Intelligent ring main unit based on distributed power distribution terminal

Abstract

The invention discloses an intelligent ring main unit based on a distributed power distribution terminal, and relates to the technical field of ring main units, the intelligent ring main unit comprises a cabinet body, a cabinet door is rotatably installed on the front side of the cabinet body, a containing box is fixedly arranged in the cabinet body, and a plurality of activated carbon blocks are regularly placed in the containing box; and an automatic replacement device for replacing the activated carbon by utilizing gravity is arranged in the cabinet body. The intelligent ring main unit has the advantages that an intelligent ring main unit solution based on a gas insulation medium is constructed through two-stage dehumidification and gravity-driven automatic replacement, the insulation failure risk caused by moisture and the safety risk caused by human errors and environmental factors are remarkably reduced under defense mechanisms such as mechanical interlocking mistake prevention and active environment control, and the safety of the ring main unit is improved. And reliable hardware support is provided for stable operation of the power distribution network.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main units, and in particular to an intelligent ring main unit based on a distributed power distribution terminal. Background Art

[0002] The intelligent ring main unit (RMU) is a key equipment in the distribution network that integrates distribution automation technology, sensor monitoring, intelligent control and other functions. It is mainly used for power distribution and control in urban power grids. Its core function is to realize ring network power supply (multi-power backup) and intelligent management of distribution lines, thereby improving power supply reliability, operation and maintenance efficiency and the level of grid automation.

[0003] Traditional ring main units rely on air insulation, and moisture can easily cause surface discharge. The ring main units that use SF6 gas insulation in existing technologies are expensive and require a sealed design. Liquid insulation coatings are difficult to maintain. Moisture condenses into water droplets and adheres to the surfaces of live components such as insulators, busbars, and switch contacts, resulting in reduced surface insulation strength, which may cause arc discharge or phase-to-phase short circuits. At the same time, when the moisture exceeds the standard, it is necessary to frequently replace activated carbon, clean up condensed water, and even temporarily start external heating equipment, which increases the labor cost of operation and maintenance, increases the risk of personnel operation, and lacks timeliness. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of structural damage caused by high humidity in the ring main unit in the prior art, and to propose an intelligent ring main unit based on a distributed power distribution terminal.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An intelligent ring network cabinet based on a distributed power distribution terminal includes a cabinet body, the cabinet body is filled with insulating gas, a cabinet door is rotatably installed on the front side of the cabinet body, a storage box is fixedly arranged in the cabinet body, a plurality of activated carbons are regularly placed in the storage box, an automatic replacement device for replacing the activated carbon by gravity is provided in the cabinet body, a sensing device is provided in the cabinet body, the sensing device senses the opening and closing of the cabinet door, and shields and reveals the activated carbon in adsorption when the cabinet door is opened and closed, and a secondary control device for use with the automatic replacement device is provided on the outside of the cabinet body. The secondary control device controls secondary dehumidification in the cabinet body when a large amount of condensed water appears on the inner wall of the cabinet.

[0006] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminals, a waste box is fixedly installed in the cabinet body, a torsion spring is installed on the waste box, and a cover plate is installed on the torsion spring.

[0007] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, a leakage hole is opened on the lower surface of the containing box, the width of the leakage hole is greater than the width of one piece of activated carbon and less than the width of two pieces of activated carbon, a threaded rod is rotatably installed in the containing box, a push plate is threadedly installed on one end of the threaded rod, and a belt drive structure 1 and a belt drive structure 2 are installed on the other end of the threaded rod, a mounting ring is installed on the belt drive structure 1, and the mounting ring is rotatably set in the containing box, a connecting shaft is rotatably installed between the cabinet body and the belt drive structure 2, and a gear 2 is fixedly installed on one end of the connecting shaft.

