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    • 4. 发明授权
    • Method and assembly for determining soot particles in a gas stream
    • 用于测定气流中烟灰颗粒的方法和装配
    • US07830508B2
    • 2010-11-09
    • US11813815
    • 2006-01-12
    • René Paul OtjesLaura Hernández Alpizar
    • René Paul OtjesLaura Hernández Alpizar
    • G01N15/02
    • G01N15/0205G01N1/2205G01N1/2211G01N1/2214G01N1/2252G01N2001/2217G01N2015/0693
    • Method and assembly for determining the presence of soot particles in a gas stream such as in the air. To prevent the disturbing effect of salts and the like that may be deposited on soot particles, it is proposed to introduce the soot particles into water as a suspension. The salts concerned dissolve in the water and have no effect when determining the change in optical properties resulting from the presence of the soot particles. This determination comprises in particular a light transmittance measurement. The presence of the soot particles can be determined after the gas stream is first passed through a filter, as a result of which a particle size distribution can be determined.Suspension of the soot particles can be achieved by subjecting these to a stream of steam, whereby the steam condenses on the soot particles and then causes these to precipitate out of the gas. The various processes can be expedited by using a cyclone.
    • 用于确定诸如空气中的气流中烟灰颗粒的存在的方法和组件。 为了防止可能沉积在烟灰颗粒上的盐等的干扰效果,建议将烟灰颗粒引入作为悬浮液的水中。 当确定由烟灰颗粒的存在导致的光学性质的变化时,所涉及的盐溶解在水中并且没有影响。 该测定特别包括透光率测量。 可以在气流首先通过过滤器之后确定烟灰颗粒的存在,结果可以确定粒度分布。 烟灰颗粒的悬浮可以通过将它们经受蒸汽流来实现,由此蒸汽在烟灰颗粒上冷凝,然后使它们从气体中沉淀出来。 可以通过使用旋风加快各种过程。
    • 5. 发明授权
    • Integrated airborne substance collection and detection system
    • 综合空气中物质收集和检测系统
    • US07633606B2
    • 2009-12-15
    • US11509872
    • 2006-08-24
    • Allen NorthrupFarzad PourahmadiBob YuanAmy J. Devitt
    • Allen NorthrupFarzad PourahmadiBob YuanAmy J. Devitt
    • G01N21/00
    • G08B21/12G01N1/2273G01N2001/2217
    • A collection and detection system is configured as a detect to warn system in which the presence of specific types of particles are detected, and may or may not be identified. An air collection module intakes ambient air, detect the presence of one or more different types of airborne particles within the ambient air, and collect the airborne particles, such as within a fluid. A triggering mechanism is positioned to continuously monitor the airflow, to determine one or more characteristics of the airborne particles. If those measured characteristics match specific known characteristics, a trigger signal is generated. In response, a confirmation device performs a detection method on a fluid solution including the airflow particles to determine the presence of one or more different types of specific biological particles.
    • 收集和检测系统被配置为检测到警告系统,其中检测到特定类型的粒子的存在,并且可以或可以不被识别。 空气收集模块进入环境空气,检测在环境空气中存在一种或多种不同类型的空气中的颗粒,并收集空气中的颗粒,例如在流体内。 定位触发机构以连续监测气流,以确定空气中的颗粒的一个或多个特性。 如果这些测量特性符合特定的已知特性,则产生触发信号。 作为响应,确认装置对包括气流颗粒的流体溶液执行检测方法以确定一种或多种不同类型的特定生物颗粒的存在。
    • 6. 发明申请
    • SYSTEM FOR THE TRANSFER AND DETECTION OF GAS DISSOLVED IN FLUID UNDER PRESSURE II
    • 用于压力流体中溶解气体的传输和检测系统II
    • US20080289396A1
    • 2008-11-27
    • US12126628
    • 2008-05-23
    • Bruce JohnsonCraig McNeil
    • Bruce JohnsonCraig McNeil
    • B01D19/00G01N7/10
    • G01N1/2214B01D19/0031B01D63/065B01D69/10G01N1/2211G01N7/10G01N2001/2217
    • A gas separation system suited for extraction of gas dissolved in pressurized fluid. The system includes a semi-permeable membrane in the form of tubing having an inner core volume with an internal support present within the inner core volume. The internal support provides multiple cylindrical supporting surfaces which are presented to the inside tubing wall surface to prevent collapse of the tubing wall against external pressure. Internal supports may include a coil of spring-like configuration fitted coaxially within the tubing; or multiple filaments that form a longitudinal bundle within the core of the tubing. The response time of the system may be enhanced by the presence of an outer tubular conduit surrounding the semi-permeable membrane tubing and providing a flow path for the external fluid to increase the rate of diffusion of dissolved gases through the semi-permeable membrane. Gas pressures may be a sensed, both total and partial, as well as the identity of respective sampled gases.
