-
公开(公告)号：US6148744A
公开(公告)日：2000-11-21
申请号：US401357
申请日：1999-09-21
CPC分类号： F23L9/04 , F23C5/32 , F23C6/047 , F23D1/02 , F23C2201/101
摘要： A method of operating a pulverized coal-firing furnace so as to achieve no more than a predetermined variation in the instantaneous vertical velocities of the flow exiting a combustion chamber of the furnace is provided. The method includes, in one variation thereof, providing a series of lower compartments for introducing therethrough one of air, fuel, and air and fuel into the combustion chamber. At least one upper compartment is disposed above the topmost compartment of the series of lower compartments at a relative disposition to the topmost compartment in a spacing range between a contiguous disposition to a more spaced disposition which is no more than twice the average spacing between any given compartment and an adjacent compartment. Air is injected from the at least one upper compartment generally in opposition to the swirling fireball along a direction which is offset to the other side of the diagonal in a manner such that the injected air promotes the evolution of the swirling fireball into an upward flow in the top half of the furnace characterized by portions thereof flowing upward at differing vertical velocities with a maximum variation of no more than thirty percent between the instantaneous vertical velocities of the portions of the upward flow as measured across a horizontal plane in the top half of the furnace.
摘要翻译： 提供了一种操作粉煤燃烧炉的方法，以便达到不超过离开燃烧室的流的瞬时垂直速度的预定变化。 该方法在其一个变型中包括提供一系列下部隔室，用于将空气，燃料和空气和燃料中的一个引入燃烧室。 至少一个上部隔间设置在一系列下部隔室的最上部隔间的上方，以相对配置到最上面隔间的间隔范围内的间隔范围内，间隔距离与间隔更宽的位置之间的距离不超过任何给定的间隔之间的平均间距的两倍 隔间和相邻的隔间。 空气从所述至少一个上隔室通常以与旋转的火球相反的方式从沿对角线的另一侧的方向喷射，使得喷射的空气促进旋转火球向上流动的方式 炉的上半部分，其特征在于其部分以不同的垂直速度向上流动，在向上流动的部分的瞬时垂直速度之间的最大变化不超过百分之三十，最大变化在跨越上半部分的上半部分的水平面上测量 炉。
-
2.发明授权Method of operating a coal-fired furnace to control the flow of combustion products 失效操作燃煤炉的方法来控制燃烧产物的流动
公开(公告)号：US6138588A
公开(公告)日：2000-10-31
申请号：US371453
申请日：1999-08-10
CPC分类号： F23C7/02 , F23C5/32 , F23N2025/16 , F23N2039/02 , F23N5/10
摘要： A method of operating a pulverized coal-firing furnace is provided which includes injecting air from an upper compartment generally in opposition to a swirling fireball. The method also provides the step of sensing a temperature characteristic of one side of a convection pass of the furnace. The sensed value, in accordance with the method of the present invention, is then evaluated to determine if the sensed value of the temperature characteristic exceeds an allowable value. In response to a determination that the temperature characteristic exceeds the allowable value, the momentum of the air injected through the upper air compartment is changed. After the step of changing the momentum of the air injected through the upper air compartment, the temperature characteristic of the one convection pass location is sensed to obtain a post adjustment value of the temperature characteristic and compared to an allowable value.
摘要翻译： 提供了一种操作粉煤燃烧炉的方法，其包括从通常与漩涡火球相对的上隔室喷射空气。 该方法还提供了感测炉的对流通过的一侧的温度特性的步骤。 然后根据本发明的方法对感测值进行评估，以确定感测到的温度特性值是否超过允许值。 响应于温度特性超过允许值的确定，通过上部空气室喷射的空气的动量被改变。 在改变通过上部空气室喷射的空气的动量的步骤之后，检测一个对流通过位置的温度特性，以获得温度特性的后调整值，并将其与容许值进行比较。
-
3.发明授权公开(公告)号：US06193940B1
公开(公告)日：2001-02-27
申请号：US09217210
申请日：1998-12-21
IPC分类号： F28D2100
摘要： A firing system for a thermal cracking furnace is provided. The firing system includes a plurality of air inlets for introducing air into the furnace interior, the air inlets being generally arrayed along a lengthwise row on the floor of the furnace at a predetermined proximity to one of the sidewalls, and a plurality of start up fuel ports disposed intermediate the row of air inlets and the radiant coils of the furnace. The firing system also includes a plurality of normal operation fuel ports disposed intermediate the row of start up ports and the radiant coils and an assembly for selectively controlling the overall supply of fuel to the start up fuel ports and the normal fuel operation ports to effect supply of fuel solely to the start up fuel ports during a start up mode of operation of the firing system and supply of fuel solely to the normal operation fuel ports during a normal mode of operation.
