WO2003055579A2 - Dispositif et procede de filtration - Google Patents

Dispositif et procede de filtration Download PDF

Info

Publication number
WO2003055579A2
WO2003055579A2 PCT/DE2002/004728 DE0204728W WO03055579A2 WO 2003055579 A2 WO2003055579 A2 WO 2003055579A2 DE 0204728 W DE0204728 W DE 0204728W WO 03055579 A2 WO03055579 A2 WO 03055579A2
Authority
WO
WIPO (PCT)
Prior art keywords
connection
distributor plate
plate
filtration device
retentate
Prior art date
Application number
PCT/DE2002/004728
Other languages
German (de)
English (en)
Other versions
WO2003055579A3 (fr
Inventor
Frank Glabiszewki
Original Assignee
Quattroflow Fluid Systems 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 Quattroflow Fluid Systems Gmbh filed Critical Quattroflow Fluid Systems Gmbh
Priority to EP02795037A priority Critical patent/EP1458464A2/fr
Publication of WO2003055579A2 publication Critical patent/WO2003055579A2/fr
Publication of WO2003055579A3 publication Critical patent/WO2003055579A3/fr

Links

Classifications

    • 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
    • B01D63/084—Flat membrane modules comprising a stack of flat membranes at least one flow duct intersecting the membranes

