Fan filter unit with sound-absorbing wedges

    公开(公告)号:US06524064B2

    公开(公告)日:2003-02-25

    申请号:US09862335

    申请日:2001-05-23

    IPC分类号: B01D4610

    CPC分类号: F04D29/664 F04D29/703

    摘要: A fan filter unit includes a housing having a side wall and a top wall with a bell mouth serving as an air inlet and an open bottom to which a filtering net is attached to serve as an air outlet. A centrifugal fan is arranged in the housing to drive the air from inlet. The fan assembly has an output port for driving an air flow toward the air outlet. A guide plate is arranged in the housing for guiding the air flow along the path from the fan assembly to the air outlet. A sound-absorbing structure including a plurality of wedge-shaped elements made of a sound-absorbing material is attached to the side wall. The wedge-shaped elements are arranged in a line for effectively reducing noise level caused by the operation of the fan assembly. A second line of wedge-shaped elements is optionally attached to the side wall with the wedge-shaped elements of the two lines alternating each other.

    HYDROGEN-GENERATING EQUIPMENT
    4.
    发明申请
    HYDROGEN-GENERATING EQUIPMENT 审中-公开
    氢气发生设备

    公开(公告)号:US20130129572A1

    公开(公告)日:2013-05-23

    申请号:US13677308

    申请日:2012-11-15

    IPC分类号: C01B3/56

    摘要: A hydrogen-generating equipment including a hydrogen-generating device and a hydrogen-purifying device is provided. The hydrogen-generating device is capable of generating a hydrogen-gas, a water-vapor mixed in the hydrogen-gas and a toxic-gas mixed in the hydrogen-gas. The hydrogen-purifying device includes a water-vapor filter unit and a toxic-gas filter unit. The hydrogen-gas passes through the water-vapor filter unit to remove the water-vapor mixed in the hydrogen-gas. The toxic-gas filter unit includes a filtering assembly. The surface of the filtering assembly has a plurality of hydroxyls. After the hydrogen-gas passes through the water-vapor filter unit, the hydrogen-gas passes through the toxic-gas filter unit, and the toxic-gas mixed in the hydrogen-gas reacts with a plurality of hydroxyls on a surface of the filtering assembly to remove the toxic-gas.

    摘要翻译: 提供了包括氢生成装置和氢净化装置的氢发生装置。 氢生成装置能够产生氢气,在氢气中混合的水蒸汽和混入氢气中的有毒气体。 氢净化装置包括水蒸汽过滤器单元和有毒气体过滤器单元。 氢气通过水蒸气过滤器单元以去除在氢气中混合的水蒸气。 有毒气体过滤器单元包括过滤组件。 过滤组件的表面具有多个羟基。 在氢气通过水蒸汽过滤器单元之后,氢气通过有毒气体过滤器单元,并且与氢气混合的有毒气体与过滤表面上的多个羟基反应 组装去除有毒气体。