Intelligent gas-insulated switchgear gas tank capable of being monitored on line

Abstract

The invention provides an intelligent gas-insulated switchgear gas tank capable of being monitored on line, and relates to the technical field of power equipment, the intelligent gas-insulated switchgear gas tank comprises a gas tank and a circuit breaker isolation grounding three-position switch body, the circuit breaker isolation grounding three-position switch body is arranged in the gas tank, and the circuit breaker isolation grounding three-position switch body is arranged in the gas tank. The front side of the air box is provided with a circuit breaker operating mechanism and an isolation grounding three-position switch operating mechanism which are connected with the circuit breaker isolation grounding three-position switch body. A grounding contact and an isolation static contact are arranged on the circuit breaker isolation grounding three-position switch body; a camera is arranged at one end below the front side of the gas tank; according to the invention, the embedded temperature sensor, the tuning fork type temperature sensor, the camera and the gas density meter are directly installed and integrated on the components in the gas box of the ring main unit to directly monitor the operation state of the ring main unit, and potential fault factors of the ring main unit can be found through monitoring, so that the risk of faults or safety accidents is reduced, and the reliability of the ring main unit is improved. The working efficiency is improved, personnel configuration is saved, and unattended operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to an intelligent gas box of an inflatable cabinet capable of online monitoring. Background Art

[0002] Ring main unit is a group of high-voltage switchgear, usually installed in a metal or non-metallic insulating cabinet. Its core part uses load switches and fuses. It is mainly used in the ring network power supply system to achieve the control and protection of the distribution ring network. It has the advantages of simple structure, small size, low price, and can improve power supply parameters and performance as well as power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises; The ring main unit is a vital equipment in the power distribution system. The stability and safety of its operating status directly affect the operating efficiency and safety of the power grid. The traditional operation and maintenance method of the ring main unit relies on manual inspections and regular inspections, which makes it difficult to detect and handle potential faults in a timely manner, resulting in high maintenance costs and high risks of power outages. It cannot meet the safe operation requirements of modern power grids. Therefore, the present invention proposes an intelligent inflatable cabinet gas box that can be monitored online to solve the problems existing in the prior art. Summary of the invention

[0003] In response to the above problems, the present invention proposes an intelligent gas cabinet air box that can be monitored online. The intelligent gas cabinet air box that can be monitored online can directly monitor the operating status. Through monitoring, potential failure factors of the ring network cabinet can be discovered, thereby reducing the risk of failures or safety accidents, improving work efficiency, saving personnel configuration, and realizing unmanned operation.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: an intelligent inflatable cabinet gas box capable of online monitoring, comprising a gas box and a circuit breaker isolation and grounding three-position switch body, wherein the circuit breaker isolation and grounding three-position switch body is arranged inside the gas box, and a circuit breaker operating mechanism connected to the circuit breaker isolation and grounding three-position switch body and an isolation and grounding three-position switch operating mechanism are arranged on the front side of the gas box; The circuit breaker isolation and grounding three-position switch body is provided with a grounding contact and an isolation static contact, a camera is provided at one end below the front side of the gas box, the shooting end of the camera faces the grounding contact, an embedded temperature sensor is provided on the isolation static contact, the upper and lower parts of the circuit breaker isolation and grounding three-position switch body are respectively connected with an upper busbar and a lower busbar, and tuning fork temperature sensors are provided at the connection between the upper busbar, the lower busbar and the circuit breaker isolation and grounding three-position switch body, a wireless temperature measurement receiving antenna and a gas density meter are provided above the front side of the gas box, and the wireless temperature measurement receiving antenna is electrically connected to the embedded temperature sensor and the tuning fork temperature sensor.

[0005] A further improvement is that side expansion sleeves are provided above both ends of the air box, and the upper end of the upper busbar is connected to the side expansion sleeve.

[0006] A further improvement is that a lower outlet bushing is provided below the front side of the air box, and the lower end of the lower outlet busbar is connected to the lower outlet bushing.

[0007] A further improvement is that: the upper busbars and the side expansion bushings are each provided with at least six groups, and the lower bushings and the lower busbars are each provided with at least three groups.

[0008] A further improvement is that an inflation interface is provided above the front side of the air box, and the inflation interface is connected to a gas density meter, and the gas density meter is used to monitor the gas pressure and trace water in the air box.

[0009] A further improvement is that a temperature sensor signal transmission hole is provided on the air box below the inflation interface, a sheet metal pressure plate is installed on the temperature sensor signal transmission hole through a plexiglass plate and a sealing ring, and the wireless temperature measurement receiving antenna is installed on the outside of the sheet metal pressure plate.

[0010] A further improvement is that a camera mounting hole is provided at the lower part of the front side of the air box, and a camera perspective window is provided on the camera mounting hole, a rectangular groove is provided on the inner side of the camera perspective window, and the camera is arranged inside the rectangular groove.

