摘要:
An assembly for use in a fuel injection system within a combustor of a combustion turbine engine is described. The assembly may include: a first port (42) formed through an outer radial wall (26) of the combustor and a second port (43) formed through an inner radial wall (24). A plenum (44) may be formed about the first port. A tube (45) may be formed that has a first end positioned within the first port and a second end positioned within the second port. At the first end, the tube may be sized smaller than the first port such that two passages are defined therethrough: a first passage (48) defined about an exterior of the tube; and a second passage (49) defined through an interior of the tube.
摘要:
A combustor (200) includes a first combustion chamber (202), a pre-mixing primary fuel-nozzle assembly (210) associated with the first combustion chamber (202), a second combustion chamber (204), and a secondary fuel-nozzle assembly (212) associated with the second combustion chamber (204). The pre-mixing primary fuel-nozzle (210) assembly includes a number of vanes (222) configured to swirl airflow, each vane comprising a number of fuel injection holes (224) configured to inject fuel into the airflow.
摘要:
A late lean injection combustor assembly (200) may include a first interior (202) in which a first fuel supplied thereto is combustible, a flow sleeve annulus (210) including a second interior (206) in which a second fuel (215) supplied thereto is combustible, at least one fuel injector (214) disposed about the second interior (206), and at least one elongate premixing conduit (208) disposed about the flow sleeve annulus (210) and in fluid communication with the at least one fuel injector (214). The at least one elongate premixing conduit (208) may be in fluid communication with a compressor discharge air (216) and the second fuel (215) such that the compressor discharge air (216) and the second fuel (215) are premixed within the elongate premixing conduit (208) before entering the second interior (206) by way of the at least one fuel injector (214).
摘要:
An assembly for use in a fuel injection system within a combustor of a combustion turbine engine is described. The assembly may include: a first port (42) formed through an outer radial wall (26) of the combustor and a second port (43) formed through an inner radial wall (24). A plenum (44) may be formed about the first port. A tube (45) may be formed that has a first end positioned within the first port and a second end positioned within the second port. At the first end, the tube may be sized smaller than the first port such that two passages are defined therethrough: a first passage (48) defined about an exterior of the tube; and a second passage (49) defined through an interior of the tube.
摘要:
A system for supplying a working fluid to a combustor includes a fuel nozzle, a combustion chamber 40 downstream from the fuel nozzle, and a flow sleeve 50 that circumferentially surrounds the combustion chamber 40. A plurality of fuel injectors 60 are circumferentially arranged around the flow sleeve 50 to provide fluid communication through the flow sleeve 50 to the combustion chamber 40. A distribution manifold 62 circumferentially surrounds the plurality of fuel injectors 60, and a fluid passage 66 through the flow sleeve 50 and into the distribution manifold 62 provides fluid communication through the flow sleeve 50 to the plurality of fuel injectors 60.
摘要:
A system for supplying a working fluid 22 to a combustor 14 includes a combustion chamber 38, a liner 46 that circumferentially surrounds at least a portion of the combustion chamber 38, and a flow sleeve 48 that circumferentially surrounds at least a portion of the liner 46. A tube 60 provides fluid communication for the working fluid 22 to flow through the flow sleeve 48 and the liner 46 and into the combustion chamber 38, and the tube 60 spirals between the flow sleeve 48 and the liner 46.
摘要:
A flowsleeve of a turbomachine component includes an annular body (30) including an upstream casing (321) and a downstream casing (322). The upstream casing defines a fuel feed (70), and the downstream casing defines an airway opening (80), and a premixing passage (90). The premixing passage (90) is fluidly coupled to the fuel feed (70) and the airway opening (80) and has a passage interior in which fuel and air receivable from the fuel feed and the airway opening, respectively, are combinable to form a fuel and air mixture.
摘要:
A combustor (10) includes an end cap (20) having an upstream surface (28) axially separated from a downstream surface (30). A cap shield (46) circumferentially surrounds the upstream and downstream surfaces (28,30), tubes extend (34) from the upstream surface (28) through the downstream (30), and a plenum (52) is inside the end cap (20). A first baffle (70) extends radially across the plenum (50) toward the cap shield (46), and a plate (80) extends radially inside the plenum (50) between the first baffle (70) and the upstream surface (28). A method for supplying fuel to a combustor (10) includes flowing a working fluid (14) through tubes (34), flowing a fuel into a plenum (50) between upstream (28) and downstream surfaces (30), radially distributing the fuel along a first baffle (70), and axially flowing the fuel across a plate (80) that extends radially inside the plenum (50).