公开(公告)号：WO2014088880A1

公开(公告)日：2014-06-12

申请号：PCT/US2013/071834

申请日：2013-11-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： D'ARTENAY, Matthew, David ,  ANDERSON, Todd, Alan ,  KINGSLEY, Robert, Bruce ,  SIVARAMAKRISHNAN, Shyam

IPC: F04B9/113

CPC classification number: F04B1/00 ,  F04B5/02 ,  F04B7/00 ,  F04B9/113 ,  F04B17/00 ,  F04B23/06 ,  F04B49/065 ,  F04B53/14

Abstract: A liquid pumping system comprises a plurality of liquid pumps and a hydraulic drive unit. Each liquid pump is driven by a separate hydraulic cylinder. The hydraulic cylinders are powered by a shared hydraulic pump through a valve set. A valve set controller is configured to operate the valve set. A liquid pumping process comprises distributing an initial flow of pressurized hydraulic fluid between the hydraulic cylinders. The hydraulic cylinders move through a cycle in a phased relationship to provide a constant sum of flow rates from the liquid pumps. A membrane filtration system combines the liquid pumping system with a membrane unit. In a water treating process, feed water is pumped through the membrane unit. Brine from the membrane unit is returned to each liquid pump while that liquid pump is feeding water to the membrane unit.

Abstract translation: 液体泵送系统包括多个液体泵和液压驱动单元。 每个液体泵由独立的液压缸驱动。 液压缸由通过阀组的共用液压泵供电。 阀组控制器被配置为操作阀组。 液体泵送过程包括在液压缸之间分配加压液压流体的初始流。 液压缸以相位关系移动一个循环，以提供来自液体泵的恒定的流量总和。 膜过滤系统将液体泵送系统与膜单元相结合。 在水处理过程中，进料水被泵送通过膜单元。 来自膜单元的盐水返回到每个液体泵，同时液体泵将水送入膜单元。