Partial discharge remote positioning device

Abstract

The utility model discloses a partial discharge long-distance positioning device, which comprises a lifting upright post, a rotary motor, an electric indexer, an arc-shaped sound receiving cover, an electric telescopic rod, a sonic sensor array, a laser distance measuring sensor, a noise reduction module, a gain module and a microprocessor, the sound wave sensor array can be rotated and lifted to adjust the detection direction and the detection range through cooperation of the rotating motor and the electric support, large-range partial discharge positioning detection can be achieved, and audio noise received by the sound wave sensor is processed and eliminated through the noise reduction module. Audio information received by the sonic sensor is amplified and gained through the gain module, the long-distance sensing precision of the sonic sensor array is improved, and the laser ranging sensor is matched with the telephoto zoom camera, so that the precision of partial discharge long-distance positioning detection is improved. And detection positioning information is transmitted to a remote terminal through the remote transmission module, so that electric power personnel can conveniently arrange to carry out targeted inspection and maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of discharge detection equipment, and in particular to the technical field of partial discharge long-distance positioning device. Background Technology

[0002] Partial discharge is a discharge phenomenon in high-voltage electrical equipment at high electric field strength. This discharge only causes a local short circuit in the insulation of the electrical equipment without forming a conductive path. Slight partial discharge has little impact on the insulation of electrical equipment, and the insulation strength decreases slowly. However, strong partial discharge can cause the insulation strength of electrical equipment to drop rapidly. Therefore, high-intensity partial discharge is one of the early characteristics of insulation damage in electrical equipment and is an important aspect of routine inspection. When partial discharge occurs in high-voltage electrical equipment, ultrasonic energy is generated due to the breakdown of gas or liquid on the insulation surface, and it is dispersed in all directions. The sound waves generated in the discharge are detected by sound pressure sensors and converted into signal waves. By using the difference in the transmission time of electrical signals and sound signals, the distance from the detection point to the discharge point can be calculated. Most existing partial discharge detection equipment is unidirectional and can only locate partial discharge in a small, specific area. It cannot achieve long-distance location detection of partial discharge over a large area. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the existing technology and propose a partial discharge long-distance positioning device. This device can rotate and lift to adjust the detection orientation and detection range, realize large-scale partial discharge positioning and detection, improve the accuracy of partial discharge long-distance positioning and detection, and transmit the detection and positioning information to a remote terminal, so as to facilitate power personnel to arrange targeted inspection and maintenance.

[0004] To achieve the above objectives, this utility model proposes a partial discharge long-range positioning device, including a lifting column, a rotary motor, an electric rotary positioner, an arc-shaped sound receiver, an electric telescopic rod, an acoustic sensor array, a laser rangefinder, a noise reduction module, a gain module, and a microprocessor. A rotary motor is fixedly mounted on the top of the lifting column, and an electric rotary positioner is connected to the top of the rotary motor. An arc-shaped sound receiver is connected to the upper part of the electric rotary positioner. An electric telescopic rod is located at the center of the bottom of the inner side of the arc-shaped sound receiver, and an acoustic sensor array is located at the top of the electric telescopic rod. A laser rangefinder is located in the center of the sensor array. The acoustic sensor array is connected to the input of the noise reduction module, which is located inside the electric telescopic mast. The output of the noise reduction module is connected to the input of the gain module, which is also located inside the electric telescopic mast. The output of the gain module is connected to a microprocessor, which is located outside the arc-shaped sound-receiving cover. The microprocessor has a built-in remote transmission module and is connected to the rotary motor, electric positioner, electric telescopic mast, acoustic sensor array, laser rangefinder, noise reduction module, and gain module.

[0005] Preferably, a fixed base is fixedly installed at the bottom of the lifting column, the lifting column is vertically installed on the top of the fixed base, and a number of reinforcing ribs connected to the fixed base are evenly arranged around the lower part of the lifting column.

[0006] Preferably, the connection between the rotary motor and the electric indexer is provided with a support column. The rotary motor drives the support column to rotate in the horizontal direction, and the electric indexer drives the arc-shaped microphone cover to rotate in the vertical direction.

[0007] Preferably, the arc-shaped microphone cover is a semi-circular arc-shaped metal cover, and there are multiple arc-shaped microphone covers, which are evenly arranged around the top of the rotating motor.

