Burners having at least three air feed ducts, including an axial air duct and a rotary air duct concentric with at least one fuel feed, and a central stabilizer

    公开(公告)号:US06315551B1

    公开(公告)日:2001-11-13

    申请号:US09566830

    申请日:2000-05-08

    CPC classification number: F23D14/24 F23D17/005

    Abstract: The technical field of the invention is making a burner capable of using one or more fuels, optionally simultaneously, together with particular features for the gas feed ducts. Such a burner comprises at least four substantially concentric ducts for feeding fuel and primary combustion air, including a duct for axial air and a duct for rotary air disposed outside any fuel outlet opening, and a central stabilizer placed at the outlet of a central primary air delivery duct opening out through orifices of said stabilizer, which stabilizer projects radially relative to any opening of a tube placed inside said central primary air duct and inside which a fuel pipe opens out. According to the invention, said burner has at least one additional gas feed opening out into said stabilizer and disposed around said opening having any diameter lying between the tube within which the fuel pipe opens out and the outer tube defining the central primary air delivery duct.

    Abstract translation: 本发明的技术领域是制造能够使用一种或多种燃料(可选地同时使用)的燃烧器,以及气体供给管道的特定特征。 这种燃烧器包括用于供给燃料和初级燃烧空气的至少四个基本上同心的管道,包括用于轴向空气的管道和设置在任何燃料出口开口外部的旋转空气的管道,以及放置在中央主空气出口处的中心稳定器 输送管道通过所述稳定器的孔口开口,所述稳定器相对于放置在所述中央主空气管道内部的管的任何开口径向地突出,并且燃料管在其内打开。 根据本发明,所述燃烧器具有至少一个额外的气体进料口,通向所述稳定器并且围绕所述开口设置,所述开口具有位于燃料管打开的管之间的任何直径和限定中央主空气输送管的外管。

    Self-cooled oxygen-fuel for use in high-temperature and high-particulate furnaces
    2.
    发明授权
    Self-cooled oxygen-fuel for use in high-temperature and high-particulate furnaces 有权
    用于高温和高颗粒炉的自冷式氧气

    公开(公告)号:US06276924B1

    公开(公告)日:2001-08-21

    申请号:US09668789

    申请日:2000-09-22

    Abstract: A self-cooled oxidant-fuel burner consisting novel fuel and oxidant nozzles and three compartment refractory burner block design is proposed. The new oxidant-fuel burner can fire in high-temperature (2200° F. to 3000° F.) and high-particulate (or high process volatiles/condensates) furnaces without over-heating or causing chemical corrosion damage to it's metallic burner nozzle and refractory burner block interior. Using various embodiments of nozzle and block shape, the burner can offer a traditional cylindrical flame or flat flame depending on the heating load requirements. The new features of this burner include unique fuel nozzle design for the streamline mixing of fuel and oxidant streams, a controlled swirl input to the oxidant flow for desired flame characteristics, a controlled expansion of flame envelope in the radial and axial dimensions, and efficient sweeping of burner block interior surface using oxidant to provide convective cooling and prevent any build up of process particulates. In addition, a relatively thick wall metallic nozzle construction with heat conduction fins enable efficient heat dissipation from the nozzle tip and providing a maintenance free burner operation.

    Abstract translation: 提出了一种自燃氧化剂 - 燃料燃烧器,其包括新型燃料和氧化剂喷嘴和三室耐火燃烧器块设计。 新的氧化剂 - 燃料燃烧器可以在高温(2200°F至3000°F)和高颗粒(或高过程挥发性/冷凝物)炉中燃烧,而不会过度加热或对其金属燃烧器喷嘴造成化学腐蚀损坏 和耐火燃烧器内部。 使用喷嘴和块形状的各种实施例,燃烧器可以根据加热负载要求提供传统的圆柱形火焰或平坦火焰。 这种燃烧器的新特点包括独特的燃油喷嘴设计,用于燃料和氧化剂流的流线混合,对氧化剂流的控制旋流输入,以获得所需的火焰特性,在径向和轴向尺寸上控制火焰包络的膨胀,以及高效清扫 的燃烧器内部表面使用氧化剂来提供对流冷却并防止过程颗粒的任何积聚。 此外,具有导热翅片的相对厚的壁金属喷嘴结构使得能够从喷嘴尖端有效地散热并且提供免维护的燃烧器操作。

    Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces
    3.
    发明授权
    Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces 有权
    用于高温和高颗粒炉的自冷氧燃料燃烧器

    公开(公告)号:US06210151B1

    公开(公告)日:2001-04-03

    申请号:US09571241

    申请日:2000-05-16

    Abstract: A self-cooled oxidant-fuel burner consisting novel fuel and oxidant nozzles and three compartment refractory burner block design is proposed. The new oxidant-fuel burner can fire in high-temperature (2200° F. to 3000° F.) and high-particulate (or high process volatiles/condensates) furnaces without over-heating or causing chemical corrosion damage to it's metallic burner nozzle and refractory burner block interior. Using various embodiments of nozzle and block shape, the burner can offer a traditional cylindrical flame or flat flame depending on the heating load requirements. The new features of this burner include unique fuel nozzle design for the streamline mixing of fuel and oxidant streams, a controlled swirl input to the oxidant flow for desired flame characteristics, a controlled expansion of flame envelope in the radial and axial dimensions, and efficient sweeping of burner block interior surface using oxidant to provide convective cooling and prevent any build up of process particulates. In addition, a relatively thick wall metallic nozzle construction with heat conduction fins enable efficient heat dissipation from the nozzle tip and providing a maintenance free burner operation.

    Abstract translation: 提出了一种自燃氧化剂 - 燃料燃烧器,其包括新型燃料和氧化剂喷嘴和三室耐火燃烧器块设计。 新的氧化剂 - 燃料燃烧器可以在高温(2200°F至3000°F)和高颗粒(或高过程挥发性/冷凝物)炉中起火,而不会过度加热或对其金属燃烧器喷嘴造成化学腐蚀损坏 和耐火燃烧器内部。 使用喷嘴和块形状的各种实施例,燃烧器可以根据加热负载要求提供传统的圆柱形火焰或平坦火焰。 这种燃烧器的新特点包括独特的燃油喷嘴设计,用于燃料和氧化剂流的流线混合,对氧化剂流的受控涡流输入,以获得所需的火焰特性,在径向和轴向尺寸上控制火焰包络的膨胀,以及有效的清扫 的燃烧器内部表面使用氧化剂来提供对流冷却并防止过程颗粒的任何积聚。 此外,具有导热翅片的相对厚的壁金属喷嘴结构使得能够从喷嘴尖端有效地散热并且提供免维护的燃烧器操作。

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