摘要:
The present application thus describes a method of manufacture for a late lean injection system in a combustor of a combustion turbine engine. The method may include the steps of: a) identifying a desired position within the flow assembly for a late lean injector, wherein the late lean injector comprises a late lean nozzle and a transfer tube; b) corresponding to the desired position for the late lean injector, identifying an injection point on the inner radial wall and a late lean nozzle position on the outer radial wall; c) positioning the inner radial wall and the outer radial wall in an unassembled position; d) while in the unassembled position, forming a hole through the inner radial wall at the injection point and slideably engaging the transfer tube within the hole; e) installing the late lean nozzle in the outer radial wall at the late lean nozzle position; f) positioning the inner radial wall and the outer radial wall in an assembled position; and g) connecting the transfer tube to the late lean nozzle.
摘要:
The present application thus describes a method of manufacture for a late lean injection system in a combustor of a combustion turbine engine. The method may include the steps of: a) identifying a desired position within the flow assembly for a late lean injector, wherein the late lean injector comprises a late lean nozzle and a transfer tube; b) corresponding to the desired position for the late lean injector, identifying an injection point on the inner radial wall and a late lean nozzle position on the outer radial wall; c) positioning the inner radial wall and the outer radial wall in an unassembled position; d) while in the unassembled position, forming a hole through the inner radial wall at the injection point and slideably engaging the transfer tube within the hole; e) installing the late lean nozzle in the outer radial wall at the late lean nozzle position; f) positioning the inner radial wall and the outer radial wall in an assembled position; and g) connecting the transfer tube to the late lean nozzle.
摘要:
A transfer tube for use in a late lean injection system of a combustor, wherein the combustor includes an inner radial wall, which defines a primary combustion chamber downstream of a primary fuel nozzle, and an outer radial wall, which surrounds the inner radial wall forming a flow annulus therebetween, the outer radial wall including a late lean nozzle, the transfer tube including flow directing structure that defines a fluid passageway. At a first end, the flow directing structure may include an inlet and attachment means that attach the transfer tube to the late lean nozzle. The flow directing structure may have a configuration such that the fluid passageway spans the flow annulus and positions the outlet at a desirable injection point in the inner radial wall.
摘要:
An assembly for use in a late lean injection system of a combustor of a combustion turbine engine, wherein the combustor includes an inner radial wall, which defines a primary combustion chamber downstream of a primary fuel nozzle, and an outer radial wall, which surrounds the inner radial wall forming a flow annulus therebetween, the assembly comprising: a boss rigidly secured to the inner radial wall, the boss being configured to define a hollow passageway through the inner radial wall; a transfer tube slideably engaged within the boss; a stop formed on the transfer tube; and damping means positioned between the boss and the stop.
摘要:
Disclosed herein are apparatuses, methods, and systems for transition piece contouring. In an embodiment, a high thermal stress section of a transition piece and a low thermal stress section of a transition piece is a determined The low thermal stress section of the transition piece may be contoured to intercept hot gas flow.
摘要:
A combustor includes a combustion chamber and a casing that circumferentially surrounds the combustion chamber to at least partially define an annular passage between the casing and the combustion chamber. A fuel plenum extends radially through the casing to provide fluid communication through the casing to the annular passage, and a liner extends inside at least a portion of the fuel plenum to prevent fuel from directly impinging upon at least a portion of the fuel plenum. A method of reducing thermal stresses in a combustor includes flowing a fuel inside a fuel plenum that extends radially through a casing, shielding at least a portion of the fuel plenum from direct impingement by the fuel radially inward of the casing, and flowing the fuel from the fuel plenum into an annular passage between the casing and a combustion chamber.
摘要:
Disclosed herein are apparatuses, methods, and systems for transition piece contouring. In an embodiment, a high thermal stress section of a transition piece and a low thermal stress section of a transition piece is a determined. The low thermal stress section of the transition piece may be contoured to intercept hot gas flow.
摘要:
An assembly for use in a late lean injection system of a combustor of a combustion turbine engine, wherein the combustor includes an inner radial wall, which defines a primary combustion chamber downstream of a primary fuel nozzle, and an outer radial wall, which surrounds the inner radial wall forming a flow annulus therebetween, the assembly comprising: a boss rigidly secured to the inner radial wall, the boss being configured to define a hollow passageway through the inner radial wall; a transfer tube slideably engaged within the boss; a stop formed on the transfer tube; and damping means positioned between the boss and the stop.
摘要:
A system for supplying a working fluid to a combustor includes a combustion chamber and a flow sleeve that circumferentially surrounds at least a portion of the combustion chamber. A tube provides fluid communication for the working fluid to flow through the flow sleeve and into the combustion chamber, wherein the tube comprises an axial centerline. A first set of injectors are circumferentially arranged around the tube and angled radially with respect to the axial centerline of the tube, wherein the first set of injectors provide fluid communication for the working fluid to flow through a wall of the tube.
摘要:
A fastener assembly configured for use within an opening defined in a transition piece bracket is disclosed. The fastener assembly may generally include a fastener having a head configured to be positioned proximal to a first end of the opening and a body. The body may include a shank portion, a threaded portion opposite the shank portion and a recessed portion defined between the shank portion and the threaded portion. The fastener assembly may also include a retention member configured to be positioned within the opening adjacent the recessed portion such that the retention member engages at least one of the shank portion or the threaded portion as the fastener is moved within the opening. In addition, the fastener assembly may include a biasing member engaged against the retention member. The biasing member may be configured to bias the head of the fastener away from the first end of the opening.