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A centrifugal fan impeller

A technology of centrifugal fan and impeller, which is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc. It can solve the problems of small air intake flow and small air outlet pressure, and achieve the effect of eliminating vortex

Active Publication Date: 2020-11-27
XINXIANG SIMO BLOWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing centrifugal fans, the air intake flow rate is generally proportional to the air outlet pressure, that is, the air intake flow rate is small and the air outlet pressure is also small, so the current centrifugal fans cannot meet some working conditions that require small flow and high pressure.

Method used

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  • A centrifugal fan impeller
  • A centrifugal fan impeller
  • A centrifugal fan impeller

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Embodiment Construction

[0020] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0021] Such as figure 1 As shown, the impeller of the centrifugal fan includes a wheel disc 1 , a wheel cover 2 with air inlet holes 2 a and a blade 3 arranged between the wheel disc 1 and the wheel cover 2 . Among them, the wheel disc 1 and the wheel cover 2 are arranged on the same axis, and there are multiple blades 3 that are evenly spaced along the circumferential direction of the wheel cover 2. An exhaust passage is formed between the two blades 3 .

[0022] Specifically, as figure 2 and image 3 As shown, an air guiding frame 4 is also provided between the wheel disc 1 and the wheel cover 2. There are multiple air guiding frames 4 and are evenly spaced along the circumferential direction of the wheel cover 2, an...

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PUM

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Abstract

The invention provides an impeller of a centrifugal fan, which belongs to the technical field of fans. The impeller of the centrifugal fan includes a wheel disc, a wheel cover with an air inlet hole, and blades arranged between the wheel disc and the wheel cover. An exhaust channel is formed, and an air guiding frame is provided between the wheel disc and the wheel cover. The cross-section of the air frame is in the shape of a "V", and the two sides of the air frame are respectively sealed and fixed with the wheel disc and the wheel cover. A pressurized channel is formed between two adjacent air frames, and the length of the pressurized channel is along the length of the wheel cover. Extend radially, and the width of the pressurized channel gradually decreases from the air inlet to the direction of the air guide frame. The distance D between the outermost point of the blade and the innermost point of the air guide frame is 12mm. ~16mm. The invention can increase the air outlet pressure.

Description

technical field [0001] The invention belongs to the technical field of fans, and relates to a centrifugal fan, in particular to a centrifugal fan impeller. Background technique [0002] The centrifugal fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induction of boilers and industrial furnaces; cooling and cooling of air conditioning equipment and household appliances Ventilation; drying and selection of grain; wind tunnel wind source and inflation and propulsion of hovercraft, etc. [0003] In the existing centrifugal fans, the air intake flow rate is generally proportional to the air outlet pressure, that is, the air intake flow rate is small and the air outlet pressure is also small. As a result, the current centri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/44F04D29/66
CPCF04D29/281F04D29/441F04D29/666F04D29/664F04D29/288
Inventor 高燚
Owner XINXIANG SIMO BLOWER LTD