Wind driven generator blade operation sound acquisition device

Abstract

The utility model discloses a wind driven generator blade operation sound collecting device which comprises a tower column, a generator set and three wind driven generator blades, a sound collecting module shell is arranged at the bottom of the generator set, a connecting block is fixedly connected to the top end of the sound collecting module shell, a U-shaped supporting top seat is welded to the bottom of the generator set, and the U-shaped supporting top seat is fixedly connected with the tower column. A plurality of sound sensors are installed on one side of the sound collection module shell, a limiting plate is rotationally connected to one side of the U-shaped supporting top seat, and the limiting plate is slidably connected to one side of the connecting block; through cooperative use of a connecting block, a U-shaped supporting top seat and a limiting plate, the sound acquisition module shell can be quickly mounted and dismounted, so that overhaul and maintenance work is facilitated, a bolt mode is not needed, detection equipment is prevented from being gradually loosened, the accuracy and stability of sound acquisition are ensured, the acquisition device is prevented from falling off, and the detection efficiency is improved. And equipment damage and potential safety hazards are caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially relates to a wind driven generator blade operation sound collection device. BACKGROUND

[0002] With the rapid development of wind power generation technology, the operation stability and reliability of wind turbine generators are increasingly improved. As a key component of wind driven generators, the running state of the blade directly affects the power generation efficiency and safety of the entire unit. Traditional monitoring methods often focus on the measurement of vibration, temperature and other physical parameters, while the blade running sound contains rich state information such as aerodynamic characteristics and structural health status, which is of great significance for comprehensive evaluation of blade state.

[0003] However, the existing blade sound collection device has many problems. The traditional sound collection device generally adopts the bolt installation method to fix the collection device on the blade or other parts of the wind turbine generator. In the actual operation process, this installation method is easily affected by the equipment operation vibration, environmental wind and temperature and other factors, resulting in the gradual loosening of the collection device. Once the collection device is loose, it will not only affect the accuracy and stability of sound collection, but also may cause the collection device to fall off, causing equipment damage and safety hazards. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art.

[0005] Therefore, the utility model aims at providing a wind driven generator blade operation sound collection device, which can solve the problem of loosening of the sound collection element during use and affecting sound detection.

[0006] To achieve the above purpose, the utility model provides a wind driven generator blade operation sound collection device, which comprises a tower column, a generator set and three wind power generation blades, the bottom of the generator set is provided with a sound collection module shell, the top end of the sound collection module shell is fixedly connected with a connecting block, and the bottom of the generator set is welded with a U-shaped support top seat, wherein a plurality of sound sensors are installed on one side of the sound collection module shell, the sound sensors correspond to the positions of the wind power generation blades, positioning clamping grooves are formed on both sides of the connecting block, a connecting clamping groove is formed in the bottom end of the U-shaped support top seat, the connecting block is clamped and connected to the inner wall of the U-shaped support top seat, a limiting plate is rotatably connected to one side of the U-shaped support top seat, and the limiting plate is slidably connected to one side of the connecting block.

[0007] The utility model discloses a template, through the sound acquisition module shell and the sound sensor to the wind power generation blade operating sound gather, and analyze and handle, can effectively promote the operating stability and reliability of wind turbine generator unit, reduce the operation and maintenance cost, improve the power generation efficiency, through the cooperation of connecting block, U type support top seat and spacing board, make the sound acquisition module shell can realize quick installation and disassembly to convenient overhaul and maintenance work, need not use the mode of bolt to prevent the detection equipment gradually loosens, guarantee the accuracy and stability of sound acquisition, and avoid the collection device to fall off, cause equipment damage and security hidden danger problem.

[0008] In addition, the template according to the utility model can also have the following additional technical features:

[0009] Specifically, the sound acquisition module shell has signal conditioning circuit, data acquisition and processing module and communication module, and the plurality of sound sensors are electrically connected with the signal conditioning circuit.

[0010] Specifically, the spacing board inner wall is slidably connected with a spacing plugboard, the U-shaped support top seat is provided with two limiting lugs on one side, and the spacing plugboard is inserted between the two limiting lugs.

[0011] Specifically, the spacing board inner wall is provided with a reset spring, the other end of the reset spring is installed on the top end of the spacing plugboard, the spacing plugboard is provided with an inner sliding groove, and the spacing board inner wall is slidably connected with two limiting rods.

