Connecting structure and blade with vortex generator

Abstract

The utility model relates to the technical field of wind power generation, and provides a connecting structure and a blade with a vortex generator. The connecting structure comprises a first connecting part and a second connecting part which are used for connecting the blade and the vortex generator, a connecting piece used for connecting the first connecting part and the second connecting part, and heating assemblies arranged in the first connecting part and the second connecting part correspondingly. According to the utility model, the problems of inaccurate positioning and low bonding strength of the blade and the vortex generator can be solved, the bonding time of the blade and the vortex generator is prolonged, and the construction cost and the operation and maintenance cost of a wind generating set are saved; the vortex generator is further provided with the connecting structure, the heating assembly is arranged in the connecting structure, the vortex generator can be heated, the vortex generator can be more firmly bonded on the blade, and the vortex generator has a strong bonding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a connection structure and a blade with a vortex generator. Background Art

[0002] Blades are the core components of wind turbines. The aerodynamic characteristics of blades directly affect their efficiency in capturing wind energy, and thus the power output of wind turbines. Modern wind turbine blades are usually equipped with vortex generators to delay or prevent flow separation that may occur at the root of the blade or most of the blade span, so that the blades maintain good lift characteristics and ensure the power output of the wind turbine.

[0003] At present, the existing vortex generators generally add specific pneumatic accessories to the blade surface, which requires additional production of pneumatic accessories and positioning and pasting and fixing them on the blade surface. The positioning process of such pneumatic accessories is complicated, and the pasting and fixing process also needs to be tested for a long time, which increases the engineering cost and operation and maintenance cost of the wind turbine. Therefore, the above problems need to be improved. Utility Model Content

[0004] The utility model provides a connection structure and a blade with a vortex generator, which can solve the problem that the positioning process of pneumatic accessories is complicated, and the pasting and fixing process also needs to be tested for a long time, thereby increasing the engineering cost and operation and maintenance cost of the wind turbine generator set. The specific implementation method is as follows:

[0005] A connection structure, which corresponds to a vortex generator on a blade. The connection structure includes a first connection component and a second connection component for connecting the blade and the vortex generator, a connector for connecting the first connection component and the second connection component, and a heating component respectively arranged in the first connection component and the second connection component. The first connection component has a receiving groove for accommodating the vortex generator. The first connection component, the second connection component and the connector connect the vortex generator and the blade, and the vortex generator is bonded to the blade through the heating component.

[0006] Furthermore, the first connecting component and the second connecting component are both provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the heating component.

[0007] Furthermore, the heating component includes a heating pipe having a water inlet and a water outlet, the water inlet is connected to the water inlet pipe, the water outlet is connected to the water outlet pipe, and the heating pipe is respectively arranged in the first connecting component and the second connecting component.

[0008] Furthermore, the heating pipe is spirally wound inside the first connecting component and the second connecting component respectively.

[0009] Further, the water inlet pipe includes a first pipe and an adapter ring arranged at a port of the first pipe, wherein the adapter ring is rotatably connected to the first pipe;

[0010] The water outlet pipe includes a second pipe arranged corresponding to the first pipe, and the first pipe and the second pipe are connected via an adapter ring.

[0011] Furthermore, a sealing structure is provided at the connection between the adapter ring and the second pipe.

[0012] Furthermore, a limiting groove is provided at the port of the first pipe, and a limiting protrusion is provided at the adapter ring corresponding to the limiting groove. The limiting protrusion is arranged in the limiting groove and can rotate along the limiting groove.

[0013] Furthermore, a groove is formed at the end of the first pipe, and a guide portion is provided on the second pipe corresponding to the groove. When the first pipe and the second pipe are connected, the guide portion is sleeved in the groove.

[0014] Furthermore, the first connecting component is provided with a first connecting base plate, and the second connecting component is provided with a second connecting base plate corresponding to the first connecting base plate, and the first connecting base plate and the second connecting base plate are locked and connected via a connecting piece.

[0015] In addition, the utility model also provides a blade with a vortex generator, including a connection structure.

