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兰州铁路局和兰州铁道学院针对DF_4型内燃机车原“旋风筒+钢板网”滤清系统效率低、储尘能力差、清洗维修频繁且费用高,不适应于风沙地区运用等问题,研制了一种新型、高效空气滤清系统。 这种系统依据由粗滤到精滤的分级滤清原理,主要由滤网、小旋风筒粗滤器、纸质精滤器及废气自动引射抽尘装置等组成。其滤网主要滤除空气中的树叶、纸片等较大杂物;小旋风筒粗滤器利用离心过滤原理对空气中的沙尘进行有效的过滤,且将含沙
Lanzhou Railway Bureau and Lanzhou Railway Institute for the DF_4 diesel locomotive original “cyclone + steel net” filtration system, low efficiency, poor dust storage capacity, frequent maintenance and repair costs and high, not suitable for the use of sand and other issues, developed a New, efficient air filtration system. This system is based on the classification of coarse filter to fine filter filtration principle, mainly by the filter, a small cyclone coarse filter, fine paper filter and the exhaust automatically cited dust extraction device and other components. The filter is mainly to filter out the leaves of the air, paper and other larger debris; small cyclone coarse filter using centrifugal filtration principle of dust in the air for effective filtration, and will contain sand