Intelligent monitoring and early warning device for environment-friendly gas ring main unit

Abstract

The invention discloses an intelligent monitoring and early warning device for an environment-friendly gas ring main unit, and relates to the technical field of environment-friendly gas ring main units, the intelligent monitoring and early warning device comprises a cabinet body, an operation table and a data acquisition module, the front surface of the cabinet body is provided with a box door through a hinge, and the front surface of the box door is provided with the operation table; and the operation table comprises a data acquisition module, a touch display screen and a data processing module. Through the data acquisition module, the data processing module, the early warning module, the data transmission module and the PLC, intelligent processing and emergency response can be carried out in the ring main unit, the effect of comprehensively improving the operation and maintenance efficiency and safety is further achieved, early warning can be rapidly carried out when related abnormal data is acquired, and the safety of the ring main unit is improved. And an execution mechanism is triggered to deal with faults, such as supplement of environment-friendly gas, cooling, rapid detection and leakage position positioning, so that manual intervention is reduced, the operation and maintenance cost is reduced, meanwhile, the reliability and stability of the system are remarkably enhanced, and the effect of safe operation of a power grid is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection gas ring main unit, and in particular to an intelligent monitoring and early warning device for an environmental protection gas ring main unit. Background Art

[0002] The environmentally friendly gas ring main unit is a high-voltage switchgear that uses environmentally friendly gas as the insulating medium. It can be used as a high-voltage power distribution equipment to complete the separation and combination operations of high-voltage electrical equipment, as well as the protection and control of circuits. With the continuous improvement of environmental protection awareness and the growing demand for clean energy, the environmentally friendly gas ring main unit, as a new type of green energy equipment, has broad development prospects.

[0003] The existing intelligent monitoring and early warning devices for environmentally friendly gas ring network cabinets have the following defects: 1. Patent document JP2000178925A discloses a ring network type anti-rolling device, but the above document cannot perform intelligent processing and emergency response in the ring network cabinet. Once an abnormality occurs, manual intervention and detection are required, which has technical problems such as high operation and maintenance costs and low safety of use; 2. Patent document JP2006345045A discloses a transmission device of a ring network and a guarantee method thereof. However, the above document does not use nitrogen or helium as an environmentally friendly gas. Once high temperature or environmentally friendly gas leaks, it is easy to cause technical problems such as reduced performance and safety of the ring network cabinet; 3. Patent document JP2013145997A discloses a communication system, a ring network monitoring device, and a flow network speed monitoring method. However, in the above document, when there is a leakage of environmental gas or insufficient environmental gas in the high-pressure chamber, it is impossible to quickly and accurately replenish gas, which easily leads to a technical problem of reducing the safety of the ring network cabinet; 4. Patent document CN116937408B discloses an environmentally friendly gas ring network cabinet, but the above document lacks a structure that can automatically and quickly determine the exact location of environmentally friendly gas leakage, which makes it difficult to reduce the technical problem of the risk of accidents. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent monitoring and early warning device for an environmentally friendly gas ring network cabinet to solve the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an intelligent monitoring and early warning device for an environmentally friendly gas ring network cabinet, comprising a cabinet, an operating table and a data acquisition module, wherein a cabinet door is installed on the front of the cabinet through a hinge, and an operating table is installed on the front of the cabinet door, and the operating table comprises a data acquisition module, a touch display screen, a data processing module, an early warning module, a data transmission module and a PLC controller; The data acquisition module is used to collect voltage, current, temperature and environmental gas concentration data in the operation of the ring network cabinet in real time through sensors, and send the collected data to the data processing module. The data processing module determines the internal state of the ring network cabinet according to the acquired data, detects whether the acquired data is higher or lower than the set threshold, displays the detected real-time data on the touch screen, and transmits it to the monitoring center through the data transmission module to determine that the internal state of the ring network cabinet is abnormal. The early warning module is used to issue a warning through the alarm device when it is determined that the internal state of the ring network cabinet is abnormal, and drives the data transmission module to send the warning data to the monitoring center, and at the same time triggers the PLC controller to control the actuator for emergency processing; The actuator includes an environmental gas replenishing structure, a cooling structure, an environmental gas leakage detection structure and a leakage position positioning structure. The environmental gas leakage detection structure includes a funnel exhaust pipe, and the top of the funnel exhaust pipe is installed on the inner side of the bottom of the cabinet, a support frame is installed on the outer side of the bottom of the cabinet, a support rod is installed on the inner wall of the support frame, and a first environmental gas detector is installed in the middle of the top of the support rod, and the first environmental gas detector is installed directly below the exhaust pipe.