[0016] Due to the adoption of the above technical solution, the beneficial technical effects of the utility model are:

[0017] 1. The utility model can solve the problems of inaccurate positioning of blades and vortex generators and low bonding strength, improve the bonding time of blades and vortex generators, and save the engineering cost and operation and maintenance cost of wind turbine generator sets;

[0018] 2. The utility model is provided with a connection structure, and a heating component is provided in the connection structure, which can heat the vortex generator, so that the vortex generator is more firmly bonded to the blade, so that it has a stronger bonding effect;

[0019] 3. The utility model is provided with a spring and an extrusion plate, which can enhance the connection stability of the first connecting component and the second connecting component. At the same time, the extrusion plate has a heat-conducting effect, which can transfer the heat of the heating component to the vortex generator and the blades, thereby accelerating the bonding speed of the vortex generator and the blades, thereby improving work efficiency; BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a connection structure in a specific embodiment of the utility model;

[0021] Figure 2This is a schematic diagram of the structure of the second connecting component in a specific embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the heating component in a specific embodiment of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of a connection structure in a specific embodiment of the utility model;

[0024] Figure 5 It is a partial enlarged view of a connection structure in a specific embodiment of the utility model;

[0025] Figure 6 For this utility model Figure 4 A magnified view of the structure of part A;

[0026] Figure 7 It is a structural schematic diagram of a connection structure and a blade with a vortex generator in a specific embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Connecting structure, 11. First connecting component, 111. First connecting bottom plate, 12. Second connecting component, 121. Second connecting bottom plate, 13. Heating pipe, 131. Water inlet, 132. Water outlet, 14. Connecting piece, 15. Extrusion plate, 16. Spring, 17. Water inlet pipe, 171. First pipe, 172. Limiting protrusion, 173. Limiting groove, 174. Groove, 175. Adapter ring, 18. Water outlet pipe, 181. Guide part, 182. Sealing rubber ring, 183. Second pipe, 2. Blade, 3. Vortex generator. DETAILED DESCRIPTION

[0029] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0030] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0031] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0032] Embodiment 1, combination Figures 1 to 6 This embodiment provides a connection structure, wherein the connection structure 1 is arranged corresponding to the vortex generator 3 on the blade 2, and the connection structure 1 includes a first connection component 11 and a second connection component 12 for connecting the blade 2 and the vortex generator 3, a connector 14 for connecting the first connection component 11 and the second connection component 12, and a heating component respectively arranged in the first connection component 11 and the second connection component 12, wherein the first connection component 11 has a receiving groove for accommodating the vortex generator 3, and the first connection component 11, the second connection component 12 and the connector connect the vortex generator 3 and the blade 2, and the vortex generator 3 is bonded to the blade 2 through the heating component. By heating with the heating component, the bonding speed of the blade 2 and the vortex generator 3 can be accelerated, thereby improving the working efficiency.

[0033] Specifically, the first connecting component 11 is provided with a first connecting bottom plate 111, and the second connecting component 12 is provided with a second connecting bottom plate 121 corresponding to the first connecting bottom plate 111, and the first connecting bottom plate 111 and the second connecting bottom plate 121 are locked and connected through the connecting member 14. The first connecting bottom plate 111 is provided at both ends of the first connecting component 11, and the second connecting bottom plate 121 is provided at both ends of the second connecting component 12 corresponding to the first connecting bottom plate 111. The first connecting bottom plate 111 and the second connecting bottom plate 121 are both provided with axial holes, and the connection between the first connecting bottom plate 111 and the second connecting bottom plate 121 is achieved by the matching of the connecting member 14 with the axial hole; the connecting member 14 includes a locking bolt and a locking nut, and the locking connection between the first connecting bottom plate 111 and the second connecting bottom plate 121 is achieved by the locking bolt passing through the axial hole and matching with the locking nut thread.

[0034] Specifically, a temperature sensor is further disposed in the first connecting component 11 . The temperature sensor is electrically connected to an external controller and can monitor the temperature change of the heating component in real time.

