Förfarande för bildande av gasbubblor i en vätska Förfarande för bildande av gasbubblor i en vätska och anordning för genomförande av förfarandet och anordning för genomförande av förfarandet

摘要

The present invention relates to a method and an apparatus for generating gas bubbles in a liquid, in which method gas and liquid are taken into a dispersion space (2) situated inside a dispersion nozzle device (1), and at least a portion of the dispersion operation is carried out in the dispersion space and in a discharge channel (3) exiting thereof using liquid-gas-liquid dispersion. In the method and apparatus according to the invention, flexible and accurate control of gas bubble size is achieved through altering the length (A) of the dispersion space (2) with the help of an adjuster means (4; 5; 10), or alternatively, through altering simultaneously the length (A) of the dispersion space (2) and the size of the gas infeed opening (12) to the dispersion space with the help of the adjuster means (4; 5; 10).