Patent ID: 11873239
Assignee: NABAS GROUP, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 7:
8. A method for producing nano bubbles with hydroxyl radicals, comprising the steps of:
forcing a liquid to flow in and flow out through a pump inlet coupled to a pump outlet of a liquid pump;
mixing the liquid flow with rotating blades in a stacked configuration with several blades of different caliber and fixed blades on an interior wall of the pump in a stacked configuration with several blades of different caliber;
rotating multiple impellers installed in a rotation axis of a drive motor of the pump, said impellers placed between a pump inlet and the rotating blades and fixed blades;
transporting liquid through multiple chambers between the multiple impellers through the pump and propelled by rotation of the multiple impellers;
supplying at least one gas from a gas generator to the pump inlet to introduce to the liquid flow under pressure;
resupplying liquid flowing from the pump outlet to the pump inlet with a liquid recirculation pipe connecting the pump inlet to the pump outlet;
each rotating blade having a circumferential surface with a side portion and each fixed blade having a circumferential surface with a side portion, wherein each of the side portions of the circumferential surfaces of the rotating blades and the circumferential surfaces of the fixed blades are slanted so that each side portion has an inclination,
wherein each inclination of each side portion on each rotating blade is slanted so that an inclination is higher on a side nearer rotation direction and lower on an opposite side of the rotation direction, and
each inclination of each side portion on each fixed blade is slanted so that the inclination is relatively lower on a side nearer the rotation direction of rotating blade and higher on an opposite side,
wherein a vortex accelerating part is provided such that one or more of each rotating blade, each fixed blade, and the blade sides of each blade are slanted against a reference radius line.