[0012] Specifically, the spacing board is provided with a strip hole on one side, the spacing plugboard is rotatably connected with a rotating rod on one side, and the rotating rod is slidably connected with the inner wall of the strip hole.

[0013] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. ACCURACY

[0014] The above and / or additional aspects and advantages of the utility model will become obvious and easy to understand from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 It is the three-dimensional structure schematic of the utility model Figure 1 ;

[0016] Figure 2 It is the structure schematic of the utility model Figure 1 Partially enlarged structure schematic view of A place;

[0017] Figure 3 It is the three-dimensional structure schematic of the utility modelFigure 2 ;

[0018] Figure 4 For the utility model Figure 3 The structure diagram of the local amplification of B place is shown in the figure.

[0019] Figure 5 For the utility model, the sectional structure diagram of the U-shaped support top seat and other components is shown in the figure.

[0020] Figure 6 For the utility model, the use flow chart is shown in the figure.

[0021] As shown in the figure:

[0022] 1, tower column; 11, generator set; 12, wind power generation blade; 2, sound collection module shell; 21, sound sensor; 22, signal conditioning circuit; 23, data acquisition and processing module; 24, communication module; 3, connecting block; 31, positioning clamping groove; 4, U-shaped support top seat; 41, connecting clamping groove; 42, limiting plate; 421, reset spring; 422, limiting rod; 43, limiting plugboard; 431, inner sliding groove; 432, rotating rod; 44, limiting protrusion; 45, strip-shaped hole. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0024] A wind turbine blade running sound collection device of the utility model embodiment is described below in combination with the drawings.

[0025] As Figures 1-6 shown, the wind turbine blade running sound collection device of the utility model embodiment can include a tower column 1, a generator set 11 and three wind power generation blades 12, the bottom of the generator set 11 is provided with a sound collection module shell 2, the top end of the sound collection module shell 2 is fixedly connected with a connecting block 3, and the bottom of the generator set 11 is welded with a U-shaped support top seat 4.

[0026] Among them, a plurality of sound sensors 21 are installed on one side of the sound collection module shell 2, and the sound sensors 21 correspond to the positions of the wind power generation blades 12.

[0027] It should be noted that the plurality of sound sensors 21 described in this embodiment are arranged in a matrix.

[0028] The connecting block 3 is provided with a positioning clamping groove 31 on both sides, and the U-shaped support top 4 is provided with a connecting clamping groove 41 at the bottom end.

[0029] It should be noted that the two positioning clamping grooves 31 and the connecting clamping groove 41 described in this embodiment are horizontally corresponding in position.

[0030] The U-shaped support top 4 is rotatably connected to a limiting plate 42 on one side, and the limiting plate 42 is slidably connected to one side of the connecting block 3.

[0031] It should be noted that the limiting plate 42 described in this embodiment is provided with a damping coating close to one side of the U-shaped support top 4.

[0032] Specifically, the tower column 1 supports various components of the device, the generator set 11 receives the driving of the environment wind through the wind power blade 12 to realize the power generation work, the generator set 11 supports the U-shaped support top 4, and the U-shaped support top 4 is fixedly connected with the generator set 11 by welding, so that the U-shaped support top 4 does not need to be removed from the generator set 11, the sound collection module shell 2 is connected with the U-shaped support top 4 through the connecting block 3, so that the sound collection module shell 2 can be connected with the generator set 11, and the connecting block 3 and the U-shaped support top 4 are portable and can be quickly disassembled, so that the sound collection module shell 2 can be quickly installed and disassembled, thereby facilitating the maintenance and maintenance work, the connecting block 3 is provided with two positioning clamping grooves 31 for accommodating the bottom of the U-shaped support top 4, and the U-shaped support top 4 is provided with a connecting clamping groove 41 for accommodating the part between the two positioning clamping grooves 31, so that the connecting block 3 can be stably clamped in the inner side of the U-shaped support top 4, the connecting block 3 will not shake in the vertical direction, the distance between the limiting plate 42 on one side of the U-shaped support top 4 and the U-shaped support top 4 is fixed, so that the limiting plate 42 can only rotate and cannot be transversely moved or shaken, when the limiting plate 42 rotates downward, it can shield and limit the rear of the connecting block 3 clamped in the U-shaped support top 4, so that the connecting block 3 can be locked in the inside of the U-shaped support top 4, so that the sound collection module shell 2 can be stably used without using the bolt, thereby preventing the detection equipment from gradually loosening, ensuring the accuracy and stability of sound collection, avoiding the falling of the collection device, causing equipment damage and safety hidden trouble, and the sound collection module shell 2 is provided with a plurality of sound sensors 21 facing the wind power blade 12 and collecting the sound generated when the wind power blade 12 operates, the sound sensors 21 are arranged near the wind power blade 12, can capture the sound signal of the wind power blade 12 when it operates with high sensitivity, through real-time, accurate and comprehensive collection of blade operation sound signals, and in-depth analysis and processing, the operation stability and reliability of the wind turbine generator set can be effectively improved, the operation and maintenance cost can be reduced, and the power generation efficiency can be improved.

