CN220041495U - Anti-icing flashover insulator - Google Patents
Anti-icing flashover insulator Download PDFInfo
- Publication number
- CN220041495U CN220041495U CN202321653312.3U CN202321653312U CN220041495U CN 220041495 U CN220041495 U CN 220041495U CN 202321653312 U CN202321653312 U CN 202321653312U CN 220041495 U CN220041495 U CN 220041495U
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- Prior art keywords
- umbrella
- shaped
- shaped insulating
- insulator
- string
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- 239000012212 insulator Substances 0.000 title claims abstract description 41
- 238000000576 coating method Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 239000011248 coating agent Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002313 adhesive film Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model relates to the technical field of insulators, in particular to an anti-icing flashover insulator, which comprises an insulating rod, wherein an umbrella-shaped insulator I is arranged at the top end of the insulating rod, an umbrella-shaped insulator string is arranged below the umbrella-shaped insulator, the size of the umbrella-shaped insulator I is larger than that of the umbrella-shaped insulator string, and anti-icing flashover coatings are arranged on the surfaces of the umbrella-shaped insulator I and the umbrella-shaped insulator string; according to the utility model, through the umbrella-shaped insulating part I and the umbrella-shaped insulating parts II with gradually reduced sizes from top to bottom, rainwater and snow water at the upper end can be effectively prevented from falling on the umbrella-shaped insulating part II below, and meanwhile, through the anti-pollution flashover coating with excellent hydrophobicity, the upper surfaces of the umbrella-shaped insulating part I and the umbrella-shaped insulating part string can not form water flow and water film, but exist independently in a plurality of discontinuous small water drops, so that the generation of leakage current is greatly restrained, and the pollution flashover voltage of the insulator is remarkably improved.
Description
Technical Field
The utility model relates to the technical field of insulators, in particular to an anti-icing flashover insulator.
Background
The insulator is also called a porcelain cross arm, and consists of an iron cap, an insulating piece and a steel foot, and is glued into a whole by cement glue. Insulators are widely used in power systems, generally belong to external insulation, and operate under atmospheric conditions. The bus bars of overhead transmission lines, power plants and substations and the external live conductors of various electrical equipment are all supported by insulators and insulated from the earth (or ground object) or other conductors with potential differences.
In the field, the high-voltage power transmission line bears very high voltage, and after the insulator is covered with ice, the insulator is quite likely to become a thick electric wire, so that a phenomenon called flashover discharge occurs, once the insulator is broken down, the whole line can trip and power off, so that economic loss is caused, and the existing hanging insulator cannot avoid ice covering in cold areas. In view of this, we propose an anti-icing flashover insulator.
Disclosure of Invention
In order to make up for the above disadvantages, the present utility model provides an anti-icing flashover insulator.
The technical scheme of the utility model is as follows:
the anti-icing flashover insulator comprises an insulating rod, wherein an umbrella-shaped insulating piece I is arranged at the top end of the insulating rod, and an umbrella-shaped insulating piece string is arranged below the umbrella-shaped insulating piece I;
the first umbrella-shaped insulating piece is larger than the string of umbrella-shaped insulating pieces in size, and the surfaces of the first umbrella-shaped insulating piece and the string of umbrella-shaped insulating pieces are provided with anti-pollution flashover coatings.
Preferably, the umbrella-shaped insulating piece string is composed of a plurality of umbrella-shaped insulating pieces II with gradually reduced sizes from top to bottom.
Preferably, the first umbrella-shaped insulating member has a size larger than that of the second uppermost umbrella-shaped insulating member.
Preferably, a plurality of second umbrella-shaped insulating pieces are arranged on the insulating rod.
Preferably, the top of the insulating rod is provided with an iron cap, and the lower end of the insulating rod is provided with a steel foot.
Preferably, the upper surfaces and the lower surfaces of the first umbrella-shaped insulating piece and the second umbrella-shaped insulating pieces are both raised upwards.
Preferably, the insulating rod, the first umbrella-shaped insulating member and the second umbrella-shaped insulating member are all made of insulating porcelain members.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the umbrella-shaped insulating part I and the umbrella-shaped insulating parts II with gradually reduced sizes from top to bottom, rainwater and snow water at the upper end can be effectively prevented from falling on the umbrella-shaped insulating part II below, and meanwhile, through the anti-pollution flashover coating with excellent hydrophobicity, the upper surfaces of the umbrella-shaped insulating part I and the umbrella-shaped insulating part string can not form water flow and water film, but exist independently in a plurality of discontinuous small water drops, so that the generation of leakage current is greatly restrained, and the pollution flashover voltage of the insulator is remarkably improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a schematic view of the present utility model in a cut-away configuration.
In the figure: 1. an iron cap; 2. an insulating rod; 3. umbrella-shaped insulator I; 4. umbrella-shaped insulator strings; 5. steel feet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing 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 present utility model.
Referring to fig. 1-2, the present utility model is described in detail by the following embodiments:
the anti-icing flashover insulator comprises an insulating rod 2, wherein the insulating rod 2 is vertically arranged at the upper end of a high-voltage frame and is perpendicular to the ground below, an iron cap 1 is fixedly arranged at the top end of the insulating rod 2, a steel foot 5 is fixedly arranged at the lower end of the insulating rod 2, and the iron cap 1 and the steel foot 5 are respectively used for fixedly connecting a high-voltage power transmission line and the high-voltage frame.
