阅读说明：本技术 一种内绝缘加强型绝缘子 (Internal insulation reinforced insulator ) 是由 李阳 宋江保 李佳东 李铭志 马茜溪 赵凯峰 温江 于 2021-08-09 设计创作，主要内容包括：一种内绝缘加强型绝缘子,应用于带高压的控制设备的引出线,包括安装于绝缘支撑系统上、下两端的安装法兰,以及位于绝缘支撑系统外侧的外绝缘系统,绝缘支撑系统内侧设置有内绝缘系统；内绝缘系统包括内表皮绝缘层,内表皮绝缘层上设置有螺旋型伞裙；所述的螺旋型伞裙的内螺旋型伞裙边沿高出内螺旋型伞裙根部,且为弧形连接；本发明采用内螺旋加强型伞裙,增加了绝缘子内表面的沿面爬电距离,内螺旋型伞裙的边沿高出根部,且为弧形连接,便于放置控制引出线,且能够增加控制引出线在内螺旋型伞裙中的爬电距离,因此可以优化内绝缘加强型绝缘子的高度,达到节约材料和成本的目的,也避免了控制引出线外露,防老化和防损坏。(An internal insulation reinforced insulator is applied to a lead-out wire of control equipment with high voltage and comprises mounting flanges and an external insulation system, wherein the mounting flanges are mounted at the upper end and the lower end of an insulation support system; the inner insulation system comprises an inner skin insulation layer, and a spiral umbrella skirt is arranged on the inner skin insulation layer; the edge of the inner spiral type umbrella skirt of the spiral type umbrella skirt is higher than the root part of the inner spiral type umbrella skirt and is in arc connection; the invention adopts the internal spiral reinforced umbrella skirt, increases the creepage distance along the surface of the inner surface of the insulator, the edge of the internal spiral umbrella skirt is higher than the root and is in arc connection, thereby being convenient for placing the control outgoing line, and increasing the creepage distance of the control outgoing line in the internal spiral umbrella skirt, therefore, the height of the internal insulation reinforced insulator can be optimized, the purposes of saving materials and cost are achieved, and the control outgoing line is prevented from being exposed, aging and damage.)

1. An internal insulation reinforced insulator is applied to a lead-out wire of control equipment with high voltage, and comprises mounting flanges (1) arranged at the upper end and the lower end of an insulation support system (3) and an external insulation system (2) positioned at the outer side of the insulation support system (3), and is characterized in that an internal insulation system (4) is arranged at the inner side of the insulation support system (3); the inner insulation system (4) comprises an inner skin insulation layer (401), and a spiral umbrella skirt (402) is arranged on the inner skin insulation layer (401); the inner spiral type umbrella skirt edge (403) of the spiral type umbrella skirt (402) is higher than the inner spiral type umbrella skirt root (404) and is in arc connection.

2. The internal insulation reinforced insulator as recited in claim 1, wherein the skirt width of the spiral shed (402) is adapted to various types of lead-out wires, and the control lead-out wires (5) can be spirally coiled.

3. The insulator of claim 1, wherein the mounting flange (1) comprises an upper mounting flange (101) and a lower mounting flange (102), the upper mounting flange (101) is positioned above the insulating support system (3), and the lower mounting flange (102) is positioned below the insulating support system (3); the upper mounting flange (101) and the lower mounting flange (102) are directly cast and integrally formed with the insulating support system (3).

4. The insulator as claimed in claim 3, wherein the upper mounting flange (101) and the lower mounting flange (102) are provided with mounting holes (103) and a central hole (104).

5. The insulator of claim 1, wherein the outer insulation system (2) comprises an outer skin insulation layer (201), and a large shed (202) and a small shed (203) are arranged on the outer skin insulation layer (201) at intervals; the outer skin insulating layer (201), the large umbrella skirt (202) and the small umbrella skirt (203) are integrally formed by adopting a mould through pouring.

6. The insulator of claim 1, wherein the inner skin insulation layer (401) and the spiral shed (402) are integrally formed by die casting.

Technical Field

The invention belongs to the technical field of electric power, and particularly relates to an internal insulation reinforced insulator.

