METHOD FOR INJECTION OF GAS INTO LIQUID Russian patent published in 2003 - IPC

FIELD: methods for injection of gases into liquid. SUBSTANCE: the method consists in ejection of gas from a tapered pipe connection having a contraction-diffuser nozzle with outlet diameter d, formation of gas flow, having a supersonic initial speed of the jet at ejection from the tapered pipe connection, production of a flame envelope around the gas flow for transformation of the gas flow to a coherent gas flow, having a supersonic initial axial speed of the jet, passage of the coherent gas flow from the tapered pipe connection to the surface of the liquid volume, contacting of the surface of the liquid volume with the coherent gas flow and passage of gas to the liquid volume. The tapered pipe connection is moved off from the surface of the liquid volume at a distance at least 20 d. The coherent gas flow is passed through the mentioned distance of at least 20 d to the contact with the surface of the liquid volume, keeping the envelope of the flame surrounding the gas flow from the end of the mentioned tapered pipe connection to the surface of the liquid volume, due to it the coherent gas flow contacts with the surface of the liquid volume at the initial axial speed of the jet at least 50% of the initial gas speed. EFFECT: provided injection of gas from the device for injection of gas into liquid without its immersion and damages caused by a contact with liquid. 7 cl, 7 dwg