CN214956218U - High-performance post composite insulator for extra-high voltage equipment - Google Patents
High-performance post composite insulator for extra-high voltage equipment Download PDFInfo
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- CN214956218U CN214956218U CN202121729541.XU CN202121729541U CN214956218U CN 214956218 U CN214956218 U CN 214956218U CN 202121729541 U CN202121729541 U CN 202121729541U CN 214956218 U CN214956218 U CN 214956218U
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- high voltage
- voltage equipment
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- 239000012212 insulator Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000002788 crimping Methods 0.000 claims abstract description 8
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000009422 external insulation Methods 0.000 abstract description 8
- 230000003373 anti-fouling effect Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012938 design process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000004593 Epoxy Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses a high performance is post composite insulator for extra-high voltage equipment, including last flange, external insulation chute boot, lower flange and adopt glass fiber to soak epoxy and draw out fashioned plug, go up the mode assembly that flange and lower flange adopted the crimping at the both ends of plug, external insulation chute boot injection moulding bonds on the plug. The utility model discloses a high performance is post composite insulator for extra-high voltage equipment: the core rod adopts whole pull rod, and outer insulating chute boot adopts novel antifouling design, and both ends flange adopts the crimping mode assembly. Due to the innovations of the design and manufacturing process technology, the insulator has higher and reliable mechanical performance and electrical performance, the external insulation has excellent antifouling performance, and the service life of the insulator is greatly prolonged.
Description
The technical field is as follows:
the utility model relates to a high performance is post composite insulator for extra-high voltage equipment.
Background art:
with the construction of extra-high voltage AC/DC lines in China, post insulators are applied to electric power systems more and more, and the problems of flashover of external insulation, unstable mechanical performance caused by an immature flange assembly process and the like are more and more prominent due to the incomplete design and manufacturing technology of conventional post insulators, so that serious potential safety hazards are brought to the safe operation of electric power system equipment.
The outer umbrella type of the conventional traditional post composite insulator mostly adopts the mode that the tilt angle is too small (most manufacturers are less than 10 degrees), the extension difference of large and small umbrellas is too small (most manufacturers are less than 20mm) and the spacing between the umbrellas is too small (most manufacturers are less than or equal to 72mm), so that the outer insulation umbrella type operates, and the outer insulation flashover is easy to occur in heavily polluted areas or areas with high humidity.
The core rod of the conventional traditional post composite insulator is mostly formed by winding with a common winding machine, and has low elastic modulus (generally below 15 GPa) and poor wettability, so that the manufactured core rod has poor electromechanical properties, particularly poor bending resistance of the insulator, and the phenomenon of inner interface breakdown is easy to occur after long-time operation.
The upper flange and the lower flange of the conventional traditional post composite insulator are mostly assembled in a gap cementing mode, the assembly mode has large artificial influence factor, and the product performance is unstable.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide a high performance is post composite insulator for extra-high voltage equipment.
The utility model discloses the technical scheme who adopts has:
the post composite insulator for the high-performance extra-high voltage equipment comprises an upper flange, an outer insulation umbrella sleeve, a lower flange and a core rod which is formed by drawing and pulling glass fiber soaked epoxy resin, wherein the upper flange and the lower flange are assembled at two ends of the core rod in a crimping mode, and the outer insulation umbrella sleeve is bonded on the core rod in an injection molding mode.
Furthermore, the outer wall of the outer insulating umbrella cover is provided with a plurality of first umbrella skirts and second umbrella skirts which are arranged in a clearance mode, the first umbrella skirts and the second umbrella skirts are arranged in a staggered mode, and the height of the first umbrella skirts is larger than that of the second umbrella skirts.
Furthermore, the longitudinal sections of the first umbrella skirt and the second umbrella skirt are both conical bodies, the angle b of the outer cone angles of the first umbrella skirt and the second umbrella skirt is more than or equal to 10.5 degrees, and the angle a of the inner cone angles of the first umbrella skirt and the second umbrella skirt is more than or equal to 6.5 degrees.
Further, the distance C between two adjacent first sheds is more than or equal to 72 mm.
Furthermore, the height difference between the first umbrella skirt and the second umbrella skirt is more than or equal to 20 mm.
The utility model discloses following beneficial effect has:
the utility model discloses a high performance is post composite insulator for extra-high voltage equipment: the core rod adopts whole pull rod, and outer insulating chute boot adopts novel antifouling design, and both ends flange adopts the crimping mode assembly. Due to the innovations of the design and manufacturing process technology, the insulator has higher and reliable mechanical performance and electrical performance, the external insulation has excellent antifouling performance, and the service life of the insulator is greatly prolonged.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the external and internal insulation umbrella cover of the utility model.
