WO2024139546A1

WO2024139546A1 - Spoiler device and mounting method therefor, blade, and wind turbine

Info

Publication number: WO2024139546A1
Application number: PCT/CN2023/124686
Authority: WO
Inventors: 唐长金
Original assignee: 江苏金风科技有限公司
Priority date: 2022-12-28
Filing date: 2023-10-16
Publication date: 2024-07-04
Also published as: CN118257700A

Abstract

The present application relates to a spoiler device and a mounting method therefor, a blade, and a wind turbine. The spoiler device is applied to a blade body. The spoiler device comprises a spoiler section and a spoiler unit. The spoiler section comprises a carrier; the carrier is in an annular sleeve shape and can be sleeved on the blade body; the carrier comprises a main body portion, a first connecting portion, and second connecting portions; the main body portion is a flexible strip-shaped body; two free ends of the main body portion in the circumferential direction of the carrier are detachably connected by means of the first connecting portion; the second connecting portions are arranged on the edges of two sides of the carrier in the axial direction of the carrier; the spoiler unit is connected to the main body portion; a plurality of spoiler units protrude from the outer peripheral surface of the main body portion; a plurality of spoiler sections are sequentially arranged in the axial direction of the carrier; and adjacent spoiler sections are detachably connected by means of the second connecting portions. The spoiler device provided by the present application has a simple structure and is convenient to mount.

Description

Turbine device and installation method thereof, blade and wind turbine generator set

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of Chinese Patent Application No. 202211698699.4, filed on December 28, 2022, entitled “Spoiler device and installation method thereof, blade and wind turbine generator set”, and the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the technical field of wind power generation, and in particular to a spoiler device and an installation method thereof, a blade and a wind power generator set.

Background technique

In the existing wind power generation field, there is a certain amount of idle time after the blades are hoisted and assembled and before the unit is connected to the grid. During this time, due to the fact that the blades of the wind turbine are structures of unequal chord lengths and there are torsion angles in the cross sections of the blades, the blades often suffer from problems such as vortex shedding and induced flutter caused by wind flow, which may lead to destructive vibrations, resulting in damage to the blades and reduced service life.

Existing units usually set spoiler nets on the surface of the blades to prevent the blades from vibrating. However, as the capacity of a single wind turbine increases, the size of the blades gradually increases. Correspondingly, the size of the spoiler nets also increases, making the transportation and installation of the nets more difficult, affecting the overall installation efficiency of the unit.

Therefore, there is an urgent need for a spoiler device that is easy to install and use, as well as a corresponding blade and a wind turbine generator set.

Summary of the invention

The embodiment of the present application provides a spoiler device and an installation method thereof, a blade and a wind turbine generator set. The spoiler device has a simple structure and is easy to install.

In the first aspect, according to an embodiment of the present application, a spoiler device is proposed, which is applied to a blade body. The spoiler device includes a spoiler section and a spoiler unit. The spoiler section includes a carrier. The carrier is in the shape of an annular sleeve and can be sleeved on the blade body. The carrier includes a main body, a first connecting part and a second connecting part. The main body is a flexible belt-shaped body. The two free ends of the main body along the circumference of the carrier are detachably connected by the first connecting part, and the second connecting part is arranged on both side edges of the carrier in its own axial direction; the spoiler unit is connected to the main body, and multiple spoiler units are arranged protruding from the outer circumferential surface of the main body; multiple spoiler sections are arranged in sequence along the axial direction of the carrier, and adjacent spoiler sections are detachably connected by the second connecting part.

According to one aspect of an embodiment of the present application, at least part of the carrier includes a plurality of first connection portions, and the plurality of first connection portions are respectively arranged at two free ends of the main body along the circumferential direction, and the plurality of first connection portions located at the same free end are arranged in parallel and spaced apart along the circumferential direction.

According to one aspect of an embodiment of the present application, the spoiler device also includes a fixing portion, which is sleeved on the blade body and fixes the carrier to the blade body, and the two free ends of the fixing portion along the circumferential direction are each connected to a remote control connector, and the two free ends of the fixing portion along the circumferential direction are connected or disconnected through the remote control connector.

According to one aspect of the embodiment of the present application, the fixing portion is sleeved on the outer peripheral surface of the carrier and presses the carrier against the surface of the blade body; or, the fixing portion is connected to the main body.

