Device for the automatic disconnection of a control rod and a nu

Induced nuclear reactions: processes – systems – and elements – With control of reactor – By movement of control element or by release of neutron...

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376336, G21C 712

Patent

active

056065825

ABSTRACT:
The device makes it possible to automatically disconnect an absorber fuel rod cluster (6) from its control rod (5) when the pressure and/or temperature within the vessel of the reactor have dropped below a certain value.
Use is mainly made of a thermal module (35) located between the attachment head (37) and the locking member (32) in order to form a mobile assembly optionally completed by a barometric module placed beneath the locking member (32).
Application to pressurized water nuclear reactors.

REFERENCES:
patent: 3715269 (1973-02-01), Mehren
patent: 3733251 (1973-05-01), Gilbertson et al.
patent: 3905634 (1975-09-01), Johnson et al.
patent: 4713210 (1987-12-01), Germer
patent: 4734252 (1988-03-01), Bilibin
patent: 5051229 (1991-09-01), Ford et al.
Patent Abstract of Japan, No. JP 5215883, vol. 017, No. 654 (P-1653), Dec. 3, 1993.
Patent Abstract of Japan, No. 6242277, vol. 018, No. 627 (P-1834), Nov. 29, 1994.
Patent Abstract of Japan, No. JP 4320994, vol. 017, No. 153 (P-1510), Mar. 25, 1993.

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