专用通气排水系统通气机理研究初探  

Preliminary Study on Ventilation Mechanism of Specific Vent Stack Drainage System

作　　者：李博远[1] 赵珍仪 张哲 李孟[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]国家住宅与居住环境工程技术研究中心,北京100044

出　　处：《中国给水排水》2017年第21期133-138,共6页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07406002)

摘　　要：在超高层足尺试验塔上模拟超高层排水系统,采用定流量排水方式,考察DN110PVC-U专用通气排水系统内的气流分布情况,探究排水流量的改变对通气立管内风向以及结合通气管处的风向、通气流量的影响情况。结果表明,在模拟超高层住宅排水系统中,通气立管中会出现气流方向频繁反复的楼层区域,且随着排水流量的增大该区域的位置有逐渐向下移动的趋势,处在气流方向频繁反复区域的结合通气管的平均通气流量较附近其他楼层的平均通气流量高。In a super high-level full-scale experiment tower, the super-high-level drainage system was simulated and the flow pattern of the DN110 PVC-U specific vent stack drainage system was investigated using the constant flow method. The influence of the flow rate on the airflow in the vent stack and the ventilation at the yoke vent was explored. The simulation results of high-level residential drainage system showed that air direction reverse occurred in the vent stack; with the increase of the drainage flow, the occurrence of direction reverse gradually moved downward, and the average air volume in the yoke vent was higher than other floors.

关 键 词：专用通气排水系统 结合通气管 通气风向 通气机理 通气流量 

分 类 号：TU823[建筑科学]