Intelligent, safe and environment-friendly all-insulation looped network switch device

Abstract

The invention discloses an intelligent, safe and environment-friendly all-insulation looped network switch device, and relates to the technical field of looped network switch cabinets. Comprising an outer box body, a fixed seat module arranged in the outer box body, a looped network switch cabinet installed in the outer box body through the fixed seat module, an intelligent detection module arranged in the looped network switch cabinet, and an inflation insulation module. A discharge sensor, a two-way wireless temperature measurement sensor and a controller are integrated, accurate monitoring of key parts of the looped network switch cabinet can be achieved, the temperature distribution state of equipment can be mastered in an omnibearing mode, after data of various sensors are summarized to the controller, a complete data chain of the operation state of the equipment can be formed, and early recognition of hidden faults is achieved; insulating gas can be filled into the instrument cavity, the bus cavity, the cable cavity and the intelligent control cavity through the pressure dividing header pipe, the pressurizing pipe and the porous gas spraying disc, and uniform distribution of the gas can be realized through the air vents of the partition plates, so that a global inflation insulating environment is formed in the switch cabinet, and the insulating strength of high-pressure parts can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of ring network switchgear technology, specifically to an intelligent, safe, and environmentally friendly fully insulated ring network switchgear. Background Technology

[0002] With the continuous advancement of urban and rural power grid transformation and the widespread integration of new energy power, the requirements for power supply reliability, equipment operation and maintenance convenience, and environmental protection of distribution networks are constantly increasing. As the core distribution unit in the distribution network, ring network switchgear undertakes key functions such as power distribution, line protection, and fault isolation. Its operational stability directly affects the power supply quality of the distribution network.

[0003] Against this backdrop, fully insulated ring network switchgear has gradually replaced traditional open-type switchgear due to its advantages such as adaptability to complex outdoor working conditions and reduction of the risk of electric shock and short circuits, becoming the mainstream choice for urban and rural power grid construction, industrial park power distribution and other scenarios.

[0004] However, existing fully insulated ring network switchgear still has many technical defects in practical applications, making it difficult to meet the needs of the new generation of intelligent, safe, and environmentally friendly power distribution. The monitoring methods of traditional fully insulated ring network switchgear are mostly based on manual on-site inspections, relying only on basic metering instruments to provide simple operating data. This lacks the ability to accurately capture key fault hazards. On the one hand, parts such as busbars and cable joints are prone to problems such as partial discharge and abnormal temperature rise due to long-term high-voltage operation. However, existing equipment is mostly not equipped with special detection components or only uses a single sensor for monitoring, making it difficult to comprehensively capture fault signals. This often leads to untimely fault detection, and small hidden dangers gradually escalate into serious problems such as line interruptions. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an intelligent, safe, and environmentally friendly fully insulated ring network switchgear.

[0006] The technical solution of the present invention: A smart, safe and environmentally friendly fully insulated ring network switchgear, comprising an outer enclosure, a fixed base module disposed within the outer enclosure, a ring network switch cabinet installed within the outer enclosure via the fixed base module, an intelligent detection module disposed within the ring network switch cabinet, and an air-filled insulation module; The outer casing is equipped with a heat dissipation mechanism, and the side wall of the outer casing is hinged with a door; The ring network switch cabinet is divided into an instrument chamber, a busbar chamber, a cable chamber, and an intelligent control chamber by partitions. The instrument chamber is equipped with basic metering instruments for data display, metering, and basic signal feedback. The busbar chamber is equipped with an input busbar, a busbar transformer connected to the input busbar, and a phase selection switch. The cable chamber is equipped with power cables. The side walls of the instrument chamber, busbar chamber, cable chamber, and intelligent control chamber are equipped with air inlets, and each partition is equipped with a vent. The intelligent detection module includes a discharge sensor located in the busbar cavity and the cable cavity, a first wireless temperature sensor located at the joint of the power cable, a second wireless temperature sensor located on the outer wall of the ring network switch cabinet, and a controller located in the intelligent control cavity and connected to the discharge sensor, the first wireless temperature sensor and the second wireless temperature sensor. The inflatable insulation module includes a booster pipe located at each of the inflation ports, a pressure distribution manifold for connecting each of the booster pipes, an air pump connected to the pressure distribution manifold, a multi-hole jet disc rotatably mounted at the free end of each booster pipe via a rotary joint, and a pressure relief valve located on the instrument cavity.

