WO2002040133A1 - Element de filtre - Google Patents

Element de filtre Download PDF

Info

Publication number
WO2002040133A1
WO2002040133A1 PCT/EP2001/012621 EP0112621W WO0240133A1 WO 2002040133 A1 WO2002040133 A1 WO 2002040133A1 EP 0112621 W EP0112621 W EP 0112621W WO 0240133 A1 WO0240133 A1 WO 0240133A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filter medium
folds
stabilizing
filter element
Prior art date
Application number
PCT/EP2001/012621
Other languages
German (de)
English (en)
Inventor
Markus Kolczyk
Gerhard SEIDER
Hans-Jörg Kaifel
Heiko Bock
Original Assignee
Filterwerk Mann+Hummel 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 Filterwerk Mann+Hummel Gmbh filed Critical Filterwerk Mann+Hummel Gmbh
Publication of WO2002040133A1 publication Critical patent/WO2002040133A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0013—Modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B01D46/60—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores

Definitions

  • the invention relates to a filter element according to the preamble of claim 1.
  • annular filter element which has a filter medium folded in a star shape.
  • the filter medium is supported on its inner circumference on a tubular support body provided with openings. So that the folds do not move and the filter element does not collapse at high differential pressures, an annular band is provided on the outer circumference of the filter element.
  • This ring band presses the folds against the support body, which prevents the folds from moving.
  • the ring band can consist of a material that shrinks under the influence of heat and thus stabilizes the folds.
  • a disadvantage of this embodiment is that the ring band can fall off at one point as a result of damage, as a result of which the support function is no longer provided. Furthermore, the ring band can constrict the filter medium when shrinking, as a result of which the filter medium kinks and the stability of the filter element is reduced.
  • the object of the invention is therefore to create a filter element which does not collapse even at high differential pressures and reliably supports the filter medium. This object is solved by the features of claim 1.
  • the filter element according to the invention is used to clean a fluid, in particular a liquid.
  • the filter element has a folded filter medium with two outer end faces, on which a filter limitation is arranged.
  • the filter medium is folded in a zigzag shape.
  • the outer end faces run essentially perpendicular to the folds, as a result of which the course of the folds can be recognized on the outer end faces.
  • the filter elements can also have a trapezoidal shape, with the diagonal the course of the folds can be seen in relation to the outer end faces of the folds.
  • the filter limitation is sealingly connected to the filter medium on the outer end faces, wherein the filter limitation can consist, for example, of a thermoplastic plastic such as polyethylene, an elastomer such as polyurethane or metal.
  • This filter limitation can be made in one part or in several parts and connected to the filter medium, for example, by its own material or by an adhesive.
  • the filter medium is formed by at least two adjoining filter medium parts, as a result of which the filter medium has at least two inner end faces.
  • the filter medium parts advantageously consist of the same filter material. At least both filter medium parts have the same filter fineness and filter the same impurities out of the fluid.
  • the course of the folds can be seen on the inner end faces. So that the filter element does not collapse even at high specific volume flows or differential pressures, a means for stabilizing the folds is provided.
  • This means for stabilizing the folds is sealingly connected to the filter medium parts on the inner end faces, which are arranged in a central region between the two outer end faces of the filter medium. As a result, the folds remain stabilized even if the means for stabilizing the folds is damaged at a single point.
  • the size of the individual filter medium parts must be selected.
  • a corresponding number of filter medium parts must be provided to achieve the required filter area.
  • the means for stabilizing the folds advantageously has a higher stability than the filter medium, as a result of which the folds can be optimally fixed.