[0008] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, spring 2 is fixedly installed in the containing box, and a pressure plate is fixedly installed at one end of the spring 2. The pressure plate and the push plate cooperate to relatively fix the multiple activated carbon blocks in the containing box. An arc-shaped wedge block 1 is fixedly installed on the side of the mounting ring away from spring 2, and a sliding shaft is slidably installed in the mounting ring. An arc-shaped wedge block 2 used in conjunction with arc-shaped wedge block 1 is fixedly installed at one end of the sliding shaft, and a pull rope is fixedly installed between the sliding shaft and the pressure plate.

[0009] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, the automatic replacement device includes a swivel mounted on one side of the cabinet body, a water storage box is fixedly mounted on one side of the cabinet body, and the swivel is rotatably sleeved on the outside of the water storage box. A plurality of scrapers are evenly fixedly mounted on the outside of the swivel ring, and arc-shaped tooth plates are provided on the plurality of scrapers, which are engaged with gear 2 for use. A placement plate is fixedly mounted on one side of the plurality of scrapers, and a limiting rod is fixedly mounted on the lower surface of the storage box, and a clamping groove is provided in the limiting rod.

[0010] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, the width of the clamping groove is the same as the width of the placement plate, and the clamping groove, the placement plate and the leakage hole are located on the same vertical plane, and the activated carbon at the front end falls through the leakage hole to between the limit rod and the placement plate.

[0011] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, multiple guide rods are fixedly installed around the outer side of the rotating ring, a support member is fixedly installed on one side of the water storage box, a limit block is fixedly installed on the support member, and a push rod is slidably installed on the support member. A spring three is fixedly installed between the push rod and the limit block, and the guide rod is used in conjunction with the push rod. When the gravity of the activated carbon on the placement plate is greater than the tensile elastic force of the spring three and the gravity of the push rod, the guide rod is separated from the push rod to drive the rotating ring to rotate.

[0012] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, a water receiving trough with an opening of 90° is provided on the water storage box, a plurality of flow holes are provided on the rotating ring, and a plurality of the scrapers are provided with guide grooves, and each guide groove is connected to the corresponding flow hole.

[0013] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, the sensing device includes a fixed block fixedly arranged in the cabinet body, a spring 1 is fixedly installed on one side of the fixed block, a gear rod is fixedly installed on one end of the spring 1, the gear rod is slidably arranged in the cabinet body, one end of the gear rod is against the cabinet door, two fixed plates are fixedly installed in the cabinet body, a rotating shaft is installed between the two fixed plates for common rotation, a gear 1 is fixedly installed on the lower end of the rotating shaft, and the gear 1 is meshed with the gear rod 1, and a shielding cover is fixedly installed on the rotating shaft.

[0014] In the above-mentioned intelligent ring network cabinet based on distributed power distribution terminal, the secondary control device includes a collection box fixedly installed on the outside of the cabinet, a heater is electrically connected inside the cabinet, a float is placed in the collection box, a float rod is fixedly installed on the float, and the float rod slides through the collection box, a switch electrically connected is installed on the outside of the cabinet, a conduit is fixedly connected to one side of the water storage box, and the conduit passes through the cabinet and is connected to the collection box. When the water level in the water storage box rises, the float and the float rod move up to trigger the switch to control the heater to turn on the cabinet to heat the cabinet.

[0015] Compared with existing technologies, the advantages of the present invention are: the present invention constructs an intelligent ring network cabinet solution based on gas insulation medium through two-stage dehumidification and gravity-driven automatic replacement. Under the defense mechanisms such as mechanical interlocking anti-error and active environmental control, it significantly reduces the risk of insulation failure caused by moisture and the safety risks caused by human errors and environmental factors, providing reliable hardware support for the stable operation of the distribution network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an intelligent ring main unit based on a distributed power distribution terminal proposed by the present invention; Figure 2 A schematic diagram of the structure of the present invention showing another perspective; Figure 3 This is a schematic diagram of the structure inside the cabinet of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of part a is enlarged; Figure 5 Schematic diagram of the structure of the gear rod in the present invention; Figure 6 Schematic diagram of the structure of the shielding cover in the present invention; Figure 7 Schematic diagram of the structure of the limit rod and the float in the present invention; Figure 8 For the present invention Figure 7 A top view of Figure 9For the present invention Figure 8 Structural cross-sectional view along the AA direction; Figure 10 Schematic diagram of the structure of the arc wedge block 1 and the arc wedge block 2 in the present invention; Figure 11 It is a structural schematic diagram of the placement plate and scraper in the present invention.