According to one aspect of the embodiment of the present application, the remote control connection piece is configured to receive a signal from a controller that is communicatively connected thereto to connect or disconnect two free ends of the fixing portion along the circumferential direction.

According to one aspect of the embodiments of the present application, the remote control connector is an electrically controlled magnetic adsorption connector.

According to one aspect of an embodiment of the present application, the fixing portion also includes a limiting member, which includes a bottom plate and a limiting member, the bottom plate is connected to the blade body, at least two limiting members are arranged at intervals along the axial direction of the carrier, the limiting member extends from the bottom plate in a direction away from the blade body, and the fixing portion is at least partially arranged between adjacent limiting members.

According to one aspect of the embodiment of the present application, the first connecting portion includes at least one of a zipper, a buckle, and an adhesive.

According to one aspect of the embodiments of the present application, the second connecting portion has the same structure as the first connecting portion, and adjacent spoiler segments are connected; and/or the second connecting portion includes a buckle and a connecting line, the buckle is connected to the main body, the buckles in adjacent second connecting portions are connected by a connecting line, and adjacent spoiler segments are spaced apart.

In a second aspect, according to an embodiment of the present application, a method for installing a spoiler is proposed, comprising:

Providing a spoiler device as described above;

The main body is arranged around the blade body;

The two free ends of the main body along the circumferential direction are detachably connected via the first connecting part.

According to one aspect of the embodiment of the present application, after the step of detachably connecting through the first connecting part, the method further includes:

Providing a fixing portion, and sleeve the fixing portion on the blade body;

Controlling the remote control connectors to connect to each other and fix the carrier to the blade body;

Install the blade body to the working position;

The control remote connection is disconnected.

In a third aspect, according to an embodiment of the present application, a blade is proposed, comprising a blade body and the spoiler device as described above, wherein the spoiler device is sleeved on the blade body.

In a fourth aspect, according to an embodiment of the present application, a wind turbine generator set is proposed, comprising the blades as described above.

The spoiler device and its installation method, blade and wind turbine generator set provided in the embodiments of the present application realize the arrangement of the spoiler on the blade body by arranging a first connecting portion and a second connecting portion on the spoiler, and utilizing the first connecting portion to connect the two free ends of the carrier in its own circumferential direction end to end, thereby avoiding the prior art of sleeve-connecting the spoiler on the blade body, reducing the difficulty of installing the spoiler, making it easier to install the spoiler on the blade body, reducing manual labor, and improving installation efficiency. At the same time, the second connecting portion on the spoiler can be utilized to realize a detachable connection between adjacent spoiler sections, so that the installation length and coverage range of the spoiler can be more flexibly controlled, and the adjustability of the installation range of the spoiler can be realized, so that the spoiler can meet the installation needs of blades of larger sizes, is suitable for blades of different models and sizes, and has better adaptability.

BRIEF DESCRIPTION OF THE DRAWINGS

The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG1 is a schematic structural diagram of a spoiler section provided in an embodiment of the present application;

FIG2 is a schematic diagram of the installation of a spoiler section and a blade body provided in an embodiment of the present application;

FIG3 is a schematic structural diagram of a spoiler device provided in an embodiment of the present application;

FIG4 is a schematic diagram of the structure of a spoiler device after connection provided by an embodiment of the present application;

FIG5 is a schematic diagram of the structure of another spoiler section provided in an embodiment of the present application;

FIG6 is a schematic structural diagram of a fixing portion provided in an embodiment of the present application;

FIG7 is a schematic diagram of an installation of a fixing portion and a blade body provided in an embodiment of the present application;

FIG8 is a schematic structural diagram of a position limiting member provided in an embodiment of the present application;

FIG9 is a schematic diagram of the installation of a stopper and a blade body provided in an embodiment of the present application;

FIG. 10 is a schematic diagram of the structure of another spoiler device after connection provided in an embodiment of the present application.

In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.
100- spoiler; 200- blade body;
10-spoiler section; X-axial direction; Z-circumferential direction; 20-spoiler unit;
1-main body; 2-first connecting part; 3-second connecting part; 3a-ring buckle; 3b-connecting line;
4-fixing part; 4a-remote control connecting piece; 5-limiting piece; 5a-bottom plate; 5b-limiting part.

