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首页> 外文会议>International Conference on Fire Science and Fire Protection Engineering >Study on Natural Smoke Exhaust Characteristics of Railway Passenger Station under the Influence of Environmental Wind
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Study on Natural Smoke Exhaust Characteristics of Railway Passenger Station under the Influence of Environmental Wind

机译：环境风影响下铁路客运站天然烟雾废气的研究

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In order to study the influence of environmental wind on natural smoke exhaust characteristics, a railway passenger station is selected to study the smoke exhaust effect under windowing modes M1 which to open the windward side window and M2 which to open the leeward side window with the wind speeds of 0 m/s, 3.4 m/s and 10 m/s by FDS software. The laws of smoke movement, temperature field changes and the impact on personnel safety evacuation are compared and analyzed in the station with different working conditions. The results show that when the wind speed is 0 m/s, both windowing modes M1 and M2 can effectively discharge the smoke out of the station. When the wind speed is 3.4 m/s, the windowing mode M1 exhaust time is delayed, the environment wind suppresses the natural smoke exhaust while the windowing mode M2 exhaust time is advanced, and the environment wind promotes the natural smoke exhaust. When the wind speed is 10 m/s strong wind, both of the windowing modes M1 and M2 natural smoke exhaust are invalid. The smoke layer height drops below 2 m from the ground after 600 s, and the visibility decreases to less than 10 m after 800 s, which seriously affects the personnel safety evacuation. Therefore, for the station, the windward exhaust window should be closed and the leeward exhaust window should be opened according to the wind direction to exhaust smoke in case of fire. For strong winds, due to the failure of natural smoke exhaust in both windowing modes M1 and M2, other measures should be taken to exhaust smoke.
机译：为了研究环境风对天然烟雾排气特性的影响，选择了一个铁路乘客站，以研究窗口模式M1下的烟雾排气效果，以打开迎风侧窗，打开带风的侧窗侧窗的M2 FDS软件速度为0 m / s，3.4 m / s和10 m / s。比较烟雾运动，温度降温和对人员安全疏散的影响，并在车站中进行了不同的工作条件分​​析。结果表明，当风速为0米/秒时，窗口模式M1和M2都可以有效地将烟雾排出到车站中。当风速为3.4米/秒时，窗口模式M1排气时间延迟，环境风抑制了窗口模式M2余余时间的天然烟气排气，环境风促进天然烟雾排气。当风速为10米/秒的风风时，窗口模式M1和M2天然烟气排气都无效。在600秒之后，烟雾层高度从地面下降到2米以下，800秒后的可见度降至小于10米，这严重影响人员安全疏散。因此，对于该站，迎风排气窗应闭合，并且应根据风向打开背风排气窗口以在火灾中排气。对于强风，由于窗口模式M1和M2中的天然烟气排气的失效，应采取其他措施来排气烟雾。

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