EP2091627A1 - Dispositif de filtration à rinçage à contre-courant pourvu d'éléments directeurs - Google Patents

Dispositif de filtration à rinçage à contre-courant pourvu d'éléments directeurs

Info

Publication number
EP2091627A1
EP2091627A1 EP06806435A EP06806435A EP2091627A1 EP 2091627 A1 EP2091627 A1 EP 2091627A1 EP 06806435 A EP06806435 A EP 06806435A EP 06806435 A EP06806435 A EP 06806435A EP 2091627 A1 EP2091627 A1 EP 2091627A1
Authority
EP
European Patent Office
Prior art keywords
filter device
filter
flow
guide elements
shut
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.)
Withdrawn
Application number
EP06806435A
Other languages
German (de)
English (en)
Inventor
Bert Miecznik
Marek Novotny
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.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
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 Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Publication of EP2091627A1 publication Critical patent/EP2091627A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B01D29/11—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
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • 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
    • B01D29/906—Special treatment of the feed stream before contacting the filtering element, e.g. cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid

Definitions

  • the invention relates to a backwashable filter device for filtering a liquid, in particular in domestic water systems.
  • the invention relates to a backwashable filter device comprising a main filter, which is flowed through by the liquid in a normal operation of the filter device and in a backwashing operation of the filter device.
  • a filter device has a pre-filter, which is flowed through in the backwashing operation.
  • the filter device comprises a movable means for generating a crossflow (crossflow means), which is arranged immediately before at least a part of the prefilter and / or the main filter for cleaning the same in normal operation and / or in the backflushing operation.
  • the cross-flow means comprises drive elements, which can be acted upon by a flow of the liquid for driving the cross-flow means.
  • Such a backwashable filter device is known in particular from the publication with the publication number DE 10 2005 004 552 A1.
  • the main filter is flowed through from the outside to the inside and in the backwash operation from inside to outside during normal operation.
  • the displaceable main filter is associated with a prefilter, which ensures the continuous filtration function during the backwashing.
  • a means for blocking the prefilter from the inlet is arranged, which can be opened or moved for the purpose of backwashing. Then the liquid is passed from the outside to the inside via the prefilter.
  • the liquid filtered by the prefilter is guided into the interior of the main filter.
  • the liquid is then passed through the main filter to the outside.
  • the cleaning can be enhanced by a spraying or spraying device (impeller), which can be rotatably mounted in the interior of the main filter.
  • the cross-flow means is provided, which can be driven by means of the attached drive elements by a flow of the purge stream of the liquid.
  • the present invention is based on the problem to adjust the flow in the filter device so that a reliable and safe drive of the drive means of the cross-flow means is possible.
  • a filter device comprises one or more elements, so-called guide elements, for directing the flow of the liquid in one direction, wherein the direction which impress the guide elements of the liquid, the direction of a circular path or a turning ice. Will the flow be such a direction imprinted, the flow with this imprinted direction is particularly suitable for driving a cross-flow medium.
  • the filter means comprises one or more elements (guide elements) adapted and arranged to direct the flow of liquid in one direction onto the drive elements of the cross-flow means.
  • the pre-filter of a filter device may be formed as a hollow cylinder. Then the cross-flow means is arranged in front of the prefilter. The drive elements of the cross-flow means can then be arranged on a circular path or on sections of a circular path.
  • a filter device may comprise a housing which encloses the main filter, the pre-filter and the cross-flow means.
  • the filter device may have means for shutting off (blocking) means of the prefilter against a liquid flowing into the filter device during normal operation.
  • the guide elements may be attached to a first of the shut-off or be integrally connected to the locking means. It is also possible that the guide elements are arranged on the inner wall of the housing. The guide elements are advantageously arranged in a space between the housing and the first shut-off or protrude into this space.
  • the vanes can according to the invention together with the housing and the first shut-off one or more channels form.
  • the channels and / or the guide elements may be helical.
  • the helices forming the channels and / or the guide elements may have an angular extent of 190 ° to 250 °, but preferably an angle of 210 ° to 270 °.
  • the helix or the helix may have a pitch of 0 ° to 20 °. Ie. , the liquid flows out almost in a circular path out of the channel.
  • An exit-side mouth of the channels may have a width that is 25% to 50%, but preferably 29% to 36% of the diameter of the first shut-off.
  • the filter device preferably has two guide elements, which are arranged symmetrically to each other.
  • the two guide elements then form two channels together with the first shut-off means and the housing.
  • the pre-filter of a filter device according to the invention may be displaceable for the change from normal operation to the backwash operation.
  • the first shut-off can be bell-shaped and the pre-filter can be inserted in normal operation in the first shut-off and pulled out in the backwash from the first shut-off.
  • a space between the pre-filter and the housing, on the one hand, and a space between the main filter and the housing, on the other hand, can be separated from one another in the backwashing operation, preferably by a second shut-off means and a third shut-off means.
  • An inlet of the filter device is advantageously connected directly in normal operation with the space between the housing and the main filter and the backwash directly to the space between the housing and the pre-filter.
  • FIG. 1 shows a partial section through a filter device according to the invention in normal operation
  • FIG. 2 shows a detail of FIG. 1 from the upper region of the filter device in section
  • FIG. 5 is a partial section of the filter device according to FIGS. 1 to 4 in the backflushing operation
  • Fig. 7 shows a detail of the filter device in the backwash according to FIG. 6 with further cut parts
  • the filter device 1 according to the invention shown in Figures 1 to 8 has a valve 10 which can be connected via an inlet connection 1 1 and an outlet connection 13 with a feeding or continuing line.
  • the inlet region 12 and the outlet region 14 of the fitting are separated from each other.
  • a manometer for monitoring the outlet side pressure is connected to a measuring port 16 in the outlet area.
  • a connection 17 is arranged for connection of a further pressure gauge or other measuring instrument for monitoring the inlet, which in the present case, however, is closed by a plug 140.
  • the fitting 10 further comprises a filter nozzle 15, to which a housing 20, in the form of a filter cup, is connected, as is common also in the known filter devices.
