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模拟分析了地铁隧道空气温度分布规律。根据排热机理,推导出车站排热系统排热效率的计算式。提出对排热风口布置及风量分配的优化建议,指出排热风口不应正对列车发热源,而应该沿活塞风气流方向布置于热源下游;排热风口的排风量应该从列车尾部至头部逐渐增大。
The distribution of air temperature in subway tunnel is simulated and analyzed. According to the mechanism of heat release, the calculation formula of exhaust heat removal efficiency of station heat dissipation system is deduced. It puts forward that the exhaust outlet should not be opposite to the heat source of the train, but should be arranged downstream of the heat source along the flow direction of the piston air. The discharge air volume of the exhaust air outlet should be from the tail of the train to the head Ministry gradually increased.