Assembly for passage through a containment slab for transferring irradiated nuclear fuel
AssigneeCommissariat a l'Energie Atomique
InventorsMichel Aubert, Antoine Bret
Life of this patent
Estimating the term…
Abstract
The invention relates to an assembly for passage through a containment slab for transferring irradiated nuclear fuel, comprising a sleeve passing through the slab and fast therewith and a guide ramp passing through the sleeve and in which moves a handling pot carrying the fuel, wherein said assembly further comprises a device for evacuating the residual heat dissipated by the fuel, this device comprising a bundle of caloducts disposed parallel to the ramp over a length at least equal to that of the sleeve, and means for evacuating the flow of heat directed above the slab by the caloducts.
Claims11
In an assembly for passage through a containment slab for transferring irradiated nuclear fuel, comprising a sleeve passing through and fast with the slab and a guide ramp passing through the sleeve and in which moves a handling pot carrying the fuel, a device is provided for evacuating the residual heat dissipated by the fuel, said device comprising a bundle of tubular caloducts disposed parallel to said ramp and extending over a length at least equal to that of said sleeve, each tubular caloduct being closed and filled with a heat-transfer fluid which is in liquid phase in a lower part of the caloduct and in gaseous phase in a top part of the caloduct, said device further comprising a cooling fluid circulating at least by natural convection around said top part of the caloducts, said top part of said caloducts being located above said slab.
Dependencies are inferred from the claim text.