PROBLEM TO BE SOLVED: To provide a chlorine dioxide generator which has a simple structure, does not cause unintended leakage of chlorine dioxide gas, allows efficient generation and gasification of chlorine dioxide in a short time and facilitates control of fumigation operation.SOLUTION: In a chlorine dioxide generator, a reactor 10 includes large, middle and small bottomed cylindrical bodies 11, 12, 13, respectively, a first spiral groove 14a between the large cylindrical body 11 and the middle cylindrical body 12, a second spiral groove 14b between the middle cylindrical body 12 and the small cylindrical body 13, and a closing lid attached to the large cylindrical body 11 housing the middle cylindrical body 12 and the small cylindrical body 13, in order, and a first liquid chemical containing a chlorite and a second liquid chemical containing an acid, supplied to the bottom part of the large cylindrical body 11, are supplied, in order, to the first spiral groove 14a, the second spiral groove 14b and the center hole 13a of the small cylindrical body 13 and allowed to react so as to produce a solution of chlorine dioxide.COPYRIGHT: (C)2016,JPO&INPIT【課題】簡単な構造によって、かつ、二酸化塩素ガスの不用意な漏洩がなく、二酸化塩素の生成及びガス化を短時間内に、かつ効率よく行えて、燻蒸作業の制御も行い易いものとすることのできる二酸化塩素発生装置を提供する。【解決手段】リアクター10を、大、中、小の有底筒体11、12、13と、大筒体11と中筒体12との間の第1螺旋溝14aと、中筒体12と小筒体13との間の第2螺旋溝14bと、中筒体12及び小筒体13を順に収納した大筒体11に取り付けた閉蓋とを備えたものとし、大筒体11の底部に供給された亜塩素酸塩を含む第1薬液と酸を含む第2薬液を、第1螺旋溝14a、第2螺旋溝14b、及び小筒体13の中心穴13aに順次供給する間に反応させて、二酸化塩素溶液を生成する二酸化塩素発生装置。【選択図】図6
