Environment-friendly insulating inflatable cabinet

Abstract

The utility model discloses an environment-friendly insulating gas-insulated switchgear, which comprises an insulating gas-insulated switchgear body, a gas-insulated switchgear body is arranged on the insulating gas-insulated switchgear body, a cable support and an instrument chamber are arranged at the top of the gas-insulated switchgear body, a mechanism chamber, a cable chamber, a pressure relief chamber and an arc extinguish chamber are arranged in the gas-insulated switchgear body, and a wire outlet mechanism and a fuse wire cylinder are arranged in the mechanism chamber. A cable pillar, a cable grounding connecting piece and a cable fixing piece are arranged in the cable chamber, a circuit breaker switch, an isolating switch and a gas box are arranged in the arc extinguish chamber, the circuit breaker switch and the isolating switch are connected in a matched mode through a high-voltage-resistant pipe, and the lower portion of the high-voltage-resistant pipe is connected with the isolating switch in a matched mode. The gas-insulated switchgear has the advantages of flexible assembly mode, good insulation performance and high safety, arc extinguishing insulation is carried out through gas inflation, and the insulation effect of the gas-insulated switchgear is greatly improved.

Description

Technical Field

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

[0002] Indoor AC high-voltage gas-insulated metal-enclosed switchgear, referred to as "gas-filled cabinet", is a new generation of switchgear. The main switch can use either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The entire cabinet adopts a combination of air insulation and sulfur hexafluoride gas compartments. It is compact and expandable and suitable for distribution automation. The gas-filled cabinet has the characteristics of compact structure, flexible operation, and reliable interlocking. It can provide satisfactory technical solutions for various application occasions, especially places with harsh environments and different user requirements. The use of sensing technology and the latest protection relays, coupled with advanced technical performance and lightweight and flexible assembly solutions, can fully meet the different needs of users. The gas-filled cabinet is suitable for small secondary substations, switchgear, box-type substations, residential areas, industrial and mining enterprises, and large shopping malls in the power system, especially for airports, subways, railways and other occasions with high electricity requirements.

[0003] However, many current inflatable cabinets use insulating materials and insulating coatings for insulation protection. However, high-voltage equipment is prone to arcing due to high voltage and current, resulting in less than ideal insulation effect. Therefore, an improved technology is urgently needed to solve this problem in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide an insulated gas-filled cabinet body on which a gas-filled cabinet body is provided, a cable bracket and an instrument room are provided on the top of the gas-filled cabinet body, a mechanism room, a cable room, a pressure relief room and an arc-extinguishing room are provided inside the gas-filled cabinet body, a line-out mechanism and a fuse tube are provided inside the mechanism room, a cable support, a cable grounding connector and a cable fixing are provided inside the cable room, a circuit breaker switch, an isolating switch and a gas box are provided inside the arc-extinguishing chamber, the circuit breaker switch and the isolating switch are connected by a high-pressure resistant pipe, and the lower part of the high-pressure resistant pipe is connected with the isolating switch. The insulated gas-filled cabinet is fully functional, has a flexible assembly method, has good insulation performance, is highly safe, and performs arc extinguishing insulation through inflation, so that the insulation effect of the gas-filled cabinet is greatly improved, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly insulating gas-filled cabinet, comprising an insulating gas-filled cabinet body, wherein a gas-filled cabinet body is arranged on the insulating gas-filled cabinet body, wherein a mechanism room, a cable room, a pressure relief room, and an arc-extinguishing room are arranged inside the gas-filled cabinet body, wherein a lead-out mechanism and a fuse tube are arranged inside the mechanism room, and the lead-out mechanism and the fuse tube are fixedly mounted on the inner wall of the gas-filled cabinet body.

[0006] The cable chamber is provided with a cable inside, the cable is provided with a cable fixing piece outside, the bottom end of the cable is provided with a cable grounding connector, and the cable grounding connector is fixedly installed with the bottom of the inflatable cabinet body;

[0007] A gas box is arranged inside the arc extinguishing chamber, a circuit breaker switch is arranged inside the arc extinguishing chamber near the top, and an isolating switch is arranged below the circuit breaker switch.

[0008] Preferably, a cable support and an instrument room are provided on the top of the inflatable cabinet body, and the cable support is installed in cooperation with the circuit breaker switch inside the inflatable cabinet body.

[0009] Preferably, a high-pressure resistant tube is provided between the circuit breaker switch and the isolating switch below for installation, an extrusion spring is provided between the top of the high-pressure resistant tube and the circuit breaker switch, an isolating switch mounting bracket is provided on the isolating switch, the isolating switches are arranged at equal intervals on the isolating switch mounting bracket, and the isolating switch is installed in cooperation with the conductive metal sheet at the bottom of the high-pressure resistant tube.

