| 摘要 |
PROBLEM TO BE SOLVED: To provide heating method and device that performs Joule heating on a heating target object in plural electric conduction modes according to the type of the heating target object.SOLUTION: A heating unit has plural electrodes 21 to 27 and insulating cylindrical bodies 31 to 36, and also has a tubular member 20 having a feeding flow passage 20a. An electrode is connected to a power supply tap of a power supply transformer 40 through a power supply cable. A heating unit has a closest approach electric conduction mode for supplying electric power to electrodes which are adjacent to each other in a feeding direction and serve as a closest approach electrode pair, and a skip electric conduction mode for supplying power to a pair of skip electrodes which are paired through at least one of plural electrodes which is set as an electric non-conduction rest electrode, thereby making current pass through the heating target object and heating the heating target object.SELECTED DRAWING: Figure 3 |
