A METHOD AND APPARATUS FOR DILUTION OF AEROSOLS
    1.
    发明申请
    A METHOD AND APPARATUS FOR DILUTION OF AEROSOLS 审中-公开
    一种用于气溶胶稀释的方法和装置

    公开(公告)号:US20160139013A1

    公开(公告)日:2016-05-19

    申请号:US14899870

    申请日:2014-06-20

    Abstract: The invention provides an apparatus set up for diluting aerosols; the apparatus comprising: (i) a dilution chamber (1); (ii) an aerosol inlet (2) on one side of the dilution chamber for admitting an aerosol into the dilution chamber; (iii) an aerosol outlet (3) on the same or another side of the dilution chamber through which diluted aerosol particles can leave the dilution chamber; (iv) a diluent gas inlet (4) for admitting into the chamber a diluent gas; (v) a diluent gas outlet (5) through which diluent gas can leave the dilution chamber; (vi) a gas flow maintenance system (6) that provides circulation of the diluent gas through the dilution chamber; and (vii) means for determining the extent of dilution of the aerosol leaving the aerosol outlet. The invention also provides methods of diluting and counting aerosol particles using the apparatus of the invention.

    Abstract translation: 本发明提供了一种用于稀释气溶胶的装置; 该设备包括:(i)稀释室(1); (ii)在稀释室的一侧上的气溶胶入口(2),用于将气溶胶进入稀释室; (iii)在稀释室的相同或另一侧上的气溶胶出口(3),稀释的气溶胶颗粒可以通过稀释气体出口离开稀释室; (iv)用于将稀释气体进入腔室的稀释气体入口(4); (v)稀释气体出口(5),稀释气体可通过该稀释气体出口离开稀释室; (vi)气体维持系统(6),其提供稀释气体通过稀释室的循环; 和(vii)用于确定离开气溶胶出口的气溶胶的稀释程度的装置。 本发明还提供使用本发明的装置稀释和计数气溶胶颗粒的方法。

    APPARATUS FOR CHARGING OR ADJUSTING THE CHARGE OF AEROSOL PARTICLES
    2.
    发明申请
    APPARATUS FOR CHARGING OR ADJUSTING THE CHARGE OF AEROSOL PARTICLES 审中-公开
    装载或调整喷雾剂颗粒电荷的装置

    公开(公告)号:US20160126081A1

    公开(公告)日:2016-05-05

    申请号:US14897567

    申请日:2014-06-10

    CPC classification number: H01J49/168 H01J27/26 H01J49/145

    Abstract: The invention provides an apparatus for charging or altering the charge of gas-entrained particles in an aerosol, the apparatus comprising:(a) an ion generating chamber (1) containing a first electrode (2) for generating a corona discharge, the first electrode (2) being connected to a power supply of sufficiently high voltage to create the corona discharge; the ion generating chamber (1) having an ion outlet (10) through which ions generated by the corona discharge can leave the chamber (1); (b) a particle charging chamber (5) in which charging or altering the charge of gas-entrained particles in an aerosol takes place, the particle charging chamber (5) being in fluid communication with the ion generation chamber (1) and having an inlet and an aerosol outlet; and (c) an electrically non-conductive interface body (7) positioned between the aerosol particle charging chamber (5) and the ion generating chamber (1), the interface body (7) having a hollow interior which is in fluid communication with the ion generating chamber (1) and the aerosol particle charging chamber, and having a gas inlet (8) through which a stream of gas can be introduced into the hollow interior of the interface body (7).

    Abstract translation: 本发明提供了一种用于装载或改变气溶胶中的气体夹带颗粒的装料的装置,该装置包括:(a)含有用于产生电晕放电的第一电极(2)的离子产生室(1),所述第一电极 (2)连接到足够高电压的电源以产生电晕放电; 所述离子产生室(1)具有离子出口(10),由所述电晕放电产生的离子通过所述离子出口离开所述室(1); (b)在气溶胶中充入或改变气体夹带的颗粒的电荷的颗粒装料室(5),所述颗粒装料室(5)与所述离子产生室(1)流体连通并具有 入口和气溶胶出口; 和(c)位于气溶胶粒子充电室(5)和离子产生室(1)之间的非导电界面体(7),所述界面体(7)具有中空的内部,其与 离子产生室(1)和气溶胶颗粒充电室,并具有气体入口(8),气体流可以通过该气体引入到界面体(7)的中空内部。

