Commissariat a L'energie Atomique

Jacqui Buret

Albert Allain

Andre Plagnard

Paraseismic device for a handling hood of a nuclear reactor, comprising an enclosure with a vertical axis connected to a lock communicating with a passage provided in a slab located in the upper part of the reactor. According to the invention the device comprises, mounted between enclosure and lock, an elastic joint permitting the enclosure to perform a gimballing movement around a center located on the vertical axis of the lock, and regulatable tension tie attachment means disposed between the hood and the slab and distributed regularly about the vertical axis, each of said means having an attachment point on the hood disposed in the vicinity of a horizontal plane passing through the center of the ball and socket joint. Application to any power or experimental reactor.

Paraseismic device for the handling hood of a nuclear reactor

Two guide ramps for the transfer of fuel assemblies in sliding motion between the reactor core and an external storage container are surmounted by a lock-chamber in which two pivotally suspended rectilinear rail sections carried by a revolving unit form guide ramp extensions. Each rail section has a lever extension in cooperating relation with a rocking system for displaying the rail section in swinging motion from an inclined position in the line of extenson of one of the guide ramps to the vertical position and conversely.

Device for the charge and discharge of nuclear reaction fuel assemblies

Two carriages which can be displaced independently of each other in vertical translational motion are guided by means of slideways secured to a rotatable vertical body, the upper end of which passes through the rotating shield plug of the reactor. Each carriage has a horizontal arm and grab for handling fuel assemblies, the arms being maintained parallel to each other.

Growing community of inventors

Saulx-les-Chartreux, France

Jacqui Buret