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公开(公告)号：EP0809068B1
公开(公告)日：2003-11-12
申请号：EP97108022.1
申请日：1997-05-16
IPC分类号： F23D1/00
CPC分类号： F23D1/00 , F23D2201/20 , F23D2209/20
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2.发明公开After-air nozzle for two-stage combustion boiler, two-stage combustion boiler and combustion method using the same 审中-公开二次空气喷嘴，用于锅炉用两阶段燃烧锅炉具有两级燃烧和两阶段燃烧过程
公开(公告)号：EP1653152A3
公开(公告)日：2012-09-19
申请号：EP05023888.0
申请日：2005-11-02
发明人： Taniguchi, Masayuki , Yamamoto, Kenji , Okazaki, Hirofumi , Yasuda, Kazumi , Kiyama, Kenji , Yano, Takanori , Baba, Akira
CPC分类号： F23C6/045 , F23C7/02 , F23C2201/101 , F23C2900/06041 , F23L9/00
摘要： This invention provides an after-air nozzle and a boiler having thereof capable of reducing NOx and CO at the same time.
This invention is characterized in that it has a vena contracta (24) such that an outside diameter of a flow passage diminishes towards the air-jetting port (16) which supplies air to a boiler (18), and a changing apparatus (26-32) of a flow passage cross-sectional area to change a flow passage cross-sectional area of the vena contracta (24).
Using the after-air nozzle of this invention makes it possible to reduce NOx and CO concentrations at the same time.-
3.发明公开After-air nozzle for two-stage combustion boiler, two-stage combustion boiler and combustion method using the same 审中-公开二次空气喷嘴，用于锅炉用两阶段燃烧锅炉具有两级燃烧和两阶段燃烧过程
公开(公告)号：EP1653152A2
公开(公告)日：2006-05-03
申请号：EP05023888.0
申请日：2005-11-02
发明人： Taniguchi, Masayuki , Yamamoto, Kenji , Okazaki, Hirofumi , Yasuda, Kazumi , Kiyama, Kenji , Yano, Takanori , Baba, Akira
CPC分类号： F23C6/045 , F23C7/02 , F23C2201/101 , F23C2900/06041 , F23L9/00
摘要： This invention provides an after-air nozzle and a boiler having thereof capable of reducing NOx and CO at the same time.
This invention is characterized in that it has a vena contracta (24) such that an outside diameter of a flow passage diminishes towards the air-jetting port (16) which supplies air to a boiler (18), and a changing apparatus (26-32) of a flow passage cross-sectional area to change a flow passage cross-sectional area of the vena contracta (24).
Using the after-air nozzle of this invention makes it possible to reduce NOx and CO concentrations at the same time.摘要翻译： 本发明提供了对后空气喷嘴和具有能够减少NOx和CO在在Sametime的它们的锅炉。 本发明的特征DASS它有一个缩（24）检测到那样的流路的外直径减小向所述通气喷射口（16），其将空气供给到锅炉（18），以及变更装置（26- 的流路截面积的32）来改变缩（24）的流路截面积。 使用后的空气喷嘴本发明使得有可能降低NOx和CO浓度在Sametime中。
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公开(公告)号：EP1505341A1
公开(公告)日：2005-02-09
申请号：EP04022690.4
申请日：1999-08-02
CPC分类号： F23C5/00 , F22B31/00 , F23C6/047 , F23C7/008 , F23C7/02 , F23C2201/101 , F28F19/00 , Y02E20/328
摘要： The invention provides a boiler provided with low cost means which can reduce a concentration of CO, an unburned matter, an attached ash and the like near a side wall and maintain a combustion state well with a simple structure. In a boiler having a combustion chamber 13 formed by front and rear walls (burner walls) provided with a plural stages of burners 2, 3 and 4 on at least one of them and opposing to each other, and side walls 1a and 1b crossing to said burner walls 14a and 14b, a gas port 6 containing no fuel for making a pressure of a gas near said side walls 1a and 1b within said combustion chamber 13 higher than a pressure of a gas at a center portion of said combustion chamber 13 is provided between an outermost burner and the side walls 1a and 1b within a range of a height of said burner stages 2, 3 and 4. A combustion gas 16 can not come close to the side walls 1a and 1b due to the jet 18 of the gas.
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公开(公告)号：EP1335164A1
公开(公告)日：2003-08-13
申请号：EP03007462.9
申请日：1997-04-30
发明人： Tsumura, Toshikazu , Kiyama, Kenji , Jimbo, Tadashi , Morita, Shigeki , Kuramashi, Koji , Okiura, Kunio , Nomura, Shinichiro , Mori, Miki , Ohyatsu, Noriyuki , Takarayama, Noboru , Mine, Toshihiko , Kobayashi, Hironobu , Okazaki, Hirofumi
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 rthe 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），次级 分别用于燃烧目的的空气（6）和三次空气（9）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喷射，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。
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公开(公告)号：EP0690264A3
公开(公告)日：1997-01-29
申请号：EP95109995.1
申请日：1995-06-27
发明人： Kobayashi, Hironobu , Narato, Kiyoshi , Taniguchi, Masayuki , Kouno, Tsuyoshi , Okazaki, Hirofumi , Morita, Shigeki , Tsumura, Toshikazu
CPC分类号： F23C7/006 , F23D1/00 , F23D17/007
摘要： To provide a pulverized coal burner capable of reducing the NOx concentration at the time of a low load, a pulverized coal burner includes a secondary air nozzle (103) and a tertiary air nozzle (104) concentrically positioned about the outer periphery of a fuel nozzle (102) carrying a pulverized coal with a primary air (135), and two swirling flow generators (113, 114) are included at least one of these nozzles (104) with a positional relation parallel to a flow of air. One of the swirling flow of the two swirling flow generators (113, 114) can be set strongly. And, under a condition of low air flow rate, air can be supplied from one swirling flow generator (112) alone. Since the swirling strength of the combustion air can be increased, the concentration of NOx produced by the combustion of the pulverized coal can be reduced. Since the swirling strength at the time of the low load can be increased, the NOx concentration can be reduced by keeping the pulverized coal flame stable.
