公开(公告)号：US5067419A

公开(公告)日：1991-11-26

申请号：US456561

申请日：1989-12-26

申请人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

发明人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

IPC分类号： F22B21/34 ,  F22B31/00 ,  F23D23/00

CPC分类号： F23D23/00 ,  F22B21/346 ,  F22B31/00

摘要： A low-NOx boiler comprises a burner for burning gaseous fuel, heat transfer pipes heating water by combustion heat of the burner to generate steam and having a passage through which water flows, a steam drum communicating with the heat transfer pipe and accumulating the steam from the heat transfer pipe, and an exhaust gas duct located in the furnace to exhaust combustion gas generated by combustion of gaseous fuel outside of the boiler. The boiler further comprises unburnt gas burner in the exhaust gas duct for burning unburnt content in the combustion gas flowing in the duct. The unburnt gas burner includes a nozzle for injecting premixture flow of fuel and combustion air and flame holding plate located near the downstream side of the outlet of the nozzle to interrupt the premixture flow to form a circulating flow on downstream side of the flame holding plate. As gaseous fuel and air are mixed in advance and a flame is formed, the flame length can be shortened. Furthermore, the flame holding plate enables to reduce NOx generated. Unburnt gas burner provided in the exhaust gas duct makes it possible to notably reduce the concentration of NOx discharged to the outside of the system.

公开(公告)号：US5022849A

公开(公告)日：1991-06-11

申请号：US379926

申请日：1989-07-14

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

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

IPC分类号： F23C5/00 ,  F23C6/04 ,  F23C7/00 ,  F23C13/00 ,  F23D14/02

CPC分类号： F23C13/00 ,  F23C5/00 ,  F23C6/047 ,  F23C7/00 ,  F23D14/02 ,  F23C2900/05081

摘要： A low NOx burning method and apparatus wherein a low air ratio flame burned with an amount of air less than an amount of air in a theoretical air ratio required for burning fuel perfectly is formed, and combustibles discharged from the low air ratio flame are burned at a trailing stream of the low air ratio flame while supplying air. The low air ratio flame is a premixing flame burned by premixing the fuel and air, and combustion of the premixing flames is maintained in the vicinity of the premixing flame. In this way, the generation of the NOx during the burning can be greatly decreased, and the required apparatus can be small-sized.

摘要翻译： 形成低NOx燃烧方法和装置，其中形成低空燃比火焰燃烧的空气量少于燃烧燃料所需的理论空气比的空气量，并且从低空燃比火焰排出的可燃物燃烧在 在供应空气的同时，低空气比火焰的尾流。 低空气比火焰是通过预混合燃料和空气燃烧的预混合火焰，并且预混合火焰的燃烧保持在预混合火焰附近。 以这种方式，可以大大降低燃烧期间的NOx的产生，并且所需的装置可以小型化。

公开(公告)号：US5216885A

公开(公告)日：1993-06-08

申请号：US495907

申请日：1990-03-20

申请人： Masayuki Taniguchi ,  Yasuo Yoshii ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Michio Kuroda ,  Hironobu Kobayashi ,  Yoji Ishibashi

发明人： Masayuki Taniguchi ,  Yasuo Yoshii ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Michio Kuroda ,  Hironobu Kobayashi ,  Yoji Ishibashi

IPC分类号： F23R3/26 ,  F01K23/10 ,  F23C6/04 ,  F23C7/00 ,  F23C9/00 ,  F23D14/70 ,  F23R3/02 ,  F23R3/18 ,  F23R3/30 ,  F23R3/34

CPC分类号： F23C9/006 ,  F01K23/10 ,  F23C6/047 ,  F23C7/00 ,  F23D14/70 ,  F23R3/02 ,  F23R3/346 ,  F23C2202/40 ,  F23D2209/20

摘要： Method of burning a premixed gas and a combustor for practicing the method. A jet of the premixed gas is burnt from an inside to an outside of the jet to form a premix flame. A burned gas is mixed into the premixed gas from the outside of the jet. The burned gas is produced when premixed gas is burned.

