CN-224216860-U - Novel detection device for conducting lightning protection wire

CN224216860UCN 224216860 UCN224216860 UCN 224216860UCN-224216860-U

Abstract

The novel lightning protection line conduction detection device is applied to lightning protection detection of a wind driven generator blade and comprises a polishing assembly and a detection assembly, wherein the polishing assembly comprises a first frame and at least two elastic polishing pieces, the elastic polishing pieces are arranged in the first frame in parallel, the distance between every two adjacent elastic polishing pieces is smaller than the thickness of the blade, the detection assembly comprises a second frame and at least two elastic conductive pieces, the elastic conductive pieces are arranged in the second frame in parallel, the distance between every two adjacent elastic conductive pieces is smaller than the thickness of the blade, and the first frame and the second frame are flexibly connected. According to the utility model, the polishing assembly and the detection assembly are arranged, so that the polishing assembly can remove the oxide layer on the surface of the blade tip lightning receptor, the accuracy of subsequent detection is ensured, misjudgment caused by the influence of the oxide layer on electric contact is avoided, in addition, the elastic conductive piece of the detection assembly can be fully attached to the blade, the stability of detection conduction is improved, and the accuracy of a measurement result is ensured.

Inventors

SUN HAOKUN
HUANG RONG
Su Daizhuang
ZHANG QIUCHENG
YUAN BAIWU

Assignees

福建海电运维科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250403

Claims (10)

1. The novel lightning-proof wire conduction detection device is applied to lightning-proof detection of wind driven generator blades and is characterized by comprising a polishing assembly and a detection assembly; The polishing assembly comprises a first frame and at least two elastic polishing pieces, wherein the elastic polishing pieces are arranged in the first frame in parallel, and the distance between every two adjacent elastic polishing pieces is smaller than the thickness of the blade; the detection assembly comprises a second frame and at least two elastic conductive pieces, wherein the elastic conductive pieces are arranged in the second frame in parallel, and the distance between every two adjacent elastic conductive pieces is smaller than the thickness of the blade; the first frame and the second frame are flexibly connected.
2. The novel lightning-proof wire conduction detection device as set forth in claim 1, further comprising a limiting assembly, wherein the limiting assembly comprises a third frame and a conductive grid, the conductive grid is arranged in the third frame, and the third frame is flexibly connected with one side, far away from the first frame, of the second frame.
3. The device for detecting the conduction of the novel lightning protection wire according to claim 2, wherein the first frame, the second frame and the third frame are all annular frames, and the diameters of the first frame, the second frame and the third frame are sequentially decreased from the first frame to the third frame.
4. The novel lightning-proof wire conduction detection device according to claim 3, wherein the number of the elastic polishing pieces is greater than two, the elastic polishing pieces are uniformly distributed in the first frame according to a preset interval, and the preset interval is smaller than the thickness of the blade.
5. The device for detecting conduction of a novel lightning conductor according to claim 2, wherein the elastic conductive member is electrically connected with the conductive mesh.
6. The novel lightning-proof wire conduction detection device according to claim 2, wherein the first frame, the second frame and the third frame are flexibly connected by rope nets in sequence.
7. The novel lightning-proof wire conduction detection device according to claim 1, wherein the elastic polishing piece comprises a spring and abrasive paper, the abrasive paper is sleeved on the outer surface of the spring, and the spring is connected with the first frame.
8. The device for detecting the conduction of the novel lightning protection wire according to claim 1, wherein the polishing assembly further comprises a camera, and the camera is arranged on the first frame and used for acquiring an image of the polishing state of the blade by the polishing assembly.
9. The detection device for conducting a novel lightning protection wire according to claim 1, wherein the elastic conductive piece is a copper wire, and the elastic conductive piece is bound with the second frame.
10. The novel lightning-proof wire conduction detection device according to claim 1, further comprising a hanging ring, wherein the hanging ring is connected with the first frame or the second frame.

Description

Novel detection device for conducting lightning protection wire Technical Field The utility model relates to the field of wind power, in particular to a novel lightning protection wire conduction detection device. Background To the detection of blade lightning protection wire, mainly rely on manual operation at present, personnel need take hanging flower basket or hanging net, remove to apex or the tower point from cabin or tower base, then connect apex and blade root respectively through wire and instrument equipment to the conductivity of the pre-buried cable of measurement blade. However, the detection mode has the following problems that firstly, the whole measurement period is long, personnel are required to repeatedly climb each time when detecting the blades of one unit, time and labor are consumed, secondly, the requirements on operators and portable equipment are high, particularly when the operators encounter gusts, the personnel are easy to swing, and serious potential safety hazards exist. In addition, some other detection methods have limitations. For example, one method of inspection disclosed in patent CN222121686U is to use a net bag to cover the lightning receptor portion of the blade tip and to bring the copper strip of the inspection device into contact with the blade. If the surface of the blade lightning receptor is oxidized, a sharp needle carried on a copper belt of the device can puncture an oxide film so as to contact the surface of the blade tip, and then the blade tip is connected with a test wire and instrument equipment to realize measurement. However, the method relies on needle contact, the contact force is small, and the oxide film may not be completely destroyed, so that the measurement result is inaccurate, and the actual application effect is affected. Disclosure of utility model The utility model aims to solve the technical problems of high manual operation difficulty and inaccurate test result by providing a novel lightning protection wire conduction detection device. In order to solve the technical problems, the utility model adopts the following technical scheme: A novel lightning-proof wire-conducted detection device is applied to lightning-proof detection of wind driven generator blades and comprises a polishing assembly and a detection assembly; The polishing assembly comprises a first frame and at least two elastic polishing pieces, wherein the elastic polishing pieces are arranged in the first frame in parallel, and the distance between every two adjacent elastic polishing pieces is smaller than the thickness of the blade; the detection assembly comprises a second frame and at least two elastic conductive pieces, wherein the elastic conductive pieces are arranged in the second frame in parallel, and the distance between every two adjacent elastic conductive pieces is smaller than the thickness of the blade; the first frame and the second frame are flexibly connected. In some embodiments, the device further comprises a limiting assembly, wherein the limiting assembly comprises a third frame and a conductive grid, the conductive grid is arranged in the third frame, and the third frame is flexibly connected with one side, away from the first frame, of the second frame. In some embodiments, the first frame, the second frame, and the third frame are each annular frames and have diameters that decrease sequentially in order from the first frame to the third frame. In some embodiments, the number of the elastic polishing pieces is greater than two, and the elastic polishing pieces are uniformly distributed in the first frame according to a preset interval, wherein the preset interval is smaller than the thickness of the blade. In some embodiments, the elastic conductive element is electrically connected to the conductive mesh. In some embodiments, the first frame, the second frame and the third frame are flexibly connected by a rope net in sequence. In some embodiments, the resilient sanding element includes a spring and sandpaper, the sandpaper being sleeved on an outer surface of the spring, the spring being coupled to the first frame. In some embodiments, the grinding assembly further comprises a camera provided to the first frame for capturing an image of the grinding condition of the blade by the grinding assembly. In some embodiments, the elastic conductive element is a copper wire, and the elastic conductive element is bound to the second frame. In some embodiments, a lifting ring is further included, the lifting ring being connected to the first frame or to the second frame. The lightning protection line conduction testing device has the beneficial effects that the blade lightning receptor passes through the space between the two elastic polishing pieces in the first frame, and the elastic polishing pieces are smaller than the thickness of the blade, so that the surface of the blade lightning receptor can be tightly pressed under the action of elasticity, an oxid