CN218479877U

CN218479877U - Horizontal shaft wind driven generator

Info

Publication number: CN218479877U
Application number: CN202090000651.XU
Authority: CN
Inventors: 米建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2020-07-21
Publication date: 2023-02-14
Anticipated expiration: 2030-07-21
Also published as: CN110360049A; WO2021023004A1

Abstract

The utility model provides a horizontal axis aerogenerator, including a tower section of thick bamboo (3), the impeller that blade (1) is constituteed, generator compartment (2), the impeller rotates and drives generator compartment (2) electricity generation, generator compartment (2) are fixed at tower section of thick bamboo (3) top with rotating, be equipped with wind-gathering plate (4) at tower section of thick bamboo (3), wind-gathering plate (4) are connected with tower section of thick bamboo (3) through connecting portion (5), rotate around tower section of thick bamboo (3) axle center through connecting portion (5), wind-gathering plate (4) cross section is crooked slice, wind-gathering plate (4) are in impeller rotation range outside bottom, wind-gathering plate (4) and impeller pivoted plane keep in the coplanar, also wind-gathering plate (4) follow impeller synchronous rotation, the problem of low and unsafe of partial aerogenerator utilization efficiency about the existing aerogenerator of wind-force variation in size is solved.

Description

Horizontal shaft wind driven generator

Technical Field

The invention relates to the field of wind power generation, in particular to a horizontal shaft wind driven generator with a wind gathering plate.

Background

The horizontal-axis wind turbine has many advantages compared with other types of wind turbines, but has many problems in operation of the horizontal-axis wind turbine, wherein an impeller of the horizontal-axis wind turbine is rotatably operated on a vertical plane, wind speeds at the top and the bottom of the impeller are different, generally the top wind speed is higher than the bottom, each blade on the impeller is unevenly stressed by wind force during rotation, namely the blade is greatly stressed and bent at a high wind power position, and is slightly stressed and bent at a low wind power position, and the stress of the blade is periodically changed in one rotation period of each blade, so that the blade shakes, thereby causing the impeller, a cabin and a tower to shake, affecting the safety and the power generation efficiency of the whole wind turbine, and meanwhile, because all the blades are fixedly distributed at one low wind power position, the blade at the high wind power position hinders the rotation of the blade at the low wind power position, and therefore, the lower half of the tower has an influence on the wind energy loss.

Summary of The Invention

Technical problem

The force applied to the blades is periodically changed during a rotation period of each blade, and the blades are shaken, so that the shaking of the impeller, the generator room and the tower is caused, which affects the safety and the generating efficiency of the whole wind driven generator.

Technical solution

The invention aims to provide a horizontal shaft wind driven generator with a wind gathering plate, which solves the problems of low wind power utilization efficiency and unsafe problem of wind driven generators with different wind power sizes at the upper part and the lower part of the existing wind driven generator.

In order to achieve the purpose, the invention is realized by the following technical scheme: a horizontal axis wind driven generator comprises a tower, an impeller and a generator cabin, wherein the impeller rotates to drive the generator cabin to generate electricity, the generator cabin is rotationally fixed at the top of the tower, a wind gathering plate is arranged on the tower and is connected with the tower through a connecting part, the wind gathering plate rotates around the axis of the tower through the connecting part, the cross section of the wind gathering plate is in a bent sheet shape, the wind gathering plate is arranged at the bottom of the outer side of the rotation range of the impeller, the impeller drifts along with the wind direction, the wind gathering plate and the rotation plane of the impeller are kept on the same plane, namely, the wind gathering plate rotates synchronously along with the impeller, the tower comprises a cylindrical shape or a support shape, and the cylindrical shape is called as a tower cylinder.

