【作者】 官钰希； 方正； 任少龙； 吴克建；

【Author】 Guan Yuxi;Fang Zheng;Ren Shaolong;Wu Kejian;School of Civil Engineering,Wuhan University;Shanxi Xuanshi Industrial Group CO.,LTD.,National Building Drainage System Technology Center Laboratory;

【机构】 武汉大学土木建筑工程学院； 山西泫氏实业集团有限公司全国建筑排水管道系统技术中心实验室；

【摘要】 对设副通气立管的环形通气排水系统进行了不同通气立管管径的对比实验,分别测定通气立管管径为DN100、DN75、DN50的环形通气排水系统的最大通水能力。实验中观测了各个楼层的压力波动、水封损失、排水系统通气量变化。结果表明,通气立管管径越大,环形通气排水系统通水能力越强,三种系统的最大排水流量分别为17.0L/s、14.0L/s、7.5L/s。根据《建筑给水排水设计规范》,一般排水系统的最大排水流量为8.8L/s,因此,通气立管管径DN75的环形通气排水系统可以满足高层、超高层建筑的使用需要。更多还原

【Abstract】 This paper carried on the contrast experiments of different diameter of ventilation pipe in the circular drainage system,and tested the maximum ability of system discharging with the ventilation pipe diameter respectively DN100,DN75 and DN50.In the experiment,the drainage pipe pressure fluctuation,water seal loss of sanitary wares and air volume change of the drainage system were observed.The results showed that the bigger the diameter of the ventilation pipe,the stronger the water capacity of the circular ventilation and drainage system.The maximum drainage rate of the three systems was 17.0 L/s,14.0 L/s,and 7.5 L/s.According to Code for design of building water supply and drainage,the largest discharge flow rate of typical drainage system is 8.8 L/s,therefore,the circular drainage system with ventilation pipe diameter DN75 is fully meet the needs of the use of high-rise buildings,even ultra-high-rise buildings.更多还原