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公开(公告)号:US06334769B1
公开(公告)日:2002-01-01
申请号:US09361774
申请日:1999-07-27
IPC分类号: F23D340
CPC分类号: F23C13/00 , F23C2900/99006 , F23R3/40
摘要: A catalytic combustor burns a fuel-air mixture which is not preheated. The combustor includes a strip or strips of metal which define a plurality of alternating wide and narrow channels. The channels contain corrugated strips which maintain the spacing of the channels. A catalyst coating is deposited only in the wider channels, the narrower channels remaining un-catalyzed. The strip or strips can be heated resistively to start the combustion. Once the combustion is started, the electric current is stopped, and the combustion continues. The combustor is useful in a home heating appliance such as a gas furnace. In another embodiment, in which the combustor is used in a high-temperature environment such as in a gas turbine, the catalyst can be deposited in the small channels only, so as to limit the amount of catalytic combustion.
摘要翻译: 催化燃烧器燃烧未预热的燃料 - 空气混合物。 燃烧器包括一条或多条金属条,其限定多个交替的宽而窄的通道。 通道包含维持通道间隔的波纹条。 催化剂涂层仅沉积在较宽的通道中,较窄的通道保持未催化。 带材可以被电阻加热以开始燃烧。 一旦燃烧开始,电流停止,燃烧持续。 该燃烧器可用于诸如气体炉的家用加热器具。 在燃烧器在诸如燃气轮机的高温环境中使用的另一实施例中,催化剂仅能沉积在小通道中,以限制催化燃烧的量。
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公开(公告)号:US5718573A
公开(公告)日:1998-02-17
申请号:US364378
申请日:1994-12-27
摘要: A flashback resistant burner for lean fuel/air mixtures includes apparatus for mixing a primary fuel and combustion air to form a noncombustible fuel/air mixture. Means are provided for accelerating the noncombustible fuel/air mixture to a velocity higher than the flame speed of a combustible mixture of the primary fuel and air. Means are further provided for mixing a secondary fuel with the accelerated noncombustible fuel/air mixture to form a combustible fuel/air mixture that has an equivalence ratio less than 1. Means are then provided for burning the combustible fuel/air mixture.
摘要翻译: 用于贫燃料/空气混合物的防回火燃烧器包括用于混合主燃料和燃烧空气以形成不燃燃料/空气混合物的装置。 提供了用于将不可燃燃料/空气混合物加速到高于主要燃料和空气的可燃混合物的火焰速度的速度的装置。 进一步提供了用于将二次燃料与加速的不燃燃料/空气混合物混合以形成具有小于1的当量比的可燃燃料/空气混合物的装置,然后提供用于燃烧可燃燃料/空气混合物的装置。
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公开(公告)号:US5848887A
公开(公告)日:1998-12-15
申请号:US753564
申请日:1996-11-26
CPC分类号: F23C13/00 , F24H3/105 , F23C2201/20 , F23C2203/20 , F24H1/0045
摘要: A low emission combustion system for use in a fuel-fired apparatus includes a fuel-fired burner (30) operative for generating a flame extending substantially axially outwardly from the outlet of the burner, a heat transfer tube (40) opposed to the outlet of the burner whereby the flame extending from said burner passes into a flame inlet section (48) of the gas flow conduit (46) of the heat transfer tube, a radiator body (50) disposed within the flame inlet section of the gas flow conduit of the heat transfer tube, and a catalytic converter (60) for oxidizing carbon monoxide to carbon dioxide. The radiator body (50) has a thermal mass sufficient to reduce peak flame temperatures in the flame inlet section to less than 2800 F. The catalytic converter is disposed within the gas flow conduit at a location downstream of the radiator body.
摘要翻译: 用于燃料燃烧装置的低排放燃烧系统包括燃烧燃烧的燃烧器(30),其用于产生从燃烧器的出口基本轴向向外延伸的火焰;传热管(40),其与出口 燃烧器,其中从所述燃烧器延伸的火焰进入传热管的气体流动导管(46)的火焰入口部分(48);散热器主体(50),其设置在气体导管 传热管和用于将一氧化碳氧化成二氧化碳的催化转化器(60)。 散热器主体(50)具有足以将火焰入口部分中的火焰峰值温度降低到小于2800的热质量。催化转化器设置在散热器主体下游位置处的气体流动管道内。
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