公开(公告)号：US20180266777A1

公开(公告)日：2018-09-20

申请号：US15925552

申请日：2018-03-19

Applicant: STONEAGE, INC.

Inventor： John L. Krauser ,  Jeffery R. Barnes ,  Cody R. Montoya

IPC: F28G15/08 ,  F28G15/02 ,  F16L3/10 ,  F16L3/223 ,  F28G15/04 ,  B08B3/02 ,  B08B9/032

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.