Lightning protection detection device for whole wind driven generator

Abstract

A lightning protection detection device for a whole wind driven generator comprises a telescopic supporting rod, an adsorption plate, a wiring handle and a supporting device, the telescopic supporting rod is of a telescopic structure and can fix the telescopic length, the telescopic supporting rod is fixed to a bottom guardrail of the wind driven generator through a supporting frame, one end of the telescopic supporting rod is provided with the adsorption plate, and the other end of the telescopic supporting rod is provided with the wiring handle. A wiring handle is arranged at the other end of the telescopic supporting rod; a camera is arranged at one end, close to the adsorption plate, of the telescopic supporting rod; according to the utility model, the magnetic metal contact, the telescopic rod, the fixing frame, the measuring instrument, the auxiliary camera and other mechanisms are ingeniously assembled, so that the purpose of stable connection between the foundation and the blade tip is achieved, and the grounding resistance of the whole machine is measured; people can be prevented from climbing to the top of the fan for measurement, measurement time is reduced, and detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation devices, in particular to a lightning protection detection device for a complete wind power generator. Background Art

[0002] In the field of offshore wind power, wind turbines are important renewable energy facilities, and their stability and safety are directly related to the reliability of power supply and environmental safety. Especially in the season of frequent thunderstorms, lightning poses a serious threat to offshore wind turbines, which may cause equipment damage, fire, or even paralysis of the entire system. Existing lightning protection detection methods, such as manual tower segment measurement and cabinet grounding detection, can evaluate the lightning protection status of wind turbines to a certain extent, but these traditional methods have obvious limitations.

[0003] Specifically, manual inspection is not only time-consuming and laborious, but also requires professionals to climb to high places to perform measurement tasks. In addition, metal wires of tens or even hundreds of meters must be used during the measurement process, which not only increases the difficulty of the operation, but may also affect the measurement accuracy due to the physical limitations of the wires and environmental factors. For the ground resistance detection of blades, due to the high altitude and special shape of the blades, traditional methods can hardly cover it effectively. Even if you try to use drones to carry wires for blade tip contact measurement, it is difficult to widely use it in actual operation and maintenance due to the high complexity of the operation and strict technical requirements. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lightning protection detection device for a wind turbine as a whole. By cleverly assembling magnetic metal contacts, telescopic rods, fixing frames, measuring instruments, auxiliary cameras and other mechanisms, the purpose of stably connecting the foundation and the blade tip is achieved, and the grounding resistance of the whole machine is measured. It can avoid personnel climbing to the top of the wind turbine for measurement, reduce measurement time and improve detection accuracy.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A wind turbine lightning protection detection device includes a telescopic support rod, a suction plate, a wiring handle and a support device. The telescopic support rod adopts a telescopic structure and can fix the telescopic length. The telescopic support rod is fixed to the bottom guardrail of the wind turbine through a support frame. One end of the telescopic support rod is provided with a suction plate, and the other end of the telescopic support rod is provided with a wiring handle. A camera is installed on the end of the telescopic support rod close to the suction plate.

[0007] In the preferred embodiment, the adsorption plate includes a connecting tube, a rotating shaft, a fixing nut, a base plate, a magnetic plate and a metal contact; the bottom surface of the base plate is vertically connected to the side wall of the connecting tube, a magnetic plate is arranged at the front of the adsorption plate, metal contacts are distributed on the magnetic plate, and a supporting device is connected between the back of the base plate and the telescopic support rod.

[0008] In a preferred solution, a connecting rod is provided at the end of the telescopic support rod, the rotating shaft passes through the connecting tube and the connecting rod and makes the three coaxial, and both ends of the rotating shaft are provided with external threads and are threadedly connected to the fixing nut.

[0009] In the preferred scheme, the supporting device includes a slider, a support rod, a hinge and a spring; a slide groove is provided on the telescopic support rod, a slider is installed in the slide groove, the slider slides along the slide groove, one end of the support rod is hinged to the back of the adsorption plate through a hinge, and the other end of the support rod is connected to the slider, and a spring is connected between the slider and the inner wall of the slide groove.

[0010] In a preferred embodiment, the support frame includes a hoop, a clamp and a connecting plate; the hoop is installed on the outer wall of the telescopic support rod, the clamp is installed on the outer wall of the guardrail and can rotate freely, and the clamp is fixedly connected to the hoop through the connecting plate.

[0011] In a preferred embodiment, a wiring rod is provided at the end of the wiring handle, one end of the wiring rod is electrically connected to the metal contact and the camera respectively through a conductive wire, the conductive wire is buried inside the telescopic support rod, the other end of the wiring rod is connected to the ground wire and the power wire respectively, and the outside of the wiring rod is wrapped with an insulating skin.

