CN205542143U - Gaseous cabinet electric shield pipe device of full insulation tubular busbar of prefabricated formula high pressure - Google Patents

Abstract

The utility model provides a gaseous cabinet electric shield pipe device of full insulation tubular busbar of prefabricated formula high pressure, including casing and electric shield pipe, the casing includes link, link and interface channel down, and interface channel includes interface channel and interface channel down, and the electric shield is managed and is set up under in the interface channel, and wrapping type 's insulation methods was compared more in the past, the utility model discloses an electric shield pipe device formula structure as an organic whole, it is aesthetic in appearance, and sealing performance good, the effect of putting in reduction office is more showing, it puts almost to reach zero innings, and the present invention has higher safety, and the mounting means is more convenient, simply, site operation and later maintenance have been made things convenient for, it needs the field fabrication for insulating component to be different from wrapping type simultaneously, electric shield pipe device is prefabricated formula, make a good whole in advance, the transportation has not only been made things convenient for, also by a wide margin the promotion construction efficiency with reduced later maintenance's the degree of difficulty.

Description

A prefabricated high-voltage fully insulated tubular busbar gas cabinet electrical shielding tube device

technical field

The utility model relates to a prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device.

Background technique

Tubular busbar is one of the key equipment in the power transmission and transformation system, which plays a vital role in the safe and reliable operation of the power transmission and transformation system and power equipment. It is mainly used in power grid transmission wires and substations in my country's electric power construction projects Conductor connections between transformers, jumper wires in transmission lines, connecting conductors in power equipment, and overcurrent conductors in high-current DC ice-melting devices.

At the same time, when the tubular busbar is connected to electrical equipment such as gas cabinets, excessive partial discharge is prone to occur, which greatly affects the working safety of various electrical equipment. In the past, the connection was mostly carried out by wrapping Shielding requires too many auxiliary materials and needs to be produced on site. Although it can reduce partial discharge (partial discharge) to a certain extent, the sealing is not good, the effect of reducing partial discharge is not particularly significant, and the service life Shorter, there are greater safety hazards, and at the same time, the installation method is cumbersome, and it is difficult to wrap, which is not conducive to on-site construction and later maintenance.

Utility model content

In view of the above problems, the utility model proposes a prefabricated high-voltage fully insulated tubular busbar gas cabinet electrical shielding tube device.

For solving above technical problem, the technical scheme that the utility model provides is:

A prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device, characterized in that it includes a shell and an electric shielding tube, the shell is cylindrical, and its upper and lower ends are provided with an upper connection end and a lower connection end , the upper connection end is in the shape of a truncated cone with a narrow top and a wide bottom, its outer surface is arranged obliquely, and the angle it forms with the vertical direction is a1, and the lower connection end is a truncated cone with a narrow bottom and a wide top. The outer surface is arranged obliquely, and the angle formed with the vertical direction is a2, and a1=a2;

The shell is a hollow structure, and a connecting channel is provided inside it. The connecting channel includes an upper connecting channel and a lower connecting channel. The upper connecting channel is in the shape of a conical cone with a narrow top and a wide bottom, and the cross section is an isosceles trapezoid. The lower connecting channel is cylindrical, and the inner wall of the lower connecting channel is provided with a circular electric shielding tube fixing groove. The upper connecting channel and the lower connecting channel are connected to each other. In the tube fixing slot, the size matches the electric shielding tube fixing slot;

Further, the vertical height of the upper connection end is D1, the vertical height of the upper connection channel is D2, and the D1 is smaller than D2;

Further, the inner wall of the electric shielding tube and the inner wall of the lower connecting channel are on the same cylindrical outer surface;

Further, the vertical distance between the upper end of the electric shielding tube and the upper end of the lower connecting channel is D3, the vertical distance between the lower end of the electric shielding tube and the lower end of the lower connecting channel is D4, and D3 is smaller than D4.

The beneficial effects of the utility model are:

The utility model proposes a prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device, which includes a shell and an electric shielding tube. The shell includes an upper connection end, a lower connection end and a connection channel, and the connection channel includes an upper connection channel. Compared with the lower connecting channel, the electric shielding tube is arranged in the lower connecting channel. Compared with the previous wrap-around insulation method, the electric shielding tube device of the utility model has an integrated structure, beautiful appearance, good sealing performance, and low cost. The effect of partial discharge is more significant, almost zero partial discharge, higher safety, and the installation method is more convenient and simple, which facilitates on-site construction and later maintenance. At the same time, it is different from the wrapping type, which requires on-site production of insulating components, and electric shielding The pipe device is prefabricated and prefabricated as a whole, which not only facilitates transportation, but also greatly improves the efficiency of construction and reduces the difficulty of later maintenance.

