METHOD AND APPARATUS FOR GENERATING MICRO BUBBLES IN A FLUID FLOW

摘要

A method and apparatus for generating micro-bubbles and for mixing and/or blending fluids includes providing a pressurized elongate container, having at least one tube mounted in the container inlet. A pre-mixing chamber feeds into each tube. Each tube is cantilevered from the container inlet and has a fixed internal diameter. The tubes are replaceable so that the length of each tube in the container may be optimized to generate micro-bubbles. Tuning or optimizing of the micro-bubble generating system achieves a required pressure drop to form micro-bubbles of five microns or less, and may form nano-bubbles. An upstream pump pressurizes at least two fluids which feed into the pre-mixing chamber. Pressure from the container outlet may be controlled by a valve. The valve leads to a second container, which may be open to atmospheric pressure.