摘要
解决塑料排水立管通水能力的关键在于确定立管最大允许充水率α值．对不同通气条件下φ110 UPVC排水立管的通水能力及其终限流速进行实测，推导了塑料排水立管最大通水能力公式，得出塑料排水立管最大允许充水率α的推荐值为：伸顶通气管条件下0．15～0．18，专用通气立管条件下0．24～0．26．
The key to the solution of maximum discharge capacity of plastic drainage stack in building was to determine the maximum allowable fullness ratio, α of the stack. The discharge capacity of and terminal velocity in UPVC plastic stack（φ110 mm） were measured in different conditions of ventilation, and a formula of its maximum discharge capacity was derived. The recommended values of their maximum allowable fullness ratio was obtained as follows：α was taken as 0. 15 to 0. 18 for the stack with simple top-vent and 0. 24 to 0. 26 for the stack with special-purpose venting sysiem.
出处
《兰州理工大学学报》
CAS
北大核心
2007年第1期132-135,共4页
Journal of Lanzhou University of Technology
关键词
塑料排水立管
通水能力
充水率
plastic drainage stack
discharge capacity
fullness ratio
