Filter module and the stringing thereof to form a filter system

摘要

A filter module comprising a pressure pipe and a membrane disposed therein, having connections for a fluid to be fed, preferably untreated water, and for filtrate and retentate to be discharged, characterized by a functional/connection unit which is fastened in one end of the pressure pipe and has an upper part and a lower part, wherein all of the connections are provided on the upper part, and flow ducts which are in communication with the connections pass through the lower part, wherein the pressure pipe and the membrane have provided thereinbetween an open annular space through which the fed fluid flows to the bottom side of the membrane, and wherein the pressure pipe has a closed bottom.

主权项

1. A filter module comprising a pressure pipe and a membrane disposed therein, having connections for a fluid to be fed, and for filtrate and retentate to be discharged,
wherein a functional and connection unit is fastened to an end of the pressure pipe and has an upper part and a cylindrical lower part, wherein the fluid feed, filtrate discharge, and retentate discharge connections are further provided on the upper part and flow ducts in communication with the fluid feed, filtrate discharge, and retentate discharge connections pass through the cylindrical lower part, wherein the retentate discharge connection is horizontal and has an outlet on a side of the upper part, wherein the pressure pipe and the membrane have provided thereinbetween an open annular space and wherein the pressure pipe has a bottom, wherein the fluid feed duct terminates in a surrounding annular gap in the cylindrical lower part, the surrounding annular gap comprising an annular groove cut into an outer surface of the cylindrical lower part and extending inwardly from the edge of the outer surface of the cylindrical lower part and extending from the fluid feed duct to the edge of the outer surface of the cylindrical lower part, the annular groove being horizontal and perpendicular to the fluid feed duct, wherein the fluid flows from the fluid feed duct though the surrounding annular gap and into the annular space, and wherein the retentate flow duct comprises an annular duct exiting the membrane, the annular duct connected to a single vertical duct perpendicular to and in communication with the horizontal retentate discharge connection.