[0035] Specifically, the first connecting member 11 and the second connecting member 12 are both provided with a water inlet pipe 17 and a water outlet pipe 18, and the water inlet pipe 17 and the water outlet pipe 18 are both connected to the heating assembly. When in use, water vapor is introduced into the water inlet pipe 17, and the water vapor flows through the heating assembly and flows out from the water outlet pipe 18, so that the heating assembly is heated, thereby improving the bonding strength between the vortex generator 3 and the blade 2.

[0036] Specifically, the heating assembly includes a heating pipe 13 having a water inlet 131 and a water outlet 132, wherein the water inlet 131 is connected to the water inlet pipe 17, and the water outlet 132 is connected to the water outlet pipe 18, and the heating pipe 13 is respectively arranged in the first connecting part 11 and the second connecting part 12. Preferably, in order to improve the heat transfer effect of the heating assembly, the heating pipe 13 is spirally wound in the first connecting part 11 and the second connecting part 12.

[0037] Specifically, the water inlet pipe 17 includes a first pipe 171 and an adapter ring 175 disposed at the end of the first pipe 171, and the adapter ring 175 is rotatably connected to the first pipe 171; the water outlet pipe 18 includes a second pipe 183 disposed corresponding to the first pipe 171, and the first pipe 171 and the second pipe 183 are connected through the adapter ring 175. The water inlet pipes 17 and the water outlet pipes 18 of two adjacent connection structures 1 are arranged alternately. When connecting, the second pipe 183 is aligned through the adapter ring 175, so that the second pipe 183 is docked with the first pipe 171, and then the adapter ring 175 is rotated so that the adapter ring 175 is threadedly connected to the second pipe 183, thereby realizing the connection of the heating components in the two adjacent connection structures 1, which is convenient for disassembly and reduces the difficulty of maintenance.

[0038] Specifically, in order to enable the adapter ring 175 to rotate along the first pipe 171, a limiting groove 173 is provided at the port of the first pipe 171, and the adapter ring 175 is provided with a limiting protrusion 172 corresponding to the limiting groove 173, and the limiting protrusion 172 is arranged in the limiting groove 173 and can rotate along the limiting groove 173. When connecting, the adapter ring 175 is rotated so that the adapter ring 175 and the second pipe 183 are threadedly connected, thereby realizing the connection of the heating components in the two adjacent connection structures 1.

[0039] Specifically, in order to increase the connection sealing performance of the water inlet pipe 17 and the water outlet pipe 18, a groove 174 is formed at the end of the first pipe 171, and a guide portion 181 is provided at the second pipe 183 corresponding to the groove 174. When the first pipe 171 and the second pipe 183 are connected, the guide portion 181 is sleeved in the groove 174. A transition fillet is provided at the end of the groove 174, so that the guide portion 181 can smoothly enter the groove 174, thereby realizing the connection between the first pipe 171 and the second pipe 183. At the same time, the connection sealing performance of the water inlet pipe 17 and the water outlet pipe 18 can also be improved.

[0040] In order to further improve the connection sealing performance of the water inlet pipe 17 and the water outlet pipe 18, a sealing structure is provided at the connection between the adapter ring 175 and the second pipe 183. Preferably, the sealing structure is provided as a sealing rubber ring 182. When the second pipe 183 is connected to the first pipe 171, the inner ring of the sealing rubber ring 182 abuts against the outer wall of the second pipe 183, and the outer ring of the sealing rubber ring 182 abuts against the inner wall of the first pipe 171, thereby enhancing the connection sealing performance of the second pipe 183 and the first pipe 171.

[0041] Specifically, the first connecting component 11 and the second connecting component 12 are both provided with a spring 16 and an extrusion plate 15. The extrusion plate 15 is respectively connected to the first connecting component 11 and the second connecting component 12 through the spring 16. When the first connecting component 11 and the second connecting component 12 are connected, the extrusion plate 15 fits tightly with the blade 2, thereby enhancing the connection stability of the first connecting component 11 and the second connecting component 12; the extrusion plate 15 is made of metal material and has good thermal conductivity. It can conduct heat to the heating component and accelerate the bonding speed of the blade 2 and the vortex generator 3, thereby improving work efficiency.

