F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 31/00 (2006.01) F22B 29/06 (2006.01)
Patent
CA 2437479
A once-through boiler system for use in conjunction with a combustion chamber includes a water inlet through which wa- ter having a high total dissolved solids content is sup- plied to the system, at least one tubular preheating sur- face for preheating the water as the water flows through the preheating surface, and at least one tubular evapora- tion surface for further heating the water flowing therein to produce a steam/water mixture. The preheating surface is disposed downstream from the inlet and encloses at least part of the combustion chamber, and the evaporation surface is disposed within the combustion chamber, downstream from the preheating surface. Also, a method of producing a steam/water mixture from water having a high total dis- solved solids content by using a once-through boiler system provided in conjunction with a combustion chamber includes steps of supplying water having a high total dissolved sol- ids content to the boiler system, preheating the water by directing the water through at least one tubular preheating surface that encloses at least part of the combustion cham- ber, and further heating the water to produce a steam/water mixture by directing the preheated water through at least one tubular evaporation surface disposed within the combus- tion chamber.
Goidich Stephen J.
Gupta Gopal D.
Foster Wheeler Energy Corporation
Gowling Lafleur Henderson Llp
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