Wind turbine generator blade sound early warning device

Abstract

The utility model belongs to the technical field of wind turbine generators, and particularly relates to sound early warning equipment for blades of a wind turbine generator. The problems that in the prior art, multi-position monitoring and early warning cannot be achieved, and later maintenance is inconvenient are solved. Comprising a barrel body, rotating blades are arranged at the top of the barrel body, a power generation assembly for generating power through rotation of the rotating blades is arranged at the top of the barrel body, a camera shooting mechanism for monitoring the rotating blades in real time is fixedly installed at the top of the barrel body, and a microphone for monitoring and recognizing rotating sound of the rotating blades is arranged on the side portion of the camera shooting mechanism. By arranging the camera shooting device and the microphone, faults such as cracks and unbalance of the rotating blade can be effectively recognized, intelligent recognition and timely early warning of the defects of the rotating blade can be achieved, real-time tracking feedback can be conducted on the condition characteristics of the rotating blade through a photographing and camera shooting method, the use condition of the rotating blade can be conveniently known, and the working efficiency of the rotating blade is improved. The workload of manual inspection is greatly reduced, and the reliability and safety of the equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine units, and particularly relates to a sound warning device for wind turbine blades. Background Art

[0002] In a wind turbine, the design of the blade directly affects the conversion efficiency of wind energy and its annual power generation, which is an important part of wind energy utilization. A sound warning device is required for the use of wind turbine blades; there are some disadvantages in the existing sound warning devices. First, the installation of the sound warning device is relatively troublesome. Second, the sound warning device is not easy to adjust and cannot be used flexibly.

[0003] The Chinese patent discloses a sound warning device for wind turbine blades (publication number: CN210890968U). In this patent, the damping rotating shaft can rotate inside the connecting block, thereby driving the rotation of the connecting column and the sound receiver, facilitating the position adjustment of the sound receiver. During installation, the external screw can pass through the installation hole and fix the installation plate at the specified position, facilitating the fixation of the installation plate and the fixing block. Through the action of the connecting spring, the limiting block can be compressed and inserted into the inside of the clamping block, and then the clamping block can be inserted into the clamping groove, and then the limiting block can be stuck inside the connecting groove, facilitating the fixation of the clamping block. It is relatively convenient, making the installation and disassembly of the device relatively easy and practical, and the use effect is better than the traditional method. However, when this patent is used, it can only monitor and give early warnings at a certain place, cannot achieve multiple-point monitoring and early warning, and cannot provide effective picture support for later maintenance. Content of the Utility Model

[0004] To solve the problems in the prior art that multi-point monitoring and early warning cannot be achieved and it is inconvenient for later maintenance, the utility model provides a sound early warning device for wind turbine blades. The working principle of this device is as follows: When this device is needed to give an early warning about the sound of wind turbine blades, first, the rotating blades of this device will rotate under the action of wind force. When rotating, the first rotating rod can drive the second tooth block to rotate, and the rotation of the second tooth block can drive the first tooth block to rotate. The rotation of the first tooth block can drive the rotor inside the generator to rotate through the connecting shaft, thus achieving the effect of power generation. At the same time, when the rotating blades rotate, the sound at the meshing part between the first tooth block and the second tooth block can be detected by the microphone, and then the rotation effect of the rotating blades can be detected. According to the different sounds generated when the rotating blades rotate, it is judged whether there is a problem with the rotation of the rotating blades. At the same time, when the rotating blades rotate, the appearance of the rotating blades can be photographed and recognized by the imaging device, and the photographed or imaged results are transmitted to the signal receiver through the signal, so as to realize the real-time observation of whether the surface of the rotating blades is damaged, improve the monitoring effect and intensity of the rotating blades, and realize the timely replacement of the rotating blades; When using this device to monitor and give an early warning about the rotating blades, through the set solar panel, solar energy can be collected and converted, and the solar energy is converted into electric energy and stored in the electricity storage box. When it is necessary to power on the imaging device and the microphone, the electric energy on the electricity storage box will be first transmitted to the inverter, and the inverter can convert the direct current into alternating current and transmit it to the imaging device and the microphone, thus providing power support for the use of the imaging device and the microphone, and through the conversion and utilization of solar energy, the effect of saving electricity can be achieved.

[0005] To achieve the above object, the specific technical solutions are as follows:

[0006] A sound early warning device for wind turbine blades, including a cylinder body. A rotating blade is arranged at the top of the cylinder body. A power generation component that generates electricity through the rotation of the rotating blade is arranged at the top of the cylinder body. An imaging mechanism for real-time monitoring of the rotating blade is fixedly installed at the top of the cylinder body. A microphone for monitoring and recognizing the rotating sound of the rotating blade is arranged at the side of the imaging mechanism.

