CN216362069U - Composite insulator with hard sheath embedded in sections - Google Patents
Composite insulator with hard sheath embedded in sections Download PDFInfo
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- CN216362069U CN216362069U CN202121584185.7U CN202121584185U CN216362069U CN 216362069 U CN216362069 U CN 216362069U CN 202121584185 U CN202121584185 U CN 202121584185U CN 216362069 U CN216362069 U CN 216362069U
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- Prior art keywords
- sheath
- composite insulator
- silicon rubber
- core rod
- hard
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- 239000012212 insulator Substances 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009422 external insulation Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical compound O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
A segmented embedded hard sheath composite insulator, comprising: the composite insulator comprises a hard sheath, a silicon rubber shed and a core rod, wherein the core rod, the silicon rubber sheath and the silicon rubber shed are sequentially arranged from inside to outside, and at least one section of hard sheath is embedded between the core rod and the silicon rubber sheath; the core rod is arranged inside the composite insulator; the silicon rubber sheath is arranged on the outer sides of the core rod and the hard sheath; the silicon rubber umbrella skirt is arranged on the outer side of the silicon rubber sheath. The utility model adopts a form of embedding the hard sheath in sections, and the silicon rubber sheath and the umbrella skirt are matched, so that the requirements of the composite insulator on hydrophobicity and pollution flashover resistance are met, meanwhile, the moisture is prevented from invading the core rod at the position where the fault easily occurs, the problems of heating, decay, brittle failure and the like of the core rod of the composite insulator are reduced, and the running performance of the composite insulator is improved. The utility model has two types of embedded hard sheaths, and the composite insulator can adopt different types of embedded hard sheaths according to the use environment.
Description
Technical Field
The utility model belongs to the technical field of insulating equipment, and particularly relates to a composite insulator with a hard sheath embedded in a segmented manner.
Background
With the wide use of the composite insulator, the composite insulator on the power transmission line often generates heat, and particularly the high-voltage end of the composite insulator generates heat most seriously. Heating of the composite insulator can be developed into brittle and rotten insulators, so that severe accidents such as brittle fracture and the like can occur under severe conditions, and the safe operation of a power transmission line is influenced. At present, the commonly adopted measure aiming at the heating problem of the composite insulator is replacement and lacks of preventive measures. According to the prior researches, the composite insulator heating problem is related to partial discharge, moisture invasion, acid corrosion, heat effect and the like, and the moisture invasion is an important factor for causing heating.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model aims to provide a composite insulator with a hard sheath embedded in a segmented manner.
The utility model adopts the following technical scheme: a segmented embedded hard sheath composite insulator, comprising: the composite insulator comprises a hard sheath, a silicon rubber shed and a core rod, wherein the core rod, the silicon rubber sheath and the silicon rubber shed are sequentially arranged from inside to outside, and at least one section of hard sheath is embedded between the core rod and the silicon rubber sheath; the core rod is arranged inside the composite insulator; the silicon rubber sheath is arranged on the outer sides of the core rod and the hard sheath; the silicon rubber umbrella skirt is arranged on the outer side of the silicon rubber sheath.
Preferably, a section of hard sheath is embedded between the composite insulator high-voltage end side core rod and the silicon rubber sheath.
Preferably, two sections of hard sheaths are embedded between the high-voltage end side core rod and the low-voltage end side core rod of the composite insulator and the silicon rubber sheath in a segmented manner.
Preferably, the hardness of the hard jacket is greater than the hardness of the silicone rubber jacket.
Preferably, the composite insulator further comprises hardware.
Preferably, the hardware is disposed at both ends of the core rod.
Compared with the prior art, the utility model has the advantages and beneficial effects that:
1. the utility model adopts a form of embedding the hard sheath in sections, and the silicon rubber sheath and the umbrella skirt are matched, so that the requirements of the composite insulator on hydrophobicity and pollution flashover resistance are met, meanwhile, the moisture is prevented from invading the core rod at the position where the fault easily occurs, the problems of heating, decay, brittle failure and the like of the core rod of the composite insulator are reduced, and the running performance of the composite insulator is improved.
