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    • 1. 发明授权
    • Filtration monitoring and control system
    • 过滤监控系统
    • US6077435A
    • 2000-06-20
    • US913901
    • 1998-01-12
    • Thomas William BeckHumphrey John Jardine DrummondIan Andrew MaxwellWarren Thomas JohnsonBrett Kensett-Smith
    • Thomas William BeckHumphrey John Jardine DrummondIan Andrew MaxwellWarren Thomas JohnsonBrett Kensett-Smith
    • B01D37/04B01D61/22B01D65/02B01D65/10B01D35/143G01N15/08
    • B01D65/102B01D37/046B01D61/22B01D65/02B01D2321/04B01D2321/185
    • A method and apparatus for determining the fouling effect of a feedstream on a filter having known characteristics disclosed. The method comprises passing the feedstream through a filter (5) having known characteristics; determining the change in resistance to flow of the feedstream across the filter, either continuously or over a number of time intervals and from this data, calculating a feed fouling index (FFI) representative of the fouling characteristics of the feedstream with respect to the filter. A method and apparatus for monitoring the operation of a filtration system is also disclosed the method comprising sampling system parameter values at selected locations within the filtration system at a predetermined sampling rate; generating a parameter profile characteristic from the sampled parameter values at predetermined intervals of time; and analysing the parameter profile characteristic to determine correct operation of the filtration system. A further method and apparatus of monitoring and controlling a filtering system based on backwash efficiency is also disclosed, the method comprising determining resistance values of filtering elements used in the filtering system at predetermined times during the backwash cycle of the system by monitoring a number of operating parameters of the system; calculating a backwash efficiency value representative of the efficiency of the backwash cycle of the filtering system using the resistance values determined; and controlling the operation of the filtering system in dependence on the value of the backwash efficiency calculated.
    • PCT No.PCT / AU96 / 00144 Sec。 371日期:1998年1月12日 102(e)日期1998年1月12日PCT 1996年3月15日PCT公布。 WO96 / 28236 PCT公开号 日期1996年9月19日一种用于确定进料流对已知特征的过滤器的污垢效应的方法和装置。 该方法包括使进料流通过具有已知特性的过滤器(5); 确定进料流通过过滤器的流动阻力的变化,连续地或超过多个时间间隔,并从该数据中计算代表进料流相对于过滤器的结垢特性的进料污染指数(FFI)。 还公开了一种用于监测过滤系统的操作的方法和装置,该方法包括以预定采样速率在过滤系统内的选定位置取样系统参数值; 以预定的时间间隔从采样的参数值生成参数分布特征; 并分析参数分布特征以确定过滤系统的正确操作。 还公开了一种基于回洗效率来监测和控制过滤系统的方法和装置,该方法包括:在系统的反冲洗循环期间的预定时间,通过监视多个操作中确定在过滤系统中使用的过滤元件的电阻值 系统参数; 使用确定的电阻值计算表示所述过滤系统的反冲洗循环的效率的回洗效率值; 并根据所计算的回洗效率的值来控制过滤系统的操作。
    • 2. 发明授权
    • Cleaning of hollow fibre membranes
    • 清洁中空纤维膜
    • US6159373A
    • 2000-12-12
    • US809679
    • 1997-08-08
    • Thomas William BeckHumphrey John Jardine DrummondMatthew Brian LeeClint Virgil KoppWarren Thomas Johnson
    • Thomas William BeckHumphrey John Jardine DrummondMatthew Brian LeeClint Virgil KoppWarren Thomas Johnson
    • B01D29/11B01D61/18B01D61/20B01D61/22B01D63/02B01D65/00B01D65/02B01D65/08B01D61/00
    • B01D65/02B01D29/115B01D2321/04B01D2321/185B01D2321/2066
    • A method and apparatus for recovering fine solids from a liquid feed suspension is disclosed. The apparatus has an operating cycle including a concentration part of the cycle in which solids present in the feed suspension are concentrated and a backwash part of the cycle in which supply of feed suspension to the concentrator is interrupted, the concentrator comprises a shell (11), and a plurality of elastic, hollow, microporous, polymer fibers (12) being fixed at their ends within the shell (11). Pressurized feed suspension is supplied to the outside of the fibers during said concentration part of the cycle and the filtrate may be withdrawn from the fiber lumens during the operating cycle. During the backwash cycle the concentration part of the cycle is terminated by ceasing supply of feed to said exterior surface of the fibers (12). The shell (11) is then sealed and the remaining filtrate removed from the lumens. A source of fluid under pressure is then applied to said lumens before, at the same time as, or just after opening the shell (11) to atmosphere, to cause explosive decompression through the walls of the fibers (12) whereby the fluid under pressure passes through said walls. The pressure level in said lumens is maintained at a predetermined value for a sufficient time following said decompression to cause substantial portions of solids lodged within and/or on the fiber walls to be dislodged. The dislodged contaminant matter is then washed away by the application of a flow of liquid over the surface of the fiber walls; and the concentration part of the operating cycle is recommended by introducing the supply of feed suspension to said exterior surface of said fibers (12).
    • PCT No.PCT / AU95 / 00587 Sec。 371日期:1997年8月8日 102(e)日期1997年8月8日PCT提交1995年9月8日PCT公布。 公开号WO96 / 07470 日期:1996年3月14日公开了一种从液体进料悬浮液中回收细小固体的方法和装置。 该装置具有操作循环,其包括循环的浓度部分,其中进料悬浮液中存在的固体浓缩,并且在循环中的反冲洗部分,其中供给浓缩器的进料悬浮液被中断,所述浓缩器包括壳体(11) ,以及多个弹性中空微孔聚合物纤维(12),其端部固定在壳体(11)内。 加压进料悬浮液在循环的所述浓缩部分期间供应到纤维的外部,并且在操作循环期间可以将滤液从纤维流体中排出。 在回洗循环期间,循环的浓缩部分通过停止向纤维(12)的所述外表面的供给供给来终止。 然后将壳体(11)密封,并将剩余的滤液从管腔中移出。 然后在将壳体(11)打开到大气之前,同时或刚刚打开壳体(11)之后,将压力下的流体源施加到所述内腔,以通过纤维(12)的壁引起爆炸性减压,由此压力下的流体 穿过所述墙壁。 在所述减压之后,所述内腔中的压力水平保持在预定值足够的时间,以使得在纤维壁内和/或纤维壁上的大部分固体被移出。 然后通过在纤维壁的表面上施加液体流将洗脱的污染物质洗掉; 并且通过将进料悬浮液的供应引入所述纤维(12)的所述外表面来推荐操作循环的浓度部分。