Unlock instant, AI-driven research and patent intelligence for your innovation.

Collector Blade Low Center of Gravity Vertical Axis Wind Turbine

A vertical axis, low center of gravity technology, applied in the field of wind power generation equipment, can solve the problems of large airflow interference, low strength and stiffness, and reduce the weight of the wind rotor, so as to improve the probability of facing the wind, avoid disturbing the air flow, and reduce the weight of the wind rotor.

Active Publication Date: 2016-08-24
临沂高新置业有限公司
View PDF7 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Collector Blade Low Center of Gravity Vertical Axis Wind Turbine
  • Collector Blade Low Center of Gravity Vertical Axis Wind Turbine
  • Collector Blade Low Center of Gravity Vertical Axis Wind Turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The low-center-of-gravity vertical axis wind turbine of this embodiment is such as Figure 1 to Figure 4 As shown, it includes a fixed tower 1 that determines the vertical rotation axis and a wind wheel 2 supported on the tower 1. The wind wheel 2 and the tower 1 form an axially constrained horizontal rotating pair; the wind wheel 2 includes a rotation center supported on The wheel frame 3 of the tower 1 and the collecting blades 4 distributed around the wheel frame 3; 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 each other. The collecting blades 4 extend vertically and have a streamlined section; the wheel frame 3 is formed by a group of circumferentially uniformly distributed horizontally extending In addition, the upper and lower corresponding spokes are constituted, and the outer ends of the upper and lower corresponding spokes are respectively rotatably connected with the upper and l...

Embodiment 2

[0064] The low-center-of-gravity vertical axis wind turbine of this embodiment is such as Figure 15 to Figure 16 As shown, the basic structure is the same as that of Embodiment 1, except that: the side of the fixing member 8 facing the transmission frame 6 or the connecting frame 7 and the spokes of the transmission frame 6 or the connecting frame 7 are provided with angles for rotating the blades. For the telescopic controller 12, the controller 12 is an elastic component, or the controller 12 is an electric controller externally controlling the equipment at the controlled end.

[0065] The controller 12 can be an elastic component, whose length can be changed or restored when an external force is applied or withdrawn; when a certain wind speed changes the wind turbine speed, the centrifugal force of the blades changes accordingly, and the blades are fixed by the fixing member 8 and the transmission frame 6 or The rotating connection point of the connecting frame 7 is a certain ...

Embodiment 3

[0069] The low-center-of-gravity vertical axis wind turbine of this embodiment is such as Figure 17 , 18 As shown, compared with Embodiment 1, the wheel frame structure is different: the top of the tower 1 is rotatably connected with the power input shaft 13 of the load, and the axis of the power input shaft 13 is arranged in the vertical direction; the center of the transmission frame 6 is provided with a rotation center 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 rotating pair.

[0070] Specifically, the middle 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 to the power input shaft 13, and the third flange 10- 6 There are radially extending load-bearing arms 10-3 evenly distributed in the circumferential direction, and the ends of the load-bearing arm...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 low center of gravity of collector blades, and belongs to the technical field of wind power generation equipment. Background technique [0002] According to the applicant’s understanding, most of the wind turbines currently operating on the market are horizontal-axis turbine wind turbines with the rotor shaft placed horizontally, which belong to the category of high-speed wind turbines. Among them, low wind speeds have poor performance. Average wind speed The economic efficiency of operation in the area of ​​m / s is not good. In addition, such wind turbines are noisy in operation and generate infrasound waves, which are not suitable for use in cities and communities, and they 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, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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