Fiber bed separator and method for separation of aerosols from gases
without re-entrainment
    91.
    发明授权
    Fiber bed separator and method for separation of aerosols from gases without re-entrainment 失效
    纤维床分离器和从气体中分离气溶胶的方法,无需重新夹带

    公开(公告)号:US4086070A

    公开(公告)日:1978-04-25

    申请号:US737291

    申请日:1976-11-01

    摘要: A fiber bed separator and method are provided for separating aerosols of 3 microns and less from gases. Two fiber beds in intimate contact with one another are used. The first fiber bed, in the direction of gas flow is of fibers of at least about 5 microns mean diameter packed to a bed voidage of from about 85 to 98%, the fiber diameter and bed voidage being selected such that at design bed velocity and aerosol loading the first bed is not flooded and the residual saturation of said first fiber bed against gas drag on the liquid collected is less than the residual saturation of said bed against gravity drainage of the liquid. The second fiber bed is packed to a bed voidage of from about 85 to 99% with fibers of equal or greater mean diameter than those in the first fiber bed such that the residual saturation of said second fiber bed against gas drag is greater than the residual saturation of the bed against gravity drainage. In various preferred embodiments are high efficiency separators using fibers of from about 5 to 20 microns mean diameter in the first fiber bed and from about 25 to 35 microns in the second fiber bed; and high velocity separators using fibers of from about 25 to 75 microns mean diameter in the first fiber bed and from about 30 to 300 microns in the second fiber bed.

    摘要翻译: 提供了一种纤维床分离器和方法,用于从气体中分离出3微米以下的气溶胶。 使用两个彼此紧密接触的纤维床。 第一纤维床在气流方向上的纤维是至少约5微米的平均直径填充到床空隙率为约85至98%的纤维,纤维直径和床空隙被选择为使得在设计床速度和 气溶胶装载第一床不被淹没,并且所收集的液体上的所述第一纤维床的气体阻力的残余饱和度小于所述床的残余饱和度以防止液体的重力引流。 第二纤维床被填充到具有等于或大于第一纤维床的平均直径的纤维的约85至99%的床空隙度,使得所述第二纤维床对气体阻力的残余饱和度大于残余物 饱和床反重力引流。 在各种优选实施方案中,使用在第一纤维床中平均直径约5至20微米,在第二纤维床中约25至35微米的纤维的高效分离器; 和高速分离器,其使用在第一纤维床中平均直径约25至75微米的纤维和在第二纤维床中约30至300微米的纤维。

    Fiber bed separator
    92.
    发明授权
    Fiber bed separator 失效
    光纤分离器

    公开(公告)号:US4053290A

    公开(公告)日:1977-10-11

    申请号:US733661

    申请日:1976-10-18

    摘要: This invention provides vertically disposed fiber bed elements and separators containing the same wherein "bubble re-entrainment" of a collected liquid phase in a gas stream flowing through the fiber bed is substantially eliminated or reduced. "Bubble re-entrainment" refers to that re-entrainment of liquid which occurs at the bottom of the fiber bed where the cumulative drainage of the liquid is at its maximum. This is accomplished by providing at the bottom of the fiber bed a vertically disposed gas flow baffle means such as, e.g., a baffle plate, such that some portion of the fiber bed is disposed downstream of the baffle means and shielded by the lee side of said baffle means from the moving gas stream, said shielding being effective throughout the shielded portion of the fiber bed to reduce the bed velocity of any gas flowing therethrough to below a bubble re-entraining velocity. In a preferred embodiment, the fiber bed is a bicomponent bed of two fiber beds, the first or upstream bed being of at least 5 micron mean diameter fibers, the second or downstream bed being of somewhat coarser fibers than, in intimate contact with, the first bed, and the baffle means being disposed at the interface between the two beds.

