| 摘要 |
1,184,305. Reactor fuelling arrangements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 June, 1968 [7 June, 19671, No. 26963/68. Heading G6C. In a storage coffin for a spent nuclear assembly the assembly is immersed in liquid sodium which is circulated by an electromagnetic pump. In the latter, a thermocouple generates an electric current in the sodium which reacts with a magnetic field to provide the pumping action. In the pump, the struts 2, 3 connect the radiator 4 with the sodium duct 1. The struts are of iron and constantin respectively and generate a current in the sodium due to the temperature difference between 1 and 4. The permanent magnets 5, 6 cause the liquid sodium to be circulated along the duct. The pump is mounted beneath the cell 16 to which it is coupled by the ducts 1 and the sodium circulates in the annular chamber 17 downwards through the fuel assembly 15. The heat released from 15 is transferred by the liquid metal to the walls of 16, from which it is dissipated by heat exchange with the surrounding atmosphere.
|
