Turbulent flow device for wind power tower drum

Abstract

The utility model discloses a spoiler device for a wind power tower drum, which comprises a wind power tower drum body, spoiler strip end parts, a spoiler strip middle part and a sealing strip, the outer sides of the two ends of the wind power tower drum body are uniformly welded and connected with the spoiler strip end parts, one side of each spoiler strip end part is connected with the spoiler strip middle part, and the bottom end of the spoiler strip middle part is provided with the sealing strip. The inserting block is inserted into the clamping groove, the limiting block is extruded in the inserting process, the limiting block is retracted into the inserting block under the action of the guide groove and the guide block till the inserting block is attached to the clamping groove, and meanwhile the limiting block penetrates through the limiting groove under the action of the extrusion spring; by means of the operation, workers can splice and install the middles of the multiple sets of turbulent flow strips conveniently, the labor intensity of the workers is reduced, the installation efficiency of the turbulent flow strips is improved, and the time consumed for installation is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow spoiler devices, in particular to a flow spoiler device for a wind power tower. Background Art

[0002] When a uniform airflow flows through a wind turbine tower, alternating vortices will be generated on the back surface of the tower. Such alternating vortices will generate pulsating pressures that periodically change in the transverse direction on the tower body. If the frequency of the pulsating pressure is close to the natural frequency of the structure, it will cause the tower body to vibrate transversely and periodically. Therefore, a spoiler is needed to break up and disrupt the airflow flowing through the tower, thereby improving the safety of the tower when in use.

[0003] In a wind turbine tower spoiler with announcement number CN211474341U, it is composed of multiple spoiler units, and the cross-section of each spoiler unit is a closed three-sided solid structure or a three-sided thin-walled structure with an open end, wherein multiple spoiler units are connected in sequence to form a continuous spiral line, and are fixed to the outer wall of the tower through the spoiler unit located at the end, and the bottom surface of each spoiler unit is attached to the outer wall of the tower; or multiple spoiler units form a discontinuous spiral line arranged on the outer wall of the tower, that is, each spoiler unit is fixed on the outer wall of the tower, and its bottom surface is attached to the outer wall of the tower, and a spacing is maintained between two adjacent spoiler units. The spoiler of the utility model can adapt to the conformal requirements of different outer diameters of the entire tower, has a good spoiler effect, and a long service life;

[0004] However, the above-mentioned wind turbine tower spoiler still has the following defects when in use: when in use, the above-mentioned existing technology connects the two connecting plates to each other by bolts, thereby connecting the spoiler unit with the adjacent spoiler unit. However, in actual use, due to too many spoiler units, each of them needs to be connected to each other by bolts, which not only increases the labor intensity of the staff, but also reduces the efficiency of installation. Utility Model Content

[0005] The utility model aims to provide a spoiler device for a wind turbine tower, so as to solve the problem that the spoiler strips of the existing wind turbine tower spoiler device mentioned in the background art are not easy to be quickly spliced ​​and installed when in use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spoiler device for a wind turbine tower, comprising a wind turbine tower body, spoiler strip ends, a spoiler strip middle part, and a sealing strip, wherein the spoiler strip ends are evenly welded to the outer sides of both ends of the wind turbine tower body, the spoiler strip ends are connected to the spoiler strip middle part on one side of the spoiler strip ends, and a sealing strip is provided at the bottom end of the spoiler strip middle part;

[0007] An insert block is fixed on one side of the middle part of the spoiler strip, and a limiting mechanism is arranged inside the insert block. A card slot is opened on the other side of the middle part of the spoiler strip. Limiting slots are opened on the outer side of the middle part of the spoiler strip, and fixing mechanisms are evenly arranged on the top of the sealing strip.

[0008] When using a spoiler device for a wind turbine tower according to the technical solution, a limiting mechanism is provided to facilitate rapid splicing and installation of the middle part of the spoiler strip under the cooperation of the insert block, the card slot and the limiting slot, thereby improving the efficiency of its installation.

[0009] Preferably, the limiting mechanism includes an extrusion spring, and the extrusion spring is arranged inside the plug block, blocks are fixed on both sides of the extrusion spring, and guide blocks are fixed on both sides of the block, guide grooves are arranged on the outside of the guide blocks, and the guide grooves are opened inside the plug block, a limiting block is fixed on one side of the block, and one end of the limiting block extends to the outside of the plug block.

[0010] Preferably, the guide block slides inside the guide groove, and the stop block is slidably connected to the insert block via the guide block and the guide groove.

[0011] Preferably, the extrusion springs are provided in a plurality of groups, and the plurality of groups of extrusion springs are all in a stretched state inside the insert block.

[0012] Preferably, the fixing mechanism comprises a connecting groove, and the connecting groove is arranged inside the middle part of the spoiler strip, clamping blocks are fixed on both sides of the connecting groove, a movable block is arranged inside the connecting groove, and a fixed block is fixed to the bottom end of the movable block.

