公开(公告)号：US5764535A

公开(公告)日：1998-06-09

申请号：US743811

申请日：1996-11-06

申请人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Ken Amano ,  Toshiyuki Tanaka ,  Hisayuki Orita ,  Kenji Kiyama

发明人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Ken Amano ,  Toshiyuki Tanaka ,  Hisayuki Orita ,  Kenji Kiyama

IPC分类号： F22B35/18 ,  F22B37/38 ,  F23D1/00 ,  F23N1/02 ,  F23N5/00 ,  F23N5/08

CPC分类号： F23N5/003 ,  F22B35/18 ,  F23N1/022 ,  F23N2021/10 ,  F23N2023/08 ,  F23N2023/40 ,  F23N2025/16 ,  F23N2029/20 ,  F23N2035/06 ,  F23N2037/16 ,  F23N2039/02 ,  F23N5/08

摘要： When at least one of a distribution of gas composition and distribution of temperature inside a furnace is estimated by dividing the region inside the furnace into two-dimensional or three-dimensional cells, and calculating a gas flow rate, a gas reaction amount, a coal combustion rate, a radiant heat transfer rate in each of the cells, based on design data including furnace dimentions and operational data including a coal supply rate and an air supply rate, an air ratio of gas phase--gas composion table is referred to, thereby to simplify the gas reaction amount calculation and reduce drastically time required for the calculation.

摘要翻译： 当通过将炉内的区域除以二维或三维细胞来估计炉内气体组分分布和温度分布中的至少一种，并计算气体流量，气体反应量，煤 燃烧率，每个电池中的辐射热传递速率，基于包括炉膛的设计数据和包括供煤速率和供气速率的操作数据，参考气相气相组合表的空气比，由此 简化气体反应量计算，减少计算所需的大量时间。

公开(公告)号：US5937770A

公开(公告)日：1999-08-17

申请号：US862256

申请日：1997-05-23

申请人： Hironobu Kobayashi ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Kiyama

发明人： Hironobu Kobayashi ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Kiyama

IPC分类号： F23C99/00 ,  F23D1/00 ,  F23D1/02 ,  F23C1/10

CPC分类号： F23D1/00 ,  F23D2201/20 ,  F23D2209/20

摘要： A pulverized coal burner includes a venturi for contracting a flow of a mixture of pulverized coal and primary air toward a central axis of a fuel nozzle 2. A spindle having a cone is provided coaxially with the central axis and gradually expands from an upstream side to a downstream side to cause the mixture to impinge thereon and diffuse. A column extends from the cone and is parallel to the central axis of the fuel nozzle, and a cone extends from the column and gradually narrows from an upstream side to a downstream side. A flow path divider, having a cone gradually narrowing coaxially with the central axis on the downstream side of the spindle, and a cylinder extending from the cone and being coaxial and parallel with the central axis of the fuel nozzle 2, coaxially divides the flow path.

摘要翻译： 粉煤燃烧器包括用于将煤粉和一次空气的混合物的流动朝向燃料喷嘴2的中心轴收缩的文氏管。具有锥体的心轴与中心轴同轴地设置，并从上游侧逐渐膨胀到 下游侧使混合物撞击并扩散。 柱从锥体延伸并且平行于燃料喷嘴的中心轴线，并且锥体从柱延伸并且从上游侧逐渐变窄到下游侧。 具有与主轴下游侧的中心轴同轴的锥体的流路分隔器以及从锥体延伸并且与燃料喷嘴2的中心轴线同轴并平行的圆筒同轴地分开流路 。

公开(公告)号：US20060115780A1

公开(公告)日：2006-06-01

申请号：US10538524

申请日：2003-08-27

申请人： Kenji Kiyama ,  Shigeki Morita ,  Osamu Okada ,  Koji Kuramashi ,  Takanori Yano ,  Keichi Ochi ,  Akira Baba ,  Miki Shimogori ,  Takeru Fukuchi ,  Hiroshi Yamaguchi ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Hirofumi Okazaki ,  Keni Yamamoto

发明人： Kenji Kiyama ,  Shigeki Morita ,  Osamu Okada ,  Koji Kuramashi ,  Takanori Yano ,  Keichi Ochi ,  Akira Baba ,  Miki Shimogori ,  Takeru Fukuchi ,  Hiroshi Yamaguchi ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Hirofumi Okazaki ,  Keni Yamamoto

IPC分类号： F23M9/00

CPC分类号： F23N5/006 ,  F23C9/08 ,  F23L9/04 ,  F23L15/04 ,  Y02E20/348

摘要： The invention provides a combustion apparatus which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a combustion apparatus provided with a burner burning a fuel within a furnace in a theoretical air ratio or less, and an air port supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region. Further, the invention provides a wind box which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a wind box having an air port arranged in a back flow side of the burner and supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region.

