CN113851285A - Hollow composite insulator with shielding layer and processing method thereof - Google Patents
Hollow composite insulator with shielding layer and processing method thereof Download PDFInfo
- Publication number
- CN113851285A CN113851285A CN202111072740.2A CN202111072740A CN113851285A CN 113851285 A CN113851285 A CN 113851285A CN 202111072740 A CN202111072740 A CN 202111072740A CN 113851285 A CN113851285 A CN 113851285A
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- Prior art keywords
- epoxy
- shielding layer
- flanges
- composite insulator
- flange
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 239000012212 insulator Substances 0.000 title claims abstract description 32
- 238000003672 processing method Methods 0.000 title abstract description 6
- 239000004593 Epoxy Substances 0.000 claims abstract description 58
- 238000004804 winding Methods 0.000 claims description 23
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
- H01B19/02—Drying; Impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
- Insulators (AREA)
Abstract
The invention discloses a hollow composite insulator with a shielding layer, which comprises an epoxy pipe, wherein the shielding layer is arranged in the pipe body at two ends of the epoxy pipe in a surrounding manner, flanges are symmetrically arranged at two ends of the epoxy pipe, through holes are formed in the side walls of the flanges at the two ends, a grounding terminal is arranged outside the through hole on the flange, a grounding lead is wound on the shielding layer in the pipe body at two ends of the epoxy pipe, the grounding lead extends to the outer side of the shielding layer and penetrates through the through hole on the flange at the corresponding end to be welded with the grounding terminal, and an umbrella skirt is also sleeved on the epoxy pipe between the two flanges; the invention also discloses a processing method of the hollow composite insulator with the shielding layer. The hollow composite insulator prepared by the invention has the functions of voltage sharing and shielding an electric field at the flange, and can be used on a sleeve as a single component with the voltage sharing function.
Description
Technical Field
The invention relates to a hollow composite insulator with a shielding layer and a processing method thereof, belonging to the field of electricity.
Background
Conventional hollow composite insulator uses on electrical equipment as an electrical insulation support component, does not have the effect of voltage-sharing, when flange ground connection or connection high pressure, needs electrical equipment self correlation structure to carry out the voltage-sharing usually, makes electric field distribution even relatively, avoids the electric field of hollow composite insulator's flange tip inhomogeneous simultaneously, avoids hollow composite insulator's flange to produce the corona.
Disclosure of Invention
The hollow composite insulator prepared by the invention has the functions of voltage sharing and shielding an electric field at a flange and can be used as a single component with the voltage sharing function on a sleeve.
The technical scheme adopted by the invention is as follows:
the utility model provides a hollow composite insulator with shielding layer, including the epoxy pipe, the both ends body inner loop of epoxy pipe is provided with the shielding layer, both ends symmetry at the epoxy pipe is provided with the flange, be formed with on the inner wall of flange and supply epoxy pipe tip male ladder groove, the ladder inslot of the flange that corresponds the section is inserted respectively at the both ends of epoxy pipe and with flange fixed connection, all be provided with the through-hole on the flange lateral wall at both ends, the through-hole outside is provided with ground terminal on the flange, the winding has ground lead on the shielding layer in the epoxy pipe both ends body, ground lead extends to the shielding layer outside and alternates the through-hole on the flange that corresponds the end and the ground terminal welding that the through-hole outside set up, it is equipped with the full skirt still to overlap on the epoxy pipe between two flanges.
Preferably, sealing rings are further disposed at the contact positions of the two ends of the epoxy pipe 1 and the corresponding stepped grooves of the flange 3.
Preferably, the umbrella skirt is made of silicon rubber.
A processing method of a hollow composite insulator with a shielding layer comprises the following steps:
the method comprises the following steps: winding epoxy resin fibers on a winding mould, and winding shielding layers at two ends after winding to a certain number of layers;
step two: winding grounding leads on the shielding layers at the two ends, and then continuously winding epoxy resin fibers to the required number of layers to obtain an epoxy tube with a shielding layer inside;
step three: putting the wound epoxy tube into an oven for heating and curing;
step four: winding the cured epoxy pipe by a mold and demolding;
step five: machining the demolded epoxy tube;
step six: fixing flanges at two ends of the machined epoxy pipe, and enabling a grounding lead wound on the shielding layer to penetrate through a through hole in the flange;
step seven: vulcanizing the umbrella skirt by adopting an epoxy tube between the two flanges by using a vulcanizing machine;
step eight: after the umbrella skirt is vulcanized, the grounding lead and the grounding terminal are welded inside, and then the grounding terminal is correspondingly installed on flanges at two ends of the epoxy pipe.
Preferably, in the third step, the temperature for heating and curing is 120-140 ℃.
Preferably, in the sixth step, the flange and the end of the epoxy pipe are fixed in a gluing, interference fit or threaded connection mode.
