High performance electrostatic precipitator
First Claim
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1. System for charging particulates or aerosols comprising:
- a corona electrode spaced apart from an outer electrode forming a gap therebetween;
circuitry for establishing a DC field in the gap, the DC field having a strength selected both to generate ions and to move the ions across the gap; and
at least one non-ion-emitting AC electrode disposed in the gap to generate high frequency AC electric fields in the gap.
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Abstract
Electrostatic system is for optimal charging of aerosols and particulates. In order to improve their collection, the system uses a combination of DC field and AC fields produced by multiple AC electrodes. The system minimizes the size and power consumption of the device, as well as increasing the collection efficiency.
29 Citations
19 Claims
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1. System for charging particulates or aerosols comprising:
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a corona electrode spaced apart from an outer electrode forming a gap therebetween; circuitry for establishing a DC field in the gap, the DC field having a strength selected both to generate ions and to move the ions across the gap; and at least one non-ion-emitting AC electrode disposed in the gap to generate high frequency AC electric fields in the gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Electrostatic precipitator comprising:
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a charging stage having a corona electrode spaced apart from an outer electrode forming a gap therebetween; circuitry for establishing a DC field in the gap, the DC field having a strength selected both to generate ions and to move the ions across the gap; at least one non-ion-emitting AC electrode disposed in the gap to generate high frequency AC electric fields in the gap; and a collection stage for collecting the particulates or aerosols charged in the charging stage. - View Dependent Claims (13)
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14. System for agglomerating particulates or aerosols comprising:
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a first particulate laden stream charged to a polarity; a second particulate laden stream charged to the opposite polarity; at least one non-ion-emitting AC electrode disposed to generate a high frequency AC electric field, the field having a strength selected to move large aerosols in the first and second streams across a volume while minimizing collection on the at least one electrode, the motion of large particulates agglomerating smaller opposite charged particulates. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification