| 摘要 |
PROBLEM TO BE SOLVED: To destroy the bacteria in bathing water to keep bathing water clean to prevent infection of bacteria even in the case of a number of people bathing for rehabilitation by incorporating a sterilizing means in a circulating pipeline for connecting a circulating pump for bathing water, a bathing water suction port, an air intake port, an air mixing part, and a discharge port to one another. SOLUTION: A bath tub 1, a bathing water suction port 2, a pre-filter 3, a circulating pump 4, an air intake port 5 an air mixing part 6 and a discharge port 7 are connected to one another by a circulating pipeline 8, and various kinds of sterilizing means 9 are incorporated in the pipeline. That is, the sterilizing means 9 is formed by an ozone generator 10, and plural ultraviolet lamps 11, 12. The ozone generator 10 takes air in an ozonizer and guides the generated ozone into the circulating pipeline 8 by an ejector. The ultraviolet lamp 11 generates ultraviolet rays with about 200-300 nm by a low-pressure mercury-arc lamp to irradiate dissolved ozone in bathing water. Further, the ultraviolet lamp 12 generates ultraviolet rays with about 300-420 nm by a black light to promote irradiation, thereby intensifying the sterilizing force. |
