Abstract:
The invention relates to a silo combustion chamber (1) for a gas turbine (46) which can be coupled to a heat exchanger (54) during operation, comprising a flame tube (12) which is made of an inner wall (2) and a flame tube base (8) and which delimits a combustion chamber (10); an outer wall (6) which surrounds the inner wall (2), thereby forming a cavity (4); an annular chamber (20) which at least partly surrounds the outer wall (6) and which has a number of supply lines (22), said supply lines (22) being fluidically coupled to the hot side (57) of a heat exchanger (54) during the operation of the gas turbine (46); and a number of burners (24), each of which opens into the combustion chamber (10) on the outlet side through an opening (26) in the flame tube base (8) and the oxygen supply (34) of which is fluidically connected to the annular chamber (20). A collecting chamber (16) is provided which is arranged over the flame tube base (8), and a number of connection pieces (18) are also provided. The annular chamber (20) is connected to the collecting chamber (16) via each connecting piece (18), and each burner (24) is fluidically connected to the collecting chamber (16) in order to supply oxygen. The cavity (4) between the inner wall (2) and the outer wall (6) is locally fluidically separated from the collecting chamber (16).
Abstract:
The invention relates to a machine component having a base body (40) produced from a base material, said base body being equipped in a partial region of the surface thereof with a plating (42) made of an application material having a greater hardness and/or viscosity as compared to the base material, enabling a plating application having the greatest possible stability while simultaneously having a further processing capability and lower stress on the machine component by means of the application method. Furthermore, the occurrence of hot and cold spots is to be largely prevented. To this end, the invention proposes that the plating (42) be formed by a number of plating elements (54) that are applied to the base body (40) in the longitudinal direction thereof in a tilted manner relative to the main flow direction (56) of a hot gas flowing through the base body (40).
Abstract:
A combustion system including a plurality of axially staged tubular premixers (33, 34) to control emissions and minimize combustion noise. The combustion system includes a radial inflow premixer that delivers the combustion mixture across a contoured dome (32) into the combustion chamber (22). The axially staged premixers (33, 34) having a twist mixing apparatus (63) to rotate the fluid flow and cause improved mixing without causing flow recirculation that could lead to pre-ignition or flashback.
Abstract:
A plant (12) for the treatment and/or utilization of energy of gaseous medium containing combustible constituents has a burner (44) which has a heatable combustion chamber. In the plant (12) there is a feed duct for the feed of gaseous medium into the combustion chamber. The plant has a reaction chamber (64) through which gaseous medium can flow and which has an inlet opening (67) through which the gaseous medium flows into the reaction chamber (64). The reaction chamber (64) has an outlet opening through which the gaseous medium passes from the reaction chamber (64) into a hot-gas duct for the discharge of treated off-gas from the reaction chamber (64). According to the invention, in the reaction chamber (64), there is at least one guide body for guiding the flow of the gaseous medium.
Abstract:
Die Erfindung nennt eine Silobrennkammer (1) für eine im Betrieb an einen Wärmetauscher (54) koppelbare Gasturbine (46), umfassend ein durch eine innere Wandung (2) und einen Flammrohrboden (8) gebildetes Flammrohr (12), welches einen Brennraum (10) begrenzt, eine äußere Wandung (6), welche die innere Wandung (2) unter Ausbildung eines Hohlraumes (4) umgibt, eine die äußere Wandung (6) zumindest abschnittsweise umlaufende Ringkammer (20), welche eine Anzahl von Zuleitungen (22) aufweist, wobei die Zuleitungen (22) im Betrieb der Gasturbine (46) strömungstechnisch mit der Warmseite (57) eines Wärmetauschers (54) koppelbar sind, und eine Anzahl von Brennern (24), welche jeweils ausgangsseitig durch eine Öffnung (26) im Flammrohrboden (8) in den Brennraum (10) münden und deren Sauerstoffversorgung (34) strömungstechnisch mit der Ringkammer (20) verbunden sind.
Abstract:
The invention relates to a seal arrangement (1) for a silo combustor. The seal arrangement (1) comprises a first casing (5) forming a passageway (7) for a gas and a second casing (6) forming a passageway (7) for a gas, whereby an end portion (19) of the first casing (5) is positioned radially inside of an upper portion of the second casing (6), the two cases (5, 6) form an overlapping region (10), whereby a segmented seal (11) is positioned to seal a radial gap (9) formed between the first casing (5) and the second casing (6) in the overlapping region (10). The first casing (5) is provided with at least one opening (20) in the region between two adjacent segments (13, 14) of the segmented seal (11).
Abstract:
The present invention relates generally to a lean premix module for an industrial gas turbine engine to satisfy increasingly stringent environmental requirements. A combustion system of the present invention employs a lean premix technique to meet the engine operability requirements and high power emission targets without the use of combustor diluent injection or post combustor exhaust treatment. A lean premix combustion mode is utilized to minimize primary zone combustion temperatures and limit the oxides of nitrogen production during high power engine operation. In one form of the present invention, the lean premix combustion is carried out in an off centerline silo combustor having a plurality of lean premix modules positioned parallel within a common liner. The lean premix modules receive the air from the compressor into a radial swirler and the fuel is dispensed along the radial swirler in order to be premixed with the air. A nozzle having a converging-diverging section is utilized to accelerate the fluid flow in the converging portion to prevent flashback, and in the diverging portion to expand the fluid flow to induce a centrally located recirculation zone. In another form of the present invention, the lean premix module is located inline in a can-annular combustion system.