Detailed ways

The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least part of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

The directional words in the following description are all directions shown in the figure, and do not limit the specific structure of the spoiler device and its installation method, blades and wind turbine generator set of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the term "multiple" shall refer to the direction shown in the figure. The meaning is more than two. The terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected; the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

It can be understood that the following embodiments of the present application only illustrate the spoiler device and its installation method, blades and wind turbine generator set as examples, but the spoiler device and its installation method, blades and wind turbine generator set provided in the embodiments of the present application are not limited to the following embodiments, and can also be used in other occasions where a spoiler device needs to be installed and to protect it.

In order to better understand the present application, the spoiler device and its installation method, blades and wind turbine generator set provided in the embodiments of the present application are described in detail below with reference to Figures 1 to 10.

Please refer to Figures 1 to 4 together. The embodiment of the present application proposes a spoiler device 100, which is applied to a blade body 200. The spoiler device 100 includes a spoiler segment 10 and a spoiler unit 20. The spoiler segment 10 includes a carrier, which is in the shape of an annular sleeve and can be sleeved on the blade body 200. The carrier includes a main body 1, a first connecting portion 2 and a second connecting portion 3. The main body 1 is a flexible strip-shaped body. The two free ends of the main body 1 along the circumferential direction Z of the carrier are detachably connected by the first connecting portion 2, and the second connecting portion 3 is arranged on both side edges of the carrier in its own axial direction X; the spoiler unit 20 is connected to the main body 1, and a plurality of spoiler units 20 are arranged protruding from the outer peripheral surface of the main body 1; a plurality of spoiler segments 10 are arranged in sequence along the axial direction X of the carrier, and adjacent spoiler segments 10 are detachably connected by the second connecting portion 3.

There is a certain amount of idle time after the wind turbine blades are hoisted and assembled and before they are connected to the grid. Usually, a spoiler 100 is set on the surface of the blades to avoid blade vibration caused by external wind force, to prevent damage, destruction and falling of the blades caused by blade vibration, and to provide a certain safety protection for the blades.

Optionally, spoiler sections of different lengths are provided according to the lengths of the blade bodies 200. 10 is wrapped around it, and multiple spoiler segments 10 can be arranged along the axial direction X to complete the connection, so as to extend the length of the spoiler device 100 in the axial direction X, so that it can be suitable for a blade body 200 of a large size.

Since the blade body 200 needs to be covered in the circumferential direction Z, the carrier of each spoiler segment 10 is configured as an annular sleeve structure to adapt to the contour structure of the blade body 200 so as to sleeve the spoiler segment 10 onto the blade body 200 .

Considering that in the prior art, the spoiler 100 is inserted into the blade body 200 along the axial direction X through a gantry, which is difficult to install, especially for large-sized blades, not only additional installation equipment is required, but also more manual labor. Therefore, in this embodiment, a first connecting portion 2 is provided on the carrier of each spoiler segment 10, and the first connecting portion 2 is used to realize the disassembly and assembly of the spoiler 100.

The first connecting portion 2 is arranged on both sides of the main body 1 along the circumferential direction Z, and the spoiler 100 is assembled and disassembled by butting the two sides end to end in the circumferential direction Z. Since the main body 1 is a flexible strip, when the two sides are butted end to end, the main body 1 is rolled into an arc structure; when the two sides are separated, the main body 1 begins to stretch and can form a planar structure.

Through the above-mentioned first connecting portion 2, when installing the spoiler 100, there is no need to use additional installation equipment. After placing the flexible main body 1 on the blade body 200, the two free ends with the first connecting portion 2 in the circumferential direction Z are connected end to end, so that the spoiler 100 is wrapped around the blade body 200 to complete the installation.

It should be noted that the length of the main body 1 in the circumferential direction Z needs to be appropriately larger than the cross-sectional circumference of the blade. Only in this way can the main body 1 be connected end to end through the first connecting portion 2 in the circumferential direction Z, thereby avoiding the situation where the main body 1 is not connected end to end due to the shortage of the circumferential length of the main body 1 in the Z direction, which ultimately leads to the inability of the main body 1 itself to be connected end to end.

When disassembling the spoiler 100 , the spoiler 100 can be removed from the blade body 200 by separating the first connecting parts 2 at the two free ends connected to each other, which is simpler than the prior art.

The spoiler unit 20 needs to be arranged on the main body 1. When the spoiler device 100 is wrapped around the blade body 200, the spoiler unit 20 is also arranged around the blade body 200. The spoiler unit 20 mainly plays the role of vibration reduction and vibration suppression, and forms shock-absorbing protection for the blade body 200.

