ENHANCED DEVICE FOR PIERCING PLUGS IN A STEAM GENERATOR

摘要

An enhancing device for piercing plugs in a steam generator is provided. The enhancing device includes a main body, and a bit, borne by the main body and extending along a longitudinal axis. The bit may be driven into rotation around its longitudinal axis, in order to perform an action for piercing a plug. The device includes a hollow tubular element, extending along the longitudinal axis, while surrounding the bit and coaxially with this bit, the tubular element including an outer surface having a screwing thread, intended to be screwed onto the plug prior to the piercing. The tubular element may be driven into rotation around the longitudinal axis, independently of the rotation of the bit.

主权项

1. A piercing device for piercing plugs in a steam generator comprising:
a main body, a bit borne by the main body, the bit extending along a longitudinal axis, the bit being drivable into rotation around a longitudinal axis in order to perform an action for piercing a plug; and a hollow tubular element extending along the longitudinal axis by surrounding the bit and being arranged coaxially with the bit, the hollow tubular element including an outer surface having a screwing thread for screwing onto the plug prior to piercing, the hollow tubular element being drivable into rotation around the longitudinal axis independently of the rotation of the bit.