High-voltage cable health state monitoring system

Abstract

The utility model discloses a high-voltage cable health state monitoring system, and relates to the field of electrical safety monitoring, the high-voltage cable health state monitoring system comprises a high-voltage cable, a worker places second mounting plates on two sides of the high-voltage cable respectively, and two first mounting plates are fixed by externally connecting fastening bolts to threaded holes at the upper ends of limiting blocks; the second mounting plate and the second mounting plate are attached to the high-voltage cable, various functions of the high-voltage cable are monitored through a temperature measurement sensor, a water immersion sensor, a vibration sensor and a current sensor which are arranged on the inner side wall of the second mounting plate, and parameters such as temperature, water immersion, vibration and current are monitored. The abnormal state of the high-voltage cable can be found in time, so that potential safety risks are avoided, and the safety of personnel and equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of electrical safety monitoring, in particular to a high-voltage cable health status monitoring system. Background Art

[0002] With the development of the power system, high-voltage cables are more and more widely used in power transmission and distribution networks. Their operating status has an important impact on the operating stability of the power transmission and distribution system. The health status of the high-voltage cables can be analyzed and judged by monitoring the cable operation data. The health status detection of high-voltage cables is very important, because damage or failure of the cables may cause failure of the power system, and even cause fire or other safety accidents. Therefore, those skilled in the art provide a high-voltage cable health status monitoring system to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a high voltage cable health status monitoring system to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-voltage cable health status monitoring system comprises a high-voltage cable, a monitoring mechanism and a protective mechanism, wherein a cable connector is arranged on a side wall at one end of the high-voltage cable, a pair of second mounting plates are arranged on an outer wall of the high-voltage cable one meter away from the cable connector, a fixing block is arranged on the inner side of each of the second mounting plates, a temperature protection box is arranged inside the fixing block, a monitoring mechanism is arranged between the second mounting plates, a control panel is arranged at one end of the monitoring mechanism, and a protective mechanism is arranged inside the temperature protection box.

[0006] As a further solution of the utility model: a first mounting plate is provided at the other end of the fixed block, and the first mounting plate is fixedly connected to the temperature protection box; a fixed block is fixedly connected between each end surface of the first mounting plate and the second mounting plate; the first mounting plate and the second mounting plate are fixedly connected with limiting blocks at both upper and lower ends; a plurality of threaded holes are provided in the limit blocks, and the limit blocks are movably connected with each other by threaded fastening bolts connected through the threaded holes.

[0007] As a further solution of the utility model: an output pipe is arranged inside the fixed block, a liquid nitrogen nozzle is arranged at one end of the output pipe away from the fixed block, a vibration sensor is arranged at the top of the side wall of one end of the second mounting plate close to the high-voltage cable, a current sensor is arranged inside the second mounting plate, a water immersion sensor is arranged at the bottom end of the side wall of one end of the second mounting plate close to the high-voltage cable, a temperature measurement sensor is arranged at one end of the water immersion sensor close to the liquid nitrogen nozzle, and an alarm is fixedly connected to the upper end of one end of the first mounting plate.

[0008] As a further solution of the utility model: a bottom plate is provided at the bottom end of the temperature protection box, a sliding rod is fixedly connected to the center of the upper end of the bottom plate, the other end of the sliding rod is fixedly connected to the top plate, a liquid nitrogen box is provided at one end of the top plate close to the liquid nitrogen nozzle, a liquid nitrogen box switch is provided at the bottom of the liquid nitrogen box, the liquid nitrogen box nozzle is located in the output pipeline, a balance plate is provided at the center of the outer wall of the sliding rod, the sliding rod and the balance plate are sleeved and connected, EVA wax is fixedly connected to the left and right sides of the bottom end of the balance plate, and a reset spring is sleeved and connected to the outer wall of the sliding rod between the balance plate and the bottom plate.

[0009] As a further solution of the utility model: the liquid nitrogen box is of detachable design, and the liquid nitrogen box needs to be disassembled and replenished with liquid nitrogen after use.

[0010] As a further solution of the utility model: a central processing unit is arranged in the control panel, the central processing unit is electrically connected to the temperature measurement sensor, the water immersion sensor, the vibration sensor and the current sensor, and the central processing unit is electrically connected to the alarm.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: since the utility model is provided with a monitoring mechanism, by monitoring parameters such as temperature, water immersion, vibration and current, the abnormal state of the high-voltage cable can be discovered in time, thereby avoiding potential safety risks and ensuring the safety of personnel and equipment; by real-time monitoring of the cable status, the abnormal situation of the cable can be discovered in advance, so that it can be repaired or replaced in time, avoiding power outages or other accidents caused by equipment failure, reducing maintenance costs and maintenance time; by connecting various sensors and a central processing unit, the various parameters of the cable can be monitored in real time and timely fed back to the control panel, ensuring that the staff can understand the status of the cable at any time, and the alarm signal can be sent out in real time through the alarm, and different colors of lights can be emitted according to the abnormal conditions of different sensors, so that the staff can quickly and accurately judge the abnormal state of the cable and take corresponding countermeasures.

