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随着交通量快速增长及车型大型化发展,全射流纵向通风模式已明显不能满足西汉高速秦岭一、二号隧道实际通风需求。为改善隧道通风状况,在秦岭一、二号隧道上行线安装了轴流风机。经对仅开启射流风机和同时开启射流和轴流风机两种工况下隧道内CO和烟尘浓度进行对比、分析后认为:开启射流和轴流风机工况下,隧道内污染物浓度较仅开启射流风机的情况下明显降低,隧道环境得到有效改善。
With the rapid growth of traffic volume and the large-scale development of models, the longitudinal jet mode of all jets has obviously failed to meet the actual ventilation needs of Qinling No. 1 and No. 2 tunnels at the Western Han Dynasty. In order to improve the ventilation of the tunnel, axial fans are installed on the upstream of Qinling No. 1 and No. 2 tunnels. After comparing the concentration of CO and soot in the tunnel under both the open jet fan and the open jet and the axial fan at the same time, the analysis shows that: under the conditions of open jet and axial fan, the pollutant concentration in the tunnel is only higher than that of the open Jet fan significantly reduced the case, the tunnel environment has been effectively improved.