Wind turbine generator blade lightning protection conduction testing device

Abstract

The utility model discloses a wind turbine generator blade lightning protection conduction testing device, which relates to the technical field of lightning protection conduction detection, and comprises a wind turbine generator main body, the outer wall of the wind turbine generator main body is fixedly connected with three groups of blade main bodies, and the three groups of blade main bodies are annularly distributed on the outer wall of the wind turbine generator main body. A first inserting groove is formed in one side of the outer wall of the blade body, the first inserting groove is rectangular, a containing groove is formed in one side of the inner wall of the first inserting groove, a detection device is arranged at the top end of the blade body, a first pull ring is fixedly connected to the top end of the detection device, the first pull ring is annular, and a first inserting block is fixedly connected to the bottom of the detection device. And a second inserting groove is formed in one side of the interior of the first inserting block. According to the utility model, the first insertion block is inserted into the first slot, and the second insertion block is inserted into the second slot, so that the detection device is fixed and is convenient to disassemble and assemble; the detection device, the resistance measuring instrument, the connector and the lightning arrester form a loop to detect whether the circuit breaks down or not.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection conductivity detection, in particular to a lightning protection conductivity test device for blades of a wind turbine generator set. Background Art

[0002] In recent years, wind power has developed rapidly in emerging markets. Wind turbines include wind rotors and generators; the wind rotors contain blades, hubs, reinforcements, etc.; they have functions such as blades rotating under wind power to generate electricity and generator heads rotating. Wind power generation power sources consist of wind turbines, towers supporting the turbines, battery charge controllers, inverters, unloaders, grid-connected controllers, and battery packs. The installation of wind turbines not only requires installation in areas with high annual average wind speeds, but also requires no obstacles around the wind turbines. Therefore, lightning protection measures for wind turbines are particularly important, so the wind turbine blades have lightning arresters, so that when the wind turbine is struck by lightning, the lightning current will be transferred to the ground. In order to ensure the effectiveness of lightning protection measures, it is necessary to regularly test the lightning protection conductivity of wind turbines.

[0003] After searching the existing Chinese patents: A wind turbine blade lightning protection conductivity detection device (publication number: CN217879581U) includes a wind turbine, a detection device and a drone; a resistance meter is set in the cabin of the wind turbine, and one end of the resistance meter is connected to the wind turbine's lightning protection lower lead; the detection device includes a manipulator and a camera; the manipulator is provided with a connector connected to the wind turbine's lightning arrester, the connector line is connected to the other end of the resistance meter, and the camera lens faces the connector; the drone is connected to the detection device. This utility model improves the wind turbine lightning protection conductivity detection method and improves the detection efficiency while ensuring safe implementation.

[0004] Although the above patent improves the wind turbine blade lightning protection continuity detection method and improves the detection efficiency while ensuring safe implementation, the device fixes the detection device with a suction cup, which is very easy to fall off and fall to the ground and be damaged, which is inconvenient for users to use. Therefore, it is necessary to invent a wind turbine blade lightning protection continuity test device to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a wind turbine blade lightning protection conduction test device to solve the problem in the above background technology that the device fixes the detection device by a suction cup, which is very easy to fall off and fall to the ground and be damaged, making it inconvenient for users to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine blade lightning protection conduction test device, comprising a wind turbine body, the outer wall of the wind turbine body is fixedly connected with three groups of blade bodies, the three groups of blade bodies are distributed in a ring shape on the outer wall of the wind turbine body, a first slot is opened on one side of the outer wall of the blade body, the first slot is rectangular in shape, a receiving groove is opened on one side of the inner wall of the first slot, a detection device is arranged on the top of the blade body, a first pull ring is fixedly connected to the top of the detection device, the first pull ring is ring-shaped, and a first plug is fixedly connected to the bottom of the detection device.

[0007] Preferably, a second slot is formed on one side of the first inserting block, and the second slot is rectangular in shape.

[0008] Preferably, a second inserting block is movably connected inside the second slot.

[0009] Preferably, a movable rod is fixedly connected to one side of the outer wall of the second inserting block.

[0010] Preferably, a spring is fixedly connected to one side of the outer wall of the second plug block, and one end of the spring away from the second plug block is connected to the inner wall of the blade body.

[0011] Preferably, one end of the movable rod away from the second inserting block is fixedly connected to a second pull ring.

[0012] Preferably, a resistance measuring instrument is fixedly connected to one side of the outer wall of the detection device.

