CN215681534U

CN215681534U - Environment-friendly gas insulation switch cabinet

Info

Publication number: CN215681534U
Application number: CN202122282741.1U
Authority: CN
Inventors: 李雪城; 胡全丹; 袁孟佼; 李钊
Original assignee: NR Electric Co Ltd; NR Engineering Co Ltd; Changzhou NR Electric Power Electronics Co Ltd
Current assignee: NR Electric Co Ltd; NR Engineering Co Ltd; Changzhou NR Electric Power Electronics Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-28
Anticipated expiration: 2031-09-18

Abstract

The utility model relates to an environment-friendly gas insulation switch cabinet which comprises a cabinet body, wherein the interior of the cabinet body is divided into an air chamber, a mechanism chamber, a cable chamber, a pressure relief chamber and an instrument chamber by a partition plate, the mechanism chamber is positioned on the front side of the air chamber, the cable chamber is positioned below the mechanism chamber, the pressure relief chamber is positioned on the lower side of the air chamber, and the instrument chamber is positioned above the mechanism chamber; the gas chamber is filled with nitrogen; baffle I that is located air chamber front side and bottom is integrated into one piece's sheet metal structure, and the curb plate that is located the air chamber both sides is integrated into one piece's sheet metal structure respectively. The utility model has convenient and quick installation and convenient maintenance, can effectively improve the sealing effect of the air chamber, avoids the leakage of insulating gas and ensures the insulating property of the switch cabinet.

Description

Environment-friendly gas insulation switch cabinet

Technical Field

The utility model belongs to the technical field of power switch equipment, and particularly relates to an environment-friendly gas insulation switch cabinet.

Background

The gas insulated switch cabinet seals the switch element in the box filled with gas insulated medium with certain pressure, and is not affected by external environment.

The internal structure of the existing gas insulation switch cabinet is distributed in a mess, so that the installation is complex, and the later maintenance is not convenient. And the air chamber wall of the traditional gas insulation switch cabinet adopts a combined assembly structure, so that the problem of sealing failure is easily caused, and the leakage of insulating gas is caused, thereby affecting the insulation performance of the switch cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an environment-friendly gas insulation switch cabinet to solve the problem of poor sealing effect.

The environment-friendly gas insulation switch cabinet is realized by the following steps:

an environment-friendly gas insulation switch cabinet comprises a cabinet body, wherein the interior of the cabinet body is divided into an air chamber, a mechanism chamber, a cable chamber, a pressure relief chamber and an instrument chamber by a partition plate,

the mechanism chamber is positioned on the front side of the air chamber, the cable chamber is positioned above the mechanism chamber, the pressure relief chamber is positioned on the lower side of the air chamber, and the instrument chamber is positioned below the mechanism chamber;

the gas chamber is filled with nitrogen;

be located baffle I of air chamber front side and bottom is integrated into one piece's sheet metal structure, is located the curb plate I of air chamber both sides is integrated into one piece's sheet metal structure respectively.

Furthermore, a visual window is arranged on the rear wall of the air chamber.

Further, install the back shrouding on the back lateral wall of air chamber, the viewing aperture has been seted up on the back shrouding, viewing aperture department installs the transparent plate, the apron is installed in the outside of transparent plate.

Further, install the combination switch in the air chamber, the combination switch upper end is passed through the flexible coupling copper bar and is expanded the insulator with the side and link to each other, and the lower extreme passes through the copper bus and links to each other with the inlet wire sleeve pipe.

Furthermore, an inwards-concave waist-shaped stamping groove is formed in each side plate I, and the upper end of each side expanding insulator is installed in each waist-shaped stamping groove.

Further, the inlet wire sleeve is installed in one side of baffle I towards the air chamber, just baffle I of inlet wire sleeve upside is provided with the circular arc chamfer.

Furthermore, umbrella skirts are arranged on the side expanding insulator and the incoming line sleeve.

Further, the combination switch includes front and rear end plates, and isolator subassembly and circuit breaker subassembly of installation between front and rear end plate, the isolator subassembly is located the top of circuit breaker subassembly.

Furthermore, a housing is installed on one side of the isolating switch assembly.

