WO2013021026A1 - Dispositif de filtre à boîtier quadrangulaire - Google Patents

Dispositif de filtre à boîtier quadrangulaire Download PDF

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Publication number
WO2013021026A1
WO2013021026A1 PCT/EP2012/065573 EP2012065573W WO2013021026A1 WO 2013021026 A1 WO2013021026 A1 WO 2013021026A1 EP 2012065573 W EP2012065573 W EP 2012065573W WO 2013021026 A1 WO2013021026 A1 WO 2013021026A1
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WO
WIPO (PCT)
Prior art keywords
membrane
housing
filter device
filter
elements
Prior art date
Application number
PCT/EP2012/065573
Other languages
German (de)
English (en)
Inventor
Christian Goebbert
Manfred Volz
Steven Kloos
Joseph Edward Zuback
Original Assignee
Ksm Water Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ksm Water Gmbh filed Critical Ksm Water Gmbh
Publication of WO2013021026A1 publication Critical patent/WO2013021026A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B01D63/066—Tubular membrane modules with a porous block having membrane coated passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/08—Flat membrane modules
    • B01D63/082—Flat membrane modules comprising a stack of flat membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B01D2313/205—Specific housing characterised by the shape

Definitions

  • the invention relates to a filter device for the filtration of water according to the preamble of claim 1.
  • the membrane filter elements of such a filter device usually comprise a porous material, for example ceramic.
  • Such a module is known in the art and operates, for example, as follows:
  • each channel the medium to be filtered is introduced, the so-called unfiltered.
  • the wall surface of the channel cleaned the unfiltered and occurs as a filtrate from the wall surface in a collecting space between the membrane filter elements and the housing.
  • the wall surface is covered with a wafer-thin filter membrane, which has the actual filtering effect. From the plenum, the filtrate is discharged.
  • permeation The process of filtering in a penetration of the unfiltered through a porous solid is called permeation, the filtrate is the so-called. Permeate.
  • Unfiltered unfiltered material exits the other end of the channels and, if appropriate, is returned to the first-mentioned end of the channel, thus forming a circuit.
  • membrane filter elements In the field of water filtration, especially two types of membrane filter elements are known.
  • circular membrane filter elements in cross-section which are referred to as tube membranes, usually have a cylindrical shape and in the longitudinal direction of a plurality of channels is present. In these, the liquid medium is usually filtered from the inside out.
  • the filter membrane is applied inside the channels.
  • rectangular membrane filter elements are known in cross-section, which are referred to as flat membranes. Again, these are generally elongated with a plurality of channels extending in their longitudinal direction, which are generally filtered from outside to inside.
  • the filter membrane is mounted on the outside of the channels.
  • the flat membrane, or membrane filter elements which work from the outside inward are known to be immersed in the unfiltrate during operation.
  • the unfiltered material can be stored in a separate container and passed through the tube membranes.
  • Membrane filter elements in particular with a tube membrane, are often arranged in a round housing. This means that round filter elements in the housings can not be optimally packed.
  • the object of the invention is to obtain as much filtration area as possible in the smallest possible space while reducing costs. This applies both to the filter device per se, as well as for an entire filtration plant construction.
  • the membrane filter elements are - regardless of the nature of the membrane filter element (tube membrane or flat membrane) - uniform, operated in the same way.
  • Square housing devices can be packed much more densely than round housing devices.
  • a quadrangular device thus has, in contrast to a round module, a higher filtration area, so that a throughput through the filter device becomes larger.
  • the quadrangular shape of the housing can be rectangular, square but also trapezoidal or parallelogram-shaped. Particularly preferred is a rather flat, quadrangular shape of the housing, wherein only a few membrane filter elements are arranged parallel to each other in the housing. This increases the effectiveness of the filter device.
  • the unfiltered material is basically conducted into the channels of the membrane filter elements, so that the permeate forms outside the membrane filter elements in the quadrangular housing of the filter device.
  • the direction of filtration is therefore basically directed from the inside to the outside.
  • the filter device regardless of whether pipe membranes or flat membranes are used, are operated in the same way.
  • an inlet pipe flanged to the filter device, in which unfiltered material is conveyed to the filter device can always be connected in a similar manner to the filter device and that the permeate discharges are likewise permanently assigned.
  • This allows a modular and standardized design of a complete filtration system with a small footprint and a uniform operation of the membrane filter elements.
  • tubular membrane elements in the use of tubular membrane elements is provided that a plurality of tube membrane elements are arranged at a small distance from each other, so almost touch each other with its circumference, leaving a small distance between the outer surfaces of the tube membranes.
  • This is especially necessary because the tube membranes are never quite straight and a contacting arrangement would only be possible under high voltages.
  • attention must be paid to a gap between the individual membrane filter elements and the housing. This development has the advantage that a vom Hughes bins of flat membrane elements is much better than tubular membrane elements.
