WO2020073431A1

WO2020073431A1 - Wide-wind area breeze-based power generation system

Info

Publication number: WO2020073431A1
Application number: PCT/CN2018/116303
Authority: WO
Inventors: 张聪聪; 关玉明; 谢占改
Original assignee: 萨姆蒂萨（天津）数据信息技术有限公司
Priority date: 2018-10-10
Filing date: 2018-11-20
Publication date: 2020-04-16
Also published as: TW202014601A; CN109372697A

Abstract

A wide-wind area breeze-based power generation system, comprising: a first tower frame (1), a second tower frame (2), a circular impeller (3), and at least one gear coupling generator (4). The first tower frame (1) and the second tower frame (2) are oppositely disposed, and a gap is provided between the first tower frame (1) and the second tower frame (2). The outer surface of the impeller (3) is provided with a gear (31). The impeller (3) is disposed in the gap and is fixed to the first tower frame (1) and to the second tower frame (2) by means of a central axis passing through the center of the impeller (3). The impeller (3) can rotate about the central axis. The gear coupling generator (4) is disposed on the ends of the first tower frame (1) and of the second tower frame (2) close to the ground and meshes with the gear (31). The present system enables the maintenance work of the power generation system to be completed at a low altitude, so that the complexity, danger, and maintenance cost of the system maintenance work are lowered. In addition, the low-altitude installation and operation of a wind turbine can reduce the noise of the power generation system, can also protect same as well, and avoid the environmental erosion to the wind turbine.

Description

Wide wind region breeze power generation system

Technical field

The invention relates to the technical field of wind power generation, in particular to a wide wind area breeze power generation system.

Background technique

With the emergency of global traditional energy sources, countries around the world are paying more and more attention to the use of various renewable and clean energy sources. There is no fuel problem in wind power generation, nor will it produce radiation and environmental pollution. The current wind power generation technology is relatively mature, using wind to wind the blades to rotate, converting wind energy into mechanical energy to drive the power generation device to work, thereby generating available electrical energy. At present, the mainstream of wind turbines is horizontal-axis fans, which have the advantages of large single-machine capacity and long life, but their requirements for the material of the blades are high in strength and difficult to maintain and protect. Since horizontal-axis fans mostly use doubly-fed generators, a speed-increasing gearbox needs to be added at the front end, which results in a higher failure rate of the gearbox and seriously affects the normal operation of the fan. The height of the cabin of the horizontal-axis fan varies from tens of meters to hundreds of meters due to its capacity, resulting in more complicated and dangerous maintenance work. Faced with typhoons, lightning strikes and noise problems, they were helpless. Windmill-type power generation equipment has low power generation efficiency and low utilization rate of wind energy, and has high requirements on the environment. It requires strong airflow, and it cannot be determined that the wind collecting end is always aligned with the strong wind direction. For an environment where wind resources are relatively scarce and the direction of wind is uncertain, it is difficult to complete the power generation task well.

Summary of the invention

The invention provides a wide wind region breeze power generation system to solve the problems of high complexity and high risk factor for installation and maintenance of a unified wind power generator.

In order to solve the above technical problems, an embodiment of the present invention provides a wide wind region breeze power generation system, including: a first tower, a second tower, a round impeller and at least one gear coupling generator;

The first tower and the second tower are oppositely arranged, and a gap is provided between the first tower and the second tower;

The outer surface of the impeller is provided with gears; the impeller is disposed in the gap, and is fixed to the first tower and the second tower by passing through the central axis of the center of the impeller The impeller is rotatable around the central axis;

The gear coupling generator is disposed at the ends of the first tower and the second tower close to the ground, and meshes with the gears.

Preferably, the impeller includes: a plurality of blades arranged along the radial direction of the impeller and an annular fixed structure connected to the ends of the blades;

Wherein, the gear is provided on the outer surface of the ring-shaped fixed structure.

Preferably, the blade is rotatable relative to the annular fixed structure in the first direction;

Wherein, the first direction is perpendicular to the extending direction of the blade.

Preferably, the wide wind region breeze power generation system further includes: a base for fixing on the ground;

The first tower and the second tower are fixed on the base, and the gear coupling generator is disposed near the base.

Preferably, the base includes: a base and a mounting platform for fixing on the ground;

The base is provided with curved guide rails;

The installation platform is connected with the arc-shaped guide rail, and the installation platform is slidable along the arc-shaped guide rail;

The first tower and the second tower are fixed on the installation platform.

Preferably, the curved guide rail is a ball guide rail.

Preferably, the arc angle of the arc guide rail is 360 °.

Preferably, a plurality of bosses are also provided on the base, and the bosses are disposed away from the curved guide rail.

