摘要
针对工程中常出现的防、排烟系统末端风口风量不足以及防烟场所压力控制的相关问题,通过对不同规模的防、排烟系统漏风量在风速变化的工况下进行计算,分析了防、排烟系统常闭风口、风阀、风管漏风量对于防、排烟系统运行的显著影响,探讨了漏风量与风管阻力的相互影响,以及排烟系统负担排烟区域面积与系统漏风量的关系,提出了高层建筑防、排烟系统风管设计的建议计算风速,以及前室、防烟楼梯间压力控制的方法,为工程实践中的相关问题提供了参考数据和有效的解决途径.
This article directs at some smoke control system problems usually in projects such as lower wind volume of duct system end diffuser,and unsuitable pressure control of smoke-proof place.Through leakage air volume calculations of various smoke control system with different duct wind speed,it analyzes hsow significantly the air leakage from normally closed diffuser or fire valve and duct influence on the smoke control system operation,and discusses the interaction effect between leakage air volume and duct resistance,and the relation between the smoke exhausted area and leakage air volume.It also suggests advises the duct wind speed of smoke control system calculation in high-rise buildings,and puts forward different pressure control methods of atria and smoke-proof staircase,so to provide some reference data and effective solutions for project related problems.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2017年第5期722-727,739,共7页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
关键词
#防排烟系统
漏风量
计算风速
风管阻力
压力测点
压力控制
smoke control system
leakage air volume
wind speed calculation
duct resistance
pressure test point
pressure control
