CN219873002U - Disk insulator with displacement compensation structure - Google Patents

Abstract

The utility model belongs to the field of high-voltage insulating equipment, and particularly discloses a disc insulator with a displacement compensation structure, which comprises a rigid insulator, wherein an installation channel for accommodating an inner core of an electrical device to pass through is formed in the middle of the rigid insulator, a flexible sealing body is arranged in the installation channel and is provided with an embedded body and a core sealing body, the embedded body is connected with the rigid insulator, the core sealing body is sleeved on the inner core of the electrical device to form a seal, the embedded body is radially connected with the end part of the core sealing body, and a compensation gap is formed between the embedded body and the core sealing body in a radial interval. Adopt rigid-flexible composite structural style, set up the flexible sealing mechanism who has the displacement compensation function, when equipment takes place the displacement, can follow axial, radial multi-angle and carry out the compensation in a large scale, when guaranteeing disc insulator performance, greatly improved the safety in utilization of insulator, guarantee the high strength durable leakproofness of equipment, effectively solved the problem that prior art takes place sealed inefficacy easily.

Description

Disk insulator with displacement compensation structure

Technical Field

The utility model relates to the field of high-voltage insulation equipment, in particular to a disc insulator with a displacement compensation structure.

Background

The disc insulator (basin insulator) plays a plurality of roles of insulation, support and sealing in high-voltage electrical equipment, and the running condition determines the safe and reliable running of the electrical equipment and even the whole power plant or transformer substation. However, in the actual operation process, due to defects of the disc insulator structure, abnormality such as air leakage and partial discharge often occurs, and if the abnormality is not found and handled in time, a trip accident is highly likely to be further caused.

The inner disc (basin) insulator and the equipment in the prior art are connected and sealed in a mode of adding sealant or rubber rings, then in actual operation, the equipment can displace due to the influence of other factors, after the displacement exceeds a certain limit, the original sealing measures can fail, even the permanent damage of a sealing structure can be caused, and leakage can occur.

Disclosure of Invention

In view of the above, the present utility model provides a disc insulator with a displacement compensation structure, which is used for solving or partially solving the problem that the conventional disc insulator in the market is easy to have sealing failure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a disc insulator with displacement compensation structure, includes the rigid insulator, the rigid insulator middle part forms the installation passageway that holds electrical equipment inner core and pass, wherein, establish flexible seal in the installation passageway, flexible seal has embedded body and core seal, embedded body with the rigid insulator is connected, the core seal cup joints and forms sealedly in electrical equipment inner core, embedded body and core seal tip radial connection, embedded body and core seal form the compensation space at radial interval.

According to the disc insulator with the displacement compensation structure, the mode of the integral rigid structure of the traditional disc insulator is structurally changed, the rigid-flexible composite structural mode is adopted, and the flexible sealing mechanism with the displacement compensation function is arranged, so that when equipment is displaced, the large-scale compensation can be carried out from multiple angles in the axial direction and the radial direction, the use safety of the insulator is greatly improved while the performance of the disc insulator is ensured, the high-strength durable sealing performance of the equipment is ensured, and the problem that the sealing failure easily occurs in the prior art is effectively solved.

Preferably, the insert body and the core seal are integrally formed. The integral molding contributes to the sealability of the structure and the overall strong resilience.

Preferably, the outer ring edge of the embedded body protrudes in the radial direction and is connected with a fixing cap. The connecting fixing cap is arranged to facilitate the connection of the embedded body and the rigid insulator.

Preferably, the connecting fixing cap is provided with a plurality of connecting holes, and the flexible sealing body is detachably connected to the rigid insulator through the connecting holes.

Optionally, the embedded body is pre-embedded in the mounting channel of the rigid insulator.

Optionally, a fastening washer is arranged outside the connecting and fixing cap, a plurality of washer holes corresponding to the connecting holes are formed in the fastening washer, and the flexible sealing body sequentially penetrates through the fastening washer and the connecting and fixing cap to be in screwed connection with the rigid insulator through a plurality of screws.

Preferably, the locking ring is sleeved outside the end, far away from the end connected with the core sealing body, of the embedded body.

Preferably, a plurality of elastic supporting pieces are arranged in the compensating gap. The elastic connection member needs to be added compared with the flexible gap spacing support, but the support effect is better.

Preferably, the elastic support member is a spring.

