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Centrifugal fan impeller and centrifugal fan

A centrifugal fan and impeller technology, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve problems such as noise, and achieve the effects of reducing noise, weakening pressure pulsation, and good consistency

Active Publication Date: 2012-06-27
ZOOMLION ENVIRONMENTAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a centrifugal fan impeller and a centrifugal fan to solve the noise problem caused by the structure of the existing centrifugal fan impeller

Method used

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  • Centrifugal fan impeller and centrifugal fan
  • Centrifugal fan impeller and centrifugal fan
  • Centrifugal fan impeller and centrifugal fan

Examples

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Embodiment Construction

[0030] The specific implementation manners of the centrifugal fan impeller and the centrifugal fan provided by the embodiments of the present invention will be described below with reference to the drawings in the description.

[0031] The centrifugal fan impeller provided by the embodiment of the present invention, such as figure 2 As shown, similar to the prior art, including: hub 1, blade 2 and wheel cover 3 parts, blade 2 is installed between hub 1 and wheel cover 3, the difference is that the embodiment of the present invention is different from the existing centrifugal The blades of the fan impeller have been improved, image 3 Yes, the structural schematic diagram of the blade of the centrifugal fan impeller provided by the embodiment of the present invention, from image 3 It can be seen that the impeller of the centrifugal fan provided by the embodiment of the present invention provides two types of blades, namely the backward long blade 4 and the backward short bla...

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Abstract

An embodiment of the invention provides a centrifugal fan impeller and a centrifugal fan with the same. The centrifugal fan impeller comprises a hub, blades and an impeller cover, wherein the blades are mounted between the hub and the impeller cover and include backward long blades and short blades, the long blades are larger than the short blades in flow length, the long blades and the short blades are distributed alternately between the hub and the impeller cover, and the short blades are equal to the long blades in inlet diameter. A meridian channel molded line of the impeller cover is a smooth curved line from an inlet to an outlet of each of the long blade or short blade. Using the centrifugal impeller solves the problem of noise caused by an existing centrifugal fan impeller.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a centrifugal fan impeller and a centrifugal fan. 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. The impeller is an important part of the centrifugal fan. The working principle of the centrifugal fan is that the gas passes through the centrifugal force through its impeller. The center sucks in, then flows between the blades and out. [0003] The impeller is usually composed of hub, blade and wheel cover. Taking the road sweeper as an example, the blades of the impeller of the centrifugal fan used are mostly of the backward straight blade type with 16 blades, such as figure 1 As shown, this kind of blade structure is difficult to adapt to the flow characteristics of the gas inside the fan, and it is easy to form a rigid impact of the air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30
Inventor 张斌彭林斌张劲刘之安肖庆麟罗邵均杨志彭宴波
Owner ZOOMLION ENVIRONMENTAL IND CO LTD
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