Noise reduction device for wind power generation

Abstract

The present invention relates to the technical field of wind power generation, and discloses a noise reduction device for wind power generation, including a shell, one side of the shell is connected with an air inlet pipe, the other side of the shell is fixedly connected with a mounting frame, a connecting shell is arranged inside the mounting frame, both sides of the connecting shell are threadedly connected with bolts, one side of the connecting shell is fixedly connected with a protective plate, a wind turbine is arranged inside the shell, and a disassembly assembly is arranged below the wind turbine. The present invention realizes convenient disassembly and separation between the wind turbine and the noise reduction device through the arrangement of the disassembly assembly assembly, so that when the wind turbine or the noise reduction device is damaged, it can be quickly repaired, thereby improving the maintenance efficiency, and the introduction of the sound absorbing assembly further enhances the performance of the noise reduction device, which is convenient for reducing the noise generated by the vibration and collision of the contact surface between the parts and the wind turbine when the wind turbine is running, which helps to reduce the noise pollution to the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a noise reduction device for wind power generation. Background Art

[0002] Wind power generation is an engineering technology that converts wind energy into electrical energy. It uses wind power to drive the windmill blades to rotate, and then increases the rotation speed through a speed increaser to prompt the generator to generate electricity. When the wind blows towards the blades of the wind turbine, the blades rotate due to the wind force. This rotational mechanical energy is transmitted to the generator through the transmission system. The generator converts the mechanical energy into electrical energy through the principle of electromagnetic induction, and finally outputs it to the power grid for people to use. It has the advantages of environmental protection, renewable, economical, and widely distributed.

[0003] After searching, a Chinese patent with announcement number CN215860622U discloses a noise reduction device for wind power generation. In view of the fact that the cooling components will generate large noise during operation, causing noise pollution and affecting the surrounding environment, the motor and fan blades can be buffered during operation to reduce their vertical and horizontal shaking, thereby reducing the noise generated by vibration during operation, and the noise generated by the sound-absorbing panel can be further absorbed to avoid noise pollution. The motor and fan blades can also be protected to reduce dust from entering the U-shaped shell to avoid accidental injury to operators, thereby ensuring its safety in use. The protective panel can be easily removed for cleaning, which is convenient for cleaning and repairing the motor and fan blades.

[0004] The above-mentioned noise reduction device is convenient for reducing the noise generated during the operation of the motor and the fan blades. In the prior art, in order to ensure the stability of the wind turbine during use, the wind turbine is usually welded in the noise reduction device. When the wind turbine and the noise reduction device are in use at the same time, both of them are prone to damage, so it is necessary to separate the wind turbine and the noise reduction device. The welding connection method is usually not convenient for separating the wind turbine from the noise reduction device, so it is not convenient to check and repair the wind turbine and the noise reduction device in time, which shortens the service life of the wind turbine and the noise reduction device. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a noise reduction device for wind power generation.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a noise reduction device for wind power generation, comprising a shell, one side of the shell is connected with an air inlet pipe, the other side of the shell is fixedly connected with a mounting frame, a connecting shell is arranged inside the mounting frame, both sides of the connecting shell are threadedly connected with bolts, one side of the connecting shell is fixedly connected with a protective plate, a wind turbine is arranged inside the shell, and a disassembly and assembly component is arranged below the wind turbine.

[0007] As a further description of the above technical solution:

[0008] The disassembly and assembly component includes a U-shaped plate, which is arranged below the wind turbine. First studs are threadedly connected to both sides of the U-shaped plate, one end of the first stud is rotatably connected to a side plate, both sides of the upper surface of the U-shaped plate are fixedly connected to limit blocks, the inner part of the limit block is slidably connected to a limit rod, one end of the limit rod is fixedly connected to one side of the side plate, and a top plate is arranged above the U-shaped plate.

[0009] As a further description of the above technical solution:

[0010] A knob is rotatably connected to the upper surface of the shell, a second stud is fixedly connected to the lower surface of the knob, the external thread of the second stud is connected to a threaded tube, one end of the threaded tube is fixedly connected to the upper surface of the top plate, a limiting column is fixedly connected to the top of the inner wall of the shell, a connecting ring is slidably connected to the outside of the limiting column, and one side of the connecting ring is fixedly connected to one side of the threaded tube.

