Multifunctional partial discharge live detection instrument and method for high-voltage distribution cabinet maintenance

Abstract

The application discloses a multifunctional partial discharge live detection instrument and method for high-voltage power distribution cabinet maintenance, and relates to the technical field of discharge live detection instruments. The application comprises a detection box, and further comprises a reflection assembly, two reflection arc plates are arranged in the reflection assembly, a transmitting port is arranged in the reflection assembly and is used for transmitting a detection signal, a detection unit is arranged in the detection box and comprises a driving assembly and a pushing assembly, an ejection distance adjusting rod is arranged in the adjusting assembly, an adjusting unit comprises a linkage assembly and a connecting assembly, and a plurality of electric measurement sensors are arranged in the connecting assembly. The application has the advantages that the reflection position of the detection signal and the receiving strength of the reflection signal can be flexibly adjusted according to the position and signal strength of the detection area, the effective detection of weak discharge phenomena can be realized, the type of the detection signal can be flexibly adjusted during detection, the accurate and comprehensive detection of different types of discharge phenomena can be realized, and the detection precision is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of discharge charged detectors, and in particular to a multifunctional partial discharge charged detector and method for high-voltage power distribution cabinet maintenance. BACKGROUND

[0002] The partial discharge charged detector is an instrument for detecting the partial discharge of the high-voltage power distribution cabinet, which is mainly used for monitoring the partial discharge phenomenon inside the high-voltage power distribution cabinet to determine whether the high-voltage power distribution cabinet has a leakage condition, thereby facilitating the maintenance of the high-voltage power distribution cabinet and improving the safety of the high-voltage power distribution cabinet operation.

[0003] The existing partial discharge charged detector realizes partial discharge detection in various ways, such as a high-frequency partial discharge charged detector disclosed in CN213715378U, which comprises a base plate, a fixing seat, a bearing, a shaft, a first support arm, a worm gear, a worm, a motor, a speed reducer, an output shaft, a non-circular hole, a reflecting surface, a protective shell, a second support arm, a chuck, and an ultrasonic sensor. The fixing seat is fixedly connected to the base plate, the bearing is fixedly connected to the fixing seat, the shaft is arranged on the bearing, the lower end of the first support arm is fixedly connected to the shaft, the worm gear is fixed to the shaft, the worm is arranged on the fixing seat through another bearing, the worm and the worm gear are meshed with each other, the motor and the speed reducer are fixedly connected to the base plate, and the ultrasonic sensor is arranged on the output shaft.

[0004] When the detector performs discharge detection, it usually emits different detection signals through various sensors and receives reflected signals through a reflecting plate to determine whether there is a discharge phenomenon in the detection area. The angle, position, and reflecting area of the reflecting plate on the existing detector cannot be adjusted, so that when the discharge phenomenon in the detection area is weak, the small reflecting area cannot capture and reflect the reflected signals, resulting in inaccurate detection results.

[0005] For example, the existing technology mentioned above adjusts the inclination angle of the reflecting surface by using the cooperation of the worm gear and the worm. This method can only adjust the receiving direction of the reflected signals, but cannot increase the receiving strength of the signal reflection. Moreover, the position of the reflecting surface cannot be adjusted, and the receiving range of the reflected signals is limited. In addition, the device cannot quickly select different sensors to emit different detection signals according to the detection requirements, so it cannot realize discharge detection in multiple ways and has certain limitations.

[0006] Therefore, it is necessary to design a multifunctional partial discharge charged detector and method for high-voltage power distribution cabinet maintenance to solve the above problems. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a multifunctional partial discharge charged detector and method for high-voltage power distribution cabinet maintenance, which solves the problems raised in the background.

[0008] In order to achieve the above object, the present application is realized by the following technical scheme: a multifunctional partial discharge live detection instrument for high-voltage power distribution cabinet maintenance, comprising a detection box for protection, further comprising:

[0009] A reflection assembly is arranged outside the detection box, two reflection arc plates for absorbing reflected detection signals are arranged in the reflection assembly, and the reflection assembly is used for adjusting the angle of the reflection arc plates to adjust the range of absorbing reflected detection signals;

[0010] A transmitting port is arranged in the reflection assembly and is used for transmitting detection signals;

[0011] A detection unit is arranged in the detection box and comprises a driving assembly and a pushing assembly, wherein a ejection distance adjusting rod is arranged in the pushing assembly, the driving assembly cooperates with the pushing assembly to realize the movement of the ejection distance adjusting rod, and the position adjustment of the reflection assembly is realized;

[0012] An adjustment unit is arranged in the detection box and comprises a linkage assembly and a connecting assembly, wherein a plurality of electric measurement sensors for transmitting different detection signals are arranged in the connecting assembly, the linkage assembly cooperates with the pushing assembly to realize the position adjustment of the connecting assembly, so that the transmitting port cooperates with different electric measurement sensors and transmits different detection signals.

