CN215949727U

CN215949727U - Flow guide structure of wind driven generator blade

Info

Publication number: CN215949727U
Application number: CN202122706790.3U
Authority: CN
Inventors: 杨衎; 李磊; 李造申
Original assignee: Baoding Green Power Wind Power Equipment Technology Co ltd
Current assignee: Baoding Green Power Wind Power Equipment Technology Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-03-04
Anticipated expiration: 2031-11-06

Abstract

The utility model discloses a flow guide structure of a wind driven generator blade, and belongs to the technical field of wind driven generators. The guide structure comprises a guide plate, the guide plate is connected with the blades through a plurality of discontinuous connecting plates, and the guide plate is connected with the connecting plates through a supporting plate. The connecting plate is of a flat plate structure, and anti-skid grains are arranged at the bottom of the connecting plate. The utility model adopts the flow guide structure of the wind driven generator blade, and can solve the problems that the existing flow guide structure is easy to damage, poor in universality and difficult to produce.

Description

Flow guide structure of wind driven generator blade

Technical Field

The utility model relates to the technical field of wind driven generators, in particular to a flow guide structure of a wind driven generator blade.

Background

The wind power blade is an important component of a wind power generation device, and generally, the root of the wind power blade needs to be connected with a hub, and energy is generated through rotation of the blade during operation. In the manufacturing of the blade, the blade root needs to be connected with the hub of the unit and is made into a cylindrical shape, so that a part of wind energy is inevitably lost. In order to compensate for the energy loss, a flow guiding structure is added at the root of the blade. The material of water conservancy diversion structure leads to the length and is different with the material of blade, and the water conservancy diversion structure adopts the working of plastics, and the blade adopts fiber resin, and there is great difference in two kinds of material performance. The internal deformation of the blade is changed in real time in the stress process, so that the flow guide structure on the surface of the blade is driven to deform; when the blade deformation is too big, the diversion structure can produce serious deformation or crackle to take place to fall scheduling problem.

Utility model CN211082129U discloses a wind-powered electricity generation blade spoiler and vortex device to specific the disclosure including the baffle, the connecting plate is connected with the one end of baffle, forms acute angle region and obtuse angle region between the both sides of baffle and the connecting plate respectively, and the stiffening rib setting is in the obtuse angle region, and one side and the baffle of stiffening rib are connected, and the another side and the connecting plate of stiffening rib are connected. In the disclosure of this patent, the web is a unitary arcuate plate and the baffle is connected to the vane by a unitary web; curved webs are not easy to produce and are also relatively scrap. Because the surface of the blade is uneven, the baffle is connected with the blade by adopting a whole connecting plate, and the connecting plate and the surface of the blade are easy to interfere, so that the connection of the baffle is unstable; in addition, at different positions of the blade, the baffle plates need to be connected by different connecting plates, and the universality of the connecting plates is poor; in addition, the blades drive the connecting plates to continuously deform, and the strain of the baffle and the connecting plates is large, so that the baffle and the connecting plates are easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flow guide structure of a wind driven generator blade, which solves the problems that the existing flow guide structure is easy to damage, poor in universality and difficult to produce.

In order to achieve the purpose, the utility model provides a flow guide structure of a wind driven generator blade, which comprises a flow guide plate, wherein the flow guide plate is connected with the blade through a plurality of discontinuous connecting plates, and the flow guide plate is connected with the connecting plates through supporting plates.

Preferably, the support plate is located on one side of the bottom of the baffle or on both sides of the bottom of the baffle.

Preferably, the supporting plate is of a triangular structure, one side edge of the supporting plate is fixedly connected with the guide plate, and the bottom edge of the supporting plate is fixedly connected with the connecting plate.

Preferably, the guide plate is an arc-shaped plate obliquely arranged on the connecting plate.

Preferably, the connecting plate is of a flat plate structure, and the guide plate is located on the connecting plate and is fixedly connected with the connecting plate.

Preferably, the two end faces of the guide plate are flush with the edges of the connecting plates at the two ends of the bottom of the guide plate.

Preferably, the connecting plate is circular, oval or polygonal.

Preferably, the bottom of the connecting plate is provided with anti-skid grains.

Preferably, the anti-slip lines are arranged at two ends of the connecting plate or are uniformly arranged on the connecting plate.

Preferably, the anti-slip lines are in a circular, stripe or polygonal structure.

According to the flow guide structure of the wind driven generator blade, the flow guide plate is fixedly connected with the blade through the plurality of discontinuous connecting plates, each connecting plate can adapt to the curvature or the unevenness of the blade at different positions, and the universality is good; influence between different connecting plates is less to improve the stability that connecting plate and blade are connected, get into and improve the stability that the water conservancy diversion structure is fixed on the blade. Continuous strain transmission can not be carried out between the discontinuous connecting plates, so that the influence of the deformation of the blades on the connecting plates is small, the damage of the connecting plates is reduced, and the service life of the flow guide structure is prolonged.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of a flow guiding structure of a wind turbine blade according to the present invention;

FIG. 2 is a schematic top view of a wind turbine blade according to an embodiment of the present invention;

FIG. 3 is a schematic side view of a wind turbine blade according to an embodiment of the present invention;

fig. 4 is a schematic view of an installation structure of an embodiment of a flow guiding structure of a wind turbine blade according to the present invention.

Reference numerals

1. A baffle; 2. a support plate; 3. a connecting plate; 4. anti-skid lines; 5. a blade.

Detailed Description

The technical solution of the present invention is further illustrated by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Fig. 4 is a schematic view of an installation structure of an embodiment of a flow guiding structure of a wind turbine blade according to the present invention. As shown, the flow directing structure is provided on the pressure side of the root of the blade 5. Therefore, the fluid speed of the pressure surface can be reduced, the pressure of the pressure surface is increased, the flow rate of the suction surface is improved, the pressure of the suction surface is reduced, the pressure difference between the pressure surface and the suction surface is increased, and the purpose of improving energy is achieved. The guide structure is arranged at the root of the blade 5, so that the loss of root energy can be compensated.

