Online non-contact fault diagnosis instrument for wind driven generator blade

Abstract

The invention relates to the technical field of fault diagnosis instruments, and discloses a wind driven generator blade online non-contact fault diagnosis instrument which comprises a box body, a storage battery is arranged on the bottom face in the box body, an acoustic diagnosis instrument is arranged above the storage battery, and a wireless receiving and transmitting module is arranged on the acoustic diagnosis instrument. A memory is arranged on one side of the acoustic diagnostic instrument, a height adjusting assembly is arranged on the side wall of one side of the box body, an acoustic sensor is arranged at the upper end of the height adjusting assembly, and the acoustic sensor is electrically connected with the acoustic diagnostic instrument. According to the online non-contact type fault diagnosis instrument for the wind driven generator blade, the height adjusting assembly is arranged, the vertical pipe can move up and down in the vertical direction of the L-shaped pipe by loosening a fastening knob, so that the height of the top box and the acoustic sensor in the top box can be effectively adjusted, and after height adjustment is completed, the fastening knob is screwed again; the vertical pipe fixing device is easy to operate, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to the technical field of fault diagnosis instruments, in particular to an online non-contact fault diagnosis instrument for a wind turbine blade. Background Art

[0002] As a key component of a wind turbine generator set, the operating status of wind turbine blades directly affects the power generation efficiency and safety of the entire system. Since the blades are exposed to harsh natural environments for a long time, they are easily damaged by various factors, resulting in frequent failures, which require fault diagnosis instruments to diagnose.

[0003] The existing wind turbine blade fault detection is carried out through portable fault detectors and industrial stethoscopes, which cannot monitor the blade status in real time and provide timely fault warnings for operation and maintenance personnel. The online non-contact fault diagnosis instrument is inconvenient to install and fix, which is time-consuming and labor-intensive. After the fault diagnosis instrument is installed on the tower, the position of the acoustic sensor is generally fixed and cannot be effectively adjusted as needed, which affects the monitoring results. Therefore, it is necessary to provide an online non-contact fault diagnosis instrument for wind turbine blades to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an online non-contact fault diagnosis instrument for wind turbine blades, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: an online non-contact fault diagnosis instrument for a wind turbine blade, comprising a box, a movable door is arranged on the front of the box, a battery is arranged on the bottom surface of the box, an acoustic diagnosis instrument is arranged above the battery, a wireless transceiver module is arranged on the acoustic diagnosis instrument, a memory is arranged on one side of the acoustic diagnosis instrument, the acoustic diagnosis instrument is electrically connected to the memory, a height adjustment component is arranged on a side wall of one side of the box, an acoustic sensor is arranged on the upper end of the height adjustment component, and the acoustic sensor is electrically connected to the acoustic diagnosis instrument; The height adjustment component comprises an L-shaped tube, and the L-shaped tube is arranged on a side wall of one side of the box body and is communicated with the interior of the box body.

[0006] Preferably, the acoustic diagnostic instrument, the memory and the wireless transceiver module are all electrically connected to the battery, and the acoustic diagnostic instrument is connected to the terminal device signal via the wireless transceiver module.

[0007] Preferably, a top frame is provided on the upper surface of the box body, a solar panel is provided on the upper end of the top frame, a controller is provided on the solar panel, and the solar panel is electrically connected to the battery through the controller.

[0008] Preferably, the height adjustment assembly also includes a vertical tube, a top box and a limit plate, the top box is arranged at the top end of the vertical tube, an acoustic sensor is arranged inside the top box, a sound-transmitting cover is arranged at the front opening of the top box, the lower end of the vertical tube is inserted into the interior of the L-shaped tube, and a limit groove is provided on the inner wall of the L-shaped tube.

[0009] Preferably, the lower ends of the side walls on both sides of the vertical tube are provided with limiting protrusions, the limiting protrusions are slidably arranged inside the limiting grooves, and the limiting plate is arranged on the upper end surface of the L-shaped tube.

[0010] Preferably, a threaded hole is provided at the upper end of the inner wall of the L-shaped tube, and the L-shaped tube is threadedly connected to a fastening knob through the threaded hole. A reinforcing plate is provided at the upper end of the side wall of the L-shaped tube, and the reinforcing plate is connected to the box body away from one end of the L-shaped tube.

[0011] Preferably, a partition is provided inside the box, and the acoustic diagnostic instrument and the storage are both arranged on the upper end surface of the partition.

[0012] Preferably, fixing blocks are provided at the four corners of the box body, and fixing screws are provided on the fixing blocks.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The wind turbine blade online non-contact fault diagnosis instrument is provided with a height adjustment component. By loosening the fastening knob, the vertical pipe can move up and down along the vertical direction of the L-shaped pipe, thereby effectively adjusting the height of the top box and its internal acoustic sensor. After the height adjustment is completed, the fastening knob is re-tightened to ensure that the height position of the vertical pipe is fixed. The operation is simple, saving time and effort.

