Water supply and drainage design of the building of Zhengling
Abstract
The main task of this design is the water supply and drainage design of a business buiding in Maanshan.The content of my design includes the design of the building water supply system, the building water drainage system, , the hydrant water supply system,the automatic sprinkler system and the building storm-water system.
The building has 1 floor underground and 25 floors overground. The height of the building is52.4m.The municipal water supply piping can provide 0.30Mpa head. After the comparison of technicality and economy, interior water supply system intends to adopt subarea water supply. Preliminary study out that building water supply system is divided three areas: -1~4 floors are low area. The pipe network supplies water directly from municipal water supply piping;5~11floors are high area.
The building water sewerage system adopt confluence .All waste water enter drain via a septic-tank.The building storm-water system adopts inner draining.
Hydrant water supply system includes interior hydrant water supply system and outside hydrant water supply system. Hydrant arranging range includes every storey, the room in front of fire elevator and roof for check. The hydrant protects a radius of 23m.
The number of sprinkler heads in the building is about 1997. The automatic sprinkler system set up 3 groups watery alarm valve. Behind the alarm valve, the piping is set as branch. Every storey set water flow indicator.
Key words:The building water supply system;Water drainage system;
Hydrant water supply system;The sprinkler system