[0013] Preferably, the card blocks are provided in multiple groups, each group of the card blocks is provided with two card blocks, and the material of the multiple groups of card blocks is rubber material.

[0014] Preferably, the movable blocks are provided in a plurality of groups, the cross-sections of the plurality of groups of movable blocks are all circular, and the plurality of groups of movable blocks are distributed at equal intervals.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the spoiler device for the wind power tower not only improves the installation efficiency, but also improves the tightness of the connection;

[0016] 1. Insert the plug into the slot, squeeze the limit block during the insertion process, and the limit block is retracted into the plug under the action of the guide slot and the guide block until the plug and the slot fit together. At the same time, the limit block passes through the limit slot under the action of the extrusion spring. The above operation is convenient for the staff to splice and install the middle parts of multiple groups of spoiler strips, which not only reduces the labor intensity of the staff, but also improves the efficiency of the installation and saves the time consumed by the installation.

[0017] By squeezing the limit block, the stopper is driven to move horizontally, so that the limit block exits the limit range of the limit groove and enters the interior of the insert block. The above operation facilitates the release of the limit of the insert block, so that it is convenient for the staff to remove the middle part of a single spoiler strip. The above operation facilitates the rapid disassembly and replacement of the damaged middle part of the spoiler strip, thereby improving its practicality.

[0018] 2. Push the sealing strip to insert the fixed block into the connecting groove until one side of the movable block fits with the connecting groove, and limit the movable block under the action of the clamping block. The above operation facilitates fixing the sealing strip at the bottom end of the middle part of the spoiler strip. The above operation avoids the generation of a gap between the wind turbine tower body and the middle part of the spoiler strip, so that the middle part of the spoiler strip can be completely fitted on the outer wall of the wind turbine tower body, thereby improving the tightness of the connection between the middle part of the spoiler strip and the wind turbine tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the middle part of the spoiler strip of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the plug block of the utility model in a side view;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the middle part of the spoiler strip of the utility model in a side view;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing block of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. Wind turbine tower body; 2. End of spoiler strip; 3. Middle part of spoiler strip; 4. Sealing strip; 5. Insert block; 6. Slot; 7. Limiting slot; 8. Limiting mechanism; 801. Limiting block; 802. Stop block; 803. Guide slot; 804. Guide block; 805. Extrusion spring; 9. Fixing mechanism; 901. Block; 902. Fixing block; 903. Connecting slot; 904. Movable block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0028] Embodiment 1: In order to solve the problem that the prior art is inconvenient to quickly install the splicing, the following solution is disclosed. For details, please refer to Figure 1 , Figure 2 , Figure 3 As shown, it includes a wind turbine tower body 1, a spoiler strip end 2, a spoiler strip middle 3, and a sealing strip 4. The outer sides of both ends of the wind turbine tower body 1 are evenly welded with spoiler strip ends 2, one side of the spoiler strip end 2 is connected to the spoiler strip middle 3, and the bottom of the spoiler strip middle 3 is provided with a sealing strip 4, one side of the spoiler strip middle 3 is fixed with an insert block 5, and the inside of the insert block 5 is provided with a limiting mechanism 8, the limiting mechanism 8 includes an extrusion spring 805, and the extrusion spring 805 is arranged inside the insert block 5, and both sides of the extrusion spring 805 are fixed with stoppers 802, and Guide blocks 804 are fixed on both sides of the block 802, guide grooves 803 are provided on the outer sides of the guide blocks 804, and the guide grooves 803 are opened inside the plug block 5, a limit block 801 is fixed on one side of the block 802, and one end of the limit block 801 extends to the outside of the plug block 5, the guide block 804 slides inside the guide groove 803, the block 802 is slidably connected with the plug block 5 through the guide block 804 and the guide groove 803, and multiple groups of extrusion springs 805 are provided, and the multiple groups of extrusion springs 805 are in a stretched state inside the plug block 5.

[0029] In this embodiment, when in use, by pushing the middle part 3 of one spoiler strip closer to the middle part 3 of the other spoiler strip, the insert block 5 on the middle part 3 of the spoiler strip is inserted into the interior of the card slot 6. During the insertion process, the limit block 801 is squeezed, thereby driving the block 802 to move horizontally. While the block 802 moves horizontally, it drives the guide block 804 to slide inside the guide slot 803. By providing the guide block 804, on the one hand, the moving block 802 can be limited to avoid positional deviation during use, thereby affecting subsequent operations. On the other hand, the moving block 802 can also be guided The stopper 802 moves horizontally, thereby improving the stability of its movement, and the stopper 802 squeezes the squeezing spring 805 while making horizontal movement, so that the squeezing spring 805 is compressed by the squeezing force. Through the above operation, it is easy to put the limit block 801 into the interior of the plug block 5 until the plug block 5 and the card slot 6 are fitted with each other, so that the squeezing of the squeezing spring 805 disappears, thereby pushing the stopper 802 to move horizontally, and then pushing the limit block 801 to make synchronous horizontal movement until the limit block 801 passes through the limit slot 7. Through the above operation, it is easy to splice and install multiple groups of spoiler strip middle parts 3, thereby improving the efficiency of its installation.

