CN103943288A - Novel disc-form suspension type composite insulator and manufacturing method thereof - Google Patents
Novel disc-form suspension type composite insulator and manufacturing method thereof Download PDFInfo
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- CN103943288A CN103943288A CN201310024129.1A CN201310024129A CN103943288A CN 103943288 A CN103943288 A CN 103943288A CN 201310024129 A CN201310024129 A CN 201310024129A CN 103943288 A CN103943288 A CN 103943288A
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Abstract
The invention relates to a novel disc-form suspension type composite insulator and a manufacturing method thereof. The novel disc-form suspension type composite insulator can be used for suspending a lead on a tower of a super ultra high voltage AC-DC power transmission line, has an electrical insulation effect and a mechanical support effect, and is integrated with both excellent mechanical performance of a disc-form suspension type insulator and the excellent electrical performance of a rod-form suspension type composite insulator. The novel disc-form suspension type composite insulator is composed of a disc-form suspension type insulator (1) and a high-temperature sulfidation silicone rubber film (2) attached to the outer insulation surface of the insulator. The manufacturing method is compression molding. The respectively corresponding portions of the high-temperature sulfidation silicone rubber film (2) and the outer surface of the umbrella tray of the insulator (1) mutually coincide and are permanently combined. A common disc-form suspension type porcerlain or glass composite insulator further comprises bonding of the umbrella skirt (3) prepared by a high-temperature sulfidation silicone rubber and local embedding (4) by use of a two-component silicone rubber. The excellent pollution flashover prevention performance can be maintained for more than 20 years, and the demands of electric power operation departments can be satisfied.
Description
Technical field
The present invention relates on the shaft tower of transmission line (especially extra-high voltage alternating current-direct current transmission line), hang wire, play electric insulation and mechanical support effect, have electric property that the excellent mechanical performance of inorganic insulation and organic composite (silicon rubber) insulator are good Novel disk-shape suspended compound insulator (Fig. 1～Fig. 3) and manufacture method thereof concurrently.
Background technology
Along with China is super, extensive construction and the fast development of extra-high voltage alternating current-direct current transmission line, solving electrical network becomes one of important topic because of the pollution flashover threat problem that the aggravation of environmental pollution brings.
It is high that silicon rubber has dielectric strength, has again hydrophobicity and migration of hydrophobicity, is the superior anti-pollution flashover material of power external insulation, is attached to porcelain or the glass surface of cap and pin insulator, can improve significantly the pollution flashover voltage of insulator.This insulator that is attached with silicon rubber being called to disc suspension composite insulator in industry, is to have anti-fouling flashover performance that excellent machinery, electric property and organic composite (silicon rubber) insulator of inorganic insulation is good novel product concurrently.
Existing Composite has following several scheme:
1. apply one deck Silicone Rubber Based Coatings at porcelain or the glass surface of cap and pin insulator, coating layer thickness 0.5-1.5 millimeter, obtains composite insulator after paint solidification.The problem that this scheme exists is: coating contains a large amount of volatile solvents, coating layer thickness is difficult to reach requirement and density is poor, its anti-fouling flashover performance only can maintain about 5 years, every about 5 years, must re-start coating, the workload that this has just strengthened operation power department, causes human and material resources, fund and send electric quantity loss.
2. thereby on the umbrella disk of cap and pin insulator, be set with the bonding synthetic full skirt of being manufactured by silicon rubber and make composite insulator.The bonding operation of this suit is to be generally to carry out on the shaft tower of transmission line, and bonding quality is difficult for ensureing, use after a period of time and easily come unstuck, and this composite insulator is trampled climbing while not allowing line maintenance.
3. the disc suspension composite insulator forming at the upper molding silicone rubber full skirt of porcelain or glass core dish (not being the cap and pin insulator of standard), operation facts have proved that such product reliability is poor, aging (null value) rate is high.And this composite insulator can not be trampled climbing when line maintenance.
Summary of the invention
The object of the invention is: a kind of new manufacture method of adhering to silicon rubber on inorganic cap and pin insulator is provided.That the inventor is called to improving and supplementing of " a kind of composite insulator and manufacture method thereof " (application number is 201110288923.8) patent content in the name of application on September 28th, 2011.
The present invention for the technical scheme that its technical problem of solution adopts is:
First use the high-temperature silicon disulfide rubber film of mould pressing process method at cap and pin insulator (Fig. 4～Fig. 6) external insulation surface forming one deck 1～10mm.The shape of this film and cap and pin insulator profile are coincide and are all wrapped up external insulation surface.
After plain edition cap and pin insulator parcel silicone rubber membrane, more bonding high-temperature silicon disulfide rubber full skirt 3., after solidifying, uses two-component silicone rubber embedding 4. again.
This programme also can be described like this: the present invention is a kind of composite insulator, 2. 1. it be made up of with the lip-deep high-temperature silicon disulfide rubber film of external insulation that is attached to this insulator a cap and pin insulator, 2. with 1. outer surface corresponding position identical, the permanent combination mutually on geomery separately of umbrella disk of said insulator.For plain edition cap and pin insulator also comprise bonding high-temperature silicon disulfide rubber full skirt 3. with silicon rubber embedding 4..
The present invention has following advantage:
1. the external insulator of high-temperature silicon disulfide rubber and cap and pin insulator surface forms reliably permanent combination;
2. there is excellent mechanical performance and the good electric property of organic composite insulator of inorganic insulation;
3. packing of product transport, installation and operation maintenance are all very convenient, can trample climbing.
