CN213906098U

CN213906098U - Metal closed sulfur hexafluoride ring main unit

Info

Publication number: CN213906098U
Application number: CN202120589686.8U
Authority: CN
Inventors: 赵丙胜
Original assignee: Jingrui Hengcheng Electric Beijing Co ltd
Current assignee: Jingrui Hengcheng Electric Beijing Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-08-06
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses a metal-enclosed sulfur hexafluoride ring main unit, which comprises a base, a protection box is fixedly arranged on the base, a ring main unit is fixedly arranged in the protection box, an isolation plate is fixedly arranged at the upper part in the ring main unit, a load switch is fixedly arranged at the upper end of the isolation plate, a sulfur hexafluoride detector is fixedly arranged at one side of the inner wall at the upper end of the ring main unit, a drying box is fixedly arranged at the upper end of the isolation plate and positioned at one side of the load switch, a sulfur hexafluoride recovery device is fixedly arranged at one side of the inner part at the lower end of the ring main unit, the sulfur hexafluoride detector is arranged in the sulfur hexafluoride ring main unit to monitor the leakage of sulfur hexafluoride gas in the load switch in real time, meanwhile, the leaked sulfur hexafluoride gas is collected in time by the sulfur hexafluoride recovery device to avoid the gas from leaking to the outside, and in order to improve the safety of the ring main unit, the moisture detector is arranged to detect the moisture and the moisture in the main unit in real time, to ensure the safety in the cabinet body.

Description

Metal closed sulfur hexafluoride ring main unit

Technical Field

The utility model relates to a looped netowrk cabinet field specifically is metal enclosed sulfur hexafluoride looped netowrk cabinet.

Background

The SF6 ring main unit is an air-insulated or gas-insulated medium-voltage electrical apparatus combination device which can be randomly combined into a multi-loop access switch, has the functions of communication and protection of an electric power system and takes a load switch as a core component. The core part of a main loop of the sulfur hexafluoride loop cabinet consists of an SF6 load switch or an additional breaker and other primary auxiliary electrical appliances, the monitoring of SF6 gas is not only for the leakage monitoring of SF6 gas, but also for the moisture detection of SF6 gas, because the surface flashover voltage can be greatly reduced when the surface of a fixed insulating part is condensed, and the moisture in the SF6 gas can also participate in the decomposition reaction of the SF6 gas under the action of an electric arc to generate decomposed substances such as highly corrosive hydrogen fluoride and the like, the sulfur hexafluoride loop cabinet has the corrosion action on an SF6 gas breaker and other parts, the insulation resistance of the insulating part can be reduced, and flashover breakdown occurs in severe cases, so that the sulfur hexafluoride loop cabinet which can carry out moisture monitoring and can detect and collect the SF6 gas is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a metal-enclosed sulfur hexafluoride looped netowrk cabinet to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: metal-enclosed sulfur hexafluoride ring main unit, which comprises a base, fixed mounting has the guard box on the base, the inside fixed mounting of guard box has the ring main unit body, the internal top fixed mounting of ring main unit has isolated board, isolated board upper end fixed mounting has load switch, ring main unit body upper end inner wall one side fixed mounting has the sulfur hexafluoride detector, isolated board upper end just is located load switch one side fixed mounting and has dry box, the inside one side fixed mounting of ring main unit body lower extreme has sulfur hexafluoride recovery unit, the internal sulfur hexafluoride recovery unit one side fixed mounting that just is located of ring main unit has dry box, the internal opposite side fixed mounting of ring main unit has No. two moisture detector, ring main unit body outer wall one side fixed mounting has the fan.

Preferably, the upper end of the ring main unit is fixedly provided with a second alarm lamp, the second alarm lamp is linearly connected with the sulfur hexafluoride detector, and the second moisture detector is linearly connected with the fan.

Preferably, the upper end of the sulfur hexafluoride recovery device is fixedly provided with a connecting pipe, the upper end of the connecting pipe penetrates through the isolation plate, and the sulfur hexafluoride recovery device is linearly connected with the sulfur hexafluoride detector.

Preferably, one side of the ring main unit is fixedly provided with a sealing door plate, and a heat dissipation opening is formed below the sealing door plate.

Preferably, base one side fixed mounting has a moisture detector, protection box top fixed mounting has an alarm lamp, an alarm lamp and a moisture detector line connection.

Preferably, the two sides of the protection box are respectively and rotatably provided with an access door plate, and transparent glass is fixedly arranged on the access door plate on one side of the protection box.

Compared with the prior art, the utility model has the advantages that; the leakage of sulfur hexafluoride gas in a load switch is monitored in real time by installing a sulfur hexafluoride detector in the sulfur hexafluoride ring main unit, meanwhile, the leaked sulfur hexafluoride gas is collected in time by a sulfur hexafluoride recovery device, the gas is prevented from leaking to the outside, and in order to improve the safety of the ring main unit, the moisture and the moisture in the main unit are detected in real time by installing a moisture detector, so that the safety of the main unit is ensured.

