瓷质绝缘子表面激光辐射温度和应力特性研究
|
摘要
利用高能激光清除输电线路缠绕异物的方法取得了较好的使用效果,但激光清除异物也会使得激光照射到绝缘子上,时间过长可能会损伤绝缘子。为了研究在使用激光辐照瓷质绝缘子时的温度、应力损伤特性,文中对激光辐照不同材料瓷绝缘子不同部位的情况进行了建模、计算,重点分析了瓷绝缘子在使用普通瓷、氧化铝瓷、氧化锆瓷、堇青石瓷4种材料下的损伤特性,以及激光辐照瓷绝缘子钢帽时温度、应力的情况。结果认为,激光辐照瓷绝缘子瓷件时,氧化铝瓷绝缘子表面的辐射点中心相比其他3种材质瓷绝缘子温度最低,瓷件表面温度从光斑中心向光斑边缘急剧降低,应力在瓷绝缘子表面呈现双驼峰分布。使用激光辐照绝缘子钢帽60 s时,其表面温度较低,绝缘子不会因热冲击产生损伤,但在钢帽处产生的热应力达821 MPa,使得绝缘子存在被破坏的风险。
The method of clearing the foreign bodies in the transmission line with high-energy laser achieved good using effect. To remove the foreign bodies, laser may irradiate the insulator directly,which may damage the insulator.In order to study the temperature and stress damage characteristics of porcelain insulators when clearing the foreign bodies in the transmission line with high-energy laser. This paper performs modeling and calculation of different parts of porcelaininsulators with differentmaterials under laser irradiation. The damage characteristic ofporcelain insulators using four kind porcelains, alumina porcelain, zirconia porcelain and cordierite porcelain are analyzed,the situation of laser irradiation on steel cap of porcelain insulators are involved. The results show that when laser irradiates the porcelain part of insulator, the central temperature of the radiation point on the surface of the alumina ceramic insulator is the lowest among four kind insulators. The temperature of the porcelain part drastically decreases from the center of the laser spot to the edge of the laser spot. The stress distributes on the surface of porcelain insulators is two-humps type. When high-energy laser irradiates the steel cap of the insulator for 60 s,the surface temperature of the steel cap is low,which may not destroy the insulator, however, the stress at the steel cap reached 821 MPa,so the insulator is under the risk of being destroyed.
The method of clearing the foreign bodies in the transmission line with high-energy laser achieved good using effect. To remove the foreign bodies, laser may irradiate the insulator directly,which may damage the insulator.In order to study the temperature and stress damage characteristics of porcelain insulators when clearing the foreign bodies in the transmission line with high-energy laser. This paper performs modeling and calculation of different parts of porcelaininsulators with differentmaterials under laser irradiation. The damage characteristic ofporcelain insulators using four kind porcelains, alumina porcelain, zirconia porcelain and cordierite porcelain are analyzed,the situation of laser irradiation on steel cap of porcelain insulators are involved. The results show that when laser irradiates the porcelain part of insulator, the central temperature of the radiation point on the surface of the alumina ceramic insulator is the lowest among four kind insulators. The temperature of the porcelain part drastically decreases from the center of the laser spot to the edge of the laser spot. The stress distributes on the surface of porcelain insulators is two-humps type. When high-energy laser irradiates the steel cap of the insulator for 60 s,the surface temperature of the steel cap is low,which may not destroy the insulator, however, the stress at the steel cap reached 821 MPa,so the insulator is under the risk of being destroyed.
引文
[1]张国顺.现代激光制造技术[M].北京:化学工业出版社,2006:23-29.ZHANG Guoshun.Modern laser manufacturing technology[M].Beijing:Chemical Industry Press,2006:23-29.
[2]谷山强,陈家宏,蔡炜,等.输电线路激光除冰技术试验分析及工程应用设计[J].高电压技术,2009,35(9):2243-2249.GU Shanqiang,CHEN Jiahong,CAI Wei,et al.Experimental analysis and engineering designing of laser de-icing technology for transmission lines[J].High Voltage Engineering,2009,35(9):2243-2249.