[0007] Furthermore, the imaging mechanism includes an imaging device fixedly installed at the top of the cylinder body. A protective cover for protection is arranged on the periphery of the imaging device. A power supply component is arranged at the side of the imaging device.

[0008] Furthermore, the power supply component includes a solar panel arranged at the side of the cylinder body. A electricity storage box is arranged at the side of the solar panel. The solar panel and the electricity storage box are electrically connected through a first transmission line. The bottom of the solar panel and the electricity storage box are also fixedly connected through a first support foot and a second support foot. An inverter for converting current is fixedly connected to the side of the electricity storage box.

[0009] Furthermore, a first supporting plate is provided at the bottom of the electricity storage box, a supporting platform is provided at the bottom of the first supporting plate, the supporting platform and the first supporting plate are fixedly connected by a first fixing bolt and a first button block, and the supporting platform is fixedly installed on the periphery of the cylinder body.

[0010] Furthermore, the power generation assembly includes a generator, a second supporting plate is provided at the bottom of the generator, and the connection relationship between the second supporting plate and the supporting platform is the same as the connection relationship between the first supporting plate and the supporting platform.

[0011] Furthermore, a first tooth block is fixedly connected to the connecting shaft of the generator, a second tooth block is meshed with the top of the first tooth block, a first rotating rod is fixedly sleeved in the inner cavity of the second tooth block, one end of the first rotating rod is rotatably sleeved on the side of the inverter, a rotating block is fixedly sleeved at the other end of the first rotating rod, the rotating block and the rotating blade are fixedly connected by a synchronizing rod, one end of the microphone is close to the meshing portion of the first tooth block and the second tooth block, and the other end of the microphone is fixedly installed on the side of the inverter.

[0012] Compared with the prior art, the beneficial effects of the present utility model are at least as follows:

[0013] 1) By providing a camera device and a microphone, and using them in combination, not only can faults such as cracks and imbalances of the rotating blades be effectively identified, which helps to realize the intelligent identification and timely warning of the defects of the rotating blades, but also the condition characteristics of the rotating blades can be tracked and fed back in real time by means of photography and videography, so as to conveniently and quickly understand the usage situation of the rotating blades. This not only greatly reduces the workload of manual inspection, but also improves the reliability and safety of the equipment.

[0014] 2) By providing a microphone and a power supply assembly, the microphone can detect the sound at the meshing portion of the rotating blades, can capture the sound changes of the rotating blades in real time, and can timely detect abnormal rotation or abnormal conditions to ensure the smooth operation of the device. Under the action of the power supply assembly, solar energy is collected by the solar panel and converted into electric energy, which is stored in the electricity storage box to provide power support for the camera device and the microphone, realizing self-sufficiency of energy, reducing the dependence on external power, reducing the consumption of traditional energy, reducing carbon emissions, and playing a role in saving electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the connection relationship on the side of the rotating blade in the present utility model;

[0017] Figure 3is the enlarged view of the structure at position A of the present utility model in Figure 2 ;

[0018] Figure 4 is the enlarged view of the structure at position B of the present utility model in Figure 2 ;

[0019] As shown in the figure: cylinder body 1, rotating blade 2, rotating block 3, synchronous rod 4, camera device 5, microphone 6, protective cover 7, solar panel 8, first support foot 9, second support foot 10, first transmission line 11, electricity storage box 12, first support plate 13, support platform 14, first fixing bolt 15, first knob block 16, second support plate 17, generator 18, inverter 19, second tooth block 20, first tooth block 21, first rotating rod 22. Specific Embodiment

[0020] The following will describe the present utility model in detail in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present utility model.

[0021] Embodiment 1: As Figures 1-4 shown, the present utility model aims to provide a sound warning device for wind turbine blades to solve the problems of inability to achieve multi-point monitoring and warning and inconvenience for later maintenance in the prior art. According to the above functions, the whole device includes a cylinder body 1, a rotating blade 2 is arranged at the top of the cylinder body 1, a power generation assembly for driving the rotating blade 2 to rotate is arranged at the top of the cylinder body 1, the power generation assembly realizes rotation and power generation under the action of the rotating blade 2, a camera mechanism for real-time monitoring of the rotating blade 2 is fixedly installed at the top of the cylinder body 1, and a microphone 6 for detecting and identifying the rotating sound of the rotating blade 2 is arranged at the side of the camera mechanism;