Optionally, the spoiler unit 20 can be a foam plastic ball, and the main body 1 can be a mesh structure, which can be made by weaving. Therefore, the spoiler unit 20 can be connected in series to the main body 1. As shown in the figure, a plurality of spoiler units 20 can be arranged on the main body 1. There is no special limitation on the number and specific positions of the spoiler units 20 .

Optionally, the material of the main body 1 may be nylon, PP (polypropylene) or PE (polyethylene).

A second connecting portion 3 is provided at both ends of the spoiler segment 10 along the axial direction X. When the spoiler device 100 has multiple spoiler segments 10, adjacent spoiler segments 10 can be detachably connected through the second connecting portion 3, thereby extending the length of the spoiler device 100 in the axial direction X, covering the blade body 200 over a larger length range, and being able to be set on large-sized blades.

Optionally, the first connection portion 2 and the second connection portion 3 may adopt the same connection method or different connection methods, and the present application does not specifically limit the specific connection method between the two.

As for the connection of the second connecting part 3, the adjacent second connecting parts 3 can be connected after the spoiler segments 10 are respectively covered on the blade body 200 by the first connecting part 2, or the adjacent spoiler segments 10 can be first connected through the second connecting part 3 and then covered on the blade body 200 as a whole through the first connecting part 2. In this way, the spoiler device 100 having multiple spoiler segments 10 is covered on the blade body 200.

Optionally, as shown in the figure, the first connecting portion 2 and the second connecting portion 3 may be a zipper structure.

The spoiler device 100 provided in the embodiment of the present application is realized by arranging a first connecting portion 2 and a second connecting portion 3 on the spoiler device 100, and using the first connecting portion 2 to connect the two free ends of the carrier in its own circumferential direction Z end to end, so as to realize the arrangement of the spoiler device 100 on the blade body 200, thereby avoiding the prior art of sleeve-connecting the spoiler device 100 on the blade body 200, reducing the difficulty of installing the spoiler device 100, and making it easier to install the spoiler device 100 on the blade body 200, reducing manual labor and improving installation efficiency. At the same time, the second connecting portion 3 on the spoiler device 100 can be used to realize a detachable connection between adjacent spoiler sections 10, so that the installation length and coverage range of the spoiler device 100 can be more flexibly controlled, and the adjustability of the installation range of the spoiler device 100 can be realized, so that the spoiler device 100 can meet the installation of larger-sized blades, is suitable for blades of different models and sizes, and has better adaptability.

As an optional embodiment, please refer to Figure 5, at least part of the carrier includes multiple first connection parts 2, and the multiple first connection parts 2 are respectively arranged at two free ends of the main body 1 along the circumferential direction Z, and the multiple first connection parts 2 located at the same free end are arranged in parallel and spaced apart along the circumferential direction Z.

Since the cross-sectional dimensions of the blade vary along the length direction of the blade, different cross-sections have different cross-sectional perimeters, and the corresponding spoiler devices 100 have different sizes, With the same blade type, a suitable size can be freely selected from spoiler devices 100 of different sizes for assembly.

In this embodiment, in order to make the spoiler 100 better adapt to the changes in the cross-sectional dimensions of the blade, as shown in the figure, a first connecting portion 2 can be set at one free end, and multiple first connecting portions 2 can be set at the other free end. When the spoiler 100 is wrapped around the blade body 200, the first connecting portion 2 can be selectively connected.

Multiple first connection parts 2 located at the same free end are arranged in parallel and spaced from each other. Since different first connection parts 2 are located at different positions of the main body 1, when winding and connecting along the circumferential direction Z, the first connection parts 2 at different positions correspond to different circumferential lengths Z after being connected end to end. Therefore, the spoiler 100 can adapt to the changes in the cross-sectional size of the blade and selectively connect, thereby adjusting the covering size of the spoiler 100.

Optionally, a plurality of first connection portions 2 may be provided at the two free ends respectively. The present application does not impose any particular limitation on the specific number of the first connection portions 2. A greater number indicates that the spoiler device 100 has a larger circumferential Z dimension adjustment range and a more flexible adjustment capability.

The spoiler device 100 provided in the embodiment of the present application is capable of selective connection by arranging multiple first connecting parts 2 on the main body 1, thereby forming spoiler devices 100 with different circumferential Z length dimensions, which is better suitable for changes in the cross-sectional dimensions of the blades and can also be suitable for blades of different models, thereby improving the application range of the spoiler device 100 and having better adjustability and flexibility.