摘要翻译： 本发明提供了即使在促进高温燃烧气体和空气之间的混合的情况下也能够抑制NOx生成以便减少未燃烧的可燃物的燃烧装置。 在具有在理论空气比以下的炉内燃烧燃料的燃烧装置和供给燃烧器不足的燃烧用空气的空气口的情况下，设置供给氮氧化物产生抑制气体的供给装置 在混合区域之间或混合区域之间的混合区域。 此外，本发明提供一种风箱，即使在促进高温燃烧气体和空气之间的混合的情况下也能够抑制NOx的产生，以期减少未燃烧的可燃物。 在具有布置在燃烧器的后流侧的空气口并且供应燃烧器不足的燃烧空气的风箱中，在两者之间的混合区域中提供用于供应氮氧化物产生抑制气体的供应装置， 在混合区附近。

公开(公告)号：US06715432B2

公开(公告)日：2004-04-06

申请号：US10101795

申请日：2002-03-19

申请人： Toshikazu Tsumura ,  Hirofumi Okazaki ,  Miki Shimogori ,  Kenji Kiyama ,  Kouji Kuramashi ,  Hitoshi Kikuchi ,  Yoshitaka Takahashi ,  Shigeki Morita ,  Kazuhito Sakai ,  Masayuki Taniguchi ,  Hironobu Kobayashi

发明人： Toshikazu Tsumura ,  Hirofumi Okazaki ,  Miki Shimogori ,  Kenji Kiyama ,  Kouji Kuramashi ,  Hitoshi Kikuchi ,  Yoshitaka Takahashi ,  Shigeki Morita ,  Kazuhito Sakai ,  Masayuki Taniguchi ,  Hironobu Kobayashi

IPC分类号： F23D100

CPC分类号： F23C6/045 ,  F23C5/32 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23D2201/20 ,  F23D2208/10 ,  F23D2209/20 ,  F23L15/00 ,  Y02E20/348

摘要： According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied from additional air holes or additional air nozzles 12 can be adjusted depending on the combustion load of furnace 41. At a low load, the amount of air supplied from additional air holes or additional air nozzles 12 is increased, whereby the oxygen concentration in a recirculation zones 19 formed downstream of the outside of a fuel nozzle 11 exit, permits a stable combustion. At a high load, the amount of air supplied from additional air holes or additional air nozzles 12 is reduced, whereby a flame is formed in a position far from the fuel nozzle 11. This suppresses thermal radiation onto a solid fuel burner 42 structure and a furnace 41 wall. The solid fuel burner 42 is applicable to combustion using low-quality solid fuel such as brown coal and exhaust gas as the carrier gas.

摘要翻译： 根据本发明的燃烧器，即使在低质量的固体燃料（例如褐煤）的情况下，也能从高负载运行状态到低负载运行状态的宽范围内获得稳定的燃烧。空气量 可以根据炉41的燃烧负荷来调节从附加的空气孔供给的附加的空气喷嘴12或附加的空气喷嘴12.在低负载下，从附加的空气孔或附加的空气喷嘴12供应的空气量增加， 形成在燃料喷嘴11外侧的下游的再循环区域19可以稳定地燃烧。 在高负载下，从附加空气孔或附加空气喷嘴12供应的空气量减少，从而在远离燃料喷嘴11的位置形成火焰。这抑制了对固体燃料燃烧器42结构的热辐射和 炉41墙。 固体燃料燃烧器42适用于使用诸如褐煤和废气的低质量固体燃料作为载气的燃烧。

公开(公告)号：US07922480B2

公开(公告)日：2011-04-12

申请号：US10538524

申请日：2003-08-27

申请人： Kenji Kiyama ,  Shigeki Morita ,  Osamu Okada ,  Koji Kuramashi ,  Takanori Yano ,  Kenichi Ochi ,  Akira Baba ,  Miki Shimogori ,  Takeru Fukuchi ,  Hiroshi Yamaguchi ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Hirofumi Okazaki ,  Kenji Yamamoto

发明人： Kenji Kiyama ,  Shigeki Morita ,  Osamu Okada ,  Koji Kuramashi ,  Takanori Yano ,  Kenichi Ochi ,  Akira Baba ,  Miki Shimogori ,  Takeru Fukuchi ,  Hiroshi Yamaguchi ,  Hironobu Kobayashi ,  Masayuki Taniguchi ,  Hirofumi Okazaki ,  Kenji Yamamoto

IPC分类号： F23M9/00

CPC分类号： F23N5/006 ,  F23C9/08 ,  F23L9/04 ,  F23L15/04 ,  Y02E20/348

摘要： The invention provides a combustion apparatus which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a combustion apparatus provided with a burner burning a fuel within a furnace in a theoretical air ratio or less, and an air port supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region. Further, the invention provides a wind box which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a wind box having an air port arranged in a back flow side of the burner and supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region.