  • the filter device in the housing comprises a plurality of side by side and / or stacked flat membrane elements.
  • the individual flat membrane elements thus form interchangeable modules, for example, at the place of use, whereby the maintenance costs are reduced and the field availability is improved.
  • the individual flat membrane elements can be relatively small, which simplifies their manufacturability, and yet an overall large and powerful filter device can be created.
  • Particularly preferred is a symmetrical structure with 2x2, 3x3, 4x4, etc. flat membrane elements.
  • a plurality of membrane filter elements can form a bundle or a group, which is encapsulated at both end regions of the membrane filter elements by an initially liquid, for example meltable, and then curable material ("casting material") and sealingly connected to the housing.
  • the casting material applied to the two end regions of the membrane filter elements comprises a plastic, preferably a polymer, in particular a thermoplastic. Also thermosets or two-component plastics such as epoxies or acrylates are possible. The plastic thus blocks the spaces between the membrane filter elements.
  • the plastics mentioned work reliably, can be processed easily and are inexpensive.
  • a seal between the bundle or the group and the housing is rectangular, conical or L-shaped.
  • the seals provide a reliable, at least liquid-tight seal between the bundle or the group and the housing. It can also compensate for different temperatures during operation, which could otherwise lead to expansion and contraction of components and could destroy the device.
  • the housing in one embodiment, it is possible for the housing to each have an outlet opening for the permeate on opposite sides, and for the outlet openings to be connected to each other by two filter devices.
  • the corresponding outlet openings may preferably be positioned at each filter device at the same location, which supports a modular design of the entire filtration system. It is particularly favorable if the two outlet openings of a housing are designed to be complementary to one another, for example "male / female", so that a simple coupling is possible.
  • Figure 1 shows a quadrangular housing of a flat membrane equipped with filter device according to the invention in a plan view
  • Figure 2 shows the filter device of Figure 1 in a sectional side view
  • FIG. 3 shows a quadrangular housing of a filter device equipped with tubular membranes according to the invention in a plan view
  • Figure 4 shows the filter device of Figure 3 in a sectional side view
  • Figure 5 is an exploded view of an end portion of the filter device of Figures 1 and 2 with an adapter for transferring a round tube shape to the quadrangular filter device;
  • FIG. 6 shows a filtration system with two filter devices according to FIGS. 1 and 2 connected together in a first manner
  • FIG. 7 shows a filtration system with two filter devices connected in a second manner according to FIGS. 1 and 2;
  • FIG. 8 shows a representation similar to FIG. 1 of a further alternative filter device
  • FIG. 9 shows a representation similar to FIG. 1 of a further alternative filter device
  • Figure 10 is a view similar to Figure 2 of the filter device of Figure 9;
  • FIG. 11 shows a representation similar to FIG. 9 of a further alternative filter device.
  • FIGS 1 and 2 show a filter device 10 in a first embodiment, wherein in an elongated housing 12 with a quadrangular cross-section a plurality of membrane filter elements in the form of rectangular flat membrane elements 14 are arranged parallel to each other.
  • the cross section of the housing 12 may also be square, trapezoidal or parallelogram in embodiments not shown.
  • a flat membrane element is designated by reference numeral 14.
  • the flat membrane elements 14 are formed cuboid and consist of a porous material, such as ceramic.
  • the 9 membrane elements 14 are fixed to one another at the two end regions with a casting material made of plastic, preferably a polymer, initially applied there in the liquid state and then hardened, which forms a rectangular outer contour connecting section, whereby the interior of the filter device 10 relative to the outer region or the housing 12 is sealed. This is indicated in Figure 2 for the upper end region there by a hatching with the reference numeral 36.
  • the flat membrane elements 14 have a plurality of small channels in the interior, which extend in the longitudinal direction of the flat membrane elements 14.
  • the channels are merely indicated in FIG. 1 and are not provided with reference numerals.
  • On the inside of the channels a filter membrane is applied in each case.
  • the individual flat membrane elements 14 are spaced apart by a gap 16. Between the outside in the housing 12 arranged flat membrane elements 14 and a wall of the housing 12, the filter device 10 also has a gap 16.
  • the filter device 10 operates in the first embodiment as follows:
  • a liquid to be filtered (unfiltrate), preferably contaminated water, is passed via a nozzle explained below at a front end of the housing 12 in its inner and in each case on an end face of the flat membrane elements 14 (see arrow 22), after which the unfiltrate channels the channels Flat membrane elements 14 flows through. This can also happen under pressure. A portion of the unfiltered material runs out at the opposite end face of the housing 12 of the filter device 10 again.
  • the unfiltered out of the channels and unfiltered outgoing unfiltrate can be fed to a further or the same filter device 10, where it can be filtered.
  • the further filter device can also be a filter device of another type.
