公开(公告)号：US06672859B1

公开(公告)日：2004-01-06

申请号：US10222180

申请日：2002-08-16

申请人： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan

发明人： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan

IPC分类号： F23M300

CPC分类号： F23D14/70 ,  F23C6/047 ,  F23C9/006 ,  F23C9/08 ,  F23D2900/11403

摘要： An apparatus for combustion of a fuel in stages having at least one wall enclosing a chamber and forming at least one fuel inlet opening, at least one oxidant inlet opening and a plurality of fuel/oxidant outlet openings. A recirculation sleeve is disposed on the fuel/oxidant outlet side of the chamber and is coaxially aligned with the center axis of the apparatus. A plurality of fuel distributors are disposed within the chamber, each fuel distributor having a fuel inlet and a plurality of fuel outlets, each of the fuel outlets being aligned with a corresponding one of the fuel/oxidant outlet openings. Also disclosed is a method for combustion of a fuel in stages.

摘要翻译： 一种用于燃烧燃料的装置，其具有至少一个包围室的壁并形成至少一个燃料入口，至少一个氧化剂入口和多个燃料/氧化剂出口。 再循环套管设置在腔室的燃料/氧化剂出口侧，并且与设备的中心轴线同轴对准。 多个燃料分配器设置在室内，每个燃料分配器具有燃料入口和多个燃料出口，每个燃料出口与相应的燃料/氧化剂出口开口对准。 还公开了分级燃烧燃料的方法。

公开(公告)号：US06638055B2

公开(公告)日：2003-10-28

申请号：US10135007

申请日：2002-04-30

申请人： Richard Carroni ,  Adnan Eroglu ,  Timothy Griffin ,  Verena Schmidt

发明人： Richard Carroni ,  Adnan Eroglu ,  Timothy Griffin ,  Verena Schmidt

IPC分类号： F23M300

CPC分类号： F23C13/00 ,  F23C7/002 ,  F23C9/006 ,  F23C2900/13002 ,  F23D2203/107 ,  F23D2210/00 ,  F23R3/40

摘要： A device for burning a gaseous fuel/oxidant mixture, in particular for a power plant installation, includes a catalyzer/swirl generator arrangement. Part of the fuel/oxidant mixture is burned in the catalyzer/swirl generator arrangement and the catalyzer/swirl generator arrangement generates a swirl flow. The catalyzer/swirl generator arrangement includes several flow channels, of which some are constructed catalytically active and others catalytically inactive. The flow channels can be arranged distributed around a longitudinal central axis of the catalyzer/swirl generator arrangement, and can be slanted relative to the axis.

摘要翻译： 用于燃烧气体燃料/氧化剂混合物，特别是用于发电厂安装的装置包括催化剂/涡流发生器装置。 燃料/氧化剂混合物的一部分在催化剂/涡流发生器装置中燃烧，并且催化剂/涡流发生器装置产生涡流。 催化剂/涡流发生器装置包括几个流动通道，其中一些流动通道构造为催化活性且其它催化活性。 流动通道可以布置在催化剂/涡流发生器装置的纵向中心轴线周围，并且可以相对于轴线倾斜。

公开(公告)号：US06672858B1

公开(公告)日：2004-01-06

申请号：US09907793

申请日：2001-07-18

申请人： Charles E. Benson ,  Roberto O. Pellizzari ,  Peter J. Loftus ,  Dennis L. Juedes ,  Richard R. Martin ,  Earl Ray Wade ,  Paul M. Rodden

发明人： Charles E. Benson ,  Roberto O. Pellizzari ,  Peter J. Loftus ,  Dennis L. Juedes ,  Richard R. Martin ,  Earl Ray Wade ,  Paul M. Rodden

IPC分类号： F23M300

CPC分类号： F23C6/047 ,  F23C9/08 ,  F23C2202/20 ,  F23C2900/09002 ,  F23D2900/14124

摘要： An improved process for heating furnaces using a burner design that produces very low level of undesirable nitrogen oxides is provided. The process recirculates a large volume of furnaces gases back to the burner where it is mixed with fuel gas in a plurality of recirculation ports prior to combusting with air in a primary combustion zone. Dispersion of the fuel gas in the recirculated furnace gases is believed to result in lower peak flame temperatures and therefore minimizing the formation of the pollutants, such as nitrogen oxides.

