摘要
在超高层等比例试验塔上,采用定流量排水装置排水,考察普通单立管系统在立管底部安装正压衰减器(PAPA)对系统最大正压的影响,并将其与横干管扩径条件下系统最大正压的衰减效果进行对比。结果表明:仅在排水立管底部设置PAPA时系统的最大正压衰减并不明显,其衰减效果较横干管扩径条件下最大正压的衰减效果差。
The constant flow generator was used to drain away water from a full-scale high-rise tower. The influence of positive air pressure attenuator （PAPA） installed at the base of vertical stack on the maximum positive pressure of the drainage system was investigated. The attenuation effects of the maximum positive pressure caused by PAPA and the enlargement of the horizontal branch were compared. The results showed that installation of PAPA at the base of vertical stack had little influence on the attenuation of the maximum positive pressure, by which the attenuation effect was poorer than that by the enlargement of the horizontal branch.
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第7期148-150,154,共4页
China Water & Wastewater
关键词
正压衰减器
排水系统
定流量排水
普通单立管
最大正压
positive air pressure attenuator （PAPA）
drainage system
drainage with constantflow
vertical stack
maximum positive pressure
