Modularized structure ring main unit capable of conveniently replacing air chamber

Abstract

The invention discloses a modular structure ring main unit capable of conveniently replacing an air chamber, and relates to the technical field of ring main units, the modular structure ring main unit comprises a mechanism box body, a cable chamber body, an ejection sleeve and an air box body, the air box body is detachably installed with the mechanism box body and the cable chamber body through a connecting assembly, and a circuit breaker mechanism is provided with a circuit breaker dynamic sealing interface sleeve. The isolation mechanism body is provided with an isolation dynamic seal interface sleeve, one end of the circuit breaker main shaft is provided with a circuit breaker dynamic seal, the circuit breaker dynamic seal is connected with the circuit breaker dynamic seal interface sleeve, one end of the isolation main shaft is provided with an isolation dynamic seal, and the isolation dynamic seal is connected with the isolation dynamic seal interface sleeve; according to the invention, the damaged gas tank body can be quickly replaced, the gas tank body is simple to disassemble and operate, less working hours are occupied, other mechanisms of the modular structure looped network are not influenced, undamaged parts can be continuously applied, and the mounting and disassembling cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main unit, and in particular to a ring main unit with a modular structure capable of conveniently replacing an air chamber. Background Art

[0002] In order to meet the universal interchangeable use of equipment from different manufacturers within a certain range and for a certain period of time, and to improve the convenience of operation and maintenance of ring network cabinets, State Grid Corporation revised the "Standardized Design Plan for 10 kV Ring Network Cabinets (Boxes)" in 2023. In this context, the ring network equipment of various manufacturers has unified installation dimensions, busbar specifications, analog lines and appearance, and the entire cabinet can be replaced. However, when a fault occurs inside the air chamber of a cabinet and other components do not fail, the entire cabinet needs to be replaced, resulting in a certain degree of waste, and the replacement is difficult and cannot be quick and convenient. Therefore, the present invention proposes a modular structure ring network cabinet that can easily replace the air chamber to solve the shortcomings of the prior art. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a modular ring network cabinet with convenient replacement of air chambers, which can realize rapid replacement of damaged air box bodies. The air box body is separated from the mechanism box body and the cable chamber body by disassembling the connecting components, and then the faulty air box body can be replaced by moving the air box body horizontally. The disassembly operation of the air box body of the present invention is simple and takes very little working hours. The other mechanisms of the modular ring network are not affected, and the undamaged parts can continue to be used, which greatly reduces the cost of installation and disassembly.

[0004] To achieve the above object, the present invention provides the following technical solutions: A modular ring network cabinet with convenient replacement of gas chambers, comprising a mechanism box body, a cable chamber body, an ejector sleeve and a gas box body, wherein a mechanism box body is arranged on one side of the top of the cable chamber body, a gas box body is arranged on the top of the cable chamber body on one side of the mechanism box body, an ejector sleeve is arranged on the top of the gas box body, the gas box body is detachably mounted with the mechanism box body and the cable chamber body through a connecting assembly, a connecting column is arranged between the cable chamber body and the gas box body, a circuit breaker body and an isolating switch body are arranged inside the gas box body, and a circuit breaker body and an isolating switch body are arranged inside the mechanism box body A circuit breaker mechanism and an isolating mechanism body are provided, the circuit breaker mechanism is provided with a circuit breaker dynamic seal interface sleeve, the isolating mechanism body is provided with an isolating dynamic seal interface sleeve, the circuit breaker dynamic seal interface sleeve is adapted to the circuit breaker main shaft position of the circuit breaker body, the isolating dynamic seal interface sleeve is adapted to the isolating main shaft position of the isolating switch body, a circuit breaker dynamic seal is provided at one end of the circuit breaker main shaft, the circuit breaker dynamic seal is connected to the circuit breaker dynamic seal interface sleeve, and an isolating dynamic seal is provided at one end of the isolating main shaft, the isolating dynamic seal is connected to the isolating dynamic seal interface sleeve.

[0005] A further improvement is that a busbar sealing cover is provided on the top of the gas box body, the ejection sleeve is located inside the busbar sealing cover, and an ejection connecting busbar is provided on the ejection sleeve.