The invention has the beneficial effects that:
and a shielding layer is wound inside the epoxy tube of the hollow composite insulator, so that the hollow composite insulator has a certain voltage-sharing effect, and an electric field at the flange of the hollow composite insulator is shielded. The hollow composite insulator with the shielding layer can also be used as a component with a voltage-sharing function, such as a GIS (gas insulated switchgear) gas insulated outlet bushing, and a metal shielding part is originally required to be arranged on a flange of the hollow composite insulator; the epoxy tube has good electrical and mechanical properties, and the material with higher partial discharge starting voltage is used as the shielding layer, so that the electrical property of the hollow composite insulator can be effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the main reference numerals in the figures have the following meanings:
1. epoxy pipe, 2, shielding layer, 3, flange, 4, ground terminal, 5, full skirt.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1: this embodiment is a hollow composite insulator with shielding layer, including epoxy pipe 1, the both ends body inner loop of epoxy pipe 1 is provided with shielding layer 2, both ends symmetry at epoxy pipe 1 is provided with flange 3, be formed with on the inner wall of flange 3 and supply 1 tip male ladder groove of epoxy pipe, the both ends of epoxy pipe 1 insert respectively correspond the flange 3's of section ladder inslot and with flange 3 fixed connection, all be provided with the through-hole on the flange 3 lateral wall at both ends, the through-hole outside is provided with ground terminal 4 on flange 3, the winding has ground lead on shielding layer 2 in the epoxy pipe 1 both ends body, ground lead extends to the shielding layer 2 outside and alternates the through-hole on the flange 3 that corresponds the end and the ground terminal 4 welding that the through-hole outside set up, still the cover is equipped with full skirt 5 on the epoxy pipe 1 between two flanges 3.
In this embodiment, sealing rings are further disposed at the two ends of the epoxy pipe 1 and the corresponding stepped grooves of the flanges 3.
In this embodiment, the umbrella skirt 5 is made of silicon rubber.
A processing method of a hollow composite insulator with a shielding layer comprises the following steps:
the method comprises the following steps: winding epoxy resin fibers on a winding mould, and winding shielding layers 2 at two ends after winding to a certain number of layers;
step two: winding a grounding lead on the shielding layers 2 at the two ends, and then continuously winding epoxy resin fibers to the required number of layers to obtain an epoxy tube 1 with the shielding layers 2 inside;
step three: putting the wound epoxy tube 1 into an oven for heating and curing;
step four: winding the cured epoxy pipe 1 by a mold and demolding;
step five: machining the demolded epoxy tube 1;
step six: fixing flanges 3 at two ends of the machined epoxy pipe 1, and enabling a grounding lead wound on the shielding layer 2 to penetrate through holes in the flanges 3;
step seven: vulcanizing the umbrella skirt 5 on the epoxy tube 1 between the two flanges 3 by a vulcanizing machine;
step eight: after the umbrella skirt 5 is vulcanized, the grounding lead and the grounding terminal 4 are welded, and then the grounding terminal 4 is correspondingly arranged on the flanges 3 at the two ends of the epoxy pipe 1.
In the third step of this example, the temperature for heating and curing is 120 ℃ to 140 ℃.
In the sixth step, the flange 3 and the end of the epoxy pipe 1 are fixed in a manner of cementing, interference fit or threaded connection.
According to the invention, the shielding layer is wound inside the epoxy tube of the hollow composite insulator, so that the hollow composite insulator has a certain voltage-sharing effect, and the electric field at the flange of the hollow composite insulator is shielded. The hollow composite insulator with the shielding layer can also be used as a component with a voltage-sharing function, such as a GIS (gas insulated switchgear) gas insulated outlet bushing, and a metal shielding part is originally required to be arranged on a flange of the hollow composite insulator; the epoxy tube has good electrical and mechanical properties, and the material with higher partial discharge starting voltage is used as the shielding layer, so that the electrical property of the hollow composite insulator can be effectively improved.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (6)
1. The utility model provides a hollow composite insulator with shielding layer which characterized in that: comprises an epoxy tube (1), shielding layers (2) are arranged in the tube bodies at two ends of the epoxy tube (1) in a surrounding manner, flanges (3) are symmetrically arranged at two ends of the epoxy pipe (1), stepped grooves for inserting the ends of the epoxy pipe (1) are formed on the inner wall of the flange (3), two ends of the epoxy pipe (1) are respectively inserted into the stepped grooves of the flanges (3) of the corresponding sections and are fixedly connected with the flanges (3), through holes are arranged on the side walls of the flanges (3) at the two ends, a grounding terminal (4) is arranged outside the through holes on the flanges (3), the shielding layers (2) in the tube bodies at the two ends of the epoxy tube (1) are wound with grounding leads, the grounding lead extends to the outer side of the shielding layer (2) and penetrates through a through hole on the flange (3) at the corresponding end to be welded with a grounding terminal (4) arranged at the outer side of the through hole, an umbrella skirt (5) is also sleeved on the epoxy tube (1) between the two flanges (3).