Furthermore, an isolation operation mechanism and a circuit breaker operation mechanism are installed in the mechanism chamber.

After the technical scheme is adopted, the utility model has the beneficial effects that:

(1) the insulating gas of the utility model adopts nitrogen, which can reduce greenhouse effect and prevent environmental pollution caused by gas leakage;

(2) the cabinet adopts a modular design, namely the interior of the cabinet body is divided into the compartments according to functions, so that the installation is convenient and quick, and the maintenance is convenient;

(3) the air chamber, the partition plates of other compartments and the side plates are of integrally formed metal plate structures, so that the sealing effect of the air chamber can be effectively improved, the leakage of insulating gas is avoided, and the insulating property of the switch cabinet is ensured.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a structural view of an eco-friendly gas insulated switchgear in accordance with a preferred embodiment of the present invention;

FIG. 2 is a left side view of the interior of the eco-friendly gas insulated switchgear of the preferred embodiment of the present invention;

FIG. 3 is a sectional view of a visible window of the eco-friendly gas insulated switchgear in accordance with the preferred embodiment of the present invention;

fig. 4 is a rear view of a combination switch of the eco-friendly gas insulated switchgear of the preferred embodiment of the present invention;

FIG. 5 is a structural view of a partition plate I of the eco-friendly gas insulated switchgear in accordance with the preferred embodiment of the present invention;

in the figure: the intelligent cabinet comprises a cabinet body 1, an air chamber 11, side plates I11-1, kidney-shaped stamping grooves 11-11, a rear sealing plate 11-2, a transparent plate 11-3, a cover plate 11-4, sealing gaskets 11-5, studs 11-6, cap nuts 11-7, a mechanism chamber 12, a gas-pressure meter device 12-1, an electromagnetic lock device 12-2, a live display device 12-3, a fault indication device 12-4, side plates II 12-5, a cable chamber 13, a pressure relief chamber 14, an instrument chamber 15, a partition plate I16, an arc chamfer 16-1, a combination switch 2, a front end plate 21, a rear end plate 22, an isolation switch assembly 23, a circuit breaker assembly 24, a lower mounting seat 25, a housing 26, a side expansion insulator 3, a copper bus 4, a wire inlet sleeve 5, an isolation operation mechanism 6, a circuit breaker operation mechanism 7, a fixing support I8 and a fixing support II 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1-5, an environment-friendly gas-insulated switchgear includes a switchgear body 1, the inside of the switchgear body 1 is partitioned into an air chamber 11, a mechanism chamber 12, a cable chamber 13, a pressure relief chamber 14 and an instrument chamber 15 by partitions, the mechanism chamber 12 is located at the front side of the air chamber 11, the cable chamber 13 is located below the mechanism chamber 12, the pressure relief chamber 14 is located at the lower side of the air chamber 11, and the instrument chamber 15 is located above the mechanism chamber 12; the gas chamber 11 is filled with nitrogen; the baffle I16 located at the front side and the bottom of the air chamber 11 is of an integrally formed sheet metal structure, and the side plates I11-1 located at the two sides of the air chamber 11 are of integrally formed sheet metal structures respectively.

In order to observe the opening and closing state of the air chamber 11, a visual window is arranged on the rear wall of the air chamber 11.

In order to form a visual window structure, a rear sealing plate 11-2 is arranged on the rear side wall of the air chamber 11, an observation port is formed in the rear sealing plate 11-2, a transparent plate 11-3 is arranged at the observation port, and a cover plate 11-4 is arranged on the outer side of the transparent plate 11-3.

Specifically, evenly distributed studs 11-6 are welded and fixed around the rear sealing plate 11-2, the transparent plate 11-3 and the cover plate 11-4 sequentially penetrate through the studs 11-6, a sealing gasket 11-5 is arranged between the transparent plate 11-3 and the rear sealing plate 11-2, the cover plate 11-4 is located on the outer side of the transparent plate 11-3, a cover nut 11-7 is arranged outside the cover plate 11-4, the cover nut 11-7 is in threaded connection with the studs 11-6, connection among the cover plate 11-4, the transparent plate 11-3 and the rear sealing plate 11-2 is achieved, a visual window structure is formed, and the corresponding state of a switch in the air chamber 11 can be observed visually.