[0013] Preferably, two hand carrying straps are arranged outside the detection box, and the portable movement of the detection box is realized through the cooperation of the hand carrying straps;

[0014] A control panel is arranged outside the detection box, the detection unit, the reflection assembly and the adjustment unit are controlled by the control panel to realize the opening and closing and the running state, and the automatic discharge live detection of the equipment is realized.

[0015] Preferably, the reflection assembly comprises a moving frame, a spring shaft is fixedly installed on the moving frame, the transmitting port is arranged on the spring shaft, two reflection arc plates are rotatably installed on the spring shaft, and elastic side covers are fixedly installed on both sides of the two reflection arc plates;

[0016] A traction motor is fixedly installed at the rear part of the moving frame, a traction roller is fixedly installed on the driving end of the traction motor, and traction ropes are fixedly connected between the traction roller and the two reflection arc plates.

[0017] Preferably, a partition plate is fixedly installed in the detection box, the driving assembly comprises a servo motor fixedly installed on the partition plate, a driving roller is fixedly installed on the driving end of the servo motor, a liquid storage tank is fixedly installed on the partition plate, the liquid storage tank is rotatably connected with the driving roller, and a moving mechanism is installed in the liquid storage tank.

[0018] Preferably, the moving mechanism comprises a threaded push rod fixedly installed on the driving roller, a liquid pushing plate slidingly installed in the liquid storage tank, a threaded sleeve disc fixedly installed on the liquid pushing plate, and the threaded sleeve disc is in threaded connection with the threaded push rod, and the liquid storage tank is filled with hydraulic oil between the liquid pushing plate.

[0019] Preferably, the pushing assembly comprises a shielding bottom box fixedly installed at the lower portion of the detection tank, a recovery box fixedly installed on the shielding bottom box and matched with the moving frame, and a liquid storage pipe fixedly installed between the shielding bottom box and the recovery box, a liquid conducting pipe for conducting hydraulic oil is fixedly communicated between the liquid storage pipe and the liquid storage tank, and the liquid conducting pipe is provided with a control valve two;

[0020] The piston disc is slidingly installed in the liquid storage pipe, and the ejecting distance adjusting rod is fixedly installed between the piston disc and the moving frame, and the recovery box and the moving frame are fixedly installed with two elastic spring rods for resetting.

[0021] Preferably, the linkage assembly comprises an adjusting box fixedly installed at the lower portion of the partition plate, and a distribution pipe is fixedly communicated between the adjusting box and the liquid conducting pipe, and the distribution pipe is provided with a control valve one, and the adjusting box is slidingly installed with a piston plate, and the piston plate is fixedly installed with an adjusting frame.

[0022] Preferably, the adjusting frame is fixedly installed with a reset spring rod, and the reset spring rod is fixedly installed with a mounting port, and the mounting port and the electricity measuring sensor are provided with an adsorption mechanism.

[0023] Preferably, the adsorption mechanism comprises an electromagnetic ring one fixedly installed outside the mounting port, each electricity measuring sensor is provided with a connecting port, and the connecting port is provided with an electromagnetic ring two matched with the electromagnetic ring one, and the mounting port and the ejecting distance adjusting rod are provided with an elastic conductor for conducting detection signals.

[0024] The multifunctional partial discharge live-line detection method for high-voltage power distribution cabinet maintenance, the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance, comprises the following steps:

[0025] S1, when detecting, first push the emitting assembly to the vicinity of the high-voltage power distribution cabinet by adjusting the position of the ejecting distance adjusting rod through the cooperation of the driving assembly and the pushing assembly;

[0026] S2, the automatic connection of the electricity measuring sensor is completed through the cooperation of the linkage assembly and the connecting assembly in the adjusting unit;

[0027] S3, the electricity measuring sensor emits a detection signal through the emitting port to perform discharge detection on the equipment to be tested;

[0028] S4, while discharging detection, according to signal intensity, the angle position of the two reflection arc plates is adjusted through the emission assembly, and the absorption intensity of the reflection signal is increased;

[0029] S5, after detection, the next electric detection sensor is connected through the cooperation of the linkage assembly and the connecting assembly, and steps S3-S4 are repeated to detect the equipment to be tested again.

