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公开(公告)号：US09476588B2
公开(公告)日：2016-10-25
申请号：US13877522
申请日：2011-10-21
申请人： Hirofumi Okazaki , Koji Kuramashi , Hideo Okimoto , Kenichi Ochi , Naoya Imooka , Pauli Dernjatin
发明人： Hirofumi Okazaki , Koji Kuramashi , Hideo Okimoto , Kenichi Ochi , Naoya Imooka , Pauli Dernjatin
CPC分类号： F23L7/007 , F23C9/00 , F23C9/003 , F23L2900/07001 , F23L2900/07005 , F23L2900/07006 , F23N3/002 , F23N2021/12 , F23N2037/26 , Y02E20/322 , Y02E20/344
摘要： A boiler operating method operates a boiler by switching between air combustion mode and oxygen combustion mode when burning fossil fuel with first combustion gas and second combustion gas. The second combustion gas compensates for oxygen deficiency in the first combustion gas. The air combustion mode uses air as the first combustion gas and the second combustion gas while the oxygen combustion mode uses mixed gas of combustion flue gas and oxygen-rich gas as the first combustion gas and the second combustion gas, the combustion flue gas being produced when the fossil fuel is burned. By mixing the oxygen-rich gas in the air in the process of switching between air combustion mode and oxygen combustion mode, the air being the first combustion gas used in the air combustion mode, the boiler operating method can switch between the air combustion mode and oxygen combustion mode while maintaining stable combustion.
摘要翻译： 锅炉操作方法通过在用第一燃烧气体和第二燃烧气体燃烧化石燃料时，在空气燃烧模式和氧气燃烧模式之间切换来操作锅炉。 第二燃烧气体补偿第一燃烧气体中的氧缺乏。 空气燃烧模式使用空气作为第一燃烧气体和第二燃烧气体，而氧气燃烧模式使用燃烧烟道气和富氧气体的混合气体作为第一燃烧气体和第二燃烧气体，生成燃烧烟道气 当化石燃料燃烧时。 通过在空气燃烧模式和氧气燃烧模式之间切换过程中将富氧气体混合在空气中，作为在空气燃烧模式中使用的第一燃烧气体的空气，锅炉操作方法可以在空气燃烧模式和 氧燃烧模式，同时保持燃烧稳定。
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公开(公告)号：US20130273481A1
公开(公告)日：2013-10-17
申请号：US13877522
申请日：2011-10-21
申请人： Hirofumi Okazaki , Koji Kuramashi , Hideo Okimoto , Kenichi Ochi , Naoya Imooka , Pauli Dernjatin
发明人： Hirofumi Okazaki , Koji Kuramashi , Hideo Okimoto , Kenichi Ochi , Naoya Imooka , Pauli Dernjatin
CPC分类号： F23L7/007 , F23C9/00 , F23C9/003 , F23L2900/07001 , F23L2900/07005 , F23L2900/07006 , F23N3/002 , F23N2021/12 , F23N2037/26 , Y02E20/322 , Y02E20/344
摘要： A boiler operating method operates a boiler by switching between air combustion mode and oxygen combustion mode when burning fossil fuel with first combustion gas and second combustion gas. The second combustion gas compensates for oxygen deficiency in the first combustion gas. The air combustion mode uses air as the first combustion gas and the second combustion gas while the oxygen combustion mode uses mixed gas of combustion flue gas and oxygen-rich gas as the first combustion gas and the second combustion gas, the combustion flue gas being produced when the fossil fuel is burned. By mixing the oxygen-rich gas in the air in the process of switching between air combustion mode and oxygen combustion mode, the air being the first combustion gas used in the air combustion mode, the boiler operating method can switch between the air combustion mode and oxygen combustion mode while maintaining stable combustion.
