ASPIRATED PARTICLE DETECTION WITH VARIOUS FLOW MODIFICATIONS
    1.
    发明申请
    ASPIRATED PARTICLE DETECTION WITH VARIOUS FLOW MODIFICATIONS 审中-公开
    吸附颗粒检测与各种流动修改

    公开(公告)号:WO2015054749A1

    公开(公告)日:2015-04-23

    申请号:PCT/AU2014/050290

    申请日:2014-10-16

    CPC classification number: G01N1/26 G01M3/2815 G01N15/06 G08B17/10 G08B17/113

    Abstract: A method of particle detection in an aspirated particle detection system, the system having a sampling pipe network and a particle detector. The sampling pipe network includes at least one sampling pipe in fluid communication with the particle detector, a plurality of sampling inlets through which sample air can enter the at least one sampling pipe, and an opening in the at least one sampling pipe upstream of the plurality of sampling inlets, wherein the opening has lower flow impedance than any one of the sampling inlets. The method includes drawing sample air to the particle detector through the air sampling network; analysing the sample air with the particle detector; entering an amplification phase, in the event that a concentration of particles in the sample air greater than a predetermined threshold is detected, to create a plurality of sample air packets in the sampling pipe, wherein each sample air packet corresponds to a sampling inlet and includes an amplified concentration of air drawn from the corresponding sampling inlet; transporting the sample air including the plurality of sample air packets through the sampling pipe to the particle detector; and determining through which sampling inlet any particles entered the particle detection system.

    Abstract translation: 一种吸气颗粒检测系统中的颗粒检测方法,该系统具有采样管网和粒子检测器。 采样管网包括与颗粒检测器流体连通的至少一个采样管,多个取样入口,样品空气可以通过该入口进入至少一个采样管,以及在多个采样管的上游的至少一个采样管中的开口 的采样入口,其中开口具有比任何一个采样入口低的流阻抗。 该方法包括通过空气采样网将样品空气抽至颗粒检测器; 用粒子检测器分析样品空气; 在检测到样品空气中的颗粒浓度大于预定阈值的情况下进入放大阶段,以在取样管中产生多个样品空气分组,其中每个样品空气分组对应于采样入口,并且包括 从相应的取样口抽出的空气的放大浓度; 将包括多个样品空气包的样品空气通过采样管输送到颗粒检测器; 并确定通过哪个采样进口任何颗粒进入颗粒检测系统。

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