[0030] The application provides a multifunctional partial discharge live detection instrument and method for high-voltage power distribution cabinet maintenance.

[0031] 1、 the discharge live detection instrument can flexibly adjust the position of the reflection arc plate and the emission port by driving the servo motor to cooperate with the extrusion of the ejecting distance adjusting rod during discharge detection, so that the emission port and the reflection arc plate can be close to different positions of the high-voltage power distribution cabinet for discharge detection, the detection range is wider, and the accuracy of the detection result can be effectively improved.

[0032] 2、 the discharge live detection instrument can flexibly adjust the opening angle of the two reflection arc plates according to the reception intensity of the reflection signal during discharge detection through the cooperation of the traction motor and the traction rope, that is, the reflection signal reception range between the two reflection arc plates can be quickly increased, and the reception intensity of the reflection signal can be effectively enhanced, so that effective detection can be performed in the area where the discharge phenomenon is relatively weak, and the detection effect is better.

[0033] 3、 the discharge live detection instrument can flexibly connect different electric detection sensors according to the detection needs during discharge detection, so that different electric detection sensors can be independently started, and the starting of different electric detection sensors does not affect each other, that is, different types of discharge phenomena of the high-voltage power distribution cabinet can be detected, the detection types are wider, and the functionality is stronger.

[0034] 4、 the discharge live detection instrument can flexibly adjust the type of the detection signal emitted by the emission port through the driving of the servo motor and the cooperation of the connecting assembly without changing the position of the emission port and the reflection arc plate during discharge detection, so that different types of discharge phenomena can be detected, and the detection accuracy is higher.

[0035] In summary, the application can flexibly adjust the reflection position of the detection signal and the reception intensity of the reflection signal according to the position and signal intensity of the detection area, effectively detect weak discharge phenomena, flexibly adjust the type of the detection signal during detection, accurately and comprehensively detect different types of discharge phenomena, and the detection accuracy is higher.

[0036] Other features and advantages of the present application will be set forth in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] The specific embodiments of the present application will be further described in the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0038] Figure 1 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0039] Figure 2 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 1 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0040] Figure 3 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 1 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0041] Figure 4 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 3 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0042] Figure 5 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 4 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0043] Figure 6 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0044] Figure 7 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 6 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0045] Figure 8 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 7 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0046] Figure 9 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 7 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0047] Figure 10 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 7 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0048] Figure 11 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 10 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0049] Figure 12 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure. Figure 11 The structural schematic diagram of the multifunctional partial discharge live-line detector for high-voltage power distribution cabinet maintenance provided by the present application is shown in the figure.

[0050] Figure 13This is a schematic diagram of the structure of the adjustment unit in this invention;

[0051] Figure 14 for Figure 13 Schematic diagram of the internal structure of the Zhongce electrical sensor and regulating box;

[0052] Figure 15 for Figure 14 Exploded view of the structure of the electric sensor and the regulating frame.

[0053] In the diagram: 1. Detection box, 2. Control panel, 3. Hand strap, 4. Recycling box, 5. Moving frame, 6. Reflective arc plate, 7. Telescopic spring rod, 8. Push-out adjustment rod, 9. Shielding bottom box, 10. Liquid storage tank, 11. Servo motor, 12. Divider plate, 13. Electrical sensor, 14. Liquid guide tube, 15. Liquid storage tube, 16. Push plate, 17. Drive roller, 18. Traction motor, 19. Threaded sleeve, 20. Threaded push rod, 21. Piston plate, 22. Traction roller, 23. Traction rope, 24. Elastic side cover, 25. Spring shaft, 26. Launch port, 27. Liquid distribution tube, 28. Control valve one, 29. Adjustment box, 30. Telescopic wire, 31. Adjustment frame, 32. Piston plate, 33. Reset spring rod, 34. Installation port, 35. Connection port, 36. Control valve two. Detailed Implementation

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0055] Example 1: Refer to Figures 1-2 as well as Figure 11 A multi-functional partial discharge live detector for high-voltage switchgear maintenance, including a protective detection box 1, which protects the internal detection equipment and improves the operational safety of the internal structure.

[0056] The external part of the detection box 1 is equipped with two carrying straps 3, which enable the portable movement of the detection box 1, so as to flexibly adjust the position of the detection box 1 and realize the detection of discharge phenomena in multi-position and multi-area high-voltage distribution cabinets.

[0057] This testing instrument also includes:

[0058] The reflective component is located outside the detection box 1;

[0059] The transmitting port 26 is located inside the reflective component and is used to transmit a detection signal. The detection signal emitted by the transmitting port 26 can detect the fluctuation of the current and voltage signals in the area to be detected, and interact with the current and voltage phenomena in the detection area to generate a reflected detection signal.

