EP2564753B1 - Dispositif d'adoucissement d'eau contenant du sel anhydre - Google Patents
Dispositif d'adoucissement d'eau contenant du sel anhydre Download PDFInfo
- Publication number
- EP2564753B1 EP2564753B1 EP12182604.4A EP12182604A EP2564753B1 EP 2564753 B1 EP2564753 B1 EP 2564753B1 EP 12182604 A EP12182604 A EP 12182604A EP 2564753 B1 EP2564753 B1 EP 2564753B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- tank
- chamber
- softening
- salt
- 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.)
- Active
Links
- 150000003839 salts Chemical class 0.000 title claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000012267 brine Substances 0.000 claims description 18
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4229—Water softening arrangements
- A47L15/4231—Constructional details of the salt container or the ion exchanger
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/007—Arrangements of water softeners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/02—Consumable products information, e.g. information on detergent, rinsing aid or salt; Dispensing device information, e.g. information on the type, e.g. detachable, or status of the device
- A47L2401/023—Quantity or concentration of the consumable product
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/09—Water level
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/18—Water softening devices
Definitions
- the present invention relates to a water-softening device for softening water supplied to an electrical household washing machine, such as a dishwasher or a washing machine for laundry purposes.
- a device of this type comprises:
- the operating cycle of this device is such that, after a predetermined number of passages of supplied water through the water-softening substances, the latter, which are typically ion exchange resins, are regenerated by the passage of a brine formed in the second tank as a result of the entry of water into this tank, which causes the dissolution of some of the salt contained therein.
- the salt tank always contains brine. Therefore, when the salt is topped up in order to restore the amount used up, the brine may overflow out of the inlet used for topping up.
- the leaked brine may be discharged through the well of the washing chamber, causing problems of corrosion of any metal parts with which it may come into contact. In the case of a washing machine, this possible discharge route does not exist, and therefore the situation becomes even more problematic.
- US 2005/224 100 discloses a water-softening device having the features disclosed in the preamble of claim 1 which follows.
- the object of the present invention is to provide a water-softening device which is improved with respect to the prior art devices, and which is, in particular, free of the drawbacks mentioned above.
- the salt contained in the corresponding tank is anhydrous, since the brine formed as a result of previous entries of water into the tank and not yet supplied to the resin tank is accumulated in the underlying chamber.
- the top-up operations are facilitated because the anhydrous salt can flow much more easily than wet salt, and does not come into contact with the pre-existing brine, thus avoiding the risk that the brine may overflow to the outside of the tank.
- the presence of a pump in the chamber discharge conduit, which is directed towards the first tank, provides a simple way of measuring the quantity of regeneration brine used.
- This pump can also overcome the effect of gravity, thus increasing the freedom of the positioning of the tanks and chamber: in particular, the first tank can be positioned at a higher level than the level of the chamber.
- the second tank and the chamber are provided with corresponding means for monitoring the water level inside them, these means producing signals which can be used for the control of the operation of the pump and the sending of the regeneration brine towards the substances with water-softening properties.
- a further object of the present invention is an electrical household washing machine comprising a water-softening device of the type described above.
- a water-softening device for softening water supplied to an electrical household appliance comprises a first tank 10, for containing substances with water-softening properties, and a casing 12 in which a second tank 14 for containing salt and a chamber 16 are formed.
- the chamber is positioned below the tank 14, from which it is separated by a porous partition placed horizontally, such as a filter 18, so as to provide a hydraulic connection.
- the second tank 14 is provided with a plurality of openings 20, communicating with a water supply conduit 22, which has a shut-off valve 24, and with a discharge conduit 26, on which a pump 28 is positioned, this conduit being directed towards the first tank 10.
- the tank 14 also has an inlet 30 for topping up the salt.
- the second tank 14 and/or the chamber 16 can be provided with means for monitoring and/or measuring the level of water and/or salt inside them.
- the second tank 14 and the chamber 16 are provided with corresponding means for monitoring the water level inside them.
- the first tank 10 is provided with a water supply conduit 32 having a shut-off valve 34 and a discharge conduit 36.
- the first tank 10 is also advantageously positioned at a higher level than the level of the chamber 16.
- the water supplied by the conduit 32 passes through the first tank 10, is softened by the resins contained therein, and is finally sent to the washing chamber of the electrical household appliance. During this step there is no flow of water through the second tank 14.
- the valve 24 is first opened (see Figure 2 , arrow 40), thus causing a flow of water in the conduit 22 towards the second tank 14.
- a brine is formed, which flows out through the filter 18 into the chamber 16, until it reaches, for example, the level 42 in the tank 14 located above, to which the chamber 16 is hydraulically connected.
- the pump 28 is then activated (see Fig. 3 , arrow 44), in such a way that the brine passes through the resins contained in the first tank 10 and regenerates them until its level in the chamber 16 falls to the point identified by the reference numeral 46.
- the pump 28 can also act as a gauge of the volume of regeneration brine, thus allowing a precise measured dose to be sent to the first tank 10.
- the operation of the pump 28 is stopped, and consequently the flow of brine through the tank 10 ceases, causing the operation of regenerating the resins contained in the tank 10 to be terminated.
