CN113628816B - Inhibition method of GIL/GIS metal particles based on functional gradient modification of insulator surface - Google Patents
Inhibition method of GIL/GIS metal particles based on functional gradient modification of insulator surface Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 17
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
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- 229910052734 helium Inorganic materials 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
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- 238000004519 manufacturing process Methods 0.000 description 3
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
- H01B19/04—Treating the surfaces, e.g. applying coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
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Abstract
Description
技术领域technical field
本发明涉及电气工程高压输电领域，具体涉及一种基于绝缘子表层功能梯度改性的GIL/GIS金属微粒启举抑制方法。The invention relates to the field of high-voltage power transmission in electrical engineering, in particular to a GIL/GIS metal particle heave suppression method based on the functional gradient modification of the surface layer of an insulator.
背景技术Background technique
高压直流GIL/GIS长期运行时，普通盆式绝缘子或支柱绝缘子表面电荷积聚极不均匀，对附近的金属微粒产生向绝缘子表面运动的电场轴向梯度力，故绝缘子附近的金属微粒易向绝缘子表面运动，最终引发气隙击穿、局部放电、沿面闪络等绝缘故障，严重劣化高压直流GIL/GIS的绝缘性能。During the long-term operation of high-voltage direct current GIL/GIS, the surface charge accumulation of ordinary pot insulators or post insulators is extremely uneven, and an axial gradient force of the electric field is generated on the nearby metal particles to move towards the surface of the insulator, so the metal particles near the insulator tend to move toward the surface of the insulator. Movement will eventually cause insulation faults such as air gap breakdown, partial discharge, and flashover along the surface, seriously deteriorating the insulation performance of high-voltage DC GIL/GIS.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足，提供一种基于环氧树脂绝缘子表层功能梯度改性的GIL/GIS金属微粒启举抑制方法，在高压直流GIL/GIS中金属微粒运动治理方面提供一种新的治理思路。The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a GIL/GIS metal particle activation suppression method based on the functional gradient modification of the surface layer of epoxy resin insulators, and to provide a method for the movement of metal particles in high-voltage direct current GIL/GIS. A new way of governance.
为了实现上述目的，本发明所用的技术方案如下:一种基于绝缘子表层功能梯度改性的GIL/GIS金属微粒启举抑制方法，包括下列步骤：In order to achieve the above object, the technical scheme used in the present invention is as follows: a kind of GIL/GIS metal particle initiation suppression method based on insulator surface layer functional gradient modification, comprises the following steps:
(1)基于高压直流(包括±160kV、±200kV、±320kV、±550kV、±800kV)GIL/GIS运行工况下环氧树脂绝缘子(包括盆式绝缘子/支柱绝缘子)表面电势分布，将环氧树脂绝缘子表面划分为三个区域。环氧树脂绝缘子安装前，将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘住。将绝缘子放置在反应釜内，反应釜内充入体积比为1：10～1：1的氟气与惰性气体的混合气体，反应气体温度10～50℃、气体压力0.01～0.1Mpa，对环氧树脂绝缘子进行15-30min的表层结构改性处理，改性处理后区域一的表面电导率为5.02×10-14S-5.05×10- 14S。(1) Based on the surface potential distribution of epoxy resin insulators (including pot insulators/pillar insulators) under high voltage DC (including ±160kV, ±200kV, ±320kV, ±550kV, ±800kV) GIL/GIS operating conditions, the epoxy The surface of the resin insulator is divided into three regions. Before installing the epoxy resin insulator, stick area 2 and area 3 with polytetrafluoroethylene anti-corrosion tape. Place the insulator in the reactor, and fill the reactor with a mixed gas of fluorine gas and inert gas with a volume ratio of 1:10 to 1:1, the reaction gas temperature is 10-50°C, the gas pressure is 0.01-0.1Mpa, The oxygen resin insulator undergoes surface structure modification treatment for 15-30 minutes, and the surface conductivity of
(2)去除区域三的聚四氟乙烯抗腐蚀胶带，将绝缘子放入反应釜内进行15-30min的表层结构氟化处理，获得表层功能梯度改性的环氧树脂绝缘子。表层功能梯度改性的环氧树脂绝缘子表面电导率呈梯度分布，其中，区域一表面电导率：6.50×10-13S-6.55×10- 13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S。(2) Remove the polytetrafluoroethylene anti-corrosion tape in area 3, put the insulator into the reaction kettle for 15-30min surface structure fluorination treatment, and obtain the epoxy resin insulator with surface functional gradient modification. The surface conductivity of the epoxy resin insulator modified by the surface functional gradient is distributed in a gradient, among which, the surface conductivity of area 1: 6.50×10 -13 S-6.55×10 - 13 S, the surface conductivity of area 2: 5.80×10 -15 S-5.85×10 -15 S, area three surface conductivity: 5.02×10 -14 S-5.05×10 -14 S.
