基于风井结构优化的高层建筑正压送风系统设计分析  

Analysis and Design of Positive Pressure Mechanical Air Supply System of High-rise Residential Building Based on Structure Optimization of Ventilation Shaft

作　　者：尹畅昱 王勇[1] 

机构地区：[1]重庆大学,重庆400030

出　　处：《制冷与空调（四川）》2013年第6期583-587,615,共6页Refrigeration and Air Conditioning

摘　　要：在保证人员疏散安全的正压送风系统设计中,地下送风系统与地上送风系统的临界层机械送风处理方法是一个难题。提出了在临界层送风竖井中增加斜板的方法,实现系统的优化设计。利用CFX建立送风井结构理论模型,利用数值计算方法对送风竖井内压力、速度等参数进行计算,得到了优化后的系统速度分布。以传统设计方法为基础,对送风系统结构优化进行了技术经济分析,提出了技术上更科学,更经济,安全性更强的设计方案。It is always a problem that how to design the air supply system of the middle floor between the underground system and the overground one in the positive pressure mechanical air supply system which ensures the safety of operator evacuation. This paper puts forward a method that makes full use of an oblique concrete board in ventilation shaft, improving the safety and simplifying the design. Build the theoretical model of structure of ventilation shaft through CFX and calculate the pressure and the resistance in ventilation shaft through numerical computation method. The results illustrate the pressure distribution in ventilation shaft and the resistance of optimized air supply system. Based on the traditional design, this paper shows the technical and economic evaluation the structure optimization of ventilation shaft and puts forward a design of positive pressure mechanical air supply system of high-rise residential building which is higher on the technological level, more economically feasible and energy efficient, satisfying the requirements of safety.

关 键 词：高层住宅建筑 正压送风系统 斜混凝土板 安全性 

分 类 号：TU97[建筑科学]