High-efficiency centrifugal filter screen disc and manufacturing method thereof

Abstract

The invention discloses a high-efficiency centrifugal filter screen disc and a manufacturing method thereof, belonging to the technical field of air filtering purification devices or methods based on centrifugal force. The filter screen disc disclosed by the invention comprises a screen frame composed of an outer ring, an inner ring and connecting bars, wherein a radial filter screen is arranged between the inner ring and the outer ring, a pair or multiple pairs of pressure rings which are matched with the inner ring and symmetrically mounted on the two sides of the inner ring are arranged on the inner ring, and the double-layer radial filter screen which is formed by winding filtering silk threads and symmetrically distributed on the two sides of the screen frame is arranged between the inner side of each pair of the pressure rings and the outer side of the outer ring. The manufacturing method of the filter screen disc comprises the following steps: firstly uniformly winding the filtering silk thread I between the inner ring and the outer ring along the circumferential direction, and further symmetrically fixing the two pressure rings on the two sides of the inner ring; and finally uniformly winding the filtering silk thread II between the pressure rings and the outer ring along the circumferential direction, wherein the steps can be repeatedly performed as required. The high-efficiency centrifugal filter screen disc disclosed by the invention has the advantages that the number of layers of the filter screen is doubled so as to improve the filtering effect on the basis that the overall weight and the cost are increased slightly.

Description

technical field [0001] The invention belongs to an air filtration and purification device or method using centrifugal force, in particular to a centrifugal filter net disk and a manufacturing method thereof. Background technique [0002] At present, oil fume suction and exhaust equipment has been quite popular in the catering industries such as families, restaurants, and hotels. Most equipment uses various filters or filter plates for oil fume filtration, but this static filtering method can only filter part of the oil fume, and a considerable part of oil fume and water vapor enter the interior of the equipment, eroding the inner cavity, motor, fan blades, etc. , in addition to regular cleaning, it will also shorten the life of the motor, reduce the efficiency of pumping and discharge, and increase the cost of use and maintenance. Unfiltered soot is discharged into the atmosphere, which still causes great pollution to the environment and seriously affects the physical and m...

AI Technical Summary

Problems solved by technology

[0004] The winding method of this kind of filter filament determines that the filter screen gap from the inner skeleton to the outer skeleton gradually becomes larger. If the angle between the filter filaments is small, the distribution of the filter filaments close to the center of the circle will be very dense, which will easily cause local accumulation and blockage. , if the included angle is increased, the gap between the filter filaments near the outer frame will become loose, which will affect the interception and filtration effect

[0005] There is also a speed factor. The characteristic of this filtering method is that the faster the speed is, the better the filtering effect will be. However, if the speed is too fast, it will cause disadvantages such as unstable operation, high noise, and high motor power required. If the speed is slow, it will not reach due filter effect

[0006] In actual operation, multiple double-layer filter mesh disks will also be used in series, but this will double the weight and cost of the structure, and the turbulence generated between the mesh disks during high-speed rotation will increase wind resistance and noise. To ensure the filtering effect, it is necessary to greatly increase the motor speed and power

[0007] In actual processing, it is difficult to achieve the best of the above two factors, and it is difficult to ensure the filtering effect

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