摘要翻译： 锅炉操作方法通过在用第一燃烧气体和第二燃烧气体燃烧化石燃料时，在空气燃烧模式和氧气燃烧模式之间切换来操作锅炉。 第二燃烧气体补偿第一燃烧气体中的氧缺乏。 空气燃烧模式使用空气作为第一燃烧气体和第二燃烧气体，而氧气燃烧模式使用燃烧烟道气和富氧气体的混合气体作为第一燃烧气体和第二燃烧气体，生成燃烧烟道气 当化石燃料燃烧时。 通过在空气燃烧模式和氧气燃烧模式之间切换过程中将富氧气体混合在空气中，作为在空气燃烧模式中使用的第一燃烧气体的空气，锅炉操作方法可以在空气燃烧模式和 氧燃烧模式，同时保持燃烧稳定。
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公开(公告)号：US09513000B2
公开(公告)日：2016-12-06
申请号：US13825157
申请日：2011-09-29
IPC分类号： F23L7/00 , F23J15/02 , F23D14/66 , F23C9/00 , F01K7/40 , F22B1/18 , F23J15/06 , F23C9/08 , F23L15/04
CPC分类号： F23L7/007 , F01K7/40 , F22B1/18 , F23C9/00 , F23C9/08 , F23D14/66 , F23J15/022 , F23J15/06 , F23J2215/50 , F23L15/04 , Y02E20/322 , Y02E20/326 , Y02E20/344 , Y02E20/348
摘要： An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90° C. and 140° C.
摘要翻译： 氧气燃烧系统包括使用由富氧气体和循环烟道气组成的燃烧气体燃烧燃料的锅炉，设置在烟道中排出的烟道的除尘器，通过该烟道排出烟道气流过的第二烟道， 锅炉，通过将从除尘器下游提取的循环烟道气与富氧气体混合而形成的燃烧气体，在锅炉和除尘器之间流动的烟道气与流过锅炉的燃烧气体之间交换热量的燃烧气体加热器 第二烟道和布置在加热器和除尘器之间的烟道气体冷却器以冷却烟道气。 控制单元控制烟气冷却器的流量和冷却介质温度中的至少一个，使得引入除尘器的烟道气的温度将在90℃和140℃之间。
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公开(公告)号：US09429319B2
公开(公告)日：2016-08-30
申请号：US13876516
申请日：2011-10-12
CPC分类号： F23L7/007 , F23C9/00 , F23C9/08 , F23J15/02 , F23L2900/07001 , Y02E20/322 , Y02E20/344
摘要： To inhibit corrosion of water wall tubes of a boiler and stabilize combustion on a burner during oxygen combustion operation, a boiler combustion system includes a boiler equipped with a burner and a two-staged combustion gas input port; a flue gas supply fan extracting flue gas from a flue gas treatment system via a flue gas circulation line; a combustion gas supply line, fuel carrier gas supply line, and two-staged combustion gas supply line branched off from the flue gas circulation line downstream of the flue gas supply fan; an oxygen supply line supplying oxygen-rich gas to the combustion gas supply line and fuel carrier gas supply line; combustion air supply fans; a switching unit switching operation between the flue gas supply fan and the combustion air supply fans; and dampers regulating gas flow rates on the combustion gas supply line and the two-staged combustion gas supply line, respectively.
摘要翻译： 为了抑制锅炉的水壁管的腐蚀并且在氧燃烧操作期间稳定燃烧器上的燃烧，锅炉燃烧系统包括装备有燃烧器和两级燃烧气体输入口的锅炉; 烟气供应风扇通过烟气循环管线从烟气处理系统中提取烟道气; 燃烧气体供应管线，燃料载体气体供应管线和从烟道气供应风扇下游的烟道气循环管线分支的两级燃烧气体供应管线; 向燃烧气体供给管线和燃料载体气体供给管线供给富氧气体的供氧管线; 助燃风机; 烟道气供应风扇和燃烧空气供应风扇之间的切换单元切换操作; 以及分别调节燃烧气体供应管线和两级燃烧气体供应管线上的气体流量的阻尼器。
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公开(公告)号：US20130252184A1
公开(公告)日：2013-09-26
申请号：US13876516
申请日：2011-10-12
CPC分类号： F23L7/007 , F23C9/00 , F23C9/08 , F23J15/02 , F23L2900/07001 , Y02E20/322 , Y02E20/344
摘要： To inhibit corrosion of water wall tubes of a boiler and stabilize combustion on a burner during oxygen combustion operation, a boiler combustion system includes a boiler equipped with a burner and a two-staged combustion gas input port; a flue gas supply fan extracting flue gas from a flue gas treatment system via a flue gas circulation line; a combustion gas supply line, fuel carrier gas supply line, and two-staged combustion gas supply line branched off from the flue gas circulation line downstream of the flue gas supply fan; an oxygen supply line supplying oxygen-rich gas to the combustion gas supply line and fuel carrier gas supply line; combustion air supply fans; a switching unit switching operation between the flue gas supply fan and the combustion air supply fans; and dampers regulating gas flow rates on the combustion gas supply line and the two-staged combustion gas supply line, respectively.
