Apparatus for assembling fin plate heat exchangers

Details Apparatus for assembling fin plate heat exchangers Apparatus for assembling fin plate heat exchangers

B - Operations, Transporting

23

P

26/82

B23P 15/26 (2006.01) B21D 53/08 (2006.01) B23P 19/02 (2006.01)

Patent

CA 1240489

Apparatus for Assembling Plate Fin Heat Exchangers Abstract of the Disclosure A method and apparatus for automatically assembling hairpin tubes in the tube receiving holes of a fin pack unit. Pre-assembled fin pack units are serially moved from one station to the next to receive hairpin tubes, to have bells formed in the open ends of the laced hairpin tubes, to have expansion tools inserted upwardly through the open ends of the hairpin tubes to expand the walls of the tubes outwardly into contact against the fin plates and tube sheets with suf- ficient force to lock the tubes into the unit, and to have return bends interconnect the bell-like seats of adjacent hair- pin tubes and thus complete the heat exchanger flow circuit.

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