Dust-proof performance of bipolar electrostatic ionizer

Abstract

This study experimentally investigated the dust-proof performance of a bipolar electrostatic ionizer. A circulating-type dust testing apparatus and talcum powder with a middle particle diameter of 6 µm were used in this study. Compressed air was supplied to the bipolar ionizer, with pressure in the range of 0.01 to 0.05 MPa. The test time for each test was 1800 s. The results show that talcum powder did not enter the inner parts of the ionizer under all test conditions. It was also confirmed that the ion-generating ability was the same before and after testing the dust-proof performance.