Definitions

  • the invention relates to a filtration device, in particular for large-format membrane cassettes, which can be arranged on one side of a distributor plate, which has a feed connection for a medium to be filtered, a retentate connection for a retentate to be removed and at least one filtrate connection for a filtrate to be removed, with a holder and one Clamping plate.
  • the invention further relates to a filtration method for the filtration of a feed liquid, in particular with large-format membrane cassettes, which are arranged between a clamping plate and a vertical plate with a line channel for the feed liquid and a line channel for a retentate.
  • Filtration devices in particular for large-format membrane cassettes (for example 50 x 30 cm), are used in ultrafiltration and in the microfiltration of liquids.
  • Large-format membrane cassettes are usually adjacent to a distributor plate and clamped or compressed between two clamping plates with the aid of a holder.
  • the distributor plate and the clamping plates are made of metal or steel.
  • the distributor plate has connections for the medium to be filtered and connections for the filtrate or permeate and, for ultrafiltration, connections for the retentate or concentrate.
  • the distributor plate has in its Inner channels that are connected to the connections.
  • a filtration device is known, for example, as Maxisette 25 from Pall Filtron.
  • the disadvantage here is that the distributor plate, in particular because of the intersecting channels, must have a relatively large thickness in its interior, which leads to a relatively large volume with a corresponding weight.
  • the object of the present invention is therefore to improve the known filtration devices in such a way that their distributor plates have a smaller volume and thus a lower weight, can be manufactured more cost-effectively and are also easier to handle.
  • the distributor plate is designed as a flat plate, on the underside of which, facing away from the membrane cassettes, the filtrate connection is connected to the distributor plate via a connection body, that the connection body has a conduit, and that the connecting body is connected to line bores of the distributor plate which are arranged transversely to the distributor plate and correspond to line openings of the membrane cassettes.
  • the filtration device has only one clamping plate in addition to the distributor plate saves the weight of a second clamping plate.
  • the distributor plate has a filtrate connection on its underside has, which is connected to the distributor plate via a connection body, the connection body having a conduit, the distributor plate only has to have transversely arranged line bores for connection to corresponding line openings of the membrane cassettes.
  • the line channel for the filtrate can be mounted under the distributor plate in such a way that crossing channels can be avoided. This reduces the thickness of the distributor plate by at least the diameter or the height of the filtrate channel.
  • the feed connection and the retentate connection are connected to the distribution plate via connection bodies on the underside of the distribution divider plate.
  • the connection bodies likewise have a line channel, which is in each case connected to line bores of the distributor plate which are arranged transversely to the distributor plate and which correspond to line openings in the membrane cassettes.
  • the distributor plate can expediently have two connection bodies on their underside, each with a filtrate connection.
  • the connection bodies can each be arranged adjacent to the end face of the distributor plate.
  • connection bodies serve at the same time as a kind of stiffening or reinforcement of the distributor plate.
  • the distributor plate has a line channel on its opposite longitudinal sides, one being designed as a feed distributor and one as a retentate collector.
  • the line channels are connected to the corresponding line openings of the membrane cassettes via line bores arranged transversely to the distributor plate.
  • the line channels each have a connection.
  • the conduit for the feed liquid and the conduit for the retentate can each have a smaller diameter or can be dimensioned with a smaller cross-sectional area, so that the distributor plate can be made thinner and thus lighter.
  • a better pressure distribution can also be achieved through the connections arranged at opposite ends. At the same time, a higher filtrate output is possible.
  • the holder has a plurality of connecting rods, via which the distributor plate can be connected to the clamping plate in such a way that the membrane cassettes can be clamped between the distributor plate and the clamping plate.
  • the clamping plate has at least one reinforcement transversely to its longitudinal direction, which can be pressed against the clamping plate with two opposite connecting rods.
  • the clamping plate can also be made relatively thin-walled and therefore low in volume and weight.
  • the reinforcements are arranged transversely to the longitudinal direction of the clamping plate. However, it is also possible to arrange the reinforcements in the longitudinal direction or diagonally, for example as a kind of diagonal cross. Separating the reinforcement from the clamping plate has the advantage of simple, inexpensive production. However, it is also possible to firmly connect or form the reinforcement to the clamping plate.
  • connection body connected to the feed connection is designed as a feed distributor or feed distributor.
  • the one with the connector body connected to the retentate connector is designed as a retentate collector.
  • the connection bodies connected to the filtrate connections are designed as filtrate collectors.
  • connection bodies as distributors or collectors
  • the entire distribution system and connections can be attached to the distributor plate simply and inexpensively.
  • the filtrate collectors are adjacent to the mutually opposite end faces of the distributor plate.
