CONTROL ROD/CONTROL ROD DRIVE MECHANISM COUPLINGS

CONTROL ROD/CONTROL ROD DRIVE MECHANISM COUPLINGS

A nuclear reactor includes a pressure vessel (10), and a control rod assembly including at least one movable control rod (18) comprising a neutron absorbing material, a control rod drive mechanism (CRDM) (14) for controlling movement of the at least one control rod, and a coupling operatively connec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHARGOTS, Scott, J, MCLAUGHLIN, John, P, DESANTIS, Paul, K, ALES, Mathew, W
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Beschreibung
Zusammenfassung:A nuclear reactor includes a pressure vessel (10), and a control rod assembly including at least one movable control rod (18) comprising a neutron absorbing material, a control rod drive mechanism (CRDM) (14) for controlling movement of the at least one control rod, and a coupling operatively connecting the at least one control rod and the CRDM. The coupling includes a first portion comprising a first material having a first density at room temperature, and a second portion comprising a second material having a second density at room temperature that is greater than the first density. In some embodiments the coupling includes a connecting rod (30) including a hollow or partially hollow connecting rod tube (90) comprising a first material having a first density and a filler (92) disposed in the hollow or partially hollow connecting rod tube, the filler comprising a second material having a second density greater than the first density.