公开(公告)号：US4021188A

公开(公告)日：1977-05-03

申请号：US606605

申请日：1975-08-21

申请人： Kazuo Yamagishi ,  Ichiro Nakamachi ,  Masaaki Nozawa ,  Tsunenori Tokumoto ,  Shoichi Yoshie ,  Yasuo Kakegawa ,  Isamu Kikuchi ,  Yoshihisa Iseda ,  Yoshihiro Kanno ,  Sadanori Yamazaki ,  Masanobu Sato

发明人： Kazuo Yamagishi ,  Ichiro Nakamachi ,  Masaaki Nozawa ,  Tsunenori Tokumoto ,  Shoichi Yoshie ,  Yasuo Kakegawa ,  Isamu Kikuchi ,  Yoshihisa Iseda ,  Yoshihiro Kanno ,  Sadanori Yamazaki ,  Masanobu Sato

IPC分类号： F23C6/04 ,  F23C7/02 ,  F23R3/20 ,  F23R1/00

CPC分类号： F23C7/02 ,  F23C6/04 ,  F23R3/20

摘要： Burner arrangements for staged combustion to decrease nitrogen oxides (NOx) during the combustion of hydrocarbon fuel with air. The burner arrangements have a combustion into which hydrocarbon fuel and less than 70% of the stoichiometric air are introduced, and a path for the secondary air around the combustion chamber. A flame holding means is provided in one end of the combustion chamber to stabilize the substoichiometric combustion so that a partially burned gas containing mainly H.sub.2 and CO as combustible components is obtained. The combustion chamber has an exit, and there is an exit from the secondary air path near the exit of the combustion chamber. A discharging means for the partially burned gas is provided at the exit of the combustion chamber to vary the pattern of the flow of said partially burned gas by converting the enthalpy of said partially burned gas into kinetic energy. A discharging means for the secondary air is also provided at the exit for the secondary air to vary the pattern of the flow of the secondary air.

摘要翻译： 用于分段燃烧以在碳氢燃料与空气燃烧期间减少氮氧化物（NOx）的燃烧器装置。 燃烧器装置具有燃料，其中引入烃燃料和小于化学计量空气的70％，以及燃烧室周围二次空气的路径。 在燃烧室的一端设有火焰保持装置，以稳定亚化学计量燃烧，从而获得主要含H2和CO作为可燃组分的部分燃烧气体。 燃烧室具有出口，并且在燃烧室的出口附近存在从二次空气路径的出口。 用于部分燃烧的气体的排出装置设置在燃烧室的出口处，以通过将所述部分燃烧的气体的焓转化为动能来改变所述部分燃烧气体的流动的模式。 用于二次空气的排出装置也设置在用于二次空气的出口处，以改变二次空气的流动的模式。