[0011] As a further description of the above technical solution:

[0012] A sound absorbing component is arranged at the bottom of the inner wall of the shell. The sound absorbing component comprises a mounting block. The mounting block is fixedly connected to the bottom of the inner wall of the shell. Two mounting grooves are arranged on the upper surface of the mounting block.

[0013] As a further description of the above technical solution:

[0014] A first sound absorbing frame is fixedly connected inside the installation groove, a second sound absorbing frame is slidably connected inside the installation groove, and a support column is fixedly connected to an inner wall of the second sound absorbing frame.

[0015] As a further description of the above technical solution:

[0016] A columnar groove is provided on the lower surface of the support column, a protective tube is fixedly connected to the bottom of the inner wall of the installation groove, one end of the protective tube and the lower surface of the columnar groove are fixedly connected to a limiting ring, the limiting ring, the first sound absorbing frame and the second sound absorbing frame are all made of mineral wool, and a spring is fixedly connected to the inside of the columnar groove.

[0017] As a further description of the above technical solution:

[0018] A U-shaped sound-absorbing pad is arranged on the inner wall of the U-shaped plate, a first sound-absorbing pad is arranged on one side of the side plate, and a second sound-absorbing pad is arranged on the lower surface of the top plate. The U-shaped sound-absorbing pad, the first sound-absorbing pad and the second sound-absorbing pad are all made of sound-absorbing sponge material.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention provides a noise reduction device for wind power generation with a disassembly and assembly component, which facilitates the convenient disassembly of the wind generator from the noise reduction device when the wind generator and the noise reduction device are damaged, so as to separate them and perform maintenance, thereby helping to improve the maintenance efficiency of the wind generator and reduce the time of wind power generation equipment failure and downtime caused by improper maintenance.

[0021] 2. The present invention increases the noise reduction device for wind power generation by setting a sound-absorbing component, which is convenient for reducing the noise caused by vibration and collision between the parts in the disassembly and assembly components and the contact surface between the wind turbine when the wind turbine is running, and reduces the noise generated by the mutual collision of the noise reduction parts in the device, thereby improving the noise reduction effect and reducing the pollution of noise to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the installation frame structure proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the connecting ring structure proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the threaded pipe proposed by the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the U-shaped plate structure proposed by the present invention.

[0028] Legend:

[0029] 1. Outer shell; 2. Air inlet pipe; 3. Mounting frame; 4. Connecting shell; 5. Bolt; 6. Protective plate; 7. Wind turbine; 8. U-shaped plate; 9. First stud; 10. Side plate; 11. Limit block; 12. Limit rod; 13. Knob; 14. Second stud; 15. Threaded pipe; 16. Top plate; 17. Limit column; 18. Connecting ring; 19. Mounting block; 20. Mounting groove; 21. First sound-absorbing frame; 22. Second sound-absorbing frame; 23. Support column; 24. Columnar groove; 25. Spring; 26. Protective pipe; 27. Limit ring; 28. U-shaped sound-absorbing pad; 29. ​​First sound-absorbing pad; 30. Second sound-absorbing pad. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] As attached Figure 1-6 As shown, an embodiment of the present invention is: a noise reduction device for wind power generation, comprising an outer shell 1, one side of the outer shell 1 is connected with an air inlet pipe 2, the other side of the outer shell 1 is fixedly connected with a mounting frame 3, a connecting shell 4 is arranged inside the mounting frame 3, both sides of the connecting shell 4 are threadedly connected with bolts 5, one side of the connecting shell 4 is fixedly connected with a protective plate 6, a wind turbine 7 is arranged inside the outer shell 1, and a disassembly assembly is arranged below the wind turbine 7. The separation of the outer shell 1 and the connecting shell 4 facilitates the disassembly of the wind turbine 7, and the mounting frame 3 facilitates the installation of the connecting shell 4.

[0032] As attached Figure 5 As shown, the disassembly and assembly components include a U-shaped plate 8, which is arranged below the wind turbine 7. Both sides of the U-shaped plate 8 are threadedly connected with a first stud 9, one end of the first stud 9 is rotatably connected with a side plate 10, both sides of the upper surface of the U-shaped plate 8 are fixedly connected with a limit block 11, the inner sliding connection of the limit block 11 is connected with a limit rod 12, one end of the limit rod 12 is fixedly connected to one side of the side plate 10, the U-shaped plate 8 is convenient for placing the wind turbine 7, the first stud 9 is convenient for pushing the side plate 10 to the side of the wind turbine 7, and the limit rod 12 slides inside the limit block 11 to limit the side plate 10.

