网孔形沿面放电等离子体及其氧化亚硫酸钙性能
|
摘要
为了提高沿面放电的放电区域,设计了网孔电极与螺线管电极的沿面放电和同轴圆筒介质阻挡放电3种电极系统,考察臭氧生成浓度及臭氧生成效率,分析网孔电极沿面放电生成臭氧的特征;在此基础上研究了网孔尺寸和网孔间距对臭氧生成效果的影响,优化网孔沿面放电电极参数;最后利用网孔沿面放电生成臭氧对湿法脱硫浆液中的亚硫酸钙进行氧化,对照空气自氧化,分析网孔形沿面放电产生臭氧等活性物质在降低湿式石灰石–石膏法工艺中氧化空气用量方面的可行性。结果表明:在50 Hz交流高压电源供电条件下,采用网孔电极形式的电极系统臭氧生成效率最高;孔径6mm和孔边距3mm的网孔电极结构有利于网孔形沿面放电等离子体产生活性物质臭氧,臭氧最高生成质量浓度最多可达110μg/L。空气自氧化和网孔沿面放电等离子体氧化的亚硫酸钙浆液,处理时间为60min,浆液中亚硫酸钙氧化效率分别达到了52.3%和92.4%,表明了网孔电极沿面放电氧化亚硫酸钙的有效性。
In order to improve the discharge area of surface discharge plasma, we designed the pore-electrode type surface discharge, solenoid-electrode type surface discharge, and coaxial cylindrical-electrode type dielectric barrier discharge system, investigated the concentration and efficiency of ozone generation, and analyzed the ozone generation characteristic by pore electrode surface discharge. Thereby, the effect of pore diameter and pore edge distance on ozone generation efficiency was explored and the electrode parameters of pore-electrode type surface discharge were optimized. At last, the ozone generated by pore-electrode type surface discharge was utilized to oxidize calcium sulfite in wet desulfurization slurry. Compared to air self-oxidization, the feasibility of ozone and other active substances generated by pore-electrode type surface discharge on decreasing oxidation air consumption of wet limestone-gypsum process was analyzed. The results show that the ozone generation concentration are the highest in pore-electrode type surface discharge system when the AC high voltage with the frequency of 50 Hz is used as power, the electrode structure of 6 mm pore diameter and 3 mm pore edge distance is conductive to forming ozone by pore-electrode type surface discharge. The highest production of ozone can reach 110 μg/L. The oxidation rate of calcium sulfite by sole air and pore-electrode type surface discharge plasma can reach 52.3% and 92.4% respectively with 60 min treatment time, which can account for the feasibility of pore-electrode type surface discharge on oxidizing calcium sulfite.
In order to improve the discharge area of surface discharge plasma, we designed the pore-electrode type surface discharge, solenoid-electrode type surface discharge, and coaxial cylindrical-electrode type dielectric barrier discharge system, investigated the concentration and efficiency of ozone generation, and analyzed the ozone generation characteristic by pore electrode surface discharge. Thereby, the effect of pore diameter and pore edge distance on ozone generation efficiency was explored and the electrode parameters of pore-electrode type surface discharge were optimized. At last, the ozone generated by pore-electrode type surface discharge was utilized to oxidize calcium sulfite in wet desulfurization slurry. Compared to air self-oxidization, the feasibility of ozone and other active substances generated by pore-electrode type surface discharge on decreasing oxidation air consumption of wet limestone-gypsum process was analyzed. The results show that the ozone generation concentration are the highest in pore-electrode type surface discharge system when the AC high voltage with the frequency of 50 Hz is used as power, the electrode structure of 6 mm pore diameter and 3 mm pore edge distance is conductive to forming ozone by pore-electrode type surface discharge. The highest production of ozone can reach 110 μg/L. The oxidation rate of calcium sulfite by sole air and pore-electrode type surface discharge plasma can reach 52.3% and 92.4% respectively with 60 min treatment time, which can account for the feasibility of pore-electrode type surface discharge on oxidizing calcium sulfite.
引文
[1]陈武强.臭氧高级氧化技术及其在工业废水处理中的应用[J].能源与环境,2010,3:66-70.CHEN Wuqiang.The advanced oxidation technologies of ozone and its application in industrical wastewater treatment[J].Energy and Environment,2010,3:66-70.