[0010] Preferably, a cable support is provided inside the cable chamber, the cable support is cooperatively connected with the cable below, a cable branch fixing bracket is provided at the top of the cable support, and the cable support and the cable branch fixing bracket are cooperatively connected by a cable.

[0011] Preferably, the outlet mechanism is provided with a wiring bracket, the wiring bracket is provided with a cable locking screw, and a grounding wire is provided between the outlet mechanism and the side wall of the inflatable cabinet body.

[0012] Preferably, a control instrument is provided on the front side of the instrument room, and the instrument room is cooperatively connected with components inside the inflatable cabinet.

[0013] Preferably, the inner walls of the mechanism chamber, cable chamber, pressure relief chamber and arc extinguishing chamber are all provided with an insulating layer, a pressure relief valve is provided on the top of the pressure relief chamber, and the arc extinguishing chamber is a vacuum chamber.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The outside of the cable is equipped with a cable fixing piece, which can uniformly position all cables by fixing the workpiece, making the cable as a whole more neat and convenient for later maintenance;

[0016] (2) A cable grounding connector is provided at the bottom end of the cable, and the cable grounding connector is fixedly installed at the bottom of the inflatable cabinet body. Although some cables are connected to the cable grounding connector, the cable grounding ensures the safety of the cable power supply and avoids electric shock caused by leakage;

[0017] (2) A gas box is provided inside the arc extinguishing chamber, and the inside of the gas box is sealed after being filled with inert gas, so that the arc extinguishing chamber is in a sealed and arc-extinguishing insulated state, ensuring that the components inside the arc extinguishing chamber can maintain normal operation for a long time;

[0018] (3) The insulating gas-filled cabinet is fully functional, has a flexible assembly method, has excellent insulation performance, and is highly safe. Arc extinguishing insulation is achieved through inflation, which greatly improves the insulation effect of the gas-filled cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a left view of the internal structure of the insulation and inflatable cabinet body of the utility model;

[0020] Figure 2 This is a right view of the internal structure of the insulation and inflatable cabinet of the utility model;

[0021] Figure 3 This is a schematic diagram of the cabinet structure of the utility model insulation inflatable cabinet;

[0022] Figure 4 This is a schematic diagram of the structure of the high-pressure resistant pipe of the utility model.

[0023] In the figure: 1. Instrument room; 2. Mechanism room; 3. Cable room; 4. Pressure relief room; 5. Arc extinguishing room; 6. Outgoing line mechanism; 7. Fuse tube; 8. Cable support; 9. Earthing switch; 10. Load switch; 11. Circuit breaker switch; 12. Disconnector; 13. Gas box; 14. Inflatable cabinet body; 15. Insulating inflatable cabinet body; 16. Cable grounding connector; 17. Cable fixings; 18. Cable branch fixing bracket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: an environmentally friendly insulating gas-filled cabinet, including an insulating gas-filled cabinet body 15, a gas-filled cabinet body 14 is arranged on the insulating gas-filled cabinet body 15, a cable support 8 and an instrument room 1 are arranged on the top of the gas-filled cabinet body 14, the cable support 8 is installed in cooperation with the circuit breaker switch 11 inside the gas-filled cabinet body 14, and a mechanism room 2, a cable room 3, a pressure relief room 4, and an arc extinguishing room 5 are arranged inside the gas-filled cabinet body 14.

[0026] The interior of the mechanism chamber 2 is provided with a line-out mechanism 6 and a fuse tube 7, which are fixedly mounted to the inner wall of the gas cabinet body 14. The entire box of the gas cabinet body 14 is grounded to ensure the safety of the insulated gas cabinet body 15 after power is supplied.

[0027] Cables are arranged inside the cable chamber 3, and cable fixing parts 17 are arranged on the outside of the cables. All cables are uniformly positioned by fixing the workpiece, so that the cables as a whole become more neat and convenient for later maintenance. A cable grounding connector 16 is provided at the bottom end of the cable. The cable grounding connector 16 is fixedly installed on the bottom of the inflatable cabinet body 14. Although some cables are connected to the cable grounding connector 16, the power-on safety of the cables is guaranteed after the cables are grounded, avoiding electric shock caused by leakage.

[0028] A gas box 13 is provided inside the arc extinguishing chamber 5. The interior of the gas box 13 is sealed after being filled with inert gas, so that the arc extinguishing chamber 5 is in a sealed, arc-extinguishing and insulated state, ensuring that the components inside the arc extinguishing chamber 5 can ensure normal operation for a long time, and effectively ensuring that the gas cabinet will not have arc extinguishing chamber 5 under long-term operation. A circuit breaker switch 11 is provided near the top on the inside of the chamber 5, and an isolating switch 12 is provided below the circuit breaker switch 11. A high-pressure resistant pipe is provided between the circuit breaker switch 11 and the isolating switch 12 below for installation. An extrusion spring is provided between the top of the high-pressure resistant pipe and the circuit breaker switch 11. An isolating switch mounting bracket is provided on the isolating switch 12. The isolating switches 12 are arranged at equal intervals on the isolating switch mounting bracket, and the isolating switch 12 is installed in cooperation with the conductive metal sheet at the bottom of the high-pressure resistant pipe.