[3]赵元林,智勇军,岐召阳.便携式输电线路异物处理装置的研制[J].电力安全技术,2017,19(7):44-47.ZHAO Yuanlin,ZHI Yongjun,QI Zhaoyang.Development of a portable transmission line foreign object processing device[J].Electric Safety Technology,2017,19(7):44-47.
[4]陈杰,梁伟,张志坚,等.架空线路异物激光清除技术研究[J].激光技术,2017,41(5):659-663.CHEN Jie,LIANG Wei,ZHANG Zhijian,et al.Study on laser removal technology of foreign bodies on overhead transmission lines[J].Laser Technology,2017,41(5):659-663.
[5]蓝信钜.激光技术[M].北京:科学出版社,2009:329-340.LAN Xinju.Laser technology[M].Beijing:Science Press,2009:329-340.
[6]王海洋.基于图像处理技术的输电线路异物检测研究[D].吉林:东北电力大学,2017.WANG Haiyang.The research of foreign body on transmission line based on image processing technology[D].Jilin:Northeast Electric Power University,2017.
[7]刘威,刘婷婷,廖文,等.陶瓷材料选择性激光烧结/熔融技术研究与应用现状[J].硅酸盐通报,2014,33(11):2881-2890.LIU Wei,LIU Tingting,LIAO Wen,et al.Study and application of selective laser sintering/melting technology of ceramic materials[J].Bulletin of the Chinese Ceramic Society,2014,33(11):2881-2890.
[8]仇卫华,刘长毅.基于Ansys的激光熔覆的数值模拟[J].机械制造与自动化,2008,37(1):13-15.QIU Weihua,LIU Zhangyi.Numerical simulation of laser cladding based on Ansys[J].Machine Building&Automation.2008,37(1):13-15.
[9]齐丽君.输电线路激光除冰的理论与实验研究[D].武汉:华中科技大学,2012.QI Lijun.Laser deicing theoritical and experimental research for transmission lines[D].Wuhan:Huazhong University of Science and Technology,2012.
[10]朱卫华.输电线路上CO2激光除冰的研究[D].武汉:华中科技大学,2007.ZHU Weihua.Research on de-icing of power line using CO2 laser[D].Wuhan:Huazhong University of Science and Technology,2007.
[11]黎卫国,郝艳捧,熊国锟,等.覆冰复合绝缘子电位分布有限元仿真[J].电工技术学报,2012,27(12):29-35.LI Weiguo,HAO Yanpeng,XIONG Guokun,et al.Simulation and analysis of potential distribution of iced composite insulator based on finite element method[J].Transactions of China Electrotechnical Society,2012,27(12):29-35.
[12]齐丽君,朱晓,朱长虹,等.瓷绝缘子表面激光损伤的数值模拟和实验研究[J].激光技术,2011,35(6):844-848.QI Lijun,ZHU Xiao,ZHU Changhong,et al.Numerical simulation and experiment research of laser damage of porcelain insulator surface[J].Laser Technology,2011,35(6):844-848.
[13]李玉华,马法君,戴能利,等.超短脉冲激光对无机硅材料的损伤[J].中国激光,2007(7):1009-1013.LI Yuhua,MA Fajun,DAI Nengli,et al.Ultra-short pulsed laser-induced damage in inorganic silicon materials[J].Chinese Journal of Lasers,2007(7):1009-1013.
[14]黄清,魏旭,周志成.激光对架空输电导线的温度影响研究[J].江苏电机工程,2016,35(6):45-49.HUNG Qing,WEI Xu,ZHOU Zhicheng.Research on temperature effect of laser on overhead transmissionline[J].Jiangsu Electrical Engineering,2016,35(6):45-49.
