Sootblower feed and lance tube structure with improved...

Details Sootblower feed and lance tube structure with improved... Sootblower feed and lance tube structure with improved...

F - Mech Eng,Light,Heat,Weapons

23

J

122/9

F23J 3/02 (2006.01) F28G 1/16 (2006.01)

Patent

CA 1170131

ABSTRACT OF THE DISCLOSURE The feed tube of a long retracting sootblower has a lance tube slidably overfitted thereon which is of an inside diameter somewhat exceeding the outside diameter of the feed tube, to provide a relatively narrow gap therebetween. The open end of the feed tube has a turbu- lizer mounted therein contoured to impart a helical com- ponent to the blowing fluid which flows into the lance tube from the feed tube. At a position spaced upstream from the turbulizer the wall of the feet tube is pierced with a plurality of holes equally spaced throughout its periphery. The holes provide centering jets which oppose vibration of the feed tube and prevent impacting of the same against the interior of the lance tube.

397027

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