[0013] Preferably, a connecting rod is fixedly connected to a side of the outer wall of the detection device away from the resistance measuring instrument, and the connecting rod is L-shaped.

[0014] Preferably, one end of the connecting rod away from the detection device is fixedly connected with a connector.

[0015] Preferably, one end of the connector away from the connecting rod is movably connected to a lightning receptor, and the lightning receptor is cylindrical in shape.

[0016] Technical effects and advantages of the utility model:

[0017] 1. By setting the blade body, the first slot, the receiving slot, the detection device, the first plug-in block, the second slot, the second plug-in block, the movable rod, the spring, and the second pull ring, a group of drones can pull the second pull ring through the pull hook to drive the movable rod and the second plug-in block into the receiving slot, and the spring is squeezed. Then another group of drones will place the detection device, insert the first plug-in block into the first slot, release the second pull ring, and push the second plug-in block into the second slot through the elasticity of the spring itself to fix the detection device. The advantage is that the detection device can be firmly fixed to avoid falling to the ground and being damaged, which is convenient for users to use;

[0018] 2. By setting up a detection device, a resistance measuring instrument, a connector, and a lightning arrester, a loop can be formed through the detection device, the resistance measuring instrument, the connector, and the lightning arrester. The resistance measuring instrument detects the circuit resistance, and the detection device detects the circuit operation. The advantage is that it can determine whether the circuit is damaged and whether it can continue to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The utility model is a schematic diagram of the front view structure of a wind turbine blade lightning protection and conduction test device.

[0021] Figure 2 It is a schematic diagram of the enlarged structure of position A of a lightning protection and continuity test device for blades of a wind turbine generator set according to the utility model.

[0022] Figure 3 The utility model is a schematic diagram of the front view structure decomposition of a blade of a wind turbine blade lightning protection and continuity testing device.

[0023] Figure 4 The utility model is a schematic diagram of the back structure decomposition of a blade of a wind turbine blade lightning protection and continuity testing device.

[0024] In the figure: 1. Wind turbine body; 2. Blade body; 3. First slot; 4. Accommodating slot; 5. Detection device; 6. First pull ring; 7. First plug block; 8. Second slot; 9. Second plug block; 10. Movable rod; 11. Spring; 12. Second pull ring; 13. Resistance meter; 14. Connecting rod; 15. Connector; 16. Lightning arrester. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4 The wind turbine blade lightning protection conduction test device shown in the figure comprises a wind turbine body 1, wherein the wind turbine body 1 is the main part of the device and is used to connect other components; three groups of blade bodies 2 are fixedly connected to the outer wall of the wind turbine body 1, and the three groups of blade bodies 2 are distributed in a ring shape on the outer wall of the wind turbine body 1, wherein the blade bodies 2 are used to connect other components, so as to measure whether the circuit is faulty; a first slot 3 is opened on one side of the outer wall of the blade body 2, and the shape of the first slot 3 is rectangular, wherein the first slot 3 is opened to accommodate a first plug block 7; the first slot 3 A receiving groove 4 is provided on one side of the inner wall, wherein the receiving groove 4 is provided for accommodating the second plug-in block 9, the movable rod 10 and other components to slide inside; a detection device 5 is provided at the top of the blade body 2, wherein the detection device 5 is provided for detecting whether the circuit is running; a first pull ring 6 is fixedly connected to the top of the detection device 5, and the first pull ring 6 is annular in shape, wherein the first pull ring 6 is provided for being driven by the hook of the drone; a first plug-in block 7 is fixedly connected to the bottom of the detection device 5, wherein the first plug-in block 7 is provided for being inserted into the first slot 3, so as to be fixed with the rest of the components.

[0027] A second slot 8 is provided at one side of the first plug-in block 7 . The second slot 8 is rectangular in shape. The second slot 8 is provided to accommodate the second plug-in block 9 .

[0028] A second inserting block 9 is movably connected inside the second slot 8 , wherein the second inserting block 9 is inserted into the second slot 8 to fix the first inserting block 7 , thereby driving the detection device 5 to be fixed.

[0029] A movable rod 10 is fixedly connected to one side of the outer wall of the second inserting block 9 , wherein the movable rod 10 is provided to drive the second inserting block 9 .

[0030] A spring 11 is also fixedly connected to one side of the outer wall of the second plug block 9, and the end of the spring 11 away from the second plug block 9 is connected to the inner wall of the blade body 2, wherein the spring 11 is used to push the second plug block 9 into the second slot 8 through its own elasticity.