[0008] Preferably, the acoustic sensor array includes a mounting base plate and acoustic sensors. The mounting base plate is detachably mounted on the top of the electric telescopic rod. There are multiple acoustic sensors, which are evenly distributed on the outer surface of the mounting base plate. The laser rangefinder is mounted on the mounting base plate.

[0009] Preferably, a plurality of telephoto zoom cameras are provided on the outer side of the opening of the arc-shaped microphone cover, and the telephoto zoom cameras are connected to a microprocessor.

[0010] The beneficial effects of this utility model are as follows: By combining a lifting column, a rotary motor, an electric positioner, an arc-shaped sound receiver, an electric telescopic rod, an acoustic sensor array, a laser rangefinder, a noise reduction module, a gain module, and a microprocessor, and through experimental optimization, this utility model can use the rotary motor in conjunction with the electric support to rotate and lift the acoustic sensor array to adjust the detection orientation and detection range, enabling large-scale partial discharge location detection. The noise reduction module processes and eliminates the audio noise received by the acoustic sensor, and the gain module amplifies the audio information received by the acoustic sensor, improving the long-distance sensing accuracy of the acoustic sensor array. The laser rangefinder, in conjunction with a telephoto zoom camera, further improves the accuracy of long-distance partial discharge location detection. The remote transmission module transmits the detection location information to a remote terminal, facilitating targeted inspection and maintenance by power personnel.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the partial discharge long-distance positioning device of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the arc-shaped microphone cover of the partial discharge long-distance positioning device of this utility model.

[0014] In the diagram: 1-Lifting column, 2-Rotary motor, 3-Electric rotary positioner, 4-Arc-shaped sound receiver cover, 5-Electric telescopic rod, 6-Acoustic sensor array, 7-Laser rangefinder sensor, 8-Noise reduction module, 9-Gain module, 10-Microprocessor, 11-Telephoto zoom camera. Detailed Implementation

[0015] See Figure 1 and Figure 2This utility model discloses a partial discharge long-distance positioning device, comprising a lifting column 1, a rotary motor 2, an electric rotary positioner 3, an arc-shaped sound receiver 4, an electric telescopic rod 5, an acoustic sensor array 6, a laser rangefinder 7, a noise reduction module 8, a gain module 9, and a microprocessor 10. The rotary motor 2 is fixedly mounted on the top of the lifting column 1. The electric rotary positioner 3 is connected to the top of the rotary motor 2. The arc-shaped sound receiver 4 is connected to the upper part of the electric rotary positioner 3. The electric telescopic rod 5 is located at the center of the bottom of the inner side of the arc-shaped sound receiver 4. The top of the electric telescopic rod 5 is... An acoustic wave sensor array 6 is provided, with a laser rangefinder 7 located in the center of the acoustic wave sensor array 6. The acoustic wave sensor array 6 is connected to the input of a noise reduction module 8, which is located inside the electric telescopic rod 5. The output of the noise reduction module 8 is connected to the input of a gain module 9, which is also located inside the electric telescopic rod 5. The output of the gain module 9 is connected to a microprocessor 10, which is located outside the arc-shaped sound-receiving cover 4. The microprocessor 10 has a built-in remote transmission module and is connected to a rotary motor 2 and an electric... The moving positioner 3, electric telescopic rod 5, acoustic sensor array 6, laser rangefinder 7, noise reduction module 8, and gain module 9 are connected one by one. A fixed base is fixedly installed at the bottom of the lifting column 1, which is vertically positioned on top of the fixed base. Several reinforcing ribs connected to the fixed base are evenly arranged around the lower part of the lifting column 1. A supporting column is installed at the connection between the rotary motor 2 and the electric positioner 3. The rotary motor 2 drives the supporting column to rotate horizontally, and the electric positioner 3 drives the arc-shaped sound-absorbing cover 4 to rotate vertically. 4 is a semi-circular arc-shaped metal cover. There are multiple arc-shaped sound-receiving covers 4, which are evenly arranged around the top of the rotary motor 2. The acoustic sensor array 6 includes a mounting base plate and acoustic sensors. The mounting base plate is detachably mounted on the top of the electric telescopic rod 5. There are multiple acoustic sensors, which are evenly distributed on the outer surface of the mounting base plate. The laser rangefinder 7 is mounted on the mounting base plate. Several telephoto zoom cameras 11 are arranged on the outer side of the opening of the arc-shaped sound-receiving cover 4. The telephoto zoom cameras 11 are connected to the microprocessor 10.