(3)对装有表层功能梯度改性环氧树脂绝缘子的高压直流GIL/GIS系统进行1～10小时额定直流电压预压，预压结束后测试距离环氧树脂绝缘子凸面不同位置处的金属微粒(包括球形金属微粒、线性金属微粒、金属粉尘)启举电压。(3) Preload the high-voltage DC GIL/GIS system equipped with surface functional gradient modified epoxy resin insulators for 1 to 10 hours with rated DC voltage. After the preloading, test the metal particles at different positions from the convex surface of the epoxy resin insulator (Including spherical metal particles, linear metal particles, metal dust) boost voltage.
进一步地，高压直流GIL/GIS涉及的电压等级包括±160kV、±200kV、±320kV、±550kV、±800kV。Further, the voltage levels involved in the high-voltage direct current GIL/GIS include ±160kV, ±200kV, ±320kV, ±550kV, and ±800kV.
进一步地，环氧树脂绝缘子包括盆式绝缘子、支柱绝缘子。Further, epoxy resin insulators include pot insulators and post insulators.
进一步地，金属微粒包括球形金属微粒、线性金属微粒、金属粉末。Further, metal particles include spherical metal particles, linear metal particles, and metal powder.
与现有技术相比，本发明的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:
本发明通过对环氧树脂绝缘子表层功能梯度改性，优化运行工况下绝缘子的电场分布，削弱金属微粒产生向绝缘子表面运动的电场轴向梯度力，进而实现对高压直流GIL/GIS中金属微粒运动的抑制。表层功能梯度改性的绝缘子制作工艺流程简单可靠，且不需要改变高压直流GIL/GIS原有的机械结构，便于促进高压直流GIL/GIS的推广运用。The invention optimizes the electric field distribution of the insulator under operating conditions by modifying the functional gradient of the surface layer of the epoxy resin insulator, weakens the axial gradient force of the electric field generated by the metal particles moving to the surface of the insulator, and then realizes the control of the metal particles in the high-voltage DC GIL/GIS Inhibition of movement. The production process of insulators with surface functional gradient modification is simple and reliable, and does not need to change the original mechanical structure of high-voltage direct current GIL/GIS, which facilitates the promotion and application of high-voltage direct current GIL/GIS.
本发明对环氧树脂绝缘子进行表层功能梯度改性处理，根据制作方案，表层功能梯度改性的盆式绝缘子表面电导率呈梯度分布，优化长期运行条件下盆式绝缘子表面电荷分布，减小金属微粒向绝缘薄弱处运动所需的电场轴向梯度力，对距离绝缘子不同位置处的金属微粒启举具有明显的抑制效果。因此，设计和制造具有抑制高压直流GIL/GIS中金属微粒运动功能的表层功能梯度改性盆式绝缘子对于治理高压直流GIL/GIS中金属微粒污染具有现实意义。In the present invention, the epoxy resin insulator is subjected to surface functional gradient modification treatment. According to the production plan, the surface conductivity of the basin-type insulator modified by the surface-layer function gradient presents a gradient distribution, which optimizes the surface charge distribution of the basin-type insulator under long-term operation conditions and reduces the metal The axial gradient force of the electric field required for the particles to move to the weak point of the insulation has an obvious inhibitory effect on the lifting of the metal particles at different positions from the insulator. Therefore, it is of practical significance to design and manufacture surface functionally gradient modified pot insulators that can inhibit the movement of metal particles in HVDC GIL/GIS for the control of metal particle pollution in HVDC GIL/GIS.