摘要翻译： 为了抑制锅炉的水壁管的腐蚀并且在氧燃烧操作期间稳定燃烧器上的燃烧，锅炉燃烧系统包括装备有燃烧器和两级燃烧气体输入口的锅炉; 烟气供应风扇通过烟气循环管线从烟气处理系统中提取烟道气; 燃烧气体供应管线，燃料载体气体供应管线和从烟道气供应风扇下游的烟道气循环管线分支的两级燃烧气体供应管线; 向燃烧气体供给管线和燃料载体气体供给管线供给富氧气体的供氧管线; 助燃风机; 烟道气供应风扇和燃烧空气供应风扇之间的切换单元切换操作; 以及分别调节燃烧气体供应管线和两级燃烧气体供应管线上的气体流量的阻尼器。
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公开(公告)号：US20130244190A1
公开(公告)日：2013-09-19
申请号：US13825157
申请日：2011-09-29
CPC分类号： F23L7/007 , F01K7/40 , F22B1/18 , F23C9/00 , F23C9/08 , F23D14/66 , F23J15/022 , F23J15/06 , F23J2215/50 , F23L15/04 , Y02E20/322 , Y02E20/326 , Y02E20/344 , Y02E20/348
摘要： An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90° C. and 140° C.
摘要翻译： 氧气燃烧系统包括使用由富氧气体和循环烟道气组成的燃烧气体燃烧燃料的锅炉，设置在烟道中排出的烟道的除尘器，通过该烟道排出烟道气流过的第二烟道， 锅炉，通过将从除尘器下游提取的循环烟道气与富氧气体混合而形成的燃烧气体，在锅炉和除尘器之间流动的烟道气与流过锅炉的燃烧气体之间交换热量的燃烧气体加热器 第二烟道和布置在加热器和除尘器之间的烟道气体冷却器以冷却烟道气。 控制单元控制烟气冷却器的流量和冷却介质温度中的至少一个，使得引入除尘器的烟道气的温度将在90℃和140℃之间。
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7.发明申请Method For Reducing Nitrogen Oxide Emissions of a Bubbling Fluidized Bed Boiler and an Air Distribution System of a Bubbling Fluidized Bed Boiler 审中-公开鼓泡流化床锅炉排气氮氧化物排放方法及气泡流化床锅炉空气分配系统公开(公告)号：US20080149012A1
公开(公告)日：2008-06-26
申请号：US11883887
申请日：2006-02-09
申请人： Pauli Dernjatin , Marko Fabritius , Jukka Roppanen
发明人： Pauli Dernjatin , Marko Fabritius , Jukka Roppanen
CPC分类号： F23C10/00 , F23C2201/101 , F23G5/30 , F23G7/10
摘要： A method for reducing nitrogen oxide emissions of a bubbling fluidized bed boiler burning biofuel and an air distribution system for a bubbling fluidized bed boiler biofuel. A fluidized bed is arranged in a lower part of a furnace of the boiler. The bed is fluidized by fluidizing gas that includes primary air. Fuel is fed to the fluidized bed, which dries and pyrolizes into pyrolysis gas including volatile matter of the fuel. The gas rises upwards in the furnace and burns. Secondary air is supplied above the fluidized bed from secondary air nozzles, and tertiary air is supplied above the secondary air nozzles. A part of primary air is supplied in connection with fuel feeding such that the fuel is forced substantially on the surface of the fluidized bed, thus pyrolizing entirely, and at least a part of the pyrolysis gases formed in the pyrolysis is burned by primary air such that the air coefficient in relation to the volatile matter of fuel in the pyrolysis gases is in the substoichiometric area.