    Electrostatic filter
    93.
    发明授权
    Electrostatic filter 失效
    静电过滤器

    公开(公告)号:US3979189A

    公开(公告)日:1976-09-07

    申请号:US545077

    申请日:1975-01-29

    申请人: Magnus Alskog

    发明人: Magnus Alskog

    IPC分类号: B03C3/09 B03C3/36 B03C3/45

    CPC分类号: B03C3/36 Y10S55/25 Y10S55/38

    摘要: An electrostatic filter for separating particles suspended in air has an electrically conducting elongate separation tube and an elongate electrode within the tube connected to a high-voltage direct current source to produce an electric charge current from the electrode to the tube. The tube has air-inlet openings distributed over the surface thereof and is covered with a layer of air-permeable material. The layer of air-permeable material is dimensioned and said air-inlet openings are dimensioned and spaced over the surface of the separation tube to to provide an air resistance such that substantially the same pressure drop of the air passing through the layer and the air-inlet openings to the interior of the separation tube along the whole length of the separation tube covered by the layer is created.

    摘要翻译: 用于分离悬浮在空气中的颗粒的静电过滤器具有导电细长分离管和管内的细长电极,连接到高压直流电源以产生从电极到管的电荷电流。 管具有分布在其表面上的空气入口开口,并被一层透气材料覆盖。 透气材料层的尺寸确定并且所述空气入口开口在分离管的表面上的尺寸和间隔设置成提供空气阻力,使得通过层和空气导入材料的空气基本上相同的压降, 产生了分离管内部沿着被层覆盖的分离管的整个长度的入口开口。

    Electrostatic agglomeration apparatus
    96.
    发明授权
    Electrostatic agglomeration apparatus 失效
    静电聚光装置

    公开(公告)号:US3826063A

    公开(公告)日:1974-07-30

    申请号:US36214173

    申请日:1973-05-21

    申请人: FESTNER T

    发明人: FESTNER T

    IPC分类号: B03C3/017 B03C3/00

    摘要: An electrostatic agglomeration apparatus for an air filtering and conditioning system, comprising an air duct having a pair of channels disposed either within the duct or adjacent thereto and opening into the duct at both ends. A plurality of electrically conductive rods are disposed in the channels and are charged electrically positive in one channel and negative in the other channel so that particulate matter flowing into the channels is ionized by the charges on the electrical rods and agglomerates to form larger particulate masses which are more easily filterable from the air flowing through the system.

    摘要翻译: 一种用于空气过滤和调节系统的静电聚集装置,包括具有一对通道的空气管道,该通道设置在管道内或与其相邻并且在两端开放进入管道。 多个导电棒设置在通道中,并且在一个通道中是电正的,而在另一个通道中是负电的,使得流入通道的颗粒物质被电杆和附聚物上的电荷电离以形成更大的颗粒物质, 更容易从流经系统的空气中过滤。

    Scru bing apparatus
    97.
    发明授权
    Scru bing apparatus 失效
    SCRU BING APPARATUS

    公开(公告)号:US3785127A

    公开(公告)日:1974-01-15

    申请号:US3785127D

    申请日:1971-02-22

    申请人: HERSHBERGER J

    发明人: MARE E

    IPC分类号: B01D45/08 B01D47/06 B01D50/00

    摘要: An apparatus for scrubbing a stream of air or other gas with a scrubbing liquid (e.g., water). The scrubbing is carried out in successive stages simultaneously with classification of the removed material, the removed material being withdrawn as separate fractions. Each stage is provided with means for scrubbing the gas with liquid droplets and by impingement with surfaces wet with liquid, and also with means for eliminating droplets whereby they are not delivered to the next scrubbing stage.

    摘要翻译: 一种用洗涤液(例如水)洗涤空气或其它气体流的装置。 洗涤在连续阶段进行,同时分离除去的材料,除去的材料作为分离的馏分取出。 每个阶段都设置有用液滴洗涤气体和通过与表面湿润的液体冲击的装置,以及用于消除液滴的装置,由此它们不被输送到下一个洗涤阶段。

    Filtering process
    98.
    发明授权
    Filtering process 失效
    过滤过程

    公开(公告)号:US3745748A

    公开(公告)日:1973-07-17

    申请号:US3745748D

    申请日:1970-10-29

    申请人: JOHNS MANVILLE

    发明人: GOLDFIELD J GRECO V

    IPC分类号: B01D39/20 B01D46/18 B01D25/24

    摘要: Filtration of submicron liquid and solid particles from large volumes of gas in which the particles are carried is accomplished by passing the gas through a filter medium made up of fibers having an average diameter of up to about 10 microns at a velocity of at least 300 feet per minute and at a pressure drop not greater than 40 inches of water to remove at least 80 percent of such particles.