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    • 2. 发明授权
    • Apparatus for the detection and control of aromatic compounds in
combustion effluent
    • 用于检测和控制燃烧流出物中芳香族化合物的装置
    • US5425916A
    • 1995-06-20
    • US164430
    • 1993-12-08
    • Janos M. BeerArslan KahnAdel F. SarofimJan H. ThijssenMajed A. Toqan
    • Janos M. BeerArslan KahnAdel F. SarofimJan H. ThijssenMajed A. Toqan
    • G01J3/443G01N21/64G01N21/01
    • G01N21/6402F23G2207/107Y10T436/12Y10T436/19Y10T436/212
    • 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.
    • 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。
    • 5. 发明授权
    • Low NOx rich-lean combustor especially useful in gas turbines
    • 特别适用于燃气轮机的低NOx富稀燃燃烧器
    • US4845940A
    • 1989-07-11
    • US117369
    • 1987-10-28
    • Janos M. Beer
    • Janos M. Beer
    • F23C6/04F23C7/00F23C9/00F23R3/02F23R3/12
    • F23R3/346F23C6/045F23C7/004F23C9/006F23R3/02F23R3/12
    • A combustor capable of reducing the noxious emissions such as fuel bound and thermal nitrogen oxide products, during combustion of high nitrogen bearing and high aromatic content fuels is disclosed. The combustor includes a plurality of substantially concentric pipes defining annular passages with annular divergent nozzles. The divergent nozzles may be formed by rings having a venturi shaped axial section to facilitate fast mixing of axially supplied air between adjacent annular passages. The longitudinal spacing between at least two adjacent nozzles defines first and second divergent cavities. A fuel rich torodial vortex is formed in proximity to a central fuel jet in the first cavity and advantageously converts fuel bound nitrogen to N.sub.2. A fuel lean torodial vortex formed in the second cavity mixes hot combustion products with additional gaseous reactant to complete the combustion while avoiding locally high temperatures, and thus thermal NOx formation. A ring of jet nozzles radially injects relatively small amounts of high pressure gaseous reactant or steam to form a throat to separate and stabilize the vortices. Alternatively, the pipe extending between the two cavities can include a convergent and divergent portion forming the throat between the cavities for separating and reinforcing the toroidal vortices. Guide vanes may be positioned in the annular passages to swirl the gaseous reactant entering the cavities to assist in the formation of the toroidal vortices.
    • 公开了一种能够在高含氮量和高芳族化合物燃料的燃烧期间减少有害排放的燃烧器,例如燃料结合和热氮氧化物产物。 燃烧器包括多个基本同心的管,其限定具有环形发散喷嘴的环形通道。 发散喷嘴可以由具有文氏管轴向部分的环形成,以便于在相邻的环形通道之间快速混合轴向供应的空气。 至少两个相邻喷嘴之间的纵向间隔限定第一和第二发散腔。 燃料丰富的涡流涡流形成在第一腔中的中央燃料射流附近,并且有利地将燃料结合的氮转化成N2。 形成在第二腔中的燃料不良的涡流涡流将热燃烧产物与另外的气体反应物混合以完成燃烧,同时避免局部高温,从而形成热NOx。 喷嘴环径向喷射相对少量的高压气体反应物或蒸汽以形成喉部以分离和稳定涡流。 或者,在两个空腔之间延伸的管可以包括会聚和发散部分,其形成在腔之间的喉部,用于分离和加强环形涡流。 引导叶片可以定位在环形通道中以使进入空腔的气态反应物旋转以帮助形成环形涡流。