Vertical-axis wind turbine with flow collection blades and low gravity center

A vertical axis, low center of gravity technology, applied in the field of wind power generation equipment, can solve the problems of reducing the weight of the wind rotor, large airflow interference, low strength and stiffness, etc., to achieve the effect of reducing the weight of the wind rotor, avoiding interference with the airflow, and increasing the probability of facing the wind

Active Publication Date: 2014-07-23
临沂高新置业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution still has the following major disadvantages: (1) the interlayer support components are too bulky, which greatly interferes with the airflow and affects the wind energy utilization performance of the blade; The internal strength and rigidity are relatively low, and a large weight is still required to achieve the expected strength and rigidity, which is not conducive to reducing the weight of the wind rotor; (3) The structural strength of the bearing structure between the wheel frame and the main shaft of the wind rotor is poor, but for Improving the strength will inevitably increase the weight of the wind rotor, which makes the wind rotor unable to be enlarged; (4) The power control of the wind turbine cannot be realized

Method used

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  • Vertical-axis wind turbine with flow collection blades and low gravity center
  • Vertical-axis wind turbine with flow collection blades and low gravity center
  • Vertical-axis wind turbine with flow collection blades and low gravity center

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The low center of gravity vertical axis wind turbine with collector blades in this embodiment is as follows: Figure 1 to Figure 4 As shown, it includes a fixed tower 1 that determines the vertical axis of rotation and a wind wheel 2 supported on the tower 1, and the wind wheel 2 and the tower 1 constitute a horizontal rotation pair that is axially constrained; the wind wheel 2 includes a center of rotation supported on The wheel frame 3 of the tower 1, and the collecting blades 4 distributed on the periphery of the wheel frame 3; as Figure 12 to Figure 14 As shown, the collecting blades 4 are composed of a group of fins 5 arranged in parallel with gaps between them. The collecting blades 4 extend vertically and have a streamlined cross-section; And the spokes corresponding to the upper and lower are constituted, and the outer ends of the spokes corresponding to the upper and lower are respectively rotatably connected with the corresponding upper and lower parts of the...

Embodiment 2

[0064] The low center of gravity vertical axis wind turbine with collector blades in this embodiment is as follows: Figure 15 to Figure 16 As shown, its basic structure is the same as that of Embodiment 1, and the only difference is that: between the side of the fixing member 8 facing the transmission frame 6 or the connection frame 7 and the spokes of the transmission frame 6 or the connection frame 7, there is a device for rotating the blade angle. A telescopic controller 12, the controller 12 is an elastic component, or the controller 12 is an electric controller connected to an external control device at the controlled end.

[0065] The controller 12 can be an elastic member, and its length can change or return when an external force is applied or withdrawn; The rotation connection point of the connection frame 7 is a certain angle of axis rotation, so that the controller 12 is extended or shortened, thereby changing the effect of the air flow on the blades, which in turn...

Embodiment 3

[0069] The low center of gravity vertical axis wind turbine with collector blades in this embodiment is as follows: Figure 17 , 18 As shown, compared with Embodiment 1, the wheel frame structure is different: the top of the tower 1 is rotationally connected with the power input shaft 13 of the load, and the axis of the power input shaft 13 is arranged vertically; The third flange 10-6, the third flange 10-6 is fixedly connected with the power input shaft 13; the third flange and the top of the tower form an axially restrained horizontal rotation pair.

[0070] Specifically, the middle part of the transmission frame 6 is a regular polygon and is provided with a truss 10; the truss 10 includes a third flange 10-6, the third flange 10-6 is fixedly connected with the power input shaft 13, and the third flange 10- 6 circumferentially evenly distributed load-bearing arms 10-3 radially extending, the ends of the load-bearing arms 10-3 are respectively connected with the vertices of...

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Abstract

The invention relates to a vertical-axis wind turbine with flow collection blades and a low gravity center. The vertical-axis wind turbine comprises a fixed tower and a wind wheel, wherein the fixed tower is used for determining a vertical rotation axis, the wind wheel is supported on the tower, and the wind wheel and the tower form a horizontal rotation pair constrained axially; the wind wheel comprises a wheel frame and the flow collection blades, the rotation center of the wheel frame is supported on the tower, and the flow collection blades are distributed around the wheel frame; each flow collection blade is composed of a set of fins distributed in parallel at intervals, and the flow collection blades vertically extend and are provided with streamline-shaped sections; the wheel frame is composed of a set of spokes circumferentially distributed, extending horizontally and corresponding to one another in an up-down mode, and the outer ends of the spokes corresponding to one another in the up-down mode are fixedly connected or rotatably connected with upper corresponding portions and lower corresponding portions on the blades. By means of the structure, wind energy utilization performance of the flow collection blades can be fully used.

Description

technical field [0001] The invention relates to a vertical axis wind turbine, in particular to a vertical axis wind turbine with a collector blade and low center of gravity, and belongs to the technical field of wind power generation equipment. Background technique [0002] As far as the applicant knows, most of the wind turbines used in the current market are horizontal-axis turbine wind turbines with the rotor shaft placed horizontally, which belong to the category of high-wind-speed wind turbines. Average wind speed The m / s region does not operate economically well. In addition, this type of wind turbine is noisy and produces infrasonic waves, which is not suitable for use in cities and communities, and it will also endanger the living environment of birds. [0003] In addition, there are vertical axis wind turbines, which are characterized by no wind direction requirements, low noise, and no infrasonic waves. Compared with horizontal-axis wind turbines, vertical-axis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/06
CPCY02E10/74
Inventor 程钰李宏春周宇李锋
Owner 临沂高新置业有限公司
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