| 简介 |
PROBLEM TO BE SOLVED : To provide an electric dust collector that prevents spark discharge and enables enhancement of dust collection performance and reduction in the size in the electric dust collector used for air cleaning.
SOLUTION : A plurality of discharge electrodes 3 formed by arranging a plurality of needles 2 in a row at intervals and a plurality of semiconductive ground plates 4 each opposing to the discharge electrode 3 in parallel leaving a fixed distance and connected to an earth are disposed alternately. A metallic member 9 having openings is disposed in a direction vertical to a wind flowing direction, is disposed in a tip direction of the needle 2 of the discharge electrode 3 outside the ground plate 4 and is connected to the earth. This configuration can prevent spark discharge while generating corona discharge, and improve charge efficiency when particles are charged, so as to enable enhancement of dust collection performance and reduction in the size.
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