附图说明Description of drawings
为了清楚地说明本发明技术方案的实施过程，下面对实施过程描述中所需要的附图进行简单的介绍。下列附图仅是示意性的，并不是限制性的。In order to clearly illustrate the implementation process of the technical solution of the present invention, the accompanying drawings required in the description of the implementation process are briefly introduced below. The following drawings are only schematic and not limiting.
图1是±160kV表面功能梯度改性的盆式绝缘子设计示意图；Figure 1 is a schematic diagram of the design of basin insulators with surface functional gradient modification of ±160kV;
图2是对比±160kV直流GIL/GIS内安装普通盆式绝缘子和表层功能梯度改性的盆式绝缘子对其凸面距离绝缘子不同位置金属微粒启举电压结果图。Figure 2 is a comparison of the results of the lift-up voltage of metal particles at different positions of the insulator from the convex surface of the ordinary pot insulator installed in the ±160kV DC GIL/GIS and the pot insulator with a functional gradient modification on the surface.
具体实施方式detailed description
结合下列附图和具体实施案例对本发明做进一步的详细说明。应当理解，此处的具体实施案例仅用于解释本发明，并不用于限定本发明。The present invention will be further described in detail in conjunction with the following drawings and specific implementation examples. It should be understood that the specific implementation cases herein are only used to explain the present invention, not to limit the present invention.
实施例1Example 1
本发明涉及一种基于盆式绝缘子表层结构梯度改性的GIL/GIS金属微粒启举抑制方法，利用表层结构梯度改性技术对盆式绝缘子表面进行梯度结构改性，相对于普通盆式绝缘子，高电导表面结构梯度改性的盆式绝缘子在长期运行条件下表面电荷分布更加均匀，从根源上减小了金属微粒向盆式绝缘子运动所需的电场轴向梯度力，实现对高压直流GIL/GIS金属微粒运动的抑制。The invention relates to a GIL/GIS metal particle initiation suppression method based on gradient modification of the surface structure of basin-type insulators. The surface structure gradient modification technology is used to modify the gradient structure of the surface of basin-type insulators. Compared with ordinary basin-type insulators, The basin-type insulator with gradient modified surface structure of high conductivity has a more uniform surface charge distribution under long-term operating conditions, which fundamentally reduces the axial gradient force of the electric field required for the movement of metal particles to the basin-type insulator, and realizes the high-voltage DC GIL/ Inhibition of motion of metal particles in GIS.
