EP2646177A2 - Robinetterie de répartition de gaz et procédé pour commander la répartition de gaz dans le but de nettoyer des éléments filtrants immergés - Google Patents

Robinetterie de répartition de gaz et procédé pour commander la répartition de gaz dans le but de nettoyer des éléments filtrants immergés

Info

Publication number
EP2646177A2
EP2646177A2 EP11790880.6A EP11790880A EP2646177A2 EP 2646177 A2 EP2646177 A2 EP 2646177A2 EP 11790880 A EP11790880 A EP 11790880A EP 2646177 A2 EP2646177 A2 EP 2646177A2
Authority
EP
European Patent Office
Prior art keywords
filter elements
disc
disc valve
gas
fitting
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Withdrawn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
EP11790880.6A
Other languages
German (de)
English (en)
Inventor
Martin Brockmann
Jürgen KÜNZEL
Heribert MÖSLANG
Norbert Wegmann
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.)
Veolia Water Technologies Deutschland GmbH
Original Assignee
Aquantis 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 Aquantis GmbH filed Critical Aquantis GmbH
Publication of EP2646177A2 publication Critical patent/EP2646177A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
    • B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
    • 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
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • 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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H2033/0037—Arrangement for cleaning the fluid during use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/26—Specific gas distributors or gas intakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2315/00—Details relating to the membrane module operation
    • B01D2315/06—Submerged-type; Immersion type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/18—Use of gases
    • B01D2321/185—Aeration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87708—With common valve operator