[0006] Preferably, a plurality of air holes are provided on the outer side of the bottom of the cabinet, a high-voltage chamber is installed in the middle of the inner bottom wall of the cabinet, a plurality of heat dissipation fins are installed on the outer wall of the high-voltage chamber, and the interior of the high-voltage chamber is filled with environmentally friendly gas, and the environmentally friendly gas is nitrogen or helium. The high-voltage chamber includes a switch room, a fuse room, a bus room, and a protection device. The switch room is an area for installing and operating switch equipment, the fuse room is used to form a transformer protection circuit together with the load switch room, the bus room is an area for connecting various switch equipment and power circuits, and the protection device includes overcurrent protection, overvoltage protection and undervoltage protection, which are used to cut off power supply when an abnormality occurs.

[0007] Preferably, the environmentally friendly gas replenishing structure includes a group of first partitions and a group of second partitions, and a group of storage grooves are arranged on both sides of the top of the inner wall of the cabinet through the first partition and the second partition, and the inner bottom walls of the storage grooves are installed with gas tanks, and the output end of the gas tank is installed with an output pipe, one end of the outer wall of the output pipe is installed with a solenoid valve, and the other end of the output pipe is installed through the top of the outer wall of the high-pressure warehouse, and a second environmentally friendly gas detector is installed at the front end of the inner bottom wall of the storage groove, and the second environmentally friendly gas detector is installed directly below the output end of the gas tank.

[0008] Preferably, the cooling structure includes an air intake groove, a fixing frame is installed at the bottom of the inner wall of the air intake groove, a plurality of fans are installed on the top of the fixing frame, arc-shaped air intake pipes are installed on the top of the front and back of the cabinet, and a dust filter is installed at one end of the arc-shaped air intake pipe.

[0009] Preferably, the leakage position positioning structure includes a group of limit plates, and one end of the limit plates is respectively installed on one side of the inner wall of the cabinet and the other side of the inner wall, the bottom of the limit plates is equipped with a threaded rod through a bearing, the bottom of the threaded rod passes through the inner bottom wall of the cabinet and a first servo motor is installed, and the top of the first servo motor is respectively installed on one side and the other side of the bottom of the cabinet.

[0010] Preferably, the outer walls of the threaded rods are each installed with a slider, a group of moving blocks are installed at one end of the slider, the outer walls of the moving blocks are installed on the inner walls of the moving grooves, and the moving grooves are respectively opened on one side of the inner wall of the cabinet and the other side of the inner wall of the cabinet, a second servo motor is installed on the top of the slider, a first arc groove is opened in the middle of one side of the slider, a second arc groove is opened on the inner wall of the first arc groove, a driving gear is installed on the inner wall of the second arc groove, and a transmission rod in the middle of the top of the driving gear passes through the top of the slider and is installed on the output end of the second servo motor, a semicircular driven gear is installed on the outer wall of the driving gear, and the outer wall of the semicircular driven gear is movably connected to the inner wall of the first arc groove.

[0011] Preferably, a fixing rod is installed in the middle of the top and bottom of the semicircular driven gear, and connecting blocks are installed on the top and bottom of the outer wall of the fixing rod through bearings, and one end of the connecting block is respectively installed on the top and bottom of one side of the slider, and limiting blocks are installed at both ends of one side of the semicircular driven gear, and an infrared leak detector is installed on one side of the semicircular driven gear.

[0012] Preferably, a plurality of ventilation grooves are provided on the front and back sides of the support frame, and the output direction of the ventilation grooves is inclined toward the ground.

