列车状态对地铁车站轨道排风系统运行工况的影响
Influence of train state on operation condition of underground railway station track exhaust systems
摘要：
通过实时监测广州地区3种不同型式地铁站车站段隧道列车状态及轨底、轨顶排风的风速与温度，考察了列车状态变化对地铁车站轨排系统的影响。结果表明：列车状态的变化会影响车站段隧道的静压，静压为正值时，排风机的排风作用增强，相反，排风机的排风作用减弱；端头连通车站及侧式车站的泄压作用会削弱列车状态对轨排系统的影响；轨排系统具有一定的轨顶排热作用，列车停站时间越长，排热作用越明显；轨底排热作用在3种型式地铁车站中均不明显。
Abstract：
Investigates the influence of train state on underground railway station track exhaust systems of three types of underground railway stations in Guangzhou, through continuously monitoring the train state of station section tunnel and the exhaust wind speed and temperature of rail bottom and top. The results show that the static pressure varies with the changing of train state within station section tunnel, the static pressure with positive value enhances the exhaust performance of fan, in contrast, a negative value has adverse effect. The decompression effect of tunnel connected island-type platform station and side platform station is benefit to weaken the influence of train state on track exhaust system. Track exhaust system has a positive effect on the heat release of upper condenser, which will be more obvious with the longer stop time of train. The heat release effect of rail bottom is not obvious in the three types of underground railway stations.
Keywords:undergroundrailwaystation,trackexhaustsystem,train,windspeed,temperature