Flexible tube cleaning lance positioner apparatus
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United States of America Patent
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Oct 20, 2020
Grant Date -
Sep 20, 2018
app pub date -
Mar 19, 2018
filing date -
Mar 20, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A system and an apparatus for positioning a plurality of flexible cleaning lances includes a frame removably fastened parallel to a row of tubes in a tube sheet within a domed end of a heat exchanger. A chassis support member is mounted on the frame for movement in an X direction. A chassis having spaced apart parallel box rail members is movably mounted on the chassis support member for movement of the chassis in a Y direction. A rotary arm extends from the chassis, and a flexible lance guide hand fastened to a distal end of the rotary arm is configured to maintain a plurality of flexible lance guide tubes in parallel alignment with the row of tubes irrespective of an angle between the rotary arm and the frame. The system may include a lance drive and a snout connected between the lance drive and the positioning apparatus.
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