  • the retentate collector and the feed distributor are adjacent to the opposite long sides of the distributor plate.
  • the connection bodies also act as a kind of stiffening or reinforcement frame.
  • Another object of the invention is therefore to provide a method in which easier handling is achieved.
  • the conduit channels can be realized with a smaller cross-section, so that the plates can be designed with a lower weight, so that their handling is simplified.
  • a directional overflow of the membrane cassettes takes place with the aid of valves connected upstream of the connections. All the valves are preferably opened in the filtering process and only one feed valve and one retentate valve are opened for cleaning or in the cleaning process, at least at intervals. If diagonally opposite valves are opened, a corresponding diagonal overflow can be achieved. This leads to better cleaning results, since dead spaces can be practically avoided by changing flow directions during the cleaning process. In addition, an increased filtrate output can be achieved through the directed overflow.
  • FIG. 1 a top view of a filtration device without reinforcement
  • Figure 2 is a side view of the filtration device of Figure 1 along the line II - II cut with
  • FIG. 3 shows a side view of the filtration device of FIG. 1 along the line III-III cut with reinforcement
  • FIG. 4 a top view of a further filtration device (without reinforcement), 5 shows a side view of the filtration device of FIG. 4 along the line V-V with a reinforced clamping plate and
  • Figure 2 is a side view of the filtration device of Figure 4 cut along the line VI - VI.
  • a filtration device essentially consists of a distributor plate 1, 1 ', membrane cassettes 2, a clamping plate 3, 3' and a holder 4.
  • the bracket 4 consists of twelve connecting rods 5, via which the distributor plate 1 is connected to the clamping plate 3.
  • the distributor plate 1 is connected to the clamping plate 3.
  • four membrane cassettes 2 are arranged between the distributor plate 1 and the clamping plate 3, the clamping plate 3 being pressed against the membrane cassettes 2 and the distributor plate 1 via the connecting rods 5.
  • the distributor plate 1 has, transversely to its longitudinal axis 6, a first end face 7 and an opposite second end face 8, each adjacent to a row of seven line bores 9, which correspond to corresponding line openings in the membrane cassettes 2.
  • the filtrate 36 or permeate filtered by the membrane cassettes 2 is discharged via the line bores 9.
  • Adjacent to a longitudinal surface 10, the distributor plate 1 has a row of fifteen line bores 11 for supplying the medium 12 to be filtered.
  • the line bores 11 correspond to corresponding line openings of the membrane cassettes 2.
  • the distributor plate 1 On the second longitudinal surface 13 adjacent to the first longitudinal surface 10, the distributor plate 1 has a row of fifteen line bores 14 which correspond to corresponding line openings of the membrane cassettes 2.
  • the concentrate or retentate 15 is discharged via the line bores 14.
  • connection bodies 17 are designed as a filtrate collector 19, which has a connection 20 at its lowest point, which is designed as a filtrate connection.
  • the feed distributor has a connection 23 which is designed as a feed connection. While the line bores 11 assigned to the first longitudinal surface 10 open into the line channel 24 of the feed distributor 22, the line bores 14 adjacent to the second longitudinal surface 13 end in the line channel 25 of a connection body 26, which is designed as a pension collector 27.
  • the retentate collector 27 accordingly has a connection 28 which is designed as a retentate connection.
  • the connecting bodies 17, 21, 26 are screwed to the underside 16 of the distributor plate 1 with the aid of screws 29.
  • the connecting rods 5 to be assigned to the longitudinal surfaces 10, 13 are designed as fixed connecting rods 30 and are screwed firmly to the distributor plate 1 with their lower ends 31 facing the distributor plate 1.
  • the holder 4 consists of eight connecting rods 5, via which the distributor plate 1 'is connected to the clamping plate 3'.
  • the line bores 9 adjacent to the end faces 7', 8 ' are each covered by the connection bodies 17', as in the first example (FIGS. 1 to 3), so that they open into the line channel 18 ', which is also designed here as a filtrate collector 19 '.
  • the filtrate connection 20 ' is arranged at the lowest point of the connection body 17' in the region of its end assigned to the longitudinal surface 10 ', 13'.
  • the distributor plate 1 ' has on its opposite longitudinal sides 38, 39 in each case a line channel 24', which is designed as a feed distributor 22 ', and a line channel 25', which is designed as a retentate collector 27 '.
  • the distributor plate 1 ' also has transversely arranged line bores 11', 14 'which connect the respective line channel 24' 25 'to corresponding line openings in the membrane cassettes 2.
  • the line channels 24 ', 25' each have a connection 23 ', 23''on the opposite end faces 7', 8 'of the distributor plate 1' as a feed connection and a connection 28 ', 28''as a retentate connection.
  • the membrane cassettes 2 to be arranged are stacked on the upper side 32 of the distributor plate 1 facing away from the underside 16 and arranged so that their line openings (not shown) correspond to the line bores 9, 11, 14. Then the clamping plate 3 is placed over the fixed connecting rods 30.
  • a reinforcement 37 is placed over each of two fixed connecting rods 30 lying opposite one another and over nuts 33 which rest on the upper ends 34 of the fixed connecting rods 30 be screwed on, pressed or tensioned in the direction of the distributor plate 1. This is followed by further tensioning via loose connecting rods 35 which are inserted through corresponding openings in the distributor plate 1 and clamping plate 3 and are screwed tight with nuts 33.

