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公开(公告)号:US3890084A
公开(公告)日:1975-06-17
申请号:US40077473
申请日:1973-09-26
申请人: COEN CO
发明人: VOORHEIS TEMPLE S , VOSPER RALPH R
CPC分类号: F23B5/00 , F23B2700/022
摘要: NOx exhaust emissions from furnace or boiler burners are reduced by combusting fuel with low excess air (about 5 percent more air than the theoretically required minimum air volume). The fuel is combusted so that the maximum flame temperatures are less than the theoretically obtainable maximum temperature. This is achieved by cooling flames in the chamber through contact with combustion chamber walls and by combusting central portions of the flames in two stages. Burners in a vertically lower burner bank are initially fired with insufficient air and burners in an upper burner bank are fired with additional air to make up for the air deficiency of the lower burners. The additional air is intermixed with the uncombusted fuel from the lower burners and such fuel is burned at a later stage downstream of and spaced from the burners. The additional air supplied from the burners in the upper row is measured to provide the above stated total of 5 percent excess air for the furnace.
摘要翻译: 通过燃烧具有低过剩空气的燃料来减少来自炉或锅炉燃烧器的NOx排放(比理论上所需的最小风量大约多5%的空气)。 燃料燃烧,使得最大火焰温度小于理论上可获得的最高温度。 这是通过与燃烧室壁接触并通过两个阶段燃烧火焰的中心部分来冷却腔室中的火焰来实现的。 最初在较低燃烧器组中的燃烧器以不足的空气进行燃烧,并且在上部燃烧器组中的燃烧器用额外的空气进行燃烧以弥补下部燃烧器的空气不足。 额外的空气与来自下燃烧器的未燃燃料混合,并且这种燃料在燃烧器下游和与燃烧器间隔开的后期被燃烧。 测量从上排的燃烧器供应的附加空气,以提供上述总共5%的过量空气用于炉。
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公开(公告)号:US3609073A
公开(公告)日:1971-09-28
申请号:US3609073D
申请日:1969-02-24
申请人: DICKINSON S LTD
发明人: ROBINSON EDGAR C
CPC分类号: F23K5/04 , F23C9/06 , F23K5/145 , Y10T137/86163
摘要: A fuel pump unit and burner combination, an air oil mixture being recirculated vertically upwards through a central blast chamber of said burner from there outwardly and downwardly through a surrounding chamber and then again through said blast chamber for preheating prior to combustion, a refractory ring and inversion cap being positioned in the surrounding chamber and spaced above the blast chamber said unit having means for delivering only low pressure primary air and oil at atmospheric pressure to said burner.
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公开(公告)号:US2024197A
公开(公告)日:1935-12-17
申请号:US43138530
申请日:1930-02-26
申请人: FULLER LEHIGH CO
发明人: BAILEY ERVIN G , HARDGROVE RALPH M
CPC分类号: F23B5/02
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公开(公告)号:US20230288058A1
公开(公告)日:2023-09-14
申请号:US18153778
申请日:2023-01-12
申请人: UOP LLC
IPC分类号: F23C6/04 , F23C9/06 , G06Q30/018
CPC分类号: F23C6/045 , F23C9/06 , G06Q30/018 , G06Q2220/00
摘要: Processes and apparatuses for heating process fluid in a furnace. Fuel to the furnace is either hydrocarbons or hydrogen. The fuels may be sent to different furnaces or be sent at different times to the same furnace. Furnaces that are configured to receive both types of fuels may have different exhaust paths. An exhaust path for hydrocarbon fuel flue gas includes a carbon capture process zone.
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公开(公告)号:US11156356B2
公开(公告)日:2021-10-26
申请号:US16410959
申请日:2019-05-13
IPC分类号: F23C6/04 , F23C99/00 , F23N5/26 , F27D11/06 , F23D14/24 , F23D14/84 , F23D14/02 , F23D14/14 , F23D11/42 , F23D11/44 , F23N5/10 , F23N5/00 , F23N1/00 , F23D14/74 , F23D11/02 , F23D11/38 , F23D11/40 , F23L7/00 , F23C9/06 , F23D14/26 , F23N1/02
摘要: A combustion system such as a furnace or boiler includes a perforated reaction holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).