公开(公告)号：US5325660A

公开(公告)日：1994-07-05

申请号：US027982

申请日：1993-03-08

申请人： Masayuki Taniguchi ,  Yasuo Yoshii ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Michio Kuroda ,  Hironobu Kobayashi

发明人： Masayuki Taniguchi ,  Yasuo Yoshii ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Michio Kuroda ,  Hironobu Kobayashi

IPC分类号： F23R3/26 ,  F01K23/10 ,  F23C6/04 ,  F23C7/00 ,  F23C9/00 ,  F23D14/70 ,  F23R3/02 ,  F23R3/18 ,  F23R3/30 ,  F23R3/34 ,  F02C7/26

CPC分类号： F23C9/006 ,  F01K23/10 ,  F23C6/047 ,  F23C7/00 ,  F23D14/70 ,  F23R3/02 ,  F23R3/346 ,  F23C2202/40 ,  F23D2209/20

摘要： Method of burning a premixed gas and a combustor for practicing the method. A jet of the premixed gas is burnt from an inside to an outside of the jet to form a premix flame. A burned gas is mixed into the premixed gas from the outside of the jet. The burned gas is produced when premixed gas is burned.

摘要翻译： 燃烧预混合气体和燃烧器的方法。 预混合气体的射流从射流的内部燃烧到外部，形成预混火焰。 将燃烧的气体从喷射器的外部混入预混气体中。 燃烧的气体是在预混气体燃烧时产生的。

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。

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：US5349812A

公开(公告)日：1994-09-27

申请号：US10576

申请日：1993-01-28

申请人： Masayuki Taniguchi ,  Hironobu Kobayashi ,  Kiyoshi Narato ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Michio Kuroda ,  Noriyuki Hayashi

发明人： Masayuki Taniguchi ,  Hironobu Kobayashi ,  Kiyoshi Narato ,  Tadayoshi Murakami ,  Shigeru Azuhata ,  Michio Kuroda ,  Noriyuki Hayashi

IPC分类号： F23R3/26 ,  F23R3/28 ,  F02C9/50

CPC分类号： F23R3/26

摘要： A gas turbine combustor is capable of reducing NOx over a whole load range of a gas turbine. The combustor comprises two burner systems. It is possible to independently control a flow rate of combustion air supplied to a burner of the respective systems and a flow rate of bypass air jetted from through a bypass air port. The air supplied to the burners is mixed with fuel in a mixing chamber and then ejected into a combustion chamber so as to form a flame. The amount of bypass air is controlled in accordance with an operation load, a humidity of air and a heating value of fuel. It is therefore possible to prevent any blow off and reduce NOx over the whole load range of the gas turbine.

摘要翻译： 燃气轮机燃烧器能够在燃气轮机的整个负载范围内减少NOx。 燃烧器包括两个燃烧器系统。 可以独立地控制供给到各个系统的燃烧器的燃烧空气的流量和从旁通空气口喷射的旁路空气的流量。 供给燃烧器的空气与混合室中的燃料混合，然后喷射到燃烧室中以形成火焰。 旁路空气的量根据操作负荷，空气湿度和燃料的热值来控制。 因此，可以防止在燃气轮机的整个负载范围内的任何吹出和减少NOx。

公开(公告)号：US5328355A

公开(公告)日：1994-07-12

申请号：US765835

申请日：1991-09-26

申请人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Masayuki Taniguchi ,  Tadayoshi Murakami ,  Kiyoshi Narato ,  Michio Kuroda ,  Satoshi Tsukahara

发明人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Masayuki Taniguchi ,  Tadayoshi Murakami ,  Kiyoshi Narato ,  Michio Kuroda ,  Satoshi Tsukahara

IPC分类号： C08F259/04 ,  C08F259/00 ,  F23C7/02 ,  F23C9/00 ,  F23D11/10 ,  F23D23/00 ,  F23K5/20 ,  F23R3/16 ,  F23D11/40 ,  F23D11/44

CPC分类号： F23K5/20 ,  F23C7/02 ,  F23C9/006 ,  F23D11/107 ,  F23D23/00 ,  F23R3/16 ,  F23D2900/11101

摘要： In a combustor including a premixing type combustion burner which has an atomizer for ejecting a liquid fuel together with combustion air to atomize the liquid fuel, the atomizer is comprised of an inner shell to an inner peripheral surface of which the liquid fuel is supplied, an outer shell defining a passage for the combustion air running substantially straightly between the outer shell itself and an outer peripheral surface of the inner shell, and a swirling-flow guide plate for swirling the combustion air passed into the inner shell, while directing it in a downstream direction. The combustor further includes a resistor abruptly decreased in sectional area downstream and provided substantially downstream of the center of the swirling flow and in the vicinity of an outlet of the premixing type combustion burner for providing a resistance to a premixture ejected from the premixing type combustion burner.