[0006] A further improvement is that: the connecting columns are provided with multiple groups, the circuit breaker dynamic seal and the circuit breaker dynamic seal interface sleeve are located between two adjacent groups of connecting columns, and the isolation dynamic seal and the isolation dynamic seal interface sleeve are located between two adjacent groups of connecting columns.

[0007] A further improvement is that: a mounting bolt is provided at the bottom of the mechanism box body, a plurality of mounting bolts are provided, and the mechanism box body is connected to the top of the cable chamber body through the plurality of mounting bolts.

[0008] A further improvement is that the connecting assembly includes a mechanism box fixing bolt group, a cable room front fixing bolt group and a cable room lower fixing bolt group, the air box body is connected to the mechanism box body through the mechanism box fixing bolt group, and the air box body is installed with the cable room body through the cable room front fixing bolt group and the cable room lower fixing bolt group.

[0009] A further improvement is that the ends of the circuit breaker dynamic seal and the isolating dynamic seal are both cylindrical structures, and the inner holes of the circuit breaker dynamic seal interface sleeve and the isolating dynamic seal interface sleeve are hexagonal hole structures.

[0010] A further improvement is that a first switch position adjustment dynamic seal is provided on one side of the gas box body, the first switch position adjustment dynamic seal is adapted to the position of the circuit breaker main shaft, and the first switch position adjustment dynamic seal is connected to the circuit breaker main shaft.

[0011] A further improvement is that a second switch position adjustment dynamic seal is provided on one side of the air box body, the second switch position adjustment dynamic seal is adapted to the isolation main shaft position, and the second switch position adjustment dynamic seal is connected to the isolation main shaft.

[0012] A further improvement is that the ends of the circuit breaker dynamic seal and the isolation dynamic seal are both chamfered structures, and the end length of the isolation dynamic seal is greater than the end length of the circuit breaker dynamic seal.

[0013] The beneficial effects of the present invention are as follows: the modular structure ring network cabinet of the present invention can realize the rapid replacement of the damaged gas box body. The gas box body is separated from the mechanism box body and the cable room body by disassembling the connecting components, and then the faulty gas box body can be replaced by translating the gas box body out of the air. The gas box body of the present invention is easy to disassemble and takes very little man-hours. The other mechanisms of the modular structure ring network are not affected, and the undamaged parts can continue to be used, which greatly reduces the cost of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the circuit breaker dynamic seal and the circuit breaker dynamic seal interface sleeve of the present invention; Figure 3 It is a schematic diagram of the installation structure of the dynamic seal and the isolation dynamic seal interface sleeve of the present invention; Figure 4 It is a three-dimensional schematic diagram of the installation structure of the front fixing bolt group and the lower fixing bolt group of the cable chamber of the present invention.

[0015] Among them: 1. Mechanism box body; 2. Cable room body; 3. Ejector sleeve; 4. Gas box body; 5. Connecting column; 6. Circuit breaker body; 7. Disconnector body; 8. Circuit breaker mechanism; 9. Disconnector mechanism body; 10. Circuit breaker dynamic seal interface sleeve; 11. Disconnector dynamic seal interface sleeve; 12. Connecting assembly; 13. Circuit breaker main shaft; 14. Disconnector main shaft; 15. Circuit breaker dynamic seal; 16. Disconnector dynamic seal; 17. Busbar sealing cover; 18. Ejector connecting busbar; 19. Mounting bolts; 20. Mechanism box fixing bolt group; 21. Cable room front fixing bolt group; 22. Cable room lower fixing bolt group; 23. First switch position adjustment dynamic seal; 24. Second switch position adjustment dynamic seal. DETAILED DESCRIPTION

