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目前,由于我国大力发展电力牵引,因而电力机车通过长隧道要否机械通风,成为人们所关心、需待研究解决的问题之一。现搜集一些国内外资料,对此进行探讨,供作参考。国外铁路长隧道的运营通风,在1890年以前,大多是靠自然风及列车的活塞作用,并在隧道内安设供维修工人临时用的吸风装置来解决。1890～1917年间,采用洞口喷咀式机械通风较为普遍,但随着运量的不断增加,5公里以上的长隧道用这种通风方式效果不甚好,因此欧洲各国都采用电化来解决运营通风问
At present, due to the development of electric traction in our country, whether or not the electric locomotive passes through the long tunnel requires mechanical ventilation has become one of the issues to be studied and solved. Now collect some domestic and foreign information, to explore this for reference. Before 1890, the operation of long tunnels of foreign railway ventilation was mostly solved by the natural wind and the piston action of trains, and the installation of temporary suction devices for maintenance workers in the tunnels. 1890 ~ 1917, the use of orifice nozzle mechanical ventilation is more common, but as the volume continues to increase, more than 5 km long tunnel with this ventilation is not very good, so all European countries are using the electrochemical ventilation to solve operational ventilation ask