[0012] A wind turbine generator lightning protection detection device has the following advantages during use:

[0013] 1. This device can effectively connect the tip of the wind turbine blade with the foundation through the telescopic support rod and the magnetic suction plate, and can avoid the staff from climbing to the top of the wind turbine for measurement, thus reducing the measurement time, improving the detection accuracy and saving time and effort.

[0014] 2. This device can connect the micro camera and the grounding device to the computer, which can not only quickly analyze the grounding condition of the blade, but also assist the adsorption plate to accurately adsorb to the designated position of the blade tip;

[0015] 3. This device innovatively uses a magnetic metal probe to stick the metal contact to the tip of the blade through a magnet. Multiple metal contacts can fully ensure good contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model system;

[0018] Figure 2 This is a front view of the adsorption plate structure of the utility model;

[0019] Figure 3 This is a back view of the adsorption plate structure of the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of the support frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the wiring handle structure of the utility model.

[0022] In the figure: telescopic support rod 1, slide groove 101, connecting rod 102, guardrail 2, support frame 3, clamp 301, clamp ring 302, connecting plate 303, camera 4, adsorption plate 5, connecting tube 501, rotating shaft 502, fixing nut 503, bottom plate 504, magnetic plate 505, metal contact 506, wiring handle 6, wiring rod 601, grounding wire 602, power cord 603, supporting device 7, slider 701, support rod 702, hinge 703, spring 704. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, a wind turbine whole machine lightning protection detection device includes a telescopic support rod 1, an adsorption plate 5, a wiring handle 6 and a support device 7. The telescopic support rod 1 adopts a telescopic structure and can fix the telescopic length. The telescopic support rod 1 is fixed to the bottom guardrail 2 of the wind turbine through a support frame 3. One end of the telescopic support rod 1 is provided with an adsorption plate 5, and the other end of the telescopic support rod 1 is provided with a wiring handle 6. A camera 4 is installed on the end of the telescopic support rod 1 close to the adsorption plate 5;

[0024] During use of the device, the telescopic support rod 1 can be fixed on the guardrail 2 through the support frame 3, and the adsorption plate 5 can be transported to the tip of the wind turbine blade by adjusting the length of the telescopic support rod 1. Since the blade tip is made of metal, the adsorption plate 5 can be adsorbed onto the blade tip, and then the wiring handle 6 at the tail of the telescopic support rod 1 is connected to the foundation. At this time, the blade tip can be fully grounded, and the grounding resistance of the blade tip can be detected by specific equipment.

[0025] The preferred solution is Figure 2As shown, the adsorption plate 5 includes a connecting tube 501, a rotating shaft 502, a fixing nut 503, a bottom plate 504, a magnetic plate 505 and a metal contact 506; the bottom surface of the bottom plate 504 is vertically connected to the side wall of the connecting tube 501, and a magnetic plate 505 is arranged at the front of the adsorption plate 5, and metal contacts 506 are distributed on the magnetic plate 505, and a supporting device 7 is connected between the back of the bottom plate 504 and the telescopic support rod 1; the magnetic plate 505 can be adsorbed on the tip of the blade, and the metal contact 506 can fully contact and conduct with the tip of the blade.

[0026] The preferred solution is Figure 2 As shown, a connecting rod 102 is provided at the end of the telescopic support rod 1, and a rotating shaft 502 passes through the connecting tube 501 and the connecting rod 102 to make the three coaxial, and external threads are provided at both ends of the rotating shaft 502 and are threadedly connected with a fixing nut 503; the base plate 504 and the connecting tube 501 can rotate freely around the axis of the rotating shaft 502 and adjust the adsorption angle, and by installing the fixing nuts 503 on both sides of the rotating shaft 502, the rotating shaft 502 can be prevented from slipping out of the inner flowers of the connecting tube 501 and the connecting rod 102.

[0027] The preferred solution is Figure 3 As shown, the supporting device 7 includes a slider 701, a supporting rod 702, a hinge 703 and a spring 704; a slide groove 101 is provided on the telescopic supporting rod 1, a slider 701 is installed in the slide groove 101, the slider 701 slides along the slide groove, one end of the supporting rod 702 is hinged to the back of the adsorption plate 5 through a hinge 703, the other end of the supporting rod 702 is connected to the slider 701, and a spring 704 is connected between the slider 701 and the inner wall of the slide groove 101; with the above structure, a certain angle is maintained between the adsorption plate 5 and the telescopic supporting rod 1, so that the adsorption plate 5 can be quickly adsorbed to the blade tip of the wind turbine, and a buffer structure is adopted between the adsorption plate 5 and the telescopic supporting rod 1 to reduce the impact force during adsorption and adjust the initial angle of the adsorption plate 5.

