Environment-friendly gas insulated ring main unit outlet bushing

Abstract

The utility model discloses an environmental protection gas insulation ring net cabinet outlet bushing, including outlet bushing pipe body still include ring net cabinet body, the surface fixed mounting of outlet bushing pipe body has the mounting panel, the front end fixed mounting of mounting panel has the safety cabin body, the front end of safety cabin body is provided with safety hatch, and the left and right ends of safety hatch all are set up arc recess, and the left side fixed mounting of safety hatch front end has the locking jack, and the inside of safety cabin body is located the lateral side of arc recess and is set up movable cavity, the utility model discloses through elastic structure extrusion snap -fit ball closely adhere to arc recess, guarantee the stability and close of safety hatch closure, and this structure is convenient to switch simultaneously, and utilize the bolt locking structure and add two -level safety guarantee function for safety cabin body, cooperate information processing module control and unlock, ensure that the other safety protection measure on equipment opens, and three position switch linkage, only when cable room ground only allows to open bushing hatch, prevent the misoperation and cause the safety accident.

Description

Technical Field

[0001] This utility model relates to the field of ring main units, and in particular to the outgoing bushing of environmentally friendly gas-insulated ring main units. Background Technology

[0002] Environmentally friendly gas-insulated ring main units are switchgear specifically designed for medium-voltage power distribution systems. They use environmentally friendly gases (such as dry air or nitrogen) as the insulating medium, replacing the traditional high-greenhouse-effect gas sulfur hexafluoride, to achieve lower carbon emissions and environmental friendliness. The key advantage of this equipment is that it can maintain normal operation even at zero gauge pressure and has no toxic gas emissions, ensuring reliability and safety in harsh environments. Based on the principle of ring distribution network (ring network), dual redundant power supply is achieved through cable connection to improve reliability. Switching operation relies on vacuum circuit breakers for arc extinguishing and can be remotely controlled by electric motors.

[0003] For example, patent number (CN219321813U) discloses an environmentally friendly gas-insulated ring main unit outlet bushing, including a bushing body and a high-voltage conductor disposed within the bushing body. The length direction of the high-voltage conductor is the same as the length direction of the bushing body. The upper and lower ends of the high-voltage conductor protrude from the bushing body for connecting a load switch and an external cable. A cylindrical metal shield is disposed inside the bushing body, and the high-voltage conductor passes through the metal shield. This utility model's environmentally friendly gas-insulated ring main unit outlet bushing has an ingenious structural design, effectively shielding the gas box opening area from interference with the high-voltage conductor inside the bushing.

[0004] Currently, the safety protection function of the outgoing bushings of environmentally friendly gas-insulated ring main units has certain limitations during use. There is a possibility that if the cable compartment is not grounded during operation, further misoperation may lead to a safety accident, posing a certain safety hazard.

[0005] Therefore, to address the above issues, an environmentally friendly gas-insulated ring main unit outgoing bushing with a bushing safety door can be designed. Utility Model Content

[0006] To overcome the problem that during the use of environmentally friendly gas-insulated ring main unit outgoing bushings, there may be safety accidents caused by operators mishandling the cable compartment when it is not grounded.

[0007] The technical solution of this utility model is as follows: an environmentally friendly gas-insulated ring main unit outlet bushing, including an outlet bushing body and a ring main unit body. An installation plate is fixedly installed on the surface of the outlet bushing body. A safety chamber is fixedly installed at the front end of the installation plate. A safety door is provided at the front end of the safety chamber. Arc-shaped grooves are opened at both ends of the safety door. A locking hole is fixedly installed on the left side of the front end of the safety door. A movable cavity is opened on the side of the arc-shaped groove on the inner side of the safety chamber. A return spring is fixedly installed inside the movable cavity. A locking ball is fixedly installed on the return spring. An installation box is fixedly installed on the left side of the front end of the safety chamber. An electric telescopic rod is fixedly installed inside the installation box. An information processing module is fixedly installed on the front left end of the safety chamber. A temperature sensing module is fixedly installed on the surface of the outlet bushing body inside the safety chamber. A warning light is fixedly installed on the rear side of the upper end of the information processing module. A warning buzzer is fixedly installed on the front side of the upper end of the information processing module.