  • the stabilizing means is disc-shaped, as a result of which as little filter area as possible is enclosed by the filter medium and the installation space for the filter element is not unnecessarily increased.
  • the disk-shaped means for stabilizing the folds is designed in such a way that it essentially corresponds to a surface projected from the inner end face or its outline.
  • the means for stabilizing the folds on the inner end faces is glued to the filter medium parts.
  • the adhesive on the one hand effects the connection between the means for stabilizing the folds and the filter medium parts and on the other hand the sealing, so that the raw side seals off the clean side is separated.
  • the means for stabilizing the folds can consist, for example, of metal and can be connected to the filter medium parts in a simple and inexpensive manner.
  • An expedient embodiment of the invention provides that the means for stabilizing the folds inextricably encloses at least one inner end face.
  • the means for stabilizing the folds can enclose the filter medium part in a positive or non-positive manner. By enclosing the inner end face, additional sealing components can be omitted.
  • the filter medium part can have openings in the area of the inner end face, through which the material of the agent for stabilizing the folds can pass and produce an inseparable connection after hardening.
  • a single means for stabilizing the folds is connected to the two adjacent filter medium parts on the inner end faces.
  • the two filter medium parts are fixed to one another, so that no leakage can occur due to a displacement of the two filter medium parts relative to one another.
  • the largest possible filter area can be realized in a given installation space.
  • a further embodiment of the invention provides that each filter medium part has its own means for stabilizing the folds on the inner end faces, the two means for stabilizing the folds being connected to one another in a sealing and non-detachable manner.
  • a filter element can be constructed in a modular manner, whereby corresponding standardized filter medium parts corresponding to the required size of the filter element can be assembled to the required size.
  • connection of the two means for stabilization to one another can take place mechanically, for example by rivets or snap connections, or chemically, for example by adhesive.
  • sealing elements such as sealing rings can be inserted between the two means for stabilizing the folds.
  • Another variant of the chemical bond is also conceivable, for example by dissolving a contact side with a solvent.
  • the means for stabilizing the wrinkles are pressed together on the contact side after they have been loosened.
  • the means for stabilizing the folds consists of a thermally softenable material, in particular nitrile rubber.
  • the filter element can be manufactured simply, quickly and inexpensively.
  • the thermally softenable material is placed, for example, between the filter medium parts and heated.
  • the material changes due to the supply of heat.
  • the surface melts, at least partially, and the end face of the filter medium part can sink into the melt. After cooling, the inner end face of the filter medium part is then sealed and inseparably enclosed by the means for stabilizing the folds.
  • the material can swell and harden due to the supply of heat, as a result of which the inner end face of the filter medium part is enclosed.
  • the material of the agent for stabilizing the wrinkles is processed into a thin film, for example 2 mm. Of course, the film can also be made thinner or thicker. The required sections are taken from this slide.
  • Rectangular strips are used for a flat element and circular or annular sections are used for a round filter element. This section is arranged on the inner end face of the filter medium part. The supply of heat causes the film to swell, as a result of which the material for stabilizing the folds encloses the filter medium part in the region of the inner end face.
  • the filter medium encloses a volume, in particular a cylindrical volume, in which the filter medium is closed in a ring.
  • This volume can e.g. also be a truncated cone or an elliptical cylinder.
  • the filter medium has a filter limitation on the two outer end faces and a single means for stabilizing the folds on the inner end faces between two filter medium parts, the means for stabilizing the folds essentially corresponding to a filter limitation.
