HYDRAULIC CONTROL UNIT AND METHOD OF SHUTTING DOWN A NUCLEAR REACTOR USING THE SAME

A method of shutting down a nuclear reactor may include compressing a scram gas (208) that is in fluid communication with a scram accumulator (102,200). The scram accumulator defines a chamber therein and contains bellows within the chamber. The bellows (214) are configured to hold a scram liquid (2...

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Bibliographic Details
Main Authors MORGAN, KENNETH ALLAN, BROWN, RANDY MORRIS, CABRERA, FILEMON TECSON
Format Patent
LanguageEnglish
French
German
Published 15.06.2016
Subjects
BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
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Summary:A method of shutting down a nuclear reactor may include compressing a scram gas (208) that is in fluid communication with a scram accumulator (102,200). The scram accumulator defines a chamber therein and contains bellows within the chamber. The bellows (214) are configured to hold a scram liquid (216) in isolation of the scram gas (208). The scram gas exerts a compressive force on the bellows in a form of stored energy. The method may additionally include releasing the stored energy in response to a scram signal such that the scram gas expands into the chamber of the scram accumulator to compress the bellows and expel the scram liquid from the scram accumulator to insert control rods into a core of the nuclear reactor.
Bibliography:Application Number: EP20150198662