公开(公告)号：US20050067341A1

公开(公告)日：2005-03-31

申请号：US10946276

申请日：2004-09-20

申请人： Dennis Green ,  George Piegols ,  John Lombardi ,  Gary Herbert

发明人： Dennis Green ,  George Piegols ,  John Lombardi ,  Gary Herbert

IPC分类号： B01D61/02 ,  B01D61/14 ,  B01D65/02 ,  C02F20060101 ,  C02F1/00 ,  C02F1/44

CPC分类号： B01D65/02 ,  B01D61/022 ,  B01D61/12 ,  B01D61/142 ,  B01D61/22 ,  B01D2311/10 ,  B01D2311/14 ,  B01D2311/16 ,  B01D2313/48 ,  B01D2317/025 ,  B01D2317/027 ,  B01D2317/04 ,  B01D2321/02 ,  B01D2321/04 ,  B01D2321/16 ,  C02F1/44 ,  C02F2209/005 ,  C02F2303/16

摘要： A method is provided for the continuous production of treated waters using a staged, tapered array membrane plant by a process of process-logic-controlled (PLC) stage or stage increment isolation and removal from service, washing and return-to-service concurrent with the continued operation of all other stages and/or stage increments of the plant. Specifically, there are plant mounted input/output sensors that supply the PLC with the data required to identify the location and degree of “fouling” of the individual stages or stage increments of a tapered array membrane water treatment plant, where fouling is defined as a loss of water flow through a membrane surface at a given pressure when compared to a water flow standard for the surface. When a stage or stage increment of a plant is defined by this process to be “fouled,” the PLC commands the initiation of a sequence of automated valve openings and closings to a) remove the fouled stage or stage increment from feed water treatment service, b) to flush and wash the stage or stage increment, and c) to return the stage or stage increment to feed water treatment service. Optionally the PLC function can be extended to include the monitoring and control of ancillary valves and a variable-frequency-drive feed water pump to command the parts of a plant that remain on-line during the process of a stage or stage increment wash to continue to produce more, or less, or volumetrically identical amounts of membrane water treatment process permeate by combinations of valve re-settings, pump speed adjustments, and stage-to-stage intermediate water diversion.

摘要翻译： 提供了一种方法，用于通过过程逻辑控制（PLC）阶段或阶段增量隔离和移除服务，洗涤和返回服务同时使用分阶段锥形阵列膜装置连续生产处理水 工厂的所有其他阶段和/或阶段增量的持续运行。 具体来说，有工厂安装的输入/输出传感器，为PLC提供识别锥形阵列膜水处理厂的各个阶段或阶段增量的“结垢”的位置和程度所需的数据，其中结垢被定义为 当与表面的水流标准相比时，在给定压力下水的流失通过膜表面。 当工厂的阶段或阶段增量由该过程定义为“污染”时，PLC命令启动一系列自动阀门开启和关闭，以便a）从给水处理服务中移除污染阶段或阶段增量， b）冲洗和冲洗阶段或阶段增量，以及c）使阶段或阶段增量返回给水处理服务。 可选地，PLC功能可以扩展到包括辅助阀的监控和控制以及变频驱动给水泵，以指令在阶段或阶段增量清洗过程中保持在线的工厂的部件以继续 通过阀重新设定，泵速调节和阶段到阶段中间分水的组合来产生更多或更少或体积相等量的膜水处理过程渗透物。