[0013] Preferably, the working steps of the intelligent monitoring and early warning device for environmentally friendly gas ring network cabinet are as follows: S1. Through the sensors in the data acquisition module, the voltage, current, temperature and concentration data of environmental protection gas in the operation of the ring main unit are collected in real time; S2, sending the collected data to the data processing module for data detection and processing, and judging the internal state of the ring main unit, while enabling the data transmission module to transmit the real-time acquired data to the monitoring center; S3. When an abnormality is detected in the internal state of the ring main unit, the early warning module is started to send a warning signal through the alarm device, and at the same time, the data transmission module is driven to send the warning data to the monitoring center; S4. After receiving the warning signal, the PLC controller immediately controls the actuator to perform emergency processing, wherein the actuator includes an environmental gas replenishment structure, a cooling structure, an environmental gas leakage detection structure and a leakage position positioning structure; S5. The monitoring center remotely monitors the operating status of the ring main unit through the received real-time data and warning information, and takes corresponding measures according to the received information to improve the safety of the ring main unit.

[0014] Preferably, the step S2 further includes the following steps: S21, detecting whether the acquired data is higher or lower than a preset threshold, so as to determine whether the internal state of the ring main unit is normal; The step S4 also includes the following steps: S41, environmental gas replenishment structure, when it is detected that the environmental gas concentration is insufficient, the environmental gas replenishment structure will automatically replenish gas to the high-pressure chamber; The cooling structure will start the fan to cool down the room when the temperature is too high. The environmental gas leakage detection structure and the leakage position positioning structure detect the leakage and accurately locate the leakage position. The infrared leak detector, with the assistance of the positioning structure, scans the inside of the ring network cabinet and reports immediately once a leakage point is found.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can perform intelligent processing and emergency response in the ring network cabinet through the data acquisition module, data processing module, early warning module, data transmission module and PLC controller, thereby achieving the effect of comprehensively improving the operation and maintenance efficiency and safety. When relevant abnormal data is collected, it can quickly issue an early warning and trigger the actuator to respond to the fault, such as replenishing environmental protection gas, cooling, and quickly detecting and locating the leakage position, thereby reducing manual intervention and reducing the operation and maintenance cost. At the same time, it significantly enhances the reliability and stability of the system and ensures the safe operation of the power grid; 2. The present invention is conducive to improving the protection effect of the ring network cabinet through the arrangement of the cabinet body and the high-voltage chamber. Nitrogen or helium is used as the environmentally friendly gas, which not only ensures the insulation performance but also improves the overall safety of use. The arrangement of the heat dissipation fins, the fan and the arc-shaped air intake pipe can not only prevent rainwater from entering through the air intake pipe but also improve the cooling effect, thereby achieving the improvement of the performance and safety of the ring network cabinet; 3. The present invention uses the first partition and the second partition to divide the storage slot, and then independently stores the two gas cylinders, which improves the portability of maintenance and replacement. Combined with the automatic control technology of the second environmental gas detector and the data processing module, it is conducive to ensuring the safety of use and the accuracy of replenishment of environmental gas. At the same time, the location of the second environmental gas detector is conducive to quickly detecting the leakage at the output end of the gas cylinder, so as to achieve the effect of accurate gas replenishment and safe use; 4. The present invention uses a first servo motor to drive the slider to move flexibly in the vertical direction through the setting of a leakage position positioning structure, and uses a second servo motor, an arc groove, a driving gear and a semicircular driven gear to adjust the horizontal angle of the infrared leak detector, thereby being able to perform a comprehensive scan of the connection corners of the high-pressure chamber and the connection of the output pipe, thereby quickly identifying the leakage position and triggering response measures, effectively avoiding accident risks and improving safety and reliability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 4 It is a schematic diagram of the overall top cross-sectional structure of the present invention; Figure 5 It is a schematic cross-sectional view of the overall side structure of the present invention; Figure 6 It is a schematic diagram of the structure of the high-pressure chamber from a top view of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B in the middle; Figure 8 It is a schematic diagram of the structure of the slider of the present invention; Fig. 9 It is a schematic diagram of the system flow of the present invention; Fig.10 It is a schematic diagram of the workflow of the present invention.