[0017] In the figure: 1. cabinet body; 2. cabinet door; 3. waste box; 4. holding box; 5. shielding cover; 6. gear rod; 7. gear 1; 8. spring 1; 9. fixing block; 10. fixing plate; 11. rotating shaft; 12. limiting rod; 13. collecting box; 14. floating ball; 15. placing plate; 16. floating rod; 17. scraper; 18. activated carbon; 19. threaded rod; 20. push plate; 21. belt transmission structure 1; 22. belt transmission structure 2; 23. gear 2; 24. push rod; 25. pressure plate; 26. spring 2; 27. pull rope; 28. mounting ring; 29. ​​arc wedge block 1; 30. arc wedge block 2; 31. sliding shaft; 32. guide rod; 33. swivel; 34. water storage box; 35. conduit; 36. guide groove; 37. arc gear plate; 38. spring 3; 39. support member. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figure 1 、 Figure 7-11 , an intelligent ring network cabinet based on a distributed power distribution terminal, including a cabinet body 1, the interior of the cabinet body 1 is a sealed structure, a cabinet door 2 is rotatably installed on the front side of the cabinet body 1, and the cabinet door 2 needs to close the grounding switch when opening to ensure safe use. A storage box 4 is fixedly provided in the cabinet body 1, and multiple pieces of activated carbon 18 are placed in parallel in the storage box 4. A box cover (not shown in the figure) is snap-fitted on the storage box 4, and the activated carbon 18 is placed therein by opening the box cover. The cabinet body 1 is filled with insulating gas (such as SF. or dry air), and the gas dryness is maintained by the activated carbon 18 adsorption system. An automatic replacement device for replacing the activated carbon 18 using gravity is provided in the cabinet body 1, and a leakage hole is opened on the lower surface of the storage box 4. The width of the leakage hole is greater than the width of one piece of activated carbon 18 and less than the width of two pieces of activated carbon 18, ensuring that only one piece of activated carbon 18 falls at a time to avoid accumulation and clogging of multiple pieces during replacement.

[0020] A threaded rod 19 is rotatably mounted in the container box 4. A push plate 20 is threadedly mounted on one end of the threaded rod 19. The push plate 20 is arranged in a spliced ​​form. The spliced ​​engagement of the push plate 20 allows the push plate 20 to be threadedly mounted on the threaded rod 19. When the threaded rod 19 drives the push plate 20 to move to the end, the push plate 20 can be reused by simply breaking it apart and reinstalling it on the end of the threaded rod 19. The other end of the threaded rod 19 is mounted with a belt drive structure 1 21 and a belt drive structure 2 22 (both of which are composed of two existing pulleys and belts, and the details will not be elaborated on). A mounting ring 28 is mounted on the belt drive structure 1 21, and the mounting ring 28 is rotatably mounted in the container box 4. A connecting shaft is rotatably mounted between the cabinet body 1 and the belt drive structure 2 22. A gear 23 is fixedly mounted on one end of the connecting shaft. A spring 26 is fixedly mounted in the container box 4. A pressure plate 25 is fixedly mounted on one end of the spring 26. The pressure plate 25 cooperates with the push plate 20 to press the container box. 4 are relatively fixed, and an arc-shaped wedge block 1 29 is fixedly installed on the side of the mounting ring 28 away from the spring 26. A sliding shaft 31 is slidably installed in the mounting ring 28, and an arc-shaped wedge block 20 30 used in conjunction with the arc-shaped wedge block 1 29 is fixedly installed on one end of the sliding shaft 31. A pull rope 27 is fixedly installed between the sliding shaft 31 and the pressure plate 25. The height difference between the arc-shaped wedge block 20 30 and the arc-shaped wedge block 1 29 is greater than the width of the leak hole and less than the length of the spring 26 to prevent the spring 26 from being damaged by extreme compression when the pull rope 27 is stretched.

