Apparatus for partitioning off the core of a nuclear reactor with removable elements
AssigneeFramatome
InventorsPierre Boiron, Pierre Poitrenaud
Life of this patent
Estimating the term…
Abstract
Apparatus for partitioning off the core of a nuclear reactor constituted by a set of boxes (8, 9, 10, 11) each comprising at least two plates (12-13, 14-15, 27-29, 28-30) rigidly assembled at right angles and disposed in the longitudinal direction of the assemblies, and a plurality of transverse plates (32) perpendicular to the longitudinal plates. The boxes are removably disposed side by side inside the core casing (1), and bearing thereon. The faces of the longitudinal plates directed towards the reactor core serve as bearing faces for the assemblies. Each of the boxes is fixed to at least one of the upper or lower plates of the core by a flexible coupling allowing longitudinal displacement.
Claims9
A device for partitioning off the core of a pressurized nuclear water reactor, said reactor core being constituted by prismatic assemblies juxtaposed inside a core casing laterally bounding a space surrounding said core in which a cooling liquid circulates in the longitudinal direction of said assemblies, a transverse lower support plate and a transverse upper support plate also being disposed at either side of said core in the longitudinal direction, said device comprising
- (a) a set of boxes (8, 9, 10, 11) each including at least two plates (12-13, 14-15, 27-29, 28-30) rigidly assembled at right angles and disposed in the longitudinal direction of said assemblies (24);
- and
- (b) a plurality of transverse plates (32) perpendicular to said longitudinal plates and rigidly assembled to the latter, each of said boxes (8, 9, 10, 11) being removably disposed side by side inside the core casing (1) and bearing on said core casing without being attached thereto, so that the faces of said longitudinal plates directed towards the reactor core serve as bearing faces for said assemblies (24) disposed at the periphery of said core, each of said boxes (8, 9, 10, 11) being intercalated between said lower support plate (2) and said upper support plate (7) and fixed at its upper ends to said upper support plate by a flexible coupling (46, 47, 48) allowing each of said boxes to be displaced longitudinally.
Dependencies are inferred from the claim text.