PROBLEM TO BE SOLVED: To provide a heat sterilization device capable of effectively preventing damages caused by a thermal stress.SOLUTION: Provided is a heat sterilization device 1 which includes: a leg body 10 extended in a vertical direction； a stiffening plate 20 bonded to an upper part of the led body 10； a cylindrical treatment tank 30 whose peripheral surface is supported by being loaded on the stiffening plate 20； and a treatment-tank first fixing part 40 which fixes the treatment tank 30 to the stiffening plate 20. The treatment-tank first fixing part 40 includes: a fixing-bolt part 41 extended in a radial direction of the treatment tank 30 while its one end part being attached to the peripheral surface of the treatment tank 30； a slotted hole part 22 which is formed in the stiffening plate 20 to be longer at least in the length of the circumferential direction than the diameter of the fixing-bolt part 41 for allowing the fixing-old part 41 to be inserted； and a fixing-nut part 43 which fixes the stiffening plate 20 and the treatment tank 30 with the fixing-bolt part 41 being inserted in the slotted hole part 22 while allowing the fixing-bolt part 41 to be movable in the circumferential direction with respect to the stiffening plate 20.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】熱応力に起因する破損を効果的に防止できる加熱殺菌装置を提供すること。【解決手段】上下方向に延びる脚体１０と、脚体１０の上部に接合される当て板２０と、当て板２０に載置されることにより周面が支持される筒状の処理槽３０と、処理槽３０と当て板２０とを固定する処理槽第１固定部４０と、を備える加熱殺菌装置１であって、処理槽第１固定部４０は、一端部が処理槽３０の周面に取り付けられ処理槽３０の径方向に延びる固定ボルト部４１と、当て板２０に形成され固定ボルト部４１が挿通される長穴部２２であって、少なくとも周方向の長さが固定ボルト部４１の径よりも大きく形成される長穴部２２と、固定ボルト部４１が長穴部２２に挿通された状態で、当て板２０と処理槽３０とを、固定ボルト部４１が当て板２０に対して周方向に移動可能に固定する固定ナット部４３と、を備える。【選択図】図１
