摘要
基于城市隧道因受规划、景观、用地等限制,无法任意设置高空排风塔集中排放隧道汽车尾气,为了解决城市隧道汽车尾气污染物问题,研究隧道废气就地净化技术应用于城市隧道工程的适用性。以武汉长江隧道为研究对象,利用污染物实时在线监测仪器,如颗粒物分析仪、氮氧化物分析仪以及一氧化碳分析仪,监测隧道内汽车尾气主要污染物,得出污染物浓度特征,PM_(2.5)的日均质量浓度为257.04 g/m^(3),PM10的日均质量浓度为287.53 g/m^(3),NO_(2)的日均质量浓度为109.02 g/m^(3),均超过《环境空气质量标准》(GB 3095—2012)及其修改清单中的二级标准。结合隧道工程区域环境空气质量规划和隧道结构特征,设计城市隧道空气净化系统的技术方案并验证其净化效果。
Based on urban tunnels limited by planning,landscape,land use,etc.,it is impossible to set up high-alti-tude exhaust towers to centrally discharge tunnel vehicle exhaust.To solve the problem of automobile exhaust pollu-tants in urban tunnels,the applicability of in-situ purification technology of tunnel exhaust gas in urban tunnel engin-eering is studied.Taking Wuhan Yangtze River Tunnel as the research site,using online real-time monitoring instru-ments,such as the particulate matter analyzers,the nitrogen oxide analyzers and the carbon monoxide analyzer,to monitor the main pollutants of vehicle exhaust in the tunnel.The characteristics of pollutant concentration are obtained.The daily average concentration of PM_(2.5),PM10,NO_(2) were 257.04,287.53 g/m^(3) and 109.02 g/m^(3),which all exceeding the Standard of Ambient Air Quality(GB 3095—2012).Combined with the regional ambient air quality planning of the tunnel project and the characteristics of the tunnel structure,design the technical scheme of the urban tunnel air purification system and verify its purification effect.
作者
梅建松
刘健
周敏
唐保国
MEI Jiansong;LIU Jian;ZHOU Min;TANG Baoguo(Wuhan Bridge Group Co.,Ltd.,Wuhan Hubei 430014,China;不详)
出处
《工业安全与环保》
2024年第6期81-86,共6页
Industrial Safety and Environmental Protection
关键词
城市隧道
污染物浓度
在线监测
空气净化系统
urban tunnel
pollutant concentration
online monitoring
air purification system