[0033] As attached Figure 4As shown, a top plate 16 is arranged above the U-shaped plate 8, a knob 13 is rotatably connected to the upper surface of the outer shell 1, a second stud 14 is fixedly connected to the lower surface of the knob 13, the external thread of the second stud 14 is connected to a threaded tube 15, one end of the threaded tube 15 is fixedly connected to the upper surface of the top plate 16, a limiting column 17 is fixedly connected to the top of the inner wall of the outer shell 1, the top plate 16 is convenient for limiting the top of the wind turbine 7, the second stud 14 is convenient for pushing the threaded tube 15 to move, so that the threaded tube 15 drives the top plate 16 to move.

[0034] As attached Figure 3 As shown, the outer part of the limiting column 17 is slidably connected with a connecting ring 18, one side of the connecting ring 18 is fixedly connected to one side of the threaded tube 15, and a sound absorbing component is arranged at the bottom of the inner wall of the outer shell 1. The sound absorbing component includes a mounting block 19, and the mounting block 19 is fixedly connected to the bottom of the inner wall of the outer shell 1. The connecting ring 18 limits the threaded tube 15.

[0035] As attached Figure 6 As shown, two mounting grooves 20 are provided on the upper surface of the mounting block 19, and a first sound absorbing frame 21 is fixedly connected inside the mounting groove 20, and a second sound absorbing frame 22 is slidably connected inside the mounting groove 20, and a support column 23 is fixedly connected to the inner wall of the second sound absorbing frame 22, and a columnar groove 24 is provided on the lower surface of the support column 23, and a protective tube 26 is fixedly connected to the bottom of the inner wall of the mounting groove 20, and one end of the protective tube 26 and the lower surface of the columnar groove 24 are fixedly connected to a limiting ring 27, and the limiting ring 27, the first sound absorbing frame 21 and the second sound absorbing frame 22 are all made of mineral wool, and a spring 25 is fixedly connected inside the columnar groove 24, and the mounting groove 20 facilitates the installation of the support column 23, and the columnar groove 24 and the protective tube 26 facilitate the protection of the spring 25, and the first sound absorbing frame 21 and the second sound absorbing frame 22 facilitate the prevention of the support column 23 from moving out of the mounting groove 20, and the limiting ring 27 facilitates the prevention of the protective tube 26 from moving out of the columnar groove 24.

[0036] As attached Figure 4 As shown, a U-shaped sound-absorbing pad 28 is provided on the inner wall of the U-shaped plate 8, a first sound-absorbing pad 29 is provided on one side of the side plate 10, and a second sound-absorbing pad 30 is provided on the lower surface of the top plate 16. The U-shaped sound-absorbing pad 28, the first sound-absorbing pad 29 and the second sound-absorbing pad 30 are all made of sound-absorbing sponge material, which is convenient for sound absorption of the contact surface between the wind turbine 7 and the disassembled component parts.

[0037] Working principle: when disassembling the wind turbine 7, firstly screw the bolts 5 on both sides so that the bolts 5 are out of contact with the connecting shell 4, so that the connecting shell 4 can be taken out from the inside of the mounting frame 3, thereby separating the connecting shell 4 from the outer shell 1, and then screw the knob 13 so that the knob 13 drives the second stud 14 to rotate, and under the action of the connecting ring 18 sliding on the limiting column 17, the threaded tube 15 drives the top plate 16 to move upward, so as to release the upper limit of the wind turbine 7, and then screw the first studs 9 on both sides of the U-shaped plate 8, so that the first studs 9 can drive the side plates 10 to be out of contact with the two sides of the wind turbine 7 under the limiting action of the limiting rod 12 sliding on the limiting block 11, thereby facilitating the release of the limiting action on both sides of the wind turbine 7, and facilitating the removal of the wind turbine 7 from the inside of the outer shell 1, so as to facilitate maintenance;