Brief description of the drawings
Fig. 1 plain edition disc suspension composite insulator product structure figure;
The two umbellate form disc suspension composite ceramic insulator product structure figure of Fig. 2;
Fig. 3 tri-umbellate form disc suspension composite ceramic insulator product structure figure;
Fig. 4 plain edition disk-shaped suspension porcelain or glass insulator product figure;
The two umbellate form suspension disc insulator product figure of Fig. 5;
Fig. 6 tri-umbellate form suspension disc insulator product figure;
Fig. 7 plain edition insulator compression molding die schematic diagram
The two umbellate form insulator compression molding die schematic diagrames of Fig. 8
Fig. 9 tri-umbellate form insulator compression molding die schematic diagrames
Embodiment
Manufacture method of the present invention:
Because 1. cap and pin insulator is the complete conventional products of sizing, determine design and the processing that can carry out molding die after its model specification.Fig. 8～Fig. 9 is shown in respectively by its mould.Select organic combined insulated material---high-temperature silicon disulfide rubber, on vulcanizing press, produce high-temperature silicon disulfide rubber film by corresponding mould processes in accordance with regulations.
Cap and pin insulator external insulation surface is 1. carried out after clean, then do physics (or chemistry) activation processing, make its formation there is the activating surface of bonds well characteristic; External insulation surface uniform in activated processing applies the coupling agent through optimizing screening.
High-temperature silicon disulfide rubber raw material ftractures into the sheet of 2～10mm thickness on twin-screw extruder, then according to the needs of corresponding product, is cut into internal diameter 20～100mm, the annular of external diameter 250～400mm or fan-shaped tablet.
Above-mentioned tablet is wrapped in to the external insulation surface of the cap and pin insulator of handling well, and then together puts on the inherent vulcanizing press of corresponding mould and carry out compression molding.Its clamping pressure 2～20MPa, 80～180 DEG C of curing temperatures, cure time 5～30min.
High-temperature silicon disulfide rubber film forms whole parcels on the external insulation surface of cap and pin insulator and each position shape matches, and its thicknesses of layers is 1～10mm.
Plain edition cap and pin insulator is after carrying out silicone rubber membrane, clean, surface, activation processing corresponding adhesive portion position, process the corresponding position of the high-temperature silicon disulfide rubber full skirt of machine-shaping in advance simultaneously, then with special high-strength silicone rubber binding agent carry out bonding, solidify, finally carry out local embedding with two-component silicone rubber again to form complete product (Fig. 1).
Claims (5)
1. the present invention is a kind of Novel disk-shape suspended compound insulator (seeing Fig. 1～Fig. 3) and manufacture method thereof, it is characterized in that: described manufacture method is to adhere to high-temperature silicon disulfide rubber film on the external insulation surface of the cap and pin insulator of a standard, and then the high-temperature silicon disulfide rubber full skirt of bonding forming in advance.
2. the suspension disc insulator of standard as claimed in claim 1, is characterized in that: plain edition disk-shaped suspension porcelain or glass insulator, two umbellate form suspension disc insulator and three umbellate form suspension disc insulators (seeing Fig. 4～6).
3. as claimed in claim 1 adhering to, it is characterized in that: high-temperature silicon disulfide rubber compression molding, silicon rubber is begun to pratise into 2～10mm thickness and is cut into internal diameter 20～100mm, external diameter 250～400mm annular or fan-shaped tablet, this tablet is wrapped in to the cap and pin insulator external insulation surface through clean and activation processing, on vulcanizing press, carry out compression molding with special mould (Fig. 7～Fig. 9), make silicon rubber and suspension disc insulator external insulation surface form permanent combination.Its clamping pressure 2～20MPa, 80～180 DEG C of curing temperatures, cure time 5～30 minutes.
4. high-temperature silicon disulfide rubber film as claimed in claim 1, is characterized in that: all wrap up cap and pin insulator external insulation surface and match with exterior insulator shape, thickness is 1～10mm.
5. as claimed in claim 1 bonding, it is characterized in that: first silicon rubber full skirt and the corresponding position that adheres to the insulator of silicone rubber membrane are carried out to surface cleaning, activation processing, then with special high-strength silicone rubber binding agent carry out bonding, solidify and make it to form solid and reliable connection, then carry out local embedding with two-component silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024129.1A CN103943288A (en) | 2013-01-23 | 2013-01-23 | Novel disc-form suspension type composite insulator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024129.1A CN103943288A (en) | 2013-01-23 | 2013-01-23 | Novel disc-form suspension type composite insulator and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103943288A true CN103943288A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310024129.1A Pending CN103943288A (en) | 2013-01-23 | 2013-01-23 | Novel disc-form suspension type composite insulator and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134500A (en) * | 2014-08-20 | 2014-11-05 | 国家电网公司 | Coating method of RTV anti-pollution flashover coating of insulator |
| CN105355340A (en) * | 2015-10-23 | 2016-02-24 | 南京电气（集团）有限责任公司 | Glass composite insulator and manufacturing method therefor |
| CN108109784A (en) * | 2017-12-15 | 2018-06-01 | 萍乡市新田电瓷制造有限公司 | A kind of special anti-pollution disk-shape suspension porcelain insulator of high-tension line and its assemble method |
-
2013
- 2013-01-23 CN CN201310024129.1A patent/CN103943288A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134500A (en) * | 2014-08-20 | 2014-11-05 | 国家电网公司 | Coating method of RTV anti-pollution flashover coating of insulator |
| CN105355340A (en) * | 2015-10-23 | 2016-02-24 | 南京电气（集团）有限责任公司 | Glass composite insulator and manufacturing method therefor |
| CN108109784A (en) * | 2017-12-15 | 2018-06-01 | 萍乡市新田电瓷制造有限公司 | A kind of special anti-pollution disk-shape suspension porcelain insulator of high-tension line and its assemble method |
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Application publication date: 20140723 |