| US 7,585,343 B2 | ||
| Filter cleaning system and method | ||
| Jack Thomas Clements, Lee's Summit, Mo. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Oct. 25, 2006, as Appl. No. 11/586,032. | ||
| Application 11/586032 is a continuation in part of application No. 11/493237, filed on Jul. 26, 2006. | ||
| Prior Publication US 2008/0022856 A1, Jan. 31, 2008 | ||
| Int. Cl. B01D 46/04 (2006.01) | ||
| U.S. Cl. 55—302 [95/280] | 19 Claims |
| 1. A cleaning system for use with a filter mounted to a tubesheet and in which the filter has an upstream side where particulates
are separated from a fluid stream passing through the filter and collected and a downstream side that is substantially free
of the particulates, the cleaning system comprising:
a blowpipe for supplying a pressurized fluid and having an opening therein;
a one-piece nozzle made from a tubular member having a substantially constant cross-section extending along the length of
the member, the nozzle being attached to the blowpipe at a first end portion adjacent the opening in the blowpipe, the nozzle
in fluid communication with the blowpipe to provide a cleaning pulse of the pressurized fluid from a second opposite end portion
of the nozzle to the downstream side of the filter to dislodge particulates from the upstream side; and
an aspirator formed in the first end portion of the nozzle at an upstream location spaced from the second end portion of the
nozzle, the aspirator enabling an additional volume of fluid to be delivered from the second end portion of the nozzle than
is delivered from the opening in blowpipe, at least a portion of the aspirator located along the nozzle upstream of the opening
in the blowpipe.
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