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Anti-dust accumulation fan with wedge-shaped blades

A dust-proof and wedge-shaped technology, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of personnel and equipment safety accidents, strong vibration, etc., and achieve reliable use, material saving, and light weight Effect

Inactive Publication Date: 2015-10-21
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once some hardened dust is shaken off by vibration, it will immediately leave the dynamic rotation balance of the fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

Method used

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  • Anti-dust accumulation fan with wedge-shaped blades
  • Anti-dust accumulation fan with wedge-shaped blades
  • Anti-dust accumulation fan with wedge-shaped blades

Examples

Experimental program
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Embodiment Construction

[0022] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0023] Such as figure 1 , figure 2 and image 3 The blade shown is a wedge-shaped anti-dust fan, including a fan impeller 11 and a casing 15. The fan impeller 11 includes an impeller back plate 7, an impeller panel 8, and blades 1. The blades 1 are arranged in a hollow wedge shape that is radial to the impeller axis and symmetrical to the center. The hollow wedge-shaped blade 1 is connected to the impeller panel 8 and welded with the impeller back plate 7 to form the main body of the impeller; the impeller panel 8 is provided with an air inlet 3, the impeller back plate 7 is fixed by rivets 5 and connected to the shaft seat 4, and the shaft seat 4 passes through the shaft hole 6 Cooperate with the fan shaft; the casing 15 is provided with an air inlet 12 and an air outlet 17. Starting from the inner side, the radius of the marking line gradually increases with the i...

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Abstract

The invention discloses an anti-dust accumulation fan with wedge-shaped blades. The anti-dust accumulation fan comprises an impeller and a shell; the impeller comprises an impeller backplane, an impeller face panel and the blades; the blades are set to hollow wedge-shaped blades; the axes of the blades are in radial and central symmetry; the hollow wedge-shaped blades are connected with the impeller face panel and are welded to the impeller backplane, so that an impeller main body can be formed; the impeller face panel is provided with an air inlet; the impeller backplane is fixed through a rivet and is connected with a shaft seat; the shaft seat is in matched connection with a fan shaft through a shaft hole; the shell is provided with an air inlet and an air outlet; the outline of the shell is in the shape of an involute; and the air inlet of the shell is provided with a cover plate. According to the anti-dust accumulation fan with the wedge-shaped blades, the blades are ingeniously designed into the wedge-shaped blades; the axes of the blades are in radial and central symmetry; and therefore, real-time cleaning of dust can be realized, and the service life of equipment can be prolonged, and safety accidents caused by dust accumulation can be effectively prevented. The anti-dust accumulation fan is especially suitable for being adopted as a large-conveying airflow wide-impeller fan with an impeller provided with large-spacing front and rear end plates.

Description

technical field [0001] The invention relates to a fan, in particular to an anti-dust fan with wedge-shaped blades. Background technique [0002] The fan is a power device for gas transportation and has a wide range of applications. However, the airflow in most applications contains a certain amount of dust. When the fan is working, when the airflow passes through the high-speed rotating fan impeller, due to centrifugal separation, the dust particles will be separated. The airflow phase deposits and adheres to the fan impeller. [0003] Since the speed of the fan impeller is generally high, as long as there is a small amount of dust in the airflow, more dust will accumulate after a long time of work, thereby changing the balance of the fan impeller rotation. If the fan impeller has no self-cleaning effect on the dust and is not cleaned in time, it will It will accumulate and gradually change the static and dynamic balance of the fan impeller, resulting in vibration. Once th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30F04D29/70F04D29/28F04D29/42
Inventor 银永忠
Owner JISHOU UNIVERSITY
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