The cover plate 11-4 is of a square frame structure, the middle of the cover plate is hollow, the cover plate is used for fixing the transparent plate 11-3, and the transparent plate 11-3 can be exposed, so that a visible window structure is formed.

Preferably, the transparent plate 11-3 may be selected from, but not limited to, a transparent acrylic plate.

In order to realize the function of the switch cabinet, a combination switch 2 is installed in the air chamber 11, the upper end of the combination switch 2 is connected with a side expansion insulator 3 through a flexible connection copper bar, and the lower end of the combination switch is connected with an inlet wire sleeve 5 through a copper bus 4.

Preferably, the outer surface of the copper bus 4 is subjected to insulation treatment by a plastic dipping process, and the insulation material has strong adhesiveness and excellent electrical insulation performance.

In order to improve the aesthetic property of the cabinet body 1, the side plates I11-1 are respectively provided with an inwards-concave kidney-shaped punching groove 11-11, and the upper ends of the side expanding insulators 3 are arranged in the kidney-shaped punching grooves 11-11.

Specifically, an assembly hole matched with the side-expanded insulator 3 is punched in the kidney-shaped punching groove 11-11, and the upper end of the side-expanded insulator 3 is correspondingly installed in the assembly hole.

The arrangement of the kidney-shaped stamping grooves 11-11 can save space, and can also enhance the strength of the side plate I11-1 and avoid the problem of welding deformation.

In order to reduce partial discharge, the inlet bushing 5 is arranged on one side of the partition plate I16 facing the air chamber 11, and the partition plate I16 on the upper side of the inlet bushing 5 is provided with a circular arc chamfer 16-1.

Specifically, cable chamber 13 and rear side and pressure release chamber 14 all are located the below of air chamber 11, and the height of cable chamber 13 is higher than the height of pressure release chamber 14, therefore baffle I16 when passing through to the top of pressure release chamber 14 from the top of cable chamber 13, need bend baffle I16, and through the setting of circular arc chamfer 16-1, can avoid the point discharge phenomenon that the bending produced effectively.

In order to improve the insulating property, umbrella skirts are arranged on the side expanding insulator 3 and the wire inlet sleeve 5.

The umbrella skirt can solve the problem of insulating partial discharge of a power plant with uneven switching in a nitrogen medium.

In order to reduce the difficulty of closing, the combined switch 2 comprises a front end plate 21 and a rear end plate 22, and a disconnecting switch assembly 23 and a circuit breaker assembly 24 which are arranged between the front end plate 21 and the rear end plate 22, wherein the disconnecting switch assembly 23 is positioned above the circuit breaker assembly 24.

Specifically, the combination switch 2 further comprises an upper mounting seat and a lower mounting seat 25, the isolating switch assembly 23 is fixedly connected with the upper mounting seat, the circuit breaker assembly 24 is fixedly connected with the lower mounting seat 25, the front end plate 21 is connected with the front sides of the upper mounting seat and the lower mounting seat 25, and the rear end plate 22 is connected with the rear sides of the upper mounting seat and the lower mounting seat 25.

The combined switch 2 adopts an arrangement scheme that the isolating switch is arranged above the circuit breaker, the grounding closing task is completed by the circuit breaker, and closing is easier to realize.

To improve the insulation performance, a cover 26 is mounted to one side of the disconnection switch assembly 23.

Preferably, the housing 26 is made of a composite insulating material.

In order to facilitate the operation of the combination switch 2, the isolation operating mechanism 6 and the breaker operating mechanism 7 are installed in the mechanism chamber 12.

The isolation operating mechanism 6 is connected to the isolator assembly 23 and the circuit breaker operating mechanism 7 is connected to the circuit breaker assembly 24.