[0007] Furthermore, the heat dissipation mechanism includes an annular rotating plate located on the upper end of the outer casing and driven to rotate by a rotary motor; a rotating mounting frame connected by several connecting rods distributed circumferentially along the bottom end of the annular rotating plate and located around the periphery of the ring network switch cabinet; several perforated cooling plates arranged from top to bottom on the side wall of the rotating mounting frame; and an air collection hood located at the center of the bottom end of the annular rotating plate and connected to an axial flow fan. Each air collection hood is connected to the corresponding perforated cooling plate through a connecting pipe, and a heat dissipation vent is provided at the bottom end of the cabinet door.

[0008] Note: When the ring main unit generates heat during operation and the temperature inside the outer enclosure rises, this structure uses an "external airflow circulation" mode. The cooling airflow does not directly enter the various chambers inside the ring main unit, avoiding the airflow carrying dust and moisture that could damage the insulation environment of the internal gas-filled insulation modules. This is highly consistent with the "fully insulated" design concept of the equipment. Furthermore, the multi-hole cooling plate rotates around the ring main unit with the rotating mounting bracket. Combined with the multi-layer distribution design from top to bottom, it can achieve 360° all-round coverage of the ring main unit, avoiding the problem of "inadequate local heat dissipation" in traditional fixed heat dissipation structures.

[0009] Furthermore, the inner wall of the outer casing is connected to an annular plate by several horizontal connecting strips, the inner wall of the annular plate is provided with an annular strip, and the outer wall of the rotating mounting bracket is provided with an outer sliding groove that is rotatably connected to the annular strip.

[0010] Note: The horizontal connecting strip ensures that the ring plate is stably fixed to the inner wall of the outer casing, preventing the ring plate from shaking or shifting during equipment operation. The rotating connection between the ring strip and the outer sliding groove provides precise and stable rotation guidance for the rotating mounting bracket. When the rotating motor drives the ring rotating plate to rotate, the rotating mounting bracket can rotate stably around the ring plate, ensuring that the perforated cooling plate can uniformly cool the ring main switchgear.

[0011] Furthermore, a dustproof mesh is provided on the outside of the heat dissipation vent.

[0012] Note: The dustproof mesh has excellent filtration performance, effectively preventing dust, debris, and other contaminants from entering the equipment and ensuring a clean environment inside the outer casing.

[0013] Furthermore, the fixing base module includes a mounting base with a first snap-fit ​​notch at the upper end and a bottom end slidably connected to the outer casing via a slide rail, a second snap-fit ​​notch on the side wall of the mounting base, a snap-fit ​​block on the inner wall of the outer casing and opposite to the second snap-fit ​​notch, and a limiting insertion component in the second snap-fit ​​notch. The snap-fit ​​block has insertion holes on its left and right sides corresponding to the limiting insertion component.

[0014] Instructions: When the ring main switchgear needs to be installed, place it into the mounting base and push it into the outer enclosure via the slide rail. At this time, fix the mounting base and the snap-fit ​​block, and place the snap-fit ​​block into the second snap-fit ​​recess. By using the limit plug-in assembly to insert into the corresponding plug-in holes on the left and right sides of the snap-fit ​​block, the connection between the mounting base and the snap-fit ​​block can be ensured to be tight and firm, effectively preventing the mounting base from loosening or shifting during equipment operation, thereby ensuring the stable operation of the ring main switchgear.

[0015] Furthermore, the limiting insertion assembly includes a movable vertical plate, a miniature electric telescopic rod that drives the movable vertical plate to move, and several insertion support rods disposed on the movable vertical plate. The insertion holes on the left and right sides of the locking block correspond one-to-one with the insertion support rods.

[0016] Note: When the limit plug-in assembly is used, the moving vertical plate is driven by a miniature electric telescopic rod to move closer to the locking block until the plug-in support is accurately inserted into the corresponding plug-in holes on the left and right sides of the locking block. This realizes the automated operation of limit plug-in and improves the efficiency of equipment installation and maintenance.

[0017] Furthermore, the intelligent control cavity is also equipped with a wireless communication module connected to the controller. The wireless communication module can establish a data connection with the remote monitoring terminal and transmit the detection data collected by the discharge sensor, the first wireless temperature sensor, and the second wireless temperature sensor in real time.

[0018] Description: The wireless communication module can establish a data connection with the remote monitoring terminal to transmit detection data collected by the discharge sensor, the first wireless temperature sensor, and the second wireless temperature sensor in real time. Through the remote monitoring terminal, the discharge status and temperature data of each key part of the equipment can be obtained in real time, and the operating status of the equipment can be grasped in a timely manner. When the equipment malfunctions, such as excessive discharge or excessive temperature, the remote monitoring terminal can receive the relevant data in a timely manner and issue an alarm, so as to facilitate the rapid implementation of corresponding measures to prevent the fault from escalating further and ensure the safe and stable operation of the equipment.

