F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
F23L 7/00 (2006.01) F23C 9/00 (2006.01) F23C 9/08 (2006.01)
Patent
CA 2733107
An oxy/fuel combustion system having a furnace arranged and disposed to combust a fuel to form a combustion fluid. The system further includes a convective section having at least one heat exchanger arranged and disposed to exchange heat between the combustion fluid and steam for use in a steam turbine. A flue gas recycle is arranged and disposed to recycle at least a portion of the combustion fluid as a recycled flue gas, the flue gas recycle having at least two expellant locations downstream of a primary combustion zone. The system includes a flow control mechanism that provides controlled amounts of the recycled flue gas to the at least two expellant locations to control temperature of the steam.
L'invention concerne un système de combustion oxygaz qui comporte un fourneau conçu et disposé pour assurer la combustion d'un combustible en vue de former un fluide de combustion. Le système comprend en outre un étage de convection ayant au moins un échangeur thermique conçu et disposé pour assurer l'échange thermique entre ledit fluide et de la vapeur aux fins d'utilisation dans une turbine à vapeur. Un système de recyclage de gaz de combustion est conçu et disposé pour assurer le recyclage d'au moins une partie du fluide de combustion sous la forme de gaz de combustion recyclé, et ce système comporte au moins deux emplacements d'expulsion en aval d'une zone de combustion primaire. Le système décrit comporte un mécanisme de régulation de flux qui fournit des quantités régulées de gaz de combustion recyclé aux deux emplacements d'expulsion considérés dans le but d'assurer la régulation de la température du flux.
Air Products And Chemicals Inc.
Mcfadden Fincham
LandOfFree
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