两种不同管材的超高层伸顶通气系统排水能力对比

Comparison of Drainage Capacity between Cast Iron and PVC-U Pipes Extended Ventilation Drainage Systems for Super High-rise Building

在34层高度的试验塔上,采用定流量和瞬间流量两种排水方式,测试DN150铸铁管伸顶通气系统内的压力波动,探究系统排水能力。通过与PVC-U(硬聚氯乙烯)管伸顶通气系统对比,分析两种管材系统水力特性方面的区别。结果表明,在试验条件下铸铁管的排水能力优于PVC-U管。

By using the constant flow and instantaneous flow drainage ways in a 34-floor tower, the pressure fluctuation in DN150 cast iron pipe extended ventilation drainage system was tested to explore the system drainage capacity. Through compared with PVC-U pipe extended ventilation drainage system, the hydraulic characteristics of the two drainage systems were analyzed. The results showed that the drainage capacity of cast iron pipe was much better than that of PVC-U pipe under the test condition.