| 摘要 |
PURPOSE: A heating method and device for vaporizing sodium in a vacuum chamber using the sodium is provided to enable heating to be rapidly and stably performed using low power consumption and a narrow heat transfer area. CONSTITUTION: In a state the inside of a vacuum cylinder, into which natrium is added, becomes vacuum, the cylinder is gradually heated to a temperature of 200°C through a heat transfer unit to change solid natrium to liquid natrium, and inert gas is discharged at the same time(S100). The temperature of the liquid natrium increases, and the remaining inert gas is completely removed(S110). The inside of the inert-gas-removed cylinder becomes vacuum and is heated, and thus a stable evaporation action is introduced through the raise of an inner pressure (S120). If the liquid natrium is evaporated, then the vacuum state is kept, and stable heat radiating of 650-840°C is maintained by the phase change of the natrium(S130). |
