公开(公告)号：US5038558A

公开(公告)日：1991-08-13

申请号：US292345

申请日：1988-12-30

申请人： Kenichi Sohma ,  Shigeru Azuhata ,  Yasuo Iwai ,  Tooru Inada ,  Hironobu Kobayashi ,  Kiyoshi Narato ,  Stephen M. Masutani ,  Tadayoshi Murakami ,  Norio Arashi ,  Yoji Ishibashi ,  Michio Kuroda

发明人： Kenichi Sohma ,  Shigeru Azuhata ,  Yasuo Iwai ,  Tooru Inada ,  Hironobu Kobayashi ,  Kiyoshi Narato ,  Stephen M. Masutani ,  Tadayoshi Murakami ,  Norio Arashi ,  Yoji Ishibashi ,  Michio Kuroda

IPC分类号： F23R3/12 ,  F23R3/30 ,  F23R3/34

CPC分类号： F23R3/34

摘要： A gas turbine combustor comprises a combustion chamber, a premixing chamber in which hydrocarbon fuel and air are premixed, a nozzle with swirler for swirling and injecting the premixed fuel and air into the combustion chamber, to effect premixed combustion, and a fuel nozzle projecting into the combustion chamber and adapted to inject fuel at region wherein the premixed combustion is completed, so as to effect low air-ratio diffusion combustion thereby to produce reducing substance. NOx produced by the premixed combustion is reduced by reducing reaction with the reducing substances, so that the NOx concentration in the combustion gas is reduced. The combustor further includes an after-air ports on a peripheral wall defining the combustion chamber to effect combustion of unburnt substances.

公开(公告)号：US5339635A

公开(公告)日：1994-08-23

申请号：US918799

申请日：1992-07-27

申请人： Yasuo Iwai ,  Shigeru Azuhata ,  Kenichi Sohma ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Tooru Inada ,  Tadayoshi Murakami ,  Norio Arashi ,  Yoji Ishibashi ,  Michio Kuroda

发明人： Yasuo Iwai ,  Shigeru Azuhata ,  Kenichi Sohma ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Tooru Inada ,  Tadayoshi Murakami ,  Norio Arashi ,  Yoji Ishibashi ,  Michio Kuroda

IPC分类号： F23D14/26 ,  F23D23/00 ,  F23R3/28 ,  F23R3/34

CPC分类号： F23D23/00 ,  F23D14/26 ,  F23R3/286 ,  F23R2900/03282

摘要： A gas turbine combustor of the pre-mixed combustion system in which the pre-mixed fuel and the air are combusted. The gas turbine combustor comprises main cylindrical nozzles provided in the end wall on the upstream side of a cylindrical combustion chamber, auxiliary nozzles formed to surround the main nozzles, a main pre-mixed gas supply for supplying a pre-mixed gas to the main nozzles, and an auxiliary pre-mixed gas supply for supplying a pre-mixed gas having an fuel/air ratio smaller than that of the main pre-mixed gas to the auxiliary nozzles, and wherein it is allowed to stably burn a lean pre-mixed gas having an fuel/air ratio of greater than 1 from a low-load condition through and up to a high-load condition of the gas turbine.

摘要翻译： 预混合燃料系统的燃气轮机燃烧器，其中预混合燃料和空气燃烧。 燃气轮机燃烧器包括设置在圆筒形燃烧室上游侧的端壁中的主圆柱形喷嘴，形成为围绕主喷嘴的辅助喷嘴，用于向主喷嘴供应预混合气体的主预混合气体供应 以及辅助预混合气体供应源，用于将具有比主预混合气体的燃料/空气比小于预混合气体的预混合气体供应到辅助喷嘴，并且其中允许稳定地燃烧稀混合 从低负荷状态通过燃气轮机的高负荷状态的燃料/空气比大于1的气体。