摘要翻译： 提供了一种用于热裂解炉的烧制系统。 燃烧系统包括用于将空气引入炉内部的多个空气入口，空气入口通常沿着位于炉底的长度方向排布在预定接近一个侧壁处，并且多个启动燃料 端口设置在炉排的空气入口排和辐射线圈的中间。 燃烧系统还包括设置在起动端口列和辐射线圈之间的多个正常操作燃料口和用于选择性地控制向起动燃料端口和正常燃料操作口供应的燃料的总成以实现供给 的燃料仅在燃烧系统的启动操作模式期间启动燃料端口，并且在正常操作模式期间仅向正常操作燃料端口供应燃料。
-
4.发明授权Apparatus for the detection and control of aromatic compounds in combustion effluent 失效用于检测和控制燃烧流出物中芳香族化合物的装置
公开(公告)号：US5425916A
公开(公告)日：1995-06-20
申请号：US164430
申请日：1993-12-08
申请人： Janos M. Beer , Arslan Kahn , Adel F. Sarofim , Jan H. Thijssen , Majed A. Toqan
发明人： Janos M. Beer , Arslan Kahn , Adel F. Sarofim , Jan H. Thijssen , Majed A. Toqan
CPC分类号： G01N21/6402 , F23G2207/107 , Y10T436/12 , Y10T436/19 , Y10T436/212
摘要： An apparatus for detecting the presence of polycyclic aromatic hydrocarbons in the effluent of a turbulent commercial combustion system for monitoring or controlling the composition of the effluent. The apparatus is a system for directyl selectively detecting the presence in the effluent high molecular weight polycyclic aromatic compounds having five or more rings by laser induced fluorescence. The system includes an illuminating source of select fluorescence excitation of wavelengths that induces substantial fluorescence by high molecular weight polycyclic aromatic hydrocarbons in the gas phase. Sampling structure is constructed to provide optical access to the effluent stream to sample the effluent stream at a select position where high molecular weight polycyclic aromatic compounds having five or more rings may be present in sufficient amounts that the fluorescence from the effluent at the select position at the excitation wavelength is predominantly from high molecular weight polycyclic aromatic compounds having five or more rings, when the high molecular weight polycyclic aromatic compounds are present in sufficient amounts. A detector detects the fluorescent signal from the illuminated effluent and an analyzer analyzes the signal to directly selectively determine the presence of the high molecular weight polycyclic aromatic hydrocarbons having five or more rings in the effluent.
摘要翻译： 一种用于检测湍流商业燃烧系统的流出物中多环芳烃的存在的装置，用于监测或控制流出物的组成。 该装置是通过激光诱导的荧光来选择性地检测具有五个或更多个环的流出物高分子量多环芳族化合物中存在的装置。 该系统包括在气相中通过高分子量多环芳烃诱导基本荧光的波长的选择荧光激发的照明源。 采样结构被构造成提供对流出物流的光学访问以在选择位置对流出物流进行采样，其中具有五个或更多个环的高分子量多环芳族化合物可以以足够的量存在，以使来自选择位置处的流出物的荧光 当高分子量多环芳族化合物以足够的量存在时，激发波长主要来自具有五个或更多个环的高分子量多环芳族化合物。 检测器检测来自被照射流出物的荧光信号，并且分析仪分析信号以直接选择性地确定在流出物中具有五个或更多个环的高分子量多环芳烃的存在。
-
公开(公告)号：US6089023A
公开(公告)日：2000-07-18
申请号：US69405
申请日：1998-04-29
申请人： David K. Anderson , Wayne S. Counterman , Mark Palkes , Friedrich W. Pinnekamp , Kjell E. G. Porle , Michael J. Rini , James David Seebald , Srivats Srinivasachar , Majed A. Toqan
发明人： David K. Anderson , Wayne S. Counterman , Mark Palkes , Friedrich W. Pinnekamp , Kjell E. G. Porle , Michael J. Rini , James David Seebald , Srivats Srinivasachar , Majed A. Toqan
IPC分类号： F22B31/08 , F22D1/36 , F23J15/00 , F23J15/04 , F23J15/06 , F23J15/08 , F23L15/02 , F28D19/04 , F01K7/34
CPC分类号： F23J15/08 , F22D1/36 , F23J15/006 , F23L15/02 , F23J2217/102 , F23J2217/50 , Y02E20/348
摘要： The flue gas temperature coming from an air preheater to a particulate collection device such as an electrostatic precipitation or fabric filter is reduced to improve the operation of the particulate collection device. This may be done by reducing the exit flue gas temperature from the air preheater or reducing the temperature after exiting. In one embodiment, air in excess of that needed for combustion is passed through the air preheater with the heated excess air either being dumped or used for a variety of purposes in the plant. A particular embodiment involves segmenting the air outlet side of a rotary regenerative air preheater and withdrawing the excess air from the segment where the dust loading is the lowest. Further, additional cooling of the flue gas can be provided by reducing the quantity of primary air that typically bypasses the air preheater and then providing other ways to control the primary air temperature to the pulverizers. The flue gas temperature may also be cooled after the air preheater by heat exchange or spray cooling with water.
