Application of DBD and DBCD in SO2 Removal

The dielectric barrier corona discharge(DBCD) in a wire-cylinder configuration and the dielectric barrier discharge(DBD) in a coaxial cylinder configuration are studied. The discharge current in DBD has a higher pulse amplitude than in DBCD. The dissipated power and the gas-gap voltage are calculated by analyzing the measured Lissajous figure. With the increasing applied voltage, the energy utilization factor for SO2 removal increases in DBCD but decreases in DBD because of the difference in their electric field distribution. Experiments of SO2 removal show that in the absence of NH3 the energy utilization factor can reach 31 g/kWh in DBCD and 39 g/kWh in DBD.     

介质阻挡电晕放电去除二氧化硫的研究

工频高压下线管结构反应器可能出现局部电晕放电及气隙中稳定阻挡放电。根据V-qLissajous图形计算了放电功率。随外施电压上升,放电由电晕放电进入稳定阻挡放电,放电电流幅值达数mA,放电功率密度为数百mW·cm-3,去除SO2的能量效率可达30g/(kW·h)。实验表明,稳定阻挡放电时,较高的电压及较大的放电空间可提高能量利用率。     

Efficiency of Removing Sulfur Dioxide in the Air by Non-Thermal Plasma Along with the Application of the Magnetic Field

1 IntroductionSO2 is one of the main hazards to human health, andit is the main component of the acidic oxides in the at-mosphere. The menace of the acidic pollution by SO2can be curtailed if it is removed from the air. In recenttime, researchers across the world have been concernedabout efficient removal of SO2.Several techniques have been applied to decompos-ing SO2 in the air in recent years. At present, themain technologies for removing sulfur dioxide include:the gas-phase reaction [1]…     

高压脉冲电源的研制及其在去除SO2的应用

高压脉冲产生的非平衡态等离子体能有效去除室内空气中的二氧化硫 ,详细介绍了一种小型化高压脉冲电源及其去除二氧化硫的机理。并通过对实验数据的分析讨论影响去除效率的因素 ,如 :脉冲电压的极性、峰值电压以及放电电极的特性等     

室内空气净化用高压窄脉冲电源的研究

介绍了目前国际上较先进的低温非平衡态等离子体空气净化技术。开发的两种产生低温非平衡态等离子体的电源具有成本低、体积小等优点,适用于室内空气净化。讨论了一些影响放电电压大小及频率的电源参数,如供电电压、控制信号占空比、振荡电路的电阻和电容等。     

半导体冷藏箱冷藏温度故障分析与修复

本文采用冷却速度试验、温度回升试验对BC-35A半导体冷藏箱进行了故障分析。结果表明,半导体冷藏箱冷藏温度不合格的主要原因是制冷片的导热硅脂粘贴不牢固,并通过更换半导体制冷片对故障冰箱进行了修复。     

低温等离子体去除空气中NO2技术的研究

用针—板电极实验研究了影响脉冲放电等离子体去除NO2效率的主要因素:正脉冲电压的去除效率远高 于负脉冲;脉冲峰值电压越高效率越高;随着NO2初始质量浓度的增加,去除效率呈现为先增后减的非单调曲线。 还首次研究了磁场对NO2去除效率的影响及其规律,实验表明磁场能有效提高NO2的去除效率。     

食具消毒柜产品常见质量问题分析

1、产品概况与分析食具消毒柜是通过高温、臭氧、紫外线等方式对食具进行消毒的厨房电器。随着人们的生活水平不断提高,食具消毒柜在家庭中的使用频率也越来越高。按照消毒的方式不同,食具消毒柜可分为电热消毒柜、臭氧消毒柜、紫外线消毒柜以     

低温非平衡态等离子体室内空气净化器电源的研制

开发了两种低温非平衡态等离子体发生电源,具有成本低、体积小等优点,适用于将室内空气净化。对影响放电电压大小及频率的电源参数进行了讨论,如供电电压、控制信号占空比、振荡电路的R和C等。