一种自然通风隔声净化窗的分析和研究

Analysis and Research on Natural Ventilation Purification and Sound Insulation Window

针对当前大气污染及噪声污染问题,提出了一种新型通风隔声净化窗的设计思路。通过对该窗流通通道进行简化,应用流体力学原理对其阻力进行了计算,分析了自然通风的可能性及换气次数与滤网等阻力之间的关系;对该产品的通风、净化及隔声性能进行了试验测试,测试结果表明该窗各项性能良好,具有一定的实际应用价值;最后,针对该窗的不同设计方案,利用数值模拟方法对安装该窗后的建筑流场进行了计算研究,比较了不同方案下的换气次数,分析了建筑内部风场分布特点,提出了优化设计改进方案。

In view of air pollution and noise pollution problems, a new type of purification and sound insulation window was proposed. The flow channel of the window was simplified to calculate the resistance by using the principle of fluid mechanics, moreover, the possibility of natural ventilation and the relationship between the air change rate and the resistance of the filter were analyzed. The ventilation, purification and sound insulation performance of the product were tested, and it was shown that the window has good performance and can be applied well in practical engineering. Finally, aimed at the different design schemes of this window, the numerical simulation method was used to calculate the flow field of a building with the window. The air change rates under different schemes were compared, and the characteristics of the wind field distribution inside the building were analyzed, also the direction of optimization design improvement were proposed.