Method for removing tubes from a tubesheet

Details Method for removing tubes from a tubesheet Method for removing tubes from a tubesheet

1978-10-17

1980-01-22

Mehr, Milton S.

Metal working

Method of mechanical manufacture

Shaping mating parts for reassembly in different positions

29280, 29282, 279 2R, 29255, B23P 1902

Patent

active

041842430

ABSTRACT:
A method for removing a tube from an opening in a tubesheet in which a containment plug is placed in the tube at a predetermined distance from the end of the tube and a granular material is placed into a portion of the tube between the plug and the latter tube end. A push rod is applied through the tube end and to said granular material to apply a force to the granular material against the plug to cause the granular material to exert a shear force on the inner wall of the tube of a magnitude to push the tube from the tubesheet opening.

REFERENCES:
patent: 1879663 (1932-09-01), Dreyer
patent: 3057631 (1962-10-01), Fleur
patent: 3341930 (1967-09-01), Belanger
patent: 3900939 (1975-08-01), Greacen
patent: 4068372 (1978-01-01), Kamohara et al.
patent: 4104775 (1978-08-01), Lawless

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