Deposit Criterion of Pollution Particles on Composite Insulators Surface under High Speed Aerosol
Lü Fangcheng1, Liu Hongyu1, Wang Fochi1, 2, Yang Shengjie1, Ma Jianqiao1
1.Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense North China Electric Power University Baoding 071003 China 2.China Electric Power Research Institute Beijing 100192 China
Abstract：The studies of insulators contamination under high speed aerosol condition make great contributions to the cleaning and prevention of pollution flashover under the condition of sandstorm or high speed operation of electric multiple units(EMUs).The deposit criterion of contamination particles on the surface of composite insulators is proposed in this paper.Then the computational fluid mechanics (CFD) model of composite insulators contamination under high speed aerosol condition is established.The validities of the deposit criterion and the CFD model are verified in the pollution particle distribution character perspective by the experiments results and the references which gave an exponential analysis of the insulators with high voltage isolating switch in EMUs.The simulation analyzes the composite insulator contamination under different particle sizes and indicates that particle size has an obvious influence on the insulator contamination.When the particle size is small,eddy collision is the main way of collision between contamination particulates and insulators.So the collision and deposition may occur on windward and leeward sides.When the size is larger,the inertial impaction is the main mode.Therefore,the collision and deposition only occur on the windward side.When the size is large enough to a certain extent,the deposition will never occur on both windward and leeward sides.
[1] 李和明,王胜辉,律方成,等.基于放电紫外成像参量的绝缘子污秽状态评估[J].电工技术学报,2010,25(12):22-29. Li Heming,Wang Shenghui,Lü Fangcheng,et al.Contamination condition evaluation of insulators based on discharge ultraviolet imaging parameters [J].Transactions of China Electrotechnical Society,2010,25(12):22-29. [2] 金立军,张达,段绍辉,等.基于红外与紫外图像信息融合的绝缘子污秽状态识别[J].电工技术学报,2014,29(8):309-318. Jin Lijun,Zhang Da,Duan Shaohui,et al.Recognition of contamination grades of insulators based on IR and UV image information fusion[J].Transactions of China Electrotechnical Society,2014,29(8):309-318. [3] 孟志高,蒋兴良,董冰冰,等.自然雾条件下严重染污玻璃,复合绝缘子交流污闪特性[J].电工技术学报,2016,31(12):65-71. Meng Zhigao,Jiang Xingliang,Dong Bingbing,et al.AC pollution flashover characteristics of surged polluted glass and composite insulators under natural fog conditions[J].Transactions of China Electrotechnical Society,2016,31(12):65-71. [4] 谷裕,阳林,张福增,等.高海拔地区特高压换流站大尺寸复合支柱绝缘子直流污闪特性[J].电工技术学报,2016,31(10):93-101. Gu Yu,Yang Lin,Zhang Fuzeng,et al.DC pollution flashover performance of ultra high voltage convert stations large-size composite post insulators at high altitude areas[J].Transactions of China Electrotechnical Society,2016,31(10):93-101. [5] 戴罕奇,赵晨龙,梁建瑜,等.染污硅橡胶在不同憎水性时的污闪特性[J].电工技术学报,2016,31(10):102-111. Dai Hanqi,Zhao Chenlong,Liang Jianyu,et al.Flashover characteristic of polluted silicone rubberwith different hydrophobicity[J].Transactions of China Electrotechnical Society,2016,31(10):102-111. [6] Austin A O.The high efficiency suspension insulator[J].Proceedings of the American Institute of Electrical Engineers,1911,30(6):1319-1344. [7] John W J,Sayers F M.Transmission-line insulators under deposit conditions[J].Journal of the Institution of Electrical Engineers,1935,77(467):629-648. [8] Jolly D C.Contamination flashover theory and insulator design[J].Journal of the Franklin Institute,1972,294(6):483-500. [9] Gertsik A K,Korsuntser A V,Nikol’Skii N K.The effect of fouling on insulators for HVDC overhead lines[J].Direct Current,1957,3:219-226. [10]He Bo,Jin Haiyun,Gao Naikui,et al.Characteristics of dust deposition on suspended insulators during simulated sandstorm[J].IEEE Transactions on Dielectrics and Electrical Insulation,2010,17(1):100-105. [11]Sun Jixing,Gao Guoqing,Zhou Lijun,et al.Pollution accumulation on rail insulator in high-speed aerosol[J].IEEE Transactions on Dielectrics and Electrical Insulation,2013,20(3):731-738. [12]李恒真,刘刚,李立浧.