摘要翻译： 提供了使用产生非常低水平的不期望的氮氧化物的燃烧器设计的加热炉的改进方法。 该过程将大量的炉子气体再循环回到燃烧器，在燃烧器中，在与主燃烧区域中的空气燃烧之前，其与多个再循环端口中的燃料气体混合。 据信燃料气体在再循环的炉内气体中的分散会导致较低的峰值火焰温度，从而使污染物（如氮氧化物）的形成最小化。

公开(公告)号：US06663380B2

公开(公告)日：2003-12-16

申请号：US09946444

申请日：2001-09-05

申请人： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan ,  Serguei Nester ,  Hamid A. Abbasi

发明人： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan ,  Serguei Nester ,  Hamid A. Abbasi

IPC分类号： F23M300

CPC分类号： F23C6/04 ,  F23C9/006 ,  F23C2201/20 ,  F23C2201/30 ,  F23C2900/06041

摘要： A method and apparatus for combustion of a fuel in which a first-stage fuel and a first-stage oxidant are introduced into a combustion chamber and ignited, forming a primary combustion zone. At least about 5% of the total heat output produced by combustion of the first-stage fuel and the first-stage oxidant is removed from the primary combustion zone, forming cooled first-stage combustion products. A portion of the cooled first-stage combustion products from a downstream region of the primary combustion zone is recirculated to an upstream region of primary combustion zone. A second-stage fuel is introduced into the combustion chamber downstream of the primary combustion zone and ignited, forming a secondary combustion zone. At least about 5% of the heat from the secondary combustion zone is removed. In accordance with one embodiment, a third-stage oxidant is introduced into the combustion chamber downstream of the secondary combustion zone, forming a tertiary combustion zone.

公开(公告)号：US06790031B2

公开(公告)日：2004-09-14

申请号：US10346009

申请日：2003-01-16

申请人： Lawrence D. Berg ,  Edmund S. Schindler ,  Nigel John Garrad ,  John Joseph Halloran

发明人： Lawrence D. Berg ,  Edmund S. Schindler ,  Nigel John Garrad ,  John Joseph Halloran

IPC分类号： F23M300

CPC分类号： F23C6/047 ,  F23C5/32 ,  F23C2201/101 ,  Y02E20/344

摘要： A tangential fired boiler has a circumferential wall defining a combustion zone and a plurality of fuel inlets disposed along the circumferential wall. The plurality of fuel inlets inject fuel at non-uniform rates in order to produce localized fuel rich, oxygen poor zones and fuel lean, oxygen rich zones within the combustion zone, and to cause ambient boiler gases to be entrained into and mix with the oxygen poor zone to achieve fuel staging of the boiler.

摘要翻译： 切向燃烧的锅炉具有限定燃烧区域的周向壁和沿着周向壁设置的多个燃料入口。 多个燃料入口以不均匀的速率喷射燃料，以便在燃烧区内产生局部富燃料，贫氧区和燃料贫乏的富氧区，并且使环境锅炉气体被夹带并与氧气混合 不良区域实​​现锅炉燃油分级。

公开(公告)号：US06776609B1

公开(公告)日：2004-08-17

申请号：US10606559

申请日：2003-06-26

申请人： John D. Sullivan ,  Luis H. Morales ,  Robert W. Nickeson

发明人： John D. Sullivan ,  Luis H. Morales ,  Robert W. Nickeson

IPC分类号： F23M300

CPC分类号： F23N1/042 ,  F23C9/00 ,  F23C2202/30 ,  F23D17/00 ,  F23L3/00 ,  F23L5/02 ,  F23N3/02 ,  F23N5/18 ,  F23N2021/12 ,  F23N2035/06

