Tube cleaner

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F - Mech Eng,Light,Heat,Weapons

28

G

251/1, 15/12.5

F28G 1/06 (2006.01)

Patent

CA 1218202

ABSTRACT The invention is concerned with a device for the internal cleaning, under operation, of the tubes of a heat exchanger containing a plurality of substantially straight tubes (1a,1b,1c) having both ends fastened to tube sheets (2), head chambers outside the tube sheets for the medium flowing through the tubes, cleaning members (26,30) in the tubes, and driving means comprising cables (27,31) and cable drums (13,14) to propel the cleaning members forward and backward in the tubes. The cleaning device is characterized in that the cleaning member is a helical spring (26,30) and that the cables (27,31) are endless cables, or cables having a limited length, which extend over the cable drums (13,14) in the head chambers (11,12). (Fig. 6)

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