Method and apparatus for detecting back corona in an electrostat

Details Method and apparatus for detecting back corona in an electrostat Method and apparatus for detecting back corona in an electrostat

1987-11-12

1990-06-26

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55105, B03C 300

Patent

active

049368761

ABSTRACT:
In an electrostatic precipitator for cleansing flue gases from industrial plants, comprising one or more precipitator sections powered from a separate continuous or intermittent DC-voltage electric supplies, a method and apparatus for detecting back corona, i.e. discharges in the dust layer precipitated on the collecting electrodes of an emission electrode system during the cleansing process, by making periodic upward adjustment of the precipitator current for each DC-voltage supply until spark-over occurs, and where after spark-over or a blocking of the precipitator current for a predetermined period of time if no spark-over occurs, the minimum value of the precipitator voltage is compared wtih the minimum value before the spark-over or before the blocking period, the latter minimum value being corrected by means of a predetermined sensitivity factor. In this way a measurement may be made for each single sparks-over so that the reducing effect of the spark-over on the degree of purification may be avoided at the next sparks-over.

REFERENCES:
patent: 2897914 (1959-08-01), Camp et al.
patent: 2943697 (1960-07-01), Little
patent: 3504479 (1970-04-01), Coe, Jr.
patent: 3873282 (1975-03-01), Finch
patent: 4354152 (1982-10-01), Herklotz et al.
patent: 4382805 (1983-05-01), Herklotz et al.
patent: 4410849 (1983-10-01), Ando
patent: 4432061 (1984-02-01), Herklotz et al.
patent: 4433281 (1984-02-01), Herklotz et al.
patent: 4680036 (1987-07-01), Leussler

Affiliated with

Also associated with

Rating

Method and apparatus for detecting back corona in an electrostat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting back corona in an electrostat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting back corona in an electrostat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1123380