具体盆式绝缘子表面功能梯度氟化处理流程如下：The specific functional gradient fluorination treatment process on the surface of pot insulators is as follows:
(1)基于环氧树脂盆式绝缘子实际运行下的电场分布，将盆式绝缘子表层划分为三个区域，其中区域一、区域三进行不同时间的表层结构改性处理、区域二不进行表层结构改性处理。(1) Based on the electric field distribution of the epoxy resin pot insulator under actual operation, the surface of the pot insulator is divided into three regions, of which the surface structure modification treatment is carried out at different times in
(2)将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘贴，然后将环氧树脂盆式绝缘子放置在真空氟化反应釜内，反应釜内充入体积比为1：6的氟气与氮气混合气体，反应条件为：气体温度10℃、气体压力0.04Mpa，对环氧树脂盆式绝缘子的区域一进行15min的表层结构改性处理，改性处理后区域一表面结构改性后表面电导率为5.02×10-14S-5.05×10-14S。(2) Paste areas 2 and 3 with polytetrafluoroethylene anti-corrosion tape, then place the epoxy resin pot insulator in the vacuum fluorination reactor, and fill the reactor with fluorine gas with a volume ratio of 1:6 Mix gas with nitrogen, the reaction conditions are: gas temperature 10°C, gas pressure 0.04Mpa, carry out surface structure modification treatment on the
(3)去除区域三的聚四氟乙烯抗腐蚀胶带，将环氧树脂盆式绝缘子放入真空氟化反应釜内进行15min的表层结构处理，表层结构改性处理后获得区域一表面电导率：6.50×10-13S-6.55×10-13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S的具有抑制高压直流GIL/GIS金属微粒启举功能的表层结构梯度改性的盆式绝缘子。(3) Remove the PTFE anti-corrosion tape in area 3, put the epoxy resin pot insulator into the vacuum fluorination reactor for 15 minutes of surface structure treatment, and obtain the surface conductivity of
(4)利用缩比直流GIL/GIS系统分析高电导表层梯度改性盆式绝缘子在不同运行工况下对其凹凸面、距离绝缘子不同位置的金属微粒启举抑制效果。(4) Using the scaled direct current GIL/GIS system to analyze the inhibitory effect of the gradient modified pot insulator on the high conductivity surface under different operating conditions on the concave-convex surface and the metal particles at different positions from the insulator.
(5)根据实验结果，对比普通GIL/GIS盆式绝缘子，表层结构梯度改性的GIL/GIS盆式绝缘子对不同位置处的金属微粒运动具有显著的抑制效果，见图2。(5) According to the experimental results, compared with ordinary GIL/GIS basin insulators, GIL/GIS basin insulators with surface structure gradient modification have a significant inhibitory effect on the movement of metal particles at different positions, as shown in Figure 2.
实施例2Example 2
本发明涉及一种基于支柱绝缘子表层结构梯度改性的GIL/GIS金属微粒启举抑制方法，利用表层结构梯度改性技术对支柱绝缘子表面进行梯度结构改性，相对于普通支柱绝缘子，高电导表面结构梯度改性的支柱绝缘子在长期运行条件下表面电荷分布更加均匀，从根源上减小了金属微粒向支柱绝缘子运动所需的电场轴向梯度力，实现对高压直流GIL/GIS金属微粒运动的抑制。The invention relates to a GIL/GIS metal particle initiation suppression method based on the gradient modification of the surface structure of post insulators. The surface structure gradient modification technology is used to modify the gradient structure of the post insulator surface. Compared with ordinary post insulators, the surface with high conductivity The post insulator with structural gradient modification has a more uniform surface charge distribution under long-term operating conditions, which fundamentally reduces the axial gradient force of the electric field required for the movement of metal particles to the post insulator, and realizes the control of the movement of high-voltage DC GIL/GIS metal particles. inhibition.
具体支柱绝缘子表面功能梯度氟化处理流程如下：The specific functional gradient fluorination treatment process on the surface of post insulators is as follows:
1)基于环氧树脂支柱绝缘子实际运行下的电场分布，将支柱绝缘子表层划分为三个区域，其中区域一、区域三进行不同时间的表层结构改性处理、区域二不进行表层结构改性处理。1) Based on the electric field distribution of the epoxy resin post insulator under actual operation, the surface layer of the post insulator is divided into three areas, of which
2)将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘贴，然后将环氧树脂支柱绝缘子放置在真空氟化反应釜内，反应釜内充入体积比为1：10的氟气与氦气混合气体，反应条件为：气体温度30℃、气体压力0.1Mpa，对环氧树脂支柱绝缘子的区域一进行25min的表层结构改性处理，改性处理后区域一表面结构改性后表面电导率为5.02×10-14S-5.05×10-14S。2) Paste areas 2 and 3 with polytetrafluoroethylene anti-corrosion tape, then place epoxy resin post insulators in a vacuum fluorination reactor, and fill the reactor with fluorine gas and helium at a volume ratio of 1:10 Gas mixed gas, the reaction conditions are: gas temperature 30°C, gas pressure 0.1Mpa, the surface structure modification treatment of the
3)去除区域三的聚四氟乙烯抗腐蚀胶带，将环氧树脂支柱绝缘子放入真空氟化反应釜内进行30min的表层结构处理，表层结构改性处理后获得区域一表面电导率：6.50×10-13S-6.55×10-13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S的具有抑制高压直流GIL/GIS金属微粒启举功能的表层结构梯度改性的支柱绝缘子。3) Remove the PTFE anti-corrosion tape in area 3, put the epoxy resin post insulator into the vacuum fluorination reactor for 30min surface structure treatment, and obtain
4)利用缩比直流GIL/GIS系统分析高电导表层梯度改性支柱绝缘子在不同运行工况下对其凹凸面、距离绝缘子不同位置的金属微粒启举抑制效果。4) Using the scaled DC GIL/GIS system, the effect of suppressing the lifting of metal particles on the uneven surface and different positions of the distance from the insulator of the high-conductivity surface gradient modified post insulator is analyzed under different operating conditions.
