摘要:
A gas turbine engine (120) includes a cylindrical basket (146) having an axis (14) and a single main burner assembly (12) disposed within the basket. A burner insert (34) is disposed in an annular space between the burner assembly and the basket. The insert includes a face perpendicular to the axis of the basket. A plurality of passageways (114) are formed in the basket, positioned proximate to and downstream of the burner insert for allowing passage of a portion of an oxidizer flow (42) into a combustion chamber (30). A fluid flow path (38), defined between a combustion chamber liner portion (32) of the basket and a casing (40) spaced radially outward from the combustion liner portion, discharges a fluid into a flow reversal region (118) proximate an inlet (20) of the burner assembly. A fuel outlet (44) is disposed in the flow reversal region.
摘要:
A gas turbine engine (120) includes a cylindrical basket (146) having an axis (14) and a single main burner assembly (12) disposed within the basket. A burner insert (34) is disposed in an annular space between the burner assembly and the basket. The insert includes a face perpendicular to the axis of the basket. A plurality of passageways (114) are formed in the basket, positioned proximate to and downstream of the burner insert for allowing passage of a portion of an oxidizer flow (42) into a combustion chamber (30). A fluid flow path (38), defined between a combustion chamber liner portion (32) of the basket and a casing (40) spaced radially outward from the combustion liner portion, discharges a fluid into a flow reversal region (118) proximate an inlet (20) of the burner assembly. A fuel outlet (44) is disposed in the flow reversal region.
摘要:
A combustion chamber according to the invention, in particular for a gas turbine, includes at least one combustion chamber wall through which cooling fluid flows and at least one resonator device. The combustion chamber according to the invention is distinguished in that the resonator device is integrated into the combustion chamber wall in such a way that it has the cooling fluid flow passing there through.
摘要:
An optical waveguide with a tubular or hose-like housing is provided, which is used in a high-temperature environment, such as, for example, in a burner. The housing has an input opening, an output opening and a center line extending from the input opening to the output opening. In the interior of the housing, transparent spheres are lined up along with center line. The light is guided on account of the refraction of a light beam upon entering and exiting from the transparent spheres.
摘要:
A process is disclosed for monitoring the formation of deposits of solid particles in a fuel line having a valve. A measure for the deposits of solid particles in the fuel line is determined by determining the degree of opening of the valve passage and the quantity of fuel flowing through the valve, and by comparing them with a previously determined control value which characterizes the deposit-free line. Also disclosed is a device for monitoring the formation of deposits of solid particles in a fuel line having a valve, the device having a measurement system for determining the current fuel flow and a measurement system for determining the current valve position, as well as an evaluation system connected to the measurement systems. Also disclosed is a combustion chamber comprising a device and operated by a process according to the invention, and a gas turbine with said combustion chamber.
摘要:
A performance-enhancing fuel nozzle is disclosed. The nozzle suitable for use in combustors which combine high-swirl-number combustion in a pilot zone with low-swirl-number combustion in a main combustion zone. The nozzle includes a fuel delivery member adapted for fluid communication with a fuel source and a flow conditioning member having a fuel exit port. The fuel exit port is in fluid communication with the fuel supply and is adapted to ensure that the recirculation region adjacent the nozzle tip remains flame free. In one aspect of the invention, the fuel concentration profile of the nozzle is characterized by a radially-outward region that is flammable and a radially-inward region that is substantially non-flammable. In another aspect of the invention, the fuel exit port being is disposed a radially-outward portion of the flow conditioning member. In another aspect of the invention, the flow conditioning member is characterized by a swirl number lower than about 0.5. In another aspect of the invention, the exit are high-momentum jets, having a design ratio pressure of greater than about 1.1. In another aspect of the invention, the nozzle is part of a combustor which has a high-swirl-number combustion in a pilot zone and low-swirl-number combustion in a main combustion zone.
摘要:
A burner includes an axis and a configuration which is rotationally symmetrical relative to the axis and includes an outer casing and an inner casing coaxial thereto. The configuration defines an annular gap extending from an inlet to an outlet for guiding a stream of oxygen-containing gas. A multiplicity of nozzles for supplying a fuel to the stream and a swirl lattice are disposed in the annular gap. The configuration including the outer and inner casings is constructed in such a way that the stream flows through the annular gap between the swirl lattice and the outlet at an essentially constant meridional velocity. The burner is particularly suitable for use in a gas turbine.
摘要:
A turbine burner is provided. The turbine burner has a secondary feed unit and a primary feed unit. The primary feed unit has a primary mixing tube and a fuel nozzle that are arranged concentrically around the secondary feed unit. The primary mixing tube and the fuel nozzle have a fluid flow connection. The fuel nozzle has an annular wall that is radially spaced in the axial direction from the secondary feed unit such that a gap height is fainted by the annular wall and the secondary feed unit. The annular wall has an inside wall directed toward the secondary feed unit and having blades with a leading edge on the upstream side. The fuel nozzle has an inlet and the blades have an axial distance from the inlet. The ratio of the distance to the gap height is greater than 1 and less than the gap height.
摘要:
A turbine burner is provided. The turbine burner has a secondary feed unit and a primary feed unit. The primary feed unit has a primary mixing tube and a fuel nozzle that are arranged concentrically around the secondary feed unit. The primary mixing tube and the fuel nozzle have a fluid flow connection. The fuel nozzle has an annular wall that is radially spaced in the axial direction from the secondary feed unit such that a gap height is fainted by the annular wall and the secondary feed unit. The annular wall has an inside wall directed toward the secondary feed unit and having blades with a leading edge on the upstream side. The fuel nozzle has an inlet and the blades have an axial distance from the inlet. The ratio of the distance to the gap height is greater than 1 and less than the gap height.
摘要:
A burner and a method for operating a burner are provided. The burner includes a channel having a mixing zone and having a feed for an oxidation means, particularly an air feed, and at least one fuel feed for injecting fuel, wherein a separating means which divides the channel over a wide range of the channel into at least two separated channels, namely a first channel and a second channel, is provided in the channel. The method for operating a burner having a channel includes a mixing zone into which an oxidation mass flow and fuel are injected, wherein two substantially separate flow paths are formed by means of a separating means in the channel and the at least two separated first and second channels, formed by the separating means.