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EP0996503A1 - Reservoir d'eau a cartouche filtrante - Google Patents

Reservoir d'eau a cartouche filtrante

Info

Publication number
EP0996503A1
EP0996503A1 EP98941263A EP98941263A EP0996503A1 EP 0996503 A1 EP0996503 A1 EP 0996503A1 EP 98941263 A EP98941263 A EP 98941263A EP 98941263 A EP98941263 A EP 98941263A EP 0996503 A1 EP0996503 A1 EP 0996503A1
Authority
EP
European Patent Office
Prior art keywords
filter cartridge
water
filter
water container
water tank
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Withdrawn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
EP98941263A
Other languages
German (de)
English (en)
Inventor
Klaus E. Zucholl
Günter Biechele
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.)
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Original Assignee
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Aweco Appliance Systems GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7834668&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0996503(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein, Aweco Appliance Systems GmbH and Co KG filed Critical Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Priority to EP03003807A priority Critical patent/EP1340442B2/fr
Publication of EP0996503A1 publication Critical patent/EP0996503A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/60—Cleaning devices
    • A47J31/605—Water filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/088—Arrangements for killing microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate

Definitions

  • the invention relates to a water container with a filter cartridge according to the preamble of claim 1.
  • water treatment using a water filter is often provided.
  • an integrated mixture of activated carbon and ion exchanger is provided in a filter cartridge, which removes odors and flavors, heavy metals, organic impurities and suspended matter (particles) and, if necessary, reduces the water hardness.
  • Known beverage machines use interchangeable filter cartridges for this purpose, which are arranged outside the water tank in the process of beverage preparation.
  • a device suitable for this is described in GB 1 159 078-B.
  • a disadvantage of this device is the high effort for replacing the cartridge, in particular the loosening and establishing the water-carrying connection with the risk of leakage, and the high space requirement due to the housing and connection technology. Due to the large number of sealing and screw connections as well as housing gaps there is an increased risk of contamination.
  • DE 35 22 966.7 filter cartridges for water filter cans are described. These cans usually consist of a raw water tank with a receptacle for the filter cartridges, the filter cartridge itself and the clean water tank.
  • these devices are impractical due to the separate water treatment step, the filter bed can dry out and there is a risk of bed compression and channel formation in the filter bed due to the discharge operation.
  • the filter cartridges can still not be used directly in the water tank of beverage machines.
  • the object of the invention is to propose a water container with a filter cartridge in which the risk of nucleation and bed compression of the filter bed is reduced or avoided.
  • a water container according to the invention is provided with a filter cartridge in the interior of the water container, a water inlet opening of the filter cartridge being arranged at the bottom and a passage for the water through the filter cartridge in the upflow. Furthermore, a descending downpipe for guiding the water to a removal connection of the water container located below is provided. This flows through the filter cartridge in a so-called upflow principle.
  • the filter mixture which preferably consists of activated carbon and ion exchanger in a known manner, is suspended upwards during operation, which counteracts bed compression of the filter bed. Due to the arrangement inside the container, the risk of leakage is harmless, so that simple sealing measures can be used. With the help of the downpipe, which opens at the bottom of the filter cartridge, the connection to the drain line of the container can be easily established.
  • the descending downpipe is advantageously arranged within the filter cartridge.
  • the bottom connection of the filter cartridge can be made centrally, the inflow openings in the filter cartridge being able to be made at any position further out, preferably distributed in a ring.
  • holding elements projecting upward from the bottom of the container are provided for fixing the filter cartridge.
  • the filter cartridge can be attached to such holding elements, there being no bottom depressions in which corresponding backwater can form even when the container is empty.
  • Fixing elements of the filter cartridge can act on such holding elements, so that the filter cartridge is fixed in the water tank by positive locking.
  • the filter cartridge By attaching the filter cartridge to the bottom of the water tank in the immediate area of the drain connection, other, z. B. laterally attached to the water tank. When the filter cartridge is removed, the water tank is freely accessible for cleaning or other handling.