The wind gathering plate can rotate around the tower through the connecting part, the connecting part can be a bearing, the inner ring of the bearing is fixedly connected with the tower, the outer ring of the bearing is connected with the wind gathering plate, the inner ring and the outer ring of the bearing can rotate mutually to enable the wind gathering plate to rotate around the tower, if the tower is a tower barrel, even an annular recess can be manufactured on the surface of the tower barrel to replace the inner ring of the bearing, or the connecting part is provided with a track on the tower, the track is fixed around the tower, the wind gathering plate is fixedly provided with a pulley, the pulley rotates along the track, or the connecting part can be a gear ring which is fixed on the tower, the gear is fixed on the wind gathering plate, the gear is meshed with the gear ring, the gear rotates to drive the wind gathering plate to rotate around the tower, otherwise, the gear ring can be fixedly connected with the wind gathering plate, the tower is provided with at least three gears which are uniformly distributed and surround the same horizontal plane of the tower, the gear is matched with the toothed ring, a bevel gear and the toothed ring can be adopted, axial and radial forces can be provided simultaneously, the gear rotates to drive the toothed ring to rotate, the toothed ring rotates to drive the wind gathering plate to rotate, a plurality of connection points can be arranged between one connection part and the wind gathering plate, the wind gathering plate can be connected with a plurality of connection parts, for example, the bottom of the wind gathering plate is connected with one connection part, the two ends of the wind gathering plate are connected with the other connection part, the stability of the wind gathering plate is increased, the rotation driving of the wind gathering plate is implemented by the connection parts, the connection parts are provided with devices related to the wind of the impeller, the synchronous impeller and the wind gathering plate can be in various forms, the generator cabin can be fixedly connected with the connection parts by pure machinery, the generator cabin, the connection parts and the wind gathering plate can integrally and synchronously move, an electric driving device can be arranged on the connection parts and can be electrically connected with the wind-aligning device of the generator cabin in a wired or wireless mode, the driving connecting part and the wind gathering plate move synchronously, and the wind gathering plate can be independently provided with a wind driving device, so that the wind gathering plate keeps an angle with wind.

The optimized tower adopts the most common tower barrel type structure, a rectifying device is added on one side of the tower barrel, the rectifying device comprises a groove-shaped extending main body, the cross section of the main body is approximately V-shaped, the opening part of the V-shaped main body is close to the outer surface of the tower barrel, the main body is connected with the outer surface of the tower barrel through a connecting part, the tower barrel and the main body form a streamline appearance from the tower barrel to the main body, the main body rotates around the axle center of the tower barrel through the connecting part, two side surfaces of the main body can be planes, in order to achieve the best effect, the two side surfaces of the main body are smooth arcs, the cross section formed from the tower barrel to the two surfaces is close to the optimized water drop-shaped structure, in the same horizontal plane, the shortest distance between the opening parts of the main body and the surface of the tower barrel is smaller than half perimeter of the tower barrel on the same horizontal plane, from tower section of thick bamboo top to basal portion according to tower section of thick bamboo diameter change main part size also change, tower section of thick bamboo diameter increases promptly, the main part also increases the size and comes with tower section of thick bamboo adaptation, form the best streamline appearance, it forms not to have the random flow near the tower section of thick bamboo, the afterbody of main part is equipped with the water conservancy diversion protrudingly, the main part afterbody has radial elasticity, radial elasticity sets up the influence that can reduce the random flow, there is between the inboard of strengthening two sides of leg joint in the main part, make two sides connect and the shape is fixed, the limit that makes two sides and tower section of thick bamboo be close to is stable, strengthen the support and draw multiple structural shape such as parallel or oblique drawing, just no longer enumerate one by one in this application, two sides of main part are symmetrical structure each other.