  • the housing 20 has a backwash outlet 21, through which water can escape from the filter device in the backwashing operation.
  • a ball valve 30 for closing the spout 21 is arranged in the backwash spout 21.
  • the ball valve 30 and the arrangement of the ball valve 30 in the backwash outlet 21 is designed in a conventional manner.
  • the outlet 14 of the fitting 10 is connected via a protruding into the filter nozzle 15 connecting piece 18 with the interior of the housing 20.
  • a first shut-off 50 This shut-off is bell-shaped and can be flowed through from bottom to top (see in particular Fig. 3).
  • an upper end of a displaceable filter insert 80 of the filter device 1 is arranged in the first shut-off means.
  • the filter cartridge 80 has for this purpose a ring 85 at its upper end, which is guided in the bell-shaped blocking means 50.
  • a bottom 83 On which a bearing pin 84 is formed.
  • This bearing pin 84 is slidably disposed in a ring 1 1 1 of a bearing means 1 10.
  • This ring 1 1 1 forms a bearing bush, in which the bearing pin
  • the ring 1 1 1 of the bearing means 1 10 is connected to the housing 20 in the region of Ruth Whyauslasses 21.
  • the filter insert is guided in the lower region of the housing 20 by a guide means 120, which has a ring 121 which cooperates with the outside of the filter element bottom 83 during normal operation of the filter device 1 in order to shut off the region of the backwash outlet 21 from the flow-through volume of the fitting 10
  • a guide means 120 which has a ring 121 which cooperates with the outside of the filter element bottom 83 during normal operation of the filter device 1 in order to shut off the region of the backwash outlet 21 from the flow-through volume of the fitting 10
  • wedge-shaped elements 122 pointing in the direction of the backwash outlet 21 are fastened.
  • the wedge-shaped elements 122 are fixed at a uniform distance from each other on the inside of the ring and guide the filter cartridge 80 when it moves toward the Ruth Cyprusauslass 21 in the backwash operation.
  • the filter insert 80 is supported against a spring 130.
  • the spring 130 is arranged between the bottom of the bottom 83 and the bearing means 1 10. The spring is biased so that the filter cartridge is pushed upwards. This is the position which the filter element has during normal operation of the filter device 1.
  • the filter cartridge can between the bottom 83 and the upper ring
  • the region of the prefilter is arranged in the upper part of the filter cartridge and is in normal operation completely within the first shut-off means 50.
  • the main filter is provided in the lower region of the filter cartridge 80.
  • a second shut-off means 60 is fixedly connected to the filter cartridge.
  • the second shut-off means 60 is formed by a cross-sectionally L-shaped ring which is arranged on the outside of the substantially hollow cylindrical filter insert 80.
  • This second shut-off means interacts with the first shut-off means 50 during normal operation of the filter device 1 and prevents water from entering a space between the first shut-off means 50 and the pre-filter 81.
  • the second shut-off means 60 cooperates with a third shut-off means 70, which is arranged annularly on the inside of the housing 20 is arranged.
  • the cooperation of the second shut-off means and the third shut-off means 70 prevents a direct connection of the space between the housing 20 and the pre-filter 81 on the one hand and the space between the housing 20 and the main filter 82 on the other hand.
  • a cross-flow means 100 for generating a cross-flow is arranged immediately before a part of the prefilter 81.
  • This cross-flow means is in the form of a hollow truncated cone which is rotatably mounted on the second shut-off means 60.
  • the crossflow means 100 is displaceable together with the filter cartridge 80 and the second shut-off means 60.
  • the cross-flow means has drive elements in the form of turbine blades 101, which cause a rotation in the backwashing of the filter device 1 when flowing.
  • the cross-flow means also has two elements 102, which conduct the cross-flow through the pre-filter 81 and are hereinafter referred to as guide elements 102.
  • the guide elements 102 are formed opposite each other on a ring 103, on which also the turbine blades 101 are formed.
  • the guide members 102 have a concave inner surface that abuts the pre-filter 81. In each case a channel is introduced into this concave inner surface. This channel is continued through the ring 103 and terminates at a lower end above the second shut-off means 60.
  • the shut-off means 60 has in the perpendicular to the filter insert 80 extending collar 61, Fig. 7 holes at which the channels of the cross-flow means end.
  • a liquid which is inside the prefilter 81, may enter the channels through the prefilter 81.
  • the liquid is then passed through the channel through the ring 103 and the bores in the collar 61 so that the liquid can pass through the second shut-off means 60.
  • a liquid flow from the outer space of the prefilter 81, through the prefilter 81 into the interior of the prefilter 81, from the interior of the prefilter 81 through the prefilter 81 into the channel of the crossflow means 100 is possible. From the channel, the liquid can then flow through the holes in the collar 62 of the second shut-off means in the space surrounding the main filter 82 and on to the backwash outlet 21.
  • guide elements 51 are attached on the outside of the first shut-off 50 . These guide elements 51 are helically placed around the bell-shaped body of the first shut-off 50 and attached to this or preferably integrally formed therewith.
  • the helix formed by the guide elements 51 tapers in the direction of flow.
  • the liquid is impressed on the helical exit in a direction which is approximately perpendicular to the main flow direction of the flushing medium.
  • the helical exit may have a residual tilt of about 5 ° to 20 °.
  • the two guide elements are configured axially symmetrical to the central axis of the bell-shaped body of the first shut-off means 50.
  • a liquid flowing into the intermediate space between the first shut-off element 50 and the housing 20 is accelerated both in a vector aimed at the turbine blades 101 and subjected to an internal twist.
  • this vector causes a better flow of the turbine blades 101 of the crossflow means 100.
  • a better transfer of force from the inflowing liquid to the turbine blades 101 is achieved by the internal swirl of the liquid.
  • a continuous drive of the cross-flow means 100 can be sufficiently secured in each operating state of the backwashing operation.
  • an impeller 90 is rotatably mounted with spray nozzles 91, the function of which is already known from DE 2005 004 552 A1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne un dispositif de filtration (1) à rinçage à contre-courant destiné à filtrer un liquide, notamment dans des systèmes de distribution d'eau à usage domestique. Le dispositif de filtration (1) comprend un ou plusieurs éléments (éléments directeurs 51) pour diriger l'écoulement du liquide dans une direction, et la direction que les éléments directeurs (51) marquent au liquide est la direction d'une trajectoire circulaire ou d'une spirale.
EP06806435A 2006-10-20 2006-10-20 Dispositif de filtration à rinçage à contre-courant pourvu d'éléments directeurs Withdrawn EP2091627A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/010145 WO2008046442A1 (fr) 2006-10-20 2006-10-20 Dispositif de filtration à rinçage à contre-courant pourvu d'éléments directeurs

