LIQUID DEGASSING METHOD AND CAVITATION DEGASSER Russian patent published in 2023 - IPC B01D19/00 C02F1/20 

FIELD: dissolved gases removing methods.

SUBSTANCE: invention relates to devices and methods for removing dissolved gases from a liquid and can be used in various technological processes where the dissolved gas distorts the desired result, as well as in biological systems for the dosed reduction of dissolved gas. The liquid degassing device includes an external cylindrical container and internal cylinders installed inside it with an offset relative to the axis, with the possibility of rotation relative to its axis in a cyclic mode, characterized by predetermined time periods of rotation and stop. The outer cylindrical container is fixedly installed, and inside it, with the possibility of unidirectional synchronous rotation, three inner cylinders are installed with a gap between them, while the cylinders are made to ensure the ratio R1/R2 ≤ 0.46, where R1 is the radius of the inner cylinder, R2 is the radius of the outer cylinder. The outer container and each inner cylinder are installed with a gap between their side surfaces from 0.05 mm to 0.15 mm. The liquid degassing method is characterized by the fact that the gap between the walls of the outer cylindrical container and the inner cylinders is filled with the degassed liquid, after which, with the outer container stationary, periodic rotation and stop of the inner cylinders are initiated, while during the rotation of the inner cylinders for a time of not more than 5 s on the side On the surface of each inner cylinder, a single cavitation formation with Suffman-Taylor instability is formed, and during the stop of the internal cylinders for a time of no more than 1 s, the formed cavitation formations on the surface of each inner cylinder float to the liquid-air interface.

EFFECT: simplification of the degassing process by providing generation in the flow areas between the outer and inner cylinders of a single large-sized cavitation formation, which helps to accelerate the removal of dissolved gas from the liquid.

2 cl, 4 dwg