Environment-friendly gas insulation ring main unit

Abstract

The utility model relates to the technical field of ring main units, and discloses an environment-friendly gas insulation ring main unit, which comprises a ring main unit, two side walls of the ring main unit are both provided with a plurality of heat dissipation ports, two inner sides of the ring main unit are both fixedly connected with mounting racks, the two mounting racks are respectively corresponding to the heat dissipation ports at two sides of the ring main unit, and the ring main unit is provided with a plurality of heat dissipation ports. A drying box in which a granular drying agent is stored is fixedly connected to the inner side of the mounting frame, a plurality of electric heating wires for drying the drying agent which is saturated after water absorption are arranged in the drying box, and a first stirring assembly and a second stirring assembly which are used for stirring the drying agent are arranged in the ring main unit. In a working state, the environment-friendly gas insulation ring main unit provided by the utility model can timely dry and reuse the drying agent which is saturated by absorbing water, thereby preventing the performance of components from being influenced by water vapor, improving the working reliability of equipment, prolonging the service life of the equipment, and reducing the maintenance cost and workload of the ring main unit.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinets, in particular to an environmentally friendly gas-insulated ring network cabinet. Background Art

[0002] A ring main unit is a group of electrical equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core part uses load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises.

[0003] The environment-friendly gas-insulated ring main unit in the prior art is filled with electrical equipment. In order to prevent water vapor from invading the cabinet and causing damage to components in a humid environment, a desiccant is generally placed inside the ring main unit. In the humid environment of the continuous rainy season, the water vapor in the air is very high, and the desiccant is easily saturated with moisture. Once the desiccant is saturated, its drying effect will be weakened or even fail, and it will be unable to effectively prevent water vapor from entering the equipment. The humid environment will cause electrical equipment to become damp, insulation will be reduced, and the risk of corrosion and failure will increase, thereby increasing the possibility of equipment damage, which will increase the maintenance cost and workload of the ring main unit.

[0004] Therefore, it is necessary to design an environmentally friendly gas insulated ring main unit to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an environmentally friendly gas-insulated ring network cabinet.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An environmentally friendly gas-insulated ring network cabinet comprises a ring network cabinet, wherein both side walls of the ring network cabinet are provided with a plurality of heat dissipation openings, both inner sides of the ring network cabinet are fixedly connected with mounting frames, the two mounting frames respectively correspond to the heat dissipation openings on both sides of the ring network cabinet, a drying box in which granular desiccant is stored is fixedly connected to the inner side of the mounting frame, a plurality of electric heating wires for drying the desiccant after being saturated with water are arranged inside the drying box, and a stirring component 1 and a stirring component 2 for stirring the desiccant are arranged inside the ring network cabinet.

[0008] As a preferred technical solution of the utility model, the stirring component 1 includes a plurality of hollow rotating shafts arranged in the drying box, the heating wire is located inside the rotating shaft, a plurality of stirring blades are fixedly connected to the side wall of the rotating shaft, a motor is fixedly connected to the side wall of the mounting frame, a worm is rotatably connected to the inner side of the mounting frame, the output shaft end of the motor is axially connected to one end of the worm, a disc is provided above the rotating shaft, the disc passes through the top surface of the drying box, and the disc is rotatably connected to the drying box, a connecting shaft is fixedly connected to the disc, a worm wheel is fixedly sleeved on the connecting shaft, and all the worm wheels are meshed with the worm.

[0009] As a preferred technical solution of the utility model, the stirring component 2 includes two fixed plates fixedly connected to the side walls of the rotating shaft, a magnetic block 1 is fixedly connected to the fixed plate, two sliding grooves are provided on the lower surface of the disc, the end of the magnetic block 1 away from the fixed plate is located inside the sliding groove, and the magnetic block 1 is slidably connected to the fixed plate, a spring is provided between the magnetic block 1 and the inner bottom surface of the sliding groove, and two magnetic blocks 2 corresponding to the positions of the two magnetic blocks 1 are provided above the disc, and the magnetic block 2 is fixed to the worm.

[0010] As a preferred technical solution of the utility model, the heating wire has a spiral structure.

[0011] As a preferred technical solution of the present utility model, a humidity sensor is installed on the inner side of the ring network cabinet.

[0012] As a preferred technical solution of the utility model, the longitudinal section of the stirring blade is a cross-shaped structure, and the stirring blade is made of elastic rubber.

[0013] The utility model has the following beneficial effects:

[0014] 1. Reuse of desiccant: By setting up electric heating wire, the wet desiccant after absorbing water can be dried, which can effectively evaporate the water in the saturated desiccant and restore it to a dry state, thereby realizing the reuse of the desiccant, which can reduce maintenance costs and avoid frequent replacement of desiccant;

[0015] 2. Prevent the intrusion of water vapor: Through the process of drying and stirring, the moisture in the desiccant is removed in time to prevent the desiccant from failing. This can ensure a dry environment inside the equipment, prevent the influence of water vapor on the performance of components, improve the working reliability and life of the equipment, and reduce the maintenance cost and workload of the ring network cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an environmentally friendly gas-insulated ring main unit proposed by the utility model;

[0017] Figure 2for Figure 1 A magnified view of the structure at A;

[0018] Figure 3 It is a schematic diagram of the structure inside the drying box, including an enlarged view of the local structure of the stirring blade and the disc;

[0019] Figure 4 Schematic diagram of the internal structure of the disc and the shaft.