  • the material for a second means of stabilizing the folds can thus be saved and the two filter medium parts are firmly connected to one another.
  • a filter for cleaning a fluid stream has a housing with an inlet and an outlet, a filter element of the described configuration being integrated in the housing.
  • FIG. 1 shows a filter element in a perspective view
  • FIG. 2 shows a filter element in a variant in a perspective view
  • FIG. 3 shows a filter element in a variant in a perspective view
  • Figure 4 is a flat filter element in perspective view
  • Figure 5 is a filter in section.
  • a filter element 10 is shown in perspective view with a cutout in the upper region of the filter element.
  • the filter element 10 has a filter medium 12 consisting of two filter medium parts 11.
  • the filter medium parts 11 have zigzag folds 13, the filter medium parts 11 being annular
  • Each filter medium part 11 has an outer end face 15 on the one hand and an inner end face 16 on the other hand.
  • a filter limitation 17 is arranged on the outer end face 15. This filter limitation 17 is made of plastic and is sealing with the respective filter medium part
  • a filter element 10 is shown in a variant in a perspective view. Components corresponding to FIG. 1 are provided with the same reference symbols.
  • the filter element 10 is formed by three filter medium parts 11.
  • the two filter medium parts 11 arranged on the outside have an outer end face 15 and an inner end face 16. Between these two filter medium parts 11 arranged on the outside, a middle filter medium part 11 is arranged, which has two inner end faces 16.
  • a single disc 14 is arranged between the inner end face 16 of the one outer filter medium part 11 and the inner end face 16 of the middle filter medium part 11, which connects the two filter medium parts 11 to one another and thus fixes and stabilizes the folds 13 in a stationary manner.
  • the other outer filter medium part 11 is connected to the middle filter medium part 11 in the same way.
  • each filter medium part 11 has on its inner end face
  • each filter medium part 11 with its filter limitation 17 and disc 14 is an independent module. Depending on the size of the filter element 10, two or more of these modules can be put together and form the filter element 10.
  • the two disks 14 are
  • FIG. 4 shows a flat filter element 18 in a perspective view.
  • the disk 14 between the filter medium parts 11 is of rectangular design, as a result of which the inner end faces 16 of the two adjacent filter medium parts 11 are sealed.
  • a single disk 14 can also be connected to a plurality of filter medium parts 11.
  • a filter for a liquid is shown in section in FIG. 5, the left and right half of the image showing different configurations. 30 components corresponding to FIG. 1 are provided with the same reference symbols.
  • the filter has a housing 19, which consists of a housing cover 20 and a housing pot 21.
  • the housing cover 20 is sealingly connected to the housing pot 21, the connection of the two housing parts 20, 21 to one another being a detachable connection.
  • the housing cover 20 has an inlet 22 and an outlet 23.
  • the inlet 22 is sealingly separated from the outlet 23 by the filter element 10.
  • the filter element 10 which has a circular cylindrical structure, is flowed through from the outside inwards.
  • the filter limitation 17 arranged in the upper region of the filter element 10 is designed in the form of a ring and lies sealingly against a connection piece 24. Sealing means (not shown) can also be provided for improved sealing.
  • the filter limiter 17 arranged in the bottom region of the housing base 21 is closed. As a result, no unfiltered liquid can reach the outlet 23.
  • a support body 25 is arranged in the interior of the filter element 10, on which the filter medium 12 can be supported, as a result of which the filter element 10 does not collapse even with larger differential pressures.
  • the filter limitation 17 arranged in the bottom region of the housing pot 21 is designed in a circular shape.
  • a plug 26 is provided so that no unfiltered liquid can reach the outlet 23.
  • This sealing plug 26 is supported on the one hand on the housing pot 21 and on the other hand it projects sealingly into the filter limitation 17.
  • a bypass valve (not shown) may also be arranged.

