CN201444420U - Epoxy glass steel cylinder for extra-high voltage hollow composite insulator - Google Patents
Epoxy glass steel cylinder for extra-high voltage hollow composite insulator Download PDFInfo
- Publication number
- CN201444420U CN201444420U CN2009200248514U CN200920024851U CN201444420U CN 201444420 U CN201444420 U CN 201444420U CN 2009200248514 U CN2009200248514 U CN 2009200248514U CN 200920024851 U CN200920024851 U CN 200920024851U CN 201444420 U CN201444420 U CN 201444420U
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- cylindrical shell
- high voltage
- glass fiber
- composite insulator
- hollow composite
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Abstract
The utility model discloses an epoxy glass steel cylinder for an extra-high voltage hollow composite insulator, which comprises a cylinder body and an annular epoxy resin fixing groove arranged on the external circumference of both ends of the cylinder body and on a coaxial line with the cylinder body. The epoxy glass cylinder can suffer the isolating strength of plus or minus 2800 kV lighting impulse withstand voltage, 1800kV chopped valve impulse withstand voltage and 1200kV power frequency withstand voltage and can meet the service requirement of a 1000kV extra-high voltage power system, and realizes the single section integral type structure, thus having excellent filth resistance performance and high wet flashover and pollution flashover voltage; the mechanical strength of the steel cylinder is more than 2 times of that of the insulator for a traditional casing pipe; and the advanced sealing technology of the steel cylinder guarantees the leakage rate to be less than 0.5% per year.
Description
Technical field
The utility model relates to a kind of used in composite insulator epoxy glass fiber reinforced plastic cylinder, particularly a kind of epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator.
Background technology
Present ultra high voltage both domestic and external is overlapped effective insulator and is all adopted multi-section type insulator insulation system, and its anti-rain dodges, the non-constant of pollution flashover ability; Mechanical strength is very low; Rate of finished products is also lower;
Also have a few exploitation ultra high voltage to overlap effective composite insulator at present both at home and abroad, but also mainly be to take the multi-section type structure, its anti-rain dodges, the pollution flashover ability is also relatively poor; Globality is not strong, and insulation system does not have integral type good.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of mechanical strength height is provided, can realizes all-in-one-piece epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator.
In order to solve the problems of the technologies described above, the utility model comprises cylindrical shell, on the excircle at the two ends of cylindrical shell with the epoxy resin holddown groove of the annular of cylindrical shell coaxial line.
In order to improve anti-torsional strength, a plurality of epoxy resin holddown grooves on the same end of described cylindrical shell are communicated with by radial slot.
In order to form double-layer seal, improve sealing, to reduce amount of leakage, the outer rim of the end face of described cylindrical shell has the chamfering sealing surface, and the every end of cylindrical shell is positioned at the epoxy resin holddown groove outside and is provided with seal groove with the annular of cylindrical shell coaxial line.
In order to make the mechanical strength height of cylindrical shell, described cylindrical shell is to be formed by the glass fiber coiling, and the coiling angle of glass fiber is 60～68 degree.
For the mechanical strength that makes cylindrical shell is the highest, the coiling angle of described glass fiber is 62 degree.
The beneficial effects of the utility model are:
(1) the utility model can bear ± dielectric strength that 2800kV lightning impulse withstand voltage, 1800kV are cut wave impact withstand voltage and 1200kV power-frequency withstand voltage, can satisfy 1000kV extra-high voltage grid service requirement.
(2) realized the single-unit monolithic construction, so have the dirty performance of good resistant, wet sudden strain of a muscle, pollution flashover voltage height.
(3) mechanical strength reaches more than 2 times of insulator of traditional sleeve.
(4) Xian Jin sealing technology has guaranteed that year leakage rate is less than 0.5%.
Description of drawings
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the A-A cutaway view of Fig. 1;
Among the figure: 1, chamfering sealing surface, 2, seal groove, 3, the epoxy resin holddown groove, 4, radial slot, 5, cylindrical shell.