[0019] Furthermore, it also includes a gas leakage detection module, which includes a micro differential pressure sensor, a gas concentration sensor, a gas flow sensor installed on each of the pressurization pipes, and an audible and visual alarm installed on the outer wall of the enclosure door, all of which are respectively located inside the instrument chamber, busbar chamber, cable chamber, and intelligent control chamber.

[0020] Explanation: The micro differential pressure sensor can detect the pressure difference between the inside of each cavity and the external environment in real time. When a leak occurs in any cavity, the internal pressure will change. The micro differential pressure sensor can capture this change in time and transmit the relevant data to the controller. The gas concentration sensor can detect the concentration of insulating gas inside each cavity. If a leak occurs, the concentration of insulating gas will decrease. The gas concentration sensor can quickly detect the concentration change and feed it back to the controller. The gas flow sensor installed on the pressurization pipe can monitor the gas flow rate change in the pressurization pipe in real time. When the gas-filled insulation module is being inflated or pressurized, if there is a leak in a cavity corresponding to a certain pressurization pipe, the gas flow rate in that pressurization pipe will change abnormally. The gas flow sensor can detect this abnormality in time and transmit the data to the controller. When the controller receives abnormal data from any of the above sensors and determines that there is a leak in the equipment, it will immediately control the audible and visual alarm on the outer wall of the box door to sound an alarm, reminding the staff to check and repair in time. This provides comprehensive and reliable leak detection protection for the gas-filled insulation system of the equipment, ensuring the insulation performance and operational safety of the equipment.

[0021] Furthermore, the inner side of the door is provided with a magnetic sealing strip, and the side wall of the outer casing corresponding to the closed position of the door is provided with a magnetic adsorption strip that is compatible with the magnetic sealing strip.

[0022] Note: The magnetic sealing strip and the magnetic adsorption strip have a strong magnetic attraction force. When the door is closed, the two can fit tightly together to form a good sealing effect.

[0023] The beneficial effects of this invention are: The intelligent, safe, and environmentally friendly fully insulated ring network switchgear of this invention integrates a discharge sensor, dual-channel wireless temperature sensors, and a controller, enabling precise monitoring of key components of the ring network switchgear: the discharge sensor, deployed in the busbar cavity and cable cavity, can capture partial discharge signals of high-voltage components in real time, providing early warning of potential faults such as insulation degradation and internal discharge; the first wireless temperature sensor monitors the temperature of the power cable joint, a heat-prone area, while the second wireless temperature sensor monitors the overall temperature rise of the switchgear's outer wall, providing a comprehensive understanding of the equipment's temperature distribution. Data from multiple sensors is aggregated to the controller, forming a complete data chain of the equipment's operating status, enabling early identification of potential faults; through the voltage divider manifold, booster pipe, and multi-hole jet plate, power can be supplied to the instrument cavity and busbar cavity. The switchgear cavity, cable cavity, and intelligent control cavity are all filled with insulating gas, and the vents of each partition plate can achieve uniform gas distribution, creating a fully gas-insulated environment inside the switchgear. This significantly improves the insulation strength of high-voltage components and effectively avoids insulation faults such as creepage and flashover caused by factors such as air humidity and dust. At the same time, the heat dissipation mechanism adopts a unique "external airflow circulation" mode, where cooling gas forms a 360° circulation for heat dissipation around the switchgear without directly entering the internal cavity. This design not only solves the heat dissipation requirements of equipment operation but also prevents dust and moisture carried by external airflow from entering the interior, preventing contamination of the insulating gas and condensation inside the cavity, thus ensuring the stability of the gas-insulated environment. This design is highly consistent with the "full insulation" design concept, achieving a synergistic unity of heat dissipation and insulation protection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the installation structure of the ring network switchgear of the present invention inside the outer casing; Figure 2 This is a schematic diagram of the internal structure of the ring network switchgear when the gas-insulated module of the present invention is not installed; Figure 3 This is a schematic diagram of the internal structure of the ring network switchgear during the installation of the gas-insulated module of the present invention; Figure 4 This is the invention Figure 1 Enlarged view of point A; Figure 5 This is a top view of the annular plate of the present invention; Figure 6 This is the first installation top view of the ring network switchgear of the present invention installed inside the outer casing; Figure 7 This is a second top view of the ring main switchgear of the present invention installed inside the outer casing; Figure 8 This is a schematic diagram of the structure of the movable vertical plate of the present invention.

