| 摘要 |
PROBLEM TO BE SOLVED: To provide a small apparatus for generating and spraying a strongly acidic germicidal water with low-concentration hypochlorous acid, capable of being readily carried and having ensured sterilizing power of ejected water. SOLUTION: This spraying apparatus has a membrane-less type electrolytic cell 31, a saline solution tank 35, a means for sending a saline solution from a discharged water- collecting tank 36 and 35 to an electrolytic cell 31 by pressure, a spraying device 32, a direct current electric power unit 38, and a controller 39. The electrolytic cell 31 has a water-flow path formed without the membrane by a couple of smooth walls facing and approaching to each other in parallel, an anode plate forming at least a part of the wall at one side of the walls, a cathode plate forming at least a part of the other side, an acidic water- collecting flow path linked to the water flow path through the opening formed on the wall a part of which is formed by the anode plate in the downstream region of the water flow path, an alkaline water-collecting flow path linked to the downstream end of the water flow path, and a saline solution-supplying flow path linked to the upstream end of the water flow path. The saline solution-supplying flow path is lined to the collection tank 35. The alkaline water-collecting flow path is linked to the collection tank 36. The acidic water- collecting flow part is lined to the acidic water-discharging opening. The acidic water- discharging opening is connected to the spraying device 32. The spraying device 32 has a piezoelectric element and a perforated plate having one terminal fixed to the piezoelectric element. |