[0016] This invention combines a lifting column 1, a rotary motor 2, an electric rotary positioner 3, an arc-shaped sound receiver 4, an electric telescopic rod 5, an acoustic sensor array 6, a laser rangefinder 7, a noise reduction module 8, a gain module 9, and a microprocessor 10. Through experimental optimization, the rotary motor 2, in conjunction with the electric support, can rotate and lift the acoustic sensor array 6 to adjust its detection position and range, enabling wide-range partial discharge location detection. The noise reduction module 8 processes and eliminates audio noise received by the acoustic sensor, and the gain module 9 amplifies the audio information received by the acoustic sensor, improving the long-distance sensing accuracy of the acoustic sensor array 6. The laser rangefinder 7, in conjunction with a telephoto zoom camera 11, further enhances the accuracy of long-distance partial discharge location detection. The detection and location information is transmitted to a remote terminal via a remote transmission module, facilitating targeted inspection and maintenance by power personnel.

[0017] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A partial discharge long-distance positioning device, characterized in that: The system includes a lifting column (1), a rotary motor (2), an electric rotary positioner (3), an arc-shaped sound receiver (4), an electric telescopic rod (5), an acoustic sensor array (6), a laser rangefinder (7), a noise reduction module (8), a gain module (9), and a microprocessor (10). The top of the lifting column (1) is fixedly equipped with a rotary motor (2), the top of the rotary motor (2) is connected to an electric rotary positioner (3), the upper part of the electric rotary positioner (3) is connected to an arc-shaped sound receiver (4), the center of the bottom of the inner side of the arc-shaped sound receiver (4) is equipped with an electric telescopic rod (5), the top of the electric telescopic rod (5) is equipped with an acoustic sensor array (6), and the middle of the acoustic sensor array (6) is equipped with a laser rangefinder. (7) The acoustic sensor array (6) is connected to the input end of the noise reduction module (8). The noise reduction module (8) is located inside the electric telescopic rod (5). The output end of the noise reduction module (8) is connected to the input end of the gain module (9). The gain module (9) is located inside the electric telescopic rod (5). The output end of the gain module (9) is connected to the microprocessor (10). The microprocessor (10) is located outside the arc-shaped sound receiver (4). The microprocessor (10) has a built-in remote transmission module. The microprocessor (10) is connected to the rotary motor (2), the electric rotary positioner (3), the electric telescopic rod (5), the acoustic sensor array (6), the laser rangefinder (7), the noise reduction module (8), and the gain module (9) one by one.

2. The partial discharge long-distance positioning device as described in claim 1, characterized in that: The bottom of the lifting column (1) is fixedly provided with a fixed base plate. The lifting column (1) is vertically provided on the top of the fixed base plate. The lower part of the lifting column (1) is evenly surrounded by a number of reinforcing ribs connected to the fixed base plate.

3. The partial discharge long-distance positioning device as described in claim 1, characterized in that: The connection between the rotary motor (2) and the electric rotary positioner (3) is provided with a support column. The rotary motor (2) drives the support column to rotate in the horizontal direction, and the electric rotary positioner (3) drives the arc-shaped microphone cover (4) to rotate in the vertical direction.

4. The partial discharge long-distance positioning device as described in claim 1, characterized in that: The arc-shaped microphone cover (4) is a semi-circular arc-shaped metal cover. There are multiple arc-shaped microphone covers (4), which are evenly arranged around the top of the rotating motor (2).

5. The partial discharge long-distance positioning device as described in claim 1, characterized in that: The acoustic sensor array (6) includes a mounting base plate and acoustic sensors. The mounting base plate is detachably mounted on the top of the electric telescopic rod (5). There are multiple acoustic sensors, which are evenly distributed on the outer side of the mounting base plate. The laser rangefinder (7) is mounted on the mounting base plate.

6. The partial discharge long-distance positioning device as described in claim 1, characterized in that: Several telephoto zoom cameras (11) are provided on the outside of the opening of the arc-shaped microphone cover (4), and the telephoto zoom cameras (11) are connected to the microprocessor (10).

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