초록 ▼

In a central portion of inner tube 28 of combustor 20, pilot fuel nozzle 22 and pilot cone 33 are arranged and main fuel nozzles 21 and main swirlers 32 therearound. Air intake portion (X-1) is provided with rectifier tube 11 for making air intake uniform. In air intake portion (X-2), air holes of a

In a central portion of inner tube 28 of combustor 20, pilot fuel nozzle 22 and pilot cone 33 are arranged and main fuel nozzles 21 and main swirlers 32 therearound. Air intake portion (X-1) is provided with rectifier tube 11 for making air intake uniform. In air intake portion (X-2), air holes of appropriate number of pieces are provided in circumferential wall of the inner tube 28. In main swirler portion (X-3) and pilot cone portion (X-4), bolt joint of the main swirlers 32 is employed and optimized welded structure having less influence of thermal stress of the pilot swirler 33 is employed, respectively. Tail tube cooling portion (X-5) is provided with cooling structure having less influence of thermal stress to cool flange 71 portion of tail tube 24 uniformly. By the improvements in the portions (X-1) to (X-5), obstacles in attaining higher temperature in the combustor 20 is dissolved and combustor performance is enhanced.

대표청구항 ▼

[ What is claimed is:] [8.]8. A gas turbine combustor arrangement of a gas turbine, comprising:a turbine casing having a turbine casing wall;an inner tube having a field inlet side, wherein said inner tube is connected at a downstream side thereof to a tail tube, and wherein said tail tube has an ou

[ What is claimed is:] [8.]8. A gas turbine combustor arrangement of a gas turbine, comprising:a turbine casing having a turbine casing wall;an inner tube having a field inlet side, wherein said inner tube is connected at a downstream side thereof to a tail tube, and wherein said tail tube has an outlet portion connected to a gas turbine inlet portion;wherein said inner tube comprisesa pilot swirler arranged in a central portion of said inner tube,a plurality of main swirlers arranged around said pilot swirler,a plurality of spaced supports supporting said inner tube on said turbine casing wall and forming an air intake, anda rectifier tube for making air taken in to said inner tube through said air intake uniform, said rectifier tube comprising a sloping end fixed to said turbine casing wall, said sloping end comprising a sloping portion having a contracting diameter, and said sloping portion extending around said supports, and said rectifier tube further comprising an other end forming an opening such that the other end maintains a predetermined spacing from said inner tube.