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    Process and device for the continuous analysis of the composition of gases
    2.
    发明公开
    Process and device for the continuous analysis of the composition of gases 失效
    Verfahren und Vorrichtung zur kontinuierlichen Analyze der Zusammensetzung von Gasen。

    公开(公告)号：EP0390284A1

    公开(公告)日：1990-10-03

    申请号：EP90200737.6

    申请日：1990-03-27

    申请人： MIJNHARDT B.V.

    发明人： Van den Burg, Johannes Martinus Esse

    IPC分类号： G01N1/24 ,  G01N33/00

    CPC分类号： G01N33/0006 ,  G01N1/24 ,  Y10S436/90

    摘要： Process for the continuous analysis of the composition of gases, by means of a measuring head for determining the flow velocity and analysis equipment which is placed a distance away from the measuring head and is connected thereto by a sample line, a calibration gas being fed to the sample line at the measuring head, by means of which the transit time of the gases is determined, and by means of this transit time a phase shift is introduced during determining of the connection between the velocity of flow and the composition. According to the invention a series of calibration gas impulses are fed from the equipment, and the average transit time of the gases in the conditions prevailing locally at that moment is determined therewith, for the essentially continuous determination of the connection between the flow velocity and the composition.
    Device for carrying out the process comprising a measuring head (5) and analysis equipment (1) for determining the composition of the gases, provided with a source (7) of calibration gas in the analysis equipment (1), a calibration gas line (9) connected (at 11) to the sample line a short distance from the suction aperture thereof with the measuring head (5), means for maintaining the calibration gas under pressure, and means for periodically opening a valve in the calibration gas line, and means (12) for determining the transit time of the calibration gas impulses through the sample line.

    摘要翻译： 用于通过用于确定流速的测量头和分析设备连续分析气体组成的方法，该测量头与测量头距离一定距离，并通过样品管线与其连接，校准气体被供给到 在测量头处的采样线，通过该测量头确定气体的通过时间，并且借助于该通过时间，在确定流速和组成之间的连接时引入相移。 根据本发明，从设备供给一系列校准气体脉冲，并且在此确定在该时刻局部优选的条件下的气体的平均通过时间，以便基本上连续地确定流速和 组成。 用于执行包括测量头（5）和分析设备（1）的过程的装置，用于确定在分析设备（1）中设置有校准气体源（7）的气体的组成，校准气体管线 9）与测量头（5）的距离与其吸入孔短的距离的样品管（11）连接，用于将校准气体保持在压力下的装置，以及用于周期性地打开校准气体管线中的阀的装置，以及 用于确定校准气体脉冲通过样品管线的通过时间的装置（12）。