摘要： The present invention is a method and apparatus to improve the utilization of flow and power characteristics of a combustion air fan over the full range of burner operation. More specifically, it is an apparatus and a method of operation that uses a high flue-gas-to-air ratio over most of the boiler operating range to maximize thermal efficiency, but which switches to a lower ratio of flue-gas-to-air, or no flue gas in the limiting case, at the high end of the mass flow range of the burner to minimize the size of the fan housing and fan motor. When applied to current generation ULNBs, fan size can be reduced about 50% and operating power consumption can be reduced by about 50% without adversely affecting NOx emissions.

摘要翻译： 本发明是一种在燃烧器操作的全范围内提高燃烧空气风扇的流量和功率特性的利用的方法和装置。 更具体地说，它是一种在锅炉运行范围内大部分使用高烟道气空气比的装置和操作方法，以最大限度地提高热效率，但是转换成烟气 - 在限制情况下，在燃烧器的质量流量范围的高端，空气或无烟气，以最小化风扇壳体和风扇电动机的尺寸。 当应用于当前一代ULNB时，风扇尺寸可以减少约50％，并且可以将工作功耗降低约50％，而不会对NOx排放产生不利影响。

公开(公告)号：US06609905B2

公开(公告)日：2003-08-26

申请号：US10132478

申请日：2002-04-26

申请人： Adnan Eroglu ,  Timothy Griffin ,  Jaan Hellat

发明人： Adnan Eroglu ,  Timothy Griffin ,  Jaan Hellat

IPC分类号： F23M300

CPC分类号： F23R3/36 ,  F23D2900/00008 ,  F23D2900/14004 ,  F23N2037/12 ,  F23R3/286 ,  F23R3/34 ,  F23R3/346 ,  F23R3/40

摘要： The invention relates to a catalytic burner (1) of a combuster (2), in particular of a power station installation, comprising an annular duct (4) leading to the combuster (2), a catalyzer (5) arranged in the annular duct (4), a primary injection device (7) for injecting a fuel into the annular duct (4) upstream of the catalyzer (5), a secondary injection device (3) for directly injecting a fuel into the combuster (2). To stabilize a recirculation zone (29) in the combuster (2), a swirl generation device (6) is provided, which is arranged in the annular duct (4) downstream of the catalyzer (5) and subjects a flow through the catalyzer (5) to a swirl.

摘要翻译： 本发明涉及燃烧器（2）的催化燃烧器（1），特别是在电站设备中，包括通向燃烧器（2）的环形管道（4），设置在环形管道中的催化剂（5） 4），用于将燃料喷射到催化器（5）上游的环形管道（4）中的主注射装置（7），用于将燃料直接喷射到燃烧器（2）中的二次注射装置（3）。为了稳定 在燃烧器（2）中的再循环区（29），设置有涡流发生装置（6），其设置在催化器（5）下游的环形管道（4）中并使流过催化剂（5） 到漩涡

公开(公告)号：US06599118B2

公开(公告)日：2003-07-29

申请号：US10085545

申请日：2002-02-28

申请人： Sarma V. Pisupati

发明人： Sarma V. Pisupati

IPC分类号： F23M300

CPC分类号： F23B90/06 ,  F23G5/027 ,  F23G7/05 ,  F23G7/10 ,  F23G2201/302 ,  F23G2201/303 ,  F23G2201/304 ,  F23G2202/103 ,  F23G2202/106

摘要： There is provided methods and systems for the reduction of nitrogen oxides and carbon loss from carbonaceous fuel combustion flue emissions. The preferred carbonaceous fuel is coal. The invention provides methods and systems comprising the use of coal as a reburn fuel for coal combustion systems. The invention comprises low temperature pyrolysis producing gaseous hydrocarbons for the reduction of nitrogen oxides and treatment of char with resulting reduction of carbon loss.