CN211144712U

CN211144712U - Wind power blade vortex generator

Info

Publication number: CN211144712U
Application number: CN201922286400.4U
Authority: CN
Inventors: 孟祥鹿; 晏居川
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-31
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a wind power blade vortex generator, wherein an inserting unit comprises a base plate and a wing plate vertical to the base plate, one inserting side of the base plate is provided with an inserting groove, and the inner wall of the inserting groove is provided with a convex angle strip; the other inserting side of the base plate is provided with an inserting convex block, and the side edge of the inserting convex block is provided with a concave angle seam; the inserting convex blocks are matched with the inserting grooves, and the convex angle strips are matched with the corresponding concave angle gaps. When generator unit is atress in the perpendicular to paddle surface direction, can transmit power for adjacent grafting unit through the salient angle strip, and then conduct to whole vortex generator, can realize reliably pegging graft between the unit, reach that the installation is convenient, high-efficient, can peg graft according to total length needs wantonly, whole generator becomes an organic whole after pegging graft, and the bonding is firm, longer purpose of life.

Description

Wind power blade vortex generator

Technical Field

The utility model relates to an install vortex generator on aerogenerator paddle surface.

Background

When the wind driven generator blade works, because the ambient atmosphere in which the blade works flows unevenly, and the airflow at the tail end of the blade is more uneven, the blade can be subjected to a larger turbulent flow. The influence of turbulence on wind power generators is mainly reflected in the following two aspects: firstly, the vibration of the blade is caused, the swing amplitude of the thinner side is the largest, and the local fatigue of the blade can be accelerated to a great extent, so that the blade is cracked and can be broken when serious; secondly, the working efficiency of the blade is reduced, and the wind energy conversion rate is reduced.

In order to solve the above turbulence problem, it is common practice to mount vortex generators on the surface of the wind turbine blade. The vortex generator comprises a base plate (also called a wing seat) fixed with the surface of the blade, and guide vanes vertical to the base plate are arranged on the base plate. The base plate generally adopts two forms, the first form is to install a whole base plate with enough number of wings on the same blade, the advantage of this way is to connect with the blade integrally conveniently, reliably, the disadvantage is (1), because the vortex generator is relatively large in size and inconvenient for warehousing and transportation; (2) and because the length requirements of the vortex generators are different due to different sizes of the blades, the mold cost and the production cost of suppliers are increased, and the standardized manufacture of the vortex generators is not facilitated. The second form is to make the vortex generators as small-sized unit structures, mounted side by side on the blade on site, which overcomes the drawbacks of the first form but creates the following problems: because the surface bonding fastness of each unit base plate and the paddle is different, individual base plates can loosen and fall off after being used for a period of time, and the service life is influenced; in order to overcome the problem, a mortise-tenon insertion mode is adopted between adjacent base plates, although the mode establishes communication among all the base plates, the unit base plates are not limited by adjacent units in the direction vertical to the surface of the blade, and the problem that individual base plates are loosened and fall off due to the bonding defect still occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a wind-powered electricity generation paddle vortex generator is provided, forms through a plurality of unit equipment, connects more firmly between the adjacent unit bed plate to improve whole life.

The technical scheme of the utility model as follows:

wind-powered electricity generation paddle vortex generator pegs graft the unit including vortex generator, the unit of pegging graft include the fin of bed plate and perpendicular to bed plate, its characterized in that: one inserting side of the base plate is provided with an inserting groove, and at least one groove inner wall of the inserting groove is processed with a convex angle strip; the other inserting side of the base plate is provided with an inserting convex block, and at least one side of the inserting convex block is processed with a concave angle seam; the inserting convex blocks are matched with the inserting grooves, and the convex angle strips are matched with the corresponding concave angle seams.

The wind-power blade vortex generator is formed by more than two plug-in units in parallel, the side edges of adjacent plug-in units are mutually plugged, the plug-in lug is located in the plug-in groove, and the convex angle strip is located in the corresponding concave angle gap.

Preferably, convex angle bars are respectively processed on the inner walls of the two grooves of the inserting groove; concave angle seams are respectively processed on two sides of the insertion convex block.

