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Compound impeller ventilating fan and compound impeller thereof

A composite impeller and composite technology, applied in the direction of mechanical equipment, non-variable pumps, machines/engines, etc., can solve the problems of increasing air volume partial pressure, increasing input power, increasing fan costs, etc., to reduce vortex and flow Effect of loss, large output air volume, reduction of eddy current and fluid loss

Pending Publication Date: 2019-03-08
浙江科贸实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the input power to increase the partial pressure of the air volume not only fails to improve efficiency and reduce noise, but also increases the cost of the fan.

Method used

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  • Compound impeller ventilating fan and compound impeller thereof
  • Compound impeller ventilating fan and compound impeller thereof
  • Compound impeller ventilating fan and compound impeller thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings, but it is not used as a basis for limiting the present invention.

[0021] refer to figure 1 , this figure is a schematic diagram of an embodiment of a composite impeller fan of the present invention, the fan includes a motor 1, a bracket net cover 2, a composite impeller 3 and a guide ring body panel 4, and a guide ring body panel 4 It is fixedly connected with the support net cover 1 to form an internal cavity area, the motor 1 and the compound impeller 3 are arranged in the cavity area, the support net cover 2 is fixedly connected with the motor 1, and the output shaft of the motor 1 is fixedly connected with the compound impeller 3, The composite impeller 3 includes two or more impeller units, and each impeller unit is distributed along the axial direction from the inlet to the outlet, and the blades of different impeller units are staggered in the circumferential ...

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PUM

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Abstract

The invention discloses a compound impeller ventilating fan. The ventilating fan comprises a support net cover, a motor, a compound impeller and a flow guide ring body panel, wherein the flow guide ring body panel and the support net cover are fixedly connected to form an inner cavity area, the motor and the compound impeller are arranged in the cavity area, the support net cover is fixedly connected with the motor, and an output shaft of the motor is fixedly connected with the compound impeller; and the compound impeller comprises two or more than two impeller single bodies, the impeller single bodies are front-back arranged in the axial direction from the inlet direction to the outlet direction, and the blades of the different impeller single bodies are arranged in a mutually staggered mode in the circumferential direction. In addition, the invention further discloses the compound impeller. According to the compound impeller, the efficiency of the ventilating fan is improved, and thenoise is reduced.

Description

technical field [0001] The invention relates to the technical field of ventilators, in particular to a composite impeller ventilator and a composite impeller thereof. Background technique [0002] In the field of axial fans, the impeller is a very important core component. The quality of the impeller will directly affect the performance parameters, energy consumption, efficiency and noise of the fan. [0003] Generally, the low-pressure axial flow fan adopts the form of a separate impeller stage, and the output air volume is increased by increasing the speed or increasing the installation angle. Usually, these methods of increasing the output air volume will inevitably increase energy consumption and noise. In addition, by increasing the power of the motor and adjusting the installation angle of the blades, the air volume and air pressure of the fan can be changed. However, increasing the input power to increase the partial pressure of the air volume not only fails to impro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/32F04D29/66
CPCF04D29/325F04D29/666
Inventor 裘霖富竺春晖徐天赐刘伟王煜马杰凯
Owner 浙江科贸实业有限公司
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