| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent fine powder and the like generated by frictional contact of a heating element and porous bodies, from being included in superheated steam without degrading heat efficiency, startability, controllability and responsiveness of a superheated steam generating device.SOLUTION: A superheated steam generating device supplies water (W) to hollow sections (7) of porous bodies by capillary action of porous bodies (40, 41). The porous bodies are composed of the first porous body (40) absorbing water, and the second porous body (41) disposed inside of the first porous body. The superheated steam generating device evaporates and superheats the water at pore outlet sections of the porous bodies by a heating element (42) kept into contact with an inner wall surface (46) of the hollow section, to generate superheated steam (S). The second porous body has spalling resistance and heat conductivity higher than those of the first porous body. |