Background

Along with the continuous increase of the capacity of a power grid, a plurality of novel devices appear, a control device of part of the devices is directly connected with high-voltage equipment, the devices and the control device are subjected to equipotential processing, and meanwhile, part of control outgoing lines in the control device are led out outwards and are connected with a central control room through a low potential area. Generally, as shown in fig. 4, a plurality of post insulators and wall bushing are adopted to strengthen the ground insulation and creepage distance of the part of control outgoing line, and the control outgoing line is wrapped by a wrapping material to prevent aging and gnawing by small animals, so that the material usage amount is increased, the floor area of equipment is increased, the attractiveness of wiring is influenced, and the control outgoing line is not economical and practical.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention aims to provide an internal insulation reinforced insulator, which increases the creepage distance of the inner surface of the insulator, reduces the use amount of an external insulator and a wrapping material, and can prevent the aging and the damage of a control lead-out wire.

In order to achieve the purpose, the invention adopts the following technical scheme:

an internal insulation reinforced insulator is applied to a lead-out wire of control equipment with high voltage, and comprises mounting flanges 1 arranged at the upper end and the lower end of an insulation support system 3 and an external insulation system 2 positioned outside the insulation support system 3, wherein an internal insulation system 4 is arranged inside the insulation support system 3; the inner insulation system 4 comprises an inner skin insulation layer 401, and a spiral umbrella skirt 402 is arranged on the inner skin insulation layer 401; the inner spiral type umbrella skirt edge 403 of the spiral type umbrella skirt 402 is higher than the inner spiral type umbrella skirt root 404 and is in arc connection.

The skirt width of the spiral umbrella skirt 402 is adapted to outgoing lines of various types, and the outgoing lines 5 can be spirally coiled.

The mounting flange 1 comprises an upper mounting flange 101 and a lower mounting flange 102, wherein the upper mounting flange 101 is positioned above the insulating support system 3, and the lower mounting flange 102 is positioned below the insulating support system 3; the upper mounting flange 101 and the lower mounting flange 102 are directly integrally molded with the insulating support system 3 in a pouring mode.

The upper mounting flange 101 and the lower mounting flange 102 are provided with mounting holes 103 and a central hole 104.

The external insulation system 2 comprises an external skin insulation layer 201, wherein a large umbrella skirt 202 and a small umbrella skirt 203 are arranged on the external skin insulation layer 201 at intervals; the outer skin insulating layer 201, the large umbrella skirt 202 and the small umbrella skirt 203 are integrally formed by adopting a mould through pouring.

The inner skin insulating layer 401 and the spiral umbrella skirt 402 are integrally formed by casting in a mold.

Compared with the prior art, the invention has at least the following beneficial technical effects:

1. the internal insulation of the invention adopts a reinforced internal spiral umbrella skirt 402, and the internal spiral umbrella skirt 402 increases the creepage distance along the surface of the inner surface of the insulator.

2. According to the invention, the inner spiral type umbrella skirt edge 403 of the inner spiral type umbrella skirt 402 is higher than the inner spiral type umbrella skirt root 404 and is in arc connection, so that the control outgoing line 5 with high voltage can be spirally placed at the inner umbrella skirt root 404, and the creepage distance of the control outgoing line 5 in the inner spiral type umbrella skirt 402 is increased.

3. As described in the above 1 and 2, the internal spiral type shed 402 not only increases the creepage distance of the inner surface of the insulator, but also increases the creepage distance of the control outgoing line 5 in the internal spiral type shed 402, so that the height of the internal insulation reinforced insulator 6 can be optimized, and the purpose of saving materials and cost is achieved.

4. According to the invention, the control outgoing line 5 penetrates through the inner spiral umbrella skirt 402 in a spiral manner, so that the consumption of external insulators and wrapping materials is reduced, the control outgoing line 5 is prevented from being exposed, aging and biting by small animals, and the effects of reducing land occupation, saving cost and being attractive are achieved.

Drawings

Fig. 1 is a sectional view of an internal insulation reinforced insulator.

Fig. 2 is a sectional view of an internal spiral umbrella skirt of the internal insulation reinforced insulator.

Fig. 3 is a cross-sectional view showing the arrangement of the outgoing lines of the spiral umbrella skirt in the internal insulation reinforced insulator.

Fig. 4 is a diagram showing the wire-outgoing mode and the insulator layout when a conventional insulator is used.

Fig. 5 is a diagram showing a wire outgoing manner and an insulator layout when the internal insulation enhanced insulator of the present invention is used.