摘要翻译： 一种用于减少燃烧生物燃料的鼓泡流化床锅炉和用于鼓泡流化床锅炉生物燃料的空气分配系统的氮氧化物排放的方法。 流化床布置在锅炉炉的下部。 该床通过包括一次空气的流化气体流化。 将燃料送入流化床，其干燥并热解成包括燃料挥发物质的热解气体。 气体在炉中向上升起并燃烧。 二次空气从二次空气喷嘴在流化床上方供应，三次空气供应到二次空气喷嘴上方。 一次空气的一部分与燃料供给相关联地供应，使得燃料基本上被迫在流化床的表面上被强制化，从而全部进行热解，并且在热解中形成的至少一部分热解气体被一次空气燃烧 与热解气体中的燃料挥发物相关的空气系数在化学计量区域内。
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公开(公告)号：US07004089B2
公开(公告)日：2006-02-28
申请号：US10476684
申请日：2001-05-11
CPC分类号： F23C6/047 , F23C10/002 , F23C2201/101 , F23C2201/301
摘要： The invention relates to a combined fluidized bed and pulverized coal combustion method and system. In the method, fluidizing air (4) is injected into a fluidized bed (2) situated in the bottom portion of the combustion chamber (3). Into the combustion chamber, to above the fluidized bed (2), is fed a mixture of pulverized coal and a carrier gas from a second set of fuel feed means (6) at a mass flow rate which is higher or at least substantially equal to the upper ignition limit of the mixture, and the mixture of the pulverized coal and the carrier gas at least by the fluidizing air (4), and at least a fraction of the fuel fed via the second set of fuel feed means (6) is combusted above the fluidized bed (2).
摘要翻译： 本发明涉及一种组合流化床和粉煤燃烧方法及系统。 在该方法中，将流化空气（4）注入位于燃烧室（3）底部的流化床（2）中。 在燃烧室内到达流化床（2）的上方，以来自第二组燃料供给装置（6）的粉煤和载气的混合物以更高或至少基本上等于 至少通过流化空气（4），混合物的上限点火极限和粉煤与载体气体的混合物，以及经由第二组燃料供给装置（6）供给的燃料的至少一部分是 在流化床（2）上方燃烧。
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9.发明授权Method and apparatus for reducing nitrogen oxide emissions from burning pulverized fuel 失效用于减少燃烧粉煤燃料的氮氧化物排放的方法和装置
公开(公告)号：US5799594A
公开(公告)日：1998-09-01
申请号：US637777
申请日：1996-05-02
申请人： Pauli Dernjatin , Kati Savolainen , Juha Lepikko
发明人： Pauli Dernjatin , Kati Savolainen , Juha Lepikko
摘要： Method for combusting pulverized fuels in a tangentially fired boiler and reducing emission of nitrogen oxides comprises steps of feeding a substantially air-deficient mixture of fuel and primary air through a fuel feeding pipe (1) tangentially into a furnace of the boiler in order to form a reducing flame (II) aNd blowing of at least one stream of combustion air into the furnace. The invEntion is based in that the stream of primary air and fuel is caused to recirculate and turbulate at the open end (2) of the fuel feeding pipe (1) by passing it through a flame holder (9) extending into the fuel feeding pipe (1), and the stream of combustion air is directed away from the primary air/fuel stream in order to prevent the combustion air to mix into the reducing flame (II).
摘要翻译： PCT No.PCT / FI93 / 00461 Sec。 371日期：1996年5月2日 102（e）日期1996年5月2日PCT提交1993年11月8日PCT公布。 WO95 / 13502 PCT公开号 日期1995年5月18日在切向燃烧的锅炉中燃烧粉碎燃料并减少氮氧化物排放的方法包括以下步骤：将基本上空气不足的燃料和一次空气的混合物通过燃料供给管（1）切向地送入锅炉 以形成还原火焰（II），将至少一种燃烧空气流吹入炉中。 所述主张的基础在于，使一次空气和燃料流在燃料供给管（1）的开口端（2）处通过使其通过延伸进入燃料供给管的火焰保持器（9）而再次发生和湍流 （1），并且燃烧空气流被引导离开一次空气/燃料流，以防止燃烧空气混入还原火焰（II）中。
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