2. The hollow composite insulator with the shielding layer as claimed in claim 1, wherein sealing rings are further arranged at the positions where the two ends of the epoxy pipe (1) are abutted to the corresponding stepped grooves of the flange (3).
3. The hollow composite insulator with the shielding layer as claimed in claim 1, wherein the shed (5) is made of silicon rubber.
4. The method for processing the hollow composite insulator with the shielding layer according to claim 1, characterized by comprising the following steps:
the method comprises the following steps: winding epoxy resin fibers on the winding die, winding to a certain number of layers, and then winding shielding layers (2) at two ends;
step two: winding a grounding lead on the shielding layers (2) at the two ends, and then continuously winding epoxy resin fibers to the required number of layers to obtain an epoxy tube (1) with the shielding layers (2) inside;
step three: putting the wound epoxy tube (1) into an oven for heating and curing;
step four: winding the cured epoxy pipe (1) by a mold and demolding;
step five: machining the demoulded epoxy pipe (1);
step six: fixing flanges (3) at two ends of the machined epoxy pipe (1), and enabling a grounding lead wound on the shielding layer (2) to penetrate through a through hole in the flange (3);
step seven: vulcanizing the umbrella skirt (5) by adopting an epoxy tube (1) between the two flanges (3) by a vulcanizing machine;
step eight: after the umbrella skirt (5) is vulcanized, the grounding lead and the grounding terminal (4) are welded, and then the grounding terminal (4) is correspondingly installed on the flanges (3) at the two ends of the epoxy pipe (1).
5. The method for processing the hollow composite insulator with the shielding layer according to claim 4, wherein in the third step, the temperature for heating and curing is 120-140 ℃.
6. The method for processing the hollow composite insulator with the shielding layer according to claim 4, wherein in the sixth step, the flange (3) and the end of the epoxy pipe (1) are fixed in a gluing, interference fit or threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072740.2A CN113851285A (en) | 2021-09-14 | 2021-09-14 | Hollow composite insulator with shielding layer and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072740.2A CN113851285A (en) | 2021-09-14 | 2021-09-14 | Hollow composite insulator with shielding layer and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113851285A true CN113851285A (en) | 2021-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111072740.2A Pending CN113851285A (en) | 2021-09-14 | 2021-09-14 | Hollow composite insulator with shielding layer and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113851285A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201036092Y (en) * | 2007-04-13 | 2008-03-12 | 大连北方互感器有限公司 | Shielding high-voltage insulating tube |
| CN201975182U (en) * | 2011-02-28 | 2011-09-14 | 浙江华高电气有限公司 | Hollow composite insulator with inner composite insulation |
| CN202333669U (en) * | 2011-11-03 | 2012-07-11 | 孙闻峰 | Wall bushing used for switch cabinet |
| CN105514892A (en) * | 2016-01-27 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Wall bushing provided with shielding structure |
| CN206672726U (en) * | 2017-01-12 | 2017-11-24 | 宜兴华源电工设备有限公司 | A kind of preset polytetrafluoroethylene (PTFE) arc protection liner composite hollow insulator |
| CN110752071A (en) * | 2019-11-06 | 2020-02-04 | 高电科技有限公司 | Capacitive bushing |
| CN112117067A (en) * | 2020-10-12 | 2020-12-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Integrated hollow composite insulator with mounting flange insulation structure and manufacturing method |
-
2021
- 2021-09-14 CN CN202111072740.2A patent/CN113851285A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201036092Y (en) * | 2007-04-13 | 2008-03-12 | 大连北方互感器有限公司 | Shielding high-voltage insulating tube |
| CN201975182U (en) * | 2011-02-28 | 2011-09-14 | 浙江华高电气有限公司 | Hollow composite insulator with inner composite insulation |
| CN202333669U (en) * | 2011-11-03 | 2012-07-11 | 孙闻峰 | Wall bushing used for switch cabinet |
| CN105514892A (en) * | 2016-01-27 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Wall bushing provided with shielding structure |
| CN206672726U (en) * | 2017-01-12 | 2017-11-24 | 宜兴华源电工设备有限公司 | A kind of preset polytetrafluoroethylene (PTFE) arc protection liner composite hollow insulator |
| CN110752071A (en) * | 2019-11-06 | 2020-02-04 | 高电科技有限公司 | Capacitive bushing |
| CN112117067A (en) * | 2020-10-12 | 2020-12-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Integrated hollow composite insulator with mounting flange insulation structure and manufacturing method |
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