[0008] Preferably, the safety chamber and safety door can provide safety protection for the outgoing bushing. The electric telescopic rod can work with the locking socket to form a two-level safety guarantee structure. The information processing module can control the switch using the safety lock structure and is linked with the equipment's three-position switch. Only when the cable compartment is grounded will the electric telescopic rod be unlocked from the locking socket. The unit indicator light will indicate the locked status. The temperature sensing module can monitor the temperature of the outgoing bushing in real time and synchronize the data to the information processing module for display. Warning lights and warning buzzers will warn of overheating hazards and assist maintenance personnel in safe operation.

[0009] Preferably, the safety compartment is rotatably connected to the safety door, the front end of the safety door is fixedly equipped with a handle, and the mounting plate is fixedly connected to the ring network cabinet.

[0010] Preferably, the surface of the locking ball is slidably connected to the movable cavity, and the end of the locking ball away from the return spring extends to the outside of the movable cavity and is adapted to the arc-shaped groove.

[0011] Preferably, the output end of the electric telescopic rod extends to the outside of the mounting box and connects to the locking pin in the locking hole, and the output end of the electric telescopic rod is slidably connected to the mounting box.

[0012] Preferably, a unit indicator light is fixedly installed at the front end of the mounting box, and both the unit indicator light and the electric telescopic rod are electrically connected to the information processing module.

[0013] Preferably, the temperature sensing module is electrically connected to the information processing module, and a display screen is provided on the left side of the information processing module.

[0014] Preferably, the warning light is electrically connected to the information processing module, and the warning buzzer is electrically connected to the information processing module.

[0015] The beneficial effects of this utility model are:

[0016] 1. The outgoing bushing of this environmentally friendly gas-insulated ring main unit uses an elastic structure to squeeze and engage the ball tightly against the arc-shaped groove, ensuring the stability and tightness of the safety compartment door closure. At the same time, this structure facilitates opening and closing, and the use of a pin locking structure adds a secondary safety guarantee function to the safety compartment. In conjunction with the information processing module to control unlocking, it ensures that other safety protection measures on the equipment are activated. It is linked with the three-position switch, and the bushing door is only allowed to be opened when the cable compartment is grounded, preventing safety accidents caused by misoperation.

[0017] 2. The outgoing bushing of this environmentally friendly gas-insulated ring main unit monitors the working temperature of the bushing body in real time through a temperature sensing module. The data is also transmitted to the information processing module along with other safety detection structures in the equipment. The information processing module then makes judgments and controls the system. The integrated cable head temperature measurement module provides early warning of overheating hazards, assists maintenance personnel in safe operation, further improves the safety of the outgoing bushing of the environmentally friendly gas-insulated ring main unit, and ensures that the equipment operates in a safe environment and under safe conditions. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the overall structure of the outgoing bushing of the environmentally friendly gas-insulated ring main unit of this utility model.

[0019] Figure 2 The diagram shown is a schematic representation of the safety cabin structure of the outgoing bushing of the environmentally friendly gas-insulated ring main unit of this utility model.

[0020] Figure 3 The diagram shown is a schematic representation of the locking socket structure of the outgoing bushing of the environmentally friendly gas-insulated ring main unit of this utility model.

[0021] Figure 4 The diagram shown is a schematic representation of the safety hatch structure of the outgoing bushing of the environmentally friendly gas-insulated ring main unit of this utility model.

[0022] Figure 5 This utility model is shown. Figure 4 Enlarged structural diagram of point A in the middle;