[0011] A further improvement is that both the camera and the gas density meter are equipped with a communication remote transmission chip for wireless communication data transmission.

[0012] A further improvement is that the isolation and grounding three-position switch operating mechanism includes a first motor, an isolation switch operating shaft, a second motor and a grounding switch operating shaft, the output end of the first motor is connected to the isolation switch operating shaft, and the output end of the second motor is connected to the grounding switch operating shaft.

[0013] A further improvement is that the first motor is used to drive the operating shaft of the disconnector to rotate for closing and opening operations, and the second motor is used to drive the operating shaft of the grounding switch to rotate for closing and opening operations.

[0014] The beneficial effects of the present invention are: 1. The present invention directly installs and integrates the embedded temperature sensor, tuning fork temperature sensor, camera, and gas density meter on the gas box inner components of the ring network cabinet to directly monitor the operating status of the ring network cabinet. Through monitoring, potential failure factors of the ring network cabinet can be discovered, reducing the risk of failures or safety accidents, improving work efficiency, saving personnel configuration, and realizing unmanned operation.

[0015] 2. The present invention realizes real-time monitoring of the temperature of the main bus, the gas pressure value of the gas box, the micro-water value, the switch break position and other states when the ring main unit is in operation, provides basic conditions for the intelligent analysis and remote control of the ring main unit, and effectively improves the operating efficiency and safety of the power system.

[0016] 3. In the present invention, tuning fork-type temperature sensors are used for monitoring on multiple upper and lower busbars, and embedded temperature sensors are used to monitor the isolated static contacts, thereby realizing multi-point temperature monitoring. The temperatures of multiple points are collected through wireless temperature measurement receiving antennas, which is convenient for data collection. The camera and gas density meter are both equipped with built-in communication remote transmission chips, which is convenient for remote data collection, more convenient to use, and diversified in functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the outer structure of the air box of the present invention; Figure 2 It is a schematic diagram of the internal structure of the air box of the present invention; Figure 3 It is a schematic diagram of the structure of the circuit breaker isolation and grounding three-position switch body of the present invention; Figure 4 It is a schematic diagram of the embedded temperature sensor of the present invention; Figure 5 It is a schematic diagram of the air box of the present invention; Figure 6 This is a schematic diagram of a camera perspective window of the present invention; Figure 7 A schematic diagram of a camera of the present invention; Figure 8 It is a schematic diagram of the operating mechanism of the isolation and grounding three-position switch of the present invention.

[0018] Among them: 1. Gas box; 2. Circuit breaker isolation and grounding three-position switch body; 3. Circuit breaker operating mechanism; 4. Isolation and grounding three-position switch operating mechanism; 5. Camera; 6. Embedded temperature sensor; 7. Upper busbar; 8. Lower busbar; 9. Tuning fork temperature sensor; 10. Wireless temperature measurement receiving antenna; 11. Gas density meter; 12. Side expansion sleeve; 13. Lower sleeve; 14. Inflating interface; 15. Temperature sensor signal transmission hole; 16. Camera installation hole; 17. Camera perspective window; 18. Rectangular groove; 19. First motor; 20. Isolation switch operating shaft; 21. Second motor; 22. Grounding switch operating shaft; 23. Grounding contact; 24. Isolation static contact. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Embodiment 1 according to Figure 1 , 2 , 3, 4, 5, 6, 7, and 8, this embodiment proposes an intelligent inflatable cabinet gas box that can be monitored online, including a gas box 1 and a circuit breaker isolation and grounding three-position switch body 2, the circuit breaker isolation and grounding three-position switch body 2 is arranged inside the gas box 1, and the front side of the gas box 1 is provided with a circuit breaker operating mechanism 3 connected to the circuit breaker isolation and grounding three-position switch body 2 and an isolation and grounding three-position switch operating mechanism 4; The circuit breaker isolation and grounding three-position switch body 2 is provided with a grounding contact 23 and an isolation static contact 24, a camera 5 is provided at one end below the front side of the gas box 1, the shooting end of the camera 5 faces the grounding contact 23, and an embedded temperature sensor 6 is provided on the isolation static contact 24. The upper and lower parts of the circuit breaker isolation and grounding three-position switch body 2 are respectively connected with an upper busbar 7 and a lower busbar 8, and a tuning fork temperature sensor 9 is provided at the connection between the upper busbar 7, the lower busbar 8 and the circuit breaker isolation and grounding three-position switch body 2. A wireless temperature measurement receiving antenna 10 and a gas density meter 11 are provided above the front side of the gas box 1, and the wireless temperature measurement receiving antenna 10 is electrically connected to the embedded temperature sensor 6 and the tuning fork temperature sensor 9.