[0020] In the figure: 1 ring main unit, 2 heat dissipation port, 3 mounting frame, 4 drying box, 5 heating wire, 6 rotating shaft, 7 stirring blade, 8 worm, 9 connecting shaft, 10 worm gear, 11 disc, 12 motor, 13 magnetic block 1, 14 spring, 15 slide slot, 16 fixing plate, 17 magnetic block 2, 18 humidity sensor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 , an environmentally friendly gas insulated ring network cabinet, comprising a ring network cabinet 1, both side walls of the ring network cabinet 1 are provided with a plurality of heat dissipation ports 2, both inner sides of the ring network cabinet 1 are fixedly connected with mounting frames 3, the two mounting frames 3 respectively correspond to the heat dissipation ports 2 on both sides of the ring network cabinet 1, the inner side of the mounting frame 3 is fixedly connected with a drying box 4 in which a granular desiccant is stored, it is worth mentioning that the desiccant is a silica gel desiccant, which is a non-toxic, odorless and chemically stable material, and can be reused after drying, so that no replacement is required to reduce costs, and at the same time, no pollution is caused to the environment, the drying box 4 is provided with a through hole with a diameter smaller than the diameter of the granular desiccant for air to pass through, the interior of the drying box 4 is provided with a plurality of electric heating wires 5 for drying the desiccant after saturation with water, and the interior of the ring network cabinet 1 is provided with a stirring component 1 and a stirring component 2 for stirring the desiccant.

[0023] Reference Figure 2 and Figure 3The stirring component 1 includes a plurality of hollow rotating shafts 6 arranged in the drying box 4, the heating wire 5 is located inside the rotating shaft 6, and a plurality of stirring blades 7 are fixedly connected to the side wall of the rotating shaft 6. The side wall of the mounting frame 3 is fixedly connected to a motor 12. The start and stop of the motor 12 and the switch of the heating wire 5 are remotely controlled by the controller. The inner side of the mounting frame 3 is rotatably connected to a worm 8, and the output shaft end of the motor 12 is axially connected to one end of the worm 8. A disc 11 is provided above the rotating shaft 6, and the disc 11 passes through the top surface of the drying box 4, and the disc 11 is rotatably connected to the drying box 4. A connecting shaft 9 is fixedly connected to the disc 11, and a worm gear 10 is fixedly sleeved on the connecting shaft 9. All the worm gears 10 are meshed with the worm 8. The stirring blades 7 can break up the desiccant that absorbs water and adheres to each other as the rotating shaft 6 rotates, thereby ensuring the drying quality and drying efficiency of the desiccant, and thus effectively preventing water vapor from invading the cabinet in a humid environment.

[0024] Reference Figure 2 and Figure 4 The stirring component 2 includes two fixed plates 16 fixedly connected to the side walls of the rotating shaft 6, and a magnetic block 13 is fixedly connected to the fixed plate 16. Two slide grooves 15 are provided on the lower surface of the disc 11. One end of the magnetic block 13 away from the fixed plate 16 is located inside the slide groove 15, and the magnetic block 13 is slidably connected to the fixed plate 16. A spring 14 is provided between the magnetic block 13 and the inner bottom surface of the slide groove 15. Two magnetic blocks 17 corresponding to the positions of the two magnetic blocks 13 are provided above the disc 11. The magnetic block 17 is fixed to the worm 8. Under the cooperation of the magnetic blocks 13 and 17, the rotating shaft 6 and the stirring blade 7 can move up and down, which can increase the stirring range of the stirring blade 7, so that the desiccant can be fully and evenly dispersed, thereby ensuring the drying effect of the desiccant and improving the moisture-proof function of the device for components.

[0025] Reference Figure 4 The heating wire 5 has a spiral structure, which increases the contact area between the heating wire 5 and the rotating shaft 6, so that the rotating shaft 6 is evenly heated, and then the heat is fully transferred to the desiccant.

[0026] Reference Figure 1 A humidity sensor 18 is installed on the inner side of the ring main unit 1. The humidity sensor 18, the heating wire 5 switch and the motor 12 are all connected through a PLC controller. The specific connection method and internal structure are not the innovative part of the utility model, and will not be described in detail here. In this way, the purpose of automatically drying the desiccant can be achieved in a humid environment, reducing the process of manual intervention and thus reducing the workload of the staff.

