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A centrifugal fan impeller structure

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: 2021-01-08
广东伍氏风机有限公司
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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 structure
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  • A centrifugal fan impeller structure

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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 structure of the centrifugal fan includes a wheel disc 1 , a wheel cover 2 with air inlet holes 2 a and blades 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 air channel 3a is formed between the two blades 3 . The number of blades 3 depends on the operating conditions, and in this embodiment, the number of blades 3 is 16.

[0022] Specifically, as Figure 1 to Figure 3 As shown, a gas collecting ring 4 is arranged between the wheel cover 2 and the wheel disc 1, and t...

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Abstract

The invention provides an impeller structure of a centrifugal fan, which belongs to the technical field of fans. The impeller structure 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. There are multiple blades. Between the gas ring and the air intake hole, the two ends of the gas collecting ring are respectively sealed and fixed with the wheel cover and the wheel disc; The cross-section of the ring axis is L-shaped, and the end of the blade away from the air inlet is against the inner wall of the gas collecting ring; there are connecting holes on the bottom wall of the gas collecting groove, and there are multiple connecting holes evenly distributed along the circumference of the wheel cover. There is a cone fixed on the outside, the diameter of the cone gradually decreases from the air inlet to the gas collecting ring, the number of the cone and the connecting hole is the same, and one end of the cone is connected to the corresponding connecting hole. The invention can realize small flow and high 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 structure. 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 curr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/44
CPCF04D29/281F04D29/441F04D17/10F04D29/284F04D29/30F04D29/288
Inventor 高燚
Owner 广东伍氏风机有限公司