摘要:
Die Erfindung betrifft eine Brenneranordnung (1) mit einer Brennkammer (2), einer Vielzahl von in die Brennkammer (2) mündenden Mischkanälen, in denen während des bestimmungsgemäßen Betriebs eingeleitete Verbrennungsluft und eingeleiteter Brennstoff gemischt werden, und zumindest einem Resonator, der ein definiertes Resonatorvolumen und Resonatoröffnungen aufweist, dadurch gekennzeichnet, dass die Mischkanäle durch Mischrohre (5) gebildet sind, die sich axial durch einen Ringraum (12) erstrecken, der zwischen einer rohrförmigen Außenwand (8), einer radial von der Außenwand (8) beabstandet angeordneten rohrförmigen Innenwand (9), einer stromaufwärts angeordneten ringförmigen Stirnplatte (10) und einer stromabwärts angeordneten ringförmigen Stirnplatte (11) definiert ist, wobei die Stirnplatten (10, 11) mit Durchgangsöffnungen (16, 23) versehen sind, welche die Mischrohre (5) aufnehmen und/oder fortsetzen, dass die Resonatoröffnungen des zumindest einen Resonators als Luftkanäle (24) ausgebildet sind, die sich durch die stromabwärts angeordnete Stirnplatte (11) erstrecken, und dass das Resonatorvolumen des zumindest einen Resonators durch zumindest einen Teil des Ringraums (12) gebildet ist.
摘要:
An acoustically dampened gas turbine engine having a combustor with an acoustic damping system is disclosed. The acoustic damping system may be formed from an acoustic damping body having at least one orifice configured to receive a combustor nozzle assembly. The acoustic damping body may be positioned in a head region of a combustor basket and may include one or more orifices in the acoustic damping body. The acoustic damping system may mitigate longitudinal mode dynamics thereby increasing an engine operating envelope and decreasing emissions
摘要:
A combustor (100) for a gas turbine engine (30) has a circumferentially extending liner (109) defining at least a portion of an interior combustion chamber (107) and a hot gas path (115). The liner includes a resonator section (112) including at least one resonator (116A, 116B) having a resonator chamber (125A, 125B) formed on an exterior of the liner. A thermal barrier coating (118) is disposed along an inner surface of the liner including an inner surface (130) of the resonator section. The resonator further includes a plurality of apertures (117) and each aperture extends through the liner and the thermal barrier coating at the resonator section and there is fluid flow communication between the combustion chamber and the resonator chamber.
摘要:
A strip seal arrangement (100) for turbine components employs acoustic damping. A sealing plate (110) having a front face (119) adjacent a combustion chamber (60) and a back face (121) facing away from a combustion chamber configured to have one or more holes (151) of a predefined cross-sectional area. Containers (155) having predefined volumes are attached to the back face (121) of the sealing plate (110) such that the one or more holes (151) are in fluidic communication with the one or more containers (155) thereby creating at least one acoustic damper (150). The side edges of the sealing plate (110) fit into a slots (31) of burner front panels (20), creating a seal between the panels (20).
摘要:
The damper arrangement (100) comprises two concentric hollow shapes (10 and 20), each having a wall (11 and 12), wherein the walls (11 and 12) form an annular volume (22) therebetween. The damper arrangement (100) further comprises one or more necks (30) for connecting to a combustion chamber (5) at corresponding one or more contact points. The one or more necks (30) are connected to the annular volume (22).
摘要:
The invention provides a cylindrical premix gas burner (100) which is comprising a perforated metal plate as cylindrical burner deck (110). The cylindrical premix gas burner (100) is delimited by an end cap (118). An inlet disc (130) is provided for the supply of a premix of combustible gas and air into the burner. The premix gas is to be burned on the outside of the cylindrical burner deck (110) after the premix gas has flown through it. The inlet disc (130) is comprising a plurality of perforations for supplying premix gas supply into the burner. The inlet disc is having a centre point (150), which is where the central axis of the cylindrical premix gas burner (100) crosses the inlet disc (130). The inlet disc (130) is not permeable to premix gas at least within a circle with a diameter of at least 8 mm around the centre point (150).
摘要:
A boiler comprising a flue gas duct and heat exchanger pipes (132, 212, 262) in the flue gas duct. The boiler comprises a planar silencer plate (320), which silencer plate (320) comprises sound absorbing material, and said first silencer plate (320) being placed downstream of one of said heat exchanger pipes (132, 212, 262) in the flow direction of flue gases in said flue gas duct. Furthermore, a silencer for a flue gas duct with a rectangular cross-section in a boiler, the silencer comprising at least a first and a second planar silencer plate (320) substantially parallel to the flow direction of flue gases, the silencer plates (320) comprising sound absorbing material. The first silencer plate is placed at an angle to the second silencer plate, wherein the width of the resonating area of the flue gas duct becomes narrower in two directions transverse to the flow direction of the flue gases.
摘要:
The present application provides a power augmentation system with dynamics damping for a gas turbine engine. The power augmentation system may include a transition piece of a combustor and a steam manifold positioned about the transition piece. The transition piece may include a number of transition piece passageways therethrough and the steam manifold may include a number of manifold passageways therethrough. The manifold passageways may align with the transition piece passageways.
摘要:
The present invention relates to a resonator (100) with an adaptable resonator frequency (f) for absorbing sound generated by a gas stream of a gas turbine (110). The resonator (100) comprises a neck section (102), a chamber (101) and a deformable element (103) being deformable under influence of a change of a gas turbine temperature of the gas stream. The shape of the deformable element (103) is predetermined with respect to a respective gas turbine temperature. The neck section (102) and the chamber (101) form a volume of the resonator (100). The neck section (102) forms a passage coupling the volume with the gas turbine (110). The deformable element (103) is thermally coupled to the gas turbine (110) in such a way that the shape of the deformable element (103) depends on the respective gas turbine temperature. The deformable element (103) forms a spiral (300) and is installed to the neck section (102) in such a way that an effective diameter (D 2, eff ) of the neck section (102) depends on the gas turbine temperature. The shape of the spiral (300) depends on the respective gas turbine temperature for selectively adapting the effective diameter (D 2, eff ) of the neck section.