  • the holding elements have passages at the bottom of the water container. This enables the water to be drawn off even without a filter cartridge, water passing directly through these passages into the drain of the container bottom. Accordingly, the passages in the holding elements on the tank bottom should be as close as possible to the floor level in order to enable the water tank to be emptied as completely as possible when operating without a filter cartridge.
  • the holding elements are designed as an annular plug-in base.
  • This plug-in base can be designed, for example, in the form of an annular web with corresponding bottom bores or also in the form of pins arranged in a ring.
  • a likewise annular inner collar of the filter cartridge is preferably inserted into this annular arrangement. With the help of this inner collar, which is advantageously additionally provided with a seal, the passage to the container drain intended for filter-free operation can thus be closed and sealed within the plug-in base during filter operation.
  • this seal is designed as an axial seal, which seals the inner collar against the bottom of the container.
  • an additional sieve is provided for retaining particles, for example filter material, in the drainage area of the downpipe, this can be fixed, for example, by a corresponding disc-shaped collar protruding between the axial seal mentioned and the bottom of the container and by inserting the filter cartridge is fixed to the bottom of the container via the inner collar and the axial seal.
  • an outer annular outer collar is also provided on the filter cartridge, which surrounds the outside of the plug-in base. This makes it possible that the actual filter bed in the radial direction over the The plug-in base starts protruding above the plug-in base, but a low suction height of the water is still guaranteed. A low suction height is necessary in order to empty the water tank as much as possible during filter operation.
  • the outer collar can, for example, have corresponding passages near the bottom or also end at a certain distance from the tank bottom. In the latter case, a suction gap is left open along the entire circumference of the outer collar, through which the container is emptied during filter operation.
  • This stop can be realized, for example, in the form of a projection which projects radially from the inner collar and which abuts on the plug-in base.
  • the outer collar can also be provided with clamping elements, by means of which it can be clamped on the plug-in base.
  • clamping elements can be designed, for example, in the form of clamping ribs, so that the passage of the sucked-in water to the filter bed remains ensured between the clamping ribs.
  • a filter mixture of activated carbon and possibly of ion exchange resin is preferably used.
  • a boundary made of porous filter layers for example made of porous polyethylene, is preferably provided.
  • other mechanical restraint systems e.g. B. corresponding sieve inserts.
  • length compensation is also provided for using the filter cartridge in water containers of different heights. In a particularly simple embodiment, such a length compensation can be designed in the form of an extension rod or an extension tube.
  • the filter cartridge can always be of the same design, a cover with the length compensation required in each case being used.
  • the lid is advantageously designed to be replaceable, for example with the aid of snap-in connections.
  • the length compensation can be done by pressing on the cover with the appropriate length compensation when installing the filter cartridge.
  • a device for identifying the expiry date of the filter is attached to the filter cartridge.
  • the filter can already be marked during assembly so that it can be checked at any time by visual inspection whether a filter replacement is necessary.
  • This date setting is preferably attached to the cover in such a way that the date marking is adjusted by turning the cover. In particular, this also enables the setting of this date marking by turning the cover over the length compensation attached to it. In this respect, the setting is easy to use even when the lid of the filter cartridge is located far inside the water tank.
  • the filter cartridge is provided with a circumferential taper from top to bottom.
  • FIG. 1 shows a schematic longitudinal section through a filter cartridge in a water container
  • FIG. 2 is a plan view of an object according to FIG. 1,
  • FIG. 3 shows an enlarged detail from FIG. 1 in the connection area of the container bottom
  • Fig. 4 is a schematic longitudinal section of a further embodiment
  • FIG. 5 is a top view of the embodiment of FIG. 4.
  • a filter cartridge 2 with a filter mixture 3, for example made of activated carbon and ion exchange resin.
  • the wall 4 of the filter cartridge 2 is formed with a tapering cross section from top to bottom. which facilitates the floating of the filter mixture 3.
  • a downpipe 5 is arranged essentially vertically in the interior of the filter cartridge 2 and is closed off with a filter attachment 6 made of porous material, for example polyethylene.
  • the entire filter cartridge 2 is closed with a cover 7, which has a rotary mechanism (not recognizable in more detail) for marking a date.
  • the cover 7 comprises a window 8 through which a marking disc 9 is visible.
  • the marking of the marking disk 9 visible in the window 8 can thus be adjusted.
  • a plug-in base 12 is integrally formed on the container bottom 10 around a drain 11.