Preferably, the width of the compensating gap is more than or equal to 5mm. The compensation gap provides the self deformation range of 1-5 mm for the core sealing body, can meet the angle and displacement compensation under the existing use environment, and fully meets the equipment sealing under various working conditions.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a disc insulator according to the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of the flexible seal body of FIG. 3;

FIG. 5 is a view showing the effect of the disc insulator according to the present utility model;

fig. 6 is a schematic diagram of another structure of a disc insulator according to the present utility model.

Reference numerals illustrate:

wherein 1, a rigid insulator; 2. a flexible seal; 3. a fastening washer; 4. a locking ring; 5. a fastening screw; 6. an electrical equipment outer tube; 7. an electrical device inner core; 21. an embedded body; 22. a core seal; 23. connecting a fixing cap; 24. compensating for the gap; 25. and a connection hole.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown, but in which the utility model is not limited to the embodiments shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The disc insulator with the displacement compensation structure of the present utility model is described below with reference to fig. 1 to 6.

Referring to fig. 1 to 5, fig. 1 to 5 show a schematic structural diagram of a disc insulator with a displacement compensation structure according to the present utility model. The disc insulator with the displacement compensation structure of this embodiment is used for the insulation of high-voltage electrical equipment, and this disc insulator with displacement compensation structure can include rigid insulator 1, and rigid insulator 1 is disc or basin type, and the middle part has the installation passageway that holds electrical equipment inner core and pass, establishes flexible seal body 2 in the installation passageway, and flexible seal body 2 has the sealed passageway in middle part, forms sealedly to it when electrical equipment inner core passes, and sealed passageway's periphery still has compensation gap 24, and when electrical equipment takes place to take place the displacement in the operation, compensation gap 24 can compensate the positional deviation of electrical equipment inner core and sealed passageway in certain limit, carries out the displacement compensation from axial, radial multi-angle.

Because the high-voltage equipment has high temperature during operation, the common rigid insulator and rubber sealing ring form is adopted, high-temperature aging is easy to occur, and the sealing effect is poor; and the flexible insulator with high sealing performance is adopted, so that the condition of insufficient insulating strength can occur, and the high voltage of tens of thousands of volts can not be born. The disc insulator with the displacement compensation structure of the embodiment can ensure that high-voltage insulation is not affected under the condition of having a sealing effect.

Specifically, as shown in fig. 1, the rigid insulator 1 is a disc-type corrugated tube, and has a conventional structure in the prior art, and its outer peripheral edge abuts against an electrical equipment outer tube 6 of an electrical equipment, and an electrical equipment inner core 7 of an internal installation channel power supply equipment penetrates.

Specifically, as a main structure of the present embodiment, the flexible sealing body 2 is provided between the rigid insulator 1 and the electrical equipment core 7, and is connected to the rigid insulator 1 to form a seal protection for the electrical equipment core 7.

Further, as shown in fig. 4, the flexible sealing body 2 includes an embedded body 21 and a core sealing body 22, the embedded body 21 and the core sealing body 22 are supported by adopting a flexible gap interval, a specific supporting part is a connecting part located at one end edge of the embedded body 21 and one end edge of the core sealing body 22, the embedded body 21, the connecting part and the core sealing body 22 are integrally formed to form a structure of an outer pipe sleeve inner pipe, and the core sealing body 22 is used as the inner pipe to be directly in sealing sleeve joint with the electric equipment inner core 7.

Further, in other embodiments, elastic spacing support is adopted between the embedded body 21 and the core sealing body 22, and a plurality of elastic supporting pieces can be arranged, so that elastic connecting components are required to be added compared with flexible gap spacing support, but the supporting effect is better; preferably, the resilient support may be a spring.

Further, in the present embodiment, as shown in fig. 2 and 3, the outer circumferential edge of the embedded body 21 is protruded with a connection fixing cap 23 in the radial direction, and a connection hole 25 in the axial direction is opened at the connection fixing cap 23 and is detachably connected to the rigid insulator 1 by a fastening screw 5.

Further, the connecting and fixing cap 23 is externally provided with a fastening washer 3, a plurality of washer holes corresponding to the connecting holes 25 are formed in the fastening washer 3, and the flexible sealing body 2 sequentially penetrates through the fastening washer 3 and the connecting and fixing cap 23 through a plurality of fastening screws 5 to be in screwed connection with the rigid insulator 1.

