Optimal Design For Pulsed Corona Discharge Plasma Reactor

Pulsed corona discharge plasma technology has been a hot method because of its advantages,such as little investment,little floor area,high-activity treatment and so on.As a part of key components of pulsed corona discharge plasma, plasma reactor played an important role of offering regular service and efficiency treatment. Two aspects were researched in this paper: distribution of electric-field intensity and hydraulic calculation of the plasma reactors.From the perspective of the electric-field intensity analysis, the results obtained as follows: Different reactors, different distributions of electric-field intensity. Distributions of electric-field intensity in areas investigeatd linked with radius of electrodes, distance between high-voltage electrodes, and distance between the high-voltage electrode and the low-voltage electrode. Specifically,for the needle-plate electrode reactor,intensive discharge area apeared nearby its tip, and distributions of electric-field intensity in areas investigeatd had rapid attenuation.For the line-line electrode reactor, its distributions of electric-field intensity increased when the radius of high-voltage electrode reduced.And there is an appropriat value for the maximization of electric-field intensity of the low-voltage electrode.For the line-plate electrode reactor,its distributionsof electric-field intensity increased when the distance between high-voltage electrode and low-voltage electrode reduced.Distribution of electric-field intensity of cylinder reactor is most homogeneous,and hexagonal reactor's is similar with it.If it's length of side belongs to a certain range (a=20~30), hexagonal reactor can replace cylinder reactor to treat the pollution.From the perspective of hydraulic calculation, we can infer that bigger the pipe diameter, less pressure lose.And there was no obivious distinctiveness with pressure lose for the cylinder reactor and the hexagonal reactor.Combining the above contents and the actual situation, conclusions are given that the hexagonal honeycomb-shape reactor (length is 28.9mm) is suitable one that is worthy for further study.