[0021] When the threaded rod 19 rotates, it will drive the push plate 20 to push the activated carbon 18 forward. At this time, the activated carbon 18 near the leak hole will gradually squeeze the pressure plate 25 and will not fall off under the action of the restoring elastic force of the spring 26. When the threaded rod 19 rotates to 145 degrees, the threaded rod 19 will drive the mounting ring 28 to rotate through the belt transmission structure 1 21. The mounting ring 28 rotates through the arc wedge block 1 29 to contact the arc wedge block 2 30. The arc wedge block 1 29 squeezes the arc wedge block 2 30. With the cooperation of the wedge surface, the arc wedge block 2 30 slides in the mounting ring 28. The arc wedge block 2 30 slides The pull rope 27 drives the pressure plate 25 to squeeze the spring 26 to compress it. At this time, the activated carbon 18 at the front end just reaches the top of the leak hole with the thrust of the push plate 20, and the pressure plate 25 no longer squeezes and clamps the activated carbon 18. At this time, the activated carbon 18 falls down along the leak hole. When the threaded rod 19 rotates to 180°, the arc wedge 1 29 and the arc wedge 2 30 are separated. The pressure plate 25 clamps and fixes the activated carbon 18 in the containing box 4 again with the elastic force of the spring 2 26 in the shortest time, preventing the activated carbon 18 from being disordered and stuck in the containing box 4.

[0022] The automatic replacement device includes a swivel 33 rotatably mounted on one side of the cabinet 1, a water storage box 34 is fixedly mounted on one side of the cabinet 1, and the swivel 33 is rotatably sleeved around the outside of the water storage box 34. A plurality of scrapers 17 are evenly fixedly mounted around the outside of the swivel 33. The distance between two adjacent scrapers 17 is 90 degrees. The plurality of scrapers 17 are provided with arc-shaped tooth plates 37. The arc-shaped tooth plates 37 are engaged with the gear 2 23. The plurality of scrapers 17 rotate clockwise (to Figure 9 For reference in direction), multiple scrapers 17 are fitted and rotated on the inner wall of the cabinet 1, and the lower right corner of the area formed by the rotation will not fit with the scraper 17 (the area on the lower right of the scraper 17 in the horizontal direction) to prevent the water scraped by the scraper 17 at this place from dripping along the inner wall. A placement plate 15 is fixedly installed on one side of the multiple scrapers 17, and the height of the side of the placement plate 15 is higher than the height of the rest of the part. This setting can prevent the activated carbon 18 from falling. A limiting rod 12 is fixedly installed on the lower surface of the holding box 4, and a clamping groove is opened in the limiting rod 12. The width of the clamping groove is the same as the width of the placement plate 15, and the clamping groove, the placement plate 15 and the leakage hole are located on the same vertical plane. The activated carbon 18 at the front end falls through the leakage hole to between the limiting rod 12 and the placement plate 15.

[0023] A plurality of guide rods 32 are evenly fixedly installed around the outer side of the swivel 33, and the adjacent guide rods 32 are set at 90 degrees. A support member 39 is fixedly installed on one side of the water storage box 34, and the support member 39 passes through the swivel 33 and is fixedly connected to the water storage box 34. A limiting block is fixedly installed on the support member 39, and a push rod 24 is slidably installed on the support member 39. A spring three 38 is fixedly installed between the push rod 24 and the limiting block, and the guide rod 32 is used in conjunction with the push rod 24. When the gravity of the activated carbon 18 on the placement plate 15 is greater than the tensile elastic force of the spring three 38 and the gravity of the push rod 24, the guide rod 32 disengages from the push rod 24 and drives the swivel 33 to rotate. A waste box 3 is fixedly installed in the cabinet 1, and a torsion spring is installed on the waste box 3, and a cover plate is installed on the torsion spring.