[0031] One end of the movable rod 10 away from the second plug block 9 is fixedly connected with a second pull ring 12, wherein the second pull ring 12 is provided to be driven by the pull hook of the drone.

[0032] A resistance measuring instrument 13 is fixedly connected to one side of the outer wall of the detection device 5 , wherein the resistance measuring instrument 13 is provided for detecting the resistance of the circuit.

[0033] A connecting rod 14 is fixedly connected to a side of the outer wall of the detection device 5 away from the resistance measuring instrument 13 . The connecting rod 14 is L-shaped, and the connecting rod 14 is used to connect and fix the connector 15 .

[0034] One end of the connecting rod 14 away from the detection device 5 is fixedly connected with a connector 15, wherein the connector 15 is used to cooperate with other components such as a lightning rod 16 to form a loop for convenient measurement.

[0035] One end of the connector 15 away from the connecting rod 14 is movably connected to a lightning receptor 16, which is cylindrical in shape. The lightning receptor 16 is used to cooperate with other components to form a loop for convenient measurement.

[0036] Working principle: When using this wind turbine blade lightning protection conduction test device, the user uses a group of drones to use a hook to pull the second pull ring 12, and the second pull ring 12 drives the movable rod 10 and the second plug block 9 to enter the accommodating groove 4, and the spring 11 is squeezed. Then another group of drones drives the first pull ring 6 through the hook to borrow force, place the detection device 5, insert the first plug block 7 into the first slot 3, release the second pull ring 12, and push the second plug block 9 into the second slot 8 through the elasticity of the spring 11 itself to fix the detection device 5; at the same time, the connecting rod 14 on one side of the detection device 5 connects the connector 15 with the lightning arrester 16, so as to cooperate with the detection device 5 and the resistance measuring instrument 13 to form a loop, the resistance measuring instrument 13 detects the circuit resistance, and the detection device 5 detects the circuit operation, so as to determine whether the circuit has a fault and whether it can continue to operate.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind turbine blade lightning protection conduction test device, comprising a wind turbine body (1), characterized in that: The outer wall of the wind turbine main body (1) is fixedly connected to three groups of blade main bodies (2), the three groups of blade main bodies (2) are distributed in an annular shape on the outer wall of the wind turbine main body (1), a first slot (3) is provided on one side of the outer wall of the blade main body (2), the first slot (3) is in a rectangular shape, a receiving groove (4) is provided on one side of the inner wall of the first slot (3), a detection device (5) is provided at the top end of the blade main body (2), a first pull ring (6) is fixedly connected to the top end of the detection device (5), the first pull ring (6) is in an annular shape, and a first plug block (7) is fixedly connected to the bottom of the detection device (5).

2. A wind turbine blade lightning protection conduction test device according to claim 1, characterized in that: A second slot (8) is provided on one side of the interior of the first insert block (7), and the second slot (8) is in the shape of a rectangle.

3. A wind turbine blade lightning protection conduction test device according to claim 2, characterized in that: A second inserting block (9) is movably connected inside the second slot (8).

4. A wind turbine blade lightning protection conduction test device according to claim 3, characterized in that: A movable rod (10) is fixedly connected to one side of the outer wall of the second insert block (9).

5. A wind turbine blade lightning protection conduction test device according to claim 3, characterized in that: A spring (11) is also fixedly connected to one side of the outer wall of the second plug block (9), and one end of the spring (11) away from the second plug block (9) is connected to the inner wall of the blade body (2).

6. A wind turbine blade lightning protection conduction test device according to claim 4, characterized in that: One end of the movable rod (10) away from the second inserting block (9) is fixedly connected to a second pull ring (12).

7. A wind turbine blade lightning protection conduction test device according to claim 1, characterized in that: A resistance measuring instrument (13) is fixedly connected to one side of the outer wall of the detection device (5).

8. A wind turbine blade lightning protection conduction test device according to claim 7, characterized in that: A connecting rod (14) is fixedly connected to a side of the outer wall of the detection device (5) away from the resistance measuring instrument (13), and the connecting rod (14) is in an L-shape.

9. A wind turbine blade lightning protection conduction test device according to claim 8, characterized in that: One end of the connecting rod (14) away from the detection device (5) is fixedly connected to a connector (15).

10. A wind turbine blade lightning protection conduction test device according to claim 9, characterized in that: One end of the connector (15) away from the connecting rod (14) is movably connected to a lightning receptor (16), and the lightning receptor (16) is cylindrical in shape.

Images