Electrostatic precipitator

Details Electrostatic precipitator Electrostatic precipitator

1987-01-12

1988-05-03

Prunner, Kathleen J.

Gas separation

Means within gas stream for conducting concentrate to collector

55146, 55152, 55154, 55DIG30, B03C 380

Patent

active

047417463

ABSTRACT:
An improved exhaust gas particulate removal system is described which includes a corona-charger that is spark-plug like in configuration. The charger includes a central electrode held within an insulating body, a portion of which electrode is recessed in a cavity formed in the insulating body. A very small amount of clean gas is introduced into the cavity in a manner so as to create a spiral vortex flow about the electrode. The swirling gas flow creates an over-pressure which prevents the exhaust particulate matter from depositing on either the needle electrode or the walls of the cavity. Another swirling air flow, surrounding the exterior of the insulating body, is also provided to prevent the formation of a continuous layer of soot deposit thereupon, with the aid of a cylindrical baffle. The charger is juxtaposed to a conductive attractor electrode to create the desired corona for particulate charging and the path of the exhaust flow is passed between the charger and attractor electrodes.

REFERENCES:
patent: 617618 (1899-01-01), Thwaite
patent: 1931436 (1933-10-01), Deutsch
patent: 1994259 (1935-03-01), Thorne
patent: 3238702 (1966-03-01), De Seversky
patent: 3331192 (1967-07-01), Peterson
patent: 3526828 (1970-09-01), Whitby
patent: 3740925 (1973-06-01), Gothard
patent: 3768258 (1973-10-01), Smith et al.
patent: 4406119 (1983-09-01), Kamiya et al.

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