[0024] The activated carbon 18 in the leak hole will fall onto the placement plate 15 between the limit rod 12 and the rotating ring 33 under the action of gravity. When the activated carbon 18 absorbs the moisture in the cabinet 1 to a certain weight (the specific weight depends on the maximum adsorption capacity of the activated carbon 18), the gravity of the activated carbon 18 is greater than the sum of the gravity of the push rod 24 and the required tensile force of the spring three 38. At this time, the guide rod 32 lifts the push rod 24 upward, and the push rod 24 moves upward. As the gravity of the activated carbon 18 causes the multiple placement plates 15 to rotate, the spring three 38 is stretched (the value of the sum of the elastic force that the spring three 38 can stretch and the gravity of the push rod 24 is set to be less than the value of a single activated carbon The setting of the adsorption weight of 18 has a better dehumidification effect, and can ensure that each piece can be replaced when it has no adsorption capacity or reaches the maximum adsorption capacity in advance, to prevent the situation where the activated carbon 18 has no adsorption capacity but is still working). The rotation of multiple placement plates 15 drives multiple scrapers 17 to rotate at the same time. The rotation of multiple scrapers 17 realizes the rotation of gear 2 23 and the connecting shaft through the engagement of the arc-shaped tooth plate 37 and gear 2 23. The rotation of the connecting shaft drives the threaded rod 19 to rotate again through the belt transmission structure 2 22. The rotation of the threaded rod 19 can realize the falling of the activated carbon 18, so that it can adsorb the moisture in the cabinet 1 again, and realize automatic replacement processing.

[0025] Reference Figures 1-6 , a sensing device is provided in the cabinet 1, which senses the opening and closing of the cabinet door 2, and shields and reveals the activated carbon 18 in adsorption when the cabinet door 2 is opened and closed. The sensing device includes a fixed block 9 fixedly provided in the cabinet 1, a spring 8 is fixedly installed on one side of the fixed block 9, a gear rod 6 is fixedly installed on one end of the spring 8, the gear rod 6 is slidably provided in the cabinet 1, and one end of the gear rod 6 is against the cabinet door 2. Two fixed plates 10 are fixedly provided in the cabinet 1, and a rotating shaft 11 is installed between the two fixed plates 10 for common rotation. A gear 7 is fixedly provided at the lower end of the rotating shaft 11, and the gear 7 is meshed with the gear rod 6. A shielding cover 5 is fixedly provided on the rotating shaft 11. When the cabinet 1 needs to be repaired or needs When replacing the activated carbon 18, when the cabinet door 2 is opened, the gear rod 6 slides under the elastic force of the spring 8. At this time, the gear rod 6 drives the gear 7 to rotate, and the rotation of the gear 7 drives the shielding cover 5 to rotate through the rotating shaft 11 to shield the activated carbon 18 on the placement plate 15 (when the cabinet door 2 is opened, the interior of the cabinet body 1 is directly connected to the outside air, and high-humidity air in the environment may rush in rapidly. If the activated carbon 18 is in an exposed state, it will quickly absorb external moisture and become saturated, shortening its effective service life. At the same time, the activated carbon 18 may fall due to vibration or absorb harmful substances (such as metal dust) on the surface. Covering can avoid direct contact with operation and maintenance personnel, reducing the risk of skin irritation or accidental inhalation).

