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Controlled differential pressure system for an enhanced fluid blending apparatus

United States Patent

February 24, 2009
View the Complete Patent at the US Patent & Trademark Office
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Tropexx – Blending System
A system and method for producing a controlled blend of two or more fluids. Thermally-induced permeation through a permeable tube is used to mix a first fluid from outside the tube with a second fluid flowing through the tube. Mixture ratios may be controlled by adjusting the temperature of the first fluid or by adjusting the pressure drop through the permeable tube. The combination of a back pressure control valve and a differential regulator is used to control the output pressure of the blended fluid. The combination of the back pressure control valve and differential regulator provides superior flow control of the second dry gas. A valve manifold system may be used to mix multiple fluids, and to adjust the volume of blended fluid produced, and to further modify the mixture ratio.
Hallman, Jr.; Russell Louis (Knoxville, TN)
Babcock & Wilcox Technical Services Y-12, LLC (Oak Ridge, TN)
11/ 236,959
September 28, 2005
GOVERNMENT RIGHTS The U.S. Government has rights to this invention pursuant to contract number DE-AC05-000R22800 between the U.S. Department of Energy and BWXT Y-12, L.L.C.