  • the formed with a square cross-section housing 12 can be easily assembled in the course of a modular system with additional housing 12 to a powerful filtration system and has a large packing density, which is larger than comparable housing with a round cross-section. As a result, the throughput per volume element is increased in the filter device 10.
  • FIGS 3 and 4 show the filter device 10 in a second embodiment, wherein a plurality of tubular membrane elements 24 are arranged parallel to each other in a housing 12 having a quadrangular cross-section.
  • the tubular membrane elements 24 are those membrane filter elements which have a substantially cylindrical elongated body, which is traversed in its longitudinal direction by a plurality of parallel channels, which are open at the ends.
  • the individual tube membrane elements 24 preferably touch each other with their circumference, but still produce - due to the tube shape - gaps 16 in which the permeate can be collected and fed to the permeate 18. Otherwise, the filter device 10 operates in the second embodiment according to the first embodiment.
  • flat membrane elements 14 and tube membrane elements 24 can be combined in a filter device 10 as needed.
  • the filtration direction is basically from the inside to the outside.
  • FIG. 5 shows the possibility of connecting a nonfiltrate-carrying tube or hose to the filter device 10.
  • an adapter 26 is provided which transfers a transition of an unfiltrate-carrying element with a round cross section (tube or hose) to the quadrangular cross section of the filter device 10.
  • the adapter 26 is screwed onto the end face of the filter device 10, wherein the holes 20 are used in the flange of the filter device 10.
  • the adapter 26 can be used for all embodiments of the filter device 10.
  • FIGS. 6 and 7 show a filtration system 28 consisting of two filter devices 10 according to the invention, in each of which a permeate outlet 18 of a first filter device 10 is connected to a permeate outlet 18 of a second filter device 10.
  • a permeate outlet 18 of a first filter device 10 is connected to a permeate outlet 18 of a second filter device 10.
  • All embodiments of the filter device 10 can be used individually or else mixed in the filtration system 28. Shown here is the use of flat membrane elements 14 according to FIGS. 1 and 2.
  • a connection point 30 of the permeate outputs 18 is sealed in FIG. 6, for example, with an O-ring 32.
  • the permeate 18 are screwed together at the junction 30 with each other by sleeves and an intermediate piece, which is alternatively possible.
  • FIG. 8 shows a further alternative embodiment of a filter device 10.
  • a multiplicity of identical flat membrane elements 14 are arranged inside the rectangular housing 12, namely 3 "pillars” next to each other with 10 flat membrane elements 14 arranged one above the other the filter device 10 contains a total of 30 flat membrane elements 14.
  • the filter device can be used in operation but also rotated by 90 °, ie with 10 "columns", each with 3 flat-mounted flat membrane elements 14th
  • the 30 flat membrane elements 14 may be cast in total or in each case individually at their respective ends with a hardening casting material, which then forms a rectangular outer contour having connecting portion. If they are encapsulated overall, a seal is required only at the outer edge of the connection portion relative to the housing 12. If they are individually encapsulated, the individually formed connection sections must each be sealed against each other, but instead the individual flat membrane elements 14 can be easily exchanged.
  • housing 12 shown in FIG. 8 also has inlet and outlet openings in the form of, for example, lateral sockets, which, however, are not shown in FIG. 8 for reasons of illustration.
  • FIGS. 9 and 10 A further alternative embodiment of a filter device 10 is shown in FIGS. 9 and 10.
  • 9 flat membrane elements 14 are combined to form a group 34, wherein in FIGS. 9 and 10 only one group is provided with a reference numeral 34 for reasons of clarity .
  • groups are used with different amounts of flat membranes within a filter device. It is even possible to combine 10 groups with flat membranes with groups with tubular membranes within a filter device.
  • Each group 34 is encapsulated at its two axial end portions in the manner described above several times with casting material which forms a rectangular connection portion 36 after curing, which is sealingly connected to the housing 12 and / or the connecting portions 36 of the adjacent groups 34 (For reasons of clarity, only one connection section is shown in FIGS. 9 and 10 and provided with a reference numeral). In this way, extremely powerful filtering devices 10 can be created, which nevertheless have a modular construction and therefore can be manufactured inexpensively and easily maintained.
  • the filter device 10 shown in FIG. 11 is quite similar to that of FIGS. 9 and 10. However, it does not use flat membrane elements but tube membrane elements 24 similar to those of FIGS. 3 and 4, with 36 tube membrane elements 24 being combined to form a group 36 by way of example.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne un dispositif de filtre (10) pour filtrer de l'eau. Le dispositif de filtre (10) comporte un boîtier (12) et plusieurs éléments de filtre à membrane (14; 24) disposés parallèlement entre eux dans le boîtier (12), chaque élément de filtre à membrane (14; 24) présentant une pluralité de canaux qui s'étendent dans la direction longitudinale de l'élément de filtre à membrane (14; 24) et sur la face intérieure desquels une membrane filtrante est appliquée de sorte qu'un perméat est à disposition à l'extérieur de l'élément de filtre à membrane (14; 24). Le boîtier (12) présente une section transversale quadrangulaire.
PCT/EP2012/065573 2011-08-10 2012-08-09 Dispositif de filtre à boîtier quadrangulaire WO2013021026A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080764A DE102011080764A1 (de) 2011-08-10 2011-08-10 Filtereinrichtung
DE102011080764.0 2011-08-10