As an optional embodiment, please refer to Figures 6 and 7, the spoiler device 100 also includes a fixing part 4, which is sleeved on the blade body 200 and fixes the carrier to the blade body 200, and the two free ends of the fixing part 4 along the circumferential direction Z are each connected to a remote control connector 4a, and the two free ends of the fixing part 4 along the circumferential direction Z are connected or disconnected through the remote control connector 4a.

Considering that the spoiler 100 needs to be fixed when it is sleeved on the blade body 200 to prevent it from falling off, in this embodiment, the fixing part 4 is used to fix it on the blade body 200.

Optionally, the fixing portion 4 may adopt a binding structure and the material may be polyethylene. The fixing portion 4 may be arranged near the blade root so that the spoiler 100 extends and covers the blade tip.

The fixing part 4 is also sleeved on the blade body 200, so that the carrier can be pressed on the blade body. The body 200 forms a fixing pressure on the carrier to prevent it from being separated due to the influence of external wind.

The fixing part 4 can play its fixing role through human control. Specifically, remote control connectors 4a can be set at both ends of the fixing part 4 along the circumferential direction Z, and the staff can control the fixing ability of the fixing part 4 by remotely controlling the on and off of the remote control connectors 4a.

When the fixing part 4 is needed to fix the carrier to the blade body 200, the staff remotely controls the remote control connector 4a to connect the remote control connectors 4a at both ends to each other, and the fixing part 4 forms a closed whole that surrounds the blade body 200, while fixing the carrier and playing its own fixing role, so that the spoiler 100 as a whole does not separate from the blade body 200.

When it is necessary to remove the spoiler 100 as a whole, the staff remotely controls the remote control connector 4a to disconnect the remote control connectors 4a at both ends from each other, and the fixing part 4 is disconnected so that it separates itself from the blade body 200. At the same time, since the spoiler 100 loses the fixation of the fixing part 4 and relies on the action of gravity, the spoiler 100 on the blade body 200 falls off, and the fixing part 4 loses its own fixing function, so that the spoiler 100 is separated from the blade body 200 as a whole.

The spoiler device 100 provided in the embodiment of the present application, by setting a fixing portion 4 in the spoiler device 100, ensures that the carrier is fixed to the blade body 200, thereby improving the stability of the spoiler device 100 socketing, and at the same time, through the remote control connectors 4a at both ends of the fixing portion 4, the staff can remotely connect and control the spoiler 100, which has higher convenience, reduces unnecessary manual labor, and improves the efficiency of disassembly and assembly of the spoiler device 100. Moreover, remote disassembly also avoids the staff from getting close, reducing the risks and safety hazards during the disassembly process.

As an optional embodiment, please refer to FIG. 7 , the fixing portion 4 is sleeved on the outer circumference of the carrier and presses the carrier against the surface of the blade body 200 ; or, the fixing portion 4 is connected to the main body 1 .

Optionally, the fixing part 4 and the carrier are separate structures. When the fixing part 4 adopts a belt-shaped structure, it can be tightly wrapped around the blade body 200 and have a certain contraction pressure, so that the connected carrier can be pressed and bound to the surface of the blade, thereby reliably fixing the carrier.

Optionally, the fixing part 4 can be integrally formed with the carrier, and the two can be connected together by weaving. Similarly, the fixing part 4 can adopt a belt-like structure and have a certain shrinkage ability so that it can be pressed and bound to the surface of the blade, thereby enabling the carrier to be fixed on the blade body 200 along with the fixing part 4.

The spoiler device 100 provided in the embodiment of the present application discloses two types of fixing parts 4 to the carrier. In this way, by fixing the carrier, the stability of the spoiler device 100 during operation is improved, ensuring that the spoiler unit 20 can continuously and stably play a vibration suppression role and preventing failure of the structural device.

As an optional embodiment, the remote control connector 4 a is configured to receive a signal from a controller that is communicatively connected thereto to connect or disconnect the two free ends of the fixing portion 4 along the circumferential direction Z.

Optionally, the remote control connectors 4a at both ends of the fixed part 4 are respectively connected to the remote controller. The staff holds the controller and uses the remote signal transmission function of the controller to transmit the control signal to the remote control connector 4a, so that the remote control connector 4a completes the connection or disconnection action.