摘要翻译： 来自空气预热器的烟道气体温度降低到诸如静电沉淀或织物过滤器的颗粒收集装置，以改善颗粒物收集装置的操作。 这可以通过减少来自空气预热器的出口烟道气温度或降低出口后的温度来完成。 在一个实施例中，超过燃烧所需空气的空气通过空气预热器，加热的过量空气被倾倒或用于工厂中的各种目的。 一个具体实施例涉及分段旋转式再生空气预热器的空气出口侧，并从灰尘负荷最低的区段抽出多余的空气。 此外，可以通过减少通常绕过空气预热器的一次空气的量，然后提供控制粉碎机的一次空气温度的其它方式来提供烟道气的附加冷却。 烟气温度也可以在空气预热器之后通过热交换或用水喷雾冷却来冷却。
-
6.发明授权Minimum recirculation flame control (MRFC) pulverized solid fuel nozzle tip 失效最小再循环火焰控制（MRFC）粉碎固体燃料喷嘴尖端
公开(公告)号：US6089171A
公开(公告)日：2000-07-18
申请号：US912903
申请日：1997-08-15
申请人： Milton A. Fong , Todd D. Hellewell , Robert D. Lewis , Charles Q. Maney , Srivats Srinivasachar , Majed A. Toqan , David P. Towle
发明人： Milton A. Fong , Todd D. Hellewell , Robert D. Lewis , Charles Q. Maney , Srivats Srinivasachar , Majed A. Toqan , David P. Towle
CPC分类号： F23D1/00 , F23C5/06 , F23C7/02 , F23D2201/101
摘要： A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle tip (12) includes a secondary air shroud (46), secondary air shroud support (50) operative for supporting the primary air shroud (48) relative to the secondary air shroud (46), and a splitter plate (52) mounted in supported relation within the primary air shroud (48).
摘要翻译： 适于与粉碎的固体燃料燃烧炉（10）中的燃烧系统的粉碎固体燃料喷嘴（34）协同地关联的最小再循环火焰控制（MRFC）固体燃料喷嘴尖端（12）。 MRFC固体燃料喷嘴头（12）包括二次空气罩（46），二次空气罩支撑件（50），其相对于二次空气罩（46）支撑主空气罩（48），以及分隔板 52），其以支撑的关系安装在主空气罩（48）内。
-
7.发明授权
公开(公告)号：US5960724A
公开(公告)日：1999-10-05
申请号：US123055
申请日：1998-07-27
申请人： Majed A. Toqan , Richard W. Borio , Thomas G. Duby , Richard C. LaFlesh , Julie A. Nicholson , David E. Thornock
发明人： Majed A. Toqan , Richard W. Borio , Thomas G. Duby , Richard C. LaFlesh , Julie A. Nicholson , David E. Thornock
CPC分类号： F23C7/004 , F23C6/045 , F23C7/006 , F23C7/008 , F23C2900/06043
摘要： A method for effecting control over a radially stratified flame core burner that is particularly suited for employment in a firing system of a fossil fuel-fired furnace for purposes of reducing the NO.sub.X emissions from the fossil fuel-fired furnace. The subject method for effecting control over a radially stratified flame core burner enables the foregoing to be accomplished while yet at the same time minimizing CO emissions and the opacity of the exhaust from the stack of the fossil fuel-fired furnace without extending the envelope of the flame produced by the radially stratified flame core burner.
