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Efficient low-noise axial-flow impeller

An axial-flow impeller, high-efficiency technology, applied to components of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc., can solve problems such as unfavorable impeller efficiency, heavy impeller weight, and difficult processing. Achieve the effect of covering a wide range of airfoil performance

Inactive Publication Date: 2016-11-30
JIANGSU JOSUN AIR CONDITIONER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the ship industry, ship ventilation equipment is more and more valued by customers. The impeller made of traditional wing blades is heavy, and the airfoil blades are integrally cast or forged, which is difficult to process and high in cost, and is not conducive to improving the efficiency of the impeller.

Method used

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  • Efficient low-noise axial-flow impeller
  • Efficient low-noise axial-flow impeller

Examples

Experimental program
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Embodiment Construction

[0010] figure 1 , 2 A high-efficiency and low-noise axial flow impeller is shown, including a drum-shaped hub 1, a blade 5, a backing plate 4 and a petiole 2. The blade 5 is an extruded wing-shaped hollow aluminum profile. There are multiple ribs extending in length, the inner side of the blade 5 is locked and connected to the petiole 2 through the bolt piercing plate 4, the tail of the petiole 2 is the shank 3, and multiple radial connections are evenly distributed on the side of the disc Hole 6, the petioles 2 of multiple connecting blades 5 pass through the connection hole 6 through the pipe shank 3 and are connected to the drum hub 1 by nuts to compress the petiole.

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Abstract

The invention relates to an efficient low-noise axial-flow impeller which is characterized by comprising a drum-shaped hub, blades, a base plate and blade handles. The blades each are a hollow aluminum profile extruded into a wing shape, a plurality of reinforcing ribs extending along the length of the wing shape are arranged in the blades, the inner side edge of the blades penetrate and are connected with the base plate through bolts to be locked and connected onto the blade handles, and the plurality of blade handles connected with the blades are evenly distributed, locked and connected to the circumferential edge of the drum-shaped hub. The weight of the impeller manufactured by extruding the hollow aluminum profile 210 wing blades is only 50-70% that of an original cast aluminum impeller, the wing performance range coverage is wide, secondary installation angles of the blades through the blade handles are adjustable, the efficient low-noise axial-flow impeller easily adapts to marine fan design and production under different working conditions requirements, and the efficient low-noise axial-flow impeller has more advantages in octave band sound pressure level compared with an original cast aluminum impeller in difference.

Description

technical field [0001] The invention relates to an impeller, in particular to a high-efficiency and low-noise axial flow impeller. Background technique [0002] With the development of the ship industry, ship ventilation equipment is more and more valued by customers. The impeller made of traditional wing blades is heavy, and the airfoil blades are integrally cast or forged, which is difficult to process and high in cost, and is not conducive to improving the efficiency of the impeller. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a high-efficiency, low-noise axial flow impeller which is easy to process, light in weight and low in cost. [0004] The technical solution of the present invention is: a high-efficiency and low-noise axial flow impeller, which is characterized in that it includes a drum-shaped hub, blades, backing plates and petioles, and the blades are hollow aluminum profiles extruded into wing shapes. ...

Claims

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Application Information

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IPC IPC(8): F04D29/38F04D29/66
CPCF04D29/384F04D29/666
Inventor 秦伯进王喜明陈华
Owner JIANGSU JOSUN AIR CONDITIONER