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公开(公告)号：EP0672863A3
公开(公告)日：1996-05-29
申请号：EP95301785.2
申请日：1995-03-17
发明人： Narato, Kiyoshi , Kobayashi, Hironobu , Taniguchi, Masayuki , Kohno, Tsuyoshi , Okazaki, Hirofumi , Ito, Kazuyuki , Morita, Shigeki , Baba, Akira
CPC分类号： F23D1/00 , F23C6/047 , F23C9/006 , F23C2201/301 , F23K3/02
摘要： A pulverized coal combustion burner includes a pulverized coal nozzle (1), and secondary and tertiary air nozzles (70,80) provided in concentric relation to the pulverized coal nozzle. A flame stabilizing ring (5) is provided at an outlet end of the pulverized coal nozzle. A separation wall (2) is provided within the pulverized coal nozzle to divide a passage in this nozzle into two passages. A pulverized coal/air mixture flows straight through the two passages, so that recirculation flows of the pulverized coal/air mixture are formed in proximity to the outlet end of the pulverized coal nozzle. As a result, the ignitability of the pulverized coal, as well as a combustion rate, is enhanced, thereby reducing the amount of discharge of NOx.
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8.发明公开
公开(公告)号：EP1530005A3
公开(公告)日：2008-08-27
申请号：EP04026725.4
申请日：2004-11-10
CPC分类号： F23D1/00 , F23D2201/20 , F23D2201/30
摘要： Subject
A solid fuel burner and its combustion method suited for encouraging fuel ignition and avoiding slugging caused by combustion ash, wherein a gas of low oxygen concentration (exhaust combustion gas) is used as a carrier gas of such a low grade solid fuel as brown coal.
Means for Solving the Subject
An additional air nozzle (12) for jetting additional air having a velocity component in the circumferential direction of a fuel nozzle (11) is provided in the fuel nozzle (11), thereby encouraging mixing between the fuel and air in the fuel nozzle (11). Further, the amount of air supplied from the additional air nozzle (12) is adjusted in response to the difference in combustion loads. Under light load, the amount of air supplied from the additional air nozzle (12) is increased so as to increase the oxygen concentration of the circulating flow (19) formed downstream of the outside of the outlet of the fuel nozzle (11), whereby stable combustion is ensured. Under heavy load, by contrast, the amount of air supplied from the additional air nozzle (12) is decreased, and a flame is formed away from the fuel nozzle (11) in such a way that burner structures and furnace wall will be less subjected to radiant heat.-
9.发明公开
公开(公告)号：EP1655539A1
公开(公告)日：2006-05-10
申请号：EP05024101.7
申请日：2005-11-04
发明人： Yamamoto, Kenji , Okazaki, Hirofumi , Taniguchi, Masayuki , Yasuda, Kazumi , Kiyama, Kenji , Yano, Takanori , Baba, Akira , Ochi, Kenichi , Orita, Hisayuki , Orii, Akihito , Kamikawa, Yuki , Kuramashi, Kouji
CPC分类号： F23L9/04 , F23C7/008 , F23C2201/101 , F23D1/00 , F23L7/00 , F23L2900/07008 , F23L2900/07009
摘要： An overfiring air port (100) 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 air port (100) ; and a control mechanism for controlling a ratio of these velocity components.
摘要翻译： 本发明的超燃空气口（100）是在不燃烧区域由燃烧器形成的化学计量比小于化学计量比的情况下，向不完全燃烧区域供给具有弥补燃烧不足的空气。 此外，机场的特征在于包括：用于喷射空气的喷嘴机构，包括空气流的轴向速度分量和朝向空气端口（100）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。
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10.发明公开
公开(公告)号：EP1580486A1
公开(公告)日：2005-09-28
申请号：EP05003484.2
申请日：2005-02-18
发明人： Yamamoto, Kenji , Okazaki, Hirofumi , Itou, Osamu , Taniguchi, Masayuki , Yano, Takanori , Kiyama, Kenji , Kuramashi, Kouji
CPC分类号： F23C7/008 , F23D2900/00003 , F23D2900/11402
摘要： In a burner of construction having a primary nozzle (4), a secondary nozzle (8) and a tertiary nozzle (9), a partition wall (1, 2) partitioning the secondary nozzle (8) and the tertiary nozzle (9) and having a flow path change member (3) provided thereon, the partition wall (2) is formed so as to be movable in parallel to the burner axis to control jetting speeds and flow rates of secondary air and tertiary air, whereby it is possible to cool the burner constituent members while reducing NOx. The partition wall (1, 2) is composed of a fixed wall (1) and a movable wall (2). The burner comprises a bypass passage (16, 19) through which tertiary air in the tertiary nozzle (9) bypasses the tertiary nozzle to flow into the secondary nozzle (8) or the primary nozzle (4).
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