电晕放电式低温等离子体电极结构优化  

Optimization of Electrode Structure for Corona Discharge Non-thermal Plasma

作　　者：何忠 胡志军 徐明 王竹槽 李建军 王志良[2] HE Zhong WANG Zhu-cao HU Zhi-jun XU Ming LI Jian-jun WANG Zhi-liang(Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Qiqing Environmental Science and Technology Co., Ltd, Nanjing 210036, China Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China)

机构地区：[1]江苏齐清环境科技有限公司江苏省环境工程重点实验室,江苏南京210036 [2]江苏省环境科学研究院江苏省环境工程重点实验室,江苏南京210036

出　　处：《广州化学》2016年第5期18-23,共6页Guangzhou Chemistry

基　　金：江苏省科技支撑计划-社会发展项目(BE2011808);江苏省环保科研课题(201110)

摘　　要：以恶臭气体氨气和硫化氢的降解率为考察指标,系统优化了电晕放电式低温等离子体设备电极间距、电极齿距、电极齿高三个参数。研究表明:氨气和硫化氢的降解首先随着电极间距和齿距的增加而增大,而后随着电极间距的进一步增大而逐渐降低,电极间距13 mm、电极齿距5 mm时具有最大的氨气和硫化氢降解率。当电极齿高<7 mm时,氨气和硫化氢的降解率随电极齿高的增加而快速增大,当电极齿高>7 mm时,其降解率随着电极齿高的进一步增大而缓慢增大,考虑到电极制作成本,故确定最佳电极齿高为7 mm。此外研究还表明,不同外施功率下,锯齿型(多齿型)的氨气降解率显著高于单一针尖型(单齿型)。With the aid of degradation rate of ammonia and hydrogen sulfide, electrode parameters of needle distance, needle pitch, needle height were optimized. The results showed that the degradation rate of ammonia and hydrogen sulfide efficiency increased with increasing electrode needle distance and needle pitch and reached a maximum of needle distance 13ram and needle pitch 5 mm, which were followed by a decrease with further increase in electrode needle distance and needle pitch. When the electrode height 〈 7 mm, degradation rate of ammonia and hydrogen sulfide efficiency increased with increasing electrode height, while the electrode height ~7 mm, degradation rate of ammonia and hydrogen sulfide weakly increased with increasing electrode height, with a view to capitalized cost, the optimal electrode needle height was 7 mm. In addition, the results also showed that the degradation rate of the ammonia gas by sawtooth pattern structure was significantly higher than that by needle structure.

关 键 词：电晕放电 低温等离子体 电极结构 

分 类 号：X51[环境科学与工程—环境工程]