Definitions

  • the invention relates to a fitting for distributing a gas flow to two or more flow channels, the fitting having an inlet nozzle and two or more separate outlet nozzle.
  • the invention relates to a method for cleaning filter elements immersed in a basin, in particular membrane filters, by aeration of the filter elements by means of gas bubbles, which are introduced below the filter elements in the basin via aerators, wherein a gas stream for ventilation of the filter elements by means of a blower becomes
  • Such multi-way valves are known. Furthermore, it is known to clean filter systems in immersed design for the solid-liquid and liquid-liquid separation by means of gas bubbles (usually air), i. the two-phase liquid / gas flow is utilized for the removal of solids from the filter surface and thus for the deconcentration of solids in the immediate vicinity of the filter.
  • the gas is usually compressed by a blower and introduced via so-called aerators in the lower part of the filter in the medium.
  • the amount of gas required for the efficient purification of solids from the filter surface determines the energy consumption for the filter
  • Air-cycling valves have a high switching frequency of sometimes over 3 million switching operations per year and are therefore subject to heavy wear. Furthermore, they have a considerable need for compressed air, which is reflected very negatively in energy consumption.
  • the object of the invention is to develop a fitting and a method for cleaning filter elements immersed in a basin of the type mentioned above in such a way that the stated disadvantages of the prior art are overcome and, in particular, effective cleaning of dipped filter elements is made possible with optimized energy consumption , Furthermore, a fitting with a longer life is to be provided.
  • the fitting has an inlet connection and two or more separate outlet nozzle, it is that before each outlet nozzle a disc valve is arranged, wherein the Disc valve inserts of two or more disc valves are kinematically coupled.
  • the disc valve inserts of two or more disc valves via a belt, in particular toothed belt or V-belt or the like, coupled together.
  • the disc valve inserts of two or more disc valves may be coupled together via external gears.
  • the disc valve inserts of two disc valves have a relative angular displacement of 60 ° to 120 °, in particular 90 ° to each other.
  • the fitting has an electric motor for rotatably driving the disks of the disk valves, in particular a variable speed electric motor.
  • an electric motor allows a variation of the speed, resulting in the possibility of irregular and pulse-like loading of the various outlet nozzle. This allows a particularly advantageous use of the fitting in the inventive method for cleaning dipped filter elements.
  • the disc valve inserts can be formed by flat disks or by valve inserts, which are formed by circular sectors, in particular by circular sectors with a central angle of up to 90 °.
  • valve inserts formed by circular sectors By using valve inserts formed by circular sectors, different courses in the opening and closing behavior of the disk valves can be realized, in particular this allows a further energetic optimization of the consumption of supplied, compressed gas and thus an optimization of the energy consumption of the entire system.
  • the term circular sector refers to the projection of the disc valve insert in the direction of the axis of rotation of the disc valve insert. In the flow direction, the projection of the disc valve insert is always adapted to the inner contour of the flow channel, preferably circular.
  • the valve preferably has a fan, in particular a speed-controlled fan, for providing the gas flow.
  • the pulse-like ventilation is generated by means of a valve according to the invention by an irregular variation of the speed of the disc valve inserts, in particular by a variation of the rotational speed of an electric motor for rotational drive of the disc valve inserts at irregular intervals.
  • the drive of the disc valve inserts of the valve does not run at a constant speed. Rather, the speed of the drive is varied by a control at irregular intervals, so that a pulse-like ventilation is effected, which does not take place in regular, repeated in equal short periods time intervals.
  • Figure 1 A submerged membrane filter system with a fitting for
  • FIG. 1 is a plan view of the disc valve inserts of the valve according to
  • Figure 4 is a plan view of a disc valve insert of a second
  • Embodiment of a fitting Embodiment of a fitting.
  • FIG. 1 shows a submerged membrane filter system with a fitting 15-19 for distributing the air flow for ventilation of the membrane filter elements 4 for cleaning the membrane filter elements by means of irregular ventilation.
  • the liquid to be filtered 1 is fed to a tank or tank 8.
  • the dipped filter elements 4 are installed.
  • the filtrate 2 is sucked out of the system by a negative pressure resulting from a pump 9 or a water level difference delta H between the level 10 in the basin 8 and the filtrate outlet 11.
  • the retentate 3 (the enriched solids) is discharged elsewhere from the tank 8.
  • aerators 5 Below the filter elements 4 so-called aerators 5 are installed.
  • the gas 6 in the case of aerobic processes air
  • the rising gas bubbles 12 in combination with the induced liquid flow cause a cleaning of the filter elements.
  • the invention is based essentially on the gas distribution valve 15-19, which distributes the amount of gas supplied by a continuously running fan 7 to individual aerators 5 and a controller 19 which controls the drive 18 of the gas distribution valve 15-19 so that by a variable drive speed pulsed ventilation for the filter 4 is achieved. A cyclical switching in regular, short intervals between ventilation and non-ventilation is thus prevented.
  • the gas distribution valve consists essentially of two modified disc valves 15, 16, which are connected to each other via a toothed belt 17 and are driven by an electric motor 18.
  • the disc valve inserts are offset at an angle of 90 ° to each other.
  • the drive of the gas distribution valve performs a pure rotational movement, which is transmitted to the valve inserts 15, 16.
  • the drive 18 of the gas distribution valve does not run at a constant speed. Rather, the speed of the drive 18 is varied by the controller 19 at irregular intervals, so that a pulse-like ventilation is effected, which thus does not take place in regular, repeated in equal short periods time intervals. Due to the pulse-like ventilation, the filters 4 are cleaned particularly efficiently. This reduces the gas consumption necessary for filter cleaning. As a result, the energy requirement for the compression of the gas is reduced.
  • the fitting according to the invention with the described rotary drive is not subject to significant wear. As a result, the reliability of the filter systems is significantly increased.
  • the energy required to drive the valve is only a fraction of the energy required to generate the compressed air required to drive conventional disc valves.
  • valve with the electric motor drive 18 is shown in a side view.
  • the valve disk inserts 15, 16 are kinematically coupled via the toothed belt 17.
  • the disk valves 15, 16 are each arranged in front of one of the two outlet ports 21, 22.
  • the air is supplied via the inlet connection 20 of the fitting.
  • valve disk inserts 15, 16 of the valve according to FIG. 2 are shown enlarged in FIG. In the position shown in Figures 2 and 3, the disc valve 15 is fully open, i. the flow cross section of the outlet nozzle 21 is fully released, so that the air flow in this position is maximum.
  • the second disc valve 16 is fully closed in this position, i. the flow cross-section of the outlet nozzle 22 is completely covered by the disk insert 16, so that the air flow in this position is minimal.
  • angle range 16 'of the flap positions is indicated in FIG. 3, in which no air flow takes place.
  • FIG. 4 shows a further flap embodiment of a disk valve.
  • the flap is formed by two circular sectors 15 ', 15 "The term of the circular sector 15', 15” refers to the view perpendicular to the Rotation axis 23 of the disc valve insert within the flow cross section 24 of the outlet nozzle as shown in Figure 4.
  • the rotation axis 23 of the disc valve insert is perpendicular to the flow direction. Because the disk valve insert is formed in this embodiment by circular sectors 15 ', 15 ", the angle at which no air flow takes place is increased and thus the closing time in the outlet nozzle is lengthened, resulting in a further reduction of the air requirement.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne une robinetterie pour répartir un flux gazeux sur au moins deux canaux d'écoulement, ladite robinetterie présentant une tubulure d'entrée (20) et au moins deux tubulures de sortie (21, 22) séparées, une soupape à disque étant disposée devant chaque tubulure de sortie (21, 22), les inserts (15, 16) d'au moins deux soupapes à disque étant accouplés cinématiquement. L'invention concerne également un procédé pour nettoyer des éléments filtrants (4) immergés dans un bassin (1), notamment des membranes filtrantes, par aération des éléments filtrants au moyen de bulles de gaz qui sont introduites sous les éléments filtrants (4) dans le bassin (1) par l'intermédiaire d'aérateurs (5), un flux gazeux servant à aérer les éléments filtrants (4) étant produit au moyen d'une soufflante (7), le flux gazeux étant réparti sur au moins deux aérateurs (5) au moyen d'une robinetterie, la répartition du flux gazeux étant réalisée en discontinu de sorte qu'une aération pulsée des éléments filtrants (4), de durée variable, s'effectue à intervalles irréguliers.
EP11790880.6A 2010-12-03 2011-11-30 Robinetterie de répartition de gaz et procédé pour commander la répartition de gaz dans le but de nettoyer des éléments filtrants immergés Withdrawn EP2646177A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010053180 DE102010053180A1 (de) 2010-12-03 2010-12-03 Gasverteilarmatur sowie Verfahren zur Steuerung der Gasverteilung zur Reinigung von getauchten Filterelementen
PCT/EP2011/005998 WO2012072247A2 (fr) 2010-12-03 2011-11-30 Robinetterie de répartition de gaz et procédé pour commander la répartition de gaz dans le but de nettoyer des éléments filtrants immergés

