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公开(公告)号：US10281142B2
公开(公告)日：2019-05-07
申请号：US13381535
申请日：2010-06-07
Applicant: Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
Abstract: A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.
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Patent Agency Ranking
公开(公告)号：US09671108B2
公开(公告)日：2017-06-06
申请号：US14007858
申请日：2012-03-07
Applicant: Keigo Matsumoto , Kazuhiro Domoto , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Kazuhiro Domoto , Naofumi Abe , Jun Kasai
CPC classification number: F23D1/005 , F23C5/32 , F23C6/045 , F23C2201/20 , F23D1/00 , F23D2201/10 , F23D2201/101 , F23D2201/20 , F23D2209/20 , F23K2203/201 , F23L9/00 , F23N3/00 , F23N2021/10
Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
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公开(公告)号：US20120247376A1
公开(公告)日：2012-10-04
申请号：US13388213
申请日：2010-03-11
Applicant: Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
CPC classification number: F23D1/005 , F23C6/045 , F23C2201/20 , F23D1/00 , F23D2201/10 , F23D2201/20 , F23D2209/20
Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)
Abstract translation: 燃烧器1包括喷射通过混合固体燃料和一次空气而制备的燃料气体的燃料喷嘴2，从燃料喷嘴2的外周喷射二次空气的二次空气喷嘴3,4和布置在燃料喷嘴2的外周的火焰保持器5 在燃料喷嘴2的开口中。在燃烧器1中，火焰保持器5具有在燃料气体的流动方向上变宽的分离形状。 当沿着火焰保持器5变宽的方向的横截面中观察时，穿过燃料喷嘴2的中心轴线的横截面为从燃料喷嘴2的中心轴线到火焰加宽端的最大距离h 燃料喷嘴2的开口21的内径r满足h /（r / 2）<0.6。
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4.发明申请COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BOILER, BOILER, AND METHOD FOR OPERATING BOILER 有权燃烧燃烧器，固体燃料燃烧器，固体燃料燃烧锅炉，锅炉和操作锅炉的方法公开(公告)号：US20140011141A1
公开(公告)日：2014-01-09
申请号：US14007858
申请日：2012-03-07
Applicant: Keigo Matsumoto , Kazuhiro Domoto , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Kazuhiro Domoto , Naofumi Abe , Jun Kasai
CPC classification number: F23D1/005 , F23C5/32 , F23C6/045 , F23C2201/20 , F23D1/00 , F23D2201/10 , F23D2201/101 , F23D2201/20 , F23D2209/20 , F23K2203/201 , F23L9/00 , F23N3/00 , F23N2021/10
Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
Abstract translation: 本发明提供一种燃烧器，其特征在于，包括：燃料喷嘴（51），其能够吹入通过将粉煤与一次空气混合而获得的燃料气体; 能够从燃料喷嘴（51）的外部吹出二次空气的二次空气喷嘴（52）; 火焰稳定器（54），其设置在所述燃料喷嘴（51）的前端部处以靠近所述轴心; 以及设置在燃料喷嘴（51）的内壁面和火焰稳定器（54）之间的整流构件（55），其中可以实现通过将固体燃料与空气混合而获得的燃料气体的适当流动。
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公开(公告)号：US09127836B2
公开(公告)日：2015-09-08
申请号：US13388213
申请日：2010-03-11
Applicant: Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
CPC classification number: F23D1/005 , F23C6/045 , F23C2201/20 , F23D1/00 , F23D2201/10 , F23D2201/20 , F23D2209/20
Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)
Abstract translation: 燃烧器1包括喷射通过混合固体燃料和一次空气而制备的燃料气体的燃料喷嘴2，从燃料喷嘴2的外周喷射二次空气的二次空气喷嘴3,4和布置在燃料喷嘴2的外周的火焰保持器5 在燃料喷嘴2的开口中。在燃烧器1中，火焰保持器5具有在燃料气体的流动方向上变宽的分离形状。 当沿着火焰保持器5变宽的方向的横截面中观察时，穿过燃料喷嘴2的中心轴线的横截面为从燃料喷嘴2的中心轴线到火焰加宽端的最大距离h 燃料喷嘴2的开口21的内径r满足h /（r / 2）<0.6。
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公开(公告)号：US20120152158A1
公开(公告)日：2012-06-21
申请号：US13381535
申请日：2010-06-07
Applicant: Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
Inventor： Keigo Matsumoto , Koutaro Fujimura , Kazuhiro Domoto , Toshimitsu Ichinose , Naofumi Abe , Jun Kasai
CPC classification number: F23D1/00 , F23C6/045 , F23C2201/101 , F23C2201/20
Abstract: A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.
Abstract translation: 提供一种固体燃料燃烧式燃烧器，其抑制形成在火焰外周的高温氧剩余区域，并且可以减少最终产生的NOx的量。 一种固体燃料燃烧式燃烧器，其用于固体燃料燃烧锅炉的燃烧器部分，用于在燃烧器部分和附加空气喷射部分中单独进行低NOx燃烧，并且喷射粉末状固体燃料和空气 包括具有内部火焰稳定性的燃料燃烧器和不进行火焰稳定化的二次空气喷射口，其中燃料燃烧器中的空气比设定在0.85以上。
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