摘要翻译： 本发明提供了即使在促进高温燃烧气体和空气之间的混合的情况下也能够抑制NOx生成以便减少未燃烧的可燃物的燃烧装置。 在具有在理论空气比以下的炉内燃烧燃料的燃烧装置和供给燃烧器不足的燃烧用空气的空气口的情况下，设置供给氮氧化物产生抑制气体的供给装置 在混合区域之间或混合区域之间的混合区域。 此外，本发明提供一种风箱，即使在促进高温燃烧气体和空气之间的混合的情况下也能够抑制NOx的产生，以期减少未燃烧的可燃物。 在具有布置在燃烧器的后流侧的空气口并且供应燃烧器不足的燃烧空气的风箱中，在两者之间的混合区域中提供用于供应氮氧化物产生抑制气体的供应装置， 在混合区附近。

公开(公告)号：US06237510B1

公开(公告)日：2001-05-29

申请号：US09043425

申请日：1998-03-19

申请人： Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

发明人： Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

IPC分类号： F23C110

CPC分类号： F23D1/00 ,  F23C2201/20 ,  F23C2202/40 ,  F23C2900/09002 ,  F23D2201/20 ,  F23D2209/20 ,  F23K2201/103

摘要： A combustion burner includes a mixture nozzle (2) defining a mixture fluid passage through which a mixture fluid (1) containing pulverized coal and conveyor gas flows toward a furnace, secondary and tertiary air passages surrounding the mixture nozzle (2), through which secondary air (6) and tertiary air (9) for combustion purposes flow, respectively; and air injection nozzles (24) provided in the vicinity of an outer periphery of a distal end of the mixture nozzle (2). The air (21) is injected from the air injection nozzles (24) toward the axis of the mixture nozzle, so that the high-temperature gas in the vicinity of the outer periphery of the distal end of the mixture nozzle (2) is drawn into the mixture fluid (1) in the vicinity of the outer periphery of this distal end.

摘要翻译： 燃烧器包括限定混合流体通道的混合喷嘴（2），含有粉煤和输送气体的混合流体（1）通过该混合流体通道流向炉子，二次和三次空气通道围绕混合物喷嘴（2），二次 空气（6）和三次空气（9）分别用于燃烧目的流动; 以及设置在混合喷嘴（2）的前端的外周附近的空气喷射喷嘴（24）。 空气（21）从空气注入喷嘴（24）朝向混合喷嘴的轴线注入，使得混合喷嘴（2）的远端外周附近的高温气体被拉出 在该远端的外周附近的混合流体（1）中。

公开(公告)号：US07878130B2

公开(公告)日：2011-02-01

申请号：US11265198

申请日：2005-11-03

申请人： Kenji Yamamoto ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba ,  Kenichi Ochi ,  Hisayuki Orita ,  Akihito Orii ,  Yuki Kamikawa ,  Kouji Kuramashi

发明人： Kenji Yamamoto ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba ,  Kenichi Ochi ,  Hisayuki Orita ,  Akihito Orii ,  Yuki Kamikawa ,  Kouji Kuramashi

IPC分类号： F23B5/00

CPC分类号： F23L9/04 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23L7/00 ,  F23L2900/07008 ,  F23L2900/07009

摘要： A overfiring air port of the present invention is to supply an incomplete combustion region with air making up for combustion-shortage, in a furnace in which the incomplete combustion region less than stoichiometric ratio is formed by a burner. Furthermore, the airport is characterized by comprising: a nozzle mechanism for injecting air including an axial velocity component of an air flow and a radial velocity component directed to a center line of the airport; and a control mechanism for controlling a ratio of these velocity components.