[0027] Reference Figure 3The longitudinal section of the stirring blade 7 is a cross-shaped structure, which increases the contact area between the stirring blade 7 and the desiccant. When the stirring blade 7 rotates with the rotating shaft 6 and moves up and down, it can fully contact the desiccant to ensure the mixing effect of the desiccant. The stirring blade 7 is made of elastic rubber to prevent the stirring blade 7 from damaging the structure of the desiccant.

[0028] The specific working principle of the utility model is as follows:

[0029] When the ring main unit 1 is in a humid environment, the staff starts the motor 12 and energizes the heating wire 5 to generate heat to dry the desiccant in a wet state after absorbing water. The output shaft of the motor 12 rotates to drive the worm 8 to rotate, so that all the worm gears 10 rotate, and then drive the connecting shaft 9, the disc 11 and the slide 15 to rotate. Under the limiting effect of the slide 15 on the magnetic block 13, the magnetic block 13, the rotating shaft 6 and the stirring blade 7 rotate. The stirring blade 7 can stir and disperse the wet desiccant that sticks together, so that the heat emitted by the heating wire 5 can be evenly and fully transferred to the desiccant, so that the desiccant that is saturated with water can be reused, and water vapor is prevented from entering the interior of the equipment to affect the performance of components, thereby reducing maintenance costs and workload;

[0030] Furthermore, in the above steps, the rotation of the worm 8 will also drive the rotation of the second magnet 17. When the second magnet 17 rotates to the top of the disk 11, the magnetism of the second magnet 17 and the side of the magnet 13 facing each other is opposite, so that the magnet 13 is repelled and moves downward, thereby driving the rotating shaft 6 and the stirring blade 7 to move downward. Conversely, when the second magnet 17 is staggered from the first magnet 13 as the worm 8 rotates, the first magnet 13 and the rotating shaft 6 are moved up and reset under the elastic action of the spring 14. As the worm 8 continues to rotate, the rotating shaft 6 and the stirring blade 7 can move back and forth up and down, so that the desiccant can also be stirred in the vertical direction of the drying box 4, thereby ensuring the comprehensiveness and timeliness of the drying of the desiccant and effectively preventing the intrusion of water vapor.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An environmentally friendly gas-insulated ring main unit, comprising a ring main unit (1), characterized in that: The two side walls of the ring network cabinet (1) are provided with a plurality of heat dissipation openings (2), the two inner sides of the ring network cabinet (1) are fixedly connected with mounting frames (3), the two mounting frames (3) respectively correspond to the heat dissipation openings (2) on the two sides of the ring network cabinet (1), the inner sides of the mounting frames (3) are fixedly connected with a drying box (4) in which granular desiccant is stored, the drying box (4) is provided with a plurality of electric heating wires (5) for drying the desiccant after saturation with water, and the ring network cabinet (1) is provided with a stirring assembly 1 and a stirring assembly 2 for stirring the desiccant.

2. The environmentally friendly gas insulated ring main unit according to claim 1, characterized in that: The stirring assembly 1 comprises a plurality of hollow rotating shafts (6) arranged in a drying box (4), the heating wire (5) being located inside the rotating shaft (6), a plurality of stirring blades (7) being fixedly connected to the side wall of the rotating shaft (6), a motor (12) being fixedly connected to the side wall of the mounting frame (3), a worm (8) being rotatably connected to the inner side of the mounting frame (3), the output shaft end of the motor (12) being axially connected to one end of the worm (8), a disc (11) being arranged above the rotating shaft (6), the disc (11) penetrating the inner top surface of the drying box (4), and the disc (11) being rotatably connected to the drying box (4), a connecting shaft (9) being fixedly connected to the disc (11), a worm gear (10) being fixedly sleeved on the connecting shaft (9), and all the worm gears (10) being meshed with the worm gear (8).

3. The environmentally friendly gas-insulated ring main unit according to claim 2, characterized in that: The stirring component 2 comprises two fixed plates (16) fixedly connected to the side walls of the rotating shaft (6), and a magnetic block 1 (13) is fixedly connected to the fixed plates (16). Two slide grooves (15) are provided on the lower surface of the disc (11), and one end of the magnetic block 1 (13) away from the fixed plates (16) is located inside the slide groove (15), and the magnetic block 1 (13) is slidably connected to the fixed plates (16). A spring (14) is provided between the magnetic block 1 (13) and the inner bottom surface of the slide groove (15). Two magnetic blocks 2 (17) corresponding to the positions of the two magnetic blocks 1 (13) are provided above the disc (11), and the magnetic block 2 (17) is fixed to the worm (8).

4. The environmentally friendly gas insulated ring main unit according to claim 1, characterized in that: The heating wire (5) has a spiral structure.

5. The environmentally friendly gas insulated ring main unit according to claim 1, characterized in that: A humidity sensor (18) is installed on the inner side of the ring main unit (1).

6. The environmentally friendly gas insulated ring main unit according to claim 2, characterized in that: The longitudinal section of the stirring blade (7) is in a cross-shaped structure, and the stirring blade (7) is made of elastic rubber.

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