Further, in other embodiments, the outer ring edge of the embedded body 21 may also be protruded with the connection fixing cap 23 in the radial direction, and the connection fixing cap 23 and the embedded body 21 are connected to the rigid insulator 1 by pre-buried manner.

Further, in other embodiments, the embedded body 21 may be directly connected to the rigid insulator 1 by pre-embedding without providing the connection fixing cap 23.

Further, in the present embodiment, the width of the compensating gap 24 is greater than or equal to 5mm, and the compensating gap has a self deformation range of 1-5 mm, so that the angle and displacement compensation in the existing use environment can be satisfied, and the equipment sealing under various working conditions can be fully satisfied.

Referring to fig. 6, fig. 6 shows another schematic structural diagram of a disc insulator with a displacement compensation structure according to the present utility model.

As shown in fig. 6, the other embodiment is a structure in which connection is performed in a pre-buried manner, in which the outer circumferential edge of the embedded body 21 is protruded with a connection fixing cap 23 in the radial direction, and the connection fixing cap 23 and the embedded body 21 are connected to the rigid insulator 1 in a pre-buried manner.

Further, in any of the above embodiments, the flexible sealing body 2 is an insulating sealing material having a flexible resiliency, such as fluororubber, silicone rubber, or the like.

Further, in any of the above embodiments, the embedded body 21 of the flexible sealing body 2 is connected to the core sealing body 22 at one end, and at the other end far from the connecting end, a locking ring 4 is sleeved outside the core sealing body 22, and the locking ring 4 fastens the core sealing body 22 to the inner core 7 of the electrical device, so as to form a sealing surface contact.

It should be appreciated that in practice, the rigid insulator and flexible seal may be connected by any conventional connection means known in the art, such as, for example, screws, bonding, embedding, etc. Some or all of them can be selected according to actual needs to achieve the purpose of the embodiment scheme. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Compared with the traditional disc insulator with the displacement compensation structure, the disc insulator with the displacement compensation structure provided by the utility model changes the integral rigid structure of the original disc (basin) insulator due to the adoption of the flexible sealing body with the compensation gap, adopts the rigid-flexible composite structure, and the rigid part and the flexible part are connected into a whole in an external fixation or embedded way, and the flexible part compensates displacement in an axial and radial multi-angle way by virtue of large-range deformation of the flexible part so as to fully meet the sealing of equipment under various working conditions.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Thus, various changes and modifications to the disclosed features and combinations of features not explicitly shown herein may be made by those skilled in the art within the scope of the utility model. The foregoing description of the embodiments and examples are illustrative rather than limiting.

Claims (10)

1. The utility model provides a disc insulator with displacement compensation structure, includes the rigid insulator, the rigid insulator middle part forms the installation passageway, its characterized in that, establish flexible seal in the installation passageway, flexible seal has embedded body and core seal, embedded body with the rigid insulator is connected, embedded body and core seal tip radial connection, embedded body and core seal form the compensation space at radial interval.

2. The disc insulator with the displacement compensation structure of claim 1, wherein the embedded body and the core seal are integrally formed.

3. The disc insulator with the displacement compensation structure according to claim 1, wherein the outer ring edge of the embedded body protrudes in a radial direction with a connection fixing cap.

4. A disc insulator with a displacement compensation structure according to claim 3, wherein the connection fixing cap is provided with a plurality of connection holes, and the flexible sealing body is detachably connected to the rigid insulator through the connection holes.

5. The disc insulator with the displacement compensation structure according to claim 4, wherein a fastening washer is arranged outside the connection fixing cap, a plurality of washer holes corresponding to the connection holes are formed in the fastening washer, and the flexible sealing body sequentially penetrates through the fastening washer and the connection fixing cap to be in threaded connection with the rigid insulator through a plurality of fastening screws.

6. A disc insulator with a displacement compensation structure according to claim 2 or 3, characterized in that the embedded body is pre-embedded in the mounting channel of the rigid insulator.

7. The disc insulator with the displacement compensation structure according to claim 1, wherein a locking ring is sleeved outside an end of the embedded body, which is far away from the end connected with the core sealing body.

8. The disc insulator with the displacement compensation structure according to claim 1, wherein a plurality of elastic supporting members are provided in the compensation gap.

9. The disc insulator with the displacement compensation structure of claim 8, wherein the elastic support is a spring.

10. The disc insulator with the displacement compensation structure according to claim 1, wherein the width of the compensation gap is equal to or more than 5mm.