Device for control of the core of a nuclear reactor

Details Device for control of the core of a nuclear reactor Device for control of the core of a nuclear reactor

1985-01-30

1987-12-29

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

376209, 376228, 376230, 376235, G21C 712

Patent

active

047160080

ABSTRACT:
A control device for a PWR includes a plurality of clusters arranged for insertion into and removal from the core and each having a plurality of rods connected to a common carrier vertically slidable in a stationary guide structure and connectable to a drive shaft. First clusters contain neutron absorbing material and are each individually associated with electromagnetic actuation means for adjusting the amount of insertion of the associated one of the first clusters. Second clusters contain a different material and are each individually associated with hydraulic actuation means controllable to cause upward and downward movement. A set of one first cluster and one second cluster is associated with some of said fuel assemblies, with the drive shafts of the two clusters in each set being arranged symmetrically with respect to the axis of a single stationary structure located above the associated fuel assembly and arranged for authorizing mutually independent movement of the first and second clusters.

REFERENCES:
patent: 3940311 (1976-02-01), Frisch et al.
patent: 4544521 (1985-10-01), Millot et al.

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