[0025] Among them, 1-outer casing, 10-heat dissipation mechanism, 100-rotary motor, 101-ring rotating plate, 102-rotating mounting bracket, 103-perforated cooling plate, 104-air collection hood, 106-outer sliding groove, 11-box door, 110-heat dissipation vent, 111-dustproof mesh plate, 112-magnetic sealing strip, 113-magnetic adsorption strip, 12-connecting support rod, 13-axial flow fan, 14-ring plate, 140-horizontal connecting strip, 141-ring strip, 2-fixed base module, 20-mounting base, 200-first snap-fit ​​notch, 201-slide rail, 21-second snap-fit ​​notch, 22-snap-fit ​​block, 220-insertion hole, 23-limiting insertion assembly, 230-moving vertical plate, 231-miniature electric telescopic rod, 232-insertion support 3-Ring network switchgear, 30-Separator plate, 300-Ventilation port, 31-Instrument cavity, 32-Busbar cavity, 320-Input busbar, 321-Busbar transformer, 322-Phase selection switch, 33-Cable cavity, 330-Power cable, 34-Intelligent control cavity, 35-Inflation port, 4-Intelligent detection module, 40-Discharge sensor, 41-First wireless temperature sensor, 42-Second wireless temperature sensor, 43-Controller, 44-Wireless communication module, 5-Inflation insulation module, 50-Pressure booster pipe, 51-Pressure divider main pipe, 52-Air pump, 53-Multi-hole jet disc, 54-Pressure relief valve, 6-Leakage detection module, 60-Micro differential pressure sensor, 61-Gas concentration sensor, 62-Gas flow sensor, 63-Audible and visual alarm. Detailed Implementation