摘要翻译： 本发明的过燃空气端口是在燃烧器形成不完全燃烧区域小于化学计量比的炉子中，供给不完全燃烧区域的空气来弥补燃烧不足。 此外，机场的特征在于包括：用于喷射空气的喷嘴机构，其包括空气流的轴向速度分量和指向机场的中心线的径向速度分量; 以及用于控制这些速度分量的比率的控制机构。

公开(公告)号：US07681508B2

公开(公告)日：2010-03-23

申请号：US11263035

申请日：2005-11-01

申请人： Masayuki Taniguchi ,  Kenji Yamamoto ,  Hirofumi Okazaki ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba

发明人： Masayuki Taniguchi ,  Kenji Yamamoto ,  Hirofumi Okazaki ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba

IPC分类号： F23B5/00

CPC分类号： F23C6/045 ,  F23C7/02 ,  F23C2201/101 ,  F23C2900/06041 ,  F23L9/00

摘要： An after-air nozzle capable of reducing NOx and CO and a boiler equipped with such a nozzle are provided The after-air nozzle has a vena contracta such that an outside diameter of a flow passage diminishes towards the air-jetting port which supplies air to a boiler, and a changing apparatus changes a flow passage cross-sectional area of the vena contracta. A method of use of such an after-air nozzle and a boiler so equipped is also provided.

摘要翻译： 提供能够还原NO x和CO的空气喷嘴以及配备有这样的喷嘴的锅炉。空气喷嘴具有使得流路的外径向供给空气的空气喷射口减小的静脉收缩 锅炉和改变装置改变流道的横截面积。 还提供了这样的空气喷嘴和如此装备的锅炉的使用方法。

公开(公告)号：US06338304B2

公开(公告)日：2002-01-15

申请号：US09376353

申请日：1999-08-18

申请人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

发明人： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

IPC分类号： F23C110

CPC分类号： F23C5/00 ,  F22B31/00 ,  F23C6/047 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F28F19/00 ,  Y02E20/328

摘要： A boiler has a combustion chamber formed by front and rear walls and a side wall extending between the front and rear walls. Plural stages of burners are placed on at least one of the front and rear walls. In the front and rear walls are opposing gas jets for making a pressure of the gas near the side wall within the combustion chamber higher than the pressure of the gas at a center portion of the combustion chamber. The gas jet ports are disposed at a height within a range of the height of the burner stages. The burner stages supply the pulverized coal, the air for transferring the pulverized coal and the air for burning. A part of the air for transferring the pulverized coal or the air for burning is supplied in a branched manner to the gas jet port and injected into the combustion chamber. Further, the air is preferably injected from the gas jet ports in a direct gas flow, not a swirling flow.

摘要翻译： 锅炉具有由前壁和后壁形成的燃烧室和在前壁和后壁之间延伸的侧壁。 燃烧器的多级放置在前壁和后壁中的至少一个上。 前壁和后壁是相对的气体射流，用于使燃烧室内侧壁附近的气体压力高于燃烧室中心部分处的气体压力。 气体喷射口设置在燃烧器级的高度范围内的高度。 燃烧器阶段供应粉煤，用于转移粉煤的空气和用于燃烧的空气。 将用于转移粉煤或燃烧空气的空气的一部分以分支方式供给到气体喷射口并喷射到燃烧室中。 此外，空气优选地从气体喷射口以直接气流而不是涡流喷射。

公开(公告)号：US6112676A

公开(公告)日：2000-09-05

申请号：US115736

申请日：1998-07-15

申请人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Kouji Kuramashi ,  Shigeki Morita ,  Shin-ichiro Nomura ,  Miki Shimogori

发明人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Kouji Kuramashi ,  Shigeki Morita ,  Shin-ichiro Nomura ,  Miki Shimogori

IPC分类号： F23C99/00 ,  F23D1/00 ,  F23D1/02 ,  F23C1/12

CPC分类号： F23D1/00 ,  F23C2202/40 ,  F23C2900/09002

摘要： A pulverized coal burner includes a pulverized coal nozzle for jetting a mixture of pulverized coal and primary air, a secondary air nozzle and a tertiary air nozzle, concentrically arranged around the outer periphery of the pulverized coal nozzle, and a tube expanded portion at the end of a partition wall separating two adjacent air nozzles. A flow shift means such as a guide plate for shifting the secondary air in the secondary air nozzle so as to flow along the tube expanded portion is provided. The secondary air is jetted outwardly by the guide plate, and mixing of the secondary air and the tertiary air with pulverized coals is delayed, whereby an amount of NOx is decreased.

摘要翻译： 粉煤燃烧器包括用于喷射粉煤和一次空气的混合物的粉煤喷嘴，二次空气喷嘴和三次空气喷嘴，同心地布置在粉煤喷嘴的外周周围，并且在末端的管膨胀部分 分隔两个相邻的空气喷嘴的分隔壁。 提供了诸如用于使二次空气喷嘴中的二次空气沿管扩张部分流动的引导板的流动移动装置。 二次空气被引导板向外喷射，二次空气和三次空气与粉煤混合延迟，从而NOx的量减少。