采用瞬间流法的特殊单立管排水系统排水能力研究

Study on Drainage Capacity of Special Single Stack Drainage System Using Instantaneous Flow

在34层高度的试验塔上,采用瞬间流发生器排水,考察不同排水流量在各特殊单立管排水系统中所产生的压力,探究压力与流量之间的关系,得出在瞬间流排水时系统相应的排水能力,并进行多角度分析比较。结果表明:苏维托系统排水能力明显优于DN110内螺旋+加强型旋流器系统、DN110内螺旋+普通型旋流器系统,且整个管道系统内的压力波动也明显小于另外两套系统;DN110内螺旋+普通型以及DN110内螺旋+加强型系统的排水能力明显小于我国《建筑给水排水设计规范》(GB 50015—2009)中相应最大设计排水能力值。

The instantaneous flow generator was used to drain away water from a 34-floor tower. The different drainage pressure in each special single stack drainage system was investigated. The relationship between the pressure and flow rate was explored, and the corresponding drainage capacity of the system using instantaneous flow was confirmed, with multi-angle analysis and comparison performed. The results showed that the drainage capacity of Suwito system was better than that of DN110 interior spiral ＋ strengthened cyclone system or DN110 interior spiral ＋ ordinary cyclone system, and the pressure fluctuation of the pipeline system was significantly less than that of the other two systems. The drainage capacities of both DN110 interior spiral ＋ strengthened cyclone system and DN110 interior spiral ＋ ordinary cyclone system were significantly smaller than the maximum design drainage capacity of the Code for Design of Building Water Supply and Drainage （GB 50015 -2009）.