[0022] Specifically, the microphone 6 can also collect the sound signal during the operation of the rotating blade 2, and can effectively identify faults such as cracks and imbalances of the rotating blade 2, change the system vibration mode, and thus excite the steady-state spectrum characteristics different from the normal ambient background noise. By analyzing the spectrum change of the sound signal, the spectrum characteristics reflecting the health state information of the rotating blade 2 can be extracted, which helps to realize the fault diagnosis of the rotating blade 2. For example, the time for the rotating blade 2 to rotate one week and the energy change within the frequency band range are all important bases for judging whether there are faults in the blade. Combining artificial intelligence algorithms and models, the intelligent identification and timely warning of the defects of the rotating blade 2 are realized, which not only greatly reduces the workload of manual inspection, but also improves the reliability and safety of the equipment.

[0023] Embodiment 2: As Figures 1-4As shown in the figure, the camera mechanism includes a camera device 5 fixedly installed on the top of the cylinder body 1. A protective cover 7 for protection is arranged around the camera device 5. The camera device 5 is installed obliquely, and the shooting angle thereof is perpendicular to the inclination angle of the rotating blade 2's rotating surface, so as to realize the shooting of the rotating blade 2, and further conduct real-time monitoring of the rotating blade 2. A power supply component is arranged on the side of the camera device 5.

[0024] As Figure 2 and Figure 3 shown in the figure, the power supply component includes a solar panel 8 arranged on the side of the cylinder body 1. A storage battery box 12 is arranged on the side of the solar panel 8. The solar panel 8 and the storage battery box 12 are electrically connected through a first transmission line 11. Through the first transmission line 11, the electric energy converted by the solar panel 8 can be transmitted to the storage battery box 12 for storage, which is convenient for the conversion and utilization of electric energy. The bottom of the solar panel 8 and the storage battery box 12 are also fixedly connected through a first support leg 9 and a second support leg 10. There is a length difference between the first support leg 9 and the second support leg 10, so that the solar panel 8 is installed obliquely on the side of the storage battery box 12, which can make the solar panel 8 adapt to the solar irradiation angle and irradiation range, and further improve the collection, conversion and utilization of electric energy. An inverter 19 for converting current is fixedly connected to the side of the storage battery box 12.

[0025] As Figure 3 shown in the figure, a first support plate 13 is arranged at the bottom of the storage battery box 12. The first support plate 13 plays a role in supporting and fixing the storage battery box 12 to prevent the storage battery box 12 from falling. A support platform 14 is arranged at the bottom of the first support plate 13. The first support plate 13 and the support platform 14 are fixedly connected through a support plate. The support platform 14 and the first support plate 13 are fixedly connected through a first fixing bolt 15 and a first button block 16. A thread groove is arranged on the periphery of the first fixing bolt 15, and the first fixing bolt 15 is threadedly rotatably sleeved with the first support plate 13. The first button block 16 is arranged at the bottom end of the support platform 14 to realize the limit fixation of the first fixing bolt 15. The support platform 14 is fixedly installed on the periphery of the cylinder body 1.

[0026] As Figure 2 and Figure 4 shown in the figure, the power generation component includes a generator 18. A second support plate 17 is arranged at the bottom of the generator 18. The bottom periphery of the generator 18 is in contact with and fixed to the top of the second support plate 17. The second support plate 17 plays a role in supporting and fixing the generator 18. The connection relationship between the second support plate 17 and the support platform 14 is the same as the connection relationship between the first support plate 13 and the support platform 14. The connection relationship between the second support plate 17 and the support platform 14 is also fixedly connected through a first fixing bolt 15 and a first button block 16, so as to realize the installation and fixation of the second support plate 17, and further realize the installation and fixation of the generator 18.

[0027] As shown Figure 4 in the figure, a first toothed block 21 is fixedly connected to the connecting shaft of the generator 18. A second toothed block 20 meshes with the top of the first toothed block 21. A first rotating rod 22 is fixedly sleeved inside the cavity of the second toothed block 20. One end of the first rotating rod 22 is rotatably sleeved on the side of the inverter 19. The inverter 19 can convert direct current into alternating current and transmit it to the imaging device 5 and the microphone 6, thereby providing power support for the use of the imaging device 5 and the microphone 6. The other end of the first rotating rod 22 is fixedly sleeved with a rotating block 3. The rotating block 3 is fixedly connected to the rotating blade 2 through a synchronizing rod 4. One end of the microphone 6 is close to the meshing part of the first toothed block 21 and the second toothed block 20. The other end of the microphone 6 is fixedly installed on the side of the inverter 19. The microphone 6 performs sound recognition on the meshing part of the first toothed block 21 and the second toothed block 20, thereby judging whether there is a problem with the rotation of the meshing part of the first toothed block 21 and the second toothed block 20, and further judging the rotation effect of the rotating blade 2.

