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前言长管道多风口等量排风静压分布计算是道路隧道通风中一个技术关键问题。所谓等量排风管道就是沿等截面管道全长等间距布置的风口等量地吸取隧道内污染空气,以保持隧道通风CO卫生标准和安全行车清晰视度,它直接涉及到全横向通风方式或半横向通风方式隧道通风效果的好坏,等量排风处理不善,将导致车道内汽车排出的CO气体和烟雾浓度积聚,造成不良通风卫生条件和清晰度,当今世界上最长等量排风管道长度已达2000米以上。
Preface The calculation of the static pressure distribution of the equal air exhaust of long duct multi-outlet is a key technical issue in the ventilation of road tunnels. The so-called equal amount of exhaust pipe is equally spaced along the equal cross-sectional length of the duct layout tuyere to draw the same amount of contaminated air in the tunnel to maintain tunnel ventilation CO hygiene standards and safe driving clear vision, which is directly related to the full horizontal ventilation or Half-way ventilation tunnel ventilation effect is good or bad, the same amount of exhaust treatment is not good, will lead to the car lane emissions of CO gas and smoke concentration accumulation, resulting in poor ventilation and sanitary conditions and clarity, the longest equivalent exhaust in the world today Pipe length has reached more than 2,000 meters.