[0060] The reflective assembly is equipped with two reflective arc plates 6 for absorbing the reflected detection signal. The reflective arc plates 6 are used to receive the detection signal reflected from the detection area and to determine the discharge phenomenon in the detection area based on the detection signal.

[0061] The detection unit, located inside the detection box 1, is used to adjust the position of the reflective arc plate 6 and adjust the received signal intensity of the detection area based on the position of the reflective arc plate 6, so as to achieve accurate detection of the discharge phenomenon in the detection area and avoid errors.

[0062] An adjustment unit is installed inside the detection box 1. The adjustment unit is used to adjust the type of detection signal emitted by the transmission port 26, so as to detect different types of discharge phenomena in the area to be detected, with a wider detection range and effectively avoiding omissions.

[0063] The detection box 1 is equipped with a control panel 2 on the outside. The control panel 2 controls the opening and closing and operation status of the detection unit, the reflective component and the adjustment unit to realize the automatic discharge and live detection of the equipment.

[0064] Example 2: Refer to Figures 1-4 as well as Figures 10-12 The difference between this embodiment and embodiment one is that the reflective component is used to adjust the angle of the reflective arc plate 6 to adjust the range of absorbed reflective detection signals.

[0065] The reflective assembly includes a movable frame 5, on which a spring shaft 25 is fixedly mounted, and a transmission port 26 is located on the spring shaft 25. Two reflective arc plates 6 are rotatably mounted on the spring shaft 25, and elastic side covers 24 are fixedly mounted on both sides of the two reflective arc plates 6.

[0066] The upper and lower reflective arc plates 6 and the two elastic side covers 24 together form a complete signal reflection and receiving surface for comprehensive and unobstructed reception of reflected signals.

[0067] The elastic side cover 24 has a certain degree of elasticity and can be stretched or contracted adaptively with the rotation of the two reflective arc plates 6, so that the reflective receiving surface always remains intact and there will be no situation of missed received signals.

[0068] A traction motor 18 is fixedly installed at the rear of the mobile frame 5, and a traction roller 22 is fixedly installed on the drive end of the traction motor 18. A traction rope 23 is fixedly connected between the traction roller 22 and the two reflective arc plates 6.

[0069] The traction motor 18 starts to drive the traction roller 22 to rotate to wind or release the two traction ropes 23, when the two traction ropes 23 are wound, the upper and lower two reflecting arc plates 6 are pulled to deflect outward around the spring shaft 25 as the center axis, thereby increasing the area of the transmitting and receiving surface formed between the two reflecting arc plates 6, thereby increasing the receiving area of the transmitting signal, and further increasing the receiving strength of the reflected signal, so that it can be used in the area where the discharge phenomenon is relatively weak, the transmitting signal is enhanced, and the accuracy of the detection result is improved;

[0070] The spring shaft 25 can be automatically reset, when the two reflecting arc plates 6 deflect outward, the spring shaft 25 is rolled back, and when the traction motor 18 drives the traction roller 22 to release the traction rope 23, the spring shaft 25 is automatically reset to drive the two reflecting arc plates 6 to automatically turn inward, so that the automatic reset of the reflecting arc plate 6 after turning outward is realized, and the reflecting arc plate 6 is reset to move to the initial position.

[0071] Embodiment three: refer to Figures 1-9 The difference between the technical scheme of the embodiment and the embodiment two is that the detection unit comprises a driving assembly and a pushing assembly, the pushing assembly is provided with the ejection distance adjusting rod 8, the driving assembly and the pushing assembly cooperate to realize the movement of the ejection distance adjusting rod 8, and the position adjustment of the reflecting assembly is realized.

[0072] The detection box 1 is fixedly provided with a partition plate 12, the driving assembly comprises a servo motor 11 fixedly installed on the partition plate 12, a driving roller 17 is fixedly installed on the driving end of the servo motor 11, a liquid storage tank 10 is fixedly installed on the partition plate 12, and the liquid storage tank 10 is in rotating connection with the driving roller 17.

[0073] The servo motor 11 drives the driving roller 17 to rotate, the running state of the servo motor 11 is controlled by the control panel 2, the rotation speed, the rotation number and the rotation direction of the driving roller 17 can be accurately controlled by the servo motor 11, and the accurate adjustment of the position of the reflecting arc plate 6 is realized.

