PROBLEM TO BE SOLVED: To provide a compact fluid heating apparatus using induction heating which has high heating efficiency.SOLUTION: A fluid heating apparatus comprises: a fluid channel 11 which includes straight tubes 12 made of a conductive metal material arranged in parallel with gaps therebetween, and U-shaped connection paths 13 arranged on one side and the other side of each of the straight tubes 12 to connect all the straight tubes 12 in series, and which has an inlet and an outlet while its entire part forms one flow channel and an induction coil 20 which is wound around so as to surround all the straight tubes 12, and which flows high-frequency induction current through each of the straight tubes 12. The both sides of the straight tubes 12 are supported by tube plates 14 and 15, and the straight tubes 12 are made of the metal material which is non-magnetic and corrosion-resistant.COPYRIGHT: (C)2012,JPO&INPIT【課題】小型で高い加熱効率を有する誘導加熱を用いた流動物加熱装置を提供する。【解決手段】隙間を有して平行に配置され導電性を有する金属材料からなる直管12と、各直管12の一方側および他方側にあって、全ての直管12を直列に連結するU字状連結路13とを備え、入口および出口を有して全体が一つの流路を形成する流動物通路11と、全ての直管12を取り囲むように巻回され、直管12の各々に高周波誘導電流を流す誘導コイル20とを有し、直管12の両側はそれぞれ管板14、15によって支持され、かつ直管12が非磁性かつ耐蝕性を有する前記金属材料からなる。【選択図】図1