Description of drawings

Figure 1 is a schematic diagram of the utility model.

Fig. 2 The longitudinal section view of the utility model.

detailed description

As shown in the figure, a prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device is characterized in that it includes a shell 8 and an electric shielding tube 9, the shell 8 is cylindrical, and its upper and lower ends are set There are an upper connection end 10 and a lower connection end 11. The upper connection end 10 is a conical structure with a narrow top and a wide bottom. 11 is a frustum-shaped structure with a narrow bottom and a wide top, and its outer surface is arranged obliquely, and the angle it forms with the vertical direction is a2, and a1=a2;

The housing 8 is a hollow structure, and a connecting channel 12 is provided inside it. The connecting channel 12 includes an upper connecting channel 13 and a lower connecting channel 14. The upper connecting channel 13 is in the shape of a truncated cone with a narrow top and a wide bottom. Isosceles trapezoidal, the lower connecting channel 14 is cylindrical, the inner wall of the lower connecting channel 14 is provided with a circular electric shielding tube fixing groove 15, the upper connecting channel 13 and the lower connecting channel 14 communicate with each other, the electrical shielding tube The shielding tube 9 is hollow cylindrical, and is arranged in the fixing groove 15 of the electric shielding tube, and its size matches the fixing groove 15 of the electric shielding tube;

Further, the vertical height of the upper connecting end 10 is D1, the vertical height of the upper connecting channel 13 is D2, and the D1 is smaller than D2;

Further, the inner wall of the electric shielding tube 9 and the inner wall of the lower connecting channel 14 are on the same cylindrical outer surface;

Further, the vertical distance between the upper end of the electric shielding tube 9 and the upper end of the lower connecting channel 14 is D3, and the vertical distance between the lower end of the electric shielding tube 9 and the lower end of the lower connecting channel 14 is D4, and the D3 is smaller than D4.

The utility model proposes a prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device, which includes a shell and an electric shielding tube. The shell includes an upper connection end, a lower connection end and a connection channel, and the connection channel includes an upper connection channel. Compared with the lower connecting channel, the electric shielding tube is arranged in the lower connecting channel. Compared with the previous wrap-around insulation method, the electric shielding tube device of the utility model has an integrated structure, beautiful appearance, good sealing performance, and low cost. The effect of partial discharge is more significant, almost zero partial discharge, higher safety, and the installation method is more convenient and simple, which facilitates on-site construction and later maintenance. At the same time, it is different from the wrapping type, which requires on-site production of insulating components, and the insulating main body The components are prefabricated and prefabricated as a whole, which not only facilitates transportation, but also greatly improves the efficiency of construction and reduces the difficulty of later maintenance.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of Any changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (4)

1. A prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device, characterized in that it includes a shell and an electric shielding tube, the shell is cylindrical, and its upper and lower ends are provided with upper connecting ends and lower The connecting end, the upper connecting end has a frustum-shaped structure with a narrow top and a wide bottom, and its outer surface is arranged obliquely, and the angle with the vertical direction is a1, and the lower connecting end has a truncated circular structure with a narrow bottom and a wide top , its outer surface is arranged obliquely, and the angle it forms with the vertical direction is a2, the said a1=a2; The shell is a hollow structure, and a connecting channel is provided inside it. The connecting channel includes an upper connecting channel and a lower connecting channel. The upper connecting channel is in the shape of a conical cone with a narrow top and a wide bottom, and the cross section is an isosceles trapezoid. The lower connecting channel is cylindrical, and the inner wall of the lower connecting channel is provided with a circular electric shielding tube fixing groove. The upper connecting channel and the lower connecting channel are connected to each other. In the tube fixing slot, the size matches the electric shielding tube fixing slot. 2. A prefabricated high-voltage fully insulated tubular busbar gas cabinet electrical shielding pipe device as claimed in claim 1, wherein the vertical height of the upper connection end is D1, and the vertical height of the upper connection channel is D2 , the D1 is smaller than D2. 3. A prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding tube device as claimed in claim 1, wherein the inner wall of the electric shielding tube and the inner wall of the lower connecting channel are on the same cylindrical outer surface superior. 4. A prefabricated high-voltage fully insulated tubular busbar gas cabinet electric shielding pipe device as claimed in claim 1, wherein the vertical distance between the upper end of the electric shielding pipe and the upper end of the lower connecting channel is D3, and the electric shielding pipe is D3. The vertical distance between the lower end of the shielding tube and the lower end of the lower connection channel is D4, and the D3 is smaller than D4.