Research On Pulse Discharge In Two-phase Mixtures Of Gas-liquid By Drainage-line-line Electrodes

The Discharge of gas-liquid two-phase mixtures applied to waste water Treatment study in recent years has been the concern of many researchers. Mainly, There are a lot of useful data in the treatment of refractory pollutants; However, there are some shortcomings. In the main regional small discharge of sewage into contact with the plasma, small water treatment was limited and does not adapt to the requirements of industrial production. In these paper, researched in the discharge reactor experiments by drainage electrode, study the Corona discharge morphological, provide a basis of large volume discharge for future research.Combining approximate analytical and FEM to calculate the electric field under different conditions. In the two-phase mixtures, the entire reactor system has become more uneven distribution of the electric field, the electric field more strength near the anode. Space water droplet distorted field, and further improve the electric field near the anode; The electric field strength depends on the form of water-viscosity on electrode, water-film and water droplets.The study of Experimental phenomenon shows that:(1)Initiation voltage of the pulse corona discharge in Gas-liquid two-phase mixtures decreased; line-line electrodes, in the two-phase mixtures, initiation voltage of the pulse corona discharge drop nearly 20% to play Halo, and line-line-line electrodes, dropped by nearly 5% halo effect. (2)Surface discharge of aerial water drops throughout the region to expand the size of the corona discharge. (3)If the water drop on the electrode was granular, strengthening the discharge; if the membrane was, weakened discharge.(4)The water droplet distribution and the discharge of water droplets effected by the way of Aerial spray, have a great impact on the discharge. The corona discharge phenomenont above were consistent with the results of electric field calculated.Research shows that the line- line star electrode structure and drainage layout, can achieve a large volume discharge; Meanwhile the competition mechanism of discharge in gas-liquid two-phase mixtures has been verified.