[0014] 2. The online non-contact fault diagnosis instrument for wind turbine blades is convenient for fixing the box on the wind turbine tower by providing fixing blocks and fixing screws to ensure the stability of the box. The solar panels can effectively charge the battery. The acoustic sensors collect the sound signals when the blades are running, and the acoustic diagnostic instruments are used to analyze them to determine whether there are faults in the blades, so as to realize real-time monitoring of the blade status and provide timely fault warnings for operation and maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the online non-contact fault diagnosis instrument for wind turbine blades of the present invention; Figure 2 This is the second overall structural schematic diagram of the online non-contact fault diagnosis instrument for wind turbine blades of the present invention; Figure 3 It is a schematic diagram of the internal structure of the box body of the present invention; Figure 4 It is a schematic diagram of the structure of the vertical pipe and the top box of the present invention; Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0016] In the figure: 1. box body; 101. movable door; 102. partition; 2. fixing block; 201. fixing screw; 3. battery; 4. acoustic diagnostic instrument; 5. memory; 6. height adjustment component; 601. L-shaped tube; 602. vertical tube; 603. top box; 604. limit plate; 605. limit bump; 606. tightening knob; 607. reinforcement plate; 7. top frame; 8. solar panel. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-5 , an online non-contact fault diagnosis instrument for a wind turbine blade, comprising a box body 1, a movable door 101 is arranged on the front of the box body 1, a battery 3 is arranged on the bottom surface of the box body 1, an acoustic diagnosis instrument 4 is arranged above the battery 3, a wireless transceiver module is arranged on the acoustic diagnosis instrument 4, a memory 5 is arranged on one side of the acoustic diagnosis instrument 4, the acoustic diagnosis instrument 4 is electrically connected to the memory 5, a height adjustment component 6 is arranged on a side wall of one side of the box body 1, an acoustic sensor is arranged on the upper end of the height adjustment component 6, and the acoustic sensor is electrically connected to the acoustic diagnosis instrument 4; The height adjustment assembly 6 includes an L-shaped tube 601 . The L-shaped tube 601 is disposed on a side wall of the box body 1 and communicates with the interior of the box body 1 .

[0019] Among them; the acoustic diagnostic instrument 4, the memory 5 and the wireless transceiver module are all electrically connected to the battery 3, the acoustic diagnostic instrument 4 is connected to the terminal device signal through the wireless transceiver module, a top frame 7 is arranged on the upper surface of the box body 1, a solar panel 8 is arranged on the upper end of the top frame 7, a controller is arranged on the solar panel 8, the solar panel 8 is electrically connected to the battery 3 through the controller, the top frame 7 is provided, the solar panel 8 is convenient to install, the solar panel 8 is provided, the battery 3 can be effectively charged, the sound signal of the blade during operation is collected by the acoustic sensor, and the acoustic diagnostic instrument 4 is used to analyze it to determine whether there is a fault in the blade, so as to realize real-time monitoring of the blade status and provide timely fault warning for the operation and maintenance personnel, and the memory 5 is used to store the diagnosis results and data.

[0020] Among them; the height adjustment component 6 also includes a vertical tube 602, a top box 603 and a limit plate 604. The top box 603 is arranged at the top of the vertical tube 602. An acoustic sensor is arranged inside the top box 603. A sound-transmitting cover is arranged at the front opening of the top box 603. The lower end of the vertical tube 602 is inserted into the L-shaped tube 601. A limit groove is arranged on the inner wall of the L-shaped tube 601. The top box 603 is arranged to facilitate the installation of the acoustic sensor.

[0021] Among them; the lower ends of the side walls on both sides of the vertical tube 602 are provided with limiting protrusions 605, the limiting protrusions 605 can be slidably arranged inside the limiting groove, the limiting plate 604 is arranged on the upper end surface of the L-shaped tube 601, the upper end of the inner wall of the L-shaped tube 601 is provided with a threaded hole, the L-shaped tube 601 is threadedly connected with a tightening knob 606 through the threaded hole, and a reinforcing plate 607 is arranged on the upper end of the side wall of the L-shaped tube 601, and the reinforcing plate 607 is connected to the box body 1 at one end away from the L-shaped tube 601. By loosening the tightening knob 606, the vertical tube 602 can move up and down along the vertical direction of the L-shaped tube 601, so as to effectively adjust the height of the top box 603 and the acoustic sensor therein. After the height adjustment is completed, the tightening knob 606 is re-tightened to ensure that the height position of the vertical tube 602 is fixed, which is simple to operate and saves time and effort; by providing the reinforcing plate 607, the stability of the L-shaped tube 601 can be effectively further guaranteed.

