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WO2020187652A1 - Ensemble filtre à la manière d'un séparateur centrifuge - Google Patents

Ensemble filtre à la manière d'un séparateur centrifuge Download PDF

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Publication number
WO2020187652A1
WO2020187652A1 PCT/EP2020/056426 EP2020056426W WO2020187652A1 WO 2020187652 A1 WO2020187652 A1 WO 2020187652A1 EP 2020056426 W EP2020056426 W EP 2020056426W WO 2020187652 A1 WO2020187652 A1 WO 2020187652A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
flow
longitudinal axis
filter arrangement
arrangement according
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2020/056426
Other languages
German (de)
English (en)
Inventor
Georg Klass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2020187652A1 publication Critical patent/WO2020187652A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream
    • 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
    • B01D29/17—Supported filter elements arranged for inward flow filtration open-ended the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/20—Pressure-related systems for filters
    • B01D2201/204—Systems for applying vacuum to filters

Definitions

  • the invention relates to a filter arrangement of the type
  • arranged and hollow cylinder-shaped filter element comprises radially and with it delimits a flow channel with an annular cross-section, which has a swirl chamber into which a flow inlet opens off-center and transversely to the longitudinal axis, as well as a separation channel connecting along the longitudinal axis directly or indirectly downstream of the swirl chamber.
  • Generic filter arrangements which are designed in the manner of a centrifugal separator and are often also referred to as cyclone filters, use the separating effect of centrifugal force, which acts on particles of solid substances contained within a gaseous or liquid swirl flow.
  • a rotationally symmetrically designed filter housing which is essentially tubular and laterally eccentric, serves to generate the swirl flow
  • Longitudinal axis provides a flow inlet through which the medium to be filtered is fed in with the formation of a swirl flow oriented around the longitudinal axis.
  • a tubular filter element is attached within the filter housing, which is subjected to a vacuum
  • the filter grain size of the filter wall is selected in a suitable manner, so that on the one hand a desired filter effect and on the other hand a sufficient flow passage through the filter wall into the interior of the filter element to produce a cleaned, i.e. filtered mass flow can be achieved.
  • the document EP 2 049 222 B1 discloses a generic filter device for separating impurities from a fluid stream by using a filter element which is accommodated in a filter housing, the
  • the filter housing has a swirl chamber in such a way that the fluid flow to be filtered is at least partially guided around the filter element in a swirl flow.
  • An inlet through which the medium to be filtered is fed opens into the swirl chamber, which is designed in the form of a conical widening of the filter housing, eccentrically to the longitudinal axis.
  • the filter element extending along the filter housing tapers conically with increasing distance from the swirl chamber and is connected in a fluid-tight manner in the area of the swirl chamber to an outlet for the filtered medium from the interior of the filter element.
  • filtering fluid flow which helically flows over the elongated tubular filter element with the formation of a swirl flow and, when pressurized, passes radially from the outside through the filter wall into the interior of the filter element, removing particles of solid substances.
  • the cleaned filtrate flow is pressure-driven from the inside of the filter element via the drain to the outside.
  • System-related filter residues adhering to the wall of the filter element lead to a deterioration in the filter effect and make
  • Filter cleaning measures often required. For example, backwashing the filter arrangement with cleaning air is suitable for this purpose.
  • the document DE 198 44 441 A1 describes a device for separating particles from a fluid with a rotating filter.
  • the document DE 198 11 090 A1 discloses a cyclone separator with a rotationally symmetrical housing, an inlet for a fluid containing dispersed substances and at least one outlet each for the dispersed substances and for the cleaned fluid.
  • the inlet opens into an annular channel.
  • a part of the housing wall is designed at the level of the ring channel in the form of a flow straightener connecting the ring channel to the interior of the housing.
  • the inside of the housing is in the form of a front end
  • bottom wall is formed shell-shaped bottom wall, wherein the bottom wall is penetrated by a concentric to the longitudinal axis arranged tube which protrudes from the bottom wall in the direction of one end face and serves as an outlet for the cleaned fluid.