[0026] Example 1 like Figure 1 As shown, an intelligent, safe, and environmentally friendly fully insulated ring network switchgear includes an outer enclosure 1, a fixed base module 2 disposed within the outer enclosure 1, a ring network switch cabinet 3 installed within the outer enclosure 1 via the fixed base module 2, an intelligent detection module 4 disposed within the ring network switch cabinet 3, and an air-filled insulation module 5. The outer casing 1 is equipped with a heat dissipation mechanism 10, and the side wall of the outer casing 1 is hinged with a door 11. like Figure 2 , 3As shown, the ring network switchgear 3 is divided into an instrument chamber 31, a busbar chamber 32, a cable chamber 33, and an intelligent control chamber 34 by partition plates 30. The instrument chamber 31 contains basic metering instruments for data display, metering, and basic signal feedback. The busbar chamber 32 contains an input busbar 320, a busbar transformer 321 connected to the input busbar 320, and a phase selection switch 322. The cable chamber 33 contains power cables 330. The side walls of the instrument chamber 31, busbar chamber 32, cable chamber 33, and intelligent control chamber 34 are all equipped with air inlets 35. Each partition plate 30 is equipped with a ventilation port 35. The air inlet 300 includes basic metering instruments such as voltmeters, ammeters, and energy meters. The input busbar 320, busbar transformer 321, phase selector switch 322, and power cable 330 all adopt existing technologies. For example, the input busbar 320 can be a TMY-60×6 type busbar, the busbar transformer 321 can be an LMZJ1-10 type busbar transformer, the phase selector switch 322 can be a VS1-12 / 630-25 type phase selector switch, and the power cable 330 can be a YJV22-8.7 / 10kV-3×70 type cable. The intelligent detection module 4 includes a discharge sensor 40 located in the busbar cavity 32 and the cable cavity 33, a first wireless temperature sensor 41 located at the joint of the power cable 330, a second wireless temperature sensor 42 located on the outer wall of the ring network switch cabinet 3, and a controller 43 located in the intelligent control cavity 34 and connected to the discharge sensor 40, the first wireless temperature sensor 41, and the second wireless temperature sensor 42. The discharge sensor 40, the first wireless temperature sensor 41, the second wireless temperature sensor 42, and the controller 43 all adopt existing technologies. The discharge sensor 40 can be an MCSG-PD-6016 type discharge sensor, the first wireless temperature sensor 41 and the second wireless temperature sensor 42 can be DX-PDS100-CWR2 type temperature sensors, and the controller 43 can be an ASD200 type controller. The inflatable insulation module 5 includes a booster pipe 50 located at each inflation port 35, a pressure distribution main pipe 51 for connecting each booster pipe 50, an air pump 52 connected to the pressure distribution main pipe 51, a multi-hole jet disc 53 rotatably mounted on the free end of each booster pipe 50 via a rotary joint, and a pressure relief valve 54 located on the instrument cavity 31. The booster pipe 50, the pressure distribution main pipe 51, the air pump 52, the multi-hole jet disc 53, and the pressure relief valve 54 all adopt existing technologies. The booster pipe 50 can be a 304 stainless steel high-pressure pipe, the pressure distribution main pipe 51 can be a DN50 type stainless steel air collection main pipe, the air pump 52 can be a ZCQC-55 type air pump, the multi-hole jet disc 53 can be a PJD series multi-hole jet disc, and the pressure relief valve 54 can be an A46Y / A46F type pressure relief valve. The heat dissipation mechanism 10 includes an annular rotating plate 101 located on the upper end of the outer casing 1 and driven to rotate by a rotary motor 100; a rotating mounting frame 102 connected by four connecting rods 12 distributed circumferentially along the bottom end of the annular rotating plate 101 and located on the periphery of the ring network switchgear 3; four perforated cooling plates 103 arranged from top to bottom on the side wall of the rotating mounting frame 102; and a gas collection hood 104 located at the center of the bottom end of the annular rotating plate 101 and connected to an axial flow fan 13. Each gas collection hood 104 is connected to the corresponding perforated cooling plate 103 through a connecting pipe. The bottom end of the cabinet door 11 is provided with a heat dissipation vent 110. This structure uses an "external airflow circulation" mode, so the cooling airflow does not directly enter the various chambers inside the ring network switchgear 3, avoiding the airflow carrying dust and moisture that could damage the internal air-filled insulation. The insulation environment of Block 5 is highly consistent with the "full insulation" design concept of the equipment. The porous cooling plate 103 rotates around the ring network switch cabinet 3 with the rotating mounting frame 102. Combined with the multi-layer distribution design from top to bottom, it can achieve 3360° all-round coverage of the ring network switch cabinet 3, avoiding the problem of "inadequate local heat dissipation" in traditional fixed heat dissipation structures. Among them, the rotating motor 100, the porous cooling plate 103, the axial flow fan 13 and the air collection hood 104 all adopt existing technologies. The rotating motor 100 can be a 57BYG250H type rotating motor, the porous cooling plate 103 can be a KLP-150 porous air-cooled plate, the axial flow fan 13 can be an FZY-200 type external rotor axial flow fan, and the air collection hood 104 can be a JX-200 type air collection hood. like Figure 4 , 5 As shown, the inner wall of the outer casing 1 is connected to an annular plate 14 by six horizontal connecting strips 140. The inner wall of the annular plate 14 is provided with an annular strip 141. The outer wall of the rotating mounting bracket 102 is provided with an outer sliding groove 106 that is rotatably connected to the annular strip 141. The horizontal connecting strips 140 can ensure that the annular plate 14 is stably fixed to the inner wall of the outer casing 1, and prevent the annular plate 14 from shaking or shifting during equipment operation. The rotatable connection between the annular strip 141 and the outer sliding groove 106 provides a precise and stable rotation guide for the rotating mounting bracket 102. When the rotating motor 100 drives the annular rotating plate 101 to rotate, the rotating mounting bracket 102 can rotate stably around the annular plate 14, ensuring that the porous cooling plate 103 can uniformly cool the ring network switch cabinet 3. The heat dissipation vent 110 is equipped with a dustproof mesh plate 111 on the outside; the dustproof mesh plate 111 has good filtration performance and can effectively block dust, debris and other objects from entering the equipment, ensuring the cleanliness of the internal environment of the outer casing 1; The inner side of the door 11 is provided with a magnetic sealing strip 112, and the side wall of the outer box 1 corresponding to the closed position of the door 11 is provided with a magnetic adsorption strip 113 adapted to the magnetic sealing strip 112. The magnetic sealing strip 112 and the magnetic adsorption strip 113 have a strong magnetic adsorption force. When the door 11 is closed, the two can fit tightly together to form a good sealing effect. The magnetic sealing strip 112 and the magnetic adsorption strip 113 both adopt existing technology. The magnetic sealing strip 112 can be an FDM-508 type magnetic sealing strip, and the magnetic adsorption strip 113 can be an FX-801 type magnetic adsorption strip.

