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Protection against flame retention there are in the preliminary mixer of a gas turbine combustion chamber and associated method
Protection against flame retention there are in the preliminary mixer of a gas turbine combustion chamber and associated method
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机译：在燃气轮机燃烧室的预混合器中设有防止火焰滞留的保护措施及相关方法
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摘要
A fuel nozzle arrangement (34) for a burner (18) of a gas turbine includes: a nozzle body (40) with a front side (46) and an inner tube (69), the a fuel conduit (68) is defined, which extends through the nozzle body, whereby the front side is in the vicinity of a combustion section (30) of the burner is located; an outer housing (78) around the inner tube, wherein between the outer housing and the inner tube, an air channel (76) is defined; a gas conduit (56), which is arranged in the air duct and an outlet (66) in the vicinity of the front side of the nozzle body, wherein fuel only then begins to flow through the extensible line, after a flame the rear of the impact event in the combustion chamber, and a pre-mixing fuel channel (70, 71) and an opening (61, 62), the fuel to a premixing section of the burner, wherein the gas line a to the pre-mixing fuel channel is open toward the inlet.
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