| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate cleaning using a cleaning agent prepared from chemicals by introducing a cleaning medium containing ozone having sterilization effects into piping and doing a cleaning action. SOLUTION: Bath water sucked from a suction port 7 is passed through a cleaning tank 2, a flow rate sensor 5, and a heater 6 by way of a pump 4 by elevating piping 11(1) and returned to a bathtub from a water discharge port 8. In this flow, ozone obtained by an ozone generator 17 is injected into/ mixed with bath water between the pump 4 and the suction port 7, and in the whole area of the piping 11 forming a bath water circulating route by a liquid cleaning medium consisting of ozone, the adhesion of 'bio' (microorganisms) is prevented. By a change over means consisting of the three- way valves 26a, 26b of a bath water circulating filter device, the sending of ozone into the cleaning tank 2 is prevented, and the 'bio' trying to adhere to the inside surface alone of a piping route 11 can be eliminated without damaging the 'bio' cultivated in the cleaning tank 2. The adhesion of the 'bio' is prevented without using a chemical and a cleaning agent, and cleaning work can be simplified.</p> |
