Method for operating a boiler using oxygen-enriched oxidants
    1.
    发明授权
    Method for operating a boiler using oxygen-enriched oxidants 有权
    使用富氧氧化剂操作锅炉的方法

    公开(公告)号:US06418865B2

    公开(公告)日:2002-07-16

    申请号:US09748522

    申请日:2000-12-22

    IPC分类号: F23B700

    摘要: A method for operating a boiler using oxygen-enriched oxidants includes introducing oxygen-enriched air, or oxygen and air, in which the oxygen concentration ranges from about 21% to about 100% by volume. Fuel and oxygen-enriched air are introduced into the combustion space within the steam-generating boiler. The fuel and oxygen-enriched air is combusted to generate thermal energy. At least a portion of the flue gases are collected and at least a portion are recirculated through the boiler. In the steam-generating boiler, the oxygen-enriched oxidant is introduced at one or more locations within the radiation zone and the convection zone of the boiler. Additionally, flue gas is collected and recirculated into one or more locations within the radiation zone and/or the convection zone of the boiler. The amount of oxygen enrichment and the total gas flow through the boiler is controlled so as to maintain the heat transfer patterns within the boiler at the originally-design specification for operation by air combustion.

    摘要翻译: 使用富氧氧化剂操作锅炉的方法包括引入富氧空气或氧气和空气,其中氧浓度范围为约21体积%至约100体积%。 燃料和富氧空气被引入蒸汽发生锅炉内的燃烧空间。 燃料和富氧空气燃烧产生热能。 烟道气的至少一部分被收集,并且至少一部分通过锅炉再循环。 在蒸汽发生锅炉中,富氧氧化剂被引入到辐射区域和锅炉对流区域内的一个或多个位置处。 此外,烟道气被收集并再循环到辐射区域和/或锅炉的对流区域内的一个或多个位置。 控制富氧量和通过锅炉的总气体流量,以便保持锅炉内的热传递模式为原始设计规范,以便通过空气燃烧进行操作。

    Method for operating a boiler using oxygen-enriched oxidants

    公开(公告)号:US06532881B2

    公开(公告)日:2003-03-18

    申请号:US10142179

    申请日:2002-05-09

    IPC分类号: F32B700

    摘要: A method for operating a boiler using oxygen-enriched oxidants includes introducing oxygen-enriched air, or oxygen and air, in which the oxygen concentration ranges from about 21% to about 100% by volume. Fuel and oxygen-enriched air are introduced into the combustion space within the steam-generating boiler. The fuel and oxygen-enriched air is combusted to generate thermal energy. At least a portion of the flue gases are collected and at least a portion are recirculated through the boiler. In the steam-generating boiler, the oxygen-enriched oxidant is introduced at one or more locations within the radiation zone and the convection zone of the boiler. Additionally, flue gas is collected and recirculated into one or more locations within the radiation zone and/or the convection zone of the boiler. The amount of oxygen enrichment and the total gas flow through the boiler is controlled so as to maintain the heat transfer patterns within the boiler at the originally-design specification for operation by air combustion.

    Method for operating a boiler using oxygen-enriched oxidants

    公开(公告)号:US06314896B1

    公开(公告)日:2001-11-13

    申请号:US09437526

    申请日:1999-11-10

    IPC分类号: F23C900

    摘要: A method for operating a boiler using oxygen-enriched oxidants includes introducing oxygen-enriched air, or oxygen and air, in which the oxygen concentration ranges from about 21% to about 100% by volume. Fuel and oxygen-enriched air are introduced into the combustion space within the steam-generating boiler. The fuel and oxygen-enriched air is combusted to generate thermal energy. At least a portion of the flue gases are collected and at least a portion are recirculated through the boiler. In the steam-generating boiler, the oxygen-enriched oxidant is introduced at one or more locations within the radiation zone and the convection zone of the boiler. Additionally, flue gas is collected and recirculated into one or more locations within the radiation zone and/or the convection zone of the boiler. The amount of oxygen enrichment and the total gas flow through the boiler is controlled so as to maintain the heat transfer patterns within the boiler at the originally-design specification for operation by air combustion.