PROBLEM TO BE SOLVED: To provide a sterilization device which effectively supplies sterilization air to a drinking water tank and whose structure can be simplified and miniaturized.SOLUTION: The sterilization air supply device has an air extracting port 9 connected to the drinking water tank, an outside air introducing port 19 for introducing outside air, a convection chamber 7 for convecting air, an ozone generating means 8 arranged in the convection chamber, a circulation passage 13 in which an introducing opening part 15 is arranged in the bottom part side of the convection chamber and flowing out opening part 14 is arranged above the introducing opening part 15, and a heating means 16 for heating air in the circulation passage in the device body H. The ozone in the convection chamber settles down by its own weight and is guided from the introducing opening part 15 to the circulation passage, the air in the circulation passage is heated by the heating means becomes an ascending air current and flows out from the flowing out opening part to the convection chamber.COPYRIGHT: (C)2012,JPO&INPIT【課題】 飲料水タンクに殺菌空気を効率的に供給するとともに、構造の簡素化と小型化を達成できる殺菌装置を提供することである。【解決手段】装置本体Hに、飲料水タンクに接続する空気抽出口9と、外気を導入する外気導入口19と、空気を対流させるための対流室7と、この対流室に設けたオゾン発生手段8と、この対流室の底部側に導入開口部15を設けるとともにこの導入開口部よりも上方に流出開口部14を設けた循環用通路13と、この循環用通路内の空気を暖める加熱手段16とを備えている。そして、上記対流室内のオゾンがその自重で沈降して上記導入開口部から上記循環用通路に導かれるとともに、この循環用通路における空気は加熱手段で加熱されて上昇気流となって上記流出開口部から対流室に流出する構成にしている。【選択図】 図2