[0026] A secondary control device is provided on the outside of the cabinet 1 for use with the automatic replacement device. When a large amount of condensed water appears on the inner wall of the cabinet 1, the secondary control device controls the cabinet 1 to perform secondary dehumidification (the water vapor in the air in the cabinet 1 condenses into water droplets when it is cooled and adheres to the inner wall of the water storage box 34). The water storage box 34 is provided with a water receiving trough with a 90° opening. The opening of the water receiving trough is connected to the top and leftmost scrapers 17. A plurality of flow holes are provided on the rotating ring 33, and a plurality of scrapers 17 are provided with guide grooves 36. Each guide groove 36 is connected to the corresponding flow hole. The part of the scraper 17 where the guide groove 36 is set is inclined and beveled, and the end of the scraper 17 is "L"-shaped, which can prevent the scraped water from dripping along its end, ensuring the safety of use in the cabinet 1. (The side of the simulated knife can effectively scrape off the condensed water on the inner wall of the cabinet 1, and the bevel setting can ensure that the water in the guide groove 36 of the scraper 17 in the horizontal state can enter the flow hole along its surface), preventing moisture from affecting the internal insulating gas.

[0027] The secondary control device includes a collection box 13 fixedly mounted on the outside of the cabinet 1, a heater electrically connected inside the cabinet 1, a float 14 placed in the collection box 13, a float rod 16 fixedly mounted on the float 14, and the float rod 16 slides through the collection box 13, an electrically connected switch is installed on the outside of the cabinet 1, a conduit 35 is fixedly connected to one side of the water storage box 34, and the conduit 35 passes through the cabinet 1 and is connected to the collection box 13. When the condensed water in the water storage box 34 flows into the collection box 13 outside the cabinet 1 through the conduit 35, the water level gradually rises, the float 14 floats with the water level, and drives the float rod 16 to move upward. When the water level reaches the set threshold, the float rod 16 triggers the switch outside the cabinet 1 and turns on the power of the heater. After the heater is started, the air inside the cabinet 1 is heated to increase the temperature to reduce the relative humidity (increase the dew point temperature), prevent condensation on the surface of the equipment, and accelerate the evaporation of residual water vapor. Set the working time of the heater after the switch is triggered to realize the timed operation of the heater. After the heater is working, a red reminder button is set on the surface of the equipment to remind personnel to drain the water in the collection box 13, or install an electric control valve on the collection box 13. When the heater is working, the electric control valve opens, the water in the collection box 13 is discharged, the float 14 is reset, the switch is disconnected, and the heater stops working after working for the set time.

[0028] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0029] The specific operation steps of the present invention are as follows: Replace the activated carbon 18: In the initial state, one of the activated carbon 18 is working on the placement plate 15. When the activated carbon 18 absorbs the moisture in the cabinet 1 and reaches the maximum adsorption weight, the gravity of the activated carbon 18 is greater than the sum of the gravity of the push rod 24 and the tensile force required by the spring three 38. At this time, the guide rod 32 lifts the push rod 24 upward, and the push rod 24 moves upward. As the gravity of the activated carbon 18 causes the multiple placement plates 15 to rotate, the spring three 38 is stretched, and the rotation of the multiple placement plates 15 drives the multiple scrapers 17 to rotate at the same time. The rotation of the multiple scrapers 17 realizes the rotation of the gear two 23 and the connecting shaft through the meshing of the arc-shaped tooth plate 37 and the gear two 23. The rotation of the connecting shaft drives the threaded rod 19 to rotate through the belt transmission structure two 22. When the threaded rod 19 rotates, it will drive the push plate 20 to push the activated carbon 18 forward. At this time, the activated carbon 18 near the leak hole will gradually squeeze the pressure plate 25, and will not fall under the action of the recovery elastic force of the spring two 26. When the threaded rod 19 rotates When the angle reaches 145°, the threaded rod 19 drives the mounting ring 28 to rotate through the belt transmission structure 1 21. The mounting ring 28 rotates and contacts the arc wedge 1 29 with the arc wedge 2 30. The arc wedge 1 29 squeezes the arc wedge 2 30. With the cooperation of the wedge surface, the arc wedge 2 30 slides in the mounting ring 28. The arc wedge 2 30 slides through the pull rope 27 to drive the pressure plate 25 to squeeze the spring 2 26 to compress it. At this time, the activated carbon 18 at the front end just follows the thrust of the push plate 20. When the activated carbon 18 reaches the top of the leak hole, the pressing plate 25 no longer squeezes and clamps the activated carbon 18, and the activated carbon 18 falls downward along the leak hole. When the threaded rod 19 rotates to 180 degrees, the arc wedge 1 29 and the arc wedge 2 30 separate, and the pressing plate 25 clamps and fixes the activated carbon 18 in the holding box 4 again with the elastic force of the spring 2 26 in the shortest time, preventing the activated carbon 18 from being disordered or stuck in the holding box 4, thereby realizing automatic replacement of the activated carbon 18. When the humidity in the cabinet 1 is heavy: at this time, the scraper 17 rotates to scrape off the condensed water generated on the inner wall of the cabinet 1. The condensed water flows into the water storage box 34 along the guide groove 36 and flow hole on the scraper 17, and enters the collection box 13 through the conduit 35. At this time, the water level in the collection box 13 gradually rises, and the float 14 floats with the water level, driving the float rod 16 to move upward. When the water level reaches the set threshold, the float rod 16 triggers the switch on the outside of the cabinet 1 and turns on the power of the heater. After the heater is started, it heats the air inside the cabinet 1, raising the temperature to reduce the relative humidity (increase the dew point temperature), prevents condensation on the surface of the equipment, and accelerates the evaporation of residual water vapor. The working time of the heater after the switch is triggered is set to realize the timed operation of the heater. When the heater is working, the electric control valve is opened, the water in the collection box 13 is discharged, the float 14 is reset, the switch is disconnected, and the heater stops working after working for the set time, continuously ensuring the dryness of the cabinet 1 and ensuring the insulation performance of the internal structure.