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公开(公告)号:US10900420B2
公开(公告)日:2021-01-26
申请号:US16042830
申请日:2018-07-23
发明人: Eugene Delano White
IPC分类号: F02C9/26 , F02C3/34 , F01D17/08 , F02C7/228 , F02C9/28 , G01M15/14 , G01M15/10 , F23N5/00 , F23C9/06 , G05B15/02
摘要: In an embodiment, a method includes performing a turbine combustor diagnostic routine including operating a first turbine combustor of a plurality of turbine combustors at a substantially steady state of combustion; adjusting an operational parameter of the first turbine combustor to cause a change in combustion products produced by the first turbine combustor; identifying a first sensor response of a first subset of a plurality of sensors disposed within or downstream from a turbine fluidly coupled to the turbine combustor, the first sensor response being indicative of the change in the combustion products, and wherein the first subset comprises one or more first sensors; correlating the first subset of sensors with the first turbine combustor; and diagnosing a condition of the first subset of the plurality of sensors, the first turbine combustor, or a combination thereof, based on the first sensor response.
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公开(公告)号:US10767556B2
公开(公告)日:2020-09-08
申请号:US15999280
申请日:2017-02-10
发明人: Ghenadie Bulat , Timothy Hughes , Jonathan May , Ian Wilkinson
IPC分类号: F02C3/24 , F23C9/06 , F23C6/04 , F02C3/20 , F02C3/34 , F01K23/10 , F01K23/18 , F02C3/22 , F02C6/04
摘要: A method for the combustion of ammonia, wherein a first combustion chamber receives ammonia and hydrogen in controlled proportions, and an oxygen-containing gas. Combustion of the ammonia and hydrogen produces NH2 ions among other combustion products. A second combustion chamber receives the combustion products from the first combustion chamber and receives further ammonia and further hydrogen in controlled proportions, wherein combustion produces nitrogen oxides among other combustion products. A third combustion chamber receives the nitrogen oxides along with further ammonia and further hydrogen in further controlled proportions along with further oxygen-containing gas, such that the nitrogen oxides are combusted into nitrogen and water.
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公开(公告)号:US10451271B2
公开(公告)日:2019-10-22
申请号:US15849354
申请日:2017-12-20
摘要: The pre-mix burner assembly includes a jet pump comprising a combustion air tube, a flue gas inlet, and a suction chamber. The combustion air tube has an inlet and a tapered nozzle, and it is connected to a combustion gas fan. The flue gas inlet is connected to the suction chamber and the furnace chamber or other flue gas source. The suction chamber surrounds the combustion air tube, and it has a jet pump nozzle with a discharge. The combustion air exiting the combustion air nozzle creates a negative pressure in the suction chamber and draws flue gas into the suction chamber. There is a burner housing positioned downstream of the jet pump discharge. There is a fuel gas inlet connected to a mixing tube in the burner housing, and a burner block connected to the outlet of the burner housing.
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公开(公告)号:US10392284B2
公开(公告)日:2019-08-27
申请号:US15109229
申请日:2016-04-14
IPC分类号: F23C5/00 , C03B5/235 , C03B5/237 , F23L7/00 , F23C9/00 , F23L15/02 , F23C9/06 , F23D14/22 , F23D14/66 , F23M5/02
摘要: A combustion method in which heated flue gas heats a regenerator through which a mixture of fuel and flue gas is then passed to undergo endothermic reactions that produce syngas which is fed into a furnace together with a motive gas stream.
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公开(公告)号:US20190186732A1
公开(公告)日:2019-06-20
申请号:US15849342
申请日:2017-12-20
CPC分类号: F23C6/042 , F23C3/002 , F23C7/06 , F23C9/00 , F23C9/06 , F23C2201/101 , F23C2201/20 , F23C2202/10 , F23C2202/30 , F23C2900/09002 , F23D14/02 , F23D14/64 , F23L7/00
摘要: The pre-mix burner assembly includes a jet pump comprising a suction chamber, a flue gas inlet, and a combustion air tube with a combustion air nozzle. The combustion air inlet includes a combustion air tube with a tapered nozzle, and it is connected to a combustion air fan. The flue gas inlet is connected to the suction chamber and the combustion air fan. The suction chamber surrounds the combustion air tube, and it has a jet pump nozzle with a discharge. The assembly includes a fuel gas inlet connected to the combustion air tube. The combustion air and fuel gas mixture exits the combustion air nozzle creating a negative pressure in the suction chamber and drawing flue gas into the suction chamber. The assembly includes a mixing tube positioned downstream of the jet pump discharge, and a burner block connected to an outlet of the mixing tube.
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