Publications (1)

Publication Number Publication Date
EP2646177A2 true EP2646177A2 (fr) 2013-10-09

Family

ID=45093681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11790880.6A Withdrawn EP2646177A2 (fr) 2010-12-03 2011-11-30 Robinetterie de répartition de gaz et procédé pour commander la répartition de gaz dans le but de nettoyer des éléments filtrants immergés

Country Status (5)

Country Link
US (1) US20130239998A1 (fr)
EP (1) EP2646177A2 (fr)
CA (1) CA2815901A1 (fr)
DE (1) DE102010053180A1 (fr)
WO (1) WO2012072247A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127005B (zh) * 2014-04-11 2018-09-21 衢州市优德工业设计有限公司 一种具有高可靠性的浮选方法
CN111298572B (zh) * 2019-12-20 2021-12-10 江苏星鑫分离设备制造有限公司 多向排放式废气净化处理装置
CN113526728B (zh) * 2021-07-22 2023-02-03 佛山市三水佛水供水有限公司 一种用于处理滤池反冲洗废水的快速膜滤装置及其使用方法
LU507870B1 (de) * 2024-07-28 2026-01-28 Wilo Se Rotationsventil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859324A (en) * 1987-12-22 1989-08-22 Ag Fur Industrielle Elektronik Agie Apparatus for filtering machine liquid of an electroerosion machine
US20040232076A1 (en) * 1996-12-20 2004-11-25 Fufang Zha Scouring method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749004A (en) * 1987-05-06 1988-06-07 The Boeing Company Airflow control valve having single inlet and multiple outlets
US4889317A (en) * 1987-10-14 1989-12-26 Geoflow International Pty. Limited Proportional flow control valve
US6706189B2 (en) * 1998-10-09 2004-03-16 Zenon Environmental Inc. Cyclic aeration system for submerged membrane modules
DE102004048416B4 (de) * 2004-04-02 2007-08-30 Koch Membrane Systems Gmbh Verfahren zum Begasen von Membranmodulen
FR2900455B1 (fr) * 2006-04-26 2008-07-04 Valeo Sys Controle Moteur Sas Vanne a deux papillons actionnes par un moteur commun
US8230871B2 (en) * 2007-02-12 2012-07-31 Hurst James W Fluid activated flow control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859324A (en) * 1987-12-22 1989-08-22 Ag Fur Industrielle Elektronik Agie Apparatus for filtering machine liquid of an electroerosion machine
US20040232076A1 (en) * 1996-12-20 2004-11-25 Fufang Zha Scouring method

Also Published As

Publication number Publication date
WO2012072247A2 (fr) 2012-06-07
DE102010053180A1 (de) 2012-06-06
CA2815901A1 (fr) 2012-06-07
US20130239998A1 (en) 2013-09-19
WO2012072247A3 (fr) 2013-04-04

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