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Double-layer blade of centrifugal fan and centrifugal fan including double-layer blade

A technology of centrifugal fans and double-layer blades, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of safe strength, high rigidity requirements, difficult manufacturing, and reduced energy efficiency, so as to ensure the fan Performance, improved energy efficiency, and the effect of ensuring equipment safety

Pending Publication Date: 2017-08-18
重庆恋君节能风机技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a double-layer blade of a centrifugal fan and a centrifugal fan including the blade, so as to solve the problem of material selection encountered in large-scale, high-speed fan impellers due to high strength and rigidity requirements that affect equipment safety. , Material procurement, manufacturing difficulty, high economic cost, affecting fan performance, increasing eddy current loss, reducing energy efficiency and other issues, thereby promoting technology upgrades and expanding market areas

Method used

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  • Double-layer blade of centrifugal fan and centrifugal fan including double-layer blade
  • Double-layer blade of centrifugal fan and centrifugal fan including double-layer blade
  • Double-layer blade of centrifugal fan and centrifugal fan including double-layer blade

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Embodiment Construction

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0036] Such as figure 1 , figure 2 As shown, the present invention discloses a double-layer blade of a centrifugal fan, comprising an upper blade 1 and a lower blade 2 , one side of the upper blade 1 and one side of the lower blade 2 are bonded and fixedly connected. In an embodiment of the present invention, the upper blade 1 and the lower blade 2 can be straight plates, such as figure 1 As shown, or the upper blade 1 and the lower blade 2 can be both curved plates, such as figure 2 shown. In one embodiment of the present invention, the upper blade 1 and the lower blade 2 are fixedly connected by welding around to ensure firmness and stability of fixing the upper blade 1 and the lower blade 2 .

[0037] In th...

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Abstract

The invention relates to the technical field of fans, in particular to a double-layer blade of a centrifugal fan and the centrifugal fan including the double-layer blade. The double-layer blade of the centrifugal fan comprises an upper blade and a lower blade, and one face of the upper blade and one face of the lower blade are fixedly attached and connected. The double-layer blade of the centrifugal fan has the advantages that the blade is formed by fixedly overlapping the upper blade and the lower blade, therefore, the material selecting, material purchasing and producing and manufacturing difficulties are reduced, the cost is reduced, equipment safety and fan performance are guaranteed, the energy efficiency is improved, energy conservation and emission reduction are achieved, and the application range is widened.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a double-layer blade of a centrifugal fan and a centrifugal fan including the blade. Background technique [0002] At present, the impeller blades of centrifugal fans widely used in industries such as cement, electric power, building materials, metallurgy, petrochemical industry, coal, mining and environmental protection are all single-layer. [0003] For single-blade fans, when the machine size is large and the speed is high, due to the high strength and rigidity requirements that affect the safety of the equipment, there are currently two solutions: [0004] 1. Seek solutions starting from materials, that is, to find high-strength or large-thickness materials to match them, making material selection, material procurement, production and manufacturing more difficult, and economic costs are also greatly increased, affecting customer demand and Manufacturing supply. [0005] 2. Fin...

Claims

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Application Information

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IPC IPC(8): F04D29/30
CPCF04D29/281F04D29/30
Inventor 陈玉明王日光
Owner 重庆恋君节能风机技术有限公司
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