针-板电极等离子体放电特性及其活化水理化特性研究  

Study on Discharge Characteristics of Needle-plate Electrode Plasma and Physicochemical Properties of Activated Water

作　　者：程小雨 CHENG Xiaoyu(School of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《电工技术》2025年第6期170-173,176,共5页Electric Engineering

摘　　要：由于气液两相放电制备等离子体活化水的反应过程极为复杂,因此有关放电参数对等离子体活化水理化性质的影响尚不明确。采用自制针-板电极装置制备等离子体活化水,研究了气液两相放电特性及活化水的理化特性。结果表明,随着放电电压的提升,针-板电极装置的放电模式从丝状放电过渡至火花状放电,且放电功率、能量与电压正相关。溶液的pH值随放电电压的提升而下降,电导率和氧化还原电位增加。随着活化时间的增加,这些参数的变化更为显著。当活化时间为1 min时,pH值迅速从6.87降至3.75,其后pH值下降速率开始减缓,电导率从11μS/cm增至110μS/cm,氧化还原电位从79 mA显著增至309 mA,这些数据在实际应用中具有一定的参考价值。Since the reaction process of preparing plasma-activated water by gas-liquid two-phase discharge is extremely complex,the influence of discharge parameters on the physical and chemical properties of plasma-activated water is not clear.Plasma activated water was prepared by self-made needle-plate electrode device.The discharge characteristics of gas-liquid two-phase and the physical and chemical properties of activated water were studied.The results show that with the increase of discharge voltage,the discharge mode of the needle-plate electrode device transits from filamentary discharge to spark discharge,and the discharge power and energy are positively correlated with the voltage.The pH value of the solution decreased with the increase of discharge voltage,and the conductivity and redox potential increased.With the increase of activation time,the changes of these parameters are more significant.When the activation time is 1 min,the pH value decreases rapidly from 6.87 to 3.75,and then the pH value decreases slowly.The conductivity increases from 11μS/cm to 110μS/cm,and the redox potential increases significantly from 79 mA to 309 mA.These data have certain reference value in practical applications.

关 键 词：介质阻挡放电 等离子体活化水 理化特性 放电电压 活化时间 

分 类 号：TM854[电气工程—高电压与绝缘技术]