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本文阐述了置换通风的发展进程,包括国外置换通风的起源,近代的研究成果,以及国内现在的一些发展状况。分析比较了置换通风与混合通风,地板送风以及碰撞射流通风这三种通风方式,对其通风效率,换气效率,气流组织等进行分析,得出置换通风的优缺点。最后展望了国内置换式通风的发展前景,指出结合我国国情发展置换式通风的必要性。
This article describes the development of displacement ventilation, including the origin of displacement ventilation in foreign countries, the research results of modern times, and some current developments in China. The ventilation methods of displacement ventilation and mixed ventilation, floor air supply and collision jet ventilation are analyzed and compared. The ventilation efficiency, ventilation efficiency and air flow organization are analyzed and the advantages and disadvantages of displacement ventilation are obtained. Finally, the prospects for the development of displacement ventilation in China are forecasted, and the necessity of developing displacement ventilation in light of China’s national conditions is pointed out.