Self-cleaning air filter

Abstract

The invention relates to the technical field of air dust removal, and discloses a self-cleaning air filter. The self-cleaning air filter comprises a dust removal filter screen and an outer frame used for fixing the dust removal filter screen; the dust removal filter screen comprises a plurality of groups of air filtering elements partitioned by partition plates to be placed in parallel, having same structures and used for separating air impurities; an air inlet and a dust discharge port are respectively formed in two ends of each air filter element; an air discharge passage is formed between the air filter element and the partition plate; one end, close to the air inlet, of the partition plate is provided with a flow choking structure; the upper side of each air filter element is provided with a flow equalizer for equalizing airflow at the dust discharge port; and each flow equalizer is of a tubular structure with a dust collection passage. The self-cleaning air filter has the advantages of being wide in application range, high in self-cleaning capacity and free of maintenance.

Description

technical field [0001] The invention relates to the technical field of air dust removal, in particular to a self-cleaning air filter. Background technique [0002] In today's society, rail transportation mainly includes diesel locomotives, electric locomotives, EMUs, high-speed rail, passenger and truck carriages, light rails, subways and other transportation carriers, and road transportation mainly includes automobiles. Their normal operation needs to inhale a large amount of air to meet the needs of combustion of internal combustion engines, heat dissipation of electronic and mechanical components, and cooling of air conditioners and other facilities. With the inhalation of a large amount of air, there are a lot of dust, catkins, plant leaves, paper scraps, plastics and other impurities in the air, which will cause wear and tear on the internal combustion engine and shorten its service life. The air channel is equipped with a dust removal device. [0003] The dust remova...

AI Technical Summary

Problems solved by technology

With the inhalation of a large amount of air, there are a lot of dust, catkins, plant leaves, paper scraps, plastics and other impurities in the air, which will cause wear and tear on the internal combustion engine and shorten its service life. The air channel is equipped with a dust removal device

[0003] The dust removal device mainly plays the role of separating the impurity air, and then obtains clean air, filters the larger particle impurities, and has a certain dust removal effect, but cannot remove small particles of dust or impurities with a small specific gravity (especially Plant debris, willow catkins, poplar catkins and other floating objects), especially in the season when there are more floating or sinking catkins, a large amount of flocculent impurities will enter, which will easily cause the dust filter to be blocked and reduce the service life of the air filter

[0004] In addition, the dust exhaust outlet of the dust exhaust channel of the existing dust removal device is often directly connected to the fan or connected to the fan through a pipe to draw the dust out through the suction of the fan. However, due to the large cross-sectional area of ​​the dust removal device and the large number of dust outlets , so it is impossible to make the suction generated by the fan evenly act on each dust outlet, especially in the case of a long dust discharge pipe, there will be a large force on both sides connected to the fan, and the role in the middle of the dust discharge pipe Due to the small force, the dust in the middle of the discharge pipe cannot be completely discharged, and the dust impurities accumulate near the dust discharge channel. If things go on like this, it is easy to cause the dust of the dust removal device to stick and accumulate at the dust discharge outlet of the dust discharge channel, and even cause the dust discharge outlet to be blocked. Affect the dust removal effect and use of the dust removal device

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