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    • 2. 发明申请
    • BRANCHED FLOW FILTRATION AND SYSTEM
    • 分流流量和系统
    • WO2003039708A1
    • 2003-05-15
    • PCT/US2002/035352
    • 2002-11-05
    • IONICS, INCORPORATEDARNOLD, John, W.ELYANOW, Irving, D.CARSON, William, W.
    • ARNOLD, John, W.ELYANOW, Irving, D.CARSON, William, W.
    • B01D24/00
    • B01D63/106B01D61/02B01D61/022B01D61/025B01D61/027B01D61/10B01D61/12B01D63/043B01D63/10B01D63/12B01D65/00B01D2313/18C02F1/441C02F1/442
    • A cross flow filtration apparatus for nanofiltration or reverse osmosis has pressure vessels with a pluralaity of filter cartridges in each vessel. A feed port is provided at an intermediate position on the side of the vessel, and two permeate flows or branches exit opposite ends of the vessel, and the first branch has a characteristically high "upstream" flux and quality, while the second is of lesser flux and/or quality. The system provides a high degree of modularity, enhancing flux or yield at a reduced driving pressure or overall pressure drop. Centered or off-center port, and a stop or valve in the permeate stream may apportion flows between the two outlets. Staged systems may employ a first stage bypass to achieve a target quality with increased yield. A flow divider or adaptor permits the cartridges to fit and seal in the vaessel, and an installation tool or sleeve may facilate installation or replacement of cartridges having a directional perimeter seal. A tool permits modules to be bi-directional installed in the pressure vessel. Other embodiments involve adapting a conventional vessel designed for end-to-end feed flow utilizing a restrictor, obstruction or valve inside the filter cartridge to bifurcate or otherwise split or apportion the permeate. RO elements may be modified to movably position an obstruction or valve along a string of the elements and vary the take-off to two or more permeate outlets, or to provide pressure relief valves that present different pressure conditions for different elements of a string. A pressure vessel may have an intermediate inlet, with symmetric or asymmetric branching of permeate flow to opposed ends of the vessel, enhancing permeate flux, permeate quality and/or energy efficiency.
    • 用于纳滤或反渗透的交叉流过滤装置具有在每个容器中具有多个滤筒的压力容器。 进料口设在容器侧的中间位置,两个渗透物流或分支离开容器的相对端,第一分支具有特征性高的“上游”通量和质量,而第二分支较小 助焊剂和/或质量。 该系统提供高度的模块化,在降低的驱动压力或总体压降下增加通量或产量。 中心或偏心的端口,并且渗透物流中的止动件或阀可以在两个出口之间分配流动。 分级系统可以采用第一级旁路以提高产量来实现目标质量。 分流器或适配器允许墨盒安装并密封在容器中,并且安装工具或套筒可以促进安装或更换具有定向周边密封件的墨盒。 一个工具允许将模块双向安装在压力容器中。 其他实施例涉及使用设计用于端到端进料流的常规容器,利用过滤筒内的限流器,阻塞物或阀来分叉或分开或分配渗透物。 RO元件可以被修改以沿着元件串可移动地定位阻塞物或阀,并且将起飞变化到两个或更多个渗透物出口,或者提供对于弦的不同元件呈现不同压力条件的压力释放阀。 压力容器可以具有中间入口,其中渗透物流对称或不对称地分支到容器的相对端,增强渗透通量,渗透质量和/或能量效率。