- the salt remaining in the tank 14 is completely anhydrous. Consequently, when the salt becomes depleted, it can be topped up through the inlet 30, this procedure being aided by the greater fluidity of the salt, without any risk of leakage of the brine, which is contained in the underlying chamber 16, separately from the salt.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
Claims (6)
- Dispositif d'adoucissement d'eau destiné à adoucir l'eau alimentant un appareil électroménager, comprenant :- un premier réservoir (10) destiné à contenir des substances ayant des propriétés d'adoucissement d'eau, et- un second réservoir contenant un sel (14), présentant au moins une ouverture d'admission d'eau (20), etune chambre (16) destinée à contenir de la saumure formée suite à la pénétration d'eau dans le second réservoir (14) et à la dissolution du sel contenu dans celui-ci et destiné à régénérer lesdites substances d'adoucissement d'eau, ladite chambre (16) étant raccordée de manière hydraulique au second réservoir (14) et étant pourvue d'un conduit d'évacuation (26) dirigé vers ledit premier réservoir (10), ledit conduit d'évacuation (26) étant pourvu d'une pompe (28),
dans lequel ledit second réservoir (14) et ladite chambre (16) sont formés à l'intérieur d'un carter unique (12), à l'intérieur duquel ils sont séparés par une cloison poreuse, ledit dispositif d'adoucissement d'eau étant caractérisé en ce que ladite cloison poreuse est placée horizontalement, de sorte que ladite chambre (16) est située en dessous du second réservoir (14), et en ce que ledit premier réservoir (10) est situé à un niveau plus élevé que le niveau de ladite chambre (16). - Dispositif selon la revendication 1, dans lequel ladite cloison poreuse est un filtre (18).
- Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit second réservoir (14) et ladite chambre (16) sont pourvus de moyens respectifs permettant de surveiller le niveau d'eau à l'intérieur.
- Dispositif selon l'une quelconque des revendications 1 ou 2 précédentes, dans lequel ledit second réservoir (14) et/ou ladite chambre (16) sont pourvus de moyens permettant de surveiller et/ou de mesurer le niveau d'eau et/ou de sel à l'intérieur de ceux-ci.
- Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite pompe (28) joue également le rôle de jauge du volume de saumure formé suite à la pénétration d'eau dans le second réservoir (14) et à la dissolution du sel contenu dans celui-ci et destiné à régénérer lesdites substances d'adoucissement d'eau dans le premier réservoir (10).
- Appareil électroménager de lavage comprenant un dispositif d'adoucissement d'eau selon l'une quelconque des revendications précédentes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12182604T PL2564753T3 (pl) | 2011-09-02 | 2012-08-31 | Urządzenie zmiękczające wodę zawierające bezwodną sól |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000788A ITTO20110788A1 (it) | 2011-09-02 | 2011-09-02 | Dispositivo decalcificatore contenente sale anidro |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2564753A2 EP2564753A2 (fr) | 2013-03-06 |
EP2564753A3 EP2564753A3 (fr) | 2017-12-27 |
EP2564753B1 true EP2564753B1 (fr) | 2020-11-25 |
Family
ID=44899197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12182604.4A Active EP2564753B1 (fr) | 2011-09-02 | 2012-08-31 | Dispositif d'adoucissement d'eau contenant du sel anhydre |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2564753B1 (fr) |
CN (1) | CN102976444A (fr) |
IT (1) | ITTO20110788A1 (fr) |
PL (1) | PL2564753T3 (fr) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234527C1 (de) * | 1982-09-17 | 1984-01-19 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Wasserenthärtungsvorrichtung für Haushalt-Geschirrspülmaschinen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1250189A (fr) * | 1967-11-15 | 1971-10-20 | ||
DE2548605C3 (de) * | 1975-10-30 | 1980-02-21 | Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart | Behälter zur Aufnahme von Regeneriermitteln für Wasserenthärter von Geschirrspülmaschinen |
DE3328382C2 (de) * | 1983-08-05 | 1985-09-26 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Enthärtungseinrichtung für Geschirrspülmaschinen |
DE9017780U1 (de) * | 1990-12-11 | 1992-01-23 | Bosch-Siemens Hausgeräte GmbH, 8000 München | Haushalt-Geschirrspülmaschine |
DE4100067C2 (de) * | 1991-01-03 | 1996-06-20 | Bosch Siemens Hausgeraete | Salzbehälter für Enthärtungseinrichtungen von Haushaltgeräten, insbesondere Geschirrspülmaschinen |
DE4142697A1 (de) * | 1991-12-21 | 1993-07-01 | Miele & Cie | Wasserenthaertungseinrichtung fuer haushaltgeraete |
NZ518288A (en) * | 2002-04-10 | 2004-09-24 | Fisher & Paykel Appliances Ltd | Washing appliance water softner |
DE102004021197A1 (de) * | 2004-04-29 | 2005-11-24 | Aweco Appliance Systems Gmbh & Co. Kg | Vorrichtung zur Wasseraufbereitung in Haushaltsmaschinen |
ITTO20060269A1 (it) * | 2006-04-11 | 2007-10-12 | Bitron Spa | Dispositivo integrato di alimentazione e trattamento di acqua per macchina lavastoviglie |
CN101570932B (zh) * | 2008-04-29 | 2012-06-27 | 海尔集团公司 | 一种具有改进水路的洗衣机 |
-
2011
- 2011-09-02 IT IT000788A patent/ITTO20110788A1/it unknown
-
2012
- 2012-08-31 PL PL12182604T patent/PL2564753T3/pl unknown
- 2012-08-31 CN CN2012103209109A patent/CN102976444A/zh active Pending
- 2012-08-31 EP EP12182604.4A patent/EP2564753B1/fr active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234527C1 (de) * | 1982-09-17 | 1984-01-19 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Wasserenthärtungsvorrichtung für Haushalt-Geschirrspülmaschinen |
Also Published As
Publication number | Publication date |
---|---|
PL2564753T3 (pl) | 2021-05-31 |
EP2564753A3 (fr) | 2017-12-27 |
ITTO20110788A1 (it) | 2013-03-03 |
CN102976444A (zh) | 2013-03-20 |
EP2564753A2 (fr) | 2013-03-06 |
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