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    • 5. 再颁专利
    • Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces
    • 中空纤维膜的垂直圆柱形丝杠和保持清洁的纤维表面的方法
    • USRE42669E1
    • 2011-09-06
    • US09621234
    • 2000-07-20
    • Wayne Jerald HenshawMailvaganam MahendranHenry Behmann
    • Wayne Jerald HenshawMailvaganam MahendranHenry Behmann
    • B01D65/02B01D61/00B01D63/00C02F9/00
    • B01D65/08B01D61/18B01D61/20B01D63/02B01D63/021B01D63/022B01D63/023B01D63/026B01D63/043B01D65/02B01D69/02B01D2313/26B01D2315/06B01D2321/04B01D2321/185B01D2321/2066C02F1/444
    • A gas-scrubbed vertical cylindrical skein of “fibers” has their opposed terminal portions held in headers unconfined in a modular shell, and aerated with a cleansing gas supplied by a gas-distribution means which produces a mass of bubbles serving the function of a scrub-brush for the outer surfaces of the fibers. The skein is surprisingly effective with relatively little cleansing gas, the specific flux through the membranes reaching an essentially constant relatively high value because the vertical deployment of fibers allows bubbles to rise upwards along the outer surfaces of the fibers. The effectiveness is critically dependent upon the length of each fiber in the skein. That length is in the range from at least 0.1% more than the fixed distance between opposed faces of the skein's headers, but less than 5% greater than the fixed distance. Lack of tension allows the fibers to sway in bubbles flowing along their outer surfaces making them surprisingly resistant to being fouled by buildup of deposits of inanimate particles or microorganisms in the substrate. For use in a large reservoir, a bank of skeins is used with a gas distributor means which has fibers preferably >0.5 meter long, which together provide a surface area >10 m2. The terminal end portions of fibers in each header are kept free from fiber-to-fiber contact with a novel method of forming a header.
    • 气体洗涤的“纤维”的垂直圆柱形绞丝具有相对的端部部分保持在集管中,未封闭在模块化壳体中,并且由气体分配装置供应的清洁气体充气,其产生用于擦洗功能的大量气泡 刷子用于纤维的外表面。 通过相对较少的清洁气体,绞丝是非常有效的,通过膜的比流量达到基本上恒定的相对高的值,因为纤维的垂直展开允许气泡沿着纤维的外表面向上升起。 其效果在很大程度上取决于丝束中每根纤维的长度。 该长度在比绞合头的相对面之间的固定距离多至少0.1%的范围内,但小于固定距离的5%。 缺乏张力允许纤维在其外表面流动的气泡中摆动,使得它们惊人地抵抗由于底物中无生命的颗粒或微生物沉积物的沉积而被污染。 为了在大型储存器中使用,一串绞线与气体分配器一起使用,该装置具有优选> 0.5米长的纤维,它们一起提供了大于10m 2的表面积。 通过形成集管的新颖方法,使每个集管中的纤维的末端部分保持无纤维与纤维的接触。
    • 9. 发明授权
    • Vertical cylindrical skein of hollow fiber membranes and method of
maintaining clean fiber surfaces
    • 中空纤维膜的垂直圆柱形丝杠和保持清洁的纤维表面的方法
    • US5783083A
    • 1998-07-21
    • US690045
    • 1996-07-31
    • Wayne Jerald HenshawMailvaganam MahendranHenry Behmann
    • Wayne Jerald HenshawMailvaganam MahendranHenry Behmann
    • B01D61/18B01D61/20B01D63/02B01D63/04B01D65/02B01D65/08C02F1/44B01D61/00
    • B01D65/08B01D61/18B01D61/20B01D63/02B01D63/021B01D63/022B01D63/023B01D63/026B01D63/043B01D65/02B01D69/02B01D2313/26B01D2315/06B01D2321/04B01D2321/185B01D2321/2066C02F1/444
    • A gas-scrubbed vertical cylindrical skein of "fibers" has their opposed terminal portions held in headers unconfined in a modular shell, and aerated with a cleansing gas supplied by a gas-distribution means which produces a mass of bubbles serving the function of a scrub-brush for the outer surfaces of the fibers. The skein is surprisingly effective with relatively little cleansing gas, the specific flux through the membranes reaching an essentially constant relatively high value because the vertical deployment of fibers allows bubbles to rise upwards along the outer surfaces of the fibers. The effectiveness is critically dependent upon the length of each fiber in the skein. That length is in the range from at least 0.1% more than the fixed distance between opposed faces of the skein's headers, but less than 5% greater than the fixed distance. Lack of tension allows the fibers to sway in bubbles flowing along their outer surfaces making them surprisingly resistant to being fouled by build-up of deposits of inanimate particles or microorganisms in the substrate. For use in a large reservoir, a bank of skeins is used with a gas distributor means which has fibers preferably >0.5 meter long, which together provide a surface area >10 m.sup.2. The terminal end portions of fibers in each header are kept free from fiber-to-fiber contact with a novel method of forming a header.
    • 气体洗涤的“纤维”的垂直圆柱形绞丝具有相对的端部部分保持在集管中,未封闭在模块化壳体中,并且由气体分配装置供应的清洁气体充气,其产生用于擦洗功能的大量气泡 刷子用于纤维的外表面。 通过相对较少的清洁气体,绞丝是非常有效的,通过膜的比流量达到基本上恒定的相对高的值,因为纤维的垂直展开允许气泡沿着纤维的外表面向上升起。 其效果在很大程度上取决于丝束中每根纤维的长度。 该长度在比绞合头的相对面之间的固定距离多至少0.1%的范围内,但小于固定距离的5%。 缺乏张力允许纤维在沿其外表面流动的气泡中摇摆,使得它们惊人地抵抗被基底中无生命的颗粒或微生物沉积物的结垢所污染。 为了在大型储存器中使用,一串绞线与气体分配器一起使用,该装置具有优选> 0.5米长的纤维,它们一起提供了大于10m 2的表面积。 通过形成集管的新颖方法,使每个集管中的纤维的末端部分保持无纤维与纤维的接触。