| 摘要 |
A fine bubble generating apparatus is provided to generate ultrafine bubbles of the water mixed with the external air by intermittently sucking in the external air together with pulse wave by an air supply valve opened and closed at high speed and to change the water filled into a bath into an alkaline state by the ultrafine bubbles. The fine bubble generating apparatus(200) is composed of a pump(103) connected to a water inflow pipe(111) to supply water of a water supply source to a pressure tank and installed between the water supply source and the pressure tank; an air supply pipe(105) connected between the pump and a water inflow valve(114) of the water inlet pipe to feed the external air to the water inflow pipe; the pressure tank connected to a connecting pipe to temporally store the water mixed with the external air and mounted between the water supply source and the pump; a first jetting nozzle installed at the end of a water outlet pipe(113) drawn out from the pressure tank to jet the external air-mixed water discharged from the pressure tank, to the water supply source; and a first vacuum chamber(117) installed at the air supply pipe and opened and closed by an air supply valve to suck in the external air in a pulse wave form by the negative pressure generated by the pump. |