[0074] The liquid storage tank 10 is provided with a moving mechanism, the moving mechanism comprises a threaded pushing rod 20 fixedly installed on the driving roller 17, a liquid pushing plate 16 is slidably installed in the liquid storage tank 10, a threaded sleeve disc 19 is fixedly installed on the liquid pushing plate 16, the threaded sleeve disc 19 is in threaded connection with the threaded pushing rod 20, and the liquid storage tank 10 and the liquid pushing plate 16 are filled with hydraulic oil.

[0075] The rotation of the driving roller 17 drives the threaded push rod 20 to rotate. Since the threaded sleeve 19 is threadedly connected with the threaded push rod 20 and can only move horizontally under the limiting action of the liquid pushing plate 16, the rotation of the threaded push rod 20 only drives the threaded sleeve 19 to move horizontally. The moving direction of the threaded sleeve 19 is driven by adjusting the rotation direction of the threaded push rod 20, so that the liquid pushing plate 16 is driven to move horizontally in the liquid storage tank 10. When the threaded push rod 20 rotates forward, the liquid pushing plate 16 moves forward; when the threaded push rod 20 rotates reversely, the liquid pushing plate 16 moves reversely.

[0076] In a further embodiment, the pushing assembly comprises a shielding bottom box 9 fixedly installed at the lower part of the detection tank 1, a recovery box 4 fixedly installed on the shielding bottom box 9 and matched with the moving frame 5, and a liquid storage pipe 15 fixedly installed between the shielding bottom box 9 and the recovery box 4. The liquid storage pipe 15 is fixedly communicated with the liquid storage tank 10 and is provided with a liquid guide pipe 14 for conducting hydraulic oil and a control valve 36.

[0077] When the threaded push rod 20 drives the liquid pushing plate 16 to move forward in the liquid storage tank 10, the liquid pushing plate 16 is pressed to squeeze the hydraulic oil in the liquid storage tank 10 to be guided out through the liquid guide pipe 14, and the control valve 36 is opened to enable the hydraulic oil in the liquid guide pipe 14 to enter the liquid storage pipe 15.

[0078] The liquid storage pipe 15 is slidably installed with a piston disc 21, the ejecting distance adjusting rod 8 is fixedly installed between the piston disc 21 and the moving frame 5, and the recovery box 4 is fixedly installed with two telescopic spring rods 7 for resetting between the moving frame 5.

[0079] When the hydraulic oil in the liquid storage pipe 15 increases, the piston disc 21 is pushed to move, and the piston disc 21 drives the ejecting distance adjusting rod 8 to move. Since the moving frame 5 is fixedly installed on the ejecting distance adjusting rod 8, the moving frame 5 is pushed to move when the ejecting distance adjusting rod 8 moves, thereby driving the launching port 26 and the two reflecting arc plates 6 on the moving frame 5 to move. The reflecting arc plates 6 are moved to be close to the detection area on the high-voltage distribution cabinet, the launching port 26 and the reflecting arc plates 6 are closer to the detection area, the emission and emission-receiving effect of the detection signal is better, and the accuracy of the detection result is further improved.

[0080] When the moving frame 5 moves, the telescopic spring rod 7 is stretched. When the liquid pushing plate 16 moves reversely, the hydraulic oil in the liquid storage pipe 15 is sucked back to the liquid storage tank 10 through the liquid guide pipe 14, and the telescopic spring rod 7 is automatically retracted to reset to drive the moving frame 5 to reset, thereby driving the ejecting distance adjusting rod 8 and the piston disc 21 to move reversely, and the ejecting distance adjusting rod 8 is returned to the liquid storage pipe 15, and the backflow efficiency of the hydraulic oil is further improved, and the automatic recovery of the moving frame 5 is realized.

[0081] Embodiment four: refer to Figures 2-5 And Figures 13-15 The difference between the technical scheme of this embodiment and that of embodiment three is that the adjusting unit comprises a linkage assembly and a connecting assembly, a plurality of electrical measurement sensors 13 for emitting different detection signals are arranged in the connecting assembly, the linkage assembly cooperates with the pushing assembly to adjust the position of the connecting assembly, so that the emission port 26 cooperates with different electrical measurement sensors 13 and emits different detection signals.

[0082] The linkage assembly comprises an adjusting box 29 fixedly installed at the lower part of the partition plate 12, a distribution pipe 27 fixedly and communicatively arranged between the adjusting box 29 and the liquid guide pipe 14, and a control valve one 28 arranged on the distribution pipe 27. A piston plate 32 is slidably installed in the adjusting box 29, and an adjusting frame 31 is fixedly installed on the piston plate 32.