[0021] Side expansion sleeves 12 are provided above both ends of the gas box 1, and the upper end of the upper busbar 7 is connected to the side expansion sleeve 12. Lower sleeves 13 are provided below the front side of the gas box 1, and the lower end of the lower busbar 8 is connected to the lower sleeve 13. Six groups of upper busbars and side expansion sleeves 12 are provided, and three groups of lower sleeves 13 and lower busbars 8 are provided. Tuning fork temperature sensors 9 are provided on multiple upper busbars 7 and lower busbars 8 for monitoring, and embedded temperature sensors 6 monitor the isolated static contacts 24, thereby realizing multi-point temperature monitoring. The embedded temperature sensor 6 is a passive wireless temperature sensor with the characteristics of wide temperature measurement range, high accuracy, long reading distance, and easy installation. It is not affected by high voltage and can withstand 42kV / min power frequency withstand voltage. The tuning fork temperature sensor 9 is a passive wireless temperature sensor with the characteristics of wide temperature measurement range, high accuracy, long reading distance and easy installation. It is not affected by high voltage and can withstand 42kV / min power frequency withstand voltage.

[0022] An air charging interface 14 is provided on the upper front side of the air box 1, and the air charging interface 14 is connected to a gas density meter 11, and the gas density meter 11 is used to monitor the gas pressure and water content in the air box 1. It also has a remote communication function.

[0023] A temperature sensor signal transmission hole 15 is provided on the air box 1 below the inflation interface 14. The temperature sensor signal transmission hole 15 is installed with a sheet metal pressing plate through an organic glass plate and a sealing ring, and the wireless temperature measurement receiving antenna 10 is installed on the outside of the sheet metal pressing plate. The wireless temperature measurement receiving antenna 10 is used to collect the temperature of multiple temperature sensors in the air box 1; 3 for each of the A / B / C phases of the upper busbar 7 and the lower busbar 8, which is convenient for data collection.

[0024] A camera mounting hole 16 is provided at the lower part of the front side of the gas box 1, and a camera perspective window 17 is provided on the camera mounting hole 16. A rectangular groove 18 is provided inside the camera perspective window 17, and the camera 5 is arranged inside the rectangular groove 18. The camera 5 is directly opposite to the grounding contact 23, and is used to monitor the grounding position of the circuit breaker isolation grounding three-position switch body 2 in real time; the camera 5 has a communication remote transmission function.

[0025] The camera 5 and the gas density meter 11 are both equipped with a communication remote transmission chip for wireless communication data transmission. The camera 5 and the gas density meter 11 are both equipped with a communication remote transmission chip for convenient remote data collection, more convenient use, and diversified functions.

[0026] Embodiment 2 according to Figure 1 , 2 , 3, 4, 5, 6, 7, and 8, this embodiment proposes an intelligent inflatable cabinet gas box that can be monitored online, including a gas box 1 and a circuit breaker isolation and grounding three-position switch body 2, the circuit breaker isolation and grounding three-position switch body 2 is arranged inside the gas box 1, and the front side of the gas box 1 is provided with a circuit breaker operating mechanism 3 connected to the circuit breaker isolation and grounding three-position switch body 2 and an isolation and grounding three-position switch operating mechanism 4; The circuit breaker isolation and grounding three-position switch body 2 is provided with a grounding contact 23 and an isolation static contact 24, a camera 5 is provided at one end below the front side of the gas box 1, the shooting end of the camera 5 faces the grounding contact 23, and an embedded temperature sensor 6 is provided on the isolation static contact 24. The upper and lower parts of the circuit breaker isolation and grounding three-position switch body 2 are respectively connected with an upper busbar 7 and a lower busbar 8, and a tuning fork temperature sensor 9 is provided at the connection between the upper busbar 7, the lower busbar 8 and the circuit breaker isolation and grounding three-position switch body 2. A wireless temperature measurement receiving antenna 10 and a gas density meter 11 are provided above the front side of the gas box 1, and the wireless temperature measurement receiving antenna 10 is electrically connected to the embedded temperature sensor 6 and the tuning fork temperature sensor 9.

[0027] The isolating and grounding three-position switch operating mechanism 4 includes a first motor 19, an isolating switch operating shaft 20, a second motor 21 and a grounding switch operating shaft 22. The output end of the first motor 19 is connected to the isolating switch operating shaft 20, and the output end of the second motor 21 is connected to the grounding switch operating shaft 22. The first motor 19 is used to drive the isolating switch operating shaft 20 to rotate and close and open the switch, and the second motor 21 is used to drive the grounding switch operating shaft 22 to rotate and close and open the switch. Used for the rotary closing and opening operation of the ring network cabinet. The online monitoring solution applied by this product is not limited to this type of gas box 1 cabinet, but is also applicable to metal-enclosed switchgear such as SF6 gas cabinets and normal pressure sealed cabinets.