Drawings

FIG. 1 is a schematic view of the front structure of the protection box of the present invention;

FIG. 2 is a schematic view of the internal structure of the protection box of the present invention;

fig. 3 is a schematic diagram of the internal structure of the sulfur hexafluoride ring main unit of the present invention;

fig. 4 is a schematic structural diagram of the sulfur hexafluoride ring main unit of the present invention;

in the figure: 1. a base; 2. an access door panel; 3. a protection box; 4. a first alarm light; 5. a moisture detector; 6. a ring main unit; 7. a second alarm light; 8. a second moisture detector; 9. drying the box; 10. A sulfur hexafluoride recovery unit; 11. a connecting pipe; 12. a fan; 13. a sulfur hexafluoride detector; 14. a sealing door panel; 15. a load switch; 16. a heat dissipation port; 17. an insulating panel; 18. and (4) transparent glass.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a metal-enclosed sulfur hexafluoride ring main unit comprises a base 1, a protection box 3 is fixedly mounted on the base 1, a ring main unit 6 is protected through the protection box 3, a ring main unit 6 is fixedly mounted inside the protection box 3, a line is controlled and protected through the ring main unit 6, an isolation plate 17 is fixedly mounted on the upper portion inside the ring main unit 6, an upper layer and a lower layer inside the ring main unit 6 are separated through the isolation plate 17, leaked sulfur hexafluoride gas is prevented from leaking out from a heat dissipation port 16 at the lower end of the ring main unit 6, a load switch 15 is fixedly mounted at the upper end of the isolation plate 17, the circuit is controlled and sealed and stored through the load switch 15, a sulfur hexafluoride detector 13 is fixedly mounted on one side of the inner wall at the upper end of the ring main unit 6, the leaked sulfur hexafluoride gas is detected through the sulfur hexafluoride detector 13, a drying box 9 is fixedly mounted at the, carry out the drying and adsorbing through dry box 9 to the moisture of the internal portion of cabinet, 6 inside one side fixed mounting of lower extreme of looped netowrk cabinet has sulfur hexafluoride recovery unit 10, absorb the sulfur hexafluoride gas that leaks on the cabinet body through sulfur hexafluoride recovery unit 10, just be located 10 one side fixed mounting of sulfur hexafluoride recovery unit in the looped netowrk cabinet 6 and have dry box 9, another side fixed mounting has No. two moisture detector 8 in the looped netowrk cabinet 6, monitor the moisture and the moisture of the internal portion of cabinet through No. two

moisture detector

8, 6 outer wall one side fixed mounting of looped netowrk cabinet has fan 12, blow away through the moisture of the internal portion of 12 cabinets of fan.

In this embodiment, fixed mounting has No. two warning lights 7 in the upper end of the looped netowrk cabinet 6, and No. two warning lights 7 and sulfur hexafluoride detector 13 linear connection, No. two moisture detector 8 and fan 12 linear connection, through No. two warning lights 7 to the inside sulfur hexafluoride gas of leaking of looped netowrk cabinet 6 the suggestion of reporting to the police, detect moisture and humidity inside the looped netowrk cabinet 6 through No. two moisture detector 8.

Meanwhile, the upper end of the sulfur hexafluoride recovery device 10 is fixedly provided with a connecting pipe 11, the upper end of the connecting pipe 11 penetrates through an isolation plate 17, the sulfur hexafluoride recovery device 10 is linearly connected with the sulfur hexafluoride detector 13, and the upper end and the lower end of the looped network cabinet body 6 are separated through the isolation plate 17.

Further, one side of the ring main unit 6 is fixedly provided with a seal door plate 14, a heat dissipation port 16 is formed below the seal door plate 14, the ring main unit 6 is protected in a sealing mode through the seal door plate 14, and the heat dissipation port 16 is used for facilitating air exchange and ventilation of the lower end of the ring main unit 6.

Still further, base 1 one side fixed mounting has moisture detector 5 No. one, and 3 top fixed mounting of guard box has warning light 4 No. one, and warning light 4 and moisture detector 5 line connection detect the moisture of 3 insides of guard box through moisture detector 5 No. one.

Furthermore, 3 both sides of guard box rotate respectively and install access door board 2, and fixed mounting has transparent glass 18 on 3 one side access door board 2 of guard box, is convenient for the security check personnel through setting up access door board 2 and overhauls, is convenient for observe the 3 inside conditions of guard box through transparent glass 18.

