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Vortex generator for blade of wind driven generator

A wind turbine and blade vortex technology, which is applied in the direction of wind turbines, wind power generation, engines, etc., can solve the problems of insignificant power generation efficiency improvement, intermittent vortex, and low vortex intensity, so as to improve lift and suppress airflow The effect of separation and vortex airflow stabilization

Inactive Publication Date: 2016-04-06
GREENFUL NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the existing vortex generator, the eddy current intensity is small and the vortex current is intermittent, resulting in the situation that the effect of improving the power generation efficiency is not obvious or the fluctuation is large

Method used

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  • Vortex generator for blade of wind driven generator
  • Vortex generator for blade of wind driven generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] The wind turbine blade vortex generator of the present embodiment is as figure 1 As shown, all are integral structures made of PC alloy, which include a base 1 and two profiles 2 with the same structure. The base 1 is in the shape of an isosceles trapezoid, including an upper bottom edge at the front end, a lower bottom edge and two waists at the rear end. Profile 2 has 1 / 4 oval side 21, swept back hypotenuse 22 and straight side 23, such as figure 2 As shown, the front end of the straight side 23 and the front end of the 1 / 4 elliptical side 21 intersect to form the front end of the profile 22, and the rear end of the straight side 23 is compared with the bottom end of the swept hypotenuse 22 to form the bottom corner of the rear end of the profile 2, 1 / 4 The rear end of the elliptical side 21 intersects with the top of the swept-back hypotenuse 22 to form the top corner of the rear end of the profile 2 . The two profiles 2 are perpendicular to the base 1 and the st...

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Abstract

The invention discloses a vortex generator for a blade of a wind driven generator. The vortex generator comprises a base and two molded surfaces, wherein the molded surfaces are arranged on the base in a mirror symmetry mode. Each molded surface is provided with a convex arc edge, a sweepback bevel edge and a straight edge, wherein the straight edge is fixedly connected to the base; the front end of the straight edge and the front end of the convex arc edge intersect to form the front end of the molded surface; the rear end of the straight edge and the bottom end of the sweepback bevel edge intersect to form the rear-end bottom corner of the molded surface, and the rear end of the convex arc edge and the top end of the sweepback bevel edge intersect to form the rear-end top corner of the molded surface. A vortex generated by the vortex generator for the blade of the wind driven generator is high in strength and stable, and therefore the lift and the lift-to-drag ratio of the blade of the wind driven generator can be effectively increased.

Description

technical field [0001] The invention relates to the field of wind power generation equipment, in particular to a vortex generator for wind power generator blades. Background technique [0002] When the sun shines on the earth's surface, different parts of the earth's surface are heated differently, resulting in a temperature difference, which causes the convective movement of the atmosphere to form wind, and the energy it carries is wind energy. The wind blows the blades of the wind turbine to rotate and then drives the generator to rotate to generate electricity, which is called wind power or wind power. Wind energy is a converted form of solar energy and is a renewable natural energy that does not produce any pollution emissions. Compared with solar, biological, geothermal and ocean energy power generation, wind power is a new energy with the most commercial-scale development conditions in terms of technology and economy. [0003] The blade is one of the key components o...

Claims

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Application Information

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IPC IPC(8): F03D80/00
CPCF05B2240/21F05B2240/30Y02E10/72
Inventor 王耀伟申振华王东
Owner GREENFUL NEW ENERGY
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