[0028] Working principle of this device: When this device is needed to give an early warning about the sound of the wind turbine blade, first, under the action of wind force, the rotating blade 2 of this device will rotate. When rotating, the second toothed block 20 can be driven to rotate through the first rotating rod 22. The rotation of the second toothed block 20 can drive the first toothed block 21 to rotate. The rotation of the first toothed block 21 can drive the rotation of the rotor inside the generator 18 through the connecting shaft, thereby achieving the effect of power generation. At the same time, when the rotating blade 2 rotates, the microphone 6 can perform sound detection on the meshing part between the first toothed block 21 and the second toothed block 20, and further detect the rotation effect of the rotating blade 2. According to the different sounds generated when the rotating blade 2 rotates, it is judged whether there is a problem with the rotation of the rotating blade 2. At the same time, when the rotating blade 2 rotates, the imaging device 5 can perform shooting and recognition on the outer surface of the rotating blade 2, and transmit the shooting or imaging result to the signal receiver through a signal, thereby realizing real-time observation of whether the surface of the rotating blade 2 is damaged, improving the monitoring effect and monitoring intensity of the rotating blade 2, and realizing the timely replacement of the rotating blade 2;

[0029] When using this device to monitor and give an early warning about the rotating blade 2, through the provided solar panel 8, solar energy can be collected and converted, and the solar energy is converted into electrical energy and stored in the electricity storage box 12. When it is necessary to power the imaging device 5 and the microphone 6, the electrical energy on the electricity storage box 12 will first be transmitted to the inverter 19. The inverter 19 can convert direct current into alternating current and transmit it to the imaging device 5 and the microphone 6, thereby providing power support for the use of the imaging device 5 and the microphone 6. Moreover, by converting and using solar energy, the effect of saving electricity can be achieved.

[0030] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind turbine blade sound warning device, comprising a cylinder, characterized in that: The top of the cylinder is provided with rotating blades, and the top of the cylinder is a power generation component that generates electricity by rotating the rotating blades. The top of the cylinder is fixedly installed with a camera mechanism for real-time monitoring of the rotating blades, and the side of the camera mechanism is provided with a microphone for monitoring and identifying the rotation sound of the rotating blades.

2. A wind turbine blade sound warning device according to claim 1, characterized in that: The camera mechanism comprises a camera device fixedly mounted on the top of a cylinder, a protective cover for protection is arranged on the periphery of the camera device, and a power supply assembly is arranged on the side of the camera device.

3. A wind turbine blade sound warning device according to claim 2, characterized in that: The power supply assembly includes a solar panel arranged on the side of the cylinder, and a power storage box is arranged on the side of the solar panel. The solar panel and the power storage box are electrically connected through a first transmission line, and the bottom of the solar panel and the power storage box are also fixedly connected through a first supporting foot and a second supporting foot. The side of the power storage box is fixedly connected to an inverter for converting current.

4. A wind turbine blade sound warning device according to claim 3, characterized in that: A first supporting plate is arranged at the bottom of the electricity storage box, a supporting platform is arranged at the bottom of the first supporting plate, the supporting platform and the first supporting plate are fixedly connected via a first fixing bolt and a first button block, and the supporting platform is fixedly mounted on the periphery of the cylinder.

5. The wind turbine blade sound warning device according to claim 1, characterized in that: The power generation assembly includes a generator, and a second supporting plate is arranged at the bottom of the generator. The connection relationship between the second supporting plate and the support platform is the same as the connection relationship between the first supporting plate and the support platform.

6. A wind turbine blade sound warning device according to claim 5, characterized in that: The connecting shaft of the generator is fixedly connected with a first tooth block, the top of the first tooth block is meshed with a second tooth block, the inner cavity of the second tooth block is fixedly sleeved with a first rotating rod, one end of the first rotating rod is rotatably sleeved on the side of the inverter, the other end of the first rotating rod is fixedly sleeved with a rotating block, the rotating block and the rotating blade are fixedly connected through a synchronization rod, one end of the microphone is close to the meshing point of the first tooth block and the second tooth block, and the other end of the microphone is fixedly installed on the side of the inverter.

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