[0028] The preferred solution is Figure 4 As shown, the support frame 3 includes a clamp 301, a clamp ring 302 and a connecting plate 303; the clamp 301 is installed on the outer wall of the telescopic support rod 1, the clamp ring 302 is installed on the outer wall of the guardrail 2 and can rotate freely, and the clamp ring 302 is fixedly connected to the clamp 301 through the connecting plate 303; the telescopic support rod 1 can rotate freely around the guardrail 2 through the support frame 3, so as to adjust the angle and allow the adsorption plate 5 to be smoothly adsorbed on the blade tip.

[0029] The preferred solution is Figure 5As shown, a wiring rod 601 is provided at the end of the wiring handle 6, one end of the wiring rod 601 is electrically connected to the metal contact 506 and the camera 4 respectively through a conductive wire, and the conductive wire is buried inside the telescopic support rod 1, and the other end of the wiring rod 601 is connected to the grounding wire 602 and the power cord 603 respectively, and the outside of the wiring rod 601 is wrapped with an insulating skin; the other end of the power cord 603 can be connected to a computer to clearly observe the end condition of the telescopic support rod 1, and a grounding resistance measuring instrument is provided on the grounding wire 602, which can accurately measure the grounding resistance of the wind turbine to ensure the safety of the wind turbine during operation.

Claims

1. A wind turbine lightning protection detection device, comprising a telescopic support rod (1), an adsorption plate (5), a wiring handle (6) and a support device (7), characterized in that: The telescopic support rod (1) adopts a telescopic structure and can fix the telescopic length. The telescopic support rod (1) is fixed to the bottom guardrail (2) of the wind turbine through a support frame (3). An adsorption plate (5) is arranged at one end of the telescopic support rod (1), and a wiring handle (6) is arranged at the other end of the telescopic support rod (1). A camera (4) is installed at one end of the telescopic support rod (1) close to the adsorption plate (5).

2. The wind turbine generator lightning protection detection device according to claim 1 is characterized in that: The adsorption plate (5) comprises a connecting tube (501), a rotating shaft (502), a fixing nut (503), a bottom plate (504), a magnetic plate (505) and a metal contact (506); the bottom surface of the bottom plate (504) is vertically connected to the side wall of the connecting tube (501); the front surface of the adsorption plate (5) is provided with a magnetic plate (505), the metal contacts (506) are distributed on the magnetic plate (505); and a supporting device (7) is connected between the back of the bottom plate (504) and the telescopic support rod (1).

3. The wind turbine generator lightning protection detection device according to claim 2 is characterized in that: A connecting rod (102) is provided at the end of the telescopic support rod (1), and a rotating shaft (502) penetrates the connecting tube (501) and the connecting rod (102) to make the three coaxial, and external threads are provided at both ends of the rotating shaft (502) and are threadedly connected to a fixing nut (503).

4. The wind turbine generator lightning protection detection device according to claim 2 is characterized in that: The support device (7) comprises a slider (701), a support rod (702), a hinge (703) and a spring (704); a slide groove (101) is provided on the telescopic support rod (1), a slider (701) is arranged in the slide groove (101), the slider (701) slides along the slide groove in a limited manner, one end of the support rod (702) is hinged to the back of the adsorption plate (5) through the hinge (703), the other end of the support rod (702) is connected to the slider (701), and a spring (704) is connected between the slider (701) and the inner wall of the slide groove (101).

5. The wind turbine generator lightning protection detection device according to claim 1, characterized in that: The support frame (3) comprises a hoop (301), a clamping ring (302) and a connecting plate (303); the hoop (301) is mounted on the outer wall of the telescopic support rod (1), the clamping ring (302) is mounted on the outer wall of the guardrail (2) and can rotate freely, and the clamping ring (302) is fixedly connected to the hoop (301) via the connecting plate (303).

6. The wind turbine generator lightning protection detection device according to claim 1, characterized in that: A wiring rod (601) is provided at the end of the wiring handle (6), one end of the wiring rod (601) is electrically connected to the metal contact (506) and the camera (4) respectively through a conductive wire, the conductive wire is buried inside the telescopic support rod (1), the other end of the wiring rod (601) is connected to the ground wire (602) and the power wire (603), and the outside of the wiring rod (601) is wrapped with an insulating skin.

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