The connection or disconnection of the remote control connector 4a determines whether the fixing function of the fixing part 4 is turned on or off. When the fixing part 4 is fixed, the spoiler 100 is connected. When the fixing part 4 is disconnected, the spoiler 100 is removed. Therefore, the staff can use the controller to remotely disassemble and assemble the spoiler 100.

The spoiler device 100 provided in the embodiment of the present application utilizes a controller to complete the connection control of the remote control connector 4a, thereby realizing the remote disassembly and assembly of the spoiler device 100 by the staff, reducing the difficulty of installation, improving the convenience and efficiency of installation, avoiding the staff from performing disassembly and assembly operations at close range, forming safety protection for the staff, and having better safety performance.

As an optional embodiment, the remote control connector 4a is an electrically controlled magnetic adsorption connector.

Optionally, the remote control connector 4a can be an electromagnet. After the staff uses the controller for remote control, the remote control connector 4a is energized to make it magnetic, so that it is firmly adsorbed together through the magnetic attraction of the two ends of the fixing part 4, so that the fixing part 4 presses the carrier tightly to form a reliable fixation.

At the same time, the electromagnet switch is controlled by a remote controller. When the switch is turned off, the electromagnet is powered off and loses its magnetism, so that the two ends of the fixing part 4 are automatically loosened, and the fixing part 4 and the carrier are separated from the blade body 200 by gravity, completing the disassembly of the spoiler 100.

The spoiler device 100 provided in the embodiment of the present application provides a remote-controlled connection method by setting the remote-control connector 4a as an electrically-controlled magnetic adsorption connector, and utilizes electromagnetic conversion to realize the magnetic connection or disconnection of the fixing part 4, thereby realizing the remote control function.

As an optional embodiment, please refer to Figures 8 and 9, the fixing portion 4 also includes a limiting member 5, the limiting member 5 includes a bottom plate 5a and a limiting portion 5b, the bottom plate 5a is connected to the blade body 200, at least two limiting portions 5b are arranged at intervals along the axial direction X of the carrier, the limiting portion 5b extends from the bottom plate 5a in a direction away from the blade body 200, and the fixing portion 4 is at least partially disposed on the adjacent limiting portion 5b between.

When the fixing part 4 is used to fix the carrier, it is also necessary to appropriately limit the fixing part 4 to prevent the fixing part 4 from being offset along the axial direction X, so as to avoid the carrier falling off due to the instability of the fixing part 4 .

In this embodiment, the fixing part 4 is limited by setting a limit piece 5, and the structure of the limit piece 5 is a base plate 5a and a limit piece 5b. Optionally, the base plate 5a can be made of materials such as glass fiber and resin. The limit piece 5b is arranged on the base plate 5a and protrudes from the base plate 5a. The limit piece 5b can be a lug columnar structure, which can form an axial X-shaped obstruction on the fixing part 4. The limit piece 5 is connected to the blade body 200 through the base plate 5a.

Since the fixing part 4 needs to be limited in the axial direction X to avoid axial movement X, the limiting parts 5b set on the base plate 5a need to be arranged at intervals along the axial direction X. The fixing part 4 is located between the limiting parts 5b while pressing and binding the blade body 200, thereby defining the movement range of the fixing part 4 in the axial direction X.

The fixing portion 4 is usually arranged on a side close to the blade root, so the limiting member 5 can be correspondingly arranged on the side close to the blade root, and at least two limiting portions 5b are arranged on the bottom plate 5a in the axial direction X, and the fixing portion 4 is located between adjacent limiting portions 5b, so that the fixing portion 4 can be blocked from moving toward the blade tip and toward the blade root respectively.

The limiting portion 5b is protruded from the bottom plate 5a. The protruding height of the limiting portion 5b here should not be too large. It is sufficient to block the fixing portion 4 in the axial direction X without affecting the arrangement of the spoiler 100.

Considering that the fixing part 4 is sleeved on a circle on the blade body 200 along the circumferential direction Z, optionally, a plurality of limiting members 5 can be arranged on the blade body 200 along the circumferential direction Z, and each limiting member 5 has two limiting portions 5b, so that the fixing part 4 is sleeved between each group of two limiting portions 5b, thereby the position of the fixing part 4 is simultaneously limited by the plurality of limiting members 5, thereby improving the reliability of the fixation.

