Vapor membrane dehumidification for air cycle environment control system
    1.
    发明授权
    Vapor membrane dehumidification for air cycle environment control system 失效
    空气循环环境控制系统的气膜除湿

    公开(公告)号:US06705092B1

    公开(公告)日:2004-03-16

    申请号:US09992671

    申请日:2001-11-14

    IPC分类号: F25D900

    CPC分类号: B01D53/22 B01D53/268

    摘要: The vapor membrane dehumidification device and method for air cycle environment control systems uses a semipermeable vapor membrane for water vapor, air separation. The vapor membrane has a high water to air permselectivity. When air containing water vapor is passed over or through the semipermeable fibers of the membrane countercurrently or crosscurrently to a purge air stream the water vapor may permeate through the fibers. Using a purge air stream of lower water vapor partial pressure relative to the feed moist air stream, the water vapor is moved to the purge air stream due to the partial pressure differential of water vapor and then expelled overboard with the purge air stream. The purge air stream can be replaced with any source of air internal or external to the aircraft such as air from the aircraft cabin.

    摘要翻译: 用于空气循环环境控制系统的蒸气膜除湿装置和方法使用半透膜蒸汽膜进行水蒸汽,空气分离。 蒸气膜具有高水对空气的选择性。 当含有水蒸汽的空气通过或通过膜的半透性纤维逆流或交叉流过吹扫空气流时,水蒸气可渗透通过纤维。 使用相对于进料湿空气流的较低水蒸气分压的吹扫空气流,由于水蒸汽的分压差,水蒸气被移动到吹扫空气流中,然后用吹扫空气流排出。 吹扫空气流可以用飞机内部或外部的任何空气源代替,例如来自飞机机舱的空气。