[0027] Example 2 The difference between this embodiment and Embodiment 1 is that: like Figure 6 , 7 As shown, the mounting base module 2 includes a mounting base 20 with a first snap-fit ​​notch 200 at the upper end and a bottom end slidably connected to the outer housing 1 via a slide rail 201, a second snap-fit ​​notch 21 on the side wall of the mounting base 20, a snap-fit ​​block 22 on the inner wall of the outer housing 1 and opposite to the second snap-fit ​​notch 21, and a limiting insertion component 23 in the second snap-fit ​​notch 21. The snap-fit ​​block 22 has insertion holes 220 on its left and right sides corresponding to the limiting insertion component 23. When the ring network switchgear 3 needs to be installed, it is placed in the mounting base 20 and pushed by the slide rail 201. The device is sent to the interior of the outer casing 1. At this time, the mounting base 20 and the snap-fit ​​block 22 are fixed. The snap-fit ​​block 22 is placed into the second snap-fit ​​notch 21. The limiting plug-in assembly 23 is inserted into the corresponding plug-in holes 220 on the left and right sides of the snap-fit ​​block 22. This ensures that the connection between the mounting base 20 and the snap-fit ​​block 22 is tight and firm, effectively preventing the mounting base 20 from loosening or shifting during equipment operation, thereby ensuring the stable operation of the ring network switch cabinet 3. The slide rail 201 adopts existing technology, such as a lightweight 3 / 4 stroke two-section industrial slide rail. like Figure 8 As shown, the limiting insertion assembly 23 includes a movable vertical plate 230, a miniature electric telescopic rod 231 that drives the movable vertical plate 230 to move, and three insertion support rods 232 disposed on the movable vertical plate 230. The insertion holes 220 on the left and right sides of the locking block 22 correspond one-to-one with the insertion support rods 232. When the limiting insertion assembly 23 is used, the movable vertical plate 230 is driven to move closer to the locking block 22 by the miniature electric telescopic rod 231 until the insertion support rods 232 are accurately inserted into the corresponding insertion holes 220 on the left and right sides of the locking block 22. This realizes the automated operation of limiting insertion and improves the efficiency of equipment installation and maintenance. The miniature electric telescopic rod 231 adopts existing technology, such as the XTL-100 type miniature electric telescopic rod. The intelligent control cavity 34 is also equipped with a wireless communication module 44 connected to the controller 43. The wireless communication module 44 can establish a data connection with the remote monitoring terminal and transmit the detection data collected by the discharge sensor 40, the first wireless temperature sensor 41, and the second wireless temperature sensor 42 in real time. The remote monitoring terminal can obtain the discharge status and temperature data of each key part of the equipment in real time, and promptly grasp the operating status of the equipment. When the equipment malfunctions, such as excessive discharge or excessive temperature, the remote monitoring terminal can receive the relevant data in time and issue an alarm prompt, so as to facilitate the rapid implementation of corresponding measures to prevent the fault from escalating further and ensure the safe and stable operation of the equipment. The wireless communication module 44 adopts existing technology, such as the Z-8001 type wireless communication module.

[0028] Example 3 The difference between this embodiment and Embodiment 2 is that: like Figure 2 , 3 As shown, it also includes a leak detection module 6. The leak detection module 6 includes a differential pressure sensor 60, a gas concentration sensor 61, gas flow sensors 62 installed on each of the booster pipes 50, and an audible and visual alarm 63 installed on the outer wall of the enclosure door 11, all located inside the instrument chamber 31, busbar chamber 32, cable chamber 33, and intelligent control chamber 34 respectively. When the controller 43 receives abnormal data from any of the differential pressure sensor 60, gas concentration sensor 61, or gas flow sensor 62, and determines that there is a leak in the equipment, it will immediately control the audible and visual alarm 63 on the outer wall of the enclosure door 11 to sound an alarm, reminding personnel to conduct timely inspection and... The maintenance provides comprehensive and reliable leakage detection protection for the equipment's gas-filled insulation system, ensuring the equipment's insulation performance and operational safety. Among them, the micro differential pressure sensor 60, gas concentration sensor 61, gas flow sensor 62, and audible and visual alarm 63 all adopt existing technologies. For example, the micro differential pressure sensor 60 can be an SDP610-500Pa type micro differential pressure sensor, the gas concentration sensor 61 can be an SF6-2000 type gas concentration sensor, the gas flow sensor 62 can be a D6F-PH0505AD1 type gas flow sensor, and the audible and visual alarm 63 can be an LTE-1101J type audible and visual alarm.