The spoiler device 100 provided in the embodiment of the present application is provided with a limiter 5 on the fixing portion 4, and uses the limiter 5b to block the movement of the fixing portion 4 in the axial direction X, thereby controlling the movement range of the fixing portion 4 in the axial direction X, preventing the fixing portion from sliding off the blade body 200 in the axial direction X and causing a fixation failure, thereby forming a continuous and stable fixation for the spoiler device 100 and providing a reliable guarantee for sustainable vibration suppression.

As an optional embodiment, the first connecting portion 2 includes a zipper, a buckle, an adhesive At least one.

Optionally, as shown in the figure, in this embodiment, the first connecting portion 2 is set as a zipper structure, and the end-to-end connection of the main body 1 is achieved by adjusting the zipper.

In the spoiler device 100 provided in the embodiment of the present application, the first connection portion 2 can be configured to be connected in a manner such as a zipper, a buckle, an adhesive, etc., which has a variety of connections.

As an optional embodiment, please refer to Figure 10, the second connecting part 3 has the same structure as the first connecting part 2, and adjacent spoiler sections 10 are connected; and/or, the second connecting part 3 includes a buckle 3a and a connecting line 3b, the buckle 3a is connected to the main body 1, the buckles 3a in adjacent second connecting parts 3 are connected by connecting lines 3b, and adjacent spoiler sections 10 are spaced apart.

In some embodiments, when there are multiple spoiler segments 10 connected, adjacent spoiler segments 10 may be directly connected via the zipper structure of the second connecting portion 3 , or may be connected at intervals via the buckles 3 a and connecting lines 3 b between the second connecting portions 3 .

Considering that in some cases the blade body 200 needs to be hoisted or transported, a hoisting point needs to be set on the blade body 200. Therefore, the spoiler 100 cannot completely cover the blade body 200, and a certain gap space needs to be left to complete the hoisting process.

Optionally, the second connecting portion 3 can be set to a buckle 3a structure, and the adjacent second connecting portions 3 are connected by connecting lines 3b. There are gaps between the connecting lines 3b, thereby realizing the connection of the spoiler segments 10 and ensuring the existence of gaps between adjacent spoiler segments 10, which is convenient for lifting the blade body 200.

The spoiler device 100 provided in the embodiment of the present application provides another feasible connection method by setting the second connecting part 3 as a buckle 3a and a connecting line 3b, thereby realizing the connection between adjacent spoiler segments 10 and forming a gap between adjacent spoiler segments 10, fully considering the lifting and transportation of the blade body 200, and realizing the feasibility of lifting the blade on the basis of suppressing the vibration of the blade body 200.

The embodiment of the present application provides a method for installing a spoiler 100, comprising:

S1, providing the spoiler 100 as described above;

S2, placing the main body 1 around the blade body 200;

S3. The two free ends of the main body 1 along the circumferential direction Z are detachably connected via the first connecting part 2 .

After the step of detachably connecting through the first connecting part 2, the method further includes:

S4, providing a fixing part 4, and sleeve the fixing part 4 on the blade body 200;

S5, controlling the remote control connectors 4a to connect with each other and fix the carrier to the blade body 200;

S6, installing the blade body 200 to the working position;

S7, controlling the remote control connector 4a to disconnect.

The above method provides a disassembly and assembly process for the spoiler 100, specifically, the spoiler 100 is first arranged around the blade body 200 through its own main body 1, and the blade body 200 is covered, and the first connecting parts 2 at both ends in the circumferential direction Z are used to complete the head and tail connection of the main body 1, forming a closed whole in the circumferential direction Z, thereby completing the spoiler 100 being sleeved on the blade body 200.

Then, the fixing part 4 is sleeved on the blade body 200, and at the same time, the spoiler device 100 is compressed and tied to fix it to the blade body 200 to prevent the spoiler device 100 from falling off. The fixing part 4 can complete the connection through its own remote control connector 4a, and the staff can remotely control the above connection process.

After the blade body 200 is hoisted and the installation of the unit is completed, the spoiler 100 on the blade body 200 needs to be removed. The remote control connector 4a on the remote control fixing part 4 can be disconnected to make the spoiler 100 lose its fixation on the blade body 200 and fall down together with the fixing part 4 due to gravity, thereby realizing the removal of the spoiler 100.

The embodiment of the present application proposes a blade, comprising a blade body 200 and the spoiler device 100 as described above, wherein the spoiler device 100 is sleeved on the blade body 200 .

An embodiment of the present application provides a wind turbine generator set, comprising the blades as described above.