实施例3Example 3
1)基于高压直流GIL/GIS运行工况下环氧树脂绝缘子表面电势分布，将环氧树脂绝缘子表面划分为三个区域；1) Based on the surface potential distribution of the epoxy resin insulator under the high-voltage DC GIL/GIS operating condition, the surface of the epoxy resin insulator is divided into three regions;
2)环氧树脂绝缘子安装前，将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘住；2) Before installing the epoxy resin insulator, stick area 2 and area 3 with PTFE anti-corrosion tape;
3)将绝缘子放置在反应釜内，反应釜内充入体积比为1：1的氟气与氦气混合气体，反应气体温度10℃、气体压力0.01Mpa，对环氧树脂绝缘子进行15min的表层结构改性处理，改性处理后区域一的表面电导率为5.02×10-14S-5.05×10-14S；3) Place the insulator in the reaction kettle, fill the reaction kettle with a mixed gas of fluorine gas and helium gas with a volume ratio of 1:1, the reaction gas temperature is 10°C, the gas pressure is 0.01Mpa, and the surface layer of the epoxy resin insulator is treated for 15 minutes. Structural modification treatment, the surface conductivity of
4)去除区域三的聚四氟乙烯抗腐蚀胶带，将绝缘子放入反应釜内进行15～30min的表层结构氟化处理，获得表层功能梯度改性的环氧树脂绝缘子；4) Remove the polytetrafluoroethylene anti-corrosion tape in area 3, put the insulator into the reactor for 15-30 minutes of surface structure fluorination treatment, and obtain the epoxy resin insulator with surface functional gradient modification;
表层功能梯度改性的环氧树脂绝缘子表面电导率呈梯度分布，其中，区域一表面电导率：6.50×10-13S-6.55×10-13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S。The surface conductivity of epoxy resin insulators modified by surface functional gradient is distributed in gradient, among which, the surface conductivity of area 1: 6.50×10 -13 S-6.55×10 -13 S, the surface conductivity of area 2: 5.80×10 -15 S-5.85×10 -15 S, area three surface conductivity: 5.02×10 -14 S-5.05×10 -14 S.
