PURPOSE: To insert negative reactivity, moderate the progress of an accident, and stop the operation of a reactor.
CONSTITUTION: A preceding void channel 1a is provide between a plurality of core fuel assemblies 2, a thermal extending mechanism 10 is connected to the upper part of the preceding void channel 1a, and a driving shaft 11 is connected to the thermal extending mechanism 10. The preceding void channel la is formed of a heating element 8a in a wrapper tube 12, a neutron absorber material 15 inserted to the upper part of the heating element 8a, a handling head 13 connected to the upper part of the wrapper tuber 12, and an entrance nozzle 14 connected to its lower end. The thermal extending mechanism 10 has a spring between the driving shafts 11, the spring is enclosed by a bellows, and the bellows is enclosed by a double cylindrical thermosensitive part.
| JP2009036606 | NUCLEAR REACTOR |
| JP2017067771 | SYSTEMS AND METHODS FOR PROVIDING A MOLTEN SALT REACTOR |
YOKOYAMA TSUGIO
KAWAKAMI HIROTO
NAGAOKA KAZUHITO
TOSHIBA CORP