Preferably, the angle of the fillet strip and the fillet slot are both 90 degrees.

The utility model has the advantages of: wind-powered electricity generation paddle vortex generator unit can transmit power to adjacent grafting unit through the salient angle strip when perpendicular to paddle surface direction atress, and then conduct to whole vortex generator, even certain grafting unit is connected with the paddle and is firm not enough and also can not drop, on the other hand just because each grafting unit shares the atress each other, whole atress more even and with the paddle between be connected more reliably. On this basis the utility model discloses can realize reliable grafting between the unit, reach that the installation is convenient, high-efficient, can peg graft wantonly according to total length needs, whole generator becomes an organic whole after pegging graft, and the bonding is firm, the longer purpose of life.

Drawings

Fig. 1 is a schematic structural diagram of a vortex generator unit according to an embodiment of the present invention.

Fig. 2 is a schematic right view of fig. 1.

Fig. 3 is a schematic left side view of fig. 1.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1, 2 and 3, embodiments of the present invention include a vortex generator plug unit comprising a base plate 1, the base plate 1 typically being of polycarbonate. The base plate 1 of each plug-in unit is fitted with a set of wings perpendicular to the base plate 1, namely a left wing 2 and a right wing 5.

The left side of the base plate 1 is provided with an inserting groove 3, and the inner wall (the inner wall in the left-right direction) of the groove of the inserting groove 3 is provided with a convex angle strip 31; the right side of the base plate is provided with an inserting convex block 4, and the side edge (the side edge in the left and right directions) of the inserting convex block 4 is provided with a concave angle seam 41; the plug-in lugs 4 are adapted to the plug-in grooves 3, and the convex angle strips 31 are adapted to the corresponding concave angle slots 41.

The wind power blade vortex generator is formed by the splicing units in parallel, the side edges of the adjacent splicing units are spliced with each other, the splicing convex block 4 of the left splicing unit is positioned in the splicing groove 3 of the right splicing unit, and the convex angle strip 31 of the right splicing unit is embedded into the concave angle slot 41 of the left splicing unit.

Preferably, the angles of the convex angle strips 31 and the concave angle slots 41 are both 90 degrees. That is, the angle indicated by reference numeral 41 in fig. 2 and the angle indicated by reference numeral 31 in fig. 3 are both 90 degrees.

The vortex generator inserting unit is produced in a standardized mode in a manufacturing factory, after the vortex generator inserting unit is transported to an installation site, the vortex generator is firstly formed by inserting the vortex generator between units, and then the vortex generator is integrally connected with the blade to complete installation. The connection mode is that all base plates are taken as a whole, and the bottom surface and the surface of the blade are mutually bonded.

Claims

1. Wind-powered electricity generation paddle vortex generator pegs graft the unit including vortex generator, the unit of pegging graft include bed plate (1) and the fin of perpendicular to bed plate (1), its characterized in that: one plugging side of the base plate (1) is provided with a plugging groove (3), and at least one groove inner wall of the plugging groove (3) is processed with a convex angle strip (31); the other inserting side of the base plate (1) is provided with an inserting convex block (4), and at least one side of the inserting convex block (4) is processed with a concave angle slot (41); the inserting convex blocks (4) are matched with the inserting grooves (3), and the convex angle strips (31) are matched with the corresponding concave angle gaps (41).

2. The wind blade vortex generator of claim 1 wherein: wind-powered electricity generation paddle vortex generator is constituteed side by side to more than two grafting units, and adjacent grafting unit side is pegged graft mutually, grafting lug (4) are located in grafting recess (3) to nook closing strip (31) are located corresponding reentrant corner seam (41).

3. The wind blade vortex generator of claim 1 or 2 wherein: convex angle bars (31) are respectively processed on the inner walls of the two grooves of the inserting groove (3); concave angle slots (41) are respectively processed on two sides of the splicing convex block (4).

4. The wind blade vortex generator of claim 1 or 2 wherein: the angles of the convex angle strips (31) and the concave angle slots (41) are both 90 degrees.

5. The wind blade vortex generator of claim 3 wherein: the angles of the convex angle strips (31) and the concave angle slots (41) are both 90 degrees.