Device for extracting a nuclear fuel rod or a cluster rod and extraction method using such an extraction device
AssigneeFramatome
InventorsSerge Roillet, Jacques Gauthier, Alexis Righetti
Life of this patent
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Abstract
An extraction device for extracting a nuclear fuel rod or a cluster rod comprises an attachment portion configured to be inserted into a sleeve of the rod through an end without an end plug, and a grip portion, the attachment portion comprising an elongated body along a longitudinal axis and at least one tooth projecting from the body, the or each tooth being configured to allow the attachment portion to be forcibly inserted into the sleeve axially, and to engage with the inner surface of the sleeve so as to prevent the attachment portion from being extracted from the sleeve.
Claims16
A device for extracting a nuclear fuel rod or a cluster rod, the extraction device comprising:
- an attachment portion configured to be inserted into a sleeve of the rod through an end deprived of an end plug;
- and
- a grip portion, the attachment portion comprising an elongated body along a longitudinal axis and at least one tooth projecting from the body, the or each tooth being configured to allow the attachment portion to be forcibly inserted into the sleeve axially, and to engage with an inner surface of the sleeve so as to prevent the extraction of the attachment portion from the sleeve;
- the attachment portion comprising at least one blade having a plurality of arms each forming a respective tooth,
- the attachment portion comprising a plurality of blades axially spaced along the body, according to regular or irregular distribution.
A device for extracting a nuclear fuel rod or a cluster rod, the extraction device comprising:
- an attachment portion configured to be inserted into a sleeve of the rod through an end deprived of an end plug;
- and
- a grip portion, the attachment portion comprising an elongated body along a longitudinal axis and at least one tooth projecting from the body, the or each tooth being configured to allow the attachment portion to be forcibly inserted into the sleeve axially, and to engage with an inner surface of the sleeve so as to prevent the extraction of the attachment portion from the sleeve;
- attachment portion comprising at least one blade having a plurality of arms each forming a respective tooth,
- the body comprising a plurality of axial sections stacked axially alternating with blades.
Dependencies are inferred from the claim text.