论文总字数：27620字

摘 要

给水系统采用分区供水，1到3层为低区，由市政管网直接供水。4层到15层为高区。采用上行下给的供水方式，由变频无负压调速泵直接向高区管网供水；生活给水管管材选用铸铁管。

本办公楼为一类建筑，火灾危险等级为中危I级，地下室为中危Ⅱ级。消火栓系统不分区，管材采用普通碳素无缝钢管。自动喷水灭火系统分三个区，管材采用热镀锌钢管。采用湿式自动喷淋灭火系统，报警阀设于地下室，各层均设水流指示器、末端试水装置和信号阀，其信号均送入消防控制中心进行处理。屋顶水箱为48立方米为消防水箱，贮存10min自动喷水灭火系统、室内消火栓系统用水量。自动喷水灭火系统和消火栓系统的初期灭火由水箱供水，后期供水由地下室的消防水泵和自喷泵供水。

本工程污、废水系统采用合流制，室内±0.000以上污废水重力自流排入室外污水管，地下室污废水采用潜污泵提升至室外污水管，排水立管采用伸顶通气方式和专用通气立管通气方式；排水管采用柔性排水铸铁管。屋面雨水排放选择重力式雨水系统，雨水经屋面雨水斗收集后由雨水管排至检查井。

关键词：办公楼、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 design is the Nanjing Xingda city development office building to the drainage design, including water supply system, fire hydrant system, automatic sprinkler system five system, drainage system and roof rainwater drainage system.

The water supply system adopts the district water supply, the 1 to the 3 layer is low area, and the water supply is directly supplied by the municipal pipe network. 4 to 15 layers for high. Using up next to the water supply mode, the frequency non negative pressure water supply to high speed pump direct water supply pipe network; life selection of cast iron pipe.

This office building is a kind of building, the fire risk grade is medium danger I, and the basement is middle danger ii. The fire hydrant system is not partitioned, and the tubes are made of ordinary carbon seamless steel tubes. The automatic sprinkler system is divided into three zones, and the pipe is made of hot-dip galvanized steel pipe. A wet automatic sprinkler system is adopted. The alarm valve is located in the basement. Each layer is provided with a water indicator, a water test device at the end and a signal valve. The signals are sent to the fire control center for processing. The roof water tank is 48 cubic meters for fire water tank, storage 10min automatic sprinkler system and indoor hydrant system water consumption. At the beginning of the automatic sprinkler system and fire hydrant system, fire extinguishing by water supply, water supply by late fire pump and pump water flowing in the basement.

The project of sewage and waste water system by combined sewer system, indoor waste water more than 0 gravity gravity discharged into the sewage pipes, underground sewage and wastewater by submerged sewage pumps to outdoor sewage pipes, drainage pipes using thattop ventilation mode and special ventilation ventilation riser; drainage pipe with cast iron drainage pipe. Roof drainage of gravity type drainage systems, rainwater collected from the roof drain rain water pipe row to check well.

Key words: office buildings, water supply systems, drainage systems, fire hydrant systems, sprinkler systems, storm water systems.

目录

第一章 设计说明书

一、给水系统

1.1方案比选——————————————————————————6

1.2室内给水系统的组成—————————————————————7

1.3给水管道的布置与敷设————————————————————7

二、消防系统

2.1消火栓系统—————————————————————————7

2.1.1消火栓系统的设置场所——————————————————7

2.1.2消火栓系统的组成————————————————————8

2.1.3消火栓系统的布置————————————————————8

2.2自动喷水灭火系统

2.2.1自动喷水灭火系统的设置场所———————————————8

2.2.2自动喷水灭火系统的组成—————————————————9

2.2.3喷头的选择与布置————————————————————9

三、排水系统

3.1排水方案的选择——————————————————————10

3.1.1室外排水方案的确定——————————————————10

3.1.2室内排水方案的确定——————————————————10

3.2排水管道的安装——————————————————————10

四、雨水系统

4.1雨水排水系统的选择————————————————————11

4.2雨水排水系统的组成————————————————————11

4.3雨水管道的敷设与布置———————————————————11

第二章 设计计算书

五、给水系统计算

5.1用水量计算————————————————————————12

5.1.1给水用水定额 及时变化系数Kh——————————————12

5.1.2最高日用水量 计算———————————————————12

5.1.3最高日最大时用水量Qh计算———————————————12

5.1.4生活水箱的容积计算——————————————————12

5.2给水管网水力计算—————————————————————12

5.2.1给水管道设计秒流量qg计算———————————————12

5.2.2给水系统所需水压计算—————————————————12

5.2.3给水水力计算—————————————————————13

六、消防系统计算

6.1消火栓系统计算——————————————————————20

6.1.1计算管路的选择————————————————————20

6.1.2消火栓、水带、水枪型号的选择——————————————20

6.1.3消防管网水力计算———————————————————20

6.2自喷系统计算———————————————————————27

6.2.1喷淋布置———————————————————————27

6.2.2喷淋管线布置—————————————————————27

6.2.3自喷计算———————————————————————27

七、排水系统计算

7.1确定排水体制———————————————————————31

7.2排水水力计算———————————————————————32

7.2.1排水设计秒流量————————————————————32

7.2.2排水管水力计算————————————————————32

7.2.3 地下室排水系统计算——————————————————37

7.2.4化粪池计算——————————————————————38

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