广州地区线路盘式防污型玻璃绝缘子的自然积污规律[J].中国电机工程学报,2011,31(25):118-124. Li Hengzhen,Liu Gang,Li Licheng.Natural contamination deposit law of line disc anti-contamination glass insulator in Guangzhou area[J].Proceedings of the CSEE,2011,31(25):118-124. [13]范建斌,宿志一,李武峰,等.高压直流支柱绝缘子和套管伞形结构研究[J].中国电机工程学报,2007,27(21):1-6. Fan Jianbin,Su Zhiyi,Li Wufeng,et al.Research on profiles of HVDC post insulator and bushing[J].Proceedings of the CSEE,2007,27(21):1-6. [14]蒋兴良,李海波.计算流体力学在绝缘子积污特性分析中的应用[J].高电压技术,2010,36(2):329-334. Jiang Xingliang,Li Haibo.Application of computational fluid dynamics to analysis of contamination depositing characteristics of insulators[J].High Voltage Engineering,2010,36(2):329-334. [15]李恒真,赖江宇,雷乾,等.污秽颗粒在绝缘表面的碰撞和吸附[J].高电压技术,2012,38(10):2596-2603. Li Hengzhen,Lai Jiangyu,Lei Qian,et al.Collision and adsorption of pollution particles on the surface of electrical insulator[J].High Voltage Engineering,2012,38(10):2596-2603. [16]贺博,陈邦发,高乃奎,等.沙尘微粒在硅橡胶绝缘材料表面的沉降模型[J].西安交通大学学报,2009,43(12):86-90. He Bo,Chen Bangfa,Gao Naikui,et al.A model for sand/dust deposition on the surface of silicon rubber[J].Journal of Xi’an Jiaotong University,2009,43(12):86-90. [17]Blanchard R P.Measurements and modeling of coal ash deposition in an entrained-flow reactor[D].Provo:Brigham Young University,2008. [18]Rogers L N,Reed J.The adhesion of particles undergoing an elastic-plastic impact with a surface[J].Journal of Physics D:Applied Physics,1984,17(4):677-689. [19]Dahneke B.The capture of aerosol particles by surfaces[J].Journal of colloid and interface science,1971,37(2):342-353. [20]Reed J.Energy losses due to elastic wave propagation during an elastic impact[J].Journal of Physics D:Applied Physics,1985,18(12):2329-2337. [21]Johnson K L,Kendall K,Roberts A D.Surface energy and the contact of elastic solids[C]//Proceedings of the Royal Society of London A:Mathematical,Physical and Engineering Sciences,1971,324(1558):301-313. [22]Konstandopoulos A G.Particle sticking/rebound criteria at oblique impact[J].Journal of Aerosol Science,2006,37(3):292-305. [23]Ferziger J H,Peric' M.Computational methods for fluid dynamics[M].Berlin:Springer,2001:103-105. [24]Crowe C T,Schwarzkopf J D,Sommerfeld M,et al.Multiphase flows with droplets and particles[M].Boca Raton:CRC Press,2011:214-217. [25]律方成,黄华,刘云鹏,等.风洞模拟自然横风条件下绝缘子带电积污特性[J].高电压技术,2014,40(5):1281-1289. Lü Fangcheng,Huang Hua,Liu Yunpeng,et al.Contamination depositing characteristics of insulators under natural crosswind conditions with wind tunnel simulation[J].High Voltage Engineering,2014,40(5):1281-1289. [26]Bouris D,Papadakis G,Bergeles G.Numerical evaluation of alternate tube configurations for particle deposition rate reduction in heat exchanger tube bundles[J].International Journal of Heat and Fluid Flow,2001,22(5):525-536. [27]Sandberg J.Fouling in biomass fired boilers[D].V?ster?s:M?lardalen University,2011. [28]刘瑛岩,李燕,王晶,等.绝缘子表面对污秽颗粒的粘附力及长程吸引力[J].高电压技术,2014,40(4):1010-1016. Liu Yingyan,Li Yan,Wang Jing,et al.Adhesion force and long-range attractive force between contamination particles and insulator surface[J].High Voltage Engineering,2014,40(4):1010-1016. [29]屠幼萍,孙佑飞,彭庆军,等.雾霾环境下自然积污绝缘子的污秽颗粒粒径分布特性[J].高电压技术,2014,40(11):3318-3326. Tu Youping,Sun Youfei,Peng Qingjun,et al.Particle size distribution characteristics of naturally polluted insulators under the fog-haze environment[J].High Voltage Engineering,2014,40(11):3318-3326.
2017, Vol. 32 
