某高层住宅楼建筑给排水设计毕业论文
2022-01-07 21:05:56
论文总字数:13860字
摘 要
本设计为某高层住宅楼建筑的室外给排水管网综合,室内生活给水系统、排水系统、消火栓系统、自动喷水灭火系统设计。
给水系统:给水系统分成三区,5 层及 5 层以下为市政管网直接供水区,由市政管网直接供水;6-12 层为低区,由小区供水泵房内低区变频水泵供水;13到18层为高区,由小区供水泵房内高区变频水泵供水。
排水系统:室内排水系统采用粪便污水和生活污废水合流排放,采用双立管系统,由一根排水立管和一根通气立管组成,污废水通过重力自流排入室外污水井,进而排入化粪池,经化粪池处理后,排入市政污水管网。
雨水系统:屋顶雨水,建筑根据屋面分水线确定雨水管数量及位置,一般每个单元4根雨水管,每个雨水管汇水面积不超过200㎡。
消火栓系统:消防给水方式采用不分区给水方式,系统直接从小区室内消火栓供水环管抽水,充分利用小区室内消火栓供水环管的压力,同时设置高位消防水箱储存消防用水量。
自动喷水灭火系统:本工程在一楼商铺层设置自动喷水灭火系统,系统按中危险级 I 级设防,灭火用水量 6L/(min·㎡),持续喷水时间为 1h。自喷初期用水由室外供水环网提供,消防时用水由高位消防水箱提供。
关键词:建筑给水排水设计、给水系统、排水系统、消防系统
Abstract
This design for a high-rise residential building building of the outdoor water supply and drainage network comprehensive, indoor domestic water supply system, drainage system, hydrant system, automatic sprinkler system design.
Water supply system: the water supply system is divided into three zones. The five floors and below are the direct water supply zone of the municipal pipe network, and the direct water supply zone is provided by the municipal pipe network. Floor 6-12 is a low zone, which is supplied by the low zone variable frequency pump in the district water supply pump room. Floor 13 to 18 is a high zone, from the district water supply pump room inside the high zone variable frequency pump water supply.
Drainage system: the indoor drainage system adopts the combined discharge of fecal sewage and domestic sewage wastewater, and adopts the double-riser system, which is composed of a drainage riser and an aerated riser. The sewage is discharged into the outdoor sewage well through gravity self-flow, and then into the septic tank. After being treated by the septic tank, the sewage is discharged into the municipal sewage pipe network.
Rainwater system: the roof rainwater, the building according to the roof water distribution line determine the number and location of storm water pipes, generally each unit 4 storm water pipes, each storm water pipe catchment area does not exceed 200㎡.
Fire hydrant system: the fire water supply method adopts non-zoning water supply method. The system directly pumps water from the ring pipe of indoor fire hydrant in the community, making full use of the pressure of the ring pipe of indoor fire hydrant in the community. At the same time, high fire water tank is set to store fire water.
Automatic sprinkler system: in this project, an automatic sprinkler system is installed on the shop floor on the first floor. The system is equipped with level I of medium danger level. The water consumption for firefighting is 6L/ (min·㎡) and the continuous spraying time is 1h. The water for the initial stage of spraying is provided by the outdoor water supply ring network, and the water for fire fighting is provided by the high fire fighting tank.
Keywords: building water supply and drainage design, water supply system, drainage system, fire protection system
目录
摘要 Ⅰ
ABSTRACT Ⅱ
第一章 设计说明 1
1.1给水系统 1
1.1.1给水系统的选择 1
1.1.2系统的组成 1
1.1.3给水管道安装要求 2
1.2排水系统 2
1.2.1排水系统的选择 2
1.2.2系统的组成 2
1.2.3排水管道安装要求 3
1.3雨水系统 3
1.3.1雨水系统的选择 3
1.3.2系统的组成 4
1.3.3雨水管道安装要求 4
1.4消火栓给水系统 4
1.4.1消火栓给水系统的选择 4
1.4.2系统的组成 5
1.4.3水泵接合器及管材要求 5
1.5自动喷淋灭火系统 5
1.5.1自动喷淋给水 5
1.5.2系统的组成 5
1.5.3水泵接合器及管材要求 6
第二章 计算说明 6
2.1室内给水系统计算 6
2.1.1给水用水定额及时变化系数 6
2.1.2最高日用水 6
2.1.3最高日最大时用水量 7
2.1.4设计秒流量 7
2.1.5生活水箱容积 7
2.1.6给水管网水力计算 8
2.1.7设备的计算与选择 15
2.2室内排水系统计算 17
2.2.1一层商铺卫生间排水计算 17
2.2.2标准层卫生间排水计算 17
2.2.3标准层厨房排水计算 18
2.2.4化粪池 19
2.3雨水系统计算 20
2.3.1暴雨强度 20
2.3.2雨水设计流量 21
2.3.3汇水面积和雨水量计算 21
2.4消火栓系统计算 22
2.4.1消火栓的布置 22
2.4.2水枪喷嘴处所需水压 23
2.4.3水枪喷嘴的出流量 23
2.4.4水带阻力 23
2.4.5消火栓口所需的水压 24
2.4.6校核 24
2.4.7水力计算 24
2.4.8减压 25
2.4.9消防水箱 26
2.4.10消防贮水池 27
2.5室内喷淋系统计算 27
2.5.1喷淋布置 27
2.5.2一层商业区喷淋计算 28
2.5.3报警阀及喷头 30
2.5.4水泵结合器 30
结语 31
参考文献 32
致谢 33
设计说明
1.1给水系统
1.1.1给水系统的选择
某住宅楼建筑共十九层,建筑总高度为59m。首层设计为商铺,主体为住宅楼,第19层为机房层。在现代高层建筑中, 由于楼层的数量和高度与传统建筑有很大的不同,单纯依靠室外管道供水的压力无法满足要求, 因此需要增设生活水箱及加压泵组,可以在供水系统中加入垂直分区。如果不使用减压阀,直接采用水泵——水箱给水方式,低层供水的压力可能超过0.35MPa,容易损坏卫生器具与管道接口,并且未能有效利用市政管网水压,造成能源浪费。同时,屋顶水箱容积过大,增加了建筑荷载和投资成本。
本设计中市政管网可以提供的水压为 0.25MPa,可以根据经验法粗略估计最小压力值,一层(n=1)为0.1MPa,二层(n=2)为0.12MPa,三层(n=3)以上每增加1层,增加0.04MPa,则六层最小压力应为0.28MPa>0.25MPa,满足不了要求,所以对给水系统竖向进行分区:
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