[0042] In this embodiment, the first connecting base plate 111 and the second connecting base plate 121 are first connected by matching the connecting piece 14 with the axial hole. After the multiple connecting structures 1 are connected, the two adjacent connecting structures 1 are connected. When connecting, the second pipe 183 is aligned with the second pipe 183 through the adapter ring 175 so that the second pipe 183 is connected to the first pipe 171, and then the adapter ring 175 is rotated so that the adapter ring 175 and the second pipe 183 are threadedly connected, thereby realizing the connection of the heating components in the two adjacent connecting structures 1, and water vapor is introduced into the water inlet pipe 17. The water vapor flows through the heating component and flows out from the water outlet pipe 18 to realize the heating effect of the heating component, so that the bonding strength between the vortex generator 3 and the blade 2 is improved. At the same time, the temperature sensor can monitor the temperature of the heating component in real time, thereby improving work efficiency.

[0043] Embodiment 2: This embodiment also provides a blade with a vortex generator, combined with Figure 7 As shown, the blade 2 with the vortex generator 3 includes the connection structure 1 as described in Example 1, and a plurality of connection structures 1 are provided. The plurality of connection structures 1 are arranged side by side on the blade 2, and the vortex generator 3 is bonded to the blade 2 through a heating component.

[0044] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A connection structure, characterized in that: The connection structure (1) is arranged corresponding to the vortex generator (3) on the blade (2), and comprises a first connection component (11) and a second connection component (12) for connecting the blade (2) and the vortex generator (3), a connecting piece (14) for connecting the first connection component (11) and the second connection component (12), and a heating component respectively arranged in the first connection component (11) and the second connection component (12), wherein the first connection component (11) has a receiving groove for accommodating the vortex generator (3), the first connection component (11), the second connection component (12) and the connecting piece connect the vortex generator (3) and the blade (2), and the vortex generator (3) is bonded to the blade (2) through the heating component.

2. A connection structure according to claim 1, characterized in that: The first connecting component (11) and the second connecting component (12) are both provided with a water inlet pipe (17) and a water outlet pipe (18), and the water inlet pipe (17) and the water outlet pipe (18) are both connected to the heating component.

3. A connection structure according to claim 2, characterized in that: The heating component comprises a heating pipe (13) having a water inlet (131) and a water outlet (132), wherein the water inlet (131) is connected to the water inlet pipe (17), and the water outlet (132) is connected to the water outlet pipe (18), and the heating pipe (13) is respectively arranged in the first connecting component (11) and the second connecting component (12).

4. A connection structure according to claim 3, characterized in that: The heating pipe (13) is spirally wound inside the first connecting component (11) and the second connecting component (12).

5. A connection structure according to claim 3, characterized in that: The water inlet pipe (17) comprises a first pipe (171) and an adapter ring (175) arranged at a port of the first pipe (171), and the adapter ring (175) is rotatably connected to the first pipe (171); The water outlet pipe (18) comprises a second pipe (183) arranged corresponding to the first pipe (171), and the first pipe (171) and the second pipe (183) are connected via an adapter ring (175).

6. A connection structure according to claim 5, characterized in that: A sealing structure is provided at the connection between the adapter ring (175) and the second pipe (183).

7. A connection structure according to claim 5, characterized in that: The port of the first pipe (171) is provided with a limiting groove (173), and the adapter ring (175) is provided with a limiting protrusion (172) corresponding to the limiting groove (173); the limiting protrusion (172) is arranged in the limiting groove (173) and can rotate along the limiting groove (173).

8. A connection structure according to claim 5, characterized in that: A groove (174) is formed at the end of the first pipe (171), and a guide portion (181) is provided on the second pipe (183) corresponding to the groove (174); when the first pipe (171) and the second pipe (183) are in a connected state, the guide portion (181) is sleeved in the groove (174).

9. A connection structure according to claim 1, characterized in that: The first connecting component (11) is provided with a first connecting base plate (111), and the second connecting component (12) is provided with a second connecting base plate (121) corresponding to the first connecting base plate (111), and the first connecting base plate (111) and the second connecting base plate (121) are locked and connected via a connecting piece (14).

10. A blade with a vortex generator, characterized in that: The invention comprises the connection structure described in any one of claims 1 to 9.

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