[0033] In an embodiment of the utility model, as shown in Figures 1-6 The sound acquisition module shell 2 has a signal conditioning circuit 22, a data acquisition and processing module 23 and a communication module 24, and the plurality of sound sensors 21 are electrically connected to the signal conditioning circuit 22.

[0034] Specifically, the signal conditioning circuit 22 amplifies, filters and pre-processes the sound signals collected by the sound sensors 21 to improve the signal-to-noise ratio and reliability of the signals, the data acquisition and processing module 23 converts the pre-processed sound signals from the signal conditioning circuit 22 into digital signals and performs feature extraction and preliminary analysis, and the communication module 24 uploads the sound data processed by the data acquisition and processing module 23 to the remote monitoring center in real time for further analysis and processing.

[0035] In an embodiment of the utility model, as shown in Figures 1-6 The inner wall of the limiting plate 42 is slidably connected to a limiting plug plate 43, one side of the U-shaped support top seat 4 is provided with two limiting protrusions 44, and the limiting plug plate 43 is inserted between the two limiting protrusions 44.

[0036] It should be noted that the two limiting protrusions 44 described in this embodiment are symmetrically distributed on both sides of the connecting slot 41.

[0037] Specifically, one end of the limiting plug plate 43 can extend outside the limiting plate 42, when the limiting plate 42 is rotated to a vertical downward angle, the limiting plate 42 achieves shielding and limiting of the connecting block 3, the limiting plug plate 43 is controlled to extend and insert between the two limiting protrusions 44, so that the U-shaped support top seat 4 can limit the limiting plug plate 43 through the two limiting protrusions 44, the limiting plug plate 43 drives the limiting plate 42 to limit the angle, preventing the limiting plate 42 from rotating during the locking process of the connecting block 3.

[0038] In an embodiment of the utility model, as shown in Figures 1-6 The inner wall of the limiting plate 42 is slidably connected to a limiting plug plate 43, one side of the U-shaped support top seat 4 is provided with two limiting protrusions 44, and the limiting plug plate 43 is inserted between the two limiting protrusions 44.

[0039] It should be noted that the two limiting protrusions 44 described in this embodiment are symmetrically distributed on both sides of the connecting slot 41.

[0040] Specifically, the limiting plate 42 limits the limiting plug-in plate 43 through two limiting rods 422, prevents the limiting plug-in plate 43 from accidentally separating from the limiting plate 42, and guides and limits the sliding of the limiting plug-in plate 43, improves the route stability of the limiting plug-in plate 43 when sliding, the return spring 421 pushes the limiting plug-in plate 43, so that the limiting plug-in plate 43 can be stably connected with the two limiting protrusions 44, and the stability during use is improved.

[0041] In an embodiment of the utility model, as shown in Figures 1-6 The limiting plate 42 is provided with a strip hole 45 on one side, and the limiting plug-in plate 43 is rotatably connected with a rotating rod 432 on one side, and the rotating rod 432 is slidably connected with the inner wall of the strip hole 45.

[0042] It should be noted that the limiting plug-in plate 43 described in this embodiment extends outside the limiting plate 42 through the strip hole 45.