[0038] When the wind turbine 7 generates noise due to vibration during operation, the first sound absorbing pads 29 on both sides of the second sound absorbing pad 30 are used to absorb the vibration of the contact surface between the top plate 16, the side plate 10 and the wind turbine 7, and the U-shaped sound absorbing pad 28 is used to absorb the sound of the bottom contact surface of the wind turbine 7. When the vibration is transmitted to the two support columns 23, the support columns 23 will drive the second sound absorbing frame 22 to slide inside the mounting groove 20, so that the first sound absorbing frame 21 can absorb the sound of the contact surface with the support column 23, while the second sound absorbing frame 22 can absorb the sound of the contact surface with the mounting groove 20. When the support column 23 is vibrated and pressed down, it will squeeze the spring 25, so that the elastic force of the spring 25 can be used to absorb the vibration force, which helps to improve the sound absorption effect and thus improve the noise reduction quality.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reduction device for wind power generation, comprising a housing (1), one side of the housing (1) is connected through an air inlet pipe (2), the other side of the housing (1) is fixedly connected to a mounting frame (3), a connecting shell (4) is arranged inside the mounting frame (3), both sides of the connecting shell (4) are threadedly connected to bolts (5), one side of the connecting shell (4) is fixedly connected to a protective plate (6), a wind turbine (7) is arranged inside the housing (1), and the characteristics are: A disassembly and assembly component is arranged below the wind turbine (7).

2. The noise reduction device for wind power generation according to claim 1, characterized in that: The disassembly assembly component comprises a U-shaped plate (8), wherein the U-shaped plate (8) is arranged below the wind turbine (7), and first studs (9) are threadedly connected to both sides of the U-shaped plate (8), and one end of the first stud (9) is rotatably connected to a side plate (10), and both sides of the upper surface of the U-shaped plate (8) are fixedly connected to limit blocks (11), and the inside of the limit blocks (11) is slidably connected to a limit rod (12), and one end of the limit rod (12) is fixedly connected to one side of the side plate (10), and a top plate (16) is arranged above the U-shaped plate (8).

3. The noise reduction device for wind power generation according to claim 1, characterized in that: The upper surface of the housing (1) is rotatably connected to a knob (13), the lower surface of the knob (13) is fixedly connected to a second stud (14), the outer surface of the second stud (14) is threadedly connected to a threaded tube (15), one end of the threaded tube (15) is fixedly connected to the upper surface of a top plate (16), the top of the inner wall of the housing (1) is fixedly connected to a limiting column (17), the outer portion of the limiting column (17) is slidably connected to a connecting ring (18), one side of the connecting ring (18) is fixedly connected to one side of the threaded tube (15).

4. The noise reduction device for wind power generation according to claim 1, characterized in that: A sound absorbing component is provided at the bottom of the inner wall of the outer shell (1), and the sound absorbing component comprises a mounting block (19). The mounting block (19) is fixedly connected to the bottom of the inner wall of the outer shell (1), and two mounting grooves (20) are provided on the upper surface of the mounting block (19).

5. The noise reduction device for wind power generation according to claim 4, characterized in that: A first sound absorbing frame (21) is fixedly connected inside the installation groove (20), a second sound absorbing frame (22) is slidably connected inside the installation groove (20), and a support column (23) is fixedly connected to the inner wall of the second sound absorbing frame (22).

6. The noise reduction device for wind power generation according to claim 5, characterized in that: A columnar groove (24) is provided on the lower surface of the support column (23); a protective tube (26) is fixedly connected to the bottom of the inner wall of the installation groove (20); one end of the protective tube (26) and the lower surface of the columnar groove (24) are fixedly connected to a limiting ring (27); the limiting ring (27), the first sound absorbing frame (21) and the second sound absorbing frame (22) are all made of mineral wool; and a spring (25) is fixedly connected inside the columnar groove (24).

7. The noise reduction device for wind power generation according to claim 2, characterized in that: The inner wall of the U-shaped plate (8) is provided with a U-shaped sound absorbing pad (28), one side of the side plate (10) is provided with a first sound absorbing pad (29), and the lower surface of the top plate (16) is provided with a second sound absorbing pad (30), and the U-shaped sound absorbing pad (28), the first sound absorbing pad (29) and the second sound absorbing pad (30) are all made of sound absorbing sponge material.

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