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    METHOD AND APPARATUS FOR REMOVING SELENIUM OXIDE IN A SAMPLE, AND METHOD AND APPARATUS FOR MEASURING MERCURY IN COAL COMBUSTION EXHAUST GAS BY USING THE SAME
    4.
    发明申请
    METHOD AND APPARATUS FOR REMOVING SELENIUM OXIDE IN A SAMPLE, AND METHOD AND APPARATUS FOR MEASURING MERCURY IN COAL COMBUSTION EXHAUST GAS BY USING THE SAME 审中-公开
    用于在样品中除去氧化铅的方法和装置，以及用于测量煤燃烧中的汞的方法和装置使用它们的排气

    公开(公告)号：US20080188002A1

    公开(公告)日：2008-08-07

    申请号：US12024839

    申请日：2008-02-01

    申请人： Junji Kato ,  Shigeyuki Akiyama ,  Fujio Koga ,  Koji Ishikawa

    发明人： Junji Kato ,  Shigeyuki Akiyama ,  Fujio Koga ,  Koji Ishikawa

    IPC分类号： G01N31/12 ,  G01N33/20 ,  B01D3/00

    CPC分类号： G01N33/0045 ,  B01D53/1456 ,  B01D53/77 ,  B01D2251/408 ,  B01D2251/604 ,  B01D2255/202 ,  B01D2255/50 ,  B01D2257/60

    摘要： There is provided a method and apparatus for removing selenium oxide in a sample as well as a method and apparatus for measuring mercury in coal combustion exhaust gas by using the same. The apparatus for removing selenium oxide in a sample, comprising: (1) a heating introduction path for heating a sample, (2) a primary cooling unit having a flow path through which the heated sample flows countercurrently to cooling water, whereby the heated sample is mixed with, and cooled by, cooling water, (3) a secondary cooling unit having a spiral flow path for cooling the mixed gas and having a space for gas/liquid separation at the end of the spiral flow path, (4) a regenerator for introducing condensed water from the secondary cooling unit, and (5) a condensed water-cooling path for connecting the regenerator to the primary cooling unit.

    摘要翻译： 提供了一种用于除去样品中的氧化硒的方法和装置，以及通过使用该方法和装置测量煤燃烧废气中的汞。 用于除去样品中的氧化硒的装置，包括：（1）用于加热样品的加热引入路径，（2）具有流动路径的主冷却单元，所述加热样品通过该流路与冷却水逆流流动，由此加热样品 （3）二次冷却单元，其具有用于冷却混合气体的螺旋流动路径，并且在螺旋流动路径的端部具有用于气/液分离的空间，（4）a 用于从二次冷却单元引入冷凝水的再生器，以及（5）将再生器连接到一次冷却单元的冷凝水冷路。

    Gas analyzer
    5.
    发明授权
    Gas analyzer 失效
    气体分析仪

    公开(公告)号：US5693945A

    公开(公告)日：1997-12-02

    申请号：US508816

    申请日：1995-07-28

    申请人： Shigeyuki Akiyama ,  Masahiko Fujiwara ,  Fujio Koga ,  Naohito Shimizu ,  Toshihiko Uno ,  Aritoshi Yoneda

    发明人： Shigeyuki Akiyama ,  Masahiko Fujiwara ,  Fujio Koga ,  Naohito Shimizu ,  Toshihiko Uno ,  Aritoshi Yoneda

    IPC分类号： G01N21/33 ,  G01N21/35 ,  G01N21/61

    CPC分类号： G01N21/3504 ,  G01N21/33

    摘要： An ultraviolet light source is provided on one end of a cell into which a sample gas is introduced. A beam splitter for dividing beams which have been transmitted through the cell into two optical paths is provided on the other end of the cell. A first detector is provided in one optical path, and a second detector is provided in the other optical path. A gas filter filled with a component to be measured is positioned between the detectors and beam splitter so that a concentration of the component to be measured may be obtained on the basis of a difference between the output of the first detector and the product of the output of the second detector and an appointed constant. Influences resulting from components coexisting in the sample gas are reduced. Alternatively, an infrared light source may be provided on one end of a sample cell. A gas filter filled with a gas the same as the gas to be measured is provided at the other end of the sample cell. A reference filter filled with a non-absorbing gas is positioned parallel to the gas filter. A beam splitter and a detector are sequentially disposed downstream from the gas filter, and a mirror is disposed downstream from the reference filter. The mirror is positioned such that beams which passed through the reference filter may be directed to the beam splitter and, subsequently, the detector.

    摘要翻译： 在其中引入样品气体的单元的一端设置紫外光源。 用于将已经通过单元传输的光束分成两个光路的分束器设置在电池的另一端。 第一检测器设置在一个光路中，第二检测器设置在另一个光路中。 填充有要测量的部件的气体过滤器位于检测器和分束器之间，使得可以基于第一检测器的输出与输出的乘积之间的差异来获得要测量的部件的浓度 的第二个检测器和一个指定的常数。 减少了样品气体中共存的成分的影响。 或者，可以在样品池的一端上设置红外光源。 填充有与待测气体相同的气体的气体过滤器设置在样品池的另一端。 填充有非吸收气体的参考过滤器平行于气体过滤器定位。 分流器和检测器顺序地布置在气体过滤器的下游，并且反射镜设置在参考过滤器的下游。 反射镜被定位成使得通过参考滤光器的光束可以被引导到分束器，并且随后被引导到检测器。