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地铁隧道通风系统普遍采用远期最不利工况选型运营对能源的浪费较大,为研究相应节能措施及节能效果,通过分析不同时期客流量、列车运行模式和土壤蓄热等变化因素的影响,采用地铁环境模拟软件对不同运营时期、多种风量工况下地铁热环境进行逐时模拟。结果表明,地铁隧道内全日最高气温出现在晚高峰时刻;初期、近期关闭轨道排热风井隧道内气温满足规范要求,大量节省能耗;远期推荐排热风量选取40 m3/s;远期活塞井主要表现为引进新风。
In the metro tunnel ventilation system, the most unfavorable condition selection operation in the long term is a waste of energy. In order to study the corresponding energy-saving measures and energy-saving effects, by analyzing the changes of passenger flow, train operation mode and soil heat storage during different periods, , The subway environment simulation software was used to simulate the thermal environment of the subway under different operation periods and various air volume conditions. The results show that the maximum daily temperature in the subway tunnel appears at the late peak hour. In the early stage, the temperature in the tunnel near the exhaust ventilation well closed in the early stage, which saved a large amount of energy consumption. The long-term recommended discharge air volume was 40 m3 / s, Well mainly for the introduction of fresh air.