F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
F28F 7/00 (2006.01) B01B 1/00 (2006.01) C01B 3/34 (2006.01) C01B 3/38 (2006.01) F28F 27/02 (2006.01) G05D 9/12 (2006.01)
Patent
CA 2391029
Systems and methods for accurately calculating a steam-carbon ratio in a reformer or the like are shown and described. In one embodiment, a control valve regulates the amount of water entering the process side of a heat exchanger upstream of the reformer. A steam/process outlet directs steam from the heat exchanger to the reformer. A level control device operates the control valve to maintain the water at a constant level. A meter upstream of the heat exchanger measures the amount of water entering the heat exchanger. By maintaining a constant water level in the process portion of the heat exchanger, the reading on the meter equates to the amount of steam directed from the heat exchanger to the reformer or vaporizer. With this reading, the steam-carbon ratio at the reformer can be accurately counted. In another embodiment of the present invention, a process gas inlet incorporates an elongated body extending at least partially through the process portion of the heat exchanger. Openings spaced apart along the length of the body distribute the process gas along the length of the heat exchanger. In still another embodiment of the invention, a plurality of dividers is spaced apart along a width of the process portion of the heat exchanger. The dividers are positioned to receive the process gas as it rises from the process gas inlet, and to disperse the process gas along the width of the heat exchanger.
Eiche Michael
Epp Mark A.
Ballard Generation Systems Inc.
Borden Ladner Gervais Llp
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