Surface treatment method of GIS/GIL epoxy resin insulator

A technology of epoxy resin and surface treatment, which is applied in the field of high-pressure equipment to achieve the effects of high processing efficiency, simple equipment, and improved cleanliness

Pending Publication Date: 2022-03-15
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are examples of DC GIS / GIL engineering applications in the world, they are all exchanged for the safety of equipment operation by greatly increasing the insulation margin, and have not fundamentally solved the design and manufacturing problems of DC GIS / GIL

Method used

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  • Surface treatment method of GIS/GIL epoxy resin insulator
  • Surface treatment method of GIS/GIL epoxy resin insulator
  • Surface treatment method of GIS/GIL epoxy resin insulator

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The present embodiment provides a surface treatment method for a GIS / GIL epoxy insulator, comprising the following steps:

[0033] (1) Place bisphenol A epoxy resin, acid anhydride curing agent and micro-alumina filler in a container, stir for 30 minutes at a rotating speed of 60 r / min, and mix evenly to obtain a mixture, wherein bisphenol A epoxy resin and acid anhydride are cured The mass ratio of the agent to the micro-alumina filler is bisphenol A epoxy resin: acid anhydride curing agent: micro-alumina filler = 100:85:330;

[0034] (2) the mixture is evacuated under the vacuum degree of -0.1MPa, and the time of the evacuation is 30min;

[0035] (3) preheating the mold at 100° C. for 2 hours, and slowly pouring the mixture obtained in step (2) into the mold with the release agent applied to the inner wall after the preheating treatment;

[0036] (4) Curing the mold obtained in step (3) at 100°C for 10h, then heating up to 140°C, performing secondary curing for 14h, ...

Embodiment 2

[0042] The present embodiment provides a surface treatment method for a GIS / GIL epoxy insulator, comprising the following steps:

[0043] (1) Place bisphenol A epoxy resin, acid anhydride curing agent and micro-alumina filler in a container, stir for 30 minutes at a rotating speed of 50 r / min, and mix evenly to obtain a mixture, wherein bisphenol A epoxy resin and acid anhydride are cured The mass ratio of the agent to the micro-alumina filler is bisphenol A epoxy resin: acid anhydride curing agent: micro-alumina filler = 100:85:330;

[0044] (2) the mixture is evacuated under the vacuum degree of -0.1MPa, and the time of the evacuation is 30min;

[0045] (3) preheating the mold at 100° C. for 1 h, and slowly pouring the mixture obtained in step (2) into the mold with the release agent applied to the inner wall after the preheating treatment;

[0046] (4) Curing the mold obtained in step (3) at 100°C for 10h, then heating up to 140°C, performing secondary curing for 14h, cool...

Embodiment 3

[0050] The present embodiment provides a surface treatment method for a GIS / GIL epoxy insulator, comprising the following steps:

[0051] (1) Place bisphenol A epoxy resin, acid anhydride curing agent and micro-alumina filler in a container, stir for 30 minutes at a rotating speed of 70 r / min, and mix evenly to obtain a mixture, wherein bisphenol A epoxy resin and acid anhydride are cured The mass ratio of the agent to the micro-alumina filler is bisphenol A epoxy resin: acid anhydride curing agent: micro-alumina filler = 100:85:330;

[0052] (2) the mixture is evacuated under the vacuum degree of -0.1MPa, and the time of the evacuation is 30min;

[0053] (3) preheating the mold at 100° C. for 3 hours, and slowly pouring the mixture obtained in step (2) into the mold with the release agent applied to the inner wall after the preheating treatment;

[0054] (4) Curing the mold obtained in step (3) at 100°C for 10h, then heating up to 140°C, performing secondary curing for 14h, ...

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Abstract

The invention discloses a surface treatment method of a GIS/GIL epoxy resin insulator, and belongs to the field of high-voltage equipment. The method comprises the following steps that a laser beam with the power density being 10-20 W/cm < 2 > is used for uniformly scanning a GIS/GIL epoxy resin insulator sample, and the scanning time is 20-30 min. According to the method, laser treatment is carried out on the surface of the GIS/GIL epoxy insulator, the surface flashover voltage of the GIS/GIL epoxy insulator is improved by changing laser parameters, and a brand new method is provided for manufacturing the high-performance GIS/GIL epoxy resin insulator.

Description

technical field [0001] The invention belongs to the field of high-voltage equipment, and relates to a surface treatment method for a GIS / GIL epoxy resin insulator. Background technique [0002] With the rapid development of the economy and the continuous improvement of users' requirements for electric energy, the application of DC transmission technology in the long-distance transmission of electric energy is becoming more and more extensive. Compared with traditional AC power transmission, the use of DC power transmission can not only increase the transmission capacity and transmission distance, reduce line losses, and solve the stability problem of synchronous operation of the system, but also can interconnect renewable energy with traditional energy in a wide area, fully improving renewable energy. utilization rate. my country's coastal wind power resources are abundant, and the DC gas-insulated switchgear (GIS) and gas-insulated transmission line (GIL) have the advantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/04
CPCH01B19/04
Inventor 黎小林徐永生肖微李进杜伯学
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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