论文总字数：32783字

摘 要

给水系统采取垂直分区并联给水的方式，从市政管网以DN100的管道接水进入建筑，其中地上一层至地上五层由市政管网直供，六层至十六层由变频加压供水设备供水。建筑内排水采用污废合流制，室外也是污废合流制，经化粪池处理后排入市政污水管网，排水立管采用专用的通气立管，形成双管制排水系统，其中地上一层单独排水，二至十六层集中排水。地下室排水汇集排至集水坑，经潜污泵提升排至检查井。雨水排水系统采用重力流系统，采用外排水体制，顶层屋面雨水经雨水立管排至三四层裙房屋面，再由三四层裙房屋面雨水斗收集经由雨水立管排入市政雨水管网。建筑内消防及喷淋在火灾前10min用水由屋面消防水箱提供，取有效容积为32m³，后期灭火用水由地下一层的消防水池提供，其有效容积为835m³，分为两格。

根据查阅规范可知，本建筑属于一类高层民用建筑，耐火等级为一级，室外消火栓用水量30L/s，室内消火栓用水量40L/s，火灾延续时间3h。消火栓充实水柱高度12m，水龙带长度25m，消防立管管径为DN100。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。根据查阅规范可知，本建筑地上部分为中危Ⅰ级，地下部分为中危Ⅱ级，整个喷淋系统分为两个区，负一至二层为低区，三至十六层为高区。该建筑采用湿式自动喷水灭火系统，喷淋系统设计流量22L/s，实际流量为33.8L/s。报警阀设于地下室泵房旁，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。

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

The water supply system adopts the way of vertical division and parallel connection, from the municipal pipe network to the DN100 pipe to connect water into the building, in which the ground floor to the ground five layers are directly supplied by the municipal pipe network, and the six to sixteen layers are supplied by the frequency conversion pressurized water supply equipment. The sewage combined flow system is used for the drainage in the building, and the waste water confluence system is also used outside the building. The drainage riser adopts a special ventilation riser to form a double controlled drainage system, in which a single layer of the ground floor is drained. Two to sixteen floors of concentrated drainage. The Rain Water drainage system adopts gravity flow system and external drainage system. The top floor roof Rain Water is discharged through Rain Water riser to the three or four floor skirt building surface, and then collected by Rain Water bucket of three or four floor skirt house surface through Rain Water riser pipe into municipal rainwater pipe net. The 10min water used in the building before the fire is provided by the roof fire water tank with the effective volume of 32m3, and the fire extinguishing water in the later stage is provided by the fire tank on the ground floor. The effective volume is 835m3, which is divided into two boxes.

According to the criterion, this building belongs to a kind of high-rise civil building, the fire resistance grade is first class, the water consumption of outdoor hydrant is 30L / s, the water consumption of indoor hydrant is 40L / s, and the duration of fire is 3 hours. The water column height of hydrant is 12 m, the length of hose is 25 m, and the diameter of fire riser is DN100. A test hydrant is installed on the roof. Each indoor hydrant box is equipped with a remote fire pump button. According to the criterion, the above ground part of the building is medium dangerous class I, and the underground part is medium dangerous grade ⅱ. The whole spray system is divided into two areas, the negative one to the second floor is the low area, and the third to the sixteenth floor is the high area. The building uses a wet automatic sprinkler system with a designed flow rate of 22 L / s and an actual flow rate of 33. 8 L / s. The alarm valve is located next to the basement pump room, and each layer is equipped with water flow indicator, signal valve and terminal water test device, and the signals are all sent to the fire control center for processing.

Keyword: water-supply system、drainage system、hydrant system、automatic

sprinkler system、rainwater system

目 录

第一章 生活给水系统 1

1.1方案选择和系统组成 1

1.2用水定额及用水量 2

1.3给水方式 2

1.4低位水池尺寸设计 3

1.5 生活给水系统水力计算 4

1.5.1设计秒流量的计算 4

1.5.2市政直供部分水力计算 5

1.5.3变频恒压供水设备部分水力计算 10

1.6水表的选择 15

1.7市政直供部分校核 16

1.8增压供水设备选型 16

1.8.1高区给水系统所需压力 16

1.8.2增压设备 17

1.8.3减压阀的设置 18

第二章 消火栓给水系统 20

2.1消防水池 20

2.1.1消防水池的设置 20

2.1.2体积计算 20

2.2屋顶消防水箱 22

2.3消火栓保护半径 22

2.4消火栓布置间距 23

2.5消火栓的确定 23

2.6消火栓的水力计算 24

2.7水泵接合器选定 26

2.8消火栓减压计算 26

第三章 自动喷水灭火系统 29

3.1自动喷淋灭火系统的基本数据 29

3.2管道与报警阀布置 29

3.3喷头的选用与布置 29

3.4系统的设计流量 29

3.5水力计算（特性系数法） 30

3.6 增压及贮水设备 35

3.6.1 选泵 35

3.6.2消防水池、消防水箱及稳压设备 35

3.7 水泵接合器 36

3.8喷淋减压孔板计算 36

第四章 室内排水系统 39

4.1方案选择和系统组成 39

4.2排水体制及排水方式 39

4.3排水系统水力计算 39

4.3.1排水横支管水力计算 40

4.3.2排水立管水力计算 46

4.3.3排水通气立管的选用 48

4.3.4排出管水力计算 49

4.4集水坑及提升泵计算选型 49

第五章 雨水排水系统 51

5.1方案选择和系统组成 51

5.2屋面雨水排水方式 51

5.3降雨强度 51

5.4汇水面积 52

5.5设计秒流量 52

5.5.1建筑屋顶汇水面积的划分 52

5.5.2十六层裙房屋顶汇水面积的划分 53

5.5.3三层四层裙房屋顶汇水面积的划分 54

5.6雨水斗选用 56

5.7连接管选用 57

5.8立管选用 57

5.9排出管计算 58

结语 59

参考文献 60

设计计算书

第一章 生活给水系统

1.1方案选择和系统组成

根据市政管网供水压力和建筑特点，初定如下两种方案：方案一低区由市政管网直供，高区由变频增压设备供水；方案二低区由市政管网直供，高区由加压泵和高位水箱供水。特将以上两种给水系统分区方案进行比较：

方案一：变频增压设备供水

请支付后下载全文，论文总字数：32783字