沿面介质阻挡放电的低压电极配置方法  

Configuration Method on Ground Electrode of Surface Dielectric Barrier Discharge

作　　者：李杰[1] 王昭博 姜楠[1] 商克峰[1] 鲁娜[1] 吴彦[1] 

机构地区：[1]大连理工大学电气工程学院,大连116024

出　　处：《高电压技术》2015年第9期2844-2849,共6页High Voltage Engineering

基　　金：国家自然科学基金(51177007)~~

摘　　要：沿面介质阻挡放电等离子体在臭氧生成、化工合成、流动控制等领域有着广泛的应用前景,而电极的配置对沿面放电应用效果有着重要影响。为此在石英玻璃筒上制作沿面放电等离子体发生系统,考察不同低压电极配置方法对放电特性和臭氧生成的影响,以获得沿面放电等离子体低压电极结构配置方法。研究结果表明带式电极的放电特性与臭氧生成量好于传统的面式电极,带式电极结构中,同位电极结构与异位电极结构相比,异位电极结构下的放电功率大于同位电极,其中在异位电极结构中,在电极间距为6 mm、放电电压为20 k V、气体体积流量为1 m3/h条件下,放电功率为6.5 W,臭氧生成量为34.2μg/L,高于传统的面式电极结构下的臭氧生成量50%以上,且石英玻璃筒外低压电极侧同样存在等离子体反应,产生的活性物质的量约占管内生成量的26%。Surface dielectric barrier discharge is widely used in ozone generation, chemical synthesis, flow control, and many other fields. Electrode configuration is one of the key structure parameters that remarkably affect the discharge characteristics and ozone generation. In this study, the effects of ground electrode configuration on discharge characteris- tics and ozone formation in a surface discharge reactor were systematically investigated. The reactor using the belt-like electrode showed the better performance in discharge characteristic and ozone formation compared to that using the sur- face-like electrode. Compared to the coincident electrode, the power of paralleled electrode is higher. When the discharge distance is 6 mm, gas flow rate is 1 m3/h, the discharge power and ozone concentration reach 6.5 W and 34.2 ug/L at 20 kV, respectively. The ozone concentration using the paralleled electrode is 50% higher than the ozone concentration using the surface-like electrode. There also exist plasma reactions on the outside surface of quartz tube, and the amount of the generated active material is about 26% of the inside tube.

关 键 词：介质阻挡放电 沿面介质阻挡放电 等离子体 低压电极配置 电极间距 臭氧生成 

分 类 号：O461[理学—电子物理学]