Horizontal axle wind mill with blade tip winglet

Abstract

The invention relates to a wind power generating device, in particular to a horizontal-shaft wind machine with a blade tip winglet, more particular to a horizontal-shaft wind machine blade tip tooth-shaped winglet device which has an automatic speed-reduction regulatory function, can improve the wind wheel aerodynamic characteristic, the structural dynamic characteristic, the blade surface dynamic load distribution and the blade tip vortex shedding frequency of the wind machine and can reduce the radiation noise of a wind wheel. The horizontal-shaft wind machine blade tip tooth-shaped winglet device comprises a blade (2), a hub (3), an engine room (4) and a tower base (5), wherein the blade tip of the blade of the wind wheel is provided with a winglet (1) which is in a flat plate shape and is also in a similar triangle shape, and the sloping edge (S) of the blade tip winglet (1) is in a comb shape. The invention improves the combination property of the wind machine by simply installing a winglet in a flat plate shape on the blade tip of the wind machine under the premise of no alteration of the structural parameters of an original wind machine; the blade tip winglet adopts a flat plate type structure; and the invention has the advantages of simple structure, short process flow, less working procedure, low manufacturing cost and simple installation.

Description

technical field [0001] The invention relates to wind power generating equipment, in particular to a horizontal axis wind machine with blade tip small wings. More specifically, it relates to a horizontal axis wind turbine with an automatic stall adjustment function, which can improve the aerodynamic characteristics of the wind turbine rotor, structural dynamic characteristics, dynamic load distribution on the blade surface, blade tip vortex shedding frequency, and reduce the radiation noise of the rotor. Blade tip winglet device. Background technique [0002] As a clean renewable energy, wind energy will play an important role in the future energy system. Over the past ten years, the world's wind power has developed rapidly with an annual growth rate of about 30%. In my country, the research on wind turbine technology has also made rapid progress. A series of large and medium-sized grid-connected wind turbines ranging from 100 kilowatts to megawatts have been developed, and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a horizontal axis wind turbine with a small blade tip for the technical deficiencies such as complex structure, difficult processing, high manufacturing cost, and difficult installation of the existing wind rotor blade tip. The wings can improve the stall characteristics, aerodynamic characteristics, structural dynamic characteristics, blade surface dynamic load distribution and reduce the radiation noise of the wind turbine in the invention, so that the wind turbine can save energy and improve efficiency

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