2. The utility model has two types of embedded hard sheaths, and the composite insulator can adopt different types of embedded hard sheaths according to the use environment.
Drawings
FIG. 1 is a schematic structural view of a composite insulator with hard sheath embedded in sections according to the present invention;
fig. 2 is a schematic view of one end embedding of the segmented embedded hard sheath composite insulator of the utility model.
In the figure, the position of the upper end of the main shaft,
1-hard sheath;
2-a silicone rubber sheath;
3-silicon rubber umbrella skirt;
4-core rod;
5-hardware fitting.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
The utility model provides a composite insulator with a hard sheath embedded in a segmented manner.
In an exemplary embodiment of the utility model, a shed structure with two sections of hard sheaths 1 embedded in two sections of the high-voltage end and the low-voltage end of the composite insulator in sections is adopted.
As shown in fig. 1, a segment-embedded hard composite insulator of the present invention mainly includes: the device comprises a hard sheath 1, a silicon rubber sheath 2, a silicon rubber shed 3, a core rod 4 and hardware fittings 5. The core rod 4, the hard sheath 1, the silicon rubber sheath 2 and the silicon rubber shed 3 are sequentially arranged at two ends of the composite insulator from inside to outside; the middle part is respectively provided with a core rod 4, a silicon rubber sheath 2 and a silicon rubber umbrella skirt 3 from inside to outside.
The hard sheaths 1 are embedded into the outer sides of two ends of the core rod 4 and wrap the core rod 4, and the hard sheaths 1 are arranged between the core rod 4 and the silicon rubber sheaths 2.
In this embodiment, the hard sheath 1 has better water blocking performance than the silicone rubber sheath 2, and can prevent moisture from invading the core rod at the high-low voltage end of the composite insulator, thereby avoiding the problem of heating caused by aging of the core rod under moisture.
In a preferred but non-limiting embodiment, the hard sheath 1 uses alicyclic epoxy resin or polyolefin as a matrix, and is supplemented with fillers such as curing agent, flame retardant, fluorine compound, silanized coupling filler and the like and auxiliaries (supplemented with methylhexahydrophthalic anhydride curing agent, aluminum trihydrate fine powder flame retardant, silanized coupling filler, accelerator, fluorine compound auxiliaries and the like), so that the composite insulator has the characteristics of high hardness, impact resistance, electric arc resistance, good water resistance and the like, can prevent moisture from invading the composite insulator high-low pressure end core rod, and can reduce the problem of aging and heat generation of the core rod under moisture.
The silicon rubber sheath 2 and the silicon rubber umbrella skirt 3 are arranged on the outer sides of the hard sheath 1 and the core rod 4, and the silicon rubber sheath 2 and the silicon rubber umbrella skirt 3 are both made of silicon rubber and other materials and have the characteristics of strong hydrophobicity, pollution flashover resistance, electric erosion resistance and the like.
In this embodiment, the silicone rubber sheath 2 and the silicone rubber shed 3 have more excellent water repellency and anti-pollution flashover performance than the hard sheath 1, and can maintain sufficiently high external insulation performance under the conditions of dirt, rain water, and the like.
In a preferable but non-limiting embodiment, the silicon rubber sheath 2 and the silicon rubber shed 3 are assisted by the hard sheath 1, so that the requirements of high-voltage end and low-voltage end water resistance are met while the outer insulation performance is met at two ends of the composite insulator.
The core rod 4 is arranged in the composite insulator, the hard sheath 1, the silicon rubber sheath 2 and the silicon rubber shed 3 are wrapped outside the core rod, and the core rod 4 is configured as a bearing part of the mechanical load of the composite insulator and is also a main part of the internal insulation.
In this embodiment, the core rod 4 is made of glass fiber, epoxy resin, or the like, and has excellent mechanical strength, insulating properties, and long-term stability.
The hardware fittings 5 are arranged at two ends of the core rod 4, are made of metal materials and have the functions of connection and support.