[15]郭维,莫润阳.脉冲激光辐照绝缘子产生的瞬态温度场[J].声学技术,2013,32(4):145-148.GUO Wei,MO Runyang.Transient temperature field generated by a pulse laser line source in the procelein insulator[J].Technical Technology,2013,32(4):145-148.(163)
[16]曾震武,赵云芳,袁博,等.基于Ansys的激光反导热力效应研究[J].西安邮电学院学报,2011,16(s2):7-10.ZENG Zhenwu,ZHAO Yunfang,YUAN Bo,et al.Research on thermal stress in laser anti-missle process based on Ansys[J].Journal of Xi’an University of Posts and Telecommunications,2011,16(s2):7-10.
[17]刘鹏.基于红外和紫外成像法的零值绝缘子发热与放电特性研究[D].保定:华北电力大学,2016.LIU Peng.Study on zero value insulator heating and discharge characteristic based on the infrared and ultraviolet imaging method[D].Baoding:School of Electrical and Electronic Engineering,2017.
[18]邱志斌,阮江军,黄道春,等.输电线路悬式瓷绝缘子老化形式分析与试验研究[J].高电压技术,2016,42(4):1259-1267.QIU Zhibin,RUAN Jiangjun,HUANG Daochun,et al.Study on aging modes and test of transmission line porce-(156)lain suspension insulators[J].High Voltage Engineering,2016,42(4):1259-1267.
[19]李鸿泽,陈光,刘洋,等.架空线路典型导线与异物激光烧蚀特性试验研究[J].高电压技术,2015,41(s1):107-111.LI Hongze,CHEN Guang,LIU Yang,et al.Experimental study on laser ablation characteristics of typical wire and foreign body in overhead line[J].High Voltage Engineering,2015,41(s1):107-111.
[20]周玉.陶瓷材料学[M].哈尔滨:哈尔滨工业大学出版社1995:23-29.ZHOU Yu.Science of ceramic material[M].Harbin:Harbin Institute of Technology Press,1995:23-29.
[2]谷山强,陈家宏,蔡炜,等.输电线路激光除冰技术试验分析及工程应用设计[J].高电压技术,2009,35(9):2243-2249.GU Shanqiang,CHEN Jiahong,CAI Wei,et al.Experimental analysis and engineering designing of laser de-icing technology for transmission lines[J].High Voltage Engineering,2009,35(9):2243-2249.
[3]赵元林,智勇军,岐召阳.便携式输电线路异物处理装置的研制[J].电力安全技术,2017,19(7):44-47.ZHAO Yuanlin,ZHI Yongjun,QI Zhaoyang.Development of a portable transmission line foreign object processing device[J].Electric Safety Technology,2017,19(7):44-47.
[4]陈杰,梁伟,张志坚,等.架空线路异物激光清除技术研究[J].激光技术,2017,41(5):659-663.CHEN Jie,LIANG Wei,ZHANG Zhijian,et al.Study on laser removal technology of foreign bodies on overhead transmission lines[J].Laser Technology,2017,41(5):659-663.
[5]蓝信钜.激光技术[M].北京:科学出版社,2009:329-340.LAN Xinju.Laser technology[M].Beijing:Science Press,2009:329-340.
[6]王海洋.基于图像处理技术的输电线路异物检测研究[D].吉林:东北电力大学,2017.WANG Haiyang.The research of foreign body on transmission line based on image processing technology[D].Jilin:Northeast Electric Power University,2017.
[7]刘威,刘婷婷,廖文,等.陶瓷材料选择性激光烧结/熔融技术研究与应用现状[J].硅酸盐通报,2014,33(11):2881-2890.LIU Wei,LIU Tingting,LIAO Wen,et al.Study and application of selective laser sintering/melting technology of ceramic materials[J].Bulletin of the Chinese Ceramic Society,2014,33(11):2881-2890.
[8]仇卫华,刘长毅.基于Ansys的激光熔覆的数值模拟[J].机械制造与自动化,2008,37(1):13-15.QIU Weihua,LIU Zhangyi.Numerical simulation of laser cladding based on Ansys[J].Machine Building&Automation.2008,37(1):13-15.
