| 摘要 |
PROBLEM TO BE SOLVED: To improve a circuit power factor to enhance efficiency of facility, in a fluid heating device that energizes and heats by applying an ac volatge across conductor pipes in which a fluid flows in the interior.SOLUTION: A fluid heating device includes a fluid heating part 3 composed of one conductor pipe 2 or a plurality of conductor pipes 2 electrically connected to each other, and is configured such that an ac voltage from an ac power source 4 is applied across both ends of even numbers of divided elements 3a, 3b formed by dividing an impedance value of the fluid heating part 3 into equal even number parts, and electric currents flowing through the divided elements 3a, 3b are made reverse relative to each other, thus magnetic fluxes generated on each of the even numbers of the divided elements 3a, 3b are cancelled each other as a whole. |