[0017] In the figure: 1. cabinet; 2. operating table; 3. data acquisition module; 4. cabinet door; 5. touch screen; 6. data processing module; 7. early warning module; 8. data transmission module; 9. PLC controller; 10. monitoring center; 11. actuator; 12. environmental protection gas replenishment structure; 13. cooling structure; 14. environmental protection gas leakage detection structure; 15. funnel exhaust pipe; 16. support frame; 17. support rod; 18. first environmental protection gas detector; 19. air vent; 20. high pressure chamber; 21. heat dissipation fin; 23. first partition; 24. second partition; 25. storage tank; 26. gas tank; 27, output pipe; 28, solenoid valve; 29, second environmental gas detector; 30, air inlet groove; 31, fixed frame; 32, fan; 33, arc-shaped air inlet pipe; 34, dust filter; 35, leakage position positioning structure; 36, limit plate; 37, threaded rod; 38, first servo motor; 39, slider; 40, moving block; 41, moving groove; 42, first arc groove; 43, second arc groove; 44, driving gear; 45, semicircular driven gear; 46, fixed rod; 47, connecting block; 48, limit block; 49, infrared leak detector; 51, air vent; 53, second servo motor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example 1: Please refer to Figure 1 and Fig. 9 , an embodiment provided by the present invention: an intelligent monitoring and early warning device for an environmental protection gas ring network cabinet, comprising a cabinet 1, an operating table 2 and a data acquisition module 3, a cabinet door 4 is installed on the front of the cabinet 1 through a hinge, and an operating table 2 is installed on the front of the cabinet door 4, and the operating table 2 includes a data acquisition module 3, a touch display screen 5, a data processing module 6, an early warning module 7, a data transmission module 8 and a PLC controller 9; The data acquisition module 3 is used to collect the voltage, current, temperature and environmental gas concentration data of the ring network cabinet in real time through sensors, and send the collected data to the data processing module 6. The data processing module 6 determines the internal state of the ring network cabinet according to the acquired data, detects whether the acquired data is higher or lower than the set threshold, displays the detected real-time data on the touch screen 5, and transmits it to the monitoring center 10 through the data transmission module 8 to determine that the internal state of the ring network cabinet is abnormal. The early warning module 7 is used to issue a warning through the alarm device when it is determined that the internal state of the ring network cabinet is abnormal, and drives the data transmission module 8 to send the warning data to the monitoring center 10, and triggers the PLC controller 9 to control the actuator 11 to perform emergency processing; The actuator 11 includes an environmental gas replenishing structure 12, a cooling structure 13, an environmental gas leakage detection structure 14 and a leakage position positioning structure 35. The environmental gas leakage detection structure 14 includes a funnel exhaust pipe 15, and the top of the funnel exhaust pipe 15 is installed on the inner side of the bottom of the cabinet 1. A support frame 16 is installed on the outer side of the bottom of the cabinet 1. A support rod 17 is installed on the inner wall of the support frame 16. A first environmental gas detector 18 is installed in the middle of the top of the support rod 17, and the first environmental gas detector 18 is installed directly below the funnel exhaust pipe 15. Furthermore, through the data acquisition module 3, the data processing module 6, the early warning module 7, the data transmission module 8 and the PLC controller 9, intelligent processing and emergency response can be performed in the ring network cabinet, thereby achieving the effect of comprehensively improving the operation and maintenance efficiency and safety. When relevant abnormal data is collected, an early warning can be quickly issued, and the actuator 11 can be triggered to respond to the fault, such as replenishing environmental protection gas, cooling, and quickly detecting and locating the leakage position, thereby reducing manual intervention and reducing operation and maintenance costs, while significantly enhancing the reliability and stability of the system, ensuring the safe operation of the power grid.