When in use, in order to better ensure the safety of the metal closed sulfur hexafluoride ring main unit, the second moisture detector 8 is arranged in the ring main unit 6 to detect the moisture and humidity inside the ring main unit 6 in real time, so as to avoid corrosion of the insulating part caused by excessive moisture and humidity for a long time, then the fan 12 is used for regularly and regularly blowing air to the inside of the ring main unit 6 to reduce the humidity inside the ring main unit, and in order to enable the air to circulate, the heat dissipation port 16 is arranged on the sealing door plate 14 to facilitate ventilation, and the drying box 9 arranged in the main unit can absorb the moisture inside the main unit, so that the drying box 9 needs to be regularly and timely replaced, and meanwhile, in order to ensure that when the load switch 15 is in failure and the leakage of the sulfur hexafluoride gas inside the main unit occurs, the sulfur hexafluoride detector 13 arranged at the upper end inside the main unit can timely detect the gas at the upper end of the main unit, then the alarm lamp 7 is used for timely alarming and reminding, and simultaneously, in order to prevent sulfur hexafluoride gas leaking from the leaking position in the load switch 15 from leaking to the outside of the cabinet body, the sulfur hexafluoride gas recovery device 10 arranged at the bottom in the cabinet body absorbs the sulfur hexafluoride gas leaking from the upper end of the cabinet body through the connecting pipe 11, and because the isolation plate 17 is arranged between the upper end and the lower end of the cabinet body, the sulfur hexafluoride gas can be prevented from directly leaking to the lower end of the cabinet body and further leaking to the outside through the heat dissipation port 16, and the sealing door plate 14 at the upper end can also isolate the sulfur hexafluoride gas from leaking to the outside, and in order to better protect the looped network cabinet body 6, the protection box 3 arranged outside the cabinet body is used for carrying out safe fire-proof and rain-proof protection on the looped network cabinet body 6, and simultaneously, in order to prevent water from entering from the inside of the protection box 3 in rainy season, the water level inside the protection box 3 is detected through the moisture detector 5, and then the first alarm lamp 4 carries out alarm reminding.

To sum up, the metal-enclosed sulfur hexafluoride ring main unit of the structure not only can protect the ring main unit body through the protection box, but also can reduce the fault problem of the ring main unit by adding the installed sulfur hexafluoride recovery device and the moisture detector.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The metal-enclosed sulfur hexafluoride ring main unit is characterized by comprising a base (1), a protection box (3) is fixedly mounted on the base (1), a ring main unit (6) is fixedly mounted inside the protection box (3), an isolation plate (17) is fixedly mounted on the inner upper portion of the ring main unit (6), a load switch (15) is fixedly mounted at the upper end of the isolation plate (17), a sulfur hexafluoride detector (13) is fixedly mounted on one side of the inner wall of the upper end of the ring main unit (6), a drying box (9) is fixedly mounted at the upper end of the isolation plate (17) and positioned on one side of the load switch (15), a sulfur hexafluoride recovery device (10) is fixedly mounted at one side of the inner portion of the lower end of the ring main unit (6), a drying box (9) is fixedly mounted at one side of the sulfur hexafluoride recovery device (10) in the ring main unit (6), and a second moisture detector (8) is fixedly mounted at the other side in the ring main unit (6), and a fan (12) is fixedly installed on one side of the outer wall of the ring main body (6).

2. The metal-enclosed sulfur hexafluoride ring main unit as claimed in claim 1, wherein a second alarm lamp (7) is fixedly installed at the upper end of the ring main unit body (6), the second alarm lamp (7) is linearly connected with a sulfur hexafluoride detector (13), and the second moisture detector (8) is linearly connected with a fan (12).

3. The metal-enclosed sulfur hexafluoride ring main unit as claimed in claim 1, wherein a connecting pipe (11) is fixedly installed at an upper end of the sulfur hexafluoride recovery device (10), an insulating plate (17) penetrates through an upper end of the connecting pipe (11), and the sulfur hexafluoride recovery device (10) is linearly connected with the sulfur hexafluoride detector (13).

4. The metal-enclosed sulfur hexafluoride ring main unit as claimed in claim 1, wherein a sealing door panel (14) is fixedly installed at one side of the ring main unit (6), and a heat dissipation port (16) is formed below the sealing door panel (14).

5. The metal-enclosed sulfur hexafluoride ring main unit as claimed in claim 1, wherein a first moisture detector (5) is fixedly installed on one side of the base (1), a first alarm lamp (4) is fixedly installed on the top of the protection box (3), and the first alarm lamp (4) is in line connection with the first moisture detector (5).

6. The metal-enclosed sulfur hexafluoride ring main unit as claimed in claim 1, wherein the two sides of the protection box (3) are respectively and rotatably provided with an access door panel (2), and the access door panel (2) on one side of the protection box (3) is fixedly provided with a transparent glass (18).