Embodiment
A kind of specific embodiment as depicted in figs. 1 and 2, it comprises cylindrical shell 5, and cylindrical shell 5 is that the coiling by glass fiber forms, and the coiling angle of glass fiber is 60 degree～68 degree, preferably 62 degree.Cylindrical shell 5 internal diameter sizes are 1000mm, and total length is 11000mm; End, two ends 500mm part outside dimension is 1056mm, and the mid portion outside dimension is 1046mm.In the end 500mm of cylindrical shell 5 two ends, design the epoxy resin holddown groove 3 of the annular of 5～10 equidistant roads and cylindrical shell 5 coaxial lines, the cross section of epoxy resin holddown groove 3 is a rectangle, epoxy resin holddown groove 3 logical four radial slots 4 of same end are communicated with on the cylindrical shell 5, be provided with radial slot 4 one every 90 degree, radial slot 4 width are 18mm.Cylindrical shell 5 two ends end 500mm needs to use plasma process to handle in (comprising in the epoxy resin holddown groove 3); Thickness is 28mm in the end 500mm of cylindrical shell 5 two ends, and mid portion thickness all is 23mm, is processed as 45 degree in two parts junction transition angle; Cylindrical shell 5 has together the seal groove 2 with the annular of cylindrical shell 5 coaxial lines apart from end 20mm place, the end outer rim of cylindrical shell 5 has 30 degree chamfering sealing surfaces 1.Seal groove 2 and chamfering sealing surface 1 form double-layer sealing structure.
The production method of this steel cylinder is as follows:
It is 1000mm that design processes internal diameter, length overall 15000mm, and material is the liner mould of A3 steel surface plating Lopa Nationality, but this both mold ends design has assembled shaft to rotate to be connected the electric-motor drive band.Dispose a table glass silk thread supply device again, this device not only can also realize poured with epoxy resin for line by rotation synchronously, it will be along mould shaft at the uniform velocity advancing during production, regulate the rotating speed of mould and glass fiber thread supply device by different threephase asynchronouses, angle control when realizing the glass fiber helically coiling by both speed differences utilizes infrared lamp to carry out drying, curing immediately in the winding process.The utility model design is that the coiling angle of regulating and controlling glass fiber is 60 degree～68 degree, leaves certain allowance during the production coiling, finish coiling after, on super-huge processing vehicle window, finish above-mentioned end construction design processing.
Claims (5)
1. epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator is characterized in that: comprise cylindrical shell (5), on the excircle at the two ends of cylindrical shell (5) with the epoxy resin holddown groove (3) of the annular of cylindrical shell (5) coaxial line.
2. epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator according to claim 1 is characterized in that: a plurality of epoxy resin holddown grooves (3) on the same end of described cylindrical shell (5) are communicated with by radial slot (4).
3. epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator according to claim 1, it is characterized in that: the outer rim of the end face of described cylindrical shell (5) has chamfering sealing surface (1), and the every end of cylindrical shell (5) is positioned at epoxy resin holddown groove (3) outside and is provided with seal groove (2) with the annular of cylindrical shell (5) coaxial line.
4. according to claim 1 or 2 or 3 described epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator, it is characterized in that: described cylindrical shell (5) is to be formed by the glass fiber coiling, and the coiling angle of glass fiber is 60～68 degree.
5. epoxy glass fiber reinforced plastic cylinder for ultra-high voltage hollow composite insulator according to claim 4 is characterized in that: the coiling angle of described glass fiber is 62 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200248514U CN201444420U (en) | 2009-05-12 | 2009-05-12 | Epoxy glass steel cylinder for extra-high voltage hollow composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200248514U CN201444420U (en) | 2009-05-12 | 2009-05-12 | Epoxy glass steel cylinder for extra-high voltage hollow composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444420U true CN201444420U (en) | 2010-04-28 |
Family
ID=42549101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200248514U Expired - Fee Related CN201444420U (en) | 2009-05-12 | 2009-05-12 | Epoxy glass steel cylinder for extra-high voltage hollow composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444420U (en) |
-
2009
- 2009-05-12 CN CN2009200248514U patent/CN201444420U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20170512 |