System and method for delivery of gas-supersaturated fluids

Details System and method for delivery of gas-supersaturated fluids System and method for delivery of gas-supersaturated fluids

B - Operations, Transporting

01

F

B01F 3/04 (2006.01) B01F 15/00 (2006.01) C12M 1/04 (2006.01)

Patent

CA 2286653

A system and method for delivering a gas-supersaturated fluid comprising a fluid reservoir (12), a fluid pump (14), a gas source (16), a high pressure gas exchanger (18), and one or more arrays of capillary channels (20) is disclosed. Suitable controls such as differential pressure gauge (22) and valves are provided to maintain a near constant hydrostatic pressure of the fluid within the semi-permeable membrane gas-fluid interface (26) of the gas exchanger at approximately 1 % to 20 % higher than the gas partial pressure of the fluid within the gas exchanger. Gas-supersaturated fluid output from the gas exchanger via the capillary channels is at a flow velocity of greater than 0.05 m/sec, thereby facilitating delivery of large flow rates of gas- supersaturated fluids without cavitation inception.

L'invention concerne un système et un procédé permettant de délivrer un fluide sursaturé en gaz. Ce système comprend un réservoir (12) de fluide, une pompe à fluide (14), une source de gaz (16), un échangeur (18) de gaz haute pression, et un ou plusieurs réseaux de canaux (20) capillaires. Des commandes appropriées, par exemple un manomètre (22) différentiel ou des soupapes à pression différentielle, permettent de maintenir une pression hydrostatique presque constante du fluide à l'intérieur de l'interface (26) gaz-fluide à membrane semi-perméable dudit échangeur de gaz, cette pression étant environ 1 à 20 % supérieure à la pression partielle gazeuse du fluide situé à l'intérieur de l'échangeur de gaz. Le fluide sursaturé en gaz s'écoule depuis l'échangeur de gaz par l'intermédiaire des canaux capillaires, à une vitesse d'écoulement supérieure à 0,05 m/sec, ce qui facilite la délivrance de débits élevés de fluides sursaturés en gaz, sans effet de cavitation.

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