[0012] Due to the protection mechanism, the spray of liquid nitrogen can quickly reduce the temperature of the high-voltage cable, effectively avoiding cable damage or equipment failure caused by excessive temperature. Compared with traditional cooling methods, liquid nitrogen has a higher cooling speed and can reduce the temperature to a safe range in a short time. Liquid nitrogen is a colorless, odorless, non-toxic gas. During the spraying process, it will not pollute the environment or cause any damage to the cable itself, which meets environmental protection requirements. Liquid nitrogen spray can directly act on the surface of the high-voltage cable without the need for heat transfer through a medium. It can quickly and effectively reduce the cable temperature and improve the cooling efficiency. The utility model relates to a high-voltage cable health status monitoring system. The utility model is simple and reasonable in structure design and is convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The figure is a structural diagram of a high voltage cable health status monitoring system.

[0014] Figure 2 It is a structural schematic diagram of a monitoring mechanism in a high-voltage cable health status monitoring system.

[0015] Figure 3 It is a schematic diagram of the front cross-sectional structure of a monitoring mechanism in a high-voltage cable health status monitoring system.

[0016] Figure 4 This is a schematic diagram of the enlarged structure at point A in a high-voltage cable health status monitoring system.

[0017] In the figure: 1-high voltage cable, 2-cable connector, 3-control panel, 4-alarm, 5-first mounting plate, 6-second mounting plate, 7-limit block, 8-fixed block, 9-output pipe, 10-temperature protection box, 11-temperature measurement sensor, 12-water immersion sensor, 13-vibration sensor, 14-current sensor, 15-bottom plate, 16-slide bar, 17-reset spring, 18-balance plate, 19-EVA wax, 20-top plate, 21-liquid nitrogen box, 22-liquid nitrogen box switch, 23-liquid nitrogen nozzle. DETAILED DESCRIPTION

[0018] See also Figures 1 to 4In an embodiment of the utility model, a high-voltage cable health status monitoring system includes a high-voltage cable 1, a cable connector 2, a control panel 3, an alarm 4, a first mounting plate 5, a second mounting plate 6, a limit block 7, a fixed block 8, a telescopic rod 9, a temperature protection box 10, a temperature measurement sensor 11, a water immersion sensor 12, a vibration sensor 13, a current sensor 14, a bottom plate 15, a slide bar 16, a reset spring 17, a balance plate 18, an EVA wax 19, a top plate 20, a liquid nitrogen box 21, a liquid nitrogen box switch 22, and a liquid nitrogen nozzle 23; a cable connector 2 is provided on one end side wall of the high-voltage cable 1, a pair of second mounting plates 6 are provided on the outer side wall of the high-voltage cable 1 one meter away from the cable connector 2, and a fixed Block 8, a temperature protection box 10 is arranged inside the fixed block 8, a monitoring mechanism is arranged between the second mounting plate 6 and the second mounting plate 6, a control panel 3 is arranged at one end of the monitoring mechanism, and a protection mechanism is arranged in the temperature protection box 10, and a first mounting plate 5 is arranged at the other end of the fixed block 8, and the first mounting plate 5 and the temperature protection box 10 are fixedly connected, and a fixed block 8 is fixedly connected between each end surface of the first mounting plate 5 and the second mounting plate 6, and the upper and lower ends of the first mounting plate 5 and the second mounting plate 6 are fixedly connected with a limiting block 7, and a plurality of threaded holes are arranged in the limiting block 7, and the limiting blocks 7 are movably connected to the limiting blocks 7 by threaded connection fastening bolts through the threaded holes, and an output pipe 9 is arranged inside the fixed block 8, and the output pipe 9 is provided with a liquid nitrogen nozzle 23 at one end away from the fixed block 8, a vibration sensor 13 is provided at the top of the side wall of the second mounting plate 6 close to the high-voltage cable 1, a current sensor 14 is provided inside the second mounting plate 6, a water immersion sensor 12 is provided at the bottom of the side wall of the second mounting plate 6 close to the high-voltage cable 1, and a temperature measurement sensor 11 is provided at the end of the water immersion sensor 12 close to the liquid nitrogen nozzle 23, an alarm 4 is fixedly connected to the upper end of the first mounting plate 5 at one end, a bottom plate 15 is provided at the bottom end of the temperature protection box 10, a sliding rod 16 is fixedly connected to the center position of the upper end of the bottom plate 15, and the other end of the sliding rod 16 is fixedly connected to the top plate 20, and a liquid nitrogen box 2 is provided at the end of the top plate 20 close to the liquid nitrogen nozzle 23. 1, a liquid nitrogen box switch 22 is provided at the bottom of the liquid nitrogen box 21, the nozzle of the liquid nitrogen box 21 is located in the output pipe 9, a balance plate 18 is provided at the center of the outer wall of the slide bar 16, the slide bar 16 and the balance plate 18 are sleeved and connected, the left and right sides of the bottom of the balance plate 18 are fixedly connected with EVA wax 19, the outer wall of the slide bar 16 between the balance plate 18 and the bottom plate 15 is sleeved and connected with a reset spring 17, the liquid nitrogen box 21 is detachable, and the liquid nitrogen box 21 needs to be disassembled and replenished with liquid nitrogen after use, a central processing unit is provided in the control panel 3, the central processing unit is electrically connected to the temperature measurement sensor 11, the water immersion sensor 12, the vibration sensor 13 and the current sensor 14, and the central processing unit is electrically connected to the alarm 4.