Fig. 3 is a schematic view of a flange crimping assembly structure.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the utility model relates to a high performance composite post insulator for extra-high voltage equipment, which comprises an upper flange 1, a core rod 2, an external insulation umbrella cover 3 and a lower flange 4. The utility model provides a 2 core rods adopt glass fiber to soak epoxy resin and draw and pull out the shaping, go up flange 1 and lower flange 4 and adopt the mode assembly of crimping at 2 core rod's both ends, and 3 injection moulding of outer insulation chute boot bond on 2 core rods.
The core rod 2 is integrally drawn and formed by adopting glass fiber soaked epoxy resin, the core rod formed by the process has better mechanical property and compact structure, and the weight is about 1/7 of the same-grade porcelain and post insulator.
The upper flange 1 and the lower flange 4 are assembled on the core rod in a compression joint mode, so that the influence of human factors of a clearance fit assembly method is greatly eliminated, the product performance is ensured to be stable, and the strength and the rigidity are obviously improved (K in figure 3 is a compression joint position).
The outer wall of the outer insulating umbrella sleeve 3 is provided with a plurality of first umbrella skirts 31 and second umbrella skirts 32 which are arranged in a clearance mode, the first umbrella skirts 31 and the second umbrella skirts 32 are arranged in a staggered mode, and the height of the first umbrella skirts 31 is larger than that of the second umbrella skirts 32.
The longitudinal sections of the first shed 31 and the second shed 32 are both conical bodies, the angle b of the outer cone angles of the first shed 31 and the second shed 32 is more than or equal to 10.5 degrees, and the angle a of the inner cone angles of the first shed 31 and the second shed 32 is more than or equal to 6.5 degrees.
The distance C between two adjacent first sheds 31 is more than or equal to 72 mm. The height difference P1-P2 between the first shed 31 and the second shed 32 is more than or equal to 20 mm.
The outer insulation umbrella cover 3 designed by the parameters of the utility model is adopted to make the post insulator have more excellent antifouling performance.
The utility model discloses a high performance is post composite insulator for extra-high voltage equipment: the core rod adopts whole pull rod, and outer insulating chute boot adopts novel antifouling design, and both ends flange adopts the crimping mode assembly. Due to the innovations of the design and manufacturing process technology, the insulator has higher and reliable mechanical performance and electrical performance, the external insulation has excellent antifouling performance, and the service life of the insulator is greatly prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a high performance is post composite insulator for extra-high voltage equipment which characterized in that: the core rod comprises an upper flange (1), an outer insulation umbrella cover (3), a lower flange (4) and a core rod (2) which is formed by drawing and pulling glass fiber soaked epoxy resin, wherein the upper flange (1) and the lower flange (4) are assembled at two ends of the core rod (2) in a crimping mode, and the outer insulation umbrella cover (3) is bonded on the core rod (2) in an injection molding mode.
2. The post composite insulator for the high-performance extra-high voltage equipment of claim 1, wherein: the outer wall of the outer insulation umbrella cover (3) is provided with a plurality of first umbrella skirts (31) and second umbrella skirts (32) which are arranged in a clearance mode, the first umbrella skirts (31) and the second umbrella skirts (32) are arranged in a staggered mode, and the height of the first umbrella skirts (31) is larger than that of the second umbrella skirts (32).
3. The post composite insulator for the high-performance extra-high voltage equipment as claimed in claim 2, wherein: the longitudinal sections of the first umbrella skirt (31) and the second umbrella skirt (32) are conical bodies, the angle b of the outer cone angles of the first umbrella skirt (31) and the second umbrella skirt (32) is more than or equal to 10.5 degrees, and the angle a of the inner cone angles of the first umbrella skirt (31) and the second umbrella skirt (32) is more than or equal to 6.5 degrees.
4. The post composite insulator for the high-performance extra-high voltage equipment as claimed in claim 2, wherein: the distance C between two adjacent first sheds (31) is more than or equal to 72 mm.
5. The post composite insulator for the high-performance extra-high voltage equipment as claimed in claim 2, wherein: the height difference between the first umbrella skirt (31) and the second umbrella skirt (32) is more than or equal to 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121729541.XU CN214956218U (en) | 2021-07-28 | 2021-07-28 | High-performance post composite insulator for extra-high voltage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121729541.XU CN214956218U (en) | 2021-07-28 | 2021-07-28 | High-performance post composite insulator for extra-high voltage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214956218U true CN214956218U (en) | 2021-11-30 |
Family
ID=79069986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121729541.XU Active CN214956218U (en) | 2021-07-28 | 2021-07-28 | High-performance post composite insulator for extra-high voltage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214956218U (en) |
-
2021
- 2021-07-28 CN CN202121729541.XU patent/CN214956218U/en active Active
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