[0030] Embodiment 2: In this embodiment, the difference from embodiment 1 is that the tightness can be improved during use. For details, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a card slot 6 is provided on the other side of the middle part 3 of the spoiler strip, and a limiting slot 7 is provided on the outer side of the middle part 3 of the spoiler strip. A fixing mechanism 9 is evenly arranged on the top of the sealing strip 4, and the fixing mechanism 9 includes a connecting groove 903, and the connecting groove 903 is arranged inside the middle part 3 of the spoiler strip. Card blocks 901 are fixed on both sides of the connecting groove 903, and a movable block 904 is arranged inside the connecting groove 903, and a fixed block 902 is fixed to the bottom end of the movable block 904. There are multiple groups of card blocks 901, each group of card blocks 901 is provided with two, and the material of the multiple groups of card blocks 901 is rubber material, there are multiple groups of movable blocks 904, the cross-sections of the multiple groups of movable blocks 904 are circular, and the multiple groups of movable blocks 904 are evenly spaced.

[0031] In this embodiment, when in use, the sealing strip 4 is pushed to drive the fixed block 902 to perform a synchronous upward movement, and the fixed block 902 drives the movable block 904 to perform a synchronous upward movement while performing the upward movement, until the movable block 904 is inserted into the interior of the connecting groove 903, and the sealing strip 4 is continuously pushed, so that the movable block 904 squeezes the card block 901. Due to the particularity of the materials of the card block 901 and the movable block 904, while squeezing the card block 901, the card block 901 and the movable block 904 are elastically deformed until one side of the movable block 904 and the connecting groove 903 are mutually fitted, so that the force of squeezing the card block 901 and the movable block 904 disappears, and then the card block 901 and the movable block 904 restore their elastic deformation. Through the above operation, it is convenient to fix the sealing strip 4 at the bottom end of the middle part 3 of the spoiler strip, thereby improving the tightness of the connection between the middle part 3 of the spoiler strip and the wind power tower body 1, thereby reducing the influence of the gap on the middle part 3 of the spoiler strip.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A spoiler device for a wind turbine tower, comprising a wind turbine tower body (1), spoiler strip ends (2), a spoiler strip middle portion (3), and a sealing strip (4), wherein the spoiler strip ends (2) are uniformly welded to the outer sides of both ends of the wind turbine tower body (1), the spoiler strip ends (2) are connected to the spoiler strip middle portion (3) on one side of the spoiler strip ends (2), and the sealing strip (4) is provided at the bottom end of the spoiler strip middle portion (3); Features: An insert block (5) is fixed on one side of the middle part (3) of the spoiler strip, and a limiting mechanism (8) is arranged inside the insert block (5); a clamping groove (6) is provided on the other side of the middle part (3) of the spoiler strip; limiting grooves (7) are provided on the outer side of the middle part (3) of the spoiler strip; and fixing mechanisms (9) are evenly arranged on the top of the sealing strip (4).

2. A wind turbine tower spoiler according to claim 1, characterized in that: The limiting mechanism (8) comprises a compression spring (805), and the compression spring (805) is arranged inside the plug block (5), and blocks (802) are fixed on both sides of the compression spring (805), and guide blocks (804) are fixed on both sides of the block (802), and guide grooves (803) are arranged on the outside of the guide blocks (804), and the guide grooves (803) are opened inside the plug block (5), and a limiting block (801) is fixed on one side of the block (802), and one end of the limiting block (801) extends to the outside of the plug block (5).

3. A spoiler for a wind turbine tower according to claim 2, characterized in that: The guide block (804) slides inside the guide groove (803), and the stopper (802) is slidably connected to the insert block (5) via the guide block (804) and the guide groove (803).

4. A wind turbine tower spoiler according to claim 2, characterized in that: The extrusion springs (805) are provided in multiple groups, and the multiple groups of extrusion springs (805) are all in a stretched state inside the insert block (5).

5. The wind turbine tower spoiler according to claim 1, characterized in that: The fixing mechanism (9) comprises a connecting groove (903), and the connecting groove (903) is arranged inside the middle part (3) of the spoiler strip, and clamping blocks (901) are fixed on both sides inside the connecting groove (903), and a movable block (904) is arranged inside the connecting groove (903), and a fixed block (902) is fixed to the bottom end of the movable block (904).

6. A flow-turbine device for a wind turbine tower according to claim 5, characterized in that: The card blocks (901) are provided in multiple groups, each group of the card blocks (901) is provided with two card blocks, and the material of the multiple groups of card blocks (901) is all rubber material.

7. The wind turbine tower spoiler according to claim 5, characterized in that: The movable blocks (904) are arranged in a plurality of groups, the cross-sections of the plurality of groups of movable blocks (904) are all circular, and the plurality of groups of movable blocks (904) are distributed at equal intervals.

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