[9]齐丽君.输电线路激光除冰的理论与实验研究[D].武汉:华中科技大学,2012.QI Lijun.Laser deicing theoritical and experimental research for transmission lines[D].Wuhan:Huazhong University of Science and Technology,2012.
[10]朱卫华.输电线路上CO2激光除冰的研究[D].武汉:华中科技大学,2007.ZHU Weihua.Research on de-icing of power line using CO2 laser[D].Wuhan:Huazhong University of Science and Technology,2007.
[11]黎卫国,郝艳捧,熊国锟,等.覆冰复合绝缘子电位分布有限元仿真[J].电工技术学报,2012,27(12):29-35.LI Weiguo,HAO Yanpeng,XIONG Guokun,et al.Simulation and analysis of potential distribution of iced composite insulator based on finite element method[J].Transactions of China Electrotechnical Society,2012,27(12):29-35.
[12]齐丽君,朱晓,朱长虹,等.瓷绝缘子表面激光损伤的数值模拟和实验研究[J].激光技术,2011,35(6):844-848.QI Lijun,ZHU Xiao,ZHU Changhong,et al.Numerical simulation and experiment research of laser damage of porcelain insulator surface[J].Laser Technology,2011,35(6):844-848.
[13]李玉华,马法君,戴能利,等.超短脉冲激光对无机硅材料的损伤[J].中国激光,2007(7):1009-1013.LI Yuhua,MA Fajun,DAI Nengli,et al.Ultra-short pulsed laser-induced damage in inorganic silicon materials[J].Chinese Journal of Lasers,2007(7):1009-1013.
[14]黄清,魏旭,周志成.激光对架空输电导线的温度影响研究[J].江苏电机工程,2016,35(6):45-49.HUNG Qing,WEI Xu,ZHOU Zhicheng.Research on temperature effect of laser on overhead transmissionline[J].Jiangsu Electrical Engineering,2016,35(6):45-49.
[15]郭维,莫润阳.脉冲激光辐照绝缘子产生的瞬态温度场[J].声学技术,2013,32(4):145-148.GUO Wei,MO Runyang.Transient temperature field generated by a pulse laser line source in the procelein insulator[J].Technical Technology,2013,32(4):145-148.(163)
[16]曾震武,赵云芳,袁博,等.基于Ansys的激光反导热力效应研究[J].西安邮电学院学报,2011,16(s2):7-10.ZENG Zhenwu,ZHAO Yunfang,YUAN Bo,et al.Research on thermal stress in laser anti-missle process based on Ansys[J].Journal of Xi’an University of Posts and Telecommunications,2011,16(s2):7-10.
[17]刘鹏.基于红外和紫外成像法的零值绝缘子发热与放电特性研究[D].保定:华北电力大学,2016.LIU Peng.Study on zero value insulator heating and discharge characteristic based on the infrared and ultraviolet imaging method[D].Baoding:School of Electrical and Electronic Engineering,2017.
[18]邱志斌,阮江军,黄道春,等.输电线路悬式瓷绝缘子老化形式分析与试验研究[J].高电压技术,2016,42(4):1259-1267.QIU Zhibin,RUAN Jiangjun,HUANG Daochun,et al.Study on aging modes and test of transmission line porce-(156)lain suspension insulators[J].High Voltage Engineering,2016,42(4):1259-1267.
[19]李鸿泽,陈光,刘洋,等.架空线路典型导线与异物激光烧蚀特性试验研究[J].高电压技术,2015,41(s1):107-111.LI Hongze,CHEN Guang,LIU Yang,et al.Experimental study on laser ablation characteristics of typical wire and foreign body in overhead line[J].High Voltage Engineering,2015,41(s1):107-111.
[20]周玉.陶瓷材料学[M].哈尔滨:哈尔滨工业大学出版社1995:23-29.ZHOU Yu.Science of ceramic material[M].Harbin:Harbin Institute of Technology Press,1995:23-29.