FIELD: power engineering.
SUBSTANCE: invention relates to nuclear reactor (1). Reactor comprises housing (2), closed from above by radially external fixed closing structure (3) and radially internal movable closing structure (4) and containing active zone (5), immersed in primary cooling fluid (F) and containing fuel elements (11) and control and disconnection rods (18), and hydraulic separating structure (6), separating hot header (7) and cold header (8), in which primary fluid (F) circulates. At that, control rods (18a) and disconnection rods (18b, 18c) are inserted into corresponding passages (19a, 19b, 19c) of fixed closing structure (3) and, therefore, are located radially outside the movable closing structure (4) and outside upper part (17) of separating structure (6), comprising the corresponding fuel cell (12) heads (15).
EFFECT: technical result is higher reliability of reactor.
6 cl, 8 dwg
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