[0019] The working principle of the utility model is as follows: the staff place the second mounting plate 6 and the second mounting plate 6 on both sides of the high-voltage cable 1 respectively, and fix the two first mounting plates 5 by externally fastening bolts to the threaded holes at the upper ends of the limit blocks 7, so that the second mounting plates 6 and the second mounting plates 6 fit the high-voltage cable 1, and monitor the various functions of the high-voltage cable 1 through the temperature measurement sensor 11, the water immersion sensor 12, the vibration sensor 13, and the current sensor 14 arranged on the inner wall of the second mounting plate 6, the central processing unit is electrically connected to the temperature measurement sensor 11, the water immersion sensor 12, the vibration sensor 13 and the current sensor 14, and the central processing unit is electrically connected to the alarm 4, so that when the temperature When the measuring sensor 11, the water immersion sensor 12, the vibration sensor 13 and the current sensor 14 detect an abnormality, each sensor senses the environment or the state of the object and converts it into an electrical signal. The central processing unit can collect these signals by connecting various sensors, convert them into digital data, and further process and analyze them. The results of the processing and analysis are displayed through the control panel 3, and the signal is transmitted to the alarm in real time, so that the alarm can send a real-time alarm to warn the staff. Different sensor abnormalities will cause the alarm to light up different colors. The temperature measuring sensor 11 is red, the water immersion sensor 12 is blue, the vibration sensor 13 is purple, and the current sensor 14 is yellow.The conventional threshold of the temperature of the high-voltage cable 1 is a controllable threshold. When the temperature of the high-voltage cable 1 is higher than the conventional threshold, the EVA wax 19 arranged inside the temperature protection box 10 will melt. After melting, the weights of the two ends of the balance plate 18 are different, and the balance can no longer be maintained. The force exerted on the reset spring 17 at the bottom of the slide bar 16 is reduced. Through the characteristics of the reset spring 17, the balance plate 18 can be lifted up so that the balance plate 18 touches the liquid nitrogen box switch 22 at the bottom of the top plate 20. The liquid nitrogen box switch 22 controls the liquid nitrogen box 21 to continuously spray liquid nitrogen to the high-voltage cable 1 through the liquid nitrogen nozzle 23 to perform emergency cooling of the high-voltage cable 1. The utility model is provided with a monitoring mechanism. By monitoring parameters such as temperature, water immersion, vibration and current, the abnormal state of the high-voltage cable 1 can be discovered in time, thereby avoiding potential safety risks and ensuring the safety of personnel and equipment. By monitoring the cable state in real time, the abnormal situation of the cable can be discovered in advance, so as to carry out maintenance or replacement in time, avoid power outages or other accidents caused by equipment failure, reduce maintenance costs and maintenance time, and can be realized by connecting various sensors and a central processor. Monitor various parameters of the cable in real time, and feed back to the control panel 3 in time, so that the staff can understand the status of the cable at any time, send out alarm signals in real time through the alarm, and send out lights of different colors according to the abnormal conditions of different sensors, so that the staff can quickly and accurately judge the abnormal state of the cable and take corresponding countermeasures. Because of the protection mechanism, the spraying of liquid nitrogen can quickly reduce the temperature of the high-voltage cable 1, effectively avoiding cable damage or equipment failure caused by excessive temperature. Compared with the traditional cooling method, liquid nitrogen has a higher cooling speed and can reduce the temperature to a safe range in a short time. Liquid nitrogen is a colorless, odorless, non-toxic gas. It will not pollute the environment during the spraying process, nor will it cause any damage to the cable itself, which meets environmental protection requirements. Liquid nitrogen spray can directly act on the surface of the high-voltage cable 1, without the need for heat transfer through the medium, and can quickly and effectively reduce the cable temperature and improve the cooling efficiency. The utility model relates to a high-voltage cable health status monitoring system. The utility model is simple and reasonable in structure design and convenient and quick to use. ;