[0022] Example 2: Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 , an embodiment provided by the present invention: a plurality of air holes 19 are provided on the outer side of the bottom of the cabinet 1, a high-voltage chamber 20 is installed in the middle of the inner bottom wall of the cabinet 1, a plurality of heat dissipation fins 21 are installed on the outer wall of the high-voltage chamber 20, and the interior of the high-voltage chamber 20 is filled with environmentally friendly gas, and the environmentally friendly gas is nitrogen or helium. The high-voltage chamber 20 includes a switch room, a fuse room, a bus room, and a protection device. The switch room is used for installing and operating the switch equipment. The fuse room is used to form a transformer protection circuit together with the load switch room. The bus room is used to connect the various switch equipment and the power circuit area. The protection device includes overcurrent protection, overvoltage protection and undervoltage protection, which are used to cut off the power supply when an abnormality occurs; The cooling structure 13 includes an air intake slot 30, a fixing frame 31 is installed at the bottom of the inner wall of the air intake slot 30, a plurality of fans 32 are installed on the top of the fixing frame 31, an arc-shaped air intake pipe 33 is installed on the top of the front and back of the cabinet 1, and a dust filter 34 is installed at one end of the arc-shaped air intake pipe 33; A plurality of ventilation slots 51 are provided on the front and back of the support frame 16, and the output direction of the ventilation slots 51 is inclined toward the ground; Furthermore, the arrangement of the cabinet body 1 and the high-voltage chamber 20 is conducive to improving the protection effect of the ring network cabinet. Nitrogen or helium is used as an environmentally friendly gas, which not only ensures the insulation performance but also improves the overall safety of use. The arrangement of the heat dissipation fins 21, the fan 32 and the arc-shaped air inlet pipe 33 can not only prevent rainwater from entering through the air inlet pipe but also improve the cooling effect, thereby improving the performance and safety of the ring network cabinet.

[0023] Example 3: Please refer to Figure 2 , Figure 4 and Figure 5, an embodiment provided by the present invention: the environmental protection gas replenishing structure 12 includes a group of first partitions 23 and a group of second partitions 24, a group of storage slots 25 are arranged on both sides of the top of the inner wall of the cabinet 1 through the first partitions 23 and the second partitions 24, the inner bottom walls of the storage slots 25 are installed with gas tanks 26, the output end of the gas tank 26 is installed with an output pipe 27, one end of the outer wall of the output pipe 27 is installed with a solenoid valve 28, and the other end of the output pipe 27 is installed through the top of the outer wall of the high-pressure warehouse 20, and the front end of the inner bottom wall of the storage slot 25 is installed with a second environmental protection gas detector 29, and the second environmental protection gas detector 29 is installed directly below the output end of the gas tank 26; Furthermore, the first partition 23 and the second partition 24 are used to divide the storage slot 25, and then the two gas cylinders 26 are stored independently, which improves the portability of maintenance and replacement. Combined with the second environmental gas detector 29 and the automatic control technology of the data processing module 6, it is beneficial to ensure the safety of use and the accuracy of replenishment of environmental gas. At the same time, the position setting of the second environmental gas detector 29 is conducive to quickly detecting leakage at the output end of the gas tank 26, so as to achieve the effect of accurate gas replenishment and safe use.

[0024] Example 4: Please refer to Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 , an embodiment provided by the present invention: the leakage position positioning structure 35 includes a set of limiting plates 36, and one end of the limiting plates 36 is respectively installed on one side and the other side of the inner wall of the cabinet 1, and a threaded rod 37 is installed at the bottom of the limiting plates 36 through a bearing, and the bottom of the threaded rod 37 passes through the inner bottom wall of the cabinet 1 to install a first servo motor 38, and the top of the first servo motor 38 is respectively installed on one side and the other side of the bottom of the cabinet 1; The outer wall of the threaded rod 37 is installed with a slider 39, and one end of the slider 39 is installed with a group of moving blocks 40. The outer wall of the moving block 40 is installed on the inner wall of the moving groove 41, and the moving groove 41 is respectively opened on one side of the inner wall of the cabinet 1 and the other side of the inner wall of the cabinet 1. A second servo motor 53 is installed on the top of the slider 39. A first arc groove 42 is opened in the middle of one side of the slider 39, and a second arc groove 43 is opened on the inner wall of the first arc groove 42. A driving gear 44 is installed on the inner wall of the second arc groove 43, and a transmission rod in the middle of the top of the driving gear 44 passes through the top of the slider 39 and is installed at the output end of the second servo motor 53. A semicircular driven gear 45 is installed on the outer wall of the driving gear 44, and the outer wall of the semicircular driven gear 45 is movably connected to the inner wall of the first arc groove 42; A fixing rod 46 is installed at the middle of the top and bottom of the semicircular driven gear 45, and a connecting block 47 is installed at the top and bottom of the outer wall of the fixing rod 46 through a bearing, and one end of the connecting block 47 is respectively installed at the top and bottom of one side of the slider 39, and a limiting block 48 is installed at both ends of one side of the semicircular driven gear 45. An infrared leak detector 49 is installed on one side of the semicircular driven gear 45; Furthermore, by setting the leakage position positioning structure 35, the first servo motor 38 is used to drive the slider 39 to move flexibly in the vertical direction. By setting the second servo motor 53, the arc groove, the driving gear 44 and the semicircular driven gear 45, the horizontal angle of the infrared leak detector 49 can be adjusted, so that the connection corners of the high-pressure chamber 20 and the connection of the output pipe 27 can be fully scanned, and the leakage position can be quickly identified, and the response measures can be triggered, so as to effectively avoid the risk of accidents and improve the safety and reliability of use.