Preferably, the ends of the first tower and the second tower away from the ground are respectively provided with impeller support devices;

The impeller supporting device is in contact connection with the side of the impeller.

Preferably, the ends of the first tower and the second tower away from the ground are provided with lightning protection devices respectively.

Preferably, an end of the first tower and the second tower near the ground is provided with an impeller braking device.

The beneficial effects of the embodiments of the present invention are:

In the above scheme, the outer edge of the impeller is evenly equipped with gears. When the wind energy pushes the impeller to rotate around the central axis, the gear rotates with the impeller; the gear coupling generator and the gear mesh, so when the impeller rotates, the gear is driven The gear coupling generator rotates, converting kinetic energy into electrical energy, and finally converting wind energy into electrical energy. It should be noted that the number of the gear coupling generators can be set according to the design power, and when multiple gear coupling generators are provided, since the gear coupling generators are driven by the same gear, the gear coupling can be guaranteed The speed of the shaft generator is the same.

In addition, the gear coupling generator is provided at the end of the first tower and the second tower close to the ground, and is driven by a mechanical structure to ensure that the maintenance work of the power generation system can be completed at low altitude, which greatly reduces the system Maintenance work complexity, risk and maintenance cost. In addition, the low-altitude installation and operation of the wind power generator can muffle the noise and reduce the noise of the power generation system, and can also well protect it, avoiding the erosion of the wind power generator by the environment.

BRIEF DESCRIPTION

FIG. 1 shows one of the schematic diagrams of a wide wind region breeze power generation system according to an embodiment of the present invention;

FIG. 2 shows a second schematic diagram of a wide wind region breeze power generation system according to an embodiment of the present invention.

Description of reference signs:

1. The first tower;

2. The second tower;

3. Impeller;

31. Gears;

32. Blade;

33. Ring-shaped fixed structure

4. Gear coupling generator;

5. Base;

51. The base;

510. Boss;

52. Installation platform;

6. Impeller support device;

7. Lightning protection device;

8. Impeller braking device.

detailed description

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

As shown in FIGS. 1 and 2, an embodiment of the present invention provides a wide wind region breeze power generation system, including: a first tower 1, a second tower 2, a round impeller 3 and at least one gear coupling Shaft generator 4.

The first tower 1 and the second tower 2 are oppositely arranged, and a gap is provided between the first tower 1 and the second tower 2.

The outer surface of the impeller 3 is provided with a gear 31; the impeller 3 is disposed in the gap, and passes through the central axis of the center of the impeller 3, and the first tower 1 and the second The tower 2 is fixed, and the impeller 3 is rotatable around the central axis.

The gear coupling generator 4 is disposed at the ends of the first tower 1 and the second tower 2 close to the ground, and meshes with the gear 31.

Specifically, the first tower 1 and the second tower 2 are used to be vertically installed on the ground, or installed on the ground through a base; wherein the first tower 1 and the second tower 2 include a main support column and The main support column is at least two auxiliary support columns set at a preset angle, the auxiliary support columns are respectively arranged on both sides of the main support column, and one end of the auxiliary support column is connected to the main support column, The other end is used to be installed on the ground or on the ground through a base to improve the stability and reliability of the first tower 1 and the second tower 2.

In this embodiment, the outer edge of the impeller 3 is evenly equipped with a gear 31. When the wind energy pushes the impeller 3 to rotate around the central axis, the gear 31 rotates with the impeller 3; the gear coupling generator 4 meshes with the gear 31, Therefore, when the impeller 3 rotates, the gear 31 is driven to rotate the gear coupling generator 4 to convert the kinetic energy into electrical energy, and finally convert the wind energy into electrical energy.

It should be noted that the number of the gear coupling generators 4 can be set according to the design power, and when multiple gear coupling generators 4 are provided, since the gear coupling generators 4 are driven by the same gear, Ensure that the speed of the gear coupling generator 4 is the same.

In addition, the gear coupling generator 4 is provided on the first tower 1 and the second tower 2 at the end close to the ground, and is driven by a mechanical structure to ensure that the maintenance work of the power generation system can be completed at low altitude, greatly Reduce the complexity, risk and maintenance cost of system maintenance. In addition, the low-altitude installation and operation of wind turbines can muffle and reduce noise in the power generation system, and can also well protect them, avoiding the erosion of wind turbines by the environment.

Wherein, the impeller 3 includes: a plurality of blades 32 arranged along the radial direction of the impeller and an annular fixed structure 33 connected to the ends of the blades 32; wherein, the gear 31 is arranged on the annular fixed structure 33 Outer surface.