[2]商克峰,王肖静,鲁娜,等.介质阻挡放电脱色酸性橙II废水的动力学及脱色物化效应[J].高电压技术,2018,44(9):3009-3015.SHANG Kefeng,WANG Xiaojing,LU Na,et al.Kinetic and physiochemical effects of decolorization of AO7 dye wastewater by DBD[J].High Voltage Engineering,2018,44(9):3009-3015.
[3]屠幼萍,王倩,李敏,等.臭氧质量浓度对HTV硅橡胶材料的老化作用[J].电工技术学报,2013,28(1):21-28.TU Youping,WANG Qian,LI Min,et al.Influence of ozone concentration on deterioration of HTV silicon rubber[J].Transaction of China Electrotechnical Society,2013,28(1):21-28.
[4]李汉忠.臭氧在食品行业的应用[J].食品与药品,1996,2:31-37.LI Hanzhong.Application of ozone in food industry[J].Food and Medicine,1996,2:31-37.
[5]金海龙,成少彦,宋俊杰,等.臭氧质量浓度检测在医疗方面的应用及发展[J].生物医学工程学杂志,2011,28(2):429-432.JIN Hailong,CHENG Shaoyan,SONG Junjie,et al.Application of ozone concentration detection in the medical aspects and its development[J].Journal of Biomedical Engineering,2011,28(2):429-432.
[6]徐燕,谈智,孙俊,等.臭氧空气消毒器对空气中微生物杀灭效果的研究[J].中国消毒学杂志,2007,24(1):26-28.XU Yan,TAN Zhi,SUN Jun,et al.Study on efficacy of ozone air disinfector in killing microorganisms in air[J].Chinese journal of Disinfection,2007,24(1):26-28.
[7]商克峰,王浩,岳帅,等.结构及供电电源对沿面介质阻挡放电装置放电特性及臭氧生成的影响[J].电工技术学报,2017,32(2):53-60.SHANG Kefeng,WANG Hao,YUE Shuai,et al.Effect of configuration and power supply on the discharge characteristics and ozone generation of a surface dielectric barrier discharge device[J].Transaction of China Electrotechnical Society,2017,32(2):53-60.
[8]李杰,王邵博,姜楠,等.沿面介质阻挡放电的低压电极配置方法[J].高电压技术,2015,41(9):2844-2849.LI Jie,WANG Shaobo,JIANG Nan,et al.Configuration method on ground electrode of surface dielectric barrier discharg[J].High Voltage Engnieering,2015,41(9):2844-2849.
[9]李杰,关银霞,姜楠,等.负直流电晕诱发低压电极多孔绝缘层微放电的参数优化[J].高电压技术,2017,43(6):1759-1765.LI Jie,GUAN Yinxia,JIANG Nan,et al.Optimization of microdischarge parameters of porous insulating layer on low-voltage electrode induced by negative DC corona[J].High Voltae Engineering,2017,43(6):1759-1765.
[10]吴祖良,侯培,赵佳佳,等.电晕放电耦合湿式吸收同时脱硫脱硝的实验研究[J].高电压技术,2016,42(2):398-404.WU Zuliang,HOU Pei,ZHAO Jiajia,et al.Experimental Study of Simultaneous Desulfurization and Denitrification by Corona Discharge Coupling Wet Absorption[J].High Voltage Engineering,2016,42(2):398-404.
[11]商克峰,石峰,韩长民,等.气体参数对沿面放电活性氧物质注入氧化亚硫酸铵的影响[J].高电压技术,2015,41(2):529-533.Shang Kefeng,Shi Feng,Han Changmin,et al.Effect of air factors on the oxidation of ammonium sulfite with reactive oxygen species produced in a gas-phase surface discharge reactor[J].High Voltage Engineering,2015,41(2):529-533.
[12]李悦,商克峰,鲁娜,等.沿面放电氧化液相亚硫酸铵[J].环境工程学报,2013,7(9):3489-3493.LI Yue,SHANG Kefeng,LU Na,et al.Oxidation of ammonium sulfite in aqueous solutions using surface discharge[J].Chinese Journal of Environmental Engineering,2013,7(9):3489-3493.
