摘要:
A combustion liner assembly (300) is provided and includes a combustion liner (318) and a transition piece (314). A portion of the transition piece (314) is circumferentially disposed around a portion of the combustion liner (318). A seal (340) is attached to the transition piece (314), and the seal (340) is configured to apply a compressive force to an aft end of the combustion liner.
摘要:
An apparatus is disclosed which includes a body (102) configured to flow hot gases (42) of combustion between a forward end (104) and an aft end (106). Additionally, the body (102) includes a plurality of raised sections (116) spaced apart circumferentially around an outer perimeter of the body (102). The raised section (116) may generally extend lengthwise between the forward and aft ends (104, 106).
摘要:
An apparatus is disclosed which includes a body (102) configured to flow hot gases (42) of combustion between a forward end (104) and an aft end (106). Additionally, the body (102) includes a plurality of raised sections (116) spaced apart circumferentially around an outer perimeter of the body (102). The raised section (116) may generally extend lengthwise between the forward and aft ends (104, 106).
摘要:
A combustion liner assembly (300) is provided and includes a combustion liner (318) and a transition piece (314). A portion of the transition piece (314) is circumferentially disposed around a portion of the combustion liner (318). A seal (340) is attached to the transition piece (314), and the seal (340) is configured to apply a compressive force to an aft end of the combustion liner.
摘要:
A late lean injection sleeve assembly (25) allows the injection of fuel at the aft end of a gas turbine liner (23), before the transition piece (24), into the combustion gases downstream of a turbine combustor's fuel nozzles (21). The late lean injection enables fuel injection downstream of the fuel nozzles (21) to create a secondary/tertiary (with quaternary injection upstream of the fuel nozzles (21)) combustion zone while reducing/eliminating the risk of fuel leaking into the combustion discharge case. The fuel is delivered by the flow sleeve (25) into one or more nozzles (30) that mix the fuel (13) with CDC air before injecting it into the combustor's liner (23).
摘要:
A system includes a gas turbine combustor (16), which includes a combustion liner (42) disposed about a combustion region, a flow sleeve (44) disposed about the combustion liner (42), an air passage (46) between the combustion liner (42) and the flow sleeve (44), and an aerodynamic mounting assembly (66) disposed in the air passage (46). The aerodynamic mounting assembly (66) is configured to retain the combustion liner (42) within the flow sleeve (44). The aerodynamic mounting assembly (66) includes a flow sleeve mount (68) coupled to the flow sleeve (44) and a liner stop (70) coupled to the combustion liner (42). The flow sleeve mount (68) includes a first portion of an aerodynamic shape and the liner stop (70) includes a second portion of the aerodynamic shape, which is configured to direct an airflow (82) into a wake region (67) downstream of the aerodynamic mounting assembly (66). The flow sleeve mount (68) and the liner stop (70) couple with one another to define the aerodynamic shape.
摘要:
An aft frame (50) and a method for cooling an aft frame (50) are disclosed. In one embodiment, an aft frame (50) for a transition piece (26) in a combustor (16) is disclosed. The combustor (16) includes the transition piece (26) and an impingement sleeve (34) at least partially defining a flow path (36) therebetween. The aft frame (50) includes a body (60) and a generally radially extending cooling passage (70) defined in the body (60), the cooling passage (70) comprising a first end (72) configured to accept a coolant (52). The aft frame (50) further includes an exhaust passage (80) defined in the body (60), the exhaust passage (80) including a first end (82) in communication with the cooling passage (70) and a second end (84) configured for communication with the flow path (36) for flowing the coolant (52) therethrough.