[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-voltage cable health status monitoring system, comprising a high-voltage cable (1), a monitoring mechanism and a protection mechanism, characterized in that: A cable connector (2) is arranged on a side wall at one end of the high-voltage cable (1); a pair of second mounting plates (6) are arranged on an outer wall of the high-voltage cable (1) one meter away from the cable connector (2); a fixing block (8) is arranged on the inner side of each of the second mounting plates (6); a temperature protection box (10) is arranged inside the fixing block (8); a monitoring mechanism is arranged between the second mounting plates (6); a control panel (3) is arranged at one end of the monitoring mechanism; and a protection mechanism is arranged inside the temperature protection box (10).

2. A high voltage cable health status monitoring system according to claim 1, characterized in that: The monitoring mechanism comprises an alarm (4), a first mounting plate (5), a limit block (7), a fixed block (8), an output pipe (9), a temperature measurement sensor (11), a water immersion sensor (12), a vibration sensor (13), a current sensor (14), and a liquid nitrogen nozzle (23); the other end of the fixed block (8) is provided with a first mounting plate (5), and the first mounting plate (5) is fixedly connected to the temperature protection box (10).

3. A high voltage cable health status monitoring system according to claim 2, characterized in that: The first mounting plate (5) and the second mounting plate (6) are fixedly connected with a fixing block (8) between their end faces, and the upper and lower ends of the first mounting plate (5) and the second mounting plate (6) are fixedly connected with a limiting block (7), and a plurality of threaded holes are arranged in the limiting block (7), and the limiting blocks (7) are movably connected with each other by threadedly connecting fastening bolts through the threaded holes.

4. A high voltage cable health status monitoring system according to claim 1, characterized in that: The fixed blocks (8) are provided with output pipes (9) inside, and the ends of the output pipes (9) away from the fixed blocks (8) are provided with liquid nitrogen nozzles (23). A vibration sensor (13) is provided at the top of the side wall of the second mounting plate (6) close to the high-voltage cable (1). A current sensor (14) is provided inside the second mounting plate (6). A water immersion sensor (12) is provided at the bottom of the side wall of the second mounting plate (6) close to the high-voltage cable (1). A temperature measurement sensor (11) is provided at the end of the water immersion sensor (12) close to the liquid nitrogen nozzle (23). An alarm (4) is fixedly connected to the upper end of the first mounting plate (5) at one end.

5. A high voltage cable health status monitoring system according to claim 2, characterized in that: The protection mechanism comprises a bottom plate (15), a slide bar (16), a return spring (17), a balance plate (18), an EVA wax (19), a top plate (20), a liquid nitrogen box (21), and a liquid nitrogen box switch (22). The bottom end of the temperature protection box (10) is provided with a bottom plate (15), the center position of the upper end of the bottom plate (15) is fixedly connected with a slide bar (16), the other end of the slide bar (16) is fixedly connected with a top plate (20), one end of the top plate (20) close to the liquid nitrogen nozzle (23) is provided with a liquid nitrogen box (21), the bottom end of the liquid nitrogen box (21) is provided with a liquid nitrogen box switch (22), and the nozzle of the liquid nitrogen box (21) is located in the output pipeline (9).

6. A high voltage cable health status monitoring system according to claim 5, characterized in that: A balance plate (18) is arranged at the center of the outer side wall of the slide bar (16), the slide bar (16) and the balance plate (18) are sleeved and connected, the left and right sides of the bottom end of the balance plate (18) are fixedly connected with EVA wax (19), and the outer side wall of the slide bar (16) between the balance plate (18) and the bottom plate (15) is sleeved and connected with a return spring (17).

7. A high voltage cable health status monitoring system according to claim 5, characterized in that: The liquid nitrogen box (21) is of detachable design, and the liquid nitrogen box (21) needs to be disassembled to replenish liquid nitrogen after use.

8. A high voltage cable health status monitoring system according to claim 1, characterized in that: The control panel (3) is provided with a central processing unit, the central processing unit is electrically connected to the temperature measurement sensor (11), the water immersion sensor (12), the vibration sensor (13) and the current sensor (14), and the central processing unit is electrically connected to the alarm (4).

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