[13]夏芸,姚晓妹,张轶,等.沿面放电等离子体活化空气氧化亚硫酸钙实验研究[J].高电压技术,2016,42(8):2683-2684.XIA Yun,YAO Xiaomei,ZHANG Yi,et al.Experiment on calcium sulfite oxidized by surface discharge plasma activated air[J].High Voltage Engineering,2016,42(8):2683-2684.
[14]方志,吴伟杰,钱晨.水蒸气含量对Ar气中介质阻挡放电特性的影响[J].高电压技术,2015,41(9):2895-2902.ZHANG Zhi,WU Weijie,QIAN Chen.Influences of Water Vapor Volume Fraction on Discharge Characteristics of Dielectric Barrier Discharge in Ar[J].High Voltage Engineering,2015,41(9):2895-2902.
[15]李杰,赵先军,商克峰,等.沿面放电生成臭氧的传输损耗研究[J].高电压技术,2016,42(2):349-353.LI Jie,ZHAO Xianjun,SHANG Kefeng,et al.Study on Transmission Loss of Ozone Generated by Surface Discharge[J].High Voltage En gineering,2016,42(2):349-353.
[16]TAKAKI K,HATANAKAY,ARIMA K,et al.Influence of electrode configuration on ozone synthesis and microdischarge property in dielectric barrier discharge reactor[J].Vacuum,2008,83(1):128-132.
[17]房新振.沿面型介质阻挡放电相关特性和影响因素的研究[D].济南:山东大学,2013.FANG Xinzhen.Study on the characteristics and influencing factors of surface dielectric barrier discharge[D].Jinan,China:Shandong University,2013.
[18]张浩,董丽芳,赵龙虎,等.介质阻挡放电中相邻沿面放电之间的相互影响[J].河北大学学报(自然科学版),2015,35(2):127-130.ZHANG Hao,DONG Lifang,ZHAO Longhu,et al.Mutual influence between the adjacent surface discharges in a dielectric barrier discharge[J].Journal of Hebei University(Natural Science Edition),2015,35(2):127-130.
[2]商克峰,王肖静,鲁娜,等.介质阻挡放电脱色酸性橙II废水的动力学及脱色物化效应[J].高电压技术,2018,44(9):3009-3015.SHANG Kefeng,WANG Xiaojing,LU Na,et al.Kinetic and physiochemical effects of decolorization of AO7 dye wastewater by DBD[J].High Voltage Engineering,2018,44(9):3009-3015.
[3]屠幼萍,王倩,李敏,等.臭氧质量浓度对HTV硅橡胶材料的老化作用[J].电工技术学报,2013,28(1):21-28.TU Youping,WANG Qian,LI Min,et al.Influence of ozone concentration on deterioration of HTV silicon rubber[J].Transaction of China Electrotechnical Society,2013,28(1):21-28.
[4]李汉忠.臭氧在食品行业的应用[J].食品与药品,1996,2:31-37.LI Hanzhong.Application of ozone in food industry[J].Food and Medicine,1996,2:31-37.
[5]金海龙,成少彦,宋俊杰,等.臭氧质量浓度检测在医疗方面的应用及发展[J].生物医学工程学杂志,2011,28(2):429-432.JIN Hailong,CHENG Shaoyan,SONG Junjie,et al.Application of ozone concentration detection in the medical aspects and its development[J].Journal of Biomedical Engineering,2011,28(2):429-432.
[6]徐燕,谈智,孙俊,等.臭氧空气消毒器对空气中微生物杀灭效果的研究[J].中国消毒学杂志,2007,24(1):26-28.XU Yan,TAN Zhi,SUN Jun,et al.Study on efficacy of ozone air disinfector in killing microorganisms in air[J].Chinese journal of Disinfection,2007,24(1):26-28.
[7]商克峰,王浩,岳帅,等.结构及供电电源对沿面介质阻挡放电装置放电特性及臭氧生成的影响[J].电工技术学报,2017,32(2):53-60.SHANG Kefeng,WANG Hao,YUE Shuai,et al.Effect of configuration and power supply on the discharge characteristics and ozone generation of a surface dielectric barrier discharge device[J].Transaction of China Electrotechnical Society,2017,32(2):53-60.