The connecting part and the main body are provided with groove type sharp beaks at positions opposite to each other across the tower barrel, the opening of the sharp beak faces the tower barrel and is arranged along the tower barrel from the top to the base, when the main body rotates, the sharp beak rotates along with the connecting part and is always positioned at the position opposite to the main body and the tower barrel, the connecting part can be a bearing, a bearing inner ring is fixedly connected with the tower barrel, a bearing outer ring is connected with the main body, the bearing outer ring is also fixedly provided with the groove type sharp beak, the opening of the sharp beak faces the tower barrel, the sharp beak is positioned at the position opposite to the main body and the tower barrel and can rotate along with the bearing outer ring, the point beak rotates along with connecting portion and keeps separating tower section of thick bamboo relative position always with the main part, the setting of point beak is suitable for structures such as track or ring gear equally, point beak and main part have the pulley respectively and are connected with the track, main part and point beak are connected through the connecting rod that encircles a tower section of thick bamboo, the distance length along tower section of thick bamboo surface between the point beak opening is less than the quarter length of a tower section of thick bamboo first girth at same level, the point beak of small-size is favorable to reducing the weight and the cost of point beak, the point portion of point beak is equipped with the reposition of redundant personnel and swells, the setting of point beak can have the reposition of redundant personnel effect, further reduce the resistance.

The sharp beak, the wind gathering plate and the main body of the rectifying device are fixed with a tower cylinder through a connecting part and comprise an upwind type body and a downwind type body, an impeller of the upwind type wind driven generator is in an incoming wind direction relative to the tower cylinder, and the sharp beak and the wind gathering plate are also in the incoming wind direction relative to the tower cylinder, namely the impeller.

Through the arrangement, the sharp beak, the wind gathering plate and the main body are connected with the connecting part, so that the sharp beak, the wind gathering plate and the main body can move synchronously only through one driving device, and the effect of the wind gathering plate and the main body is played together.

Preferably, at least three connecting portions are provided along the tower from the top to the base, and because of this arrangement, at least three connecting locations between the main body and the tower provide support or tension for the main body when the tower is deformed by external forces.

The sharp beak is connected with the tower drum in a limiting manner through the connecting part, namely after the connecting part is installed in place, the sharp beak cannot fall off from the installation position when the wind collecting plate and the main body are subjected to external force in other directions, for example, when the connecting part of the bearing is used, the sharp beak is arranged between the wind collecting plate and the main body and cannot move up and down along the tower drum when the wind collecting plate and the main body are subjected to force in the vertical direction, so that a bearing with an inner ring and an outer ring incapable of moving along the axial direction of the bearing such as a deep groove ball bearing is required to be adopted, a stopping device capable of preventing the inner ring and the outer ring of the bearing from rotating mutually can be added, for example, a braking device is arranged between the inner ring and the outer ring of the bearing and can prevent the inner ring and the outer ring from rotating mutually, therefore, when the connecting part does not need to rotate, the sharp beak is arranged, the wind collecting plate and the main body are fixedly connected relative to the tower drum and cannot move in any direction, when the connecting part is connected by adopting a rail, the pulley is also required to adopt a limiting structure, and at least two pulleys to clamp rails from different directions, and the main body can be arranged on the braking device when the connecting part is not required to rotate. The impeller rotation range is a vertical circular plane with the impeller axis, the length of the wind gathering plate is smaller than half of the impeller rotation range, namely the wind gathering plate is arranged at the bottom of the impeller, two ends of the wind gathering plate extend to be lower than the horizontal line passing through the impeller axis, the wind power at the bottom of the impeller is minimum and gradually increases upwards, the width of the wind gathering plate is gradually narrowed from the bottom to two ends, the cross section shape of the wind gathering plate relative to the position of the impeller is a front opening, a rear opening or two side openings, namely a wind gathering type, a diffusion type or a wind gathering diffusion type.

The wind-gathering plates can be arranged in multiple layers, namely one or more wind-gathering plates are arranged on the outer side of one wind-gathering plate, so that the wind-gathering effect is increased.

The wind-gathering plate is connected with the tower frame, the connection position at the bottom of the impeller is lower, and compared with other wind-gathering plates fixed at the positions of a generator room or an impeller rotating shaft and the like, the wind-gathering plate is more stable and reliable.

The beak, gather aerofoil and host material can the multiple material preparation, adopt plastics, the glass steel, the preparation of light ageing-resistant materials such as carbon fiber, transparent material such as adoption macromolecular material carbon gathering fiber or PET plastics can increase the aesthetic feeling, adopt ultra-thin toughened glass preparation even, also can adopt thin film solar panel preparation, there is the support inside thin film solar panel, thin film solar panel produces the electric energy and can transmit to tower section of thick bamboo basal portion through setting up the carbon brush at connecting portion, and export to the outside, can transmit electric quantity to the generator cabin.

