CN102702965B - Antifouling flashover coating applied to insulators and application method thereof - Google Patents
Antifouling flashover coating applied to insulators and application method thereof Download PDFInfo
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- CN102702965B CN102702965B CN201210151675.7A CN201210151675A CN102702965B CN 102702965 B CN102702965 B CN 102702965B CN 201210151675 A CN201210151675 A CN 201210151675A CN 102702965 B CN102702965 B CN 102702965B
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- Prior art keywords
- insulator
- coating
- insulators
- antifouling
- flush paint
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- 239000012212 insulator Substances 0.000 title claims abstract description 56
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 title abstract description 18
- 239000011248 coating agent Substances 0.000 title abstract description 17
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 239000011231 conductive filler Substances 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
Antifouling flashover coating applied to insulators is prepared by silica rubber and conducting filler silicon carbide with mass percentage of 15%-30%, wherein the molecular weight of the silica rubber is larger than or equal to 5000 and lower than or equal to 20000. The using method of the antifouling flashover coating is that: coating the coating on the lower surface of an insulating member of an insulator, wherein the thickness of the coating is within 0.3-0.4mm. The antifouling flashover coating applied to insulators maintains hydrophobicity, simultaneously can even distribution of the electric field of the insulator, fastens the surface drying process of the insulator under the wet and dirt conditions of the insulators, simultaneously evens the distribution of the electric field of the insulator when affected with damp and improves fouling voltages of insulator strings. Further, the antifouling flashover coating has the advantages of being simple in processing processes, few in using amount of single insulators and low in cost.
Description
Technical field
The present invention relates to a kind of coating, especially relate to a kind of antifouling flush paint be coated on electric transmission line isolator surface.The invention still further relates to the using method of described antifouling flush paint.
Background technology
Along with China's rapid development of economy, scale and the capacity of electrical network are increasing, and extra-high voltage, ultra-high voltage Large Copacity project of transmitting and converting electricity occur in succession, also more and more higher to the reliability requirement of operation of power networks.Pollution flashover accident is a great problem that current electric power netting safe running faces, and pollution flashover not only can cause a large amount of electric loss of energy, the more important thing is and can cause large-area power failure, causes serious social influence.But since transmitting line is born, the just continuous generation along with pollution flashover accident.Therefore, power operation department is also in the antifouling work ability of lifting external insulation equipment that constantly takes various measures to.Along with being on the rise of topsoil, the pollution flashover problem of power transmission and transforming equipment is just causing increasing attention.
On transmitting line, the application of insulator widely, overhead transmission line, power station and the bus of electric substation and the external belt electric conductor of various electric installation must use insulator support, and make it the conductor insulation having potential difference with the earth (or ground connection thing) or other.As toughened glass or pottery etc. and steel pin composition primarily of chapeau de fer, insulating part, and the clamping form with cementing agent gummed or machinery of general insulator.
The coating on the insulating part surface (directly address is insulator surface traditionally) of traditional insulator is PRTV, RTV etc., the insulator of coating above-mentioned coating, there is good hydrophobic nature in operational process, the probability that contaminated insulator pollution flashover occurs can be reduced to a great extent.But there is data to show, also have the accident about the insulator chain generation pollution flashover being coated with traditional antifouling flush paint in recent years.According to research, due to the characteristic of above-mentioned coating itself, after being coated on insulator chain surface, there is deterioration in insulator chain surface field on the contrary, reduces the pollution flashover voltage of insulator chain.Therefore, new coating how just can also the distribution of uniform insulation substring surface field while ensureing traditional antifouling flush paint hydrophobic nature, for insulator dirt-proof, just seem especially important.
Summary of the invention
Technical problem to be solved by this invention, just be to provide a kind of antifouling flush paint being applied to insulator, after being coated in insulator surface, can also the surface electric field distribution of uniform insulation substring while insulator can be made under wet dirty condition to keep good hydrophobic nature, thus improve the pollution flashover voltage of insulator chain, be conducive to the safe operation ensureing power system.
The present invention solves the problems of the technologies described above adopted technical scheme:
Be applied to an antifouling flush paint for insulator, it is characterized in that: the component of described antifouling flush paint is: silicon rubber and massfraction are 15% ~ 30% conductive filler material silicon carbide.
Described Molecular Weight of Silicone Rubber is more than or equal to 5000, is less than or equal to 20000.
The described using method being applied to the antifouling flush paint of insulator: the insulating part lower surface being coated on described insulator, coat-thickness is within the scope of 0.3 ~ 0.4mm.
The present invention has following beneficial effect: the base material of antifouling flush paint is silastic material, and the coating after solidification has hydrophobic nature, and hydrophobic angle is 100 ~ 120 °, adds conductive filler material silicon carbide in paint making process, can not damage the hydrophobic nature of coating; Described antifouling flush paint is coated on the lower surface of insulator dielectric part, when fair weather, insulator surface leakage current maintains comparatively fractional value, close to 0; When insulator is under wet dirty condition during charging operation, the leakage current values of insulator surface is about 1 ~ 20mA, the antifouling flash coating layer of insulator surface generates heat under the effect of leakage current, improves the surface temperature of insulator, accelerates the drying course of insulator surface; In addition, due to the existence of conductive filler material in coating, the effect of uniform insulation substring surface electric field distribution can be played, thus improve the pollution flashover voltage of insulator chain, be conducive to the safe operation ensureing power system.
Accompanying drawing explanation
Accompanying drawing is be coated with antifouling flush paint of the present invention in the sectional view of axisymmetric outer surface of insulator right-hand part.