[0083] When it is necessary to adjust the type of the emitted detection signal, the control valve two 36 is closed and the control valve one 28 is opened to make the distribution pipe 27 in a communication state. When the control valve two 36 is closed, the moving frame 5 will not move. Then, the servo motor 11 drives the liquid pushing plate 16 to move to extrude the hydraulic oil in the hydraulic oil tank 10. At this time, the hydraulic oil will be injected into the distribution pipe 27 through the liquid guide pipe 14, and then into the adjusting box 29 through the distribution pipe 27.

[0084] When the hydraulic oil in the adjusting box 29 increases, the piston plate 32 will be pushed to move, thereby driving the adjusting frame 31 on the piston plate 32 to move horizontally in the detection box 1.

[0085] In a further embodiment, the connecting assembly comprises a plurality of electrical measurement sensors 13 fixedly installed in the detection box 1. A reset spring rod 33 is fixedly installed on the adjusting frame 31, and a mounting port 34 is fixedly installed on the reset spring rod 33. When the adjusting frame 31 moves, the reset spring rod 33 on the adjusting frame 31 will move, thereby driving the mounting port 34 on the reset spring rod 33 to move, so that the mounting port 34 moves to a position directly opposite the next electrical measurement sensor 13.

[0086] An adsorption mechanism is arranged between the mounting port 34 and the electrical measurement sensor 13. The adsorption mechanism comprises an electromagnetic ring one fixedly installed outside the mounting port 34. A connecting port 35 is arranged on each electrical measurement sensor 13, and an electromagnetic ring two cooperates with the electromagnetic ring one is arranged on the connecting port 35. A telescopic wire 30 for conducting the detection signal is arranged between the mounting port 34 and the ejecting distance rod 8.

[0087] When the installation port 34 position is moved, the electromagnetic ring one on the installation port 34 and the electromagnetic ring two on the corresponding electricity measuring sensor 13 are started, and the electromagnetic ring one and the electromagnetic ring two generate magnetic attraction force when starting, thereby pulling the installation port 34 to move and clamping the installation port 34 into the connecting port 35 on the electricity measuring sensor 13, and completing the automatic connection of the installation port 34 and the connecting port 35;

[0088] At this time, the detection signal generated by the electricity measuring sensor 13 is conducted to the ejection distance adjusting rod 8 through the telescopic wire 30, and is conducted to the emission port 26 through the ejection distance adjusting rod 8 and is emitted, and the reflected signal received by the reflection arc plate 6 is returned to the electricity measuring sensor 13 through the ejection distance adjusting rod 8 and the telescopic wire 30, and the electricity measuring sensor 13 performs discharge detection on the detection area based on the reflected signal.

[0089] When the installation port 34 moves, the reset spring rod 33 on the installation port 34 is stretched, and when the detection is completed and needs to be adjusted, the electromagnetic ring one and the electromagnetic ring two are both powered off, and the reset spring rod 33 is automatically contracted and reset to drive the installation port 34 to move reversely to separate the installation port 34 from the connecting port 35, thereby automatically disconnecting.

[0090] The distance measuring sensor is arranged on the adjusting frame 31, which can accurately measure the moving position of the installation port 34, so that the installation port 34 can be accurately moved to the same horizontal line of the connecting port 35 on the corresponding electricity measuring sensor 13, and the installation port 34 can be accurately connected with the connecting port 35.

[0091] The specific detection principle of the detector is as follows:

[0092] When detecting, the servo motor 11 is started to drive the driving roller 17 to rotate forward, the driving roller 17 rotates to drive the threaded push rod 20 on the driving roller 17 to rotate, and the threaded sleeve disc 19 is matched to drive the liquid pushing plate 16 to move horizontally in the liquid storage tank 10, the liquid pushing plate 16 moves to extrude the hydraulic oil in the liquid storage tank 10 to be guided out through the liquid guide pipe 14, and the control valve two 36 is opened to make the hydraulic oil in the liquid guide pipe 14 enter the liquid storage pipe 15;

[0093] The hydraulic oil in the liquid storage pipe 15 increases to drive the piston disc 21 to move, the piston disc 21 moves to drive the ejection distance adjusting rod 8 to move, the ejection distance adjusting rod 8 moves to drive the moving frame 5 to move, thereby driving the emission port 26 and the two reflection arc plates 6 on the moving frame 5 to move, and the reflection arc plates 6 move to be close to the detection area on the high-voltage distribution cabinet, and the detection preparation work is completed;