[0023] Figure 6 The diagram shown is a structural schematic of the temperature sensing module for the outgoing bushing of the environmentally friendly gas-insulated ring main unit of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Outgoing sleeve body; 2. Mounting plate; 3. Safety compartment; 4. Safety door; 5. Arc-shaped groove; 6. Locking socket; 7. Movable cavity; 8. Return spring; 9. Engaging ball; 10. Mounting box; 11. Electric telescopic rod; 12. Information processing module; 13. Temperature sensing module; 14. Warning light; 15. Warning buzzer; 16. Ring network cabinet; 17. Unit indicator light. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figures 1-6 This utility model provides an embodiment of an environmentally friendly gas-insulated ring main unit outlet bushing, including an outlet bushing body 1 and a ring main unit body 16. An installation plate 2 is fixedly mounted on the surface of the outlet bushing body 1. A safety chamber 3 is fixedly mounted on the front end of the installation plate 2. A safety door 4 is provided at the front end of the safety chamber 3. Arc-shaped grooves 5 are provided at both ends of the safety door 4. A locking hole 6 is fixedly mounted on the left side of the front end of the safety door 4. A movable cavity 7 is provided on the inner side of the safety chamber 3, located on the side of the arc-shaped groove 5. A return spring 8 is fixedly mounted inside the movable cavity 7. A locking ball 9 is fixedly mounted on the return spring 8. An installation box is fixedly mounted on the left side of the front end of the safety chamber 3. 10. An electric telescopic rod 11 is fixedly installed inside the installation box 10. An information processing module 12 is fixedly installed on the front left side of the safety chamber 3. A temperature sensing module 13 is fixedly installed on the surface of the outgoing sleeve 1 inside the safety chamber 3. A warning light 14 is fixedly installed on the rear side of the upper end of the information processing module 12. A warning buzzer 15 is fixedly installed on the front side of the upper end of the information processing module 12. The pin locking structure adds a secondary safety guarantee function to the safety chamber 3. It works in conjunction with the information processing module 12 to control unlocking and ensure that other safety protection measures on the equipment are activated. It is linked with the three-position switch. The sleeve door is only allowed to be opened when the cable chamber is grounded to prevent accidental operation.

[0027] Please see Figures 1-5In this embodiment, the safety chamber 3 is rotatably connected to the safety door 4. A handle is fixedly installed at the front end of the safety door 4. The mounting plate 2 is fixedly connected to the ring main unit 16. The surface of the locking ball 9 is slidably connected to the movable cavity 7. The end of the locking ball 9 away from the return spring 8 extends to the outside of the movable cavity 7 and matches the arc-shaped groove 5. The output end of the electric telescopic rod 11 extends to the outside of the mounting box 10 and is connected to the locking socket 6 pin. The output end of the electric telescopic rod 11 is slidably connected to the mounting box 10. A unit indicator light 17 is fixedly installed at the front end of the mounting box 10. Both the unit indicator light 17 and the electric telescopic rod 11 are electrically connected to the information processing module 12. Safety protection facilities will be installed on the environmentally friendly gas-insulated ring main unit. The information processing module 12 is used to communicate with each safety protection facility. The electrical wiring connection (an information transmission module can be installed in the structure) receives the transmission of detection and operation data. A sleeve door can be installed at the connection point of the outgoing sleeve body 1. The safety chamber 3 and the safety door 4 can protect it. The electric telescopic rod 11 can work with the locking socket 6 to form a secondary safety guarantee structure (the electric telescopic rod 11 can be set as a drive component with similar functions). The information processing module 12 can control the electric telescopic rod 11 to switch on and off, and link it with the three-position switch of the equipment. Only when the cable chamber is grounded will the electric telescopic rod 11 be unlocked from the locking socket 6. During this control process, the information processing module 12 can synchronously indicate the status of the locking structure with the unit indicator light 17, further ensuring that the sleeve door can only be opened after other safety protection measures are activated.

[0028] Please see Figure 1 , Figure 2 and Figure 6 In this embodiment, the temperature sensing module 13 is electrically connected to the information processing module 12. A display screen is provided on the left end of the information processing module 12. The warning light 14 is electrically connected to the information processing module 12, and the warning buzzer 15 is electrically connected to the information processing module 12. When using the outlet sleeve 1, the temperature sensing module 13 can monitor the temperature of the outlet sleeve 1 in real time (the temperature sensing module 13 mainly converts temperature changes into electrical signals through a temperature sensing element, and consists of components such as a temperature sensing element, a probe, a shell, and a signal processing circuit, directly contacting the measured medium and measuring temperature through heat conduction). The network point data information can be synchronized to the information processing module 12 and displayed on the display screen. When the temperature approaches a high value, the information processing module 12 can control the warning light 14 and the warning buzzer 15 to warn of overheating hazards and assist maintenance personnel in safe operation.

