正窄脉冲电参数对脉冲电晕脱硫影响的研究

On the Influence of the Electric Parameters of Positive Narrow Pulse on the Desulphurization with Pulsed Corona

基于自行研制的毫微秒级超窄脉冲电源，研究了电源放电回路参数和超窄脉冲电参数对脉冲电晕等离子体脱硫的影响．研究表明，脉冲上升时间是脉冲电源的一个主要参数，上升时间对SO2脱除影响比脉宽的影响大，增加脉冲电压上升时间和减小脉宽，都将降低脱硫量．在综合考虑脱硫效率和能量利用率的基础上，提出了优化脉冲供能对窄脉冲电参数的要求和窄脉冲电源的设计特性指标．

With the ultranarrow pulse generator of nanosecond level developed by the authors, investigations have been made on the influences of the electric parameters of the discharge circuit of the pewer source and those of the ultranarrow pulse on the plasma desulphurization with pulsed corona.The results show that the pulse risetime is a principal parameter of the pulse power source and plays a much greater role in the SO2 removal than does the pulsewidth. lncreasing the risetime or decreasing the pulsewidth of the pulse voltage would result in a reduction of the amount of SO2 removal. With both the desuiphurization efficiency and the energy field utilization taken into consideration as a whole, the requirements on the electric parameters of the narrow pulse for the optimization of pulse energization and the performance target of the design of narrow pulse power source are proposed.