| 摘要 |
PURPOSE:To contrive to improve an operating efficiency by a method wherein in a space between heat resisting cylinder bodies of a cylinder shaped heat resisting casing, heat resisting frame bodies with ventilating holes and straightening vanes are alternatively and radially in a row, and also in the base unit of the above- mentioned heat resisting frame bodies, jetting nozzles and air supply pipes are disposed, in the combustor for a gas turbine. CONSTITUTION:A compressed air from an air compressor 1 is forcibly fed under pressure through a fluid flow path 8 and ventilating air-ducts 6, 7, similarly, combustion air from the air ventilating duct 6 is flowed into the heat resisting frame body 13 through an air feed pipe 17, which is mixed up with fuel from a jetting nozzle 16, and their mixtured gas are ignited by a ignition plug 18. According to this constitution, the primary combustion is performed in the primary air combustion zone 13c of the heat resisting frame body 13, subsequently, the complete combustion in the secondary air combustion zone 13d and dilution of the combustion gas in the diluting zone 13e, after that they are supplied with a nozzle 2a of the gas turbine 2. With this constitution, it is possible to mix fuel with a primary air without utilizing a swirl chamber, thereby, better effects on noise reduction, prevention of thermal deformation and an improvement of the operating efficiency are obtained.
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