Specifically, a barometer device 12-1, an electromagnetic lock device 12-2, a live display device 12-3 and a fault indication device 12-4 are arranged on a front side plate of the mechanism chamber 12, wherein a fixed support I8 and a fixed support II 9 are arranged in the mechanism chamber 12, and the side plates II 12-5 positioned on two sides of the mechanism chamber 12 are connected with the side plate I11-1. The barometer device 12-1 is fixed on the side face, facing the mechanism chamber 12, of the partition plate I16 and communicated with the interior of the air chamber 11, the electromagnetic lock device 12-2 is installed on the fixing support I8, the fixing support I8 is located in the middle of the mechanism chamber 12, one end of the fixing support is fixed on the side plate II 12-5 through threads, the electrified display device 12-3 and the fault indication device 12-4 are installed on the fixing support II 9, the fixing support II 9 is arranged on the upper portion of the mechanism chamber 12, and two ends of the fixing support are fixed on the side plate II 12-5 through threads.

The relative pressure of the insulating gas in the gas chamber 11 is 0.01-0.03MPa, and the insulating gas adopts environment-friendly nitrogen, so that the greenhouse effect and the generated environmental pollution are reduced.

The gas insulation switch cabinet disclosed by the utility model has the advantages of compact structure, convenience in installation and maintenance, safety and reliability, and environmental pollution prevention.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An environment-friendly gas insulation switch cabinet is characterized by comprising a cabinet body (1), wherein the cabinet body (1) is internally divided into an air chamber (11), a mechanism chamber (12), a cable chamber (13), a pressure relief chamber (14) and an instrument chamber (15) by a partition plate,

the mechanism chamber (12) is positioned at the front side of the air chamber (11), the cable chamber (13) is positioned below the mechanism chamber (12), the pressure relief chamber (14) is positioned at the lower side of the air chamber (11), and the instrument chamber (15) is positioned above the mechanism chamber (12);

the gas chamber (11) is filled with nitrogen;

baffle I (16) that are located air chamber (11) front side and bottom are integrated into one piece's sheet metal structure, are located curb plate I (11-1) of air chamber (11) both sides are integrated into one piece's sheet metal structure respectively.

2. Environmentally friendly gas-insulated switchgear cabinet according to claim 1, characterized in that the rear wall of the gas chamber (11) is provided with a viewing window.

3. The environmentally friendly gas insulated switchgear according to claim 2, wherein a rear sealing plate (11-2) is installed on a rear side wall of the gas chamber (11), an observation opening is opened on the rear sealing plate (11-2), a transparent plate (11-3) is installed at the observation opening, and a cover plate (11-4) is installed on an outer side of the transparent plate (11-3).

4. The environment-friendly gas-insulated switchgear according to claim 1, wherein a combination switch (2) is installed in the gas chamber (11), the upper end of the combination switch (2) is connected with the side-expanding insulator (3) through a flexible connection copper bar, and the lower end is connected with the incoming line bushing (5) through a copper bus (4).

5. The environmentally friendly gas insulated switchgear cabinet according to claim 4, wherein the side plates I (11-1) are respectively provided with an inwardly recessed kidney-shaped stamping groove (11-11), and the upper ends of the side expanding insulators (3) are installed in the kidney-shaped stamping grooves (11-11).

6. Environment-friendly gas-insulated switchgear according to claim 4, characterized in that the service bushing (5) is mounted on the side of the partition I (16) facing the gas chamber (11), and the partition I (16) on the upper side of the service bushing (5) is provided with a rounded chamfer (16-1).

7. The environmentally friendly gas insulated switchgear according to claim 4, characterized in that said side-extended insulator (3) and said incoming line bushing (5) are provided with sheds.

8. Environmentally friendly gas-insulated switchgear cabinet according to claim 4, characterized in that the combined switch (2) comprises a front end plate (21) and a rear end plate (22), and a disconnector assembly (23) and a circuit breaker assembly (24) mounted between the front end plate (21) and the rear end plate (22), the disconnector assembly (23) being located above the circuit breaker assembly (24).

9. Environmentally friendly gas-insulated switchgear cabinet according to claim 8, characterized in that a housing (26) is mounted on one side of the disconnector module (23).

10. Environmentally friendly gas-insulated switchgear cabinet according to claim 1, characterized in that the mechanism chamber (12) has installed therein an isolation operating mechanism (6) and a circuit breaker operating mechanism (7).