Landscapes

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

Abstract

Dispositif de filtration, en particulier pour des cassettes à membrane de grand format destinées à être disposées sur une face d'une plaque de répartition qui comporte un raccord d'alimentation pour un milieu à filtrer, un raccord de rétentat pour du rétentat à évacuer et au moins un raccord de filtrat pour un filtrat à évacuer. Ledit dispositif comporte également un moyen de retenue et une plaque de serrage. Selon la présente invention, la plaque de répartition est conçue sous forme de plaque plane à la face inférieure, éloignée des cassettes à membrane, de laquelle le raccord de filtration est raccordé par l'intermédiaire d'un corps de raccordement. Le corps de raccordement, qui possède une conduite, est relié à des trous de conduite ménagés dans la plaque de répartition, transversalement par rapport à cette dernière, lesdits trous de conduite correspondant à des orifices de conduite des cassettes à membrane. La présente invention concerne également des procédés de filtration, en particulier à l'aide de cassettes à membrane de grand format qui sont placées entre une plaque de serrage et une plaque verticale pourvue d'une conduite pour le liquide d'alimentation et d'une conduite pour du rétentat. Le liquide d'alimentation est introduit dans la conduite à partir de ses extrémités opposées via deux raccords et le rétentat est évacué via deux raccords opposés de la conduite.
PCT/DE2002/004728 2001-12-27 2002-12-27 Dispositif et procede de filtration WO2003055579A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02795037A EP1458464A2 (fr) 2001-12-27 2002-12-27 Dispositif et procede de filtration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20120838.5 2001-12-27
DE20120838U DE20120838U1 (de) 2001-12-27 2001-12-27 Filtrationsvorrichtung

Publications (2)

Publication Number Publication Date
WO2003055579A2 true WO2003055579A2 (fr) 2003-07-10
WO2003055579A3 WO2003055579A3 (fr) 2004-06-24

Family

ID=7965573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/004728 WO2003055579A2 (fr) 2001-12-27 2002-12-27 Dispositif et procede de filtration

Country Status (3)

Country Link
EP (1) EP1458464A2 (fr)
DE (1) DE20120838U1 (fr)
WO (1) WO2003055579A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918999B2 (en) 2006-12-11 2011-04-05 Pall Corporation Filtration assemblies, filtration manifolds, filtration units, and methods of channeling permeate
US7976705B2 (en) 2006-12-11 2011-07-12 Pall Corporation Filtration assemblies and methods of installing filtration units in filtration assemblies

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062771A (en) * 1975-06-11 1977-12-13 Hoechst Aktiengesellschaft Apparatus and process for membrane filtration
EP0196392A2 (fr) * 1985-03-29 1986-10-08 James E. Wills Tamis de séparation à plusieurs couches pour un filtre-presse de membrane
US4715955A (en) * 1986-12-22 1987-12-29 Filtron Technology Corp. Ultrafiltration apparatus
US5034124A (en) * 1988-08-22 1991-07-23 Kopf Henry B Filter plate, filter plate element, and filter comprising same
US5599447A (en) * 1995-06-06 1997-02-04 Millipore Investment Holdings Limited Manifold apparatus for tangential flow filtration apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062771A (en) * 1975-06-11 1977-12-13 Hoechst Aktiengesellschaft Apparatus and process for membrane filtration
EP0196392A2 (fr) * 1985-03-29 1986-10-08 James E. Wills Tamis de séparation à plusieurs couches pour un filtre-presse de membrane
US4715955A (en) * 1986-12-22 1987-12-29 Filtron Technology Corp. Ultrafiltration apparatus
US5034124A (en) * 1988-08-22 1991-07-23 Kopf Henry B Filter plate, filter plate element, and filter comprising same
US5599447A (en) * 1995-06-06 1997-02-04 Millipore Investment Holdings Limited Manifold apparatus for tangential flow filtration apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918999B2 (en) 2006-12-11 2011-04-05 Pall Corporation Filtration assemblies, filtration manifolds, filtration units, and methods of channeling permeate
US7976705B2 (en) 2006-12-11 2011-07-12 Pall Corporation Filtration assemblies and methods of installing filtration units in filtration assemblies

Also Published As

Publication number Publication date
WO2003055579A3 (fr) 2004-06-24
EP1458464A2 (fr) 2004-09-22
DE20120838U1 (de) 2002-03-28

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