[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0017] Embodiment 1 according to Figure 1 , 4As shown, this embodiment proposes a modular structure ring network cabinet that can easily replace the gas chamber, including a mechanism box body 1, a cable chamber body 2, an ejector sleeve 3 and a gas box body 4, the cable chamber body 2 is provided with a mechanism box body 1 on one side of the top, the cable chamber body 2 is provided with a gas box body 4 on the top of the mechanism box body 1, the gas box body 4 is provided with an ejector sleeve 3 on the top of the gas box body 4, the gas box body 4 is detachably installed with the mechanism box body 1 and the cable chamber body 2 through a connecting component 12, a connecting column 5 is provided between the cable chamber body 2 and the gas box body 4, a circuit breaker body 6 and an isolating switch body 7 are provided inside the gas box body 4, and a There are a circuit breaker mechanism 8 and an isolation mechanism body 9, the circuit breaker mechanism 8 is provided with a circuit breaker dynamic seal interface sleeve 10, the isolation mechanism body 9 is provided with an isolation dynamic seal interface sleeve 11, the circuit breaker dynamic seal interface sleeve 10 is adapted to the position of the circuit breaker main shaft 13 of the circuit breaker body 6, the isolation dynamic seal interface sleeve 11 is adapted to the position of the isolation main shaft 14 of the isolation switch body 7, one end of the circuit breaker main shaft 13 is provided with a circuit breaker dynamic seal 15, the circuit breaker dynamic seal 15 is connected to the circuit breaker dynamic seal interface sleeve 10, one end of the isolation main shaft 14 is provided with an isolation dynamic seal 16, the isolation dynamic seal 16 is connected to the isolation dynamic seal interface sleeve 11.

[0018] When dismantling the faulty gas box body 4 of the modular ring main unit with conveniently replaced gas chambers of the present invention, the busbar sealing cover 17 is first removed, and then the connection of the top connecting busbar 18 is removed, and then the connecting assembly 12 is removed to separate the mechanism box body 1 from the gas box body 4, and the gas box body 4 from the cable room body 2, and the gas box body 4 is moved out horizontally from the rear to replace the faulty gas box body 4.

[0019] When installing the new gas box body 4, push the new gas box body 4 flatly into the space of the replaced faulty gas box body 4 so that the shaft heads of the circuit breaker dynamic seal 15 and the isolation dynamic seal 16 are just inserted into the holes of the circuit breaker dynamic seal interface sleeve 10 and the isolation dynamic seal interface sleeve 11. After aligning the positions, tighten the connecting assembly 12, the installation of the gas box body 4 is completed, and then fix and push out the connecting busbar 18, and finally install the busbar sealing cover 17, and the replacement of the faulty gas box body 4 is completed.

[0020] A busbar sealing cover 17 is provided on the top of the gas box body 4 , the ejector sleeve 3 is located inside the busbar sealing cover 17 , and an ejector connecting busbar 18 is provided on the ejector sleeve 3 .

[0021] The connecting columns 5 are provided in multiple groups, the circuit breaker dynamic seal 15 and the circuit breaker dynamic seal interface sleeve 10 are located between two adjacent groups of connecting columns 5 , and the isolation dynamic seal 16 and the isolation dynamic seal interface sleeve 11 are located between two adjacent groups of connecting columns 5 .

[0022] The bottom of the mechanism box body 1 is provided with mounting bolts 19 , and a plurality of mounting bolts 19 are provided. The mechanism box body 1 is connected to the top of the cable chamber body 2 via the plurality of mounting bolts 19 .

[0023] The connecting assembly 12 includes a mechanism box fixing bolt group 20, a cable room front fixing bolt group 21 and a cable room lower fixing bolt group 22. The air box body 4 is connected to the mechanism box body 1 through the mechanism box fixing bolt group 20, and the air box body 4 is installed with the cable room body 2 through the cable room front fixing bolt group 21 and the cable room lower fixing bolt group 22.

