Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor

GPHYSICS G21Nuclear engineering G21CNUCLEAR REACTORS

G21C19/00Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor

G21C19/02Details of handling arrangements G21C19/04Means for controlling flow of coolant over objects being handled Means for controlling flow of coolant through channel being serviced G21C19/06Magazines for holding fuel elements or control elements G21C19/065Rotatable magazines G21C19/07Storage racks Storage pools G21C19/08Means for heating fuel elements before introduction into the core Means for heating or cooling fuel elements after removal from the core G21C19/10Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements G21C19/105with grasping or spreading coupling elements G21C19/11with revolving coupling elements G21C19/115with latching devices and ball couplings G21C19/12Arrangements for exerting direct hydraulic or pneumatic force on fuel element or on control element G21C19/14characterised by their adaptation for use with horizontal channels in the reactor core G21C19/16Articulated or telescopic chutes or tubes for connection to channels in the reactor core G21C19/18Apparatus for bringing fuel elements to the reactor charge area G21C19/19Reactor parts specifically adapted to facilitate handling G21C19/20Arrangements for introducing objects into the pressure vessel Arrangements for handling objects within the pressure vessel Arrangements for removing objects from the pressure vessel G21C19/202Arrangements for handling ball-form G21C19/205Interchanging of fuel elements in the core G21C19/207Assembling, maintenance or repair of reactor components G21C19/22Arrangements for obtaining access to the interior of a pressure vessel whilst the reactor is operating G21C19/24by using an auxiliary vessel which is temporarily sealed to the pressure vessel G21C19/26Arrangements for removing jammed or damaged fuel elements or control elements Arrangements for moving broken parts thereof G21C19/28Arrangements for introducing fluent material into the reactor core Arrangements for removing fluent material from the reactor core G21C19/30with continuous purification of circulating fluent material G21C19/303specially adapted for gases G21C19/307specially adapted for liquids G21C19/31for molten metals G21C19/313using cold traps G21C19/317Recombination devices for radiolytic dissociation products G21C19/32Apparatus for removing radioactive objects or materials from the reactor discharge area G21C19/34Apparatus or processes for dismantling nuclear fuel G21C19/36Mechanical means only G21C19/365Removing cannings or casings from fuel G21C19/37by separating into pieces both the canning or the casing and the fuel element G21C19/375Compacting devices G21C19/38Chemical means only G21C19/40Arrangements for preventing occurrence of critical conditions G21C19/42Reprocessing of irradiated fuel G21C19/44of irradiated solid fuel G21C19/46Aqueous processes G21C19/48Non-aqueous processes G21C19/50of irradiated fluid fuel