[0029] During operation, the ring main unit outgoing bushing is installed in conjunction with the safety cabin 3. A bushing door is installed at the connection point of the outgoing bushing body 1. The safety cabin 3 and safety door 4 protect it. At the same time, the electric telescopic rod 11 and the locking socket 6 form a secondary safety guarantee structure. The information processing module 12 controls its opening and closing, and it is linked with the three-position switch of the equipment. Only when the cable chamber is grounded will the electric telescopic rod 11 be unlocked from the locking socket 6. The unit indicator light 17 will provide a prompt, further ensuring that the bushing door can only be opened after other safety protection measures are activated. At the same time, when using the outgoing bushing body 1, the temperature sensing module 13 monitors the temperature of the outgoing bushing body 1 in real time and synchronizes the data information to the information processing module 12 for display. When the temperature approaches a high value, the warning light 14 and the warning buzzer 15 will provide a warning of overheating potential, assisting maintenance personnel in safe operation.

[0030] Through the above steps, a secondary safety guarantee function is added to the safety compartment 3 by using a latch locking structure. In conjunction with the information processing module 12 to control unlocking, it ensures that other safety protection measures on the equipment are activated. It is linked with the three-position switch, and the bushing door is only allowed to be opened when the cable compartment is grounded, to prevent safety accidents caused by misoperation. This solves the problem that during the use of the outgoing bushing of the environmentally friendly gas-insulated ring main unit, there may be a situation where the cable compartment is not grounded when the operator operates it, which may lead to further misoperation and safety accidents.

[0031] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An environmentally friendly gas-insulated ring main unit outgoing bushing, installed in the ring main unit body (16), including an outgoing bushing body (1), characterized in that: A mounting plate (2) is fixedly installed on the surface of the outlet sleeve (1). A safety chamber (3) is fixedly installed at the front end of the mounting plate (2). A safety door (4) is provided at the front end of the safety chamber (3). Arc-shaped grooves (5) are provided at both the left and right ends of the safety door (4). A locking hole (6) is fixedly installed on the left side of the front end of the safety door (4). A movable cavity (7) is provided on the inner side of the safety chamber (3) at the side of the arc-shaped groove (5). A return spring (8) is fixedly installed inside the movable cavity (7). The return spring (8) is a fixed upper mounting plate. The safety cabin (3) is equipped with a locking ball (9), and an installation box (10) is fixedly installed on the left side of the front end of the safety cabin (3). An electric telescopic rod (11) is fixedly installed inside the installation box (10). An information processing module (12) is fixedly installed on the front side of the left end of the safety cabin (3). A temperature sensing module (13) is fixedly installed on the surface of the outlet sleeve (1) inside the safety cabin (3). A warning light (14) is fixedly installed on the rear side of the upper end of the information processing module (12). A warning buzzer (15) is fixedly installed on the front side of the upper end of the information processing module (12).

2. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 1, characterized in that: The safety chamber (3) is rotatably connected to the safety door (4), and a handle is fixedly installed at the front end of the safety door (4). The mounting plate (2) is fixedly connected to the ring network cabinet (16).

3. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 1, characterized in that: The surface of the locking ball (9) is slidably connected to the movable cavity (7), and the end of the locking ball (9) away from the return spring (8) extends to the outside of the movable cavity (7) and is adapted to the arc-shaped groove (5).

4. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 1, characterized in that: The output end of the electric telescopic rod (11) extends to the outside of the mounting box (10) and is connected to the locking hole (6) pin. The output end of the electric telescopic rod (11) is slidably connected to the mounting box (10).

5. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 4, characterized in that: The front end of the mounting box (10) is fixedly equipped with a unit indicator light (17), and both the unit indicator light (17) and the electric telescopic rod (11) are electrically connected to the information processing module (12).

6. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 1, characterized in that: The temperature sensing module (13) is electrically connected to the information processing module (12), and a display screen is provided on the left end of the information processing module (12).

7. The outgoing bushing of the environmentally friendly gas-insulated ring main unit according to claim 6, characterized in that: The warning light (14) is electrically connected to the information processing module (12), and the warning buzzer (15) is electrically connected to the information processing module (12).

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