An internal self-cleaning centrifugal fan

Abstract

The invention belongs to ventilation and related fields, and in particular relates to an internal self-cleaning high-efficiency centrifugal fan, which includes a casing, an impeller is arranged inside the casing, a driving mechanism is arranged on the outer wall of the casing, the driving mechanism drives the impeller to rotate through a rotating shaft, and the outer casing The inner wall is fixedly connected with a plurality of supports, and the same sliding ring is slidably connected to the plurality of supports, the upper end of the sliding ring is fixedly connected with a connecting block, the upper end of the connecting block is fixedly connected with a fin plate, and both ends of the connecting block are fixedly connected with a sliding ring. The rod, the sliding rod is slidingly connected with the inner wall of the housing, the sliding rod is fixedly sleeved with a fixed sleeve, the fixed sleeve, the side of the fixed sleeve close to the inner wall of the housing is fixedly connected with a brush plate through a plurality of fixed blocks, and the bristles and the housing The inner walls of the body are in contact with each other, the upper end of the housing is provided with an air outlet tube, and the side wall of the housing is provided with an air inlet tube corresponding to the axis of the impeller. The present invention can automatically clean and blow out the dust inside the shell during the working period of the ventilator by setting the sliding ring.

Description

technical field [0001] The invention belongs to the related field of centrifugal fans, in particular to an internal self-cleaning centrifugal fan. Background technique [0002] Centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is widely used in almost every industry, such as ventilation, dust removal and ventilation of factories, mines, tunnels, cooling towers, vehicles, ships and buildings. Cooling, ventilation and drafting of boilers and industrial furnaces, etc. [0003] Due to its wide application and different working environments, when the outside air quality is poor, the general centrifugal fan will only induce air through the impeller and then push the air out through the outlet due to its fixed structure. The air duct has no selectivity for air absorption, so that a large amount of dust, impurities, pollutants and even corrosion in the absorbed air adhere to the pipes and inside the ventilator, result...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the above-mentioned pollutants are accumulated in a large amount inside and it is difficult to clean, and to provide an internal self-cleaning centrifugal fan that automatically sweeps and discharges dust and pollutants while enhancing the air intake efficiency

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