某铁路隧道紧急救援站横通道防烟系统研究

Study on smoke prevention system of horizontal passageway for emergency rescue station of a railway tunnel

为了确定某紧急救援站横通道防烟风机的风量、出口风速、距离防护门的间距对防烟系统的影响,基于15点测速法,对各工况防护门处的断面风速进行数值模拟,从中选取横通道防烟系统的最佳设置方案。同时对类似实体工程疏散通道上的防烟系统进行实验测定,并和数值模拟结果进行比对,证明了数值模拟结果的可靠性。

In order to determine the influence of air volume,outlet wind speed and the distance from protection door on smoke control system in the cross passageway of an emergency rescue station,based on the 15 point velocity measurement method,the wind speed at the cross section of protection door was simulated,and the best setting scheme of the smoke control system was selected.At the same time,the smoke control system in the similar physical engineering evacuation passageway is tested and compared with the numerical simulation results.It is proved that the numerical simulation is reliable.