高层建筑加压送风系统影响因素的实验研究  

Experimental study on the influencing factors of pressurization system in tall buildings

作　　者：冯瑞[1] 霍然[1] 王冰凌[1] 张靖岩[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,安徽合肥230027

出　　处：《消防科学与技术》2006年第2期204-206,共3页Fire Science and Technology

基　　金：国家重点基础研究专项经费资助项目(2001CB409604)

摘　　要：通过现场实验研究,讨论风机设置于建筑上部的多点加压送风系统的设计,通过数值拟合的方法得出送风管道中的风速分布,风速与加压风机的流量、送风管道的截面积以及管道的高度有关。在实际情况下,研究影响高层建筑加压送风系统的各种因素有着较为重要的意义。By field tests of pressurization air supply systems of stairwell, antechamber and common antechamber for a tall building in Hefei, then we do some mathematie analysis for this, and give a ealeulate method of eritieal velocity whieh can prevent the smoke. A design for pressurization system in a multiple injection system with upper injection is diseussed and the velocity in duet is found by approach method. This velocity has a relation with volume flux from pressurization fan, seetion area of pressurization duet and height of duct. In factual situation, there is an important assistant meaning on researehing the design of pressurization air supply system in tall buildings.

关 键 词：高层建筑 加压送风 上部送风系统 临界风速 数值拟合 

分 类 号：TU972[建筑科学—建筑设计及理论] X924[环境科学与工程—安全科学]