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Low-noise efficient axial-flow fan

An axial-flow fan, low-noise technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of complexity, limited noise reduction, and difficulty in achieving effective fan noise reduction, and achieves improved efficiency and light weight. , the effect of reducing material cost and processing cost

Active Publication Date: 2018-12-11
重庆格鑫曼科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many noise reduction methods are more complicated to implement on site, and the noise reduction effect is limited, so it is difficult to achieve effective noise reduction of fans

Method used

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  • Low-noise efficient axial-flow fan
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  • Low-noise efficient axial-flow fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in further detail below by means of specific embodiments:

[0023] The reference signs in the drawings of the specification include: silent cover 1, motor 2, blade 3, current collector 4, hub 5, fixed plate 6, motor shaft 7, carbon steel inner layer 8, carbon steel outer layer 9 , Porous foam metal plate 10, connecting rod 11, fixed rod 12, wedge block 13, inner cam ring 14, roller 15, slide bar 16, pressing spring 17, sawtooth 18.

[0024] Embodiment: the low-noise high-efficiency axial fan in this scheme, such as figure 1 and figure 2 As shown, it includes a cylindrical silent cover 1, and the silent cover 1 is composed of a carbon steel inner layer 8, an inner layer of glass wool, a porous foam metal plate 10, an outer layer of glass wool, and a carbon steel outer layer 9. In order to reduce the Mechanical vibration noise between the carbon steel inner layer 8 and the porous metal foam plate 10, between the carbon steel inne...

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PUM

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Abstract

The invention belongs to the field of axial-flow fans and particularly discloses a low-noise efficient axial-flow fan, comprising a mute enclosure in tubular shape; the mute enclosure is formed by combining a carbon steel inner layer, a porous foam metal plate and a carbon steel outer layer in sequence; an inner layer of glass wool is arranged between the carbon steel inner layer and the porous foam metal plate; an outer layer of glass wool is arranged between the carbon steel outer layer and the porous foam metal plate; a motor is mounted in the mute enclosure; a spindle of the motor is sleeved with a hub; a plurality of blades are fixedly connected to the periphery of the hub; the rear edge of each blade is in serrated shape. The low-noise efficient axial-flow fan allows the noise generated itself to be effectively reduced.

Description

technical field [0001] The invention belongs to the field of axial flow fans, and in particular relates to a low-noise and high-efficiency axial flow fan. Background technique [0002] Axial flow fan is a kind of machine that converts the energy of the prime mover into gas energy. It is widely used in mining, chemical industry, cement, environmental protection dust removal, textile and other industries, and has a wide range of uses. Traditional fans use a lot, consume a lot of power, and cause serious noise pollution. Therefore, the development of environmentally friendly, low-noise, energy-saving and high-efficiency fans has become a top priority for the development of fans in my country. [0003] During the operation of the axial flow fan, aerodynamic noise such as rotating noise and eddy current noise and mechanical noise will be generated, and the noise is broadband noise. Noise pollution poses serious harm to people, animals, instruments and buildings. The state has pr...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/66F04D29/38F04D29/02F04D29/00F04D27/00
CPCF04D25/08F04D27/002F04D29/002F04D29/023F04D29/388F04D29/664F04D29/668
Inventor 黄学满
Owner 重庆格鑫曼科技有限公司
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