公路隧道射流风机布置参数研究综述

Review on layout parameters of jet fans in highway tunnels

纵向通风是公路隧道主要的通风方式。射流风机的布置参数直接影响公路隧道的通风效率。本文从通风射流发展特性和通风质量评价出发,调研了射流风机组纵向布置参数、横断面布置参数和曲线隧道风机安装重要参数的相关研究成果,主要包括:纵向控制间距、横向间距、安装高度、射流角度及曲线隧道中风机偏转和偏移角度的研究。总结了风机安装参数对隧道通风效果的影响规律,并对风机安装参数的研究方向进行了展望,为公路隧道射流风机布置研究提供参考。

Longitudinal ventilation is the main ventilation mode of highway tunnels.The layout parameters of jet fans directly affect the ventilation efficiency of highway tunnels.This paper reviews the research on the longitudinal layout parameters,cross-sectional layout parameters and installation parameters of jet fans in curve tunnels from the aspects of jet development characteristics and the quality evaluation of jet ventilation.The main research parameters include:longitudinal spacing,horizontal spacing,installation height,pitch angle of jet fans,and deflection distance and angle of jet fans in curve tunnels.The influence rule of fan installation parameters on tunnel ventilation is summarized,and the research direction of fan installation parameters is prospected to provide a reference for the arrangement of jet fans in highway tunnels.