Specifically, the tip of the blade 32 is the end away from the center of the impeller 3 along the radial direction of the impeller 3. The center of the ring-shaped fixing structure 33 is the center of the impeller 3. The blades 32 are located inside the ring-shaped fixing structure 33 and are radially distributed from the center of the ring along the radial direction of the ring-shaped fixing structure 33. The blade 32 is rotatable relative to the annular fixed structure 33 in a first direction; wherein, the first direction is perpendicular to the extending direction of the blade 32. Preferably, the angle range of the blade 32 in the first direction is 0-360 °, to ensure that the blade 32 can rotate in any angle in the first direction. In this way, by rotating the blade 32 to a different angle in the first direction, the windward area of the blade 32 is adjusted to ensure that the impeller 3 can maintain a stable speed range under different wind speeds.

It should be noted that the number of blades 32 can be set according to the design power. Although FIG. 1 shows an example in which the impeller 3 has five blades 32, the embodiment of the present invention may also set the impeller 3 to have the other The number of blades 32 other than this is not limited in the present invention.

In this embodiment, the end of the blade 32 is fixed by the ring-shaped fixing structure 33, which greatly enhances the ability of the wind blade 32 to cope with bad weather. In the case of low wind speed, higher wind power can be captured and wind resources can be used more efficiently.

Wherein, the wide wind region breeze power generation system further includes: a base 5 for fixing on the ground; the first tower 1 and the second tower 2 are fixed on the base 5, and the gear The coupling generator 4 is arranged close to the base 5.

Specifically, the base 5 includes a base 51 and a mounting platform 52 for fixing on the ground.

The base 51 is provided with an arc-shaped guide rail; the installation platform 52 is connected to the arc-shaped guide rail, and the installation platform 52 is slidable along the arc-shaped guide rail; the first tower 1 and the The second tower 2 is fixed on the installation platform 52.

Wherein, the shapes of the base 51 and the mounting platform 52 may be circular, rectangular, polygonal, or other shapes, and the invention is not limited thereto. Preferably, it may be circular.

In this embodiment, the first tower 1 and the second tower 2 are fixed on the installation platform 52, and the installation platform 52 and the base 51 are connected by an arc guide rail to realize the first tower 1 and the second tower 2 rotate on the horizontal plane, so as to realize the rotation of the impeller in the horizontal plane.

Preferably, the arc-shaped guide rail is a ball guide rail, and the horizontal rotation of the mounting platform 52 relative to the base 51 is achieved through the balls. The arc angle of the arc guide rail is 360 °. In this way, the first tower 1 and the second tower 2 can achieve 360 ° rotation in the horizontal plane, thereby achieving 360 ° rotation of the impeller 3 in the horizontal plane, so as to adjust the direction of the windward surface of the blade according to the wind direction, and realize self-direction, Keep the air collection opening always in the direction of strong wind. At the same time, the horizontal rotation function can also freely choose the downwind direction in severe weather, effectively reduce the area facing the wind, and enhance the ability of the power generation system to deal with severe weather.

Wherein, a plurality of bosses 510 are further provided on the base 51, and the bosses 510 are disposed away from the curved guide rail. The boss 510 is used to be fixed on the ground, to increase the force on the ground, and to ensure the stability and reliability of the broad wind region breeze power generation system fixed on the ground. Preferably, the material of the boss 510 may be cement.

Wherein, the ends of the first tower 1 and the second tower 2 away from the ground are respectively provided with an impeller supporting device 6; the impeller supporting device 6 is in contact connection with the side surface of the impeller 3.

In this embodiment, an impeller supporting device 6 is installed on the tops (the end away from the ground) of the first tower 1 and the second tower 2, and contacts the impeller 3 to protect the rotation of the impeller 3.

Among them, the first tower 1 and the second tower 2 are respectively provided with lightning protection devices 7 at the ends far away from the ground, which play a role in protecting a wide wind region breeze power generation system.

Wherein, the ends of the first tower 1 and the second tower 2 close to the ground are provided with an impeller braking device 8, so that the impeller 3 can be braked by the impeller braking device 8.

The working principle of the wide wind region breeze power generation system in the embodiment of the present invention is: when a wind source with an uncertain near-ground direction is blown to the wide wind region breeze power generation system, the flat 52 and the base 51 can be installed according to the wind strength The sliding guide rail between the first tower 1 and the second tower 2 connected to the installation platform 52 rotates in a horizontal plane, automatically adjusts the direction, so that the impeller 3 always faces the direction of strong wind. The wind energy pushes the blade 32 mounted on the impeller 3 to rotate, converting the wind energy into the kinetic energy of the impeller 32. The impeller 3 rotates, and the gear 31 at the outer edge of the impeller 3 drives the low-altitude gear coupling generator 4 to work, converts kinetic energy into electrical energy, and finally realizes the conversion of wind energy into electrical energy.