Advantageous effects

The invention has the beneficial effects that: the wind power generator adopting the wind gathering plate provided by the invention has the advantages that the impeller of the wind power generator obtains strong and uniform wind power in the whole operation range, the shaking of the blades and the impeller is reduced, the shaking of the generator cabin and the tower barrel is reduced, the resistance of the tower barrel is reduced by the tower barrel rectifying device, the vibration of the tower barrel caused by the vortex street generated after the wind passes through the tower barrel is reduced, the wind power generator and the tower barrel rectifying device share the connecting part and work in a mutually matched mode, and the wind power utilization efficiency and the safety of the wind power generator are greatly improved.

Drawings

FIG. 1 is a front view of an upwind wind turbine of the present invention with wind-collecting plates;

FIG. 2 is a schematic vertical cross-sectional view of an upwind wind turbine of the present invention provided with a wind-collecting plate;

FIG. 3 is a schematic horizontal cross-sectional view of an upwind wind turbine of the present invention having a wind-collecting plate;

FIG. 4 is a schematic horizontal cross-sectional view of a downwind wind type wind turbine provided with a wind-collecting plate according to the present invention;

FIG. 5 is a schematic view of an opening of a wind collecting plate of a wind turbine according to the present invention;

FIG. 6 is a schematic vertical cross-sectional view of a downwind wind type wind turbine provided with a wind-collecting plate according to the present invention;

FIG. 7 is a schematic horizontal cross-sectional view of a pylon wind generator of the present invention having wind-collecting plates;

FIG. 8 is a schematic view of an opening of a multi-layer wind-collecting plate of a wind turbine according to the present invention;

in the figure, 1 is a blade, 2 is a generator cabin, 3 is a tower barrel, 4 is a wind gathering plate, 5 is a connecting part, 6 is a sharp beak, 7 is a wind gathering plate bracket, 8 is a main body, 9 is a flow guide protrusion, 10 is a reinforcing bracket, and 11 is a tower.

Modes for carrying out the invention

The present invention will be further described with reference to specific embodiments, fig. 1 is a schematic front view of an upwind wind type wind turbine with a wind-collecting plate according to the present invention; in the figure, 1 is a blade, 3 uniformly distributed blades 1 form an impeller, an impeller central shaft is connected with a generator cabin 2, the generator cabin 2 is arranged at the top of a tower barrel 3 and can rotate on a horizontal plane, the tower barrel 3 is provided with a tower barrel rectifying device, 4 connecting parts 5 are sequentially arranged from the top to the base of the tower barrel 3 in the figure, a wind gathering plate 4 is arranged at the outer side of the bottommost part of the rotating range of the impeller, a dotted circle in the figure represents the rotating range of the impeller, the wind gathering plate 4 and the connecting parts 5 are provided with a plurality of fixing points, the middle of the wind gathering plate 4 is fixed with one connecting part 5, two ends of the wind gathering plate 4 are also fixed with the other connecting part 5 at the lower part through a wind gathering bracket 7, and a sharp beak 6 is sequentially fixed with the connecting parts 5, and in the figure, the blades 1, the wind gathering plate 4 and the sharp beak 6 are all arranged in the incoming wind direction of the tower barrel 3.