摘要翻译： 在包括预混合型燃烧器的燃烧器中，其具有用于与燃烧空气一起喷射液体燃料以雾化液体燃料的雾化器，雾化器包括内壳，其内部表面供应液体燃料， 外壳限定用于在外壳本身与内壳的外周表面之间大致直线运行的燃烧空气的通道，以及用于旋转流入内壳的燃烧空气的旋流引导板，同时将其引导到 下游方向。 燃烧器还包括一个电阻器，其下游的截面积突然减小，并且基本上设置在旋流中心的下游，并且在预混合型燃烧器的出口附近，用于提供对从预混合型燃烧器喷出的预混合物的阻力 。

公开(公告)号：US4268482A

公开(公告)日：1981-05-19

申请号：US931400

申请日：1978-08-07

申请人： Norio Arashi ,  Tadayoshi Murakami ,  Kiyoshi Narato ,  Masaaki Shiga ,  Tomihisa Ishikawa

发明人： Norio Arashi ,  Tadayoshi Murakami ,  Kiyoshi Narato ,  Masaaki Shiga ,  Tomihisa Ishikawa

IPC分类号： B01D53/86 ,  B01J19/24 ,  B01J19/32 ,  B01J35/02 ,  B01J35/04 ,  B01J8/02 ,  F01N3/15

CPC分类号： B01J35/04 ,  B01D53/8631 ,  B01J19/32 ,  B01J2219/32206 ,  B01J2219/32213 ,  B01J2219/32227 ,  B01J2219/32466

摘要： A plurality of catalyst assemblies each have a plurality of sheet catalysts which are arranged in parallel to each other with distances thereby to define a plurality of gas passages. The catalyst assemblies are stacked in a catalytic reactor so that the width direction of the sheet catalysts of one of the catalyst assemblies will traverse the width direction of the sheet catalysts of each of the immediately adjacent assemblies, whereby leading edges of the sheet catalysts of each assembly are exposed to a gas to be treated rising upward in the gas passages.

摘要翻译： 多个催化剂组件各自具有多个片材催化剂，这些片材催化剂彼此平行地排列成间距，从而限定多个气体通道。 催化剂组件堆叠在催化反应器中，使得催化剂组件之一的片状催化剂的宽度方向横穿每个紧邻组件的片状催化剂的宽度方向，由此每个 组件暴露于在气体通道中向上升起待处理的气体。

公开(公告)号：US6026644A

公开(公告)日：2000-02-22

申请号：US700882

申请日：1996-08-21

申请人： Kazuyuki Ito ,  Tadayoshi Murakami ,  Kazuhiko Kawaike ,  Shigeru Azuhata ,  Michio Kuroda

发明人： Kazuyuki Ito ,  Tadayoshi Murakami ,  Kazuhiko Kawaike ,  Shigeru Azuhata ,  Michio Kuroda

IPC分类号： F02C9/28 ,  F23R3/12 ,  F23R3/16 ,  F23R3/18

CPC分类号： F23N5/242 ,  F02C9/28 ,  F23R3/12 ,  F23R3/16 ,  F23R3/18 ,  F05D2240/127 ,  F23N2041/20

摘要： A gas turbine combustor has a premixing burner for jetting out a premixed gas of fuel and air. A stabilizer forms a circulation of combustion gas generated by combustion of the premixed gas at the downstream side of the stabilizer to stabilize flame formed by the combustion of the premixed gas. Before the operation of the combustor, a relationship between a temperature of the stabilizer and combustion conditions of the premixed gas is checked. Thereafter during operation of the combustor, the temperature of the stabilizer is measured during combustion and the combustion conditions are checked according to only the measured temperature of the stabilizer and the aforesaid relationship. The stabilizer has a heat receiving surface at the most downstream side thereof. The temperature of a portion of the stabilizer around the heat receiving surfaces measured to allow an accurate assessment of the combustion conditions.

摘要翻译： 燃气轮机燃烧器具有用于喷射燃料和空气的预混合气体的预混合燃烧器。 稳定剂在稳定剂的下游侧形成由预混气体燃烧产生的燃烧气体的循环，以稳定由预混气体燃烧形成的火焰。 在燃烧器的操作之前，检查稳定器的温度与预混合气体的燃烧条件之间的关系。 此后，在燃烧器的运行期间，在燃烧期间测量稳定器的温度，并且仅根据稳定器的测量温度和上述关系检查燃烧条件。 稳定器在其最下游侧具有受热面。 测量了受热表面周围的一部分稳定器的温度，以便准确地评估燃烧条件。