In this embodiment, the top end of the insulating rod 2 is provided with a fixed first umbrella-shaped insulating member 3, an umbrella-shaped insulating member string 4 is arranged below the first umbrella-shaped insulating member 3, the umbrella-shaped insulating member string 4 is composed of a plurality of second umbrella-shaped insulating members with gradually reduced sizes from top to bottom, the upper surfaces and the lower surfaces of the first umbrella-shaped insulating member 3 and the second umbrella-shaped insulating members are all protruded upwards, and liquid on the upper surfaces of the first umbrella-shaped insulating member 3 and the second umbrella-shaped insulating members can be guided to flow out along the upper surfaces.
In this embodiment, the size of the first umbrella-shaped insulating member 3 is far greater than the size of the first umbrella-shaped insulating member 4, that is, the first umbrella-shaped insulating member 3 can cover the upper side of the first umbrella-shaped insulating member 4, so as to prevent rainwater and snow water falling on the first umbrella-shaped insulating member 3 from falling on the lower umbrella-shaped insulating member 4, and the first umbrella-shaped insulating member 4 and the second umbrella-shaped insulating member 4 are also gradually reduced in size, and the surfaces of the first umbrella-shaped insulating member 3 and the second umbrella-shaped insulating member 4 are respectively provided with an anti-pollution flashover coating, the size of the first umbrella-shaped insulating member 3 is greater than the size of the second umbrella-shaped insulating member at the uppermost end, the second umbrella-shaped insulating member is fixedly mounted on the insulating rod 2, and the first umbrella-shaped insulating member 3 and the second umbrella-shaped insulating member are all made of insulating porcelain members.
The pollution flashover-preventing coating is made of room temperature vulcanized silicone rubber, the room temperature vulcanized silicone rubber is coated on the surfaces of the umbrella-shaped insulating piece I3 and the umbrella-shaped insulating piece string 4, a layer of adhesive film is formed after curing, the adhesive film has excellent hydrophobicity under clean conditions, when the surface layer of the adhesive film is covered by dirt, small molecular hydrophobic groups in the adhesive film can quickly pass through the dirt layer and migrate to the surface of the dirt layer, so that the surface of the dirt layer also has excellent hydrophobicity, and therefore, the surface of the dirt layer is difficult to wet under humid climates such as fog, dew, capillary rain and the like, and if the dirt layer is wet for a long time, the surface of the dirt layer also does not form water flow and a water film, but exists independently in a plurality of discontinuous small water beads, thereby greatly restricting the generation of leakage current and remarkably improving the pollution flashover voltage of the insulator.
In this embodiment, in a cold area, one end of the insulating rod 2 is vertically installed at the upper end of the high-voltage frame, and the other end of the high-voltage power transmission line is fixedly installed on the high-voltage power transmission line, when fog, dew, capillary rain and snow water fall on the first umbrella-shaped insulating member 3, the first umbrella-shaped insulating member 3 can cover the upper part of the umbrella-shaped insulating member string 4, and the anti-pollution flashover coating on the first umbrella-shaped insulating member 3 has excellent hydrophobicity, so that the upper surface of the first umbrella-shaped insulating member 3 also cannot form water flow and a water film, but exists independently in a plurality of discontinuous small water drops, thereby greatly restricting the generation of leakage current, remarkably improving the pollution flashover voltage of the insulator, and simultaneously, the upper surfaces of a plurality of second umbrella-shaped insulating members also cannot form water flow and the water film and exist independently in a plurality of discontinuous small water drops, thereby greatly restricting the generation of leakage current.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. Anti-icing flashover insulator, including insulator spindle (2), its characterized in that: an umbrella-shaped insulator I (3) is arranged at the top end of the insulating rod (2), and an umbrella-shaped insulator string (4) is arranged below the umbrella-shaped insulator I (3);
the first umbrella-shaped insulating piece (3) is larger than the umbrella-shaped insulating piece string (4), and the surfaces of the first umbrella-shaped insulating piece (3) and the umbrella-shaped insulating piece string (4) are provided with anti-pollution flashover coatings.
2. The anti-icing flashover insulator of claim 1, wherein: the umbrella-shaped insulating piece string (4) is composed of a plurality of umbrella-shaped insulating pieces II with gradually reduced sizes from top to bottom.
3. The anti-icing flashover insulator according to claim 2, wherein: the first umbrella-shaped insulating piece (3) is larger than the second umbrella-shaped insulating piece at the uppermost end.
4. The anti-icing flashover insulator according to claim 2, wherein: and a plurality of second umbrella-shaped insulating pieces are arranged on the insulating rod (2).
5. The anti-icing flashover insulator of claim 1, wherein: the top of the insulating rod (2) is provided with an iron cap (1), and the lower end of the insulating rod (2) is provided with a steel foot (5).
6. The anti-icing flashover insulator according to claim 2, wherein: the upper surfaces and the lower surfaces of the first umbrella-shaped insulating piece (3) and the second umbrella-shaped insulating pieces are both upwards protruded.
7. The anti-icing flashover insulator according to claim 2, wherein: the insulating rod (2), the umbrella-shaped insulating piece I (3) and the umbrella-shaped insulating piece II are all made of insulating porcelain pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653312.3U CN220041495U (en) | 2023-06-27 | 2023-06-27 | Anti-icing flashover insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653312.3U CN220041495U (en) | 2023-06-27 | 2023-06-27 | Anti-icing flashover insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041495U true CN220041495U (en) | 2023-11-17 |
Family
ID=88723076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321653312.3U Active CN220041495U (en) | 2023-06-27 | 2023-06-27 | Anti-icing flashover insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041495U (en) |
-
2023
- 2023-06-27 CN CN202321653312.3U patent/CN220041495U/en active Active
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