Patent ID: 6782902
Filing Date: 2004-08-31
Classification: B05B,F23J,F28G

Abstract:
A long retracting sootblower device for conducting a plurality of cleaning media types to an interior of a heat exchanger, the sootblower device having a lance tube assembly, a feed tube, a carriage assembly for moving the lance tube assembly relative to the feed tube, a first cleaning media supply, and a second cleaning media supply, wherein said lance tube assembly comprises:a hub assembly in fluid communication with said first cleaning media supply, a tube section extending outward from said hub; a nozzle assembly mounted to a distal end of said tube section, said nozzle assembly including one or more nozzles adapted for directing a stream of cleaning media into the narrow passages of said heat exchanger; said hub assembly including at least one cylindrical tube with a first end and a second end, said first end of said cylindrical tube being mounted to said hub assembly, and said second end of said cylindrical tube engaging said nozzle assembly, said hub assembly and said cylindrical tube defining a first high pressure passage for conducting cleaning media from said first cleaning media supply to said nozzle assembly; and said hub assembly further including a shield assembly for supporting said cylindrical tube within said tube section.