Low-efficiency air dust filter

Abstract

The invention discloses a low-efficiency air dust filter. The low-efficiency air dust filter is provided with a fixed blade with a swirling flow guiding function and a fin blade capable of rotary separation of dust and impurities at a high speed. According to the adopted scheme, the low-efficiency air dust filter comprises a semi-closed cylinder casing (1), the fin blade structure (5) capable of rotary separation of the dust and the impurities at the high speed, an inflow air swirling flow guiding device (8) and a double-bearing structure shaft (11). When outside air with the dust and the impurities enters the casing (1) from the bottom air inlet of the inflow air swirling flow guiding device (8) through swirling flow guiding blades (9), the formed swirling flow drives the inside fin blade structure (5) to conduct high-speed rotation, the dust and the impurities are discharged from a dust outlet (3) of the casing (1) under the function of poking pieces (7), and the pre-filtered air passes through a coarse filtration air outlet (10) and enters lower-stage filtration through a lower-stage filter connector (12). The low-efficiency air dust filter has the characteristics of being simple in structure, high in dust-removing efficiency and simple to maintain.

Description

technical field [0001] The invention relates to a coarse-effect air filter, in particular to an air filter with a fixed vane with a swirl guiding function and a wing vane capable of rotating and separating large particle dust at high speed. Background technique [0002] The air dust filter is a pre-filter device that can roughly filter the air entering the engine and remove larger particles and impurities in the air. The main purpose is to prolong the service life of the air filter, reduce the frequency of filter replacement, reduce the risk of engine wear, reduce fuel consumption, and improve engine efficiency. [0003] The air dust filter is mainly used for large machinery such as passenger cars, medium and heavy trucks, and agricultural tractors. When the piston machinery (internal combustion engine, reciprocating compressor, etc.) inside them is working, if the inhaled air contains dust and other impurities, it will aggravate the wear of the parts , especially in places...

AI Technical Summary

Problems solved by technology

[0004] At present, the air dust filter can be divided into filter screen, filter bag, swirl and other forms. The common problems are as follows: 1. The filtration efficiency is low. Generally, the coarse-effect filter of the filter screen will soon be used. The purpose of high-efficiency pre-filtration cannot be achieved due to dust clogging; 2. The cyclone coarse-effect dust collection device is frequently maintained, especially when there is a dust cup for storing filtered dust inside the pre-filter, manpower is required to regularly open the pre-filter for cleaning maintenance, relatively troublesome

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