Fig. 1 is a schematic perspective view of a flow guide structure of an embodiment of a wind turbine blade of the present invention, fig. 2 is a schematic top view of the flow guide structure of the embodiment of the wind turbine blade of the present invention, and fig. 3 is a schematic side view of the flow guide structure of the embodiment of the wind turbine blade of the present invention. As shown in the figure, the flow guide structure of the wind driven generator blade 5 comprises a flow guide plate 1, wherein the flow guide plate 1 is connected with the blade 5 through a plurality of discontinuous connecting plates 3. The guide plate 1 is connected with the connecting plate 3 through a supporting plate 2. The guide plate 1 is an arc-shaped plate which is obliquely arranged on the connecting plate 3, and the guide plate 1 is positioned on the connecting plate 3 and is fixedly connected with the connecting plate 3. The guide plate 1 has guiding and absorbing functions on the airflow on the surface of the root part of the blade 5. The guide plate 1 is fixedly connected with the blade 5 in an adhesion manner through the connecting plate 3, so that the guide plate 1 is fixed on the blade 5.

The supporting plate 2 is of a triangular structure, one side edge of the supporting plate 2 is fixedly connected with the flow guide plate 1, and the bottom edge of the supporting plate 2 is fixedly connected with the connecting plate 3. The supporting plate 2 is positioned on one side of the bottom of the guide plate 1 or on two sides of the bottom of the guide plate 1; that is, the guide plate 1 is fixedly connected with the connecting plate 3 through the supporting plate 2 on one side or fixedly connected with the connecting plate 3 through the supporting plates 2 on both sides. The setting of backup pad 2 has improved the joint strength of deflector and connecting plate 3 to improve guide plate 1's intensity, reduced guide plate 1 and warp under the air current effect, alleviateed guide plate 1's damage.

The connecting plate 3 is of a flat plate structure, so that the production of the connecting plate 3 is facilitated. The connecting plates 3 are discontinuously distributed at the bottom of the guide plate 1, namely the guide plate 1 is connected with the blades 5 through a plurality of connecting plates 3. The connecting plate 3 that sets up discontinuously has improved the commonality of water conservancy diversion structure installation, can satisfy the installation of guide plate 1 on different positions blade 5, has reduced the interference that connecting plate 3 and blade 5 produced because of the 5 roughness problems of blade, has improved the joint strength between guide plate 1 and the blade 5. In addition, the discontinuous connecting plate 3 can avoid continuous and uneven strain inside the connecting plate 3 when the blades 5 deform, so that the strain inside the connecting plate 3 is reduced, the damage to the connecting plate 3 is relieved, and the service life of the flow guide structure is prolonged.

The connecting plates 3 are at least arranged at two ends of the bottom of the guide plate 1, and two end faces of the guide plate 1 are flush with the edges of the connecting plates 3 at two ends of the bottom of the guide plate 1. The middle part of the guide plate 1 can be provided with a plurality of connecting plates 3 according to the requirement. The connecting plate 3 is round, oval or polygonal, and the connecting plate 3 can also be a polygon-like structure formed by straight lines and curves.

The bottom of connecting plate 3 is provided with anti-skidding line 4, and anti-skidding line 4 sets up at the both ends of connecting plate 3 or even setting on connecting plate 3. The anti-slip lines 4 increase the bonding area of the connecting plate 3 and the blade 5, so that the bonding firmness of the connecting plate 3 and the blade 5 is improved. The antiskid lines 4 are in a circular, stripe or polygonal structure.

Therefore, the utility model adopts the flow guide structure of the wind driven generator blade, and can solve the problems that the existing flow guide structure is easy to damage, poor in universality and difficult to produce.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a wind turbine blade's water conservancy diversion structure which characterized in that: the guide plate is connected with the blades through a plurality of discontinuous connecting plates, and the guide plate is connected with the connecting plates through a supporting plate.

2. The flow guiding structure of a wind turbine blade according to claim 1, wherein: the supporting plate is positioned on one side of the bottom of the guide plate or on two sides of the bottom of the guide plate.

3. The flow guiding structure of a wind turbine blade according to claim 1 or 2, wherein: the supporting plate is of a triangular structure, one side edge of the supporting plate is fixedly connected with the flow guide plate, and the bottom edge of the supporting plate is fixedly connected with the connecting plate.

4. The flow guiding structure of a wind turbine blade according to claim 1, wherein: the guide plate is an arc-shaped plate which is obliquely arranged on the connecting plate.

5. The flow guiding structure of a wind turbine blade according to claim 1, wherein: the connecting plate is of a flat plate structure, and the guide plate is positioned on the connecting plate and is fixedly connected with the connecting plate.

6. The flow guiding structure of a wind turbine blade according to claim 1, wherein: and the two end faces of the guide plate are flush with the edges of the connecting plates positioned at the two ends of the bottom of the guide plate.

7. The structure of guiding wind of a wind turbine blade according to claim 1, 5 or 6, wherein: the connecting plate is circular, oval or polygonal.

8. The flow guiding structure of a wind turbine blade according to claim 1, wherein: the bottom of the connecting plate is provided with anti-skid grains.

9. The flow guiding structure of a wind turbine blade according to claim 8, wherein: the anti-slip patterns are arranged at two ends of the connecting plate or are uniformly arranged on the connecting plate.

10. The flow guiding structure of a wind turbine blade according to claim 8 or 9, wherein: the anti-slip lines are in a circular, stripe or polygonal structure.