Although the present application has been described with reference to preferred embodiments, the present application will not be departed from the Various modifications may be made to the invention and components in the invention may be replaced with equivalents as long as they are within the scope of the invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims

A flow spoiler (100) is applied to a blade body (200), the flow spoiler (100) comprising:

A spoiler section (10), the spoiler section (10) comprising: a carrier in the shape of an annular sleeve and capable of being sleeved on the blade body (200), the carrier comprising a main body (1), a first connecting part (2) and a second connecting part (3), the main body (1) being a flexible belt-shaped body, the two free ends of the main body (1) along the circumferential direction (Z) of the carrier being detachably connected via the first connecting part (2), the second connecting part (3) being arranged at the two side edges of the carrier in its own axial direction (X); a spoiler unit (20), connected to the main body (1), a plurality of the spoiler units (20) being arranged protruding from the outer circumferential surface of the main body (1);

The plurality of spoiler segments (10) are arranged in sequence along the axial direction (X) of the carrier, and adjacent spoiler segments (10) are detachably connected via the second connecting portion (3).
The spoiler device (100) according to claim 1, wherein at least part of the carrier comprises a plurality of first connection portions (2), the plurality of first connection portions (2) are respectively arranged at two free ends of the main body portion (1) along the circumferential direction (Z), and the plurality of first connection portions (2) located at the same free end are arranged in parallel and spaced apart along the circumferential direction (Z).
The spoiler device (100) according to claim 1, wherein the spoiler device (100) further comprises a fixing portion (4), wherein the fixing portion (4) is sleeved on the blade body (200) and fixes the carrier to the blade body (200), and each of the two free ends of the fixing portion (4) along the circumferential direction (Z) is connected to a remote control connector (4a), and the two free ends of the fixing portion (4) along the circumferential direction (Z) are connected or disconnected via the remote control connector (4a).
The spoiler device (100) according to claim 3, wherein the fixing portion (4) is sleeved on the outer peripheral surface of the carrier and presses the carrier against the blade body (200). s surface;

Alternatively, the fixing portion (4) is connected to the main body (1).
The spoiler (100) according to claim 3, wherein the remote control connection (4a) is configured to receive a signal from a controller that is communicatively connected thereto to connect or disconnect the two free ends of the fixing portion (4) along the circumferential direction (Z).
The spoiler device (100) according to claim 5, wherein the remote control connector (4a) is an electrically controlled magnetic adsorption connector.
According to the spoiler device (100) according to claim 3, the fixing portion (4) also includes a limiting member (5), the limiting member (5) includes a bottom plate (5a) and a limiting portion (5b), the bottom plate (5a) is connected to the blade body (200), at least two limiting portions (5b) are arranged at intervals along the axial direction (X) of the carrier, the limiting portion (5b) extends from the bottom plate (5a) in a direction away from the blade body (200), and the fixing portion (4) is at least partially arranged between adjacent limiting portions (5b).
The spoiler device (100) according to claim 1, wherein the first connecting portion (2) comprises at least one of a zipper, a buckle, and an adhesive.
The spoiler device (100) according to claim 1, wherein the second connecting portion (3) has the same structure as the first connecting portion (2), and adjacent spoiler sections (10) are arranged in contact with each other;

And/or, the second connecting portion (3) comprises a buckle (3a) and a connecting line (3b), the buckle (3a) is connected to the main body (1), the buckles (3a) in adjacent second connecting portions (3) are connected by connecting lines (3b), and adjacent spoiler sections (10) are arranged at intervals.
A method for installing a spoiler device (100), comprising:

Provide a spoiler device (100) according to any one of claims 1 to 9;

The main body (1) is arranged around the blade body (200);

The two free ends of the main body (1) along the circumferential direction (Z) are detachably connected via the first connecting portion (2).
The installation method according to claim 10, wherein after the step of detachably connecting through the first connecting portion (2), it further comprises:

Providing a fixing portion (4), and sleeve-mounting the fixing portion (4) on the blade body (200);

Controlling the remote control connecting members (4a) to connect to each other and fixing the carrier to the blade body (200);

Installing the blade body (200) to a working position;

The remote control connection piece (4a) is controlled to be disconnected.
A blade, comprising:

Blade body (200);

The flow spoiler (100) according to any one of claims 1 to 9, wherein the flow spoiler (100) is sleeved on the blade body (200).
A wind turbine generator set comprises the blade according to claim 12.