Deflector

Abstract

The invention discloses a deflector for a wind supply equipment, which can effectively recover the dynamic pressures of rotating flows generated by axial-flow and mixed-flow fans of different types as static pressures and comprises a plurality of radial bars connected between a central disc and a round outer frame and a plurality of concentric bars alternately connected with the plurality of radial bars, wherein the number of the radial bars is prime to the number of the blades of the fan of the wind supply equipment; and the efficiency of the wind supply equipment can be improved by optimizing the law of the change of the radial bars along with the chord length and wing chord of a radial wing-shaped structure and the included angle of the rotating shafts of an axial-flow fan. The deflector can be used in the axial-flow or mixed-flow fans of different types.

Description

Technical field [0001] The invention relates to a diversion device of an air supply device, in particular to a diversion device installed on an air supply device provided with an axial flow or mixed flow fan. Background technique [0002] The outdoor unit of the air conditioner is a blower equipped with an axial fan. The structure of the outdoor unit of the air conditioner is generally a box-shaped shell, and an axial fan is generally arranged inside. On the exhaust side of the axial fan, the box shell is provided with an exhaust port and a fan protection cover. The fan guard is a grid structure with different shapes and is made of metal and synthetic resin. [0003] It is known that the direction of the air flow after passing through the axial flow fan is not axial, that is, there is a velocity component in the circumferential direction. In order to recover this part of the energy, the industry often adds static guide vanes before and after the impeller, so that the direction of...

AI Technical Summary

Problems solved by technology

Although the patent application stipulates that the radial strips have corresponding constraints on the blown airflow and curvature at the position of 70-80% of the outer diameter of the fan, that is, around the maximum velocity of the blown airflow, the design methods of axial flow fans are different at present, and different axial flow The speed distribution of the fan at the corresponding position is also different, and the rotational kinetic energy loss of the axial flow fan is not necessarily the largest loss near 70-80%, so this patent application cannot achieve the effect of improving the efficiency of various axial flow fans , it is impossible to convert the rotational kinetic energy at all positions of the fan outlet into static pressure to a greater extent, which needs further improvement

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