Fast reactor

G - Physics – 21 – C

Patent

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Details

G21C 1/02 (2006.01) G21C 15/02 (2006.01)

Patent

CA 2759865

A fast reactor (1) comprises a reactor vessel (7) containing a core (2) and a primary coolant (21), a core support (13) which is arranged in the reactor vessel (7) and supports the core (2) from below, and a bulkhead (6) which is arranged above the core support (13) and extends upward while laterally surrounding the core (2). An intermediate heat exchanger (15) which cools the primary coolant (21) and an electromagnetic pump (14) which pressurizes the cooled primary coolant (21) are arranged between the inner surface of the reactor vessel (7) and the bulkhead (6). A neutron shield (8) supported by an upper supporting plate (29) from above is arranged below the electromagnetic pump (14). The upper supporting plate (29) is provided with an opening (29a), and a coolant guide mechanism (17) which guides the pressurized primary coolant (21) from the electromagnetic pump (14) to the neutron shield (8) side through the opening (29a) of the upper supporting plate (29) is provided between the electromagnetic pump outlet (14b) and the upper supporting plate (29).

L'invention porte sur un réacteur rapide (1), qui comprend une cuve de réacteur (7) contenant un cur (2) et un caloporteur primaire (21), un support de cur (13) qui est disposé dans la cuve de réacteur (7) et qui supporte le cur (2) à partir du dessous, et une cloison (6) qui est disposée au-dessus du support de cur (13) et s'étend vers le haut tout en entourant latéralement le cur (2). Un échangeur de chaleur intermédiaire (15) qui refroidit le caloporteur primaire (21) et une pompe électromagnétique (14) qui pressurise le caloporteur primaire refroidi (21) sont disposés entre la surface interne de la cuve de réacteur (7) et la cloison (6). Une protection neutronique (8) supportée par une plaque de support supérieure (29) à partir du dessus est disposée en dessous de la pompe électromagnétique (14). La plaque de support supérieure (29) comporte une ouverture (29a), et un mécanisme de guidage de caloporteur (17) qui guide le caloporteur primaire pressurisé (21) de la pompe électromagnétique (14) au côté protection neutronique (8) à travers l'ouverture (29a) de la plaque de support supérieure (29) et disposé entre la sortie de pompe électromagnétique (14b) et la plaque de support supérieure (29).

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