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Axial flow wind wheel structure and axial flow fan

A technology of axial flow wind and wind wheel, applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of increasing the flow loss of the main air flow, the aerodynamic noise of the axial flow fan, and increasing the noise of the use environment

Pending Publication Date: 2021-01-22
GUANGDONG SUNWILL PRECISING PLASITC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] During the rotation of the blades, the air flow will generate radial flow, thereby increasing the flow loss of the main air flow, and the axial flow fan will generate aerodynamic noise, which will increase the noise of the use environment, so the above technical problems need to be improved

Method used

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  • Axial flow wind wheel structure and axial flow fan
  • Axial flow wind wheel structure and axial flow fan
  • Axial flow wind wheel structure and axial flow fan

Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0022] refer to Figures 1 to 3 As shown, an axial flow wind rotor structure includes a blade 100, and the blade 100 includes a blade tip 101, a leading edge 102, a trailing edge 103, a suction surface 104, and a pressure surface 105; it also includes a vertical winglet 200, and the vertical winglet 200 is set On the blade top 101, the vertical winglet 200 is perpendicular to the rotation plane of the wind rotor, and the thickness δ of the vertical winglet 200 satisfies: 1.5mm≤δ≤3.5mm.

[0023] The radial flow of the blade edge airflow ...

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Abstract

The invention discloses an axial flow wind wheel structure. The structure comprises blades, wherein each blade comprises a blade top, a front edge, a rear edge, a suction surface and a pressure surface; and the structure further comprises vertical winglets, wherein each vertical winglet is arranged on one blade top, the vertical winglets are perpendicular to the rotating plane of a wind wheel, andthe thickness delta of each vertical winglet is greater than or equal to 1.5mm and smaller than or equal to 3.5mm. According to the structure, radial flowing of airflow on the blade edges is blockedthrough the vertical winglets on the blade tops, so that the flowing loss of main airflow is reduced, and the effect of improving the static pressure efficiency of the fan blades is achieved; and meanwhile, the pressure gradient from the pressure surface to the suction surface of each blade tip can be reduced, generation and development of blade tip leakage vortexes and blade tip separation vortexes are suppressed, and the aerodynamic noise of the axial flow fan is lowered.

Description

technical field [0001] The invention relates to the technical field of axial flow fans, in particular to an axial flow wind wheel structure and an axial flow fan. Background technique [0002] During the rotation of the blades, the air flow will generate radial flow, thereby increasing the flow loss of the main air flow, and the axial flow fan will generate aerodynamic noise, which will increase the noise of the use environment, so the above technical problems need to be improved. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes an axial flow wind wheel structure, which can reduce the flow loss of the main airflow and reduce the aerodynamic noise of the axial flow fan. [0004] The present invention also proposes an axial flow fan with the above-mentioned structure of the axial flow wind wheel. [0005] According to an embodiment of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/38F04D29/66
CPCF04D29/325F04D29/386F04D29/388F04D29/666F04D29/667
Inventor 程守炤王垚琦叶涛覃万翔
Owner GUANGDONG SUNWILL PRECISING PLASITC CO LTD
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