Embodiment
The antifouling flush paint embodiment being applied to insulator of the present invention, its component is: it is 15% ~ 30% conductive filler material silicon carbide that silicon rubber adds massfraction, and described Molecular Weight of Silicone Rubber is more than or equal to 5000, is less than or equal to 20000.Silicon rubber is a kind of existing mixture, and its making processes is existing open in patent before, and inventive point of the present invention is mainly, in the making processes of above-mentioned silicon rubber, adds a certain amount of conductive filler material silicon carbide.
The using method being applied to the antifouling flush paint of insulator of the present invention: the insulating part lower surface being coated on described insulator, coat-thickness is within 0.3 ~ 0.4mm.
Accompanying drawing is be coated with antifouling flush paint of the present invention in the sectional view of axisymmetric outer surface of insulator right-hand part, the antifouling flush paint can seeing in the present invention is applied to coating method during insulator surface, as shown in the figure, insulator is made up of upper gold utensil 1, insulating part 2 and lower gold utensil 3 and forms, the insulator shown in figure is the sectional view of right half part, insulator left-right parts is along formed symmetrical, described antifouling flush paint 4 is coated on the whole lower surface of insulator dielectric part 2, and coat-thickness is 0.3 ~ 0.4mm.
Present invention achieves antifouling flush paint keep while hydrophobic nature can the electric field distribution of uniform insulation, insulator is made under wet dirty condition, to accelerate insulator surface drying course, simultaneously even insulator in the electric field distribution by the time of tide, improve insulator chain pollution flashover voltage, improve pollution flashover voltage, in addition, the present invention also has consumption few, the cost low feature of complete processing simply, on single insulator.
Claims (2)
1. one kind is applied to the using method of the antifouling flush paint of insulator, it is characterized in that: the component of described antifouling flush paint is: silicon rubber and massfraction are the conductive filler material silicon carbide of 15% ~ 30%, described antifouling flush paint is coated on the insulating part lower surface of described insulator, and coat-thickness is within the scope of 0.3 ~ 0.4mm.
2. the using method being applied to the antifouling flush paint of insulator according to claim 1, is characterized in that: described Molecular Weight of Silicone Rubber is more than or equal to 5000, is less than or equal to 20000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210151675.7A CN102702965B (en) | 2012-05-16 | 2012-05-16 | Antifouling flashover coating applied to insulators and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210151675.7A CN102702965B (en) | 2012-05-16 | 2012-05-16 | Antifouling flashover coating applied to insulators and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102702965A CN102702965A (en) | 2012-10-03 |
| CN102702965B true CN102702965B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210151675.7A Active CN102702965B (en) | 2012-05-16 | 2012-05-16 | Antifouling flashover coating applied to insulators and application method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102702965B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254777B (en) * | 2013-05-29 | 2016-08-10 | 华北电力大学（保定） | It is a kind of that super extra high voltage line is anti-corona subtracts consumption coating |
| CN105623503B (en) * | 2016-03-23 | 2018-04-10 | 华北电力大学 | A kind of silicon rubber hydrophobic coating for insulator and preparation method thereof |
| CN105679469A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Novel column type anti-pollution flashover insulator |
| CN105895280A (en) * | 2016-06-17 | 2016-08-24 | 江苏南瓷绝缘子股份有限公司 | Self-cleaning high-strength rod-shaped porcelain insulator |
| CN108806899A (en) * | 2018-04-25 | 2018-11-13 | 中国电力科学研究院有限公司 | A kind of method and apparatus of enforced insulator anti-fouling flashover performance |
| CN108520810A (en) * | 2018-06-11 | 2018-09-11 | 贵州电网有限责任公司 | A kind of glass insulator and its processing method of the function that falls off with anti-self-destruction |
| CN109298006A (en) * | 2018-08-31 | 2019-02-01 | 全球能源互联网研究院有限公司 | A kind of evaluation method and device of Hydrophobicity of Composite Insulator and migration of hydrophobicity |
| CN110911064B (en) * | 2018-09-14 | 2021-04-13 | 句容市凯特电力电器有限公司 | Insulator |
| CN110415905B (en) * | 2019-06-11 | 2020-12-08 | 江苏南瓷绝缘子股份有限公司 | Clavate porcelain insulator for high-altitude area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002239A (en) * | 2009-07-03 | 2011-04-06 | 信越化学工业株式会社 | Silicone rubber composition for highly heat conductive thermal fixing roll or thermal fixing belt, fixing roll, and fixing belt |
| CN102140310A (en) * | 2010-12-10 | 2011-08-03 | 广东电网公司电力科学研究院 | Anti-icing coating for insulator |
-
2012
- 2012-05-16 CN CN201210151675.7A patent/CN102702965B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002239A (en) * | 2009-07-03 | 2011-04-06 | 信越化学工业株式会社 | Silicone rubber composition for highly heat conductive thermal fixing roll or thermal fixing belt, fixing roll, and fixing belt |
| CN102140310A (en) * | 2010-12-10 | 2011-08-03 | 广东电网公司电力科学研究院 | Anti-icing coating for insulator |
Non-Patent Citations (1)
| Title |
|---|
| 李金辉等.RTV硅橡胶防污闪涂料的研究进展.《化工新型材料》.2012,第40卷(第1期),第25-27页. * |
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| CN102702965A (en) | 2012-10-03 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee before: Graduate School at Shenzhen, Tsinghua University |
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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee after: Tsinghua Shenzhen International Graduate School Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee before: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Patentee before: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. |
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