FERNBEDIENBARES WERKZEUG ZUM SETZEN UND ENTFERNEN EINES PFROPFENS IN EINEM DAMPFERZEUGERROHR.

摘要

The device comprises a handling arm (21) arranged inside the water box of the steam generator and permitting the assembly for fitting and withdrawing a plug (22) to be placed in the alignment of the tubes of the steam generator bundle. The device additionally comprises an endless screw (35) for moving the tubes in the axial direction, which is fastened to the handling arm (21), a support (44) fastened to the endless screw (35), movable in the axial direction, a linking member (51) carried by the support (44) for removable fastening to the plug body, and a sliding rod (55) actuated by a jack integral with the support (44). The rod (55) actuated by the jack permits, a thrust to be exerted on the plug held by the connecting member (51), in order to produce its extension and facilitate its withdrawal.