[8]李杰,王邵博,姜楠,等.沿面介质阻挡放电的低压电极配置方法[J].高电压技术,2015,41(9):2844-2849.LI Jie,WANG Shaobo,JIANG Nan,et al.Configuration method on ground electrode of surface dielectric barrier discharg[J].High Voltage Engnieering,2015,41(9):2844-2849.
[9]李杰,关银霞,姜楠,等.负直流电晕诱发低压电极多孔绝缘层微放电的参数优化[J].高电压技术,2017,43(6):1759-1765.LI Jie,GUAN Yinxia,JIANG Nan,et al.Optimization of microdischarge parameters of porous insulating layer on low-voltage electrode induced by negative DC corona[J].High Voltae Engineering,2017,43(6):1759-1765.
[10]吴祖良,侯培,赵佳佳,等.电晕放电耦合湿式吸收同时脱硫脱硝的实验研究[J].高电压技术,2016,42(2):398-404.WU Zuliang,HOU Pei,ZHAO Jiajia,et al.Experimental Study of Simultaneous Desulfurization and Denitrification by Corona Discharge Coupling Wet Absorption[J].High Voltage Engineering,2016,42(2):398-404.
[11]商克峰,石峰,韩长民,等.气体参数对沿面放电活性氧物质注入氧化亚硫酸铵的影响[J].高电压技术,2015,41(2):529-533.Shang Kefeng,Shi Feng,Han Changmin,et al.Effect of air factors on the oxidation of ammonium sulfite with reactive oxygen species produced in a gas-phase surface discharge reactor[J].High Voltage Engineering,2015,41(2):529-533.
[12]李悦,商克峰,鲁娜,等.沿面放电氧化液相亚硫酸铵[J].环境工程学报,2013,7(9):3489-3493.LI Yue,SHANG Kefeng,LU Na,et al.Oxidation of ammonium sulfite in aqueous solutions using surface discharge[J].Chinese Journal of Environmental Engineering,2013,7(9):3489-3493.
[13]夏芸,姚晓妹,张轶,等.沿面放电等离子体活化空气氧化亚硫酸钙实验研究[J].高电压技术,2016,42(8):2683-2684.XIA Yun,YAO Xiaomei,ZHANG Yi,et al.Experiment on calcium sulfite oxidized by surface discharge plasma activated air[J].High Voltage Engineering,2016,42(8):2683-2684.
[14]方志,吴伟杰,钱晨.水蒸气含量对Ar气中介质阻挡放电特性的影响[J].高电压技术,2015,41(9):2895-2902.ZHANG Zhi,WU Weijie,QIAN Chen.Influences of Water Vapor Volume Fraction on Discharge Characteristics of Dielectric Barrier Discharge in Ar[J].High Voltage Engineering,2015,41(9):2895-2902.
[15]李杰,赵先军,商克峰,等.沿面放电生成臭氧的传输损耗研究[J].高电压技术,2016,42(2):349-353.LI Jie,ZHAO Xianjun,SHANG Kefeng,et al.Study on Transmission Loss of Ozone Generated by Surface Discharge[J].High Voltage En gineering,2016,42(2):349-353.
[16]TAKAKI K,HATANAKAY,ARIMA K,et al.Influence of electrode configuration on ozone synthesis and microdischarge property in dielectric barrier discharge reactor[J].Vacuum,2008,83(1):128-132.
[17]房新振.沿面型介质阻挡放电相关特性和影响因素的研究[D].济南:山东大学,2013.FANG Xinzhen.Study on the characteristics and influencing factors of surface dielectric barrier discharge[D].Jinan,China:Shandong University,2013.
[18]张浩,董丽芳,赵龙虎,等.介质阻挡放电中相邻沿面放电之间的相互影响[J].河北大学学报(自然科学版),2015,35(2):127-130.ZHANG Hao,DONG Lifang,ZHAO Longhu,et al.Mutual influence between the adjacent surface discharges in a dielectric barrier discharge[J].Journal of Hebei University(Natural Science Edition),2015,35(2):127-130.