In the figure: 1-mounting flange, 101-lower mounting flange, 102-upper mounting flange, 2-outer insulation system, 201-outer skin insulation layer, 202-large shed, 203-small shed, 3-insulation support system, 4-inner insulation system, 401-inner skin insulation layer, 402-inner spiral shed, 403-inner spiral shed edge, 404-inner spiral shed root, 5-control outgoing line, 6-inner insulation reinforced insulator, 7-high voltage lead, 8-wall bushing, 9-control box, 10-power electronic device, 11-common post insulator.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Insulators are devices that are installed between conductors of different potentials or between a conductor and a ground potential member, can withstand the effects of voltage and mechanical stress, and play an important role in power systems. The insulator should not fail due to various electromechanical stresses resulting from changes in environmental and electrical loading conditions, which could otherwise cause short circuit failure. In the embodiment of the invention, the MCR type SVC valve group box is taken as an example, and the internal insulation reinforced insulator is applied to the voltage class of 6-220 kV.

Referring to fig. 1, an internal insulation reinforced insulator applied to a lead-out wire of a control device with high voltage includes a mounting flange 1, an external insulation system 2, an insulation support system 3 and an internal insulation system 4.

Wherein:

the insulation support system 3 is a hollow insulation cylinder;

the mounting flange 1 comprises an upper mounting flange 101 and a lower mounting flange 102;

the upper mounting flange 101 is positioned above the insulating support system 3, and the lower mounting flange 102 is positioned below the insulating support system 3;

the outer insulation system 2 is positioned outside the insulation support system 3;

the inner insulation system 4 is located inside the insulating support system 3.

The external insulation system 2 comprises an external skin insulation layer 201, and a large umbrella skirt 202 and a small umbrella skirt 203 are arranged on the external skin insulation layer 201 at intervals.

Referring to fig. 2 and 3, the inner insulation system 4 includes an inner skin insulation layer 401, a spiral type shed 402 is disposed on the inner skin insulation layer 401, an inner spiral type shed edge 403 of the spiral type shed 402 is higher than an inner spiral type shed root 404 and is connected in an arc shape, so that the control outgoing line 5 with high voltage can be spirally placed at the inner shed root 404, and thus the creepage distance of the control outgoing line 5 in the inner spiral type shed 402 is increased.

The skirt width of the spiral umbrella skirt 402 is adapted to leading-out wires of various types, so that the control leading-out wires 5 can be placed in a spiral manner conveniently, and the control leading-out wires 5 are spirally wound on the spiral umbrella skirt 402.

The upper mounting flange 101 and the lower mounting flange 102 are directly cast and integrally formed with the insulating support system 3.

The outer skin insulating layer 201, the large umbrella skirt 202 and the small umbrella skirt 203 are integrally formed by mould casting.

The inner skin insulating layer 401 and the spiral umbrella skirt 402 are integrally formed by casting in a mold.

The upper mounting flange 101 and the lower mounting flange 102 are provided with mounting holes 103 and a central hole 104.

The working principle of the invention is as follows:

the outgoing line 5 is controlled to spirally penetrate through the inner spiral type umbrella skirt 402, the edge 403 of the inner spiral type umbrella skirt 402 is higher than the root 404 of the inner spiral type umbrella skirt and is in arc connection, and the skirt width of the spiral type umbrella skirt 402 is adapted to outgoing lines of various models; the control lead-out wire 5 with a high voltage may be spirally placed at the inner shed root 404, thereby increasing the creepage distance of the control lead-out wire 5 in the inner spiral type shed 402.

Fig. 4 shows a wire outlet manner and an insulator layout diagram when a conventional insulator is used in the MCR type SVC valve train box; fig. 5 shows the wire-out mode and the insulator layout diagram of the MCR type SVC valve train box using the internal insulation reinforced insulator according to the embodiment of the present invention, and it can be seen from fig. 5 that the high-voltage wire 7 passes through the wall bushing 8 to be connected to the power electronic device 10 in the control box 9, and the control lead-out wire 5 of the power electronic device 10 is led out through the internal insulation reinforced insulator 6.

Compared with the graph of fig. 4, the ordinary post insulator 11 at the bottom of the original control box 9 is replaced by the internal insulation reinforced insulator 6, a wall bushing 8 and two ordinary post insulators 11 are omitted, the material use and the occupied area are reduced, the control lead 5 of the exposed part is reduced, and therefore the control lead wrapping material is correspondingly reduced.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and the disclosure. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.