[0024] Embodiment 2 according to Figure 1-4 As shown, this embodiment proposes a modular structure ring network cabinet that can easily replace the gas chamber, including a mechanism box body 1, a cable chamber body 2, an ejector sleeve 3 and a gas box body 4, the cable chamber body 2 is provided with a mechanism box body 1 on one side of the top, the cable chamber body 2 is provided with a gas box body 4 on the top of the mechanism box body 1, the gas box body 4 is provided with an ejector sleeve 3 on the top of the gas box body 4, the gas box body 4 is detachably installed with the mechanism box body 1 and the cable chamber body 2 through a connecting component 12, a connecting column 5 is provided between the cable chamber body 2 and the gas box body 4, a circuit breaker body 6 and an isolating switch body 7 are provided inside the gas box body 4, and a There are a circuit breaker mechanism 8 and an isolation mechanism body 9, the circuit breaker mechanism 8 is provided with a circuit breaker dynamic seal interface sleeve 10, the isolation mechanism body 9 is provided with an isolation dynamic seal interface sleeve 11, the circuit breaker dynamic seal interface sleeve 10 is adapted to the position of the circuit breaker main shaft 13 of the circuit breaker body 6, the isolation dynamic seal interface sleeve 11 is adapted to the position of the isolation main shaft 14 of the isolation switch body 7, one end of the circuit breaker main shaft 13 is provided with a circuit breaker dynamic seal 15, the circuit breaker dynamic seal 15 is connected to the circuit breaker dynamic seal interface sleeve 10, one end of the isolation main shaft 14 is provided with an isolation dynamic seal 16, the isolation dynamic seal 16 is connected to the isolation dynamic seal interface sleeve 11.

[0025] The ends of the circuit breaker dynamic seal 15 and the isolation dynamic seal 16 are both cylindrical structures, and the inner holes of the circuit breaker dynamic seal interface sleeve 10 and the isolation dynamic seal interface sleeve 11 are hexagonal hole structures. A first switch position adjustment dynamic seal 23 is provided on one side of the gas box body 4, and the first switch position adjustment dynamic seal 23 is adapted to the position of the circuit breaker main shaft 13, and the first switch position adjustment dynamic seal 23 is connected to the circuit breaker main shaft 13. A second switch position adjustment dynamic seal 24 is provided on one side of the gas box body 4, and the second switch position adjustment dynamic seal 24 is adapted to the position of the isolation main shaft 14, and the second switch position adjustment dynamic seal 24 is connected to the isolation main shaft 14. The ends of the circuit breaker dynamic seal 15 and the isolation dynamic seal 16 are both chamfered structures, and the end length of the isolation dynamic seal 16 is greater than the end length of the circuit breaker dynamic seal 15. Since the ends of the circuit breaker dynamic seal 15 and the isolating dynamic seal 16 are cylindrical structures, and the inner holes of the circuit breaker dynamic seal interface sleeve 10 and the isolating dynamic seal interface sleeve 11 are hexagonal hole structures, it is not easy to align and insert the circuit breaker dynamic seal interface sleeve 10 and the isolating dynamic seal interface sleeve 11 at one time, so by setting the first switch position adjustment dynamic seal 23 and the second switch position adjustment dynamic seal 24, it is possible to control the circuit breaker dynamic seal 15 and the isolating dynamic seal 16 to rotate respectively, so that the ends of the circuit breaker dynamic seal 15 and the isolating dynamic seal 16 are adapted to the circuit breaker dynamic seal interface sleeve 10 and the isolating dynamic seal interface sleeve 11, and alignment insertion and installation are achieved. The present invention can further improve the accuracy of the circuit breaker dynamic seal 15 and the isolating dynamic seal 16 when inserting the circuit breaker dynamic seal interface sleeve 10 and the isolating dynamic seal interface sleeve 11 by setting the ends of the circuit breaker dynamic seal 15 and the isolating dynamic seal 16 to be chamfered structures. The arrangement of the end length of the isolation dynamic seal 16 of the present invention being greater than the end length of the circuit breaker dynamic seal 15 can realize first connecting the isolation dynamic seal 16 with the isolation dynamic seal interface sleeve 11, and then docking the circuit breaker dynamic seal 15 with the circuit breaker dynamic seal interface sleeve 10, thereby avoiding the difficulty of simultaneous docking operations and effectively improving the replacement speed of the gas box body 4.

