Oxygen dissolver for pipelines or pipe outlets
AssigneeBOC Gases Australia Limited
InventorsEdwin P. Archbold, Stephen P. Vaughan
Life of this patent
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Abstract
An apparatus for dispersing a gas into a fluid stream. The apparatus has a generally annular body disposed to define an orifice in the fluid stream, a plurality of inwardly depending apertures formed in the body and in fluid communication with a supply of pressurized gas. Each of the apertures defines a localized injection point for dispersion of the pressurized gas into the fluid stream. The orifice includes a restricted throat section adapted to progressively reduce the effective cross-sectional flow area of the fluid downstream of the apertures, such that resultant velocity and pressure differentials enhance dissolution of the gas in the fluid.
Claims17
An apparatus for dispersing a gas into a fluid stream flowing through a conduit comprising a generally annular body disposed to define an orifice in the fluid stream, said orifice including a restricted throat section adapted to progressively reduce the effective cross-sectional flow area of the fluid from the cross-sectional area of the conduit to the cross-sectional area of a neck portion downstream of said throat section, and a plurality of inwardly depending apertures formed in said throat section in fluid communication with a supply of pressurised gas, each of said apertures defining a localised injection point for dispersion of the pressurised gas into the fluid stream upstream of said neck portion, whereby the resultant velocity and pressure differentials in the fluid upstream and downstream of said neck portion enhance dissolution of the gas therein.
A method for dispersing a gas into a fluid stream comprising passing said stream through a conduit into an orifice having a restricted throat section which progressively reduces the effective cross-sectional flow area of the fluid from the cross-sectional area of the conduit to the cross-sectional area of a restricted neck portion downstream of said throat section and subsequently allowing said fluid to pass through said neck portion, gas being injected from a pressurised source into the fluid stream in said throat section upstream of said neck portion by means of a plurality of localised injection points whereby the resultant velocity and pressure upstream and downstream of said neck portion enhance the dissolution of the gas in the fluid.
Dependencies are inferred from the claim text.