Device and method for underwater repair of hole of a nuclear reactor part
AssigneeFramatome
InventorsSerge ROILLET, Julien VALERO
Life of this patent
Estimating the term…
Abstract
A repair device for underwater repair of a hole in a nuclear reactor part includes a holder (32), a cutting tool (22) held by the holder (32) and having at least one cutting tooth (70) for remachining an inner surface of the hole. The cutting tool (22) has a suction channel (44) extending into the cutting tool (22) between at least one inlet opening (46) and at least one outlet opening (48), a drive shaft (34) for rotating the cutting tool (22), the drive shaft (34) being held by the holder (32), and a suction tube (36) connected to the holder (32) and fluidly connected to the outlet opening (48) of the suction channel (44).
Claims21
1-20. (canceled)
A repair device for the underwater repair of a hole of a nuclear reactor part by remachining the hole, the repair device comprising:
- a holder;
- a cutting tool held by the holder and having at least one cutting tooth for remachining an inner surface of the hole, the cutting tool having a suction channel extending into the cutting tool between at least one inlet opening and at least one outlet opening;
- a drive shaft for rotating the cutting tool, the drive shaft being held by the holder;
- and
- a suction tube connected to the holder and fluidly connected to the outlet opening of the suction channel.
A repair method for underwater repair of a damaged hole of a nuclear reactor part, the repair method comprising:
- re-machining an inner surface of the hole using a repair device comprising a cutting tool having a suction channel extending inside the cutting tool between at least one inlet opening and at least one outlet opening, to suction shavings generated by the cutting tool, without exceeding maximum design dimensions of the hole.
A cutting tool for machining the inner surface of a hole of a nuclear reactor part, the cutting tool comprising:
- a suction extending inside the cutting tool between at least one inlet opening and at least one outlet opening.
Dependencies are inferred from the claim text.