Publications (1)

Publication Number Publication Date
WO2013021026A1 true WO2013021026A1 (fr) 2013-02-14

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956449A (en) * 1975-03-18 1976-05-11 Melvin Wexler Flat plate dialyzer and method of making same
JPS5982906A (ja) * 1982-11-01 1984-05-14 Daicel Chem Ind Ltd シ−ト状膜分離素子及び膜分離モジユ−ル
DE8705679U1 (de) * 1986-04-22 1987-06-19 Bernard, Michel, Montigny le Bretonneux Ebenes Filterelement mit einer Membran, die eine Filtrationslamellenzelle bildet, und Druckfilter mit Tangentialdurchfluß, das Stapel solcher Elemente umfaßt
EP0270051A2 (fr) * 1986-12-03 1988-06-08 Societe Des Ceramiques Techniques Procédé d'assemblage d'un module d'éléments séparateurs à support céramique et module obtenu par ce procédé
JPH1190192A (ja) * 1997-09-22 1999-04-06 Toray Ind Inc 中空テープ状膜及びその製造方法
US20040035786A1 (en) * 2002-08-21 2004-02-26 Goldsmith Robert L. Airlift membrane device and membrane bioreactor and bioreactor process containing same
US20050161389A1 (en) * 2002-09-27 2005-07-28 Mitsubishi Rayon Co., Ltd. Hollow fiber membrane module, hollow fiber membrane module unit, membrane filtration device using the same and method of operating the same
US20100252501A1 (en) * 2009-04-02 2010-10-07 Greene William A Quick connect modular water purification system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956449A (en) * 1975-03-18 1976-05-11 Melvin Wexler Flat plate dialyzer and method of making same
JPS5982906A (ja) * 1982-11-01 1984-05-14 Daicel Chem Ind Ltd シ−ト状膜分離素子及び膜分離モジユ−ル
DE8705679U1 (de) * 1986-04-22 1987-06-19 Bernard, Michel, Montigny le Bretonneux Ebenes Filterelement mit einer Membran, die eine Filtrationslamellenzelle bildet, und Druckfilter mit Tangentialdurchfluß, das Stapel solcher Elemente umfaßt
EP0270051A2 (fr) * 1986-12-03 1988-06-08 Societe Des Ceramiques Techniques Procédé d'assemblage d'un module d'éléments séparateurs à support céramique et module obtenu par ce procédé
JPH1190192A (ja) * 1997-09-22 1999-04-06 Toray Ind Inc 中空テープ状膜及びその製造方法
US20040035786A1 (en) * 2002-08-21 2004-02-26 Goldsmith Robert L. Airlift membrane device and membrane bioreactor and bioreactor process containing same
US20050161389A1 (en) * 2002-09-27 2005-07-28 Mitsubishi Rayon Co., Ltd. Hollow fiber membrane module, hollow fiber membrane module unit, membrane filtration device using the same and method of operating the same
US20100252501A1 (en) * 2009-04-02 2010-10-07 Greene William A Quick connect modular water purification system

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