Dust removal device

Abstract

The invention discloses a dust removal device of carbon dust of an electric generator. The dust removal device comprises a dust collection hood, wherein the dust collection hood is arranged on the periphery of an electricity collecting ring of the electric generator, a sealed cavity is formed between the dust collection hood and the electricity collecting ring of the electric generator, a dust suction inlet communicated with the sealed cavity is arranged on the dust collection hood, a dust block along the radial direction of the electricity collecting ring is arranged in the sealed cavity, the position of the dust block is corresponding to the position of the dust suction inlet, the dust suction inlet is oblique relatively to the tangential direction of the electricity collecting ring, and an intersection angle between the dust suction inlet and the tangential direction of the electricity collecting ring ranges from 20 degrees to 60 degrees. According to the dust removal device, the dust block is added in the sealed cavity formed between the dust collection hood and the electricity collecting ring, the dust block is used to block the carbon dust which flows along with air in the sealed cavity, enables the carbon dust to flow in the dust suction inlet, and improves dust removal effects, and simultaneously due to the fact that the dust suction inlet is oblique relatively to the tangential direction of the electricity collecting ring, the dust suction inlet conforms to a fluid mechanics principle, the carbon dust can smoothly enter a dust collection pipeline through the dust suction inlet, and the dust removal effects of the dust removal device of the carbon dust of the electric generator are brought into full play.

Description

[0001] technical field [0002] The invention belongs to the technical field of generators, and in particular relates to a generator carbon powder dedusting device used for dedusting the carbon powder generated by the friction between a collector ring and a carbon brush of a generator. [0003] Background technique [0004] During the operation of the hydro-generator unit, since the collector ring is always rotating at high speed, and the carbon brush device is a stationary part, the high-speed rotating collector ring is in contact with the carbon brush in the carbon brush device. Friction, this kind of friction will inevitably lead to carbon brush wear, carbon brush wear will form a large amount of fine carbon dust, carbon dust diffuses in the carbon brush chamber of the generator, and rotates under the drive of the air flow, if the dust is not removed , will inevitably enter the interior of the generator with the rotation of the unit, and further pollute the stator windin...

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Problems solved by technology

[0007] Although the above two patents applied by the applicant have solved the problem of carbon powder dust removal to a large extent, because the carbon powder is in a flowing state driven by the air flow, the dust removal treatment device is sucking the carbon powder in the closed cavity. At this time, part of the toner will still remain in the closed cavity driven by the airflow, and cannot be drawn out by the dust removal device, which greatly affects the dust removal effect.

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