Publications (1)

Publication Number Publication Date
EP2091627A1 true EP2091627A1 (fr) 2009-08-26

Family

ID=38110475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806435A Withdrawn EP2091627A1 (fr) 2006-10-20 2006-10-20 Dispositif de filtration à rinçage à contre-courant pourvu d'éléments directeurs

Country Status (4)

Country Link
EP (1) EP2091627A1 (fr)
CN (1) CN101641143A (fr)
AU (1) AU2006349968A1 (fr)
WO (1) WO2008046442A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490543B (en) * 2011-05-06 2013-06-12 Moss Hydro As Filter arrangement
DE202016101180U1 (de) * 2016-03-04 2017-06-07 Hans Sasserath Gmbh & Co. Kg Druckminderer-Filter-Anordnung
DE102017001970A1 (de) * 2016-10-12 2018-04-12 Hydac Process Technology Gmbh Filtervorrichtung
CN106422463B (zh) * 2016-10-26 2018-08-28 海宁市倍世环保科技有限公司 可反冲洗的前置过滤器组件
EP3360608B1 (fr) * 2017-02-10 2020-06-17 Honeywell Technologies Sarl Dispositif de filtration d'eau
CN112354252A (zh) * 2020-10-26 2021-02-12 海宁市水享净水设备有限公司 一种过滤器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108186B (de) * 1958-09-27 1961-06-08 Beratung Fuer Neuzeitliche Tec Fluessigkeitsfilter
DE7631815U1 (de) * 1976-10-12 1977-01-27 Braukmann Armaturen Ag, Rothrist (Schweiz) Rueckspuelbare filtereinrichtung
EP0025628A3 (fr) * 1979-09-12 1981-07-22 NoeL, MARQUET & CIE société anonyme: Filtre à liquides à nettoyage automatique de l'élément filtrant
DE59401282D1 (de) * 1994-12-24 1997-01-23 Honeywell Ag Rückspülbare Filtereinrichtung
EP1509306B1 (fr) * 2002-05-30 2008-07-23 Kkj, Inc. Dispositif et procedes de filtration amelioree par vortex
DE102005004552B4 (de) 2005-01-31 2011-07-21 Honeywell Technologies Sarl Ecc Rückspülbare Filtereinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008046442A1 *

Also Published As

Publication number Publication date
AU2006349968A1 (en) 2008-04-24
CN101641143A (zh) 2010-02-03
WO2008046442A1 (fr) 2008-04-24

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