论文总字数：50496字

摘 要

给水系统采用竖向分区，从市政管网上接两根DN50的引入管，负一层至地上一层为市政管网直供，二层至十一层为中区1，十二层至二十一层为中区2，二十二层至三十二层为高区，中区1、中区2和高区采用变频水泵加压供水。建筑室内排水采用污、废水合流制，室外排水采用雨、污分流制，污水直接排入市政污水管，雨水经屋面雨水斗收集后流入设计的雨水回收利用装置，净化后可再利用，用于道路浇洒，庭院的花草养植或者生物滞留池。排水立管采用专用通气立管，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。建筑外排水经过化粪池，再进入市政污水管网。

根据规范，该建筑为一类高层建筑，耐火等级应为一级，室内消火栓用水量为40L/s，室外消火栓用水量为30L/s，每根竖管最小流量为15L/s，每支水枪最小流量为5L/s，火灾延续时间2h。消火栓充实水柱高度13m，水带长度25m，水枪喷嘴流量5.42L/s，消防立管管径为DN100。在屋顶层设试验消火栓2个，每个室内消火栓箱内均设有远距离启动消防泵的按钮。地下消防水池采用钢筋混凝土结构，置于地下室泵房边，有效容积603.72立方米。

本工程的自动喷水灭火系统分十个区。该建筑采用湿式自动喷水灭火系统，地上喷淋系统设计流量为20.8L/s，地下喷淋设计流量为27.7L/s。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。屋顶消防水箱（有效体积18立方米）贮存火灾初期10min自动喷水灭火系统、室内消火栓系统用水量，设于屋顶，初期灭火由水箱供水，后期灭火由地下室的消防水泵和喷淋泵供水。

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

窗体顶端

Water supply and drainage engineering design

of Nanhua high-rise building

Abstract

Water supply system uses vertical division zone.It takes two service pipes of DN50 from the municipal pipe network. Water utilization of the ground floor to 1 floor get direct supply from the municipal pipe network.Water utilization of 2 to 11floors 、12 to 21 floors and 22 to 32 floors gets the supply from the area 1, the area 2 and the high area respectively.Three areas all get pressurized water supply from variable frequency pumps . The indoor drainage uses combined system and the outdoor drainage uses separate system.Sewage goes into the municipal pipe network directly.Rainwater is collected by the roof and goes into the rainwater collection tank. After purification,the rainwater can be used inroad pouring, gardening or biological detention pool. Drain riser use specific vent stack.The basement drainage is collected by the drainage ditch to the collection puddle ,then it is piped by the submersible sewage outside the building.

Outside drainage goes into the septic tank ,then it goes into the municipal pipe network.

According to the code,this building is a high-rise building of one level and its fireresistance rating should be one level,. Waterconsumption of the indoor fire hydrant is 40L/s and the waterconsumption of outdoor firehydrant is 30L/s. the minimum flow rate of each riser is 15L/s andminimum flow rate of each water gun is 5L/s.The fire duration is 2h. The height of fire hydrant fill water spout is 13m and the water strip length is 25m.The flow of water gun is 5.42L/s and the diameter of the fire riser is DN100. In the roof layer,two test fire hydrants are set and each indoor fire hydrant box are equipped with long-distance fire pump button. Underground fire pool uses reinforced concrete structure and it is placed next to the basement pump room.Its effective volume is 603.72 cubic meters.

The automatic sprinkler system of this project has ten fire compartments. The building uses wet automatic sprinkler system.The design flow of ground spray system is 20.8L/s and the design flow of underground spray system is 27.7L/s. The alarm valve is located in the basement pump room.Water flow indicator,signal valve and the end of the test water deviceis set up on each floor.The signal are sent to the fire control center for processing. Roof fire water tank (effective volume is 18 cubic meters) storage 10min flow of automatic sprinkler system and indoor fire hydrant system and is located in the roof.The initial fire gets water from the water of tank and the latter part of the fire gets water from the fire pump and the spray pump in basement.

Key Words: water supply system; drainage system; fire hydrant system; automatic sprinkler system; rainwater system

目 录

摘要 I

Abstract II

第一部分 设计说明 1

第一章 给水系统 1

1.1 给水系统方案选择 1

1.2 给水系统组成 2

1.3 给水管道的布置与敷设 3

第二章 消防系统 5

2.1 室内消火栓系统 5

2.1.1 室内消火栓系统的选择 5

2.1.2 系统组成 6

2.1.3 设备及构筑物 7

2.2 自动喷淋系统 7

2.2.1 室内自动喷水灭火系统的选择 7

2.2.2 系统组成 8

2.2.3 喷头的选择与布置 8

2.2.4 设备的选择 9

2.2.5 喷淋系统的安装 9

第三章 室内排水系统 11

3.1 排水系统选择 11

3.2 排水系统的组成 11

3.3 主要设备及构筑物 11

3.4 同层排水管道、附件敷设和安装要求 12

第四章 雨水系统 14

4.1 雨水排水系统的选择 14

4.2 雨水排水系统的组成 14

4.3 雨水管道的敷设与布置 14

第二部分 设计计算 15

第一章 给水系统计算 15

1.1 工程概况 15

1.2 用水及卫生设备 15

1.3 给水方式 15

1.4 用水定额及用水量 16

1.4.1 住宅层用水定额及用水量（变频供水） 16

1.4.2 商铺层用水定额及用水量（直供） 17

1.5 生活水箱计算 18

1.6 设计秒流量计算依据 21

1.6.1 住宅楼设计计算依据 21

1.6.2商铺设计计算依据 23

1.7 给水系统水力计算 24

1.7.1 直供区给水水力计算 24

1.7.2 住宅给水水力计算 31

1.8 加压区供水设备选型 48

1.9 减压阀的设置 50

第二章 室内消火栓给水系统的计算 53

2.1 消防水池 54

2.2 屋顶消防水箱 54

2.2.1 水箱的容积 54

2.3 消火栓保护半径 56

2.4 消火栓布置间距 57

2.5 消火栓的水力计算 57

2.5.1 消防分区 57

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