实施例4Example 4
1)基于高压直流GIL/GIS运行工况下环氧树脂绝缘子表面电势分布，将环氧树脂绝缘子表面划分为三个区域；1) Based on the surface potential distribution of the epoxy resin insulator under the high-voltage DC GIL/GIS operating condition, the surface of the epoxy resin insulator is divided into three regions;
2)环氧树脂绝缘子安装前，将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘住；2) Before installing the epoxy resin insulator, stick area 2 and area 3 with PTFE anti-corrosion tape;
3)将绝缘子放置在反应釜内，反应釜内充入体积比为1：6的氟气与氩气混合气体，反应气体温度50℃、气体压力0.1Mpa，对环氧树脂绝缘子进行30min的表层结构改性处理，改性处理后区域一的表面电导率为5.02×10-14S-5.05×10-14S；3) Place the insulator in the reactor, fill the reactor with a mixed gas of fluorine and argon with a volume ratio of 1:6, the temperature of the reaction gas is 50°C, the pressure of the gas is 0.1Mpa, and the surface layer of the epoxy resin insulator is covered for 30 minutes. Structural modification treatment, the surface conductivity of
4)去除区域三的聚四氟乙烯抗腐蚀胶带，将绝缘子放入反应釜内进行15～30min的表层结构氟化处理，获得表层功能梯度改性的环氧树脂绝缘子；4) Remove the polytetrafluoroethylene anti-corrosion tape in area 3, put the insulator into the reactor for 15-30 minutes of surface structure fluorination treatment, and obtain the epoxy resin insulator with surface functional gradient modification;
表层功能梯度改性的环氧树脂绝缘子表面电导率呈梯度分布，其中，区域一表面电导率：6.50×10-13S-6.55×10-13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S；The surface conductivity of epoxy resin insulators modified by surface functional gradient is distributed in gradient, among which, the surface conductivity of area 1: 6.50×10 -13 S-6.55×10 -13 S, the surface conductivity of area 2: 5.80×10 -15 S-5.85×10 -15 S, area three surface conductivity: 5.02×10 -14 S-5.05×10 -14 S;
4)对装有表层功能梯度改性环氧树脂绝缘子的高压直流GIL/GIS系统进行10小时额定直流电压预压，预压结束后测试距离环氧树脂绝缘子凸面不同位置处的金属微粒启举电压。4) Perform a 10-hour rated DC voltage preload on the high-voltage DC GIL/GIS system equipped with surface functional gradient modified epoxy resin insulators. After the preload is completed, test the metal particle startup voltage at different positions from the convex surface of the epoxy resin insulator .
实施例5Example 5
1)基于高压直流GIL/GIS运行工况下环氧树脂绝缘子表面电势分布，将环氧树脂绝缘子表面划分为三个区域；1) Based on the surface potential distribution of the epoxy resin insulator under the high-voltage DC GIL/GIS operating condition, the surface of the epoxy resin insulator is divided into three regions;
2)环氧树脂绝缘子安装前，将区域二、区域三用聚四氟乙烯抗腐蚀胶带粘住；2) Before installing the epoxy resin insulator, stick area 2 and area 3 with PTFE anti-corrosion tape;
3)将绝缘子放置在反应釜内，反应釜内充入体积比为1：8的氟气与氦气的混合气体，反应气体温度30℃、气体压力0.05Mpa，对环氧树脂绝缘子进行20min的表层结构改性处理，改性处理后区域一的表面电导率为5.02×10-14S-5.05×10-14S；3) Place the insulator in the reaction kettle, fill the reaction kettle with a mixed gas of fluorine gas and helium gas with a volume ratio of 1:8, the reaction gas temperature is 30°C, the gas pressure is 0.05Mpa, and the epoxy resin insulator is insulated for 20 minutes. Surface structure modification treatment, the surface conductivity of
4)去除区域三的聚四氟乙烯抗腐蚀胶带，将绝缘子放入反应釜内进行15～30min的表层结构氟化处理，获得表层功能梯度改性的环氧树脂绝缘子；4) Remove the polytetrafluoroethylene anti-corrosion tape in area 3, put the insulator into the reactor for 15-30 minutes of surface structure fluorination treatment, and obtain the epoxy resin insulator with surface functional gradient modification;
表层功能梯度改性的环氧树脂绝缘子表面电导率呈梯度分布，其中，区域一表面电导率：6.50×10-13S-6.55×10-13S、区域二表面电导率：5.80×10-15S-5.85×10-15S、区域三表面电导率：5.02×10-14S-5.05×10-14S；The surface conductivity of epoxy resin insulators modified by surface functional gradient is distributed in gradient, among which, the surface conductivity of area 1: 6.50×10 -13 S-6.55×10 -13 S, the surface conductivity of area 2: 5.80×10 -15 S-5.85×10 -15 S, area three surface conductivity: 5.02×10 -14 S-5.05×10 -14 S;
4)对装有表层功能梯度改性环氧树脂绝缘子的高压直流GIL/GIS系统进行1～10小时额定直流电压预压，预压结束后测试距离环氧树脂绝缘子凸面不同位置处的金属微粒启举电压。4) Preload the high-voltage DC GIL/GIS system equipped with surface functionally gradient modified epoxy resin insulators for 1 to 10 hours at rated DC voltage, and test the metal particles at different positions from the convex surface of the epoxy resin insulator after preloading. lift voltage.