    CONDENSATION APPARATUS
    3.
    发明申请
    CONDENSATION APPARATUS 审中-公开
    冷凝装置

    公开(公告)号:US20150000595A1

    公开(公告)日:2015-01-01

    申请号:US14485221

    申请日:2014-09-12

    Abstract: The invention provides an apparatus for increasing the size of gas-entrained particles in order to render the gas-entrained particles detectable by a particle detector, the apparatus comprising an evaporation chamber (2) and a condenser (7); the apparatus is configured so that vapour-laden gas from the evaporation chamber can flow into the condenser and condensation of the vaporisable substance onto gas-entrained particles in the condenser takes place to increase the size of the particles so that they are capable of being detected by a particle detector.

    Abstract translation: 本发明提供了一种用于增加气体夹带颗粒的尺寸的装置,以使由气体夹带的颗粒可被颗粒检测器检测到,该装置包括蒸发室(2)和冷凝器(7); 该装置构造成使得来自蒸发室的含气体气体可以流入冷凝器,并且可冷凝物中的可蒸发物质与气体夹带的颗粒的冷凝发生,以增加颗粒的尺寸,使得它们能够被检测 通过粒子检测器。

    CONDENSATION APPARATUS
    4.
    发明申请

    公开(公告)号:US20180133744A1

    公开(公告)日:2018-05-17

    申请号:US15867672

    申请日:2018-01-10

    Abstract: The invention provides an apparatus for increasing the size of gas-entrained particles in order to render the gas-entrained particles detectable by a particle detector, the apparatus comprising an evaporation chamber (2) and a condenser (7); the evaporation chamber (2) having an inlet (1) for admitting gas into the evaporation chamber and an outlet through which vapour-laden gas may leave the evaporation chamber; the evaporation chamber (2) having disposed therein a heating element (3) and a porous support (6), the heating element being in direct contact with the porous support, wherein the porous support (6) carries thereon a vaporisable substance and the heating element (3) is heatable to vaporise the vaporisable substance to form vapour within the evaporation chamber (2); the condenser (2) being in fluid communication with the outlet of the evaporation chamber, and the condenser (7) having an outlet for connection to the particle detector. the apparatus being configured so that vapour-laden gas from the evaporation chamber can flow into the condenser and condensation of the vaporisable substance onto gas-entrained particles in the condenser takes place to increase the size of the particles so that they are capable of being detected by a particle detector.

    A METHOD FOR OBTAINING AEROSOL PARTICLE SIZE DISTRIBUTIONS
    5.
    发明申请
    A METHOD FOR OBTAINING AEROSOL PARTICLE SIZE DISTRIBUTIONS 有权
    一种获取气溶胶粒度分布的方法

    公开(公告)号:US20160370320A1

    公开(公告)日:2016-12-22

    申请号:US14898934

    申请日:2014-06-17

    Abstract: The invention provides a method for obtaining aerosol particle size distributions with a scanning mobility particle sizer (SMPS) device comprising a differential mobility analyzer (DMA); which method comprises the stages: (i) collecting a first data set of particle concentrations vs. size for a size range from a predetermined minimal size Dmin to an intermediate size Dt by varying a voltage applied to a DMA column of an SMPS from Vmin to Vt1 at a first sheath flow rate Qsh1; (ii) changing the sheath flow rate from the first sheath flow rate Qsh1 to a second sheath flow rate Qsh2; (iii) collecting a second data set of particle concentrations vs. size for a size range from the intermediate size Dt to a predetermined maximum size Dmax by varying the voltage applied to the DMA column of the SMPS from Vt2 to Vmax at the second sheath flow rate Qsh2; (iv) convolving the first data set from stage (i) using an apparatus function of the DMA and the sheath flow rates Qsh1 and Qsh2 in stage (ii); (v) combining the convolved data set from stage (iv) with the second data set from stage (iii) to form a merged data set corresponding to the size distribution from Dmin to Dmax; and (vi) deconvolving the merged data set to provide a size distribution for the full size range Dmin to Dmax. Also provided are a DMA, SMPS or Fast Mobility Particle Sizer (FMPS) apparatus set up to perform the method.

    Abstract translation: 还提供了一种用于执行该方法的DMA,SMPS或快速移动粒度仪(FMPS)装置。

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