地铁车站轨顶排热系统协同站台排烟技术试验研究

为验证轨顶排热系统协同站台排烟技术的可行性,在某地铁车站现场进行轨顶排热系统协同站台排烟试验,并与站台专用排烟管道辅助排烟模式、站台大系统排烟模式进行试验对比,综合比较各种排烟模式的效果。结果表明:采用轨顶排热系统协同站台排烟技术车站,各楼扶梯口风速均大于1.5 m/s,站台烟气排除效率高,无需开启屏蔽门排烟,满足现行《地铁设计规范》《地铁设计防火标准》等相关规范的要求,可适用于各种车站形式。站台专用排烟管道辅助排烟模式对于规模较大的车站存在楼扶梯口部风速低于1.5 m/s的风险。

Experimental Study on Cooperative Platform Smoke Exhaust Technology of Rail Top Exhaust System in Subway Station

To verify the feasibility of a railway top heat exhaust system cooperating with smoke exhaust technology, a smoke extraction experiment was carried out in a subway station and compared with the auxiliary smoke extraction mode of a dedicated smoke extraction pipe on the platform and with the platform system exhaust mode. Comprehensive comparison of the effects of smoke extraction mode. The results show that the wind speed of the opening of escalators is more than 1.5 m/s when the railway top heat exhaust system cooperates with the smoke exhaust technology. The smoke was removed with high efficiency and no need to open the platform edge door to exhaust smoke. This technology meets the requirements of the current specification and is suiTable for all types of subway stations. For large-scale stations, there is a risk that the wind speed of the opening of escalators is less than 1.5 m/s when using the auxiliary smoke extraction mode of a dedicated smoke extraction pipe on the platform.