[0026] The modular structure ring network cabinet of the present invention can realize the rapid replacement of the damaged gas box body 4. The gas box body 4 is separated from the mechanism box body 1 and the cable room body 2 by disassembling the connecting assembly 12, and then the faulty gas box body 4 can be replaced by translating the gas box body 4 out of the air. The disassembly operation of the gas box body 4 of the present invention is simple and takes very little man-hours. The other mechanisms of the modular structure ring network are not affected, and the undamaged parts can continue to be used, which greatly reduces the cost of installation and disassembly.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A modular ring main unit with convenient replacement of air chambers, characterized in that: The invention comprises a mechanism box body (1), a cable chamber body (2), an ejector sleeve (3) and an air box body (4); the mechanism box body (1) is provided on one side of the top of the cable chamber body (2); the air box body (4) is provided on the top of the cable chamber body (2) on one side of the mechanism box body (1); the ejector sleeve (3) is provided on the top of the air box body (4); the air box body (4) is detachably mounted with the mechanism box body (1) and the cable chamber body (2) via a connecting assembly (12); a connecting column (5) is provided between the cable chamber body (2) and the air box body (4); a circuit breaker body (6) and an isolating switch body (7) are provided inside the air box body (4); a circuit breaker mechanism (8) and an isolating switch body (7) are provided inside the mechanism box body (1); A mechanism body (9), wherein the circuit breaker mechanism (8) is provided with a circuit breaker dynamic seal interface sleeve (10), the isolation mechanism body (9) is provided with an isolation dynamic seal interface sleeve (11), the circuit breaker dynamic seal interface sleeve (10) is positionally adapted to a circuit breaker main shaft (13) of the circuit breaker body (6), the isolation dynamic seal interface sleeve (11) is positionally adapted to an isolation main shaft (14) of an isolation switch body (7), a circuit breaker dynamic seal (15) is provided at one end of the circuit breaker main shaft (13), the circuit breaker dynamic seal (15) is connected to the circuit breaker dynamic seal interface sleeve (10), and an isolation dynamic seal (16) is provided at one end of the isolation main shaft (14), the isolation dynamic seal (16) is connected to the isolation dynamic seal interface sleeve (11).

2. According to claim 1, a modular ring main unit with convenient replacement of air chambers is characterized in that: A busbar sealing cover (17) is provided on the top of the gas box body (4), the ejector sleeve (3) is located inside the busbar sealing cover (17), and an ejector connecting busbar (18) is provided on the ejector sleeve (3).

3. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: The connecting columns (5) are provided in a plurality of groups, the circuit breaker dynamic seal (15) and the circuit breaker dynamic seal interface sleeve (10) are located between two adjacent groups of connecting columns (5), and the isolation dynamic seal (16) and the isolation dynamic seal interface sleeve (11) are located between two adjacent groups of connecting columns (5).

4. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: The bottom of the mechanism box body (1) is provided with mounting bolts (19), and a plurality of mounting bolts (19) are provided. The mechanism box body (1) is connected to the top of the cable chamber body (2) via the plurality of mounting bolts (19).

5. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: The connecting assembly (12) comprises a mechanism box fixing bolt group (20), a cable chamber front fixing bolt group (21) and a cable chamber lower fixing bolt group (22); the air box body (4) is connected to the mechanism box body (1) via the mechanism box fixing bolt group (20), and the air box body (4) is mounted to the cable chamber body (2) via the cable chamber front fixing bolt group (21) and the cable chamber lower fixing bolt group (22).

6. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: The ends of the circuit breaker dynamic seal (15) and the isolation dynamic seal (16) are both columnar structures, and the inner holes of the circuit breaker dynamic seal interface sleeve (10) and the isolation dynamic seal interface sleeve (11) are hexagonal hole structures.

7. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: A first switch position adjustment dynamic seal (23) is provided on one side of the gas box body (4); the first switch position adjustment dynamic seal (23) is adapted to the position of the circuit breaker main shaft (13), and the first switch position adjustment dynamic seal (23) is connected to the circuit breaker main shaft (13).

8. The modular structure ring main unit with convenient replacement of air chamber according to claim 1, characterized in that: A second switch position adjustment dynamic seal (24) is provided on one side of the air box body (4), the second switch position adjustment dynamic seal (24) is adapted to the position of the isolation main shaft (14), and the second switch position adjustment dynamic seal (24) is connected to the isolation main shaft (14).

9. The modular structure ring main unit with convenient replacement of air chamber according to claim 6, characterized in that: The ends of the circuit breaker dynamic seal (15) and the isolation dynamic seal (16) are both chamfered structures, and the end length of the isolation dynamic seal (16) is greater than the end length of the circuit breaker dynamic seal (15).

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