    • 适用于提取溶解在加压流体中的气体的气体分离系统。 该系统包括管状形式的半透膜,其具有内芯体积,其内部支撑件存在于内芯体积内。 内部支撑件提供多个圆柱形支撑表面,其呈现在内部管壁表面上,以防止管壁破坏外部压力。 内部支撑件可以包括同轴地配合在管内的弹簧状构件的线圈; 或在管的芯中形成纵向束的多根长丝。 系统的响应时间可以通过围绕半渗透膜管的外部管状导管的存在来提高,并且为外部流体提供流路以增加溶解气体通过半透膜的扩散速率。 气体压力可以是检测到的,总的和部分的以及相应的取样的气体的身份。
    • 7. 发明授权
    • Air sampler
    • 空气取样器
    • US07261008B2
    • 2007-08-28
    • US10207946
    • 2002-07-30
    • Elric W. SaaskiChuck C. JungDavid A. McCrae
    • Elric W. SaaskiChuck C. JungDavid A. McCrae
    • G01N1/00
    • G01N1/2273G01N1/2211G01N2001/2217G01N2001/2223G01N2001/245G01N2001/4066
    • An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through the air sampler may be generated by a fan that is either external or internal with respect to the main body's cyclonic cup. A thin film of stripping liquid and/or a fog of stripping liquid particles in the air inlet tube, the cyclonic cup, the stripping column and/or the demister strip a target material from the air flow through the air sampler. A passive fog generating slot or a passive spiral fog generating nozzle may be placed over the fluid input conduit in the center of the cyclonic cup. The air sampler's main body and/or an air inlet tube may be integrally formed as one part. The main body's inner surfaces may be selected to be hydrophilic, for better flow of the thin film of stripping liquid across them; and its intersecting internal surfaces may be provided with smoothly curved fillets for better air and liquid flow over them. The air sampler may be provided with a liquid level control that may have a reservoir float monitored by external optical sensors; a flexible, capacitive effect, dual electrode bearing substrate that is wrapped around the exterior of the air sampler's stripping column; or an external optical bubble sensor for the reservoir's output conduit. The air sampler may be so small, light and low in energy consumption that it may be battery powered and human-portable; and may be so efficient that it may be used to strip target material that is present in the incoming air in concentrations of only a few parts per trillion, or less.
    • 一种用于从其中夹带微粒的气态流体分离微粒的冲击颗粒收集器。 冲击颗粒收集器包括(a)具有驱动转动的驱动轴的原动机; (b)机械地联接到驱动轴并由此旋转的叶轮; 和(c)用于叶轮的壳体,所述壳体限定用于输送气体流体的流体通道,其中微粒被夹带到叶轮中,所述叶轮包括将气体流体吸入壳体中的叶片,使得夹带在 气体流体冲击叶轮,从而与叶轮的叶片撞击时与气态流体分离。 在另一个实施例中,一种空气采样器,其包括具有入口和出口的主体; 叶轮联接到主体,叶轮由马达驱动并被构造成将具有目标材料的气体拉过叶轮,从而从气体中提取目标材料。 在另一个实施方案中,一种空气冲压方法,其包括通过旋转叶轮将包含目标材料的气体横跨叶轮抽吸; 通过旋转叶轮使液体与叶轮接触; 用液体冲击目标材料; 以及在容器中收集含有目标材料的液体。