In the above solution, the gear coupling generator 4 is provided at the end of the first tower 1 and the second tower 2 close to the ground, and is driven by a mechanical structure to ensure that the maintenance work of the power generation system can be completed at low altitude, greatly Reduce the complexity, risk and maintenance cost of system maintenance. In addition, the low-altitude installation and operation of the wind power generator can muffle the noise and reduce the noise of the power generation system, and can also well protect it, avoiding the erosion of the wind power generator by the environment.

And the end of the blade 32 is fixed by the annular fixed structure 33, which greatly enhances the ability of the wind blade 32 to cope with bad weather; the wind blade 32 fixed by the annular fixed structure 33 is also helpful to increase the windward area of the wind blade at low wind speed Under, you can capture higher wind power and use wind resources more efficiently.

In addition, the first tower 1 and the second tower 2 are fixed on the installation platform 52, and the installation platform 52 and the base 51 are connected by an arc guide rail to realize the first tower 1 and the first The rotation of the second tower 2 on the horizontal plane, so as to realize the rotation of the impeller in the horizontal plane. Preferably, the arc angle of the arc guide rail is 360 °. In this way, the first tower 1 and the second tower 2 can achieve 360 ° rotation in the horizontal plane, thereby achieving 360 ° rotation of the impeller 3 in the horizontal plane, so as to adjust the direction of the windward surface of the blade according to the wind direction, and realize self-direction, Keep the air collection opening always in the direction of strong wind. At the same time, the horizontal rotation function can also freely choose the downwind direction in severe weather, effectively reduce the area facing the wind, and enhance the ability of the power generation system to deal with severe weather.

The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, a number of improvements and retouchings can be made without departing from the principles described in the present invention. Within the scope of protection of the invention.

Claims

A wide wind region breeze power generation system, characterized in that it includes: a first tower (1), a second tower (2), a round impeller (3) and at least one gear coupling generator (4) ;

The first tower (1) and the second tower (2) are oppositely arranged, and a gap is provided between the first tower (1) and the second tower (2);

The outer surface of the impeller (3) is provided with a gear (31); the impeller (3) is disposed in the gap and passes through the central axis of the center of the impeller (3), and the first The tower (1) and the second tower (2) are fixed, and the impeller (3) is rotatable around the central axis;

The gear coupling generator (4) is provided on the first tower (1) and the second tower (2) at the ends close to the ground, and meshes with the gear (31).
The wide wind region breeze power generation system according to claim 1, characterized in that the impeller (3) comprises: a plurality of blades (32) arranged along the radial direction of the impeller and the blades (32) Ring-shaped fixed structure (33) connected at the ends;

Wherein, the gear (31) is provided on the outer surface of the ring-shaped fixing structure (33). 3. The wide wind region breeze power generation system according to claim 2, characterized in that the blade (32) is rotatable relative to the annular fixed structure (33) in the first direction;

Wherein, the first direction is perpendicular to the extending direction of the blade.
The wide wind region breeze power generation system according to claim 1, further comprising: a base (5) for fixing on the ground;

The first tower (1) and the second tower (2) are fixed on the base (5), and the gear coupling generator (4) is disposed near the base (5).
The wide wind region breeze power generation system according to claim 4, wherein the base (5) includes: a base (51) and a mounting platform (52) for fixing on the ground;

The base (51) is provided with an arc-shaped guide rail;

The mounting platform (52) is connected to the curved guide rail, and the mounting platform (52) is slidable along the curved guide rail;

The first tower (1) and the second tower (2) are fixed on the installation platform (52).
The wide wind region breeze power generation system according to claim 5, wherein the arc angle of the arc guide rail is 360 °.
The wide wind region breeze power generation system according to claim 5, characterized in that the base (51) is further provided with a plurality of bosses (510), and the bosses (510) face away from the arc Rail setting.
The wide wind region breeze power generation system according to claim 1, characterized in that the first tower (1) and the second tower (2) are provided with impeller support devices (6) at the ends away from the ground, respectively;

The impeller supporting device (6) is in contact connection with the side of the impeller (3).
The wide wind region breeze power generation system according to claim 1, wherein the first tower (1) and the second tower (2) are respectively provided with lightning protection devices (7) at the ends away from the ground.
The wide wind region breeze power generation system according to claim 1, characterized in that the first tower (1) and the second tower (2) are provided with impeller braking devices (8) at the ends close to the ground.