Air filter

Abstract

The invention belongs to the field of air filtering, and particularly relates to an air filter. The air filter is provided with an air flow-in end, an air flow-out end, a filtering medium and a support part used for supporting the filtering medium, wherein the support part is arranged between the air flow-in end and the air flow-out end; a spray generating device is arranged at one side, facing the air flow-in end, of the filtering medium; spray generated by the spray generating device is positioned on a path of the air flowing from the air flow-in end to the filtering medium. The efficient filtering on the air can be realized; the effective protection on elements can also be realized.

Description

technical field

[0001] The invention belongs to the field of air filtration, in particular to an air filter. Background technique

[0002] The air filter device includes an air passage, a first air filter installed in the air passage, wherein the first air filter includes a filter frame and a filter body, the filter frame is provided with at least one passage for air circulation, The filter body includes electrostatically chargeable fibers attached to the filter frame such that the filter body achieves a predetermined flow direction from the filter frame to a predetermined flow direction relative to air flowing through the air channel at a certain distance downstream from the filter frame. The extension at the distance position. When air flows through a first air filter of the type described above, the fibers in the filter body move relative to each other, thereby rubbing against each other. The friction created when air flows over the fibers keeps the fibers electrostatic...

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