In another exemplary embodiment of the utility model, a shed structure with a section of hard sheath 1 embedded between the high-pressure end core rod 4 and the silicon rubber sheath 2 is adopted.
As shown in fig. 2, a hard sheath 1 is embedded in the high-voltage end of the composite insulator, wraps the high-voltage end of the core rod 4, and is arranged between the core rod 4 and the silicon rubber sheath 2, and the low-voltage end of the composite insulator is not embedded in the hard sheath 1, so that the water-blocking performance of the high-voltage end of the composite insulator can be met; meanwhile, the silicon rubber umbrella skirt 3 is assisted by the hard sheath 2 to meet the external insulation performance, and the silicon rubber sheath 2 and the silicon rubber umbrella skirt 3 are wrapped outside the low-pressure end core rod 4 to meet the external insulation performance.
Compared with the prior art, the utility model has the advantages and beneficial effects that:
1. the utility model adopts a form of embedding the hard sheath in sections, and the silicon rubber sheath and the umbrella skirt are matched, so that the requirements of the composite insulator on hydrophobicity and pollution flashover resistance are met, meanwhile, the moisture is prevented from invading the core rod at the position where the fault easily occurs, the problems of heating, decay, brittle failure and the like of the core rod of the composite insulator are reduced, and the running performance of the composite insulator is improved.
2. The utility model has two types of embedded hard sheaths, and the insulators of different types of embedded hard sheaths can be adopted according to the use environment.
The applicant has described and illustrated embodiments of the present invention in detail with reference to the drawings attached hereto, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (6)
1. A segmented embedded hard sheath composite insulator, comprising: stereoplasm sheath (1), silicon rubber sheath (2), silicon rubber full skirt (3) and plug (4), its characterized in that:
the composite insulator comprises a core rod (4), a silicon rubber sheath (2) and a silicon rubber umbrella skirt (3) from inside to outside in sequence,
at least one section of hard sheath (1) is embedded between the core rod (4) and the silicon rubber sheath (2);
the core rod (4) is arranged inside the composite insulator;
the silicon rubber sheath (2) is arranged on the outer sides of the core rod (4) and the hard sheath (1);
the silicon rubber umbrella skirt (3) is arranged on the outer side of the silicon rubber sheath (2).
2. The segmented embedded hard sheath composite insulator according to claim 1, wherein:
a section of hard sheath (1) is embedded between the composite insulator high-voltage end side core rod (4) and the silicon rubber sheath (2).
3. The composite insulator with the hard sheath embedded in the segment as claimed in claim 1, wherein:
two sections of hard sheaths (1) are embedded between the high-voltage end side core rod (4) and the low-voltage end side core rod (4) of the composite insulator and the silicon rubber sheaths (2) in a segmented manner.
4. The segmented embedded hard sheath composite insulator according to claim 1, wherein:
the hardness of the hard sheath (1) is greater than that of the silicon rubber sheath (2).
5. The segmented embedded hard sheath composite insulator according to claim 1, wherein:
the composite insulator further comprises a hardware fitting (5).
6. The segmented embedded hard sheath composite insulator according to claim 5, wherein:
the hardware fittings (5) are arranged at two ends of the core rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584185.7U CN216362069U (en) | 2021-07-12 | 2021-07-12 | Composite insulator with hard sheath embedded in sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584185.7U CN216362069U (en) | 2021-07-12 | 2021-07-12 | Composite insulator with hard sheath embedded in sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216362069U true CN216362069U (en) | 2022-04-22 |
Family
ID=81188442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121584185.7U Active CN216362069U (en) | 2021-07-12 | 2021-07-12 | Composite insulator with hard sheath embedded in sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216362069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115558239A (en) * | 2022-10-08 | 2023-01-03 | 国网河南省电力公司电力科学研究院 | Hard material of insulator, preparation method and composite series insulator |
-
2021
- 2021-07-12 CN CN202121584185.7U patent/CN216362069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115558239A (en) * | 2022-10-08 | 2023-01-03 | 国网河南省电力公司电力科学研究院 | Hard material of insulator, preparation method and composite series insulator |
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