同步换气法在地铁列车通风系统中的应用

Application of the balanced ventilation to underground railway trains

运用科特流理论分析了列车与隧道间气流对列车通风系统的影响 ,针对现有通风系统存在的问题提出了同步换气法 ;所设计的进排风一体的组合式离心风机运行试验取得成功。说明同步换气法对解决封闭空间运动过程中的通风换气和内部压力环境控制问题的参考意义。

Using the Couette turbulent flow theory analyses impacts of the air flow between the train and the channel wall on train ventilation effects and proposes a balanced ventilation method to solve the existing problems; the accordingly designed centrifugal ventilation unit into which the air supply and extract are integrated is proved successful in test operation, verifying the value of the proposed method in treatment of ventilation and pressure control of an enclosed space in motion.