Axial flow fan three-dimensional impeller with leaf vein structures and arc cylindrical splitter blades

Abstract

The invention discloses an axial flow fan three-dimensional impeller with leaf vein structures and arc cylindrical splitter blades. The axial flow fan three-dimensional impeller comprises a hub and further comprises curved-twisted blades and splitter blades, wherein a shaft sleeve is fixed on the hub by a connecting piece; the curved-twisted blades and splitter blades are fixedly connected onto the hub; the curved-twisted blades comprise suction surfaces and pressure surfaces; wing grooves are formed in the tops of the curved-twisted blades; leaf vein shaped grooves are formed in upper half parts of the pressure surfaces of the curved-twisted blades; the wing grooves are communicated with the leaf vein shaped grooves through air outlets; small wing protrusions are arranged at the tails of the suction surfaces of the curved-twisted blades; parabolic pinholes are formed in the curved-twisted blades; a splitter blade is arranged between every two adjacent curved-twisted blades; and the height of each splitter blade is smaller than one half of that of the curved-twisted blade.

Description

technical field [0001] The invention relates to the design field of an axial flow fan, in particular to a novel ternary impeller of an axial flow fan with a vein-shaped structure and arc-shaped column splitter blades. Background technique [0002] The working principle of the axial flow fan is to use the mechanical energy input by the motor to increase the pressure of the gas to transport and discharge the gas. Axial flow fans play a role in various fields of the national economy, widely used in factories, mines, vehicles, boats and buildings, etc., and play an irreplaceable role in ventilation, dust removal and cooling. According to incomplete statistics, all countries in the country The annual power consumption of wind turbines accounts for 20% of the country's power generation. Many of the wind turbines are either old or low in efficiency, resulting in a serious waste of electricity. It can be seen that improving the performance of wind turbines to achieve energy conserva...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to propose a new type of axial flow with vein-like structure and arc-shaped column splitter blades by controlling and reducing the generation of secondary flow, boundary layer separation, wake vortex and vortex noise in view of the deficiencies of the prior art Three-way fan impeller

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