  • the bottom wall are near the pipe
  • Drainage openings are provided which serve as an outlet for the dispersed substances.
  • the invention is based on the object of a filter arrangement in the manner of a centrifugal separator or cyclone filter with a filter around a longitudinal axis
  • arranged and hollow cylinder-shaped filter element comprises radially and with this delimits a cross-sectional annular flow channel, which has a swirl space in which a flow inlet opens off-center and transversely to the longitudinal axis, as well as a central or direct line along the longitudinal axis to the Has the swirl chamber adjoining separation channel, so that the above measures for filter cleaning are no longer necessary or at least in comparison to previously known solutions in significantly larger
  • a filter arrangement according to the solution with the features of the preamble of claim 1 is characterized in that in a region of the flow channel which is axially opposite the swirl space to the longitudinal axis
  • the flow outflow emerges eccentrically and transversely to the longitudinal axis from the separation channel, which is fluidically connected to a first suction unit that generates a flow suction.
  • the filter arrangement according to the solution is based on the fluid dynamics
  • Helical flow flows around, generated by suction.
  • a suction unit along the flow outlet, which opens into the separation channel, which preferably tapers in the flow cross-section along the flow direction, and is diametrically opposite the flow inlet along the longitudinal axis.
  • the filter arrangement according to the solution can also be referred to as a suction filter.
  • the fluid to be filtered which flows into the swirl chamber of the filter housing via the flow inlet, is pressure-free or at least not noticeably pressurized, so that the inflow of the fluid to be filtered into the filter housing exclusively or at least essentially through the
  • suction effect is determined according to the solution.
  • the fluid is stored in the form of a liquid in a storage container and
  • the suction effect of the suction unit should essentially determine the extent of the liquid inflow through the flow inlet, i.e. the suction unit carries a proportion of at least 90%, preferably more than 95% or 98%, of that for the fluid flow directed through the filter arrangement
  • a preferred embodiment provides for the flow inlet and outlet to be designed in the form of a flow channel section opening into the filter housing , each one
  • Channel longitudinal axis is assigned, which is tangential to the trajectory of a helical flow forming within the flow channel in each case at the location of the
  • Flow inlet or outlet is oriented.
  • the longitudinal axis of the channel of the flow inlet or outlet which is oriented towards the direction of flow, ensures an unimpeded flow of the fluid to be filtered through the filter arrangement.
  • the aim is within the separation channel, which is ring-shaped in cross section, with the highest possible flow around or overflow
  • the filter element which is preferably designed in the shape of a straight hollow cylinder, protrudes through at least the separation channel, preferably the filter housing completely, that is to say the swirl space in addition, in the longitudinal direction and delimits an inner,
  • generating suction unit is fluidically connected. In this way it is possible to individually adjust the filter throughput by adjusting the pressure level within the filtrate space by means of the second suction unit as a function of the pressure level within the separation space, which can essentially be predetermined by the first suction unit.
  • the amount of fluid flowing through the filter arrangement and to be filtered can also be determined individually by controlling or regulating the first suction unit, which can be selected in a suitable and optimized manner depending on the nature of the fluid to be filtered.
  • the first and second suction units preferably consist of an electric motor
  • the flow outlet fluidically connected to the separation channel is directly or indirectly via a
  • Fluid flow divider fluidly connected to the flow inlet opening into the filter housing, thereby allowing repeated filtration of the
  • Filter arrangement passed fluid flow or fluid flow components thereof is made possible.
  • a filter arrangement designed to be identical or constructed differently for example in the form of a screw or helical filter arrangement, see EP 2326493 B1.
  • the filter arrangement designed according to the solution is preferably suitable for the filtration of fluids in the form of aerosols or suspensions, the fluid to be filtered being made available to the filter arrangement in the area of the flow inlet in a pressureless or largely pressureless manner.
  • FIG. 2 plan view of the filter arrangement according to FIG. 1 and