  • a sieve insert 13 with an annular collar 14 is inserted within the plug base 12.
  • the sieve insert 13 is enclosed by an inner collar 15 which has a radially outwardly projecting stop 16 for limiting the insertion depth.
  • an axial seal 17 is attached, i. H. in the present case inserted into a corresponding flat annular groove.
  • the axial seal 17 seals the inner collar 15 over the ring collar 14 to the container bottom 10.
  • the inner collar 15 merges into the downpipe 5 on its upper side via a shoulder 18.
  • the peripheral wall 20 merges into an outer collar 21 which, due to the insertion depth specified by the stop 16, leaves an intake gap 22 in the region of the container bottom 10.
  • the diameter of the Outer collar 21 is dimensioned such that a passage 23 to the filter insert 19 remains open between the outer collar 21 and the stop 16 projecting radially from the inner collar.
  • the outer collar 21 is also clamped on the plug base 12 by means of clamping ribs 24.
  • FIGS. 4 and 5 essentially corresponds to the subject of FIGS. 1 and 2.
  • the same filter cartridge 2 is used as in the aforementioned embodiment.
  • Only the lid 7 ' is otherwise designed in that it is provided with a rod extension 25. Since the covers 7, 7 'are simply attached to the filter cartridge with the aid of a catch, the attachment of the rod extension 25 is particularly simple.
  • the filter cartridge 2 can easily be inserted into the water tank 1 'from above and plugged onto the plug-in base 12 and, on the other hand, additionally fixed on the top, if appropriate, via a corresponding, not shown, tank lid.
  • the lid marking can also be conveniently actuated via the rod extension 25, as in the aforementioned exemplary embodiment the lid 7 'is rotated until the correct marking of the marking disk 9' can be seen in its window 8 '.
  • the device according to the invention functions in the following manner.
  • the required amount of water is sucked in via the drain 11 from the corresponding vending machine. This leads to a water flow from the inside of the container 1 through the suction gap 22 between the outer collar 21 and the container bottom 10. The water flows inside the outer collar 21 between the clamping ribs 24 upwards to the filter insert 19 and passes through it.
  • the filter insert 19 like the filter attachment 6, which can consist of the same material, serves to hold the filter mixture 3 inside the filter cartridge 2.
  • the sucked-in water then flows upwards through the filter mixture 3 and is filtered in the process and softened if necessary in the presence of ion exchange resin.
  • the water enters the downpipe 5, through which it can flow downwards, where it passes into the drain 11 after passing through the strainer insert 13 and is available for the preparation of beverages.
  • the area within the outer collar, which is connected to the water of the container 1 through the suction gap 22, must be reliably sealed off from the drain 11. This is achieved in the present case by the axial seal 17 in connection with the inner collar 15.
  • the plug-in base 12 advantageously has 10 passages at least in the region of the container bottom.
  • the plug-in base 12 can also consist of individual upstanding ribs, since the inner closure takes place via the inner collar 15 and the axial seal 17.
  • the plug-in base 12 must be permeable to water in the region of the container bottom, provided that the water container 1 is also used without a filter cartridge 2 and is complete Emptying of the container 1 should take place. With the filter cartridge 2 removed, the water in the bottom of the container flows directly through the passages 26 into the drain 11.
  • Operation without a filter cartridge 2 can be useful if this is not necessary due to the water quality or if the operation should not be interrupted if there is no replacement filter cartridge 2, the corresponding drinks machine being operated temporarily without water treatment.
  • the due replacement of the filter cartridge 2 can be easily set via the markings 7, 8, 9, so that the replacement is not forgotten at the appropriate time.
  • the described filter cartridge 2 in the water tank 1 offers the various advantages mentioned above.
  • the filter mixture 3 cannot be compressed because it is regularly suspended by the inflow of water.
  • the filter cartridge 2 can be used by simply plugging it onto the plug base 12 without any further connection connections.
  • the arrangement of the filter cartridge 2 inside the water container 1 makes the entire device insensitive to any leakage at the filter connection.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne un réservoir d'eau à cartouche filtrante utilisé, en particulier, dans des distributeurs automatiques de boisson et qui réduit ou évite le risque de formation de germes et de densification de la couche filtrante. A cet effet, l'ouverture d'entrée d'eau (22) de la cartouche filtrante (2) se situe en bas, un passage pour l'eau étant ménagé à travers la cartouche filtrante (2) dans le courant ascendant et une conduite de retour descendante (5) amenant l'eau vers l'écoulement (11) situé en bas du réservoir d'eau (1).
EP98941263A 1997-07-04 1998-07-03 Reservoir d'eau a cartouche filtrante Withdrawn EP0996503A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03003807A EP1340442B2 (fr) 1997-07-04 1998-07-03 Distributeur de boisson avec réservoir d'eau et cartouche filtrante

