绝缘子室温硫化硅橡胶涂层热波模型及其涂覆质量无损检测方法

doi:10.19595/j.cnki.1000-6753.tces.210562

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摘要绝缘子室温硫化硅橡胶（RTV）涂层的涂覆质量是评价其应用效果的重要指标,涂覆施工过程中引入破损、杂质、脱粘、厚度不均匀或不达标等,各种形式缺陷,将严重影响绝缘子外绝缘性能,给设备安全可靠运行带来隐患。该文提出一种基于光热辐射热波检测的RTV涂层涂覆质量无损检测技术,该方法通过分析试件在可控光热激励下的表面瞬态温度场得到其内部结构信息。首先建立绝缘子RTV涂层热波模型并进行求解;对RTV涂层典型缺陷进行了检测,并利用主成分分析和独立成分分析增强缺陷信号;最后从热波响应相位谱中提取最小相频二次方根倒数特征用于定量表征RTV涂层厚度。研究表明,该方法可以实现绝缘子RTV涂层涂覆质量的快速、准确、非接触检测,具有广阔的应用前景。

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关键词 ：室温硫化硅橡胶, 光热辐射热波检测, 热波模型, 最小相频二次方根倒数, 厚度测量

Abstract：The quality of room temperature vulcanized silicone rubber (RTV) coating on insulators is an important index for evaluating its application effect. Various kinds of defects introduced during the coating construction process, such as damage, impurities, debonding, uneven thickness, etc., will seriously deteriorate the insulator's external insulation performance, and bring potential threats to the safe and reliable operation of the equipment. This paper proposes a nondestructive testing technique for RTV coating quality based on photothermal radiometry. This method obtains the internal structure information by analyzing the surface transient temperature field of the specimen after applying thermal excitation. First, the thermal wave model of insulator RTV coating was established and solved; typical defects of RTV coating were detected, and the defect signal was enhanced by principal component analysis and independent component analysis; finally, the inverse square root of the frequency of minimum phase was extracted from the phase spectrum of transient thermal response to quantitatively characterize the RTV coating thickness. Research shows that this method can achieve rapid, accurate, non-contact detection of the quality of insulator RTV coatings, and has broad application prospects.

Key words： Room temperature vulcanized silicone rubber photothermal radiometry thermal wave model inverse square root of the frequency of minimum phase thickness measurement

收稿日期: 2021-04-20

PACS:

TM216

基金资助:国家重点研发计划（2021YFC3001802）、国家自然科学基金（12104155）、上海市青年科技英才扬帆计划（21YF1408900）和上海市自然科学基金（21ZR1417100）资助项目

通讯作者: 刘立帅男,1993年生,博士,讲师,硕士生导师,研究方向为智能检测技术与电力设备无损检测。E-mail：lishuai.liu@ecust.edu.cn

作者简介: 郭晨鋆男,1988年生,博士研究生,高级工程师,研究方向为高电压绝缘技术及外绝缘状态监测评估。E-mail：807668414@qq.com

引用本文:

郭晨鋆, 刘立帅, 涂彦昕, 梅红伟, 王黎明. 绝缘子室温硫化硅橡胶涂层热波模型及其涂覆质量无损检测方法[J]. 电工技术学报, 2022, 37(11): 2753-2760. Guo Chenjun, Liu Lishuai, Tu Yanxin, Mei Hongwei, Wang Liming. Thermal Wave Model of Room Temperature Vulcanized Silicone Rubber Coating on Insulators and Nondestructive Testing Method for Coating Quality. Transactions of China Electrotechnical Society, 2022, 37(11): 2753-2760.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.210562 https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I11/2753

