The effect of high-voltage waveforms on ESP current density distributions
The effect of high-voltage waveforms on ESP current density distributions
复制标题
高压波形对ESP电流密度分布的影响
DOI：
10.1109/28.55955
复制
发表时间：
1990
影响因子：
4.4
通讯作者：
W. Piulle
中科院分区：
文献类型：
--
作者：
E. C. Landham;J. Dubard;W. Piulle
电晕电流在电除尘器极间空间的不均匀分布会降低电除尘器对高电阻率粉尘的除尘效率。通过对放电电极施加新的高压波形，可以改善电流分布。本文介绍了对燃煤电厂飞灰除尘器集尘板电流密度分布的在线测量。该除尘器采用圆丝放电电极和带刺放电电极。电流密度分布进行了比较，为三个高电压波形：常规，脉冲，和间歇放电。在波形分配电晕电流的有用值的能力与ESP的收集效率之间建立了直接关系。
The efficiency of an electrostatic precipitator (ESP) collecting high resistivity dust is degraded by maldistribution of corona current in the interelectrode space. The current distribution can be improved by applying novel high-voltage waveforms to the discharge electrodes. Online measurements are presented of collecting plate current density distributions in a precipitator collecting fly ash from a coal-fired electric generating plant. The precipitator was operated with both round-wire and barbed-strip discharge electrodes. The current density distributions are compared for three high-voltage waveforms: conventional, pulse, and intermittent energization. A direct relationship is established between the ability of the waveforms to distribute useful values of corona current and the collection efficiency of the ESP. >