  • FIG. 3 shows a view from below of the filter arrangement according to FIG. 1 designed according to the solution.
  • Figures 1 to 3 show three different views of a filter arrangement.
  • Fig. 1 shows the longitudinal section
  • Fig. 2 is a plan view
  • Fig. 3 is a
  • the filter arrangement 1 has a filter housing 2 which
  • Separation channel 4 includes.
  • the filter housing 2 is essentially
  • the filter housing 2 comprising the swirl chamber 3 is in this area
  • Cylindrical design and has a cylinder diameter di and a cylinder height hi.
  • the swirl chamber 3 is fluid-tight on one side upwards to the longitudinal axis 5 and flows along the longitudinal axis 5 directly into the conically shaped separation channel 4.
  • a cylinder-shaped filter element 7 extends through the center of the longitudinal axis 5 Swirl space 3 and the
  • Separation channel 4 has a largest flow diameter d2, which is smaller, preferably significantly smaller than the swirl chamber diameter d1. In this way, an effective swirl flow D with a high swirl number can develop within the swirl space 3 before the swirl flow D crosses into the separation channel 4 with the formation of a helical flow H.
  • the lower end of the separation channel 4 is fluidically connected to a flow outlet 8, along which a suction unit 9, preferably in the form of a suction pump, is integrated.
  • a suction unit 9 preferably in the form of a suction pump
  • the suction unit 9 the fluid F to be filtered is sucked into the interior of the filter housing 2 via the flow inlet 6, whereby the fluid F to be filtered entering the swirl chamber 3 is forced into a swirl flow H by the predetermined cylindrical contour, which in the area of the Swirl space 3 and the longitudinal axis 5 and the tubular filter element 7 arranged centrically to the longitudinal axis 5 rotates.
  • the swirl flow D formed in the form of a vortex of rotation within the swirl space 3 changes into a helical flow H flowing helically around the tubular filter element before it passes over the
  • the separation channel 4 has, along its longitudinal extension, an annular flow cross section which tapers with increasing distance from the swirl space 3. In the one illustrated in FIG The separation channel 4 is of a conical design
  • Filter housing wall limited radially.
  • the filter element 7 which is preferably designed in the shape of a straight hollow cylinder, has, at its end region facing away from the swirl chamber 3, a filtrate drain 10, along which a second suction unit 11 is arranged.
  • the filtrate throughput through the filter wall of the filter element 7 can be set in a predefinable manner by means of the second suction unit 11.
  • the filter effect can be individually adapted by means of the second suction unit 10.
  • the throughput of the fluid F to be filtered which passes through the entire filter arrangement along the swirl chamber 3 and the separation channel 4, can be preset by means of the first suction unit 9.
  • the filter element 7 which is preferably designed in the shape of a straight hollow cylinder, has a filter wall which preferably consists of a perforated, largely mechanically wear-resistant sheet metal. Alternatively, it is possible to make the filter wall from one
  • Wire mesh layer is arranged with the respective smaller grid openings radially outside to the straight hollow cylinder-shaped filter element.
  • the lattice structure or wire mesh layer which is arranged at least radially on the outside and preferably has elongated lattice or wire segments, in such a way that the longitudinal extension of the lattice or
  • Wire segments is possibly oriented parallel to the longitudinal axis 5 of the filter arrangement. In this way, each individual grid opening is formed close to the surface Flow turbulences that prevent or make it more difficult for particles of solid substances to settle inside the filter wall.
  • a number of rod-like turbulence bodies for example in the form of rods or pins with a round, oval or N-shaped cross section, are provided in a circular, preferably uniformly distributed arrangement around the straight cylinder-shaped filter element, each parallel to the longitudinal axis of the
  • the rod-like turbulence body can be directly or at a distance from
  • the helical flow flows over turbulence bodies obliquely or orthogonally to their longitudinal extent, so that flow vortices are formed immediately after each turbulence body in the overflow direction, which prevent or at least make it more difficult for particles to settle inside the filter wall openings.
  • a cleaning unit 12 which is arranged in the interior of the filter element 7 in the area of the swirl chamber 3, serves to flush the
  • Filter element 7 with a flushing fluid.
  • the cleaning unit 12 can be permanently installed or, if necessary, introduced into the interior of the filter element 7.
  • the filter housing provides a fluid-tight, mountable cover 13 in the upper area.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)