[0029] The fully insulated ring network switchgear of this embodiment includes the following steps in use: S1. When the ring network switch cabinet 3 needs to be installed, it is placed in the mounting base 20 and pushed into the outer housing 1 through the slide rail 201. At this time, the snap-fit ​​block 22 on the inner wall of the outer housing 1 will be embedded in the second snap-fit ​​notch 21 on the side wall of the mounting base 20. The controller 43 then triggers the limit plug-in assembly 23 to work. The micro electric telescopic rod 231 drives the moving vertical plate 230 to move towards the snap-fit ​​block 22 until the plug-in support rod 232 on the moving vertical plate 230 is precisely inserted into the corresponding plug-in hole 220, so as to achieve rigid fixation between the mounting base 20 and the outer housing 1. S2. Close the door 11. The magnetic sealing strip 112 on the inside of the door 11 and the magnetic adsorption strip 113 at the corresponding position of the outer box 1 are tightly attached under the action of magnetic force to form the first sealing barrier. S3, controller 43 starts the vacuum pump 52, the vacuum pump 52 pressurizes dry, inert insulating gas such as SF6 and delivers it to the pressure distribution main pipe 51, the pressure distribution main pipe 51 then distributes the gas to the air inlets 35 of the instrument chamber 31, busbar chamber 32, cable chamber 33 and intelligent control chamber 34 through each pressure boosting pipe 50. Since each partition plate 30 is provided with a vent 300, the gas can flow freely in each chamber, and finally achieves the gas pressure balance inside each chamber. S4. External power is connected to the equipment through the power cable inside the cable cavity 33, and transmitted to the input bus 320 of the bus cavity 32 via the power cable 330. The bus transformer 321 transforms the input voltage and current, converting high voltage and large current into low voltage and small current signals. On the one hand, it is transmitted to the basic metering instruments in the instrument cavity 31 to realize the real-time measurement and display of power data such as voltage, current and power. On the other hand, it provides control signals to the phase selection switch 322. The phase selection switch 322 distributes the power to the input bus 320 according to the grid operation requirements to ensure that the power is accurately delivered to the downstream load. S5. The discharge sensor 40 inside the busbar cavity 32 and cable cavity 33 continuously monitors whether there is a partial discharge phenomenon in the circuit, such as corona discharge caused by insulation damage. When a discharge signal is detected, the electrical signal is immediately converted into a digital signal and transmitted to the controller 43. The first wireless temperature sensor 41 is installed at the joint of the power cable 330 at a high-heat-risk point, and the second wireless temperature sensor 42 is installed on the outer wall of the ring network switch cabinet 3. Both collect temperature data in real time and transmit it to the controller 43. S6, the controller 43 performs real-time analysis on the data transmitted by the discharge sensor 40 and the first wireless temperature sensor 41, and sets safety thresholds such as discharge amount ≤5pC and cable joint temperature ≤80℃. When the data exceeds the threshold, an early warning is triggered immediately. S7. When the second wireless temperature sensor 42 detects that the temperature of the outer wall of the ring network switch cabinet 3 exceeds the preset value of 40℃, the heat dissipation mechanism 10 is immediately activated. The rotary motor 100 drives the annular rotating plate 101 at the top to rotate at a constant speed. The annular rotating plate 101 drives the rotating mounting frame 102 surrounding the ring network switch cabinet 3 to rotate synchronously through the circumferentially distributed connecting rods 12. At the same time, the axial flow fan 13 starts to operate to generate a strong airflow, which is collected by the air collection hood 104. The air collection hood 104 distributes the airflow evenly to the rotating mounting frame 102 through the connecting pipe. Inside the perforated cooling trays 103 on the side wall of the frame 102, as the rotating mounting frame 102 continues to rotate with the annular rotating plate 101, the perforated cooling trays 103, during their rotation around the ring network switch cabinet 3, blow cooling airflow at multiple angles and without dead angles to the outer wall of the ring network switch cabinet 3 through their densely distributed air holes. This directly acts on the external areas corresponding to the main heat-generating chambers such as the busbar cavity 32 and the cable cavity 33, quickly removing the surface heat of the ring network switch cabinet 3. The hot airflow can then be naturally discharged from the outer enclosure 1 through the heat dissipation vent 110 opened at the bottom of the cabinet door 11. S8 and the micro-differential pressure sensor 60 can detect the pressure difference between the inside of each cavity and the external environment in real time. When there is a leak in any cavity, the internal pressure will change. The micro-differential pressure sensor 60 can capture this change in time and transmit the relevant data to the controller 43. The gas concentration sensor 61 can detect the concentration of insulating gas inside each cavity. If there is a leak, the concentration of insulating gas will decrease. The gas concentration sensor 61 can quickly detect the concentration change and feed it back to the controller 43. The gas flow sensor 62 installed on the pressurization pipe 50 can monitor the gas flow change in the pressurization pipe 50 in real time. When the gas-filled insulation module 5 is being pressurized or repressurized, if there is a leak in the cavity corresponding to a certain pressurization pipe 50, the gas flow in the pressurization pipe 50 will change abnormally. The gas flow sensor 62 can detect this abnormality in time and transmit the data to the controller 43. When the controller 43 receives abnormal data from any of the above sensors and determines that there is a leak in the equipment, it will immediately control the audible and visual alarm 63 on the outer wall of the box door 11 to issue an audible and visual alarm to remind the staff to check and repair in time.

