Wind and sand proof mechanical filter for rail vehicles

Abstract

The invention relates to a wind and sand proof mechanical filter for rail vehicles. The filter comprises a frame and a plurality of filter units parallel to each other. The filter units are installed in an accommodating space enclosed by the frame. Airflow channels are formed between two of the filter units, and each filter unit comprises a front end diversion part, a middle eddy part and an end air guide part that are connected in order. The middle eddy part and / or the end air guide part are / is equipped with baffle plates extending to one side or both sides, and a dust collection and dust exhaust structure is arranged at the lower part of the frame. The wind and sand proof mechanical filter provided by the invention is designed based on inertia and centrifugal sedimentation principles, the overall structure is simple, and by arranging multiple baffle plates in the airflow channels, vortexes are formed on the windward sides of the baffle plates, thus being conducive to consumption of particle kinetic energy so as to promote particle sedimentation and filtration, the filtration efficiency is greatly improved, and the system flow resistance is small.

Description

technical field [0001] The invention relates to a mechanical filter, in particular to a wind-and-sand-proof mechanical filter for rail vehicles that can effectively prevent wind and sand, and belongs to the technical field of rail vehicle manufacturing. Background technique [0002] Rail vehicles running outside will inevitably encounter wind, sand, rain and snow. Locomotives running at high speed will inevitably drive dust particles around them, increasing the dust content of the surrounding air. In order to ensure the ventilation of the rail vehicle and at the same time prevent the sand, dust or rain and snow outside the vehicle from entering the vehicle body to ensure the normal operation of the rail vehicle, an air filter must be installed at the front entrance of the locomotive equipment compartment and ventilation system. [0003] Air filters are generally composed of multi-stage filtration structures such as first-stage filtration and second-stage filtration, and mech...

AI Technical Summary

Problems solved by technology

This mechanical filter structure has the disadvantages of low filtration efficiency, insufficient dust filtration, large flow resistance, and small ventilation volume.

In addition, when the particles are filtered to a certain extent and reach saturation, they need to be cleaned in time, otherwise the filtered particles will enter the car with the wind, causing secondary pollution

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