典型粉尘污染源下绝缘子积污粒径特征及其影响研究  

Particle Size Characteristics of Pollution on Insulator Under Typical Dust Pollution Source and Its Influence

作　　者：张东东 刘欣[1] 杨成顺[1] 黄宵宁[1] 张志劲[2] 陈杰[3] 邱刚 ZHANG Dongdong;LIU Xin;YANG Chengshun;HUANG Xiaoning;ZHANG Zhijin;CHEN Jie;QIU Gang(Nanjing Institute of Technology,Nanjing 211167,China;State Key Laboratory of Transmission and Distribution Equipment and System Security and New Technology,Chongqing University,Chongqing 400044,China;State Grid Jiangsu Electric Power Co.,Ltd.,Electric Power Research Institute,Nanjing 211103,China)

机构地区：[1]南京工程学院,江苏南京211167 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [3]国网江苏省电力有限公司电力科学研究院,江苏南京211103

出　　处：《绝缘材料》2022年第1期95-100,共6页Insulating Materials

基　　金：江苏省自然科学基金资助项目(BK20181021);南京工程学院高层次引进人才科研启动基金项目(YKJ201819);国网江苏电科院特殊工业粉尘地区污秽成分与绝缘子闪络特性研究项目(J2019053)。

摘　　要：从污秽颗粒粒径角度出发,测试分析了镍厂(金属)、化工厂两种典型粉尘污染源下绝缘子表面污秽粒径特征,并通过建立污秽颗粒沉积模型,研究了污秽颗粒粒径对积污的影响机制。结果表明:化工厂地区绝缘子表面污秽颗粒平均粒径仅为6.67μm,而镍厂地区绝缘子表面污秽颗粒平均粒径可达24.5μm;污秽颗粒粒径在20~30μm沉积率最大,因此镍厂区域内绝缘子表面积污严重;基于污秽颗粒沉积模型所得的仿真结果能够与现场积污现象互相印证,从而解释了污秽颗粒粒径对绝缘子积污的影响。From the perspective of the particle size of pollution particles,the particle size characteristics of the insulator surface pollution under two typical dust pollution sources of nickel plants(metal)and chemical plants were tested and analyzed,and the influence mechanism of the pollution particle size on the pollution accumulation was studied by establishing a pollution particle deposition model.The results show that the average particle size of pollution particles on insulator surface in chemical plant area is only 6.67μm,while the average particle size of pollution particles on insulator surface in nickel plant area attains 24.5μm.The deposition rate is the largest when the particle size of pollution particles is 20‒30μm,therefore the surface of insulator in nickel plant area is polluted seriously.The simulation results based on the pollution particle deposition model can confirm with the on-site pollution accumulation phenomena,which explains the influence of pollution particle size on the insulator pollution accumulation.

关 键 词：绝缘子 积污 粒径 流体力学 

分 类 号：TM216.3[一般工业技术—材料科学与工程]