Abstract

Elément (10) de filtre destiné à purifier un flux de fluide, en particulier de liquide, qui ne s'affaisse pas, même en cas de pressions élevées. A cet effet, ledit élément de filtre comporte une matière de filtrage (12) composée de deux parties (11). Les parties (11) de la matière de filtrage sont pliées en zigzag et réunies de manière à former un anneau. Chaque partie (11) comporte une face externe (15) et une face interne (16). Un élément de délimitation (17) de filtre est placé sur la face externe (15) et un disque est placé sur la face interne (16). Le disque (14) situé sur la face interne (16) est raccordé de manière étanche aux parties (11) de la matière de filtrage, grâce à quoi les plis (13) sont fixés de manière sure.
PCT/EP2001/012621 2000-11-16 2001-10-31 Element de filtre WO2002040133A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057171 2000-11-16
DE10057171.9 2000-11-16

Publications (1)

Publication Number Publication Date
WO2002040133A1 true WO2002040133A1 (fr) 2002-05-23

Family

ID=7663732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/012621 WO2002040133A1 (fr) 2000-11-16 2001-10-31 Element de filtre

Country Status (2)

Country Link
DE (1) DE10153642B4 (fr)
WO (1) WO2002040133A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7096124B2 (en) 2001-12-14 2006-08-22 Optiscan Biomedical Corporation Method of determining an analyte concentration in a sample from an absorption spectrum
WO2008004848A1 (fr) * 2006-07-03 2008-01-10 Iman Abdelkabir Bougie filtrante
WO2012084753A1 (fr) 2010-12-23 2012-06-28 Mahle International Gmbh Élément de filtre à air

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015003755A1 (de) * 2015-03-25 2016-09-29 Mann + Hummel Gmbh Filterelement mit Rahmen und Filtersystem

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168204A1 (en) * 1972-01-20 1973-08-31 Herfilco Cartridge filter for fluid - with fabric sleeve inside grouped cylindrical pleated paper elements
US4559138A (en) * 1983-10-03 1985-12-17 Harmsco, Inc. End connected filter cartridges
DE9113019U1 (fr) * 1991-10-19 1993-02-11 Robert Bosch Gmbh, 7000 Stuttgart, De
US5306332A (en) * 1991-05-14 1994-04-26 Air-Gonomics, Inc. Columnar filtering unit for spray painting
EP0773054A1 (fr) * 1995-11-10 1997-05-14 KINGDRAGON S.p.A. Filtre à huile à longue durée de vie pour des moteurs à combustion interne
DE19624523A1 (de) * 1996-06-20 1998-01-02 Mann & Hummel Filter Filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465424B1 (fr) * 1990-07-05 1994-12-07 Filtrox-Werk AG Filtre à lit épais, procédé de fabrication d'une couche de filtration et module de filtration
DE4206519C2 (de) * 1992-03-02 1998-07-02 Knecht Filterwerke Gmbh Ringfilterelement mit die Stirnseiten dicht abdeckendem platten- oder folienförmigen Dichtmaterial
US5290330A (en) * 1993-06-10 1994-03-01 The Johns Hopkins University HEPA filtration system
DE4429490A1 (de) * 1994-08-19 1996-02-22 Knecht Filterwerke Gmbh Radial durchströmtes ringförmiges Filterelement
JP3499320B2 (ja) * 1995-03-09 2004-02-23 豊田紡織株式会社 エアフィルタ
JP2923496B1 (ja) * 1998-04-03 1999-07-26 三喜男 ▲餅▼田 自動車用円筒型エアフィルタの成形方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168204A1 (en) * 1972-01-20 1973-08-31 Herfilco Cartridge filter for fluid - with fabric sleeve inside grouped cylindrical pleated paper elements
US4559138A (en) * 1983-10-03 1985-12-17 Harmsco, Inc. End connected filter cartridges
US5306332A (en) * 1991-05-14 1994-04-26 Air-Gonomics, Inc. Columnar filtering unit for spray painting
DE9113019U1 (fr) * 1991-10-19 1993-02-11 Robert Bosch Gmbh, 7000 Stuttgart, De
EP0773054A1 (fr) * 1995-11-10 1997-05-14 KINGDRAGON S.p.A. Filtre à huile à longue durée de vie pour des moteurs à combustion interne
DE19624523A1 (de) * 1996-06-20 1998-01-02 Mann & Hummel Filter Filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7096124B2 (en) 2001-12-14 2006-08-22 Optiscan Biomedical Corporation Method of determining an analyte concentration in a sample from an absorption spectrum
WO2008004848A1 (fr) * 2006-07-03 2008-01-10 Iman Abdelkabir Bougie filtrante
WO2012084753A1 (fr) 2010-12-23 2012-06-28 Mahle International Gmbh Élément de filtre à air

Also Published As

Publication number Publication date
DE10153642B4 (de) 2009-08-27
DE10153642A1 (de) 2002-07-11

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