PROBLEM TO BE SOLVED: To provide a heat exchanger antifouling processing method and a heat exchanger antifouling processing system ensuring a sufficient bactericidal effect with lighter environment load.SOLUTION: A heat exchanger antifouling processing method includes steps of: supplying iodine to water for heat exchange supplied to a surface of a heat exchanger and performing a sterilization treatment by contacting the heat exchange water containing the iodine with the surface of the heat exchange, and a chlorination organic material and a bromine organic material is not produced by the method. A heat exchanger antifouling processing system includes iodine supply means for supplying iodine to the heat exchange water supplied to the surface of the heat exchanger.COPYRIGHT: (C)2014,JPO&INPIT【課題】環境への負荷が少なく十分な殺菌効果のある熱交換器の防汚処理方法および防汚処理システムを提供すること。【解決手段】熱交換器の表面に供給される熱交換用の水にヨウ素を供給する工程と、該ヨウ素を含む熱交換用の水を熱交換器の表面に接触させて殺菌処理を行う工程と、を有し、塩素化有機物および臭素化有機物を生成しないことを特徴とする熱交換器の防汚処理方法。また、熱交換器の表面に供給する熱交換用の水にヨウ素を供給するヨウ素供給手段を有する熱交換器の防汚処理システム。【選択図】図1
