Ultra-fine bubble maker and ultra-fine bubble water maker

摘要

The ultra-fine bubbled water production apparatus 1 comprises a vortex pump 3, an ejector 4, a cascade pump 6, and an ejector 4 and The return passage 7 connected between the cascade pump 6, the flow control valve 9 and the first ultra-fine bubble maker 2A interposed in the return passage 7, and the discharge path 8 connected to the branch P ), a second ultra-fine bubble maker 2B and a control device 13 interposed in the discharge path 8 are provided. The control device 13 controls the amount of air based on the measured values of the densitometer 10 of the discharge path 8 and the first and second pressure gauges 11 and 12 on the downstream and upstream sides of the cascade pump 6 . Regulate the control valve (5), the vortex pump (3), the cascade pump (6) and the flow control valve (9).