本发明并不限于上文描述的实施方式。以上对具体实施方式的描述旨在描述和说明本发明的技术方案，上述的具体实施方式仅仅是示意性的，并不是限制性的。在不脱离本发明宗旨和权利要求所保护的范围情况下，本领域的普通技术人员在本发明的启示下还可做出很多形式的具体变换，这些均属于本发明的保护范围之内。The present invention is not limited to the embodiments described above. The above description of the specific embodiments is intended to describe and illustrate the technical solution of the present invention, and the above specific embodiments are only illustrative and not restrictive. Without departing from the gist of the present invention and the scope of protection of the claims, those skilled in the art can also make many specific changes under the inspiration of the present invention, and these all belong to the protection scope of the present invention.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447630A (en) * | 2018-02-28 | 2018-08-24 | 天津大学 | Design method of GIL insulator with two-dimensional linear gradient distribution of surface conductance |
| CN108461234A (en) * | 2018-02-28 | 2018-08-28 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two dimension ∧ type gradients |
| CN109767884A (en) * | 2018-12-29 | 2019-05-17 | 南方电网科学研究院有限责任公司 | Manufacturing method of GIL insulator with surface conductance gradient distribution |
| CN109830347A (en) * | 2019-01-29 | 2019-05-31 | 天津大学 | The high voltage direct current GIL quick industrial processing method of surface function gradient insulator |
| CN111261347A (en) * | 2020-01-21 | 2020-06-09 | 天津大学 | Surface roughness functional gradient electric field homogenization method for HVDC basin insulators |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2995462B1 (en) * | 2012-09-10 | 2014-09-05 | Alstom Technology Ltd | MEDIUM OR HIGH VOLTAGE ELECTRICAL APPARATUS WITH LOW ENVIRONMENTAL IMPACT AND HYBRID INSULATION |
-
2021
- 2021-08-18 CN CN202110948884.3A patent/CN113628816B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447630A (en) * | 2018-02-28 | 2018-08-24 | 天津大学 | Design method of GIL insulator with two-dimensional linear gradient distribution of surface conductance |
| CN108461234A (en) * | 2018-02-28 | 2018-08-28 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two dimension ∧ type gradients |
| CN109767884A (en) * | 2018-12-29 | 2019-05-17 | 南方电网科学研究院有限责任公司 | Manufacturing method of GIL insulator with surface conductance gradient distribution |
| CN109830347A (en) * | 2019-01-29 | 2019-05-31 | 天津大学 | The high voltage direct current GIL quick industrial processing method of surface function gradient insulator |
| CN111261347A (en) * | 2020-01-21 | 2020-06-09 | 天津大学 | Surface roughness functional gradient electric field homogenization method for HVDC basin insulators |
Non-Patent Citations (3)
| Title |
|---|
| 特高压GIS盆式绝缘子沿面闪络特性研究综述;孙秋芹等;《高压电器》;20180516(第05期);25-33页 * |
| 直流GIL用非线性电导环氧绝缘子电场仿真;李进等;《高电压技术》;20190413(第04期);54-61页 * |
| 直流气体绝缘输电线路的绝缘设计;汤浩等;《电网技术》;20080320(第06期);69-74页 * |
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