Abstract

L'invention concerne un ensemble filtre à la manière d'un séparateur centrifuge ou d'un filtre cyclonique comportant un boîtier de filtre à symétrie de rotation autour d'un axe longitudinal, ledit boîtier de filtre comprenant dans le sens radial un élément filtrant cylindrique creux agencé de manière centrée par rapport à l'axe longitudinal, élément filtrant avec lequel il délimite un conduit d'écoulement annulaire en section transversale, ledit canal d'écoulement comportant un espace de tourbillonnement, dans lequel débouche une entrée d'écoulement, de manière excentrée et transversalement à l'axe longitudinal, ainsi qu'un conduit de séparation attenant, le long de l'axe longitudinal, indirectement ou directement en aval de l'espace de tourbillonnement. L'invention se caractérise en ce que, dans une zone du conduit d'écoulement située à l'opposé de l'espace de tourbillonnement axialement par rapport à l'axe longitudinal, une sortie d'écoulement sort du conduit de séparation, de manière excentrée et transversalement à l'axe longitudinal, ladite sortie d'écoulement étant en liaison fluidique avec une première unité d'aspiration qui génère une aspiration d'écoulement.
PCT/EP2020/056426 2019-03-15 2020-03-11 Ensemble filtre à la manière d'un séparateur centrifuge Ceased WO2020187652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019203551.5 2019-03-15
DE102019203551.5A DE102019203551A1 (de) 2019-03-15 2019-03-15 Filteranordnung nach Art eines Fliehkraftabscheiders

Publications (1)

Publication Number Publication Date
WO2020187652A1 true WO2020187652A1 (fr) 2020-09-24

Family

ID=70613728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/056426 Ceased WO2020187652A1 (fr) 2019-03-15 2020-03-11 Ensemble filtre à la manière d'un séparateur centrifuge

Country Status (2)

Country Link
DE (1) DE102019203551A1 (fr)
WO (1) WO2020187652A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118903912A (zh) * 2022-08-24 2024-11-08 北京喜藻环能科技有限公司 一种微藻养殖用连续过滤设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750885A (en) * 1971-06-28 1973-08-07 Universal Oil Prod Co Strainer apparatus with power assisted cleaning means
DE2708135A1 (de) * 1977-02-25 1978-08-31 Schauenburg Masch Vorrichtung zur aufbereitung von truebe
DE19811090A1 (de) 1998-03-13 1999-09-16 Georg Klas Zyklonabscheider
DE19844441A1 (de) 1998-09-28 2000-04-06 Lundin Filter Gmbh Vorrichtung und Verfahren zum Abtrennen von Teilchen aus einem Fluid
WO2003059821A1 (fr) * 2002-01-09 2003-07-24 Birgir Nilsen Appareil et procede de separation et de filtrage de particules et d'organismes a partir de liquides d'ecoulement
EP2049222B1 (fr) 2006-08-08 2014-06-18 Hydac Process Technology GmbH Dispositif de filtration
EP2326493B1 (fr) 2008-09-12 2015-11-11 Georg Sen. Klass Filtre-presse à vis sans fin
JP2016077946A (ja) * 2014-10-14 2016-05-16 ワイエスフィルタージャパン株式会社 カートリッジフィルターハウジング

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069116B (de) * 1952-09-24 1959-11-19 Nichols Engineering S. Research Corporation, New- York, N. Y. (V.St.A.) Verfahren und Vorrichtung zum Abscheiden von feste Stoffe enthaltenden Faserstoffaufschwemmungen an einem Hydrozyklon
DE6751147U (de) * 1968-09-20 1969-02-13 Voith Getriebe Kg Heidenheim Wirbelabscheider zum abscheiden von gas aus fluessigkeit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750885A (en) * 1971-06-28 1973-08-07 Universal Oil Prod Co Strainer apparatus with power assisted cleaning means
DE2708135A1 (de) * 1977-02-25 1978-08-31 Schauenburg Masch Vorrichtung zur aufbereitung von truebe
DE19811090A1 (de) 1998-03-13 1999-09-16 Georg Klas Zyklonabscheider
DE19844441A1 (de) 1998-09-28 2000-04-06 Lundin Filter Gmbh Vorrichtung und Verfahren zum Abtrennen von Teilchen aus einem Fluid
WO2003059821A1 (fr) * 2002-01-09 2003-07-24 Birgir Nilsen Appareil et procede de separation et de filtrage de particules et d'organismes a partir de liquides d'ecoulement
EP2049222B1 (fr) 2006-08-08 2014-06-18 Hydac Process Technology GmbH Dispositif de filtration
EP2326493B1 (fr) 2008-09-12 2015-11-11 Georg Sen. Klass Filtre-presse à vis sans fin
JP2016077946A (ja) * 2014-10-14 2016-05-16 ワイエスフィルタージャパン株式会社 カートリッジフィルターハウジング

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118903912A (zh) * 2022-08-24 2024-11-08 北京喜藻环能科技有限公司 一种微藻养殖用连续过滤设备

Also Published As

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