地铁区间隧道事故通风网络分析

地铁站台空间，地铁运行隧道空间都属于地下封闭空间，并存在较大的人流量；一旦发生列车故障停车或者火灾等事故，则需要对事故区域进行事故通风。分析介绍了地铁区间隧道网络的运行任务和模式，利用重庆轨道交通3号线某区间隧道，以某着火工况为例，对其事故通风进行网络分析。通过区间隧道的网络分析，可以实现选择满足各种事故工况的排风机，使其满足各工况下压力、流量的变化，同时又能够保证节能高效的运行。

Network Analysis of Metro Tunnel Eemergency Ventilation

Metro platform and metro running tunnels are undergound enclosure space, with large passenger flow rate. Once it happens that there is a scram or fire, emergency ventilation is necessary. In this paper, the metro running task and mode of metro tunnel network are introduced. Based on a tunnel of Chongqing Metro Line 3 and using fire condition as an example, this paper analyses emergency ventilation network. And according to that, the exhaust fan can be choosed, which is satisfied with every kind of emergency conditions. At the same time, the exhaust fan is able to meet the pressure and flow rate and it runs with high efficiency.