[0025] Example 5: Please refer to Fig.10 , an embodiment provided by the present invention: the working steps of the intelligent monitoring and early warning device for environmental protection gas ring network cabinet are as follows: S1. Through the sensors in the data acquisition module 3, the voltage, current, temperature and concentration data of environmental protection gas in the operation of the ring main unit are collected in real time; S2, sending the collected data to the data processing module 6 for data detection and processing, and judging the internal state of the ring main unit, while enabling the data transmission module 8 to transmit the real-time acquired data to the monitoring center 10; S3, when an abnormality is detected in the internal state of the ring main unit, the early warning module 7 is started to send a warning signal through the alarm device, and at the same time, the data transmission module 8 is driven to send the warning data to the monitoring center 10; S4, after receiving the warning signal, the PLC controller 9 immediately controls the actuator 11 to perform emergency processing, wherein the actuator 11 includes an environmental gas replenishment structure 12, a cooling structure 13, an environmental gas leakage detection structure 14 and a leakage position positioning structure 35; S5. The monitoring center 10 remotely monitors the operating status of the ring main unit through the received real-time data and warning information, and takes corresponding measures according to the received information to improve the safety of the ring main unit; S2 also includes the following steps: S21, detecting whether the acquired data is higher or lower than a preset threshold, so as to determine whether the internal state of the ring main unit is normal; S4 also includes the following steps: S41, the environmental gas replenishing structure 12, when detecting that the environmental gas concentration is insufficient, the environmental gas replenishing structure 12 will automatically replenish gas to the high-pressure chamber 20; The cooling structure 13 will start the fan 32 to cool down the temperature when it detects that the temperature is too high; The environmental gas leakage detection structure 14 and the leakage position positioning structure 35 detect the leakage and accurately locate the leakage position. The infrared leak detector 49, with the assistance of the positioning structure, scans the inside of the ring network cabinet and reports immediately once a leakage point is found.

