电工技术学报  2019, Vol. 34 Issue (24): 5262-5269    DOI: 10.19595/j.cnki.1000-6753.tces.181607
高电压与绝缘 |
NH3对DBD降解SF6影响的试验研究
李亚龙1, 张晓星1, 2, 3, 崔兆仑1, 肖焓艳2, 张国治1
1. 武汉大学电气与自动化学院 武汉 430072;
2. 湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室 武汉 430068;
3. 输配电装备及系统安全与新技术国家重点实验室(重庆大学) 重庆 400044
Experiment of Effect of Ammonia on Degradation of Sulfur Hexafluoride by Dielectric Barrier Discharge
Li Yalong1, Zhang Xiaoxing1, 2, 3, Cui Zhaolun1, Xiao Hanyan2, Zhang Guozhi1
1. School of Electrical Engineering and Automation Wuhan University Wuhan 430072 China;
2. Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of Technology Wuhan 430068 China;
3. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China;
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摘要 随着SF6在电力工业中的大量使用,气体绝缘设备产生的SF6废气急剧增加,未经处理的SF6废气会对环境产生严重影响,因此对SF6进行处理就显得尤为重要。本文基于介质阻挡放电(DBD)等离子体技术在NH3的协同作用下对SF6进行降解处理。研究表明:NH3能够促进SF6分解,提高SF6的降解率和降解效率。其中,NH3和SF6的体积分数比为11时具有最好的协同促进作用,90W输入功率下可以使体积分数为2%的SF6在50mL/min的流速下降解率达到97.5%;同时NH3参与下也会使SF6分解更加彻底,析出固态S单质、[NH4]2SO4、NH4F和NH4HF2;气体产物主要有SiF4、SiH4、SO2F2、SO2、SOF4、SOF2、S2F10、SF4及氮氧化物(NOx)等。
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李亚龙
张晓星
崔兆仑
肖焓艳
张国治
关键词 介质阻挡放电(DBD)NH3SF6降解率降解产物    
Abstract:With the extensive use of SF6 in the power industry, the SF6 emission from gas- insulated equipment has also increased dramatically, and untreated SF6 emission has an adverse impact on the environment. Therefore, it is important to deal with SF6 waste gas. In this paper, based on the dielectric barrier discharge (DBD) plasma technology, SF6 was degraded under the synergistic effect of NH3. Studies have shown that: NH3 can promote the decomposition process of SF6, and improve the degradation rate efficiency (DRE) and energy yield (EY). NH3 and SF6 show the best synergistic effect when the concentration ratio is 11, and the input power of 90W can make the 2% SF6 decomposed 97.5% at a flow rate of 50mL/min. At the same time, with NH3 addition, SF6 is decomposed more thoroughly, and the solid states S element,[NH4]2SO4, NH4F and NH4HF precipitate. Gas products mainly include SiF4, SiH4, SO2F2, SO2, SOF4, SOF2, S2F10, SF4 and nitrogen oxides (NOx).
Key wordsDielectric barrier discharge (DBD)    NH3    SF6    degradation rate efficiency (DRE)    degradation products   
收稿日期: 2018-10-09      出版日期: 2019-12-30
PACS: TM213  
通讯作者: 张晓星, 男,1972年生,教授,博士生导师,研究方向为电气设备在线监测与故障诊断、绝缘状态评估、新型传感器技术以及SF6替代气体等方面研究。E-mail:xiaoxingzhang@whu.edu.cn   
作者简介: 李亚龙,男,1989年生,博士研究生,研究方向为气体绝缘电气设备在线监测、SF<sub>6</sub>环保替代气体、气体放电等离子体等方面研究。E-mail:yalongli1122@whu.edu.cn
引用本文:   
李亚龙, 张晓星, 崔兆仑, 肖焓艳, 张国治. NH3对DBD降解SF6影响的试验研究[J]. 电工技术学报, 2019, 34(24): 5262-5269. Li Yalong, Zhang Xiaoxing, Cui Zhaolun, Xiao Hanyan, Zhang Guozhi. Experiment of Effect of Ammonia on Degradation of Sulfur Hexafluoride by Dielectric Barrier Discharge. Transactions of China Electrotechnical Society, 2019, 34(24): 5262-5269.
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