[0029] A cable support 8 is provided inside the cable chamber 3, and the cable support 8 is connected with the cable below. A cable branch fixing bracket 18 is provided at the top of the cable support 8, and the cable support 8 and the cable branch fixing bracket 18 are connected with the cable.

[0030] A wiring bracket is provided on the outlet mechanism 6 , a cable locking screw is provided on the wiring bracket, and a grounding wire is provided between the outlet mechanism 6 and the side wall of the inflatable cabinet body 14 .

[0031] A control instrument is provided on the front of the instrument room 1, and the instrument room 1 is connected with the components inside the inflatable cabinet body 14. The instruments on the instrument room 1 monitor and display the status inside each chamber in real time.

[0032] The inner walls of the mechanism room 2, cable room 3, pressure relief chamber 4 and arc extinguishing chamber 5 are all provided with an insulating layer. The insulating coating further improves the insulation effect of the cabinet. A pressure relief valve is provided on the top of the pressure relief chamber 4, and the arc extinguishing chamber 5 is a chamber filled with inert gas.

[0033] The insulating gas-filled cabinet is fully functional, has a flexible assembly method, has excellent insulation performance, is highly safe, and performs arc extinguishing insulation through inflation, which greatly improves the insulation effect of the gas-filled cabinet.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly insulated gas-filled cabinet, comprising an insulated gas-filled cabinet body (15), Features: The insulating gas-filled cabinet body (15) is provided with a gas-filled cabinet body (14), and the inside of the gas-filled cabinet body (14) is provided with a mechanism room (2), a cable room (3), a pressure relief room (4), and an arc extinguishing room (5); The mechanism chamber (2) is provided with a wire outlet mechanism (6) and a fuse barrel (7), and the wire outlet mechanism (6) and the fuse barrel (7) are fixedly mounted on the inner wall of the inflatable cabinet body (14); The cable chamber (3) is provided with a cable inside, the cable outside is provided with a cable fixing member (17), the bottom end of the cable is provided with a cable grounding connector (16), and the cable grounding connector (16) is fixedly installed with the bottom of the inflatable cabinet body (14); A gas box (13) is provided inside the arc extinguishing chamber (5), a circuit breaker switch (11) is provided near the top of the inner side of the arc extinguishing chamber (5), and an isolating switch (12) is provided below the circuit breaker switch (11).

2. An environmentally friendly insulated gas-filled cabinet according to claim 1, Features: A cable support (8) and an instrument room (1) are provided on the top of the gas cabinet body (14); the cable support (8) is installed in coordination with a circuit breaker switch (11) inside the gas cabinet body (14).

3. An environmentally friendly insulated gas-filled cabinet according to claim 1, Features: A high-pressure resistant tube is provided between the circuit breaker switch (11) and the isolating switch (12) below for installation, a compression spring is provided between the top of the high-pressure resistant tube and the circuit breaker switch (11), an isolating switch mounting bracket is provided on the isolating switch (12), the isolating switches (12) are arranged at equal intervals on the isolating switch mounting bracket, and the isolating switch (12) is installed in cooperation with a conductive metal sheet at the bottom of the high-pressure resistant tube.

4. The environmentally friendly insulated gas-filled cabinet according to claim 1, Features: A cable support (8) is provided inside the cable chamber (3), and the cable support (8) is connected to the cable below. A cable branching fixed support seat (18) is provided at the top of the cable support (8), and the cable support (8) and the cable branching fixed support seat (18) are connected to each other by cables.

5. The environmentally friendly insulated gas-filled cabinet according to claim 1, Features: The outlet mechanism (6) is provided with a wiring bracket, the wiring bracket is provided with a cable locking screw, and a grounding wire is provided between the outlet mechanism (6) and the side wall of the inflatable cabinet body (14).

6. The environmentally friendly insulated gas-filled cabinet according to claim 2, Features: The front of the instrument room (1) is provided with a control instrument, and the instrument room (1) is cooperatively connected with components inside the inflatable cabinet body (14).

7. The environmentally friendly insulated gas-filled cabinet according to claim 1, Features: The inner walls of the mechanism chamber (2), the cable chamber (3), the pressure relief chamber (4) and the arc extinguishing chamber (5) are all provided with insulating layers, the top of the pressure relief chamber (4) is provided with a pressure relief valve, and the arc extinguishing chamber (5) is a vacuum chamber.

Images