| 摘要 |
<p>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).</p> |