[0043] Specifically, the rotating rod 432 controls the position of the limiting plug-in plate 43, so that the limiting plug-in plate 43 can slide in the limiting plate 42, the rotating rod 432 extends out through the strip hole 45, which is convenient for manual control, the rotating rod 432 is lifted to separate the limiting plug-in plate 43 from the two limiting protrusions 44, and then the rotating rod 432 is pushed to drive the entire limiting plate 42 to rotate, so that the limiting plate 42 is out of the limiting range of the connecting block 3.

[0044] In summary, the template of the utility model embodiment, the tower column 1 supports various components of the device, the generator set 11 realizes power generation work by receiving the driving of environmental wind through the wind power blade 12, the sound collection module shell 2 is directed to the wind power blade 12 and collects the sound generated during operation through a plurality of sound sensors 21, the signal conditioning circuit 22 amplifies, filters and pre-processes the sound signal collected by the sound sensor 21 to improve the signal-to-noise ratio and reliability of the signal, the data acquisition and processing module 23 converts the sound signal preprocessed by the signal conditioning circuit 22 into a digital signal, and performs feature extraction and preliminary analysis, the communication module 24 uploads the sound data processed by the data acquisition and processing module 23 to the remote monitoring center in real time, realizes the remote monitoring and management of the wind turbine blade operation state, lifts the rotating rod 432 to separate the limiting plug-in plate 43 from the two limiting protrusions 44, then pushes the rotating rod 432 to drive the entire limiting plate 42 to rotate, so that the limiting plate 42 is out of the limiting range of the connecting block 3, realizes the disassembly of the sound collection module shell 2, and reverses the operation during installation, without using bolts, thereby preventing the detection equipment from gradually loosening, ensuring the accuracy and stability of sound collection, and avoiding the falling of the collection device, causing equipment damage and safety hazard problems.

[0045] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and alterations can be made to the above-described embodiments by those skilled in the art without departing from the scope of the present application.

Claims

1. A wind turbine blade operation sound collecting device comprising a tower column (1), a generator set (11) and three wind power generation blades (12), characterized in that, The bottom of the generator set (11) is provided with a sound collection module shell (2), the top end of the sound collection module shell (2) is fixedly connected with a connecting block (3), and the bottom of the generator set (11) is welded with a U-shaped support top seat (4), wherein A plurality of sound sensors (21) are mounted on one side of the sound collection module shell (2), and the sound sensors (21) correspond to the positions of the wind power generation blades (12); The connecting block (3) is provided with a positioning clamping groove (31) on both sides, and the U-shaped support top seat (4) is provided with a connecting clamping groove (41) at the bottom end; The U-shaped support top seat (4) is rotatably connected with a limiting plate (42) on one side, and the limiting plate (42) is slidably connected with one side of the connecting block (3).

2. The wind turbine blade operating sound collection device according to claim 1, wherein, The sound collection module shell (2) has a signal conditioning circuit (22), a data acquisition and processing module (23) and a communication module (24) therein, and the plurality of sound sensors (21) are electrically connected with the signal conditioning circuit (22).

3. The wind turbine blade operating sound collection device according to claim 1, wherein, The limiting plate (42) is slidably connected with a limiting plug-in plate (43) on the inner wall, and the U-shaped support top seat (4) is provided with two limiting protrusions (44) on one side, and the limiting plug-in plate (43) is inserted between the two limiting protrusions (44).

4. The wind turbine blade operating sound acquisition device according to claim 3, wherein The limiting plate (42) is provided with a reset spring (421) on the inner wall, and the other end of the reset spring (421) is mounted on the top end of the limiting plug-in plate (43), and the limiting plug-in plate (43) is provided with an inner sliding groove (431) therein.

5. A wind turbine blade operating sound acquisition device according to claim 4, characterised in that, The limiting plate (42) is provided with a limiting plug-in plate (43) on the inner wall, and the U-shaped support top seat (4) is provided with two limiting protrusions (44) on one side, and the limiting plug-in plate (43) is inserted between the two limiting protrusions (44). The limiting plate (42) is provided with a reset spring (421) on the inner wall, and the other end of the reset spring (421) is mounted on the top end of the limiting plug-in plate (43), and the limiting plug-in plate (43) is provided with an inner sliding groove (431) therein. The limiting plate (42) is provided with a limiting plug-in plate (43) on the inner wall, and the U-shaped support top seat (4) is provided with two limiting protrusions (44) on one side, and the limiting plug-in plate (43) is inserted between the two limiting protrusions (44).

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