摘要
气体绝缘开关设备(GIS)中环氧盆式绝缘子在生产过程中,环氧树脂与固化剂混合不均及高黏度可导致易形成气泡缺陷的问题。针对上述问题,基于主动红外热波检测技术,建立了含气泡缺陷的简化环氧材料热传导仿真模型,并对气泡缺陷的直径、深度及激励参数对检测结果的影响进行仿真分析。结果表明:环氧材料缺陷处表面温度随缺陷深度增加呈减小的趋势,随缺陷直径增加呈增大的趋势。仿真模型中缺陷深度从0.3 mm增长至1.9 mm。环氧材料缺陷处表面温度下降5.2%,温差由2.14℃下降至0.02℃。气泡缺陷直径从0.2 mm增长至1.0 mm。环氧材料缺陷处表面温度上升5%,温差由0.10℃增长至2.14℃。基于仿真结果,缺陷检测中推荐热激励功率为10000 W/m^(2),激励时间为6 s。研究结果为环氧盆式绝缘子的出厂检测提供一种可有效提高检测效率和识别精度的技术方案。
In the production process of epoxy bushing insulators used in gas-insulated switchgear(GIS),issues such as the uneven mixing of epoxy resin with curing agents and high viscosity often lead to the formation of bubble defects.To address these issues,based on the active infrared heat wave detection technology,a simplified thermal conduction simulation model of epoxy materials containing bubble defects was established,and the influence of the diameter,depth and excitation parameters of bubble defects on the detection results was simulated and analyzed.The results showed that the surface temperature at the defect location of the epoxy material decreased as the defect depth increased and increased as the defect diameter increased.In the simulation model,the defect depth increased from 0.3 mm to 1.9 mm,the surface temperature at the defect location of the epoxy material decreased by 5.2%,and the temperature difference decreased from 2.14℃to 0.02℃.Conversely,the bubble defect diameter increased from 0.2 mm to 1.0 mm,the surface temperature at the defect location of the epoxy material increased by 5%,and the temperature difference increased from 0.10℃to 2.14℃.Based on the simulation results,the recommended thermal excitation power for defect detection was 10000 W/m^(2),with an excitation time of 6 s.The research results provide a new technical scheme for the factory detection of epoxy basin insulators,which can effectively improve the detection efficiency and identification accuracy.
作者
李波
蒲曾鑫
余泊羲
赵小鱼
牧灏
杨昊
LI Bo;PU Zengxin;YU Boxi;ZHAO Xiaoyu;MU Hao;YANG Hao(Electrcic Power Research Institute,Guizhou Power Grid Co.,Ltd.,Guizhou 550002,China;School of Electronics Information,Xi'an Polytechnic University,Xi'an 710048,China)
出处
《塑料科技》
北大核心
2025年第6期158-163,共6页
Plastics Science and Technology
基金
国家自然科学基金资助项目(52007138)
中国南方电网有限责任公司创新项目(GZKJXM20222398)。
关键词
环氧盆式绝缘子
主动红外热波技术
气泡缺陷
无损检测
红外热成像
Epoxy bushing insulator
Active infrared thermal wave technology
Bubble defect
Nondestructive testing
Infrared thermography