[0026] Working principle: through the data acquisition module 3, the data processing module 6, the early warning module 7, the data transmission module 8 and the PLC controller 9, the ring network cabinet can be intelligently processed and responded to emergencies, thereby achieving the effect of comprehensively improving the operation and maintenance efficiency and safety. When relevant abnormal data is collected, an early warning can be quickly issued, and the actuator 11 can be triggered to respond to faults, such as replenishing environmentally friendly gas, cooling, and quickly detecting and locating the leakage position, thereby reducing manual intervention and reducing the operation and maintenance cost. At the same time, it significantly enhances the reliability and stability of the system and ensures the safe operation of the power grid. The setting of the cabinet 1 and the high-voltage compartment 20 is conducive to improving the protection effect of the ring network cabinet. Nitrogen or helium is used as the environmentally friendly gas, which not only ensures the insulation performance but also improves the overall safety of use. Through the setting of the heat dissipation fins 21, the fan 32 and the arc-shaped air intake pipe 33, it can prevent rainwater from entering through the air intake pipe and can also improve the cooling effect, thereby improving the performance and safety of the ring network cabinet. The first The partition 23 and the second partition 24 divide the storage slot 25, and then the two gas cylinders 26 are stored independently, which improves the portability of maintenance and replacement. Combined with the second environmental gas detector 29 and the automatic control technology of the data processing module 6, it is conducive to ensuring the safety of use and the accuracy of replenishment of environmental gas. At the same time, the position setting of the second environmental gas detector 29 is conducive to quickly detecting the leakage at the output end of the gas cylinder 26, so as to achieve the effect of accurate gas replenishment and safe use. Through the setting of the leakage position positioning structure 35, the first servo motor 38 is used to drive the slider 39 to move flexibly in the vertical direction. Through the setting of the second servo motor 53, the arc groove, the driving gear 44 and the semicircular driven gear 45, the horizontal angle of the infrared leak detector 49 can be adjusted, so that the connection corners of the high-pressure chamber 20 and the connection of the output pipe 27 can be fully scanned, so as to quickly identify the leakage position and trigger countermeasures, effectively avoid accident risks, and improve safety and reliability in use.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An intelligent monitoring and early warning device for an environmentally friendly gas ring main unit, comprising a cabinet (1), an operating table (2) and a data acquisition module (3), characterized in that: The cabinet body (1) is provided with a door (4) on the front side thereof via a hinge, and an operating table (2) is provided on the front side thereof; the operating table (2) comprises a data acquisition module (3), a touch screen (5), a data processing module (6), an early warning module (7), a data transmission module (8) and a PLC controller (9); The data acquisition module (3) is used to collect voltage, current, temperature and environmental gas concentration data in the operation of the ring network cabinet in real time through sensors, and send the collected data to the data processing module (6); the data processing module (6) determines the internal state of the ring network cabinet based on the acquired data, detects whether the acquired data is higher or lower than a set threshold, displays the detected real-time data on the touch screen (5), and transmits it to the monitoring center (10) through the data transmission module (8), and determines that the internal state of the ring network cabinet is abnormal; the early warning module (7) is used to issue a warning through the alarm device when it is determined that the internal state of the ring network cabinet is abnormal, and drives the data transmission module (8) to send the warning data to the monitoring center (10), and at the same time triggers the PLC controller (9) to control the actuator (11) to perform emergency processing; The actuator (11) comprises an environmental gas replenishing structure (12), a cooling structure (13), an environmental gas leakage detection structure (14) and a leakage position positioning structure (35); the environmental gas leakage detection structure (14) comprises a funnel exhaust pipe (15); the top of the funnel exhaust pipe (15) is mounted on the inner side of the bottom of the cabinet (1); a support frame (16) is mounted on the outer side of the bottom of the cabinet (1); a support rod (17) is mounted on the inner wall of the support frame (16); a first environmental gas detector (18) is mounted in the middle of the top of the support rod (17); and the first environmental gas detector (18) is mounted directly below the exhaust pipe (15).

2. According to claim 1, an intelligent monitoring and early warning device for an environmentally friendly gas ring main unit is characterized in that: The outer side of the bottom of the cabinet (1) is provided with a plurality of air holes (19); a high-voltage chamber (20) is installed in the middle of the inner bottom wall of the cabinet (1); a plurality of heat dissipation fins (21) are installed on the outer wall of the high-voltage chamber (20); the interior of the high-voltage chamber (20) is filled with an environmentally friendly gas, wherein the environmentally friendly gas is nitrogen or helium; the high-voltage chamber (20) comprises a switch room, a fuse room, a bus room, and a protection device; the switch room is used as an area for installing and operating switch equipment; the fuse room is used to form a transformer protection circuit together with the load switch room; the bus room is used to connect various switch equipment and power circuit areas; the protection device comprises an overcurrent protection device, an overvoltage protection device, and an undervoltage protection device, and is used to cut off the power supply when an abnormality occurs.

3. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 1 is characterized in that: The environmental gas replenishing structure (12) comprises a group of first partitions (23) and a group of second partitions (24); a group of storage grooves (25) are arranged on both sides of the top of the inner wall of the cabinet (1) through the first partitions (23) and the second partitions (24); a gas tank (26) is installed on the inner bottom wall of each storage groove (25); an output pipe (27) is installed at the output end of the gas tank (26); a solenoid valve (28) is installed at one end of the outer wall of the output pipe (27); and the other end of the output pipe (27) is installed through the top of the outer wall of the high-pressure chamber (20); a second environmental gas detector (29) is installed at the front end of the inner bottom wall of the storage groove (25); and the second environmental gas detector (29) is installed directly below the output end of the gas tank (26).

4. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 1 is characterized in that: The cooling structure (13) comprises an air intake groove (30), a fixing frame (31) is installed at the bottom of the inner wall of the air intake groove (30), a plurality of fans (32) are installed on the top of the fixing frame (31), an arc-shaped air intake pipe (33) is installed at the top of the front and back of the cabinet (1), and a dust filter (34) is installed at one end of the arc-shaped air intake pipe (33).

5. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 1 is characterized in that: The leakage position positioning structure (35) comprises a group of limiting plates (36), and one end of the limiting plates (36) is respectively mounted on one side and the other side of the inner wall of the cabinet (1), a threaded rod (37) is mounted on the bottom of the limiting plates (36) via a bearing, the bottom of the threaded rod (37) passes through the inner bottom wall of the cabinet (1), and a first servo motor (38) is mounted thereon, and the top of the first servo motor (38) is respectively mounted on one side and the other side of the bottom of the cabinet (1).

6. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 5, characterized in that: The outer wall of the threaded rod (37) is mounted with a slider (39), one end of the slider (39) is mounted with a group of moving blocks (40), the outer wall of the moving block (40) is mounted on the inner wall of the moving groove (41), and the moving groove (41) is respectively opened on one side of the inner wall of the cabinet (1) and the other side of the inner wall of the cabinet (1), a second servo motor (53) is mounted on the top of the slider (39), a first arc groove (42) is opened in the middle of one side of the slider (39), a second arc groove (43) is opened in the inner wall of the first arc groove (42), a driving gear (44) is mounted on the inner wall of the second arc groove (43), and a transmission rod in the middle of the top of the driving gear (44) passes through the top of the slider (39) and is mounted on the output end of the second servo motor (53), a semicircular driven gear (45) is mounted on the outer wall of the driving gear (44), and the outer wall of the semicircular driven gear (45) is movably connected to the inner wall of the first arc groove (42).

7. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 6, characterized in that: A fixing rod (46) is installed at the middle of the top and bottom of the semicircular driven gear (45), and a connecting block (47) is installed at the top and bottom of the outer wall of the fixing rod (46) through a bearing, and one end of the connecting block (47) is respectively installed at the top and bottom of one side of the slider (39), and both ends of one side of the semicircular driven gear (45) are installed with a limit block (48), and one side of the semicircular driven gear (45) is installed with an infrared leak detector (49).

8. The intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 1, characterized in that: The support frame (16) is provided with a plurality of ventilation grooves (51) on the front and back sides, and the output direction of the ventilation grooves (51) is inclined toward the ground.

9. A method for using an intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to any one of claims 1 to 8, characterized in that: The working steps of the intelligent monitoring and early warning device for environmentally friendly gas ring network cabinet are as follows: S1, using sensors in the data acquisition module (3), real-time data on voltage, current, temperature and concentration of environmentally friendly gases during operation of the ring main unit are collected; S2, sending the collected data to the data processing module (6) for data detection and processing, and judging the internal state of the ring main unit, while enabling the data transmission module (8) to transmit the real-time acquired data to the monitoring center (10); S3, when an abnormality is detected in the internal state of the ring main unit, the early warning module (7) is activated to send a warning signal through the alarm device, and at the same time, the data transmission module (8) is driven to send the warning data to the monitoring center (10); S4, after receiving the warning signal, the PLC controller (9) immediately controls the actuator (11) to perform emergency processing, wherein the actuator (11) includes an environmental gas replenishing structure (12), a cooling structure (13), an environmental gas leakage detection structure (14) and a leakage position positioning structure (35); S5. The monitoring center (10) remotely monitors the operating status of the ring main unit through the received real-time data and warning information, and takes corresponding measures according to the received information to improve the safety of the ring main unit.

10. The method for using the intelligent monitoring and early warning device for an environmentally friendly gas ring main unit according to claim 9, characterized in that: The step S2 also includes the following steps: S21, detecting whether the acquired data is higher or lower than a preset threshold, so as to determine whether the internal state of the ring main unit is normal; The step S4 also includes the following steps: S41, the environmental gas replenishing structure (12), when detecting that the concentration of the environmental gas is insufficient, the environmental gas replenishing structure (12) will automatically replenish the gas to the high-pressure chamber (20); The cooling structure (13) starts the fan (32) to cool down the temperature when it detects that the temperature is too high. The environmental gas leakage detection structure (14) and the leakage position positioning structure (35) detect the leakage and accurately locate the leakage position. The infrared leak detector (49) scans the inside of the ring network cabinet with the assistance of the positioning structure and reports immediately once a leakage point is found.

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