[0022] Among them, a partition 102 is arranged inside the box 1, and the acoustic diagnostic instrument 4 and the storage 5 are arranged on the upper end surface of the partition 102. Fixed blocks 2 are arranged at the four corners of the box 1, and fixed screws 201 are arranged on the fixed blocks 2. The partition 102 is arranged to facilitate the installation and placement of the acoustic diagnostic instrument 4 and the storage 5, and realize effective separation from the battery 3 to avoid mutual interference. The fixed blocks 2 and the fixed screws 201 are arranged to facilitate the fixing of the box 1 on the tower of the wind turbine to ensure the stability of the box 1.

[0023] Working principle: by providing a fixing block 2 and a fixing screw 201, it is convenient to fix the box body 1 on the tower of the wind turbine to ensure the stability of the box body 1; by providing a partition 102, it is convenient to install and place the acoustic diagnostic instrument 4 and the storage device 5, so as to achieve effective separation from the battery 3 and avoid mutual interference; by providing a solar panel 8, the battery 3 can be effectively charged; the sound signal of the blade during operation is collected by the acoustic sensor, and analyzed by the acoustic diagnostic instrument 4 to determine whether there is a fault in the blade, so as to achieve real-time monitoring of the blade status and provide timely fault warning for the operation and maintenance personnel.

[0024] Furthermore, by loosening the fastening knob 606, the vertical tube 602 can move up and down along the vertical direction of the L-shaped tube 601, so as to effectively adjust the height of the top box 603 and the acoustic sensor inside it. After the height adjustment is completed, the fastening knob 606 is re-tightened to ensure that the height position of the vertical tube 602 is fixed. The operation is simple, saving time and effort.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online non-contact fault diagnosis instrument for wind turbine blades, characterized in that: The invention comprises a box (1), wherein a movable door (101) is arranged on the front of the box (1), a storage battery (3) is arranged on the bottom surface of the box (1), an acoustic diagnostic instrument (4) is arranged above the storage battery (3), a wireless transceiver module is arranged on the acoustic diagnostic instrument (4), a memory (5) is arranged on one side of the acoustic diagnostic instrument (4), the acoustic diagnostic instrument (4) and the memory (5) are electrically connected, a height adjustment component (6) is arranged on a side wall of one side of the box (1), an acoustic sensor is arranged on the upper end of the height adjustment component (6), and the acoustic sensor is electrically connected to the acoustic diagnostic instrument (4); The height adjustment component (6) comprises an L-shaped tube (601), wherein the L-shaped tube (601) is arranged on a side wall of the box body (1) and is in communication with the interior of the box body (1).

2. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 1 is characterized in that: The acoustic diagnostic instrument (4), the memory (5) and the wireless transceiver module are all electrically connected to the battery (3), and the acoustic diagnostic instrument (4) is connected to the terminal device signal via the wireless transceiver module.

3. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 1 is characterized in that: The upper surface of the box body (1) is provided with a top frame (7), the upper end of the top frame (7) is provided with a solar panel (8), the solar panel (8) is provided with a controller, and the solar panel (8) is electrically connected to the storage battery (3) via the controller.

4. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 1 is characterized in that: The height adjustment assembly (6) further comprises a vertical tube (602), a top box (603) and a limit plate (604); the top box (603) is arranged at the top end of the vertical tube (602); an acoustic sensor is arranged inside the top box (603); a sound-transmitting cover is arranged at the front opening of the top box (603); the lower end of the vertical tube (602) is inserted into the interior of the L-shaped tube (601); and a limit groove is arranged on the inner wall of the L-shaped tube (601).

5. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 4 is characterized in that: The lower ends of the side walls on both sides of the vertical tube (602) are both provided with limiting protrusions (605), and the limiting protrusions (605) are slidably arranged inside the limiting grooves. The limiting plate (604) is arranged on the upper end surface of the L-shaped tube (601).

6. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 5, characterized in that: A threaded hole is provided at the upper end of the inner wall of the L-shaped tube (601), and a tightening knob (606) is threadedly connected to the L-shaped tube (601) through the threaded hole. A reinforcing plate (607) is provided at the upper end of the side wall of the L-shaped tube (601), and the reinforcing plate (607) is connected to the box body (1) at one end away from the L-shaped tube (601).

7. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 1 is characterized in that: A partition (102) is arranged inside the box (1), and the acoustic diagnostic instrument (4) and the storage (5) are both arranged on the upper end surface of the partition (102).

8. The on-line non-contact fault diagnosis instrument for wind turbine blades according to claim 1, characterized in that: The box body (1) is provided with fixing blocks (2) at four corners, and fixing screws (201) are provided on the fixing blocks (2).

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