| 摘要 |
A resistive anode for use in a corona discharge device principally in the charging stage or collecting stage of a two-stage electrostatic precipitator, or in a single stage electrostatic precipitator. The resistive anode suppresses, i.e. lessens the severity of, back corona and prevents sparkover being produced by dielectric breakdown of particle layers which normally build up on the anode. The resistive anode is formed by a conductive electrode covered with a coating of resistive material having a primary layer of at least 0.25 mm thick in which the material has a high dielectric strength, is homogeneous within specified limits and has a predetermined resistivity. A resistive anode of this construction may be employed in a variety of electrode designs including conventional wire-plate and wire-cylinder configuration, as well as in high intensity ionizers utilizing a planar discharge electrode concentrically mounted in a tubular anode.
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