公路隧道稀释NO_2需风量确定的必要性分析

Necessity Analysis of Determination of Air Volume Demand for Nitrogen Dioxide Concentration in Highway Tunnel

本文通过分析公路隧道通风系统设计风量的确定方法,探讨公路隧道控制NO_2浓度需风量确定的必要性。结合工程案例,对公路隧道通风系统设计风量与控制NO_2浓度需风量进行了对比。结果表明:隧道通风系统设计风量并未明显大于控制NO_2浓度需风量,在进行公路隧道通风系统设计时宜进行NO_2需风量验算。

By analyzing the method to determine the design air volume demand for the highway tunnel ventilation system, necessity analysis of the determination of air volume demand for NO2 concentration in highway tunnel was explored. Case study of the quantity comparison between the design air volume demand for the highway ttmnel ventilation system and the air volume demand for NO： concentration shows that the design air volume demand for the highway tunnel ventilation system is not significantly greater than the air volume demand for NO2 concentration, so it is necessary to determine the air volume demand for NO2 concentration during the design of a highway tunnel ventilation system.