摘要翻译： 为了减少来自化石燃料燃烧炉的NO x排放，在径向分层的火焰核燃烧器中进行控制的方法，该方法特别适用于化石燃料燃烧炉的燃烧系统的使用。 用于对径向分层的火焰核燃烧器进行控制的主题方法使得能够实现上述目的，同时使CO排放物和来自化石燃料燃烧炉的堆叠的排气的不透明度最小化，而不会延长 由径向分层的火焰核燃烧器产生的火焰。
-
8.发明授权Inverse combined steam-gas turbine cycle for the reduction of emissions of nitrogen oxides from combustion processes using fuels having a high nitrogen content 失效用于使用具有高氮含量的燃料从燃烧过程中减少氮氧化物排放的逆组合蒸汽 - 燃气轮机循环
公开(公告)号：US5617715A
公开(公告)日：1997-04-08
申请号：US340154
申请日：1994-11-15
申请人： Janos M. Beer , Majed A. Toqan
发明人： Janos M. Beer , Majed A. Toqan
CPC分类号： F01K23/06 , F02G2250/03 , Y02E20/16
摘要： An inverse combined steam-gas turbine cycle is disclosed. In the steam cycle, a fuel having a high nitrogen content such as coal or heavy fuel oil is burned in a boiler to raise steam to power a steam turbine. In the gas turbine cycle, a hydrocarbon fuel such as natural gas is burned in a gas combustor to power a gas turbine. The compressed exhaust gas (40. 42) from the steam cycle combustion is introduced into the gas combustor, where nitrogen oxides (NO.sub.x) in the exhaust gas may be reduced through reactions with the hydrocarbon fuel.
摘要翻译： 公开了一种逆组合蒸汽 - 燃气轮机循环。 在蒸汽循环中，具有高氮含量的燃料（例如煤或重质燃料油）在锅炉中燃烧，以提高蒸汽对蒸汽轮机供电。 在燃气轮机循环中，诸如天然气的烃燃料在气体燃烧器中燃烧以为燃气轮机供电。 来自蒸汽循环燃烧的压缩废气（40.42）被引入气体燃烧器中，其中排气中的氮氧化物（NOx）可以通过与烃燃料反应而减少。
-
公开(公告)号：US5411394A
公开(公告)日：1995-05-02
申请号：US131867
申请日：1993-10-05
CPC分类号： F23C7/006 , F23C9/00 , F23C2201/20 , F23C2202/20 , F23C2202/30 , F23C2900/06043
摘要： Low NO.sub.x burners for the combustion of gaseous, liquid and solid fuels. The fluid dynamic principle of radial stratification by the combustion of swirling flow and a strong radial gradient of the gas density in the transverse direction to the axis of flow rotation is used to damp turbulence near the burner and hence to increase the residence time of the fuel-rich pyrolyzing mixture before mixing with the rest of the combustion air to effect complete combustion.
摘要翻译： 用于燃烧气态，液态和固体燃料的低NOx燃烧器。 通过旋转流的燃烧进行径向分层的流体动力学原理以及沿流动轴线的横向方向上的气体密度的强径向梯度来减少燃烧器附近的湍流，从而增加燃料的停留时间 在与剩余的燃烧空气混合之前进行充分的热解混合物以实现完全燃烧。
-
公开(公告)号：US5206176A
公开(公告)日：1993-04-27
申请号：US591721
申请日：1990-10-02
申请人： Janos Beer , Arslan Kahn , Adel F. Sarofim , Jan H. Thijssen , Majed A. Toqan
发明人： Janos Beer , Arslan Kahn , Adel F. Sarofim , Jan H. Thijssen , Majed A. Toqan
CPC分类号： G01N21/6402 , F23G2207/107 , Y10T436/12 , Y10T436/19 , Y10T436/212
摘要： Detecting the presence of PAC's in the effluent of a combustions system by detecting the presence of a high molecular weight PAC's having five or more rings. A position along the effluent stream is selected at which high molecular weight PAC's may be present. The effluent is illuminated with radiation having a wavelength absorbed by the high molecular weight PAC's in the gas phase. The fluorescence from the illuminated effluent is detected, and analyzed by comparison to the known fluorescence of high molecular weight PAC's in the gas phase to determine the presence of the PAC's in the effluent. The effluent composition may be controlled in response to the detection.
摘要翻译： 通过检测具有五个或更多个环的高分子量PAC的存在来检测燃烧系统流出物中PAC的存在。 选择沿着流出物流的位置，其中可以存在高分子量PAC。 用在气相中的高分子量PAC吸收的波长的辐射照射流出物。 检测来自被照射流出物的荧光，并通过与气相中高分子量PAC的已知荧光进行比较来分析，以确定PAC在流出物中的存在。 可以响应于检测来控制流出物组成。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.044 秒)