Claims

1. A smart, safe, and environmentally friendly fully insulated ring network switchgear, characterized in that, It includes an outer casing (1), a fixing base module (2) disposed inside the outer casing (1), a ring network switch cabinet (3) installed inside the outer casing (1) via the fixing base module (2), an intelligent detection module (4) disposed inside the ring network switch cabinet (3), and an air-filled insulation module (5); The outer casing (1) is equipped with a heat dissipation mechanism (10), and the side wall of the outer casing (1) is hinged with a door (11). The ring network switch cabinet (3) is divided into an instrument chamber (31), a busbar chamber (32), a cable chamber (33), and an intelligent control chamber (34) by a partition plate (30). The instrument chamber (31) is equipped with basic metering instruments for data display, metering, and basic signal feedback. The busbar chamber (32) is equipped with an input busbar (320), a busbar transformer (321) connected to the input busbar (320), and a phase selection switch (322). The cable chamber (33) is equipped with a power cable (330). The side walls of the instrument chamber (31), busbar chamber (32), cable chamber (33), and intelligent control chamber (34) are all equipped with air inlets (35), and each partition plate (30) is equipped with a vent (300). The intelligent detection module (4) includes a discharge sensor (40) located in the busbar cavity (32) and the cable cavity (33), a first wireless temperature sensor (41) located at the joint of the power cable (330), a second wireless temperature sensor (42) located on the outer wall of the ring network switch cabinet (3), and a controller (43) located in the intelligent control cavity (34) and connected to the discharge sensor (40), the first wireless temperature sensor (41) and the second wireless temperature sensor (42). The inflatable insulation module (5) includes a booster pipe (50) located at each of the inflation ports (35), a pressure distribution manifold (51) for connecting each of the booster pipes (50), an air pump (52) connected to the pressure distribution manifold (51), a multi-hole jet disc (53) rotatably mounted on the free end of each booster pipe (50) via a rotary joint, and a pressure relief valve (54) located on the instrument chamber (31).

2. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 1, characterized in that, The heat dissipation mechanism (10) includes an annular rotating plate (101) located on the upper end of the outer casing (1) and driven to rotate by a rotary motor (100), a rotating mounting frame (102) connected by several connecting rods (12) distributed circumferentially along the bottom end of the annular rotating plate (101) and located on the periphery of the ring network switch cabinet (3), several perforated cooling plates (103) arranged from top to bottom on the side wall of the rotating mounting frame (102), and an air collection hood (104) located at the center of the bottom end of the annular rotating plate (101) and connected to an axial flow fan (13). Each air collection hood (104) is connected to the corresponding perforated cooling plate (103) through a connecting pipe. The bottom end of the cabinet door (11) is provided with a heat dissipation vent (110).

3. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 2, characterized in that, The inner wall of the outer casing (1) is connected to an annular plate (14) by several horizontal connecting strips (140). The inner wall of the annular plate (14) is provided with an annular strip (141). The outer wall of the rotating mounting bracket (102) is provided with an outer sliding groove (106) that is rotatably connected to the annular strip (141).

4. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 2, characterized in that, The heat dissipation vent (110) is provided with a dustproof mesh plate (111) on the outside.

5. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 1, characterized in that, The fixed base module (2) includes a mounting base (20) with a first snap-fit ​​notch (200) at the upper end and a slide rail (201) at the bottom end that is slidably connected to the outer housing (1), a second snap-fit ​​notch (21) on the side wall of the mounting base (20), a snap-fit ​​block (22) on the inner wall of the outer housing (1) and opposite to the second snap-fit ​​notch (21), and a limiting insertion component (23) in the second snap-fit ​​notch (21). The snap-fit ​​block (22) has insertion holes (220) on the left and right sides respectively corresponding to the limiting insertion component (23).

6. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 5, characterized in that, The limiting plug-in assembly (23) includes a movable vertical plate (230), a miniature electric telescopic rod (231) that drives the movable vertical plate (230) to move, and several plug-in support rods (232) provided on the movable vertical plate (230). The plug-in holes (220) on the left and right sides of the snap-fit ​​block (22) correspond one-to-one with the plug-in support rods (232).

7. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 1, characterized in that, The intelligent control cavity (34) is also equipped with a wireless communication module (44) connected to the controller (43). The wireless communication module (44) can establish a data connection with the remote monitoring terminal and transmit the detection data collected by the discharge sensor (40), the first wireless temperature sensor (41) and the second wireless temperature sensor (42) in real time.

8. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 1, characterized in that, It also includes a gas leakage detection module (6), which includes a micro differential pressure sensor (60), a gas concentration sensor (61), a gas flow sensor (62) installed on each of the booster pipes (50), and an audible and visual alarm (63) installed on the outer wall of the box door (11).

9. The intelligent, safe, and environmentally friendly fully insulated ring network switchgear according to claim 1, characterized in that, The inner side of the door (11) is provided with a magnetic sealing strip (112), and the side wall of the outer box (1) corresponding to the closed position of the door (11) is provided with a magnetic adsorption strip (113) that is compatible with the magnetic sealing strip (112).

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