Vertical axis wind turbine blade device

A wind turbine, vertical axis technology, which is applied in the assembly of wind turbines, wind turbines, wind turbines at right angles to the wind direction, etc. Effect

Inactive Publication Date: 2020-11-13
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a vertical axis wind turbine blade device, by changing the area of ​​the windward side and the leeward side of the blade, the driving force of the windward side is improved, and the resistance of the leeward side is reduced, thereby Improve the efficiency of vertical axis wind turbines to convert wind energy into mechanical energy, and solve the problem that the existing vertical axis wind turbines are difficult to self-start

Method used

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  • Vertical axis wind turbine blade device
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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 4 to Figure 7 As shown, the vertical axis wind turbine blade device in this embodiment adopts a set of blades, the assembled blades are fixedly installed on the main support 8 respectively, and the swing rods of the two blades that cooperate with each other are connected through the connecting rod 9 .

[0037] Such as Figure 4 and Figure 5 As shown, when the two blades move to the extreme position respectively, the blade on the left side is the leeward blade at this time, and this is the moment of the maximum leeward side, and the flexible cloth surface of the leeward blade is in a fully contracted state. The blade on the right side is the windward blade, and this moment is the maximum windward surface moment, and the flexible cloth surface of the windward blade is in a fully unfolded state. Utilize the area difference produced when the flexible cloth surface of the windward blade expands and the flexible cloth surface of the leeward blade shrinks to...

Embodiment 2

[0041] Different from Embodiment 1, this embodiment includes two sets of blades. Such as Figure 8 As shown, two main supports are arranged at intervals up and down along the axial direction of the central axis of rotation of the main support. Both ends of the main support are respectively connected with blades, so two sets of blades are provided in the vertical direction. The blades are evenly arranged along the circumference of the central axis of rotation of the main support, that is, the same included angle exists between adjacent blades. By setting multiple sets of blades with a certain angle between each other, the device can be in a wind-receiving state within a range of 360°. No matter what the wind direction or any change in the wind direction, there will always be a Driven by wind energy, the blades can drive the main support connected to it to rotate, so that the main support rotation center axis rotates, and then other groups of blades connected to the main suppor...

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Abstract

The invention relates to the field of wind power generation, in particular to a vertical axis wind turbine blade device. Blades are separately fixed to two ends of a main bracket, the two blades are arranged in a 180-degree-rotation mode, and the two blades are used in pairs; the blades comprise brackets, swing rod groups, connecting rod groups, sliding blocks and deceleration springs; the slidingblocks sleeve the brackets, the sliding blocks slide back and forth in the axial direction of the brackets, and the deceleration springs are separately arranged on the front sides and the rear sidesof the sliding blocks in the axial direction; and one ends of the deceleration springs are fixedly connected with the brackets, the swing rod groups comprise a plurality of swing rods, one ends of thebrackets are hinged to the front ends of the swing rods, the connecting rod groups comprise a plurality of connecting rods, the sliding blocks are separately connected with each swing rod through theconnecting rods, the front ends of the connecting rods are hinged to the middle parts of the swing rods, and the rear ends of the connecting rods are hinged to the sliding blocks. By changing the windward side areas and leeward side areas of the blades, the driving force of the windward sides is increased, the resistance of the leeward sides is reduced, and the efficiency of a vertical axis windturbine to convert wind energy into mechanical energy is improved, and the self starting ability is improved.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a vertical axis wind power generator blade device. Background technique [0002] With the global shortage of fossil fuels and increasing environmental problems, wind energy has attracted widespread attention as a renewable and clean energy. Wind power is to convert the kinetic energy of the wind into mechanical energy, and then convert the mechanical energy into electrical energy. In a vertical axis wind turbine, the axis of rotation of the rotor is perpendicular to the ground or the direction of the airflow. This wind power generating set includes three parts: a wind rotor with a tail rudder, a generator and an iron tower. The wind wheel is an important part that converts the kinetic energy of the wind into mechanical energy, and it consists of two or more blades. When the wind blows to the blades, aerodynamic force is generated on the blades to drive the wind wheel to ro...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F03D3/06F03D13/10
CPCF03D3/002F03D3/062F03D13/10Y02E10/74
Inventor梅宁张岩袁瀚赵泽滢张淑慧纪翔
OwnerOCEAN UNIV OF CHINA