stage. The effective volume is divided into two compartments.

Both indoor and outdoor drainage systems are combined with sewage and sewage, and are directly discharged into municipal sewage pipes through inspection wells. The drainage riser adopts a dual standpipe drainage system with a standpipe, one of which is drained separately, and two to ten floors are centralized drainage. The drainage of the basement drains through the drainage ditch to the sump, and is lifted to the inspection well by the submersible sewage pump. The roof rainwater drainage system adopts the internal drainage system and selects the gravity half pressure flow system. The rainwater is collected by the rainwater pipe and discharged into the municipal rainwater pipe network after the rainwater pipe is collected from the roof.

Keyword: water-supply system；drainage system；hydrant system；automatic sprinkler system；rainwater system

目 录

给排水设计

摘 要

Abstract

设计说明书

第一章 项目概述

1.1 工程概况

1.2 设计依据

1.3 工程设计内容

第二章 生活给水系统方案

2.1 给水系统方案选择

2.2 给水系统的组成

2.3 给水管材和附件

2.3.1 给水管材

2.3.2 给水附件

2.4 给水管道布置和敷设

第三章 消防系统方案

3.1 室内消火栓系统

3.1.1 消火栓系统的选择

3.1.2系统组成

3.1.3设备及构筑物

3.1.4消火栓的安装

3.2 自动喷淋系统

3.2.1室内自动喷水灭火系统的选择

3.2.2系统组成

3.2.3喷头的选择与布置

3.2.4设备及构筑物

3.2.5喷淋系统的安装

第四章 生活排水系统方案

4.1 排水系统方案选择

4.2 排水系统的组成

4.3 排水水管材和设备

4.4 排水管道布置和敷设

4.5 通气管的安装

4.6 检查口、清扫口和检查井的设置

第五章 雨水排水系统方案

5.1 雨水排水系统方案选择

5.2 雨水排水系统的组成

5.3 雨水管道的敷设与布置

设计计算书

第六章 生活给水系统计算

6.1 用水定额及用水量

6.1.1 给水用水定额及时变化系数

6.1.2 最高日用水量

6.1.2 最高日最大时用水量

6.2 设计秒流量

6.3 给水系统水力计算

6.3.1 各卫生器具的流量、当量、连接管管径及最低工作压力

6.3.2 市政直供部分水力计算

6.3.3 高区无负压给水设备供水部分水力计算

6.4 水表选型

6.4.1 选型要求

6.4.2 水表选型及水头损失计算

6.4.3 水表的安装

6.5 市政直供部分所需压力校核

6.6 高区设备选型与所需压力校核

6.6.1 高区给水系统所需压力

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