[0094] The electromagnetic ring one on the installation port 34 is matched with the electromagnetic ring two on the electricity detection sensor 13, the installation port 34 is driven to move under the cooperation of the electromagnetic ring one and the electromagnetic ring two, the installation port 34 is clamped into the connection port 35 on the electricity detection sensor 13, and the automatic connection of the installation port 34 and the connection port 35 is completed;

[0095] The electricity detection sensor 13 generates a detection signal, the detection signal is conducted to the ejection distance adjusting rod 8 through the telescopic wire 30, and the detection signal is conducted to the emission port 26 through the ejection distance adjusting rod 8 and is emitted, the reflected signal received by the reflection arc plate 6 is returned to the electricity detection sensor 13 through the ejection distance adjusting rod 8 and the telescopic wire 30, and the electricity detection sensor 13 performs discharge detection on the detection area based on the reflected signal.

[0096] The traction motor 18 is started to drive the traction roller 22 to rotate and wind the two traction ropes 23, the two traction ropes 23 are wound to pull the upper and lower reflection arc plates 6 to deflect outward around the spring shaft 25, the area of the emission and reception surface formed between the two reflection arc plates 6 is increased, the receiving area of the emission signal is increased, and the receiving strength of the reflected signal is increased.

[0097] After the last electricity detection sensor 13 is detected, the control valve two 36 is closed and the control valve one 28 is opened, so that the distribution pipe 27 is in a communication state, the servo motor 11 is driven to drive the liquid pushing plate 16 to move and extrude the hydraulic oil in the liquid storage tank 10, the hydraulic oil is injected into the distribution pipe 27 through the liquid guide pipe 14, and the hydraulic oil is injected into the adjusting box 29 through the distribution pipe 27, the hydraulic oil in the adjusting box 29 is increased, the piston plate 32 is driven to move, the adjusting frame 31 on the piston plate 32 and the reset spring rod 33 are driven to move, the installation port 34 on the reset spring rod 33 is moved to a position opposite to the next electricity detection sensor 13, the connection steps of the electricity detection sensor 13 are repeated, the next electricity detection sensor 13 is connected, and the detection of the next type of discharge phenomenon can be performed after the connection is completed.

[0098] The embodiment of the application also provides a multifunctional partial discharge live detection method for high-voltage power distribution cabinet maintenance, which is used for the multifunctional partial discharge live detection instrument for high-voltage power distribution cabinet maintenance and includes the following steps.

[0099] S1, when detection is performed, the position of the ejection distance adjusting rod 8 is adjusted through the driving assembly and the pushing assembly, and the emission assembly is pushed to the vicinity of the high-voltage power distribution cabinet;

[0100] S2, the automatic connection of the electricity detection sensor 13 is completed through the cooperation of the linkage assembly and the connection assembly in the adjusting unit;

[0101] S3, discharging detection is carried out on the equipment to be tested by transmitting the detection signal through the transmitting port 26 via the electric detection sensor 13;

[0102] S4, while discharging detection, the angle position of the two reflection arc plates 6 is adjusted by the transmitting assembly according to the signal strength, so as to increase the absorption strength of the reflection signal;

[0103] S5, after the detection is completed, the next electric detection sensor 13 is connected through the cooperation of the linkage assembly and the connecting assembly, and the steps S3-S4 are repeated to perform the detection on the equipment to be tested again.

[0104] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multifunctional partial discharge live detection instrument for high-voltage power distribution cabinet maintenance, comprising a detection box (1) for protection, characterized in that, Also include: Reflective components, set in the detection box (1) outside, which is provided with two reflection arc plate (6) for absorbing reflected detection signal, the reflection component for adjusting the angle of reflection arc plate (6) to adjust the range of absorbing reflected detection signal; Transmitting port (26), set in the reflection component, for transmitting detection signal; Detection unit, set in the detection box (1), including driving assembly and push assembly, wherein the push assembly is provided with the ejection distance adjusting rod (8), the driving assembly and the push assembly are matched to realize the movement of the ejection distance adjusting rod (8), and the position adjustment of the reflection component is realized; Adjusting unit, set in the detection box (1), including linkage assembly and connecting assembly, wherein the connecting assembly is provided with a plurality of electric sensor (13) for emitting different detection signal, the linkage assembly and the push assembly are matched to realize the position adjustment of the connecting assembly, so that the transmitting port (26) is matched with different electric sensor (13) and emits different detection signal.

2. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 1, characterized in that, The detection box (1) is provided with two hand straps (3) outside, which realizes the portable movement of the detection box (1) through the cooperation of the hand straps (3); The detection box (1) is provided with a control panel (2) outside, which controls the opening and closing and running state of the detection unit, the reflection component and the adjusting unit, realizes the automatic discharge charging detection of the equipment.

3. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 1, characterized in that, The reflection component includes a moving frame (5), the spring shaft (25) is fixedly installed on the moving frame (5), and the transmitting port (26) is arranged on the spring shaft (25). The spring shaft (25) is rotatably connected with two reflection arc plates (6), and the two sides of the two reflection arc plates (6) are fixedly connected with elastic side covers (24). The rear part of the moving frame (5) is fixedly connected with a traction motor (18), and the driving end of the traction motor (18) is fixedly connected with a traction roller (22). The traction roller (22) and the two reflection arc plates (6) are fixedly connected with a traction rope (23).

4. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 3, characterized in that, The detection box (1) is fixedly connected with a partition plate (12), the driving assembly includes a servo motor (11) fixedly connected with the partition plate (12), and the driving end of the servo motor (11) is fixedly connected with a driving roller (17). The partition plate (12) is fixedly connected with a liquid storage tank (10), and the liquid storage tank (10) is rotatably connected with the driving roller (17). The liquid storage tank (10) is provided with a moving mechanism.

5. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 4, characterized in that, The moving mechanism includes a threaded push rod (20) fixedly connected with the driving roller (17). The liquid storage tank (10) is slidably connected with a liquid pushing plate (16), the liquid pushing plate (16) is fixedly connected with a threaded sleeve (19), and the threaded sleeve (19) is threadedly connected with the threaded push rod (20). The liquid storage tank (10) and the liquid pushing plate (16) are filled with hydraulic oil.

6. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 4, characterized in that, The push assembly comprises a shielding bottom box (9) fixedly installed at the lower part of the detection box (1), a recycling box (4) fixedly installed on the shielding bottom box (9) and matched with the moving frame (5), and a liquid storage pipe (15) fixedly installed between the shielding bottom box (9) and the recycling box (4); the liquid storage pipe (15) is fixedly communicated with a liquid guide pipe (14) for conducting hydraulic oil between the liquid storage pipe (15) and a liquid storage tank (10), and the liquid guide pipe (14) is provided with a control valve two (36). The piston disc (21) is slidably installed in the liquid storage pipe (15), and the ejecting distance adjusting rod (8) is fixedly installed between the piston disc (21) and the moving frame (5); the recycling box (4) and the moving frame (5) are fixedly installed with two elastic spring rods (7) for resetting.

7. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 6, characterized in that, The linkage assembly comprises an adjusting box (29) fixedly installed at the lower part of the partition plate (12), a distribution pipe (27) fixedly communicated between the adjusting box (29) and the liquid guide pipe (14), and a control valve one (28) arranged on the distribution pipe (27); the adjusting box (29) is slidably installed with a piston plate (32), and the piston plate (32) is fixedly installed with an adjusting frame (31).

8. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 7, characterized in that, The adjusting frame (31) is fixedly installed with a reset spring rod (33), and the reset spring rod (33) is fixedly installed with a mounting port (34); the mounting port (34) and the electricity measuring sensor (13) are provided with an adsorption mechanism.

9. The multi-functional partial discharge live detection instrument for high voltage distribution cabinet maintenance according to claim 8, characterized in that, The adsorption mechanism comprises an electromagnetic ring one fixedly installed outside the mounting port (34); each electricity measuring sensor (13) is provided with a connecting port (35), and the connecting port (35) is provided with an electromagnetic ring two matched with the electromagnetic ring one; the mounting port (34) and the ejecting distance adjusting rod (8) are provided with an elastic conductor (30) for conducting detection signals.

10. The method for multi-functional partial discharge live detection for high voltage switchgear maintenance, used in the multi-functional partial discharge live detection instrument for high voltage switchgear maintenance according to any one of claims 1-9, characterized in that, The method comprises the following steps: S1, when detecting, first adjust the position of the ejecting distance adjusting rod (8) through the cooperation of the driving assembly and the push assembly, and push the emitting assembly to the vicinity of the high-voltage distribution cabinet; S2, complete the automatic connection of the electricity measuring sensor (13) through the cooperation of the linkage assembly and the connecting assembly in the adjusting unit; S3, emit detection signals through the electricity measuring sensor (13) via the emitting port (26) to perform discharge detection on the equipment to be tested; S4, while performing discharge detection, adjust the angle position of the two reflecting arc plates (6) through the emitting assembly according to the signal strength to increase the absorption strength of the reflected signals; S5, after the detection is completed, connect the next electricity measuring sensor (13) through the cooperation of the linkage assembly and the connecting assembly, and then repeat steps S3-S4 to perform re-detection on the equipment to be tested.

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