[0028] This product integrates temperature sensors, gas density meters 11, and cameras 5 to realize real-time monitoring of the temperature of the main bus, the gas pressure value of the gas tank 1, the micro-water value, the switch break position and other states when the ring main unit is in operation, providing the basic conditions for intelligent analysis and remote control of the ring main unit, and effectively improving the operating efficiency and safety of the power system.

[0029] The present invention directly installs and integrates the embedded temperature sensor 6, tuning fork temperature sensor 9, camera 5, and gas density meter 11 on the inner part of the gas box 1 of the ring network cabinet to directly monitor the operating status of the ring network cabinet. Through monitoring, the potential fault factors of the ring network cabinet can be found, reducing the risk of faults or safety accidents, improving work efficiency, saving personnel configuration, and realizing unmanned operation. In addition, tuning fork temperature sensors 9 are provided on multiple upper busbars 7 and lower busbars 8 for monitoring, and embedded temperature sensors 6 monitor the isolated static contacts 24, thereby realizing multi-point temperature monitoring. The temperature of multiple points is collected through the wireless temperature measurement receiving antenna 10, which is convenient for data collection. The camera 5 and the gas density meter 11 are both built-in with communication remote transmission chips, which are convenient for remote data collection, more convenient to use, and diversified functions.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent inflatable cabinet gas box capable of online monitoring, comprising a gas box (1) and a circuit breaker isolation and grounding three-position switch body (2), characterized in that: The circuit breaker isolation and grounding three-position switch body (2) is arranged inside the gas box (1), and the front side of the gas box (1) is provided with a circuit breaker operating mechanism (3) connected to the circuit breaker isolation and grounding three-position switch body (2) and an isolation and grounding three-position switch operating mechanism (4); The circuit breaker isolation and grounding three-position switch body (2) is provided with a grounding contact (23) and an isolation static contact (24); a camera (5) is provided at one end below the front side of the gas box (1); the shooting end of the camera (5) faces the grounding contact (23); an embedded temperature sensor (6) is provided on the isolation static contact (24); the upper and lower parts of the circuit breaker isolation and grounding three-position switch body (2) are respectively connected to an upper busbar (7) and a lower busbar (8); and tuning fork-type temperature sensors (9) are provided at the connection points between the upper busbar (7), the lower busbar (8) and the circuit breaker isolation and grounding three-position switch body (2); a wireless temperature measurement receiving antenna (10) and a gas density meter (11) are provided above the front side of the gas box (1); and the wireless temperature measurement receiving antenna (10) is electrically connected to the embedded temperature sensor (6) and the tuning fork-type temperature sensor (9).

2. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 1 is characterized in that: Side expansion sleeves (12) are provided above both ends of the air box (1), and the upper end of the upper outlet busbar (7) is connected to the side expansion sleeve (12).

3. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 2 is characterized in that: A lower outlet bushing (13) is provided below the front side of the air box (1), and the lower end of the lower outlet busbar (8) is connected to the lower outlet bushing (13).

4. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 3 is characterized in that: The upper busbars and the side expansion bushings (12) are each provided with at least six groups, and the lower bushings (13) and the lower busbars (8) are each provided with at least three groups.

5. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 1 is characterized in that: An air charging interface (14) is provided above the front side of the air box (1), and the air charging interface (14) is connected to a gas density meter (11), and the gas density meter (11) is used to monitor the gas pressure and water content in the air box (1).

6. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 4 is characterized in that: A temperature sensor signal transmission hole (15) is provided on the air box (1) below the inflation interface (14); a sheet metal pressure plate is installed on the temperature sensor signal transmission hole (15) through a plexiglass plate and a sealing ring; and the wireless temperature measurement receiving antenna (10) is installed on the outside of the sheet metal pressure plate.

7. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 5 is characterized in that: A camera mounting hole (16) is provided at the lower portion of the front side of the air box (1), and a camera perspective window (17) is provided on the camera mounting hole (16). A rectangular groove (18) is provided on the inner side of the camera perspective window (17), and the camera (5) is arranged inside the rectangular groove (18).

8. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 6 is characterized in that: The camera (5) and the gas density meter (11) are both equipped with a communication remote transmission chip for wireless communication data transmission.

9. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 1 is characterized in that: The isolating and grounding three-position switch operating mechanism (4) comprises a first motor (19), an isolating switch operating shaft (20), a second motor (21) and an grounding switch operating shaft (22), wherein the output end of the first motor (19) is connected to the isolating switch operating shaft (20), and the output end of the second motor (21) is connected to the grounding switch operating shaft (22).

10. The intelligent inflatable cabinet gas box capable of online monitoring according to claim 9, characterized in that: The first motor (19) is used to drive the isolating switch operating shaft (20) to rotate for closing and opening operations, and the second motor (21) is used to drive the earthing switch operating shaft (22) to rotate for closing and opening operations.

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