[0030] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An intelligent ring network cabinet based on a distributed power distribution terminal, comprising a cabinet body (1), wherein the cabinet body (1) is filled with insulating gas, characterized in that: The cabinet (1) is provided with a cabinet door (2) rotatably mounted on the front side, a storage box (4) is fixedly provided in the cabinet (1), a plurality of activated carbons (18) are regularly placed in the storage box (4), an automatic replacement device for replacing the activated carbons (18) by gravity is provided in the cabinet (1), a sensing device is provided in the cabinet (1), the sensing device senses the opening and closing of the cabinet door (2), and shields and reveals the activated carbons (18) being adsorbed when the cabinet door (2) is opened and closed, and a secondary control device for use with the automatic replacement device is provided on the outside of the cabinet (1), and the secondary control device controls the cabinet (1) to perform secondary dehumidification when a large amount of condensed water appears on the inner wall of the cabinet (1).

2. The intelligent ring main unit based on distributed power distribution terminal according to claim 1, characterized in that: A waste box (3) is fixedly installed in the cabinet (1), a torsion spring is installed on the waste box (3), and a cover plate is installed on the torsion spring.

3. The intelligent ring main unit based on distributed power distribution terminal according to claim 1, characterized in that: A leakage hole is provided on the lower surface of the containing box (4), the width of the leakage hole being greater than the width of one piece of activated carbon (18) and less than the width of two pieces of activated carbon (18). A threaded rod (19) is rotatably installed in the containing box (4), a push plate (20) is threadedly installed on one end of the threaded rod (19), a belt transmission structure 1 (21) and a belt transmission structure 2 (22) are installed on the other end of the threaded rod (19), a mounting ring (28) is mounted on the belt transmission structure 1 (21), and the mounting ring (28) is rotatably arranged in the containing box (4), a connecting shaft is rotatably installed between the cabinet (1) and the belt transmission structure 2 (22), and a gear 2 (23) is fixedly mounted on one end of the connecting shaft.

4. The intelligent ring main unit based on distributed power distribution terminal according to claim 3, characterized in that: A second spring (26) is fixedly installed in the containing box (4), and a pressure plate (25) is fixedly installed at one end of the second spring (26). The pressure plate (25) cooperates with the push plate (20) to relatively fix the multiple activated carbons (18) in the containing box (4). An arc-shaped wedge block (29) is fixedly installed on the side of the mounting ring (28) away from the second spring (26). A sliding shaft (31) is slidably installed in the mounting ring (28), and an arc-shaped wedge block (30) used in conjunction with the arc-shaped wedge block (29) is fixedly installed at one end of the sliding shaft (31). A pull rope (27) is fixedly installed between the sliding shaft (31) and the pressure plate (25).