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19728631 1997-07-04
DE19728631 1997-07-04
PCT/DE1998/001842 WO1999001220A1 (fr) 1997-07-04 1998-07-03 Reservoir d'eau a cartouche filtrante

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03003807A Division EP1340442B2 (fr) 1997-07-04 1998-07-03 Distributeur de boisson avec réservoir d'eau et cartouche filtrante

Publications (1)

Publication Number Publication Date
EP0996503A1 true EP0996503A1 (fr) 2000-05-03

Family

ID=7834668

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03003807A Expired - Lifetime EP1340442B2 (fr) 1997-07-04 1998-07-03 Distributeur de boisson avec réservoir d'eau et cartouche filtrante
EP98941263A Withdrawn EP0996503A1 (fr) 1997-07-04 1998-07-03 Reservoir d'eau a cartouche filtrante

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03003807A Expired - Lifetime EP1340442B2 (fr) 1997-07-04 1998-07-03 Distributeur de boisson avec réservoir d'eau et cartouche filtrante

Country Status (4)

Country Link
US (1) US6383375B1 (fr)
EP (2) EP1340442B2 (fr)
DE (2) DE19827623A1 (fr)
WO (1) WO1999001220A1 (fr)

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DE102006006932A1 (de) * 2006-02-14 2007-08-30 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Filterpatrone zum Einsetzen in einen Wasservorratstank
DE102006044746B4 (de) * 2006-04-05 2021-09-23 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Wasserfilter mit Verschneidevorrichtung
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DE102010023612A1 (de) * 2009-06-15 2010-12-16 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Teeaufbereitungsgerät mit einem Wassertank und einem darin befindlichen Wasserfilter mit wasserstoffförmigen Kationentauscher
US20120244362A1 (en) 2011-03-22 2012-09-27 Pramanik Pranabes K Multi-layer sheet structure
ITPD20130051A1 (it) * 2013-03-01 2014-09-02 Laica Spa Filtro e serbatoio per macchina per la preparazione di bevande calde
ITPD20130326A1 (it) 2013-11-28 2015-05-29 Laica Spa Cartuccia filtrante per macchina per la preparazione di bevande
PL2979593T3 (pl) * 2014-08-01 2018-01-31 Laica Spa Wkład filtracyjny do maszyny do przygotowania napojów
WO2017093053A1 (fr) * 2015-12-04 2017-06-08 Koninklijke Philips N.V. Ensemble filtre à utiliser dans un récipient de fluide d'un appareil ménager
CN107997579B (zh) * 2016-11-30 2023-11-28 佛山市顺德区美的饮水机制造有限公司 排水接头、排水组件和饮水设备
CN110624305A (zh) * 2018-06-22 2019-12-31 杭州科百特过滤器材有限公司 一种滤芯及包括该滤芯的过滤器的安装方法
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Also Published As

Publication number Publication date
DE19827623A1 (de) 1999-01-07
EP1340442A1 (fr) 2003-09-03
EP1340442B1 (fr) 2005-03-23
US6383375B1 (en) 2002-05-07
DE59812687D1 (de) 2005-04-28
EP1340442B2 (fr) 2009-07-29
HK1057981A1 (en) 2004-04-30
WO1999001220A1 (fr) 1999-01-14

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