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公开(公告)号：US20220074865A1
公开(公告)日：2022-03-10
申请号：US17419462
申请日：2019-11-06
摘要： A probe body (12) in a optical probe (10) including a measurement tube (14) having a plurality of probe vents (16) adapted to allow process fluid to flow there through; two or more purge rings, each including a process window, a purge gas inlet, and a plurality of purge gas outlet openings adapted to direct purge gas toward or adjacent to the process window; and a measurement region defined by a portion of the measurement tube and two or more of the purge rings.
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公开(公告)号：US12007330B2
公开(公告)日：2024-06-11
申请号：US17419462
申请日：2019-11-06
CPC分类号： G01N21/8507 , G01N21/05 , G01N2021/0389 , G01N2021/052 , G01N2021/8578 , G01N2201/0233 , G01N2201/062
摘要： A probe body (12) in a optical probe (10) including a measurement tube (14) having a plurality of probe vents (16) adapted to allow process fluid to flow there through; two or more purge rings, each including a process window, a purge gas inlet, and a plurality of purge gas outlet openings adapted to direct purge gas toward or adjacent to the process window; and a measurement region defined by a portion of the measurement tube and two or more of the purge rings.
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公开(公告)号：US20160176780A9
公开(公告)日：2016-06-23
申请号：US14248585
申请日：2014-04-09
发明人： James D. Tate , Gerald D. Frederick , Sylvester Irving , Charles W. Lipp , Andy E. Weber , Chris Reed
IPC分类号： C07C4/04
CPC分类号： C07C4/04 , F23N5/003 , F23N5/082 , F23N2900/05001
摘要： A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker includes three steps. The thermal cracker has three consecutive zones or portions through which combustion gases pass, a firebox portion, a bridge wall portion and a convection portion The first step is to direct a wavelength modulated beam of near infrared light from two different tunable diode lasers located in the bridge wall portion through combustion gas from the burner to a pair of near infrared light detectors, each positioned to receive the wavelength modulated beam of near infrared light from a different one of the two tunable diode lasers to generate a detector signal. The second step is to analyze the detector signals for spectroscopic absorption at wavelengths characteristic of oxygen and carbon monoxide to determine their respective concentrations in the combustion gas. The third step is to adjust the air/fuel ratio of the burner(s) (excess air) in response to the concentrations of oxygen and carbon monoxide of the second step.
摘要翻译： 用于控制热裂化器的燃烧器（过量空气）的空气/燃料比的方法包括三个步骤。 热裂解器具有燃烧气体通过的三个连续的区域或部分，火炉部分，桥壁部分和对流部分。第一步骤是引导来自两个不同可调谐二极管激光器的波长调制的近红外光束， 桥壁部分通过来自燃烧器的燃烧气体到一对近红外光检测器，每个近红外光检测器定位成接收来自两个可调谐二极管激光器中不同一个的近红外光的波长调制束，以产生检测器信号。 第二步是分析检测器信号，以便在氧气和一氧化碳特征波长处进行光谱吸收，以确定其在燃烧气体中的各自的浓度。 第三步是响应于第二步的氧气和一氧化碳的浓度来调节燃烧器的空气/燃料比（过量空气）。
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公开(公告)号：US20140221718A1
公开(公告)日：2014-08-07
申请号：US14248585
申请日：2014-04-09
发明人： James D. Tate , Gerald D. Frederick , Sylvester Irving , Charles W. Lipp , Andy E. Weber , Chris Reed
IPC分类号： C07C4/04
CPC分类号： C07C4/04 , F23N5/003 , F23N5/082 , F23N2900/05001
摘要： A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker includes three steps. The thermal cracker has three consecutive zones or portions through which combustion gases pass, a firebox portion, a bridge wall portion and a convection portion The first step is to direct a wavelength modulated beam of near infrared light from two different tunable diode lasers located in the bridge wall portion through combustion gas from the burner to a pair of near infrared light detectors, each positioned to receive the wavelength modulated beam of near infrared light from a different one of the two tunable diode lasers to generate a detector signal. The second step is to analyze the detector signals for spectroscopic absorption at wavelengths characteristic of oxygen and carbon monoxide to determine their respective concentrations in the combustion gas. The third step is to adjust the air/fuel ratio of the burner(s) (excess air) in response to the concentrations of oxygen and carbon monoxide of the second step.
摘要翻译： 用于控制热裂化器的燃烧器（过量空气）的空气/燃料比的方法包括三个步骤。 热裂解器具有燃烧气体通过的三个连续的区域或部分，火炉部分，桥壁部分和对流部分。第一步骤是引导来自两个不同可调谐二极管激光器的波长调制的近红外光束， 桥壁部分通过来自燃烧器的燃烧气体到一对近红外光检测器，每个近红外光检测器定位成接收来自两个可调谐二极管激光器中不同一个的近红外光的波长调制束，以产生检测器信号。 第二步是分析检测器信号，以便在氧气和一氧化碳特征波长处进行光谱吸收，以确定其在燃烧气体中的各自的浓度。 第三步是响应于第二步的氧气和一氧化碳的浓度来调节燃烧器的空气/燃料比（过量空气）。
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