Membrane module for a membrane separation system, its use and process for producing the same
AssigneeBucher-Guyer AG
InventorEduard Hartmann
Life of this patent
Estimating the term…
Abstract
The membrane module includes tube membranes (6), which are arranged in the membrane module in coiled, curved form (8). As a result, a greater total membrane surface area per unit of volume, simplified assembly, and processing of material mixtures with a high solid proportion are all attained. The modules are arranged to facilitate cross flow filtration over membrane surfaces disposed between a supply conduit manifold and a discharge conduit manifold. Optionally, the coils are aligned in parallel and are in coaxial relation to each other.
Claims74
Membrane module of an installation for cross flow filtration of a mixture containing liquid material by flowing said mixture over membrane surfaces disposed between supply conduit means and discharge conduit means comprising a plurality of tube membranes adapted for connection between said supply conduit means and said discharge conduit means and having internal flow passages of substantially equal inside diameters measuring at least a plurality of millimeters for receiving a flow in parallel therethrough of streams of said mixture, each of said plurality of tube membranes being curved along its length to form a coil and said coils being disposed in coaxial relation to each other.
Membrane module of an installation for membrane separation of a mixture of materials comprising a plurality of tube membranes having inside diameters measuring at least a plurality of millimeters for receiving a flow therethrough of a mixture of materials to be separated, said plurality of tube membranes (6) being twisted together in a bundle of ropelike configuration, and said twisted bundle being curved along its length to form a coil and terminating at one end of the coil in a first collection tube for conveying the material mixture to be separated into all of said membrane tubes in parallel and terminating at the opposite end of the coil in a second collection tube for discharging in parallel the material mixture exiting from all of said membrane tubes.
Membrane module of an installation for membrane separation of a mixture of materials comprising a plurality of tube membranes having inside diameters measuring at least a plurality of millimeters for receiving a flow therethrough of a mixture of materials to be separated, each of said plurality of tube membranes being a single continuous tube membrane wound into a coiled body which comprises, axially to the winding axis, only two layers in the form of a disklike flat winding.
Membrane module of an installation for membrane separation of a mixture of materials comprising a plurality of tube membranes having inside diameters measuring at least a plurality of millimeters for receiving a flow therethrough of a mixture of materials to be separated, each of said plurality of tube membranes being curved along its length to form a coil and terminating at the beginning and at the end of the coil in a single joint collecting tube for parallel conveyance and discharge of the material mixture to be separated, and wherein a closed tank having a housing wall is provided for enclosing the coiled tube membranes and for receiving a separated material, the collecting tubes for the material mixture to be separated, as well as at least one pipe duct for a separated material are passed outside through said housing wall of the tank, and the opening for the separated-off material is disposed at the bottom in the wall of the tank, and level sensors for the separated-off material are mounted at various heights along the tank.
Membrane module of an installation for membrane separation of a mixture of materials comprising a plurality of tube membranes having inside diameters measuring at least a plurality of millimeters for receiving a flow therethrough of a mixture of materials to be separated, each of said plurality of tube membranes being curved along its length to form a coil and terminating at the beginning and at the end of the coil in a single joint collecting tube for parallel conveyance and discharge of the material mixture to be separated, and wherein the tube membranes are coiled in the form of at least one bundle (7) of a plurality of tube membranes (6) in the membrane module, and that the bundle comprises at least two portions (7, 7′), which by connecting means communicate in a manner sealed off tightly from the outside of the bundle and with an interstice (141), the interstice being embodied as a mixing chamber (141) for the material mixtures in the tube membranes (6) of the two portions (7, 7′).
Membrane module of an installation for membrane separation of a mixture of materials comprising a plurality of tube membranes having inside diameters measuring at least a plurality of millimeters for receiving a flow therethrough of a mixture of materials to be separated;
- wherein the tube membranes (6) are disposed in a coil in the membrane module, each of a plurality of tube membranes (6) terminates at the beginning and at the end of the coil in a single common collecting tube (4″, 5″) for parallel conveyance and discharge of the material mixture to be separated, and wherein a closed vessel (40) having a housing wall is provided for enclosing the coiled tube membranes (6) and for receiving a separated material, the collecting tubes (4″, 5″) for the material mixture to be separated, as well as at least one pipe duct (11″) for a separated material are passed outside through said housing wall of the vessel;
- and wherein the tube membranes (6) can be back-flushed, and means are provided by which the closed vessel (40) for the separated-off material can intermittently be placed at overpressure.
A disc-like tube membrane module for use in a cross flow filtration apparatus in which a mixture to be filtered is flowed over membrane surfaces, said tube membrane module comprising
- at least one membrane tubing unit providing an elongated internal passage extending therethrough for receiving the flow of the mixture to be filtered, said membrane tubing unit having first and second end portions and a central portion extending between said end portions,
- said central portion being wound into a disc comprising a plurality of side-by-side coaxial planar coils extending radially with respect to the winding axis of the coils,
- said first end portion of said membrane tubing unit extending from the outer periphery of one of said coils for connection to means for supplying the flow of said mixture to said internal passage, and
- said second end portion of said membrane tubing unit extending from the outer periphery of another of said coils for connection to means for receiving the flow of the mixture from the opposite end of said internal passage.
A cross flow filtration module for filtration apparatus in which a mixture to be separated is flowed over membrane surfaces, said cross flow filtration module comprising
- a container;
- a supply manifold positioned at least partly within said container to supply the flow of said mixture;
- a plurality of disc-like tube membrane units positioned within said container for separating permeate from said mixture;
- each of said tube membrane units including at least one tube membrane having a first end portion, a second end portion, and a central portion wound into a disc comprising a plurality of coaxial planar coils with said first end portion extending peripherally from one of said coils and said second end portion extending peripherally from another of said coils;
- a discharge manifold positioned at least partly within said container to discharge the flow of said mixture after the separation of permeate therefrom;
- an opening in said container through which permeate discharges from said container;
- and
- said first end portion of each of said tube membrane units being coupled to said supply manifold and said second end portion of each of said tube membrane units being coupled to said discharge manifold.
Dependencies are inferred from the claim text.