线点式电晕放电特性实验研究  

Experimental Study on Line-point Corona Discharge Characteristics

作　　者：刘志强[1] 李鹏[1] 张文月[1] 李庆[1] 

机构地区：[1]河北大学静电研究所,河北保定071002

出　　处：《高压电器》2010年第2期76-78,82,共4页High Voltage Apparatus

基　　金：河北省自然基金项目(No.A2007000127);河北省教育厅重点项目(2006312)

摘　　要：目前,大气压非平衡等离子体及其源的研究局限于弱(电场)电离放电范畴,存在等离子体浓度低、能耗高和体积庞大等问题。为此,研究非均匀强电场下电晕放电特性及其离子运动规律,以便解决上述问题,成为当务之急。该实验以自制的线点式等离子体发生器为例,研究其在非均匀强电场下的电晕放电特性及离子运动规律,结果表明:使用细电晕极,更易使空气电离产生负离子;通过数据模拟,得出此线点式电晕放电空间,负离子浓度可达到1014～1015个/m3,且电压越高,越靠近电晕区,场强越大,离子输运率越高,负离子浓度越大。此装置比线板式放电装置在同一位置处单位体积内的离子浓度更高,更易集中获得荷电粒子。At present, the study of non-equilibrium plasma at atmospheric pressure and the source of it are limited to weak （electric field） ionization discharge area, there are low plasma concentrations and high energy consumption, large volume and other issues. Therefore, the research of non-uniform corona discharge characteristics and ion movement laws under the non-uniform electric field .which to solve the above issues have become imperative. In this experiment, the self-made of line-point plasma generator as the research object, study its corona discharge characteristics and the laws of ion movement which under the non-uniform and strong electric field. Finally, its unique physical properties are obtained. The use of thin corona pole, makes it easier for the air ionization generating negative ions. Through data simulation, it is obtained that this line-point corona discharge space, the concentration of negative ions can reach 10^14-10^15/m^3, and the higher the voltage, the more close to the corona zone, the greater the field strength, the higher the rate of ion transport, the greater the concentration of negative ions. This device can receive a higher concentration, more focus on access to charged particles compared to the wire-plate discharge device in the same location within the unit volume.

关 键 词：电晕放电 电晕极直径 伏安特性 离子输运特性 离子浓度 

分 类 号：TM85[电气工程—高电压与绝缘技术]