5. The intelligent ring main unit based on distributed power distribution terminal according to claim 4, characterized in that: The automatic replacement device comprises a rotating ring (33) rotatably mounted on one side of the cabinet (1), a water storage box (34) is fixedly mounted on one side of the cabinet (1), and the rotating ring (33) is rotatably sleeved around the outer side of the water storage box (34), a plurality of scrapers (17) are evenly fixedly mounted around the outer side of the rotating ring (33), the plurality of scrapers (17) are each provided with an arc-shaped tooth plate (37), the arc-shaped tooth plate (37) is engaged with the gear 2 (23), and a placement plate (15) is fixedly mounted on one side of the plurality of scrapers (17), a limit rod (12) is fixedly mounted on the lower surface of the storage box (4), and a clamping groove is provided in the limit rod (12).

6. The intelligent ring main unit based on distributed power distribution terminal according to claim 5, characterized in that: The width of the clamping groove is the same as the width of the placement plate (15), and the clamping groove, the placement plate (15) and the leakage hole are located on the same vertical plane, and the activated carbon (18) at the front end falls through the leakage hole to between the limiting rod (12) and the placement plate (15).

7. The intelligent ring main unit based on distributed power distribution terminal according to claim 5, characterized in that: A plurality of guide rods (32) are fixedly mounted around the outer periphery of the rotating ring (33), a support member (39) is fixedly mounted on one side of the water storage box (34), a limit block is fixedly mounted on the support member (39), a push rod (24) is slidably mounted on the support member (39), a spring three (38) is fixedly mounted between the push rod (24) and the limit block, and the guide rod (32) cooperates with the push rod (24) for use. When the weight of the activated carbon (18) on the placement plate (15) is greater than the tensile elastic force of the spring three (38) and the weight of the push rod (24), the guide rod (32) is separated from the push rod (24) to drive the rotating ring (33) to rotate.

8. The intelligent ring main unit based on distributed power distribution terminal according to claim 5, characterized in that: The water storage box (34) is provided with a water receiving groove with an opening of 90 degrees, the rotating ring (33) is provided with a plurality of flow holes, and the plurality of scrapers (17) are provided with guide grooves (36), and each guide groove (36) is connected to a corresponding flow hole.

9. The intelligent ring main unit based on distributed power distribution terminal according to claim 1, characterized in that: The sensing device comprises a fixed block (9) fixedly arranged in the cabinet (1), a spring (8) fixedly installed on one side of the fixed block (9), a gear rod (6) fixedly installed on one end of the spring (8), the gear rod (6) slidingly arranged in the cabinet (1), one end of the gear rod (6) abutting against the cabinet door (2), two fixed plates (10) fixedly installed in the cabinet (1), a rotating shaft (11) being installed between the two fixed plates (10) for common rotation, a gear (7) fixedly installed on the lower end of the rotating shaft (11), and the gear (7) meshing with the gear rod (6), and a shielding cover (5) fixedly installed on the rotating shaft (11).

10. The intelligent ring main unit based on distributed power distribution terminal according to claim 7, characterized in that: The secondary control device comprises a collection box (13) fixedly mounted on the outside of the cabinet (1), a heater electrically connected to the cabinet (1), a float (14) placed in the collection box (13), a float rod (16) fixedly mounted on the float (14), and the float rod (16) slides through the collection box (13), a switch electrically connected is mounted on the outside of the cabinet (1), a conduit (35) is fixedly connected to one side of the water storage box (34), and the conduit (35) penetrates the cabinet (1) and is connected to the collection box (13), when the water level in the water storage box (34) rises, the float (14) and the float rod (16) move upward, triggering the switch to control the heater to start heating the cabinet (1).

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