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A mixed flow fan with sinusoidal meridian channel

A mixed-flow fan and meridian technology, which is applied to the parts of the pumping device for elastic fluid, mechanical equipment, machines/engines, etc., can solve the problems of large amount of calculation, complex calculation, weakening the working ability of the impeller, etc., and achieve the goal of fan Large air volume, low noise, high efficiency, and compact structure

Active Publication Date: 2021-05-28
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

For high-pressure mixed-flow fans with a large change in the diameter of the impeller inlet and outlet, the arc-shaped case line and the hub line exit are axial, so the angle between the inlet and the shaft is relatively large, and after the airflow flows into the impeller, it is easy to form a low-speed vortex area in the case , weaken the impeller's ability to work
[0008] According to the ternary flow theory, the meridional shape of the impeller that is more in line with the actual flow can be designed, but the calculation is complicated and the calculation amount is large

Method used

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  • A mixed flow fan with sinusoidal meridian channel
  • A mixed flow fan with sinusoidal meridian channel
  • A mixed flow fan with sinusoidal meridian channel

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Embodiment Construction

[0039]The invention is further illustrated below with reference to the accompanying drawings:

[0040]SeeFigure 1 to 4A mixed flow fan having a sine sub-moon flow path, including the motor 18, the casing 15, the impeller 16, the vane 17, and the inner coaxial fixation provided with the inner coaxial fixation provided with guillers 17, motor 18. The hub center of the vane 17; the output shaft of the motor 18 secures the center of the connecting impeller 16; the inner side of the other end of the casing 15 is provided with the current collector 14, the collector 14 and the impeller 16; the hub of the vane 17 The same as the hub diameter of the impeller 16;

[0041]The impeller 16 is equipped with a number of blades, and the blade is disposed along the hub wire of the impeller 16; the blades relative to the edge of the hub are the casing line, the casing line and the hub line are two strings, and the mash wire and the hub line The slope at the two ends of the blade is zero, and the current c...

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Abstract

A mixed-flow fan with a sinusoidal meridian flow channel, including a motor, casing, impeller, guide vane and collector; the inside of one end of the casing is coaxially fixed with a guide vane, and the motor is arranged at the center of the hub of the guide vane; the motor The output shaft is fixedly connected to the center of the impeller; the other end of the casing is provided with a current collector on the same side as the impeller; the diameter of the hub of the guide vane is the same as that of the impeller; the invention has reasonable scheme, simple structure and easy realization , can give full play to the advantages of the mixed flow fan. The fan has compact structure, large air volume, low noise and high static pressure efficiency.

Description

Technical field[0001]The present invention belongs to the technical findings of the mixed flow fan, and more particularly to a mixed fan having a sinusoidal sub-track.Background technique[0002]The mixture is widely used in mines, textiles, metallurgy, power stations, aviation, construction and other industries. The mixed flow fan has the advantage of the axial flow fan and the centrifuge fan, which has a high pressure coefficient and flow coefficient. The air in the mixing fan does both centrifugal movement and axial movement, due to its unique structural characteristics, which makes the internal full complex secondary stream.[0003]The mixing fan is axial intraviolation, and changes in the flow direction in the impeller to flow out, and then the impeller needs to be changed to the axial entry vane or radially into the volute.[0004]The mixture of the rear volute form is similar to the centrifugal fan, and the airflow flows out of the impeller direction. Since the volute is used, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/26F04D29/40
CPCF04D25/08F04D29/26F04D29/403
Inventor 刘小民刘刚
Owner XI AN JIAOTONG UNIV
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