Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1981-03-12
1982-11-16
Nozick, Bernard
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55302, 55521, 55324, 55DIG37, 55 96, B01D 4604
Patent
active
043593305
ABSTRACT:
An air cleaning method and apparatus is disclosed in several embodiments. In one set of embodiments, there is described an air cleaning method and apparatus in which air to be cleaned is drawn toward and through a filter in a particular direction. Periodically, reverse pulses of air are directed through the filter in a direction opposite to normal flow to interrupt the flow of air and to dislodge collected particles from the uncleaned air side of the filter and to enable migration of the particles toward the downstream lower end of the filter.
In accordance with other embodiments of the present invention, there is described the addition of inertial precleaner devices located proximate the unfiltered side of each filter for inertially separating heavy particulate matter from the uncleaned air prior to filtration. In addition, the inertial precleaner devices may have closure means operable during the periodic reverse pulse cleaning to remove the dislodged collected particles and prevent reentrainment on the filter.
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American Air Filter EC-1-115B "Pulse-Clean: Air Filters for Turbine Intake Applications".
Donaldson Gas Turbine Product News, Bulletin 3000-9 (1974) and Bulletin 1200-239 (1974), "Slim Vee Pac-2, Non-Stop Protection for Locomotive Engines".
Donaldson & Company, Inc.
Nozick Bernard
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