FIG. 2 is a schematic vertical cross-sectional view of an upwind wind turbine of the present invention provided with a wind-collecting plate; in the figure, 1 is a blade, a plurality of blades 1 form an impeller, the central shaft of the impeller is connected with a generator cabin 2, the generator cabin 2 is arranged at the top of a tower barrel 3 and can rotate in a horizontal plane, the tower barrel 3 is provided with a tower barrel rectifying device, 4 connecting parts 5 are sequentially arranged along the direction from the top to the base of the tower barrel 3, an arrow in the figure is an incoming wind direction, 8 is a main body, the main body 8 and the connecting parts 5 are sequentially fixed, a flow guide protrusion 9 is arranged at the tail part of the main body 8, the tail part of the main body 8 has radial elasticity, a sharp beak 6 is arranged, the impeller and a wind gathering plate 4 are arranged in the incoming wind direction of the tower barrel 3, the main body 8 is in the wind blowing direction of the tower barrel, the beak 6 is formed by separating the tower barrel 3 from the main body 3, the sharp beak 6 is connected and fixed with the wind gathering plate 4 through the connecting parts 5 and can synchronously rotate, a wind aligning, a wind convection device is arranged at the connecting parts, a wind convection device is also arranged at the cabin and can independently work or work in a correlation, the wind device is arranged, the wind device has various forms, active solar cell parts of active solar cell, or electric drive is arranged on the blade, the blade is driven generator and the wind gathering plate and the generator can be driven generator.

FIG. 3 is a schematic horizontal cross-sectional view of an upwind wind turbine of the present invention having a wind-collecting plate; in the figure, 3 is a tower cylinder, 4 is a wind-gathering plate, 5 is a connecting part, 6 is a sharp beak, 7 is a wind-gathering plate support, 8 is a main body, and 10 is a reinforcing support, and the position relationship among the wind-gathering plate 4, the sharp beak 7 and the main body 8 in the upwind wind type wind driven generator can be illustrated in the figure.

FIG. 4 is a schematic horizontal cross-sectional view of a downwind wind type wind turbine provided with a wind-collecting plate according to the present invention; in the figure, 3 is a tower cylinder, 4 is a wind-gathering plate, 5 is a connecting part, 6 is a sharp beak, 7 is a wind-gathering plate support, 8 is a main body, 9 is a flow guide protrusion, and 10 is a reinforcing support, so that the position relationship among the wind-gathering plate 4, the sharp beak 7 and the main body 8 in the downwind type wind driven generator can be illustrated in the figure.

FIG. 5 is a schematic view of an opening of a wind collecting plate of a wind turbine according to the present invention; in the figure, 1 is a blade, 4 is a wind gathering plate, arrows are the wind direction, and the wind gathering plate 4 has three different cross sections which can be used according to practical selection.

FIG. 6 is a schematic vertical cross-sectional view of a downwind wind type wind turbine provided with a wind-collecting plate according to the present invention; in the figure, 1 is a blade, 2 is a generator cabin, 3 is a tower, 4 is a wind gathering plate, 5 is a connecting part, 6 is a sharp beak, 7 is a wind gathering plate support, 8 is a main body, 9 is a flow guide protrusion, in the embodiment, an arrow indicates an incoming wind direction, an impeller consisting of the blade 1, the wind gathering plate 4 and the main body 8 are arranged on the downwind side of the tower 3, and the sharp beak 6 is arranged on the upwind side of the tower 3, and is in a straight line with the impeller consisting of the blade 1, the wind gathering plate 4 and the main body 8 through the tower 3.

FIG. 7 is a schematic horizontal cross-sectional view of a pylon provided with a wind-gathering plate according to the present invention; in the figure, 4 is a wind gathering plate, 5 is a connecting part, 7 is a wind gathering plate bracket, 11 is a tower, the cross section of the tower 11 is quadrilateral, when the tower is in the form of the tower, the tower 11 is a columnar framework formed by connecting various brackets, the connecting part 5 is fixed with four top corners of the tower 11, and the wind gathering plate 4 is fixed at the connecting part 5 and rotates around the tower 11.

FIG. 8 is a schematic view of an opening of a multi-layer wind-collecting plate of a wind turbine according to the present invention; in the figure, 1 is a blade, 4 is for gathering the aerofoil, gathers aerofoil 4 and adopts bilayer structure, connects through several muscle between two-layer and keeps the distance, can strengthen gathering the wind effect, chooses for use according to actual conditions.

The above-described embodiments of the present invention are only intended to illustrate the present invention, and some common sense techniques and principles related to wind power generation are not described, and various modifications and combinations can be used according to the prior art, all of which are within the scope of the present application.

Claims

1. The utility model provides a horizontal axis aerogenerator, includes the pylon, the impeller, the generator room, and the impeller rotates and drives the generator room electricity generation, and the generator room is fixed at the pylon top with rotating, its characterized in that: the wind gathering plate is arranged on the tower and is connected with the tower through a connecting portion, the wind gathering plate rotates around the axis of the tower through the connecting portion, the cross section of the wind gathering plate is in a bent sheet shape, the wind gathering plate is arranged at the bottom of the outer side of the rotation range of the impeller, the impeller drifts along with the wind direction, the wind gathering plate rotates synchronously along with the impeller, and the wind gathering plate and the rotation plane of the impeller are kept on the same plane.

2. A horizontal axis wind turbine as claimed in claim 1, wherein: the connecting part can be a bearing, an inner ring of the bearing is fixedly connected with the tower, an outer ring of the bearing is connected with the wind gathering plate, the inner ring of the bearing and the outer ring of the bearing can rotate mutually to enable the wind gathering plate to rotate around the tower, or the connecting part is provided with a track on the tower, the track is fixed around the tower, the wind gathering plate is fixedly provided with a pulley, the pulley rotates along the track, or the connecting part can be a toothed ring, the toothed ring is fixed on the tower, a gear is fixed on the wind gathering plate, the gear is meshed with the toothed ring, and the gear can drive the wind gathering plate to rotate around the tower.

3. A horizontal axis wind turbine as claimed in claim 1, wherein: the tower is a cylindrical tower barrel.

4. A horizontal axis wind turbine as claimed in claim 1, wherein: the width of the wind-gathering plate gradually narrows from the bottom to the two ends.

5. A horizontal axis wind turbine as claimed in claim 1, wherein: the cross section of the wind-gathering plate is provided with a front opening, a rear opening or two side openings relative to the position of the impeller.

6. A horizontal-axis wind generator as set forth in claim 3, wherein: increase fairing in a tower section of thick bamboo one side, fairing includes the trough-shaped main part that extends, the main part cross section is about the V-arrangement, the opening of V-arrangement main part is close to a tower section of thick bamboo surface, the main part passes through connecting portion and tower section of thick bamboo surface connection, make a tower section of thick bamboo and main part form the streamline appearance from a tower section of thick bamboo to the main part direction, the main part passes through connecting portion and encircles a tower section of thick bamboo axle center rotation, two sides of main part are smooth arc, make from a tower section of thick bamboo to these two faces cross section that form together tend to the drop shape structure of optimization, the afterbody of main part is equipped with the water conservancy diversion and swells, the main part afterbody has radial elasticity, there is the reinforcing support connection between the inboard of two sides in the main part.

7. A horizontal axis wind turbine as claimed in claim 3, wherein: the connecting part and the main body are provided with a groove-shaped sharp beak at a position opposite to each other through a tower barrel, the opening of the sharp beak faces the tower barrel and is arranged from the top to the base along the tower barrel, and when the main body rotates, the sharp beak rotates along with the connecting part and is always positioned at a position opposite to the main body and the tower barrel.

8. A horizontal axis wind turbine as claimed in claim 3, wherein: the wind collecting plate and the main body of the rectifying device are also opposite to the tower barrel in the wind-going direction relative to the tower barrel, the wind collecting plate and the main body of the rectifying device are opposite to the tower barrel in the wind-going direction relative to the tower barrel, namely the impeller, and the wind collecting plate and the main body of the rectifying device are on the same side face of the tower barrel.

9. A horizontal-axis wind generator according to any one of claims 6 to 8, wherein: at least three connecting portions are provided along the tower from the top to the base.

10. A horizontal axis wind turbine as claimed in any one of claims 6 to 9, wherein: the wind aligning device is arranged on the connecting part, and the wind aligning device is also arranged on the generator room, and the wind aligning device and the generator room can work independently or in a correlated mode.