[1] 关志成, 刘瑛岩, 周远翔, 等. 绝缘子及输变电设备外绝缘[M]. 北京: 清华大学出版社, 2006.
[2] Cherney E, El-Hag A, Li S, et al.RTV silicone rubber pre-coated ceramic insulators for transmission lines[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, 20(1): 237-244.
[3] Ilhan S, Cherney E.Comparative tests on RTV silicone rubber coated porcelain suspension insulators in a salt-fog chamber[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2018, 25(3): 947-953.
[4] Siderakis K, Agoris D, Gubanski S.Salt fog evaluation of RTV SIR coatings with different fillers[J]. IEEE Transactions on Power Delivery, 2008, 23(4): 2270-2277.
[5] Du B X, Li Z L.Hydrophobicity, surface charge and DC flashover characteristics of direct-fluorinated RTV silicone rubber[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2015, 22(2): 934-940.
[6] 孟晓波, 梅红伟, 陈昌龙, 等. 涂抹RTV的绝缘介质表面流注传播特性的研究[J]. 电工技术学报, 2014, 29(10): 318-325.
Meng Xiaobo, Mei Hongwei, Chen Changlong, et al.Research on streamer propagation along RTV coated insulation surfaces[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 318-325.
[7] Zhang Zhijin, Qiao Xinhan, Xiang Yingzhu, et al.Comparison of surface pollution flashover characteristics of RTV (room temperature vulcanizing) coated insulators under different coating damage modes[J]. IEEE Access, 2010, 7: 40904-40912.
[8] Deng Hui, Hackam R.Electrical performance of RTV silicone rubber coating of different thicknesses on porcelain[J]. IEEE Transactions on Power Delivery, 1997, 12(2): 857-866.
[9] 李星. RTV涂层损伤对绝缘子交流污闪特性的影响研究[D]. 重庆: 重庆大学, 2015.
[10] 电力行业绝缘子标准化委员会. DL/T 627—2012 绝缘子用常温固化硅橡胶防污闪涂料[S]. 北京: 中国电力出版社, 2012.
[11] 王希林, 王晗, 赵晨龙, 等. 基于激光诱导击穿光谱的室温硫化硅橡胶材料成分研究[J]. 电工技术学报, 2016, 31(24): 96-104.
Wang Xilin, Wang Han, Zhao Chenlong, et al.Composition analysis of room temperature vulcanized material with laser-induced breakdown spectroscopy technique[J]. Transactions of China Electrotechnical Society, 2016, 31(24): 96-104.
[12] 王希林, 洪骁, 王晗, 等. 室温硫化硅橡胶的激光诱导击穿光谱特性与老化研究[J]. 中国电机工程学报, 2017, 37(10): 2774-2782.
Wang Xilin, Hong Xiao, Wang Han, et al.Study of spectral characteristics and aging performance of room temperature vulcanized silicone rubber using laser-induced breakdown spectroscopy[J]. Proceedings of the CSEE, 2017, 37(10): 2774-2782.
[13] 张血琴, 张玉翠, 郭裕钧, 等. 基于高光谱技术的复合绝缘子表面老化程度评估[J]. 电工技术学报, 2021, 36(2): 388-396.
Zhang Xueqin, Zhang Yucui, Guo Yujun, et al.Aging degree evaluation of composite insulator based on hyperspectral technology[J]. Transactions of China Electrotechnical Society, 2021, 36(2): 388-396.
[14] 郑含博, 李金恒, 刘洋, 等. 基于改进YOLOv3的电力设备红外目标检测模型[J]. 电工技术学报, 2021, 36(7): 1389-1398.
Zheng Hanbo, Li Jinheng, Liu Yang, et al.Infrared object detection model for power equipment based on improved YOLOv3[J]. Transactions of China Electrotechnical Society, 2021, 36(7): 1389-1398.
[15] 徐建军, 黄立达, 闫丽梅, 等. 基于层次多任务深度学习的绝缘子自爆缺陷检测[J]. 电工技术学报, 2021, 36(7): 1407-1415.
Xu Jianjun, Huang Lida, Yan Limei, et al.Insulator self-explosion defect detection based on hierarchical multi-task deep learning[J]. Transactions of China Electrotechnical Society, 2021, 36(7): 1407-1415.
[16] 申振腾, 陈建平, 杜厚栋, 等. 基于机器视觉的绝缘子RTV涂层质量检测方法研究及应用[J]. 电瓷避雷器, 2018(5): 233-240.
Shen Zhenteng, Chen Jianping, Du Houdong, et al.Research and application of RTV coating quality inspection method based on machine vision[J]. Insulators and Surge Arresters, 2018(5): 233-240.
[17] Chrysafi A, Athanasopoulos N, Siakavellas N, et al.Damage detection on composite materials with active thermography and digital image processing[J]. International Journal of Thermal Sciences, 2017, 116: 242-253.
[18] Yao Yuan, Sfarra S, Lagüela S, et al.Active thermography testing and data analysis for the state of conservation of panel paintings[J]. International Journal of Thermal Sciences, 2018, 126: 143-151.
[19] 刘立帅, 郭晨鋆, 王黎明, 等. 基于频域热特征成像的复合绝缘子缺陷检测方法[J]. 中国电机工程学报, 2019, 39(8): 2498-2505.
Liu Lishuai, Guo Chenjun, Wang Liming, et al.Defects detection method for composite insulators based on frequency thermal characteristics imaging[J]. Proceedings of the CSEE, 2019, 39(8): 2498-2505.
[20] Liu Lishuai, Wang Liming, Guo Chenjun, et al.Detecting defects in porcelain post insulator coated with room temperature vulcanized silicone rubber by pulsed thermography[J]. IEEE Transactions on Instrumentation and Measurement, 2019, 68(1): 225-233.
[21] 杨世铭, 陶文栓. 传热学[M]. 4版. 北京: 高等教育出版社, 2006.
[22] Monde M.Analytical method in inverse heat transfer problem using Laplace transform technique[J]. International Journal of Heat and Mass Transfer, 2000, 43: 3965-3975.
[23] Maldague X.Theory and practice of infrared technology for nondestructive testing[M]. New York, USA: Wiley, 2001.
[24] Baranowski P, Mazurek W, Wozniak J, et al.Detection of early bruises in apples using hyperspectral data and thermal imaging[J]. Journal of Food Engineering, 2012, 110(3): 345-355.
[25] Wang Fei, Wang Yonghui, Peng Wei, et al.Independent component analysis enhanced pulse thermography for high silicon oxygen phenolic resin (HSOPR) sheet with subsurface defects[J]. Infrared Physics and Technology, 2018, 92: 345-349.