EP1120080B1 - Regelungsvorrichtung für Wasserentkalkungsgerät - Google Patents

Regelungsvorrichtung für Wasserentkalkungsgerät Download PDF

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Publication number
EP1120080B1
EP1120080B1 EP01101578A EP01101578A EP1120080B1 EP 1120080 B1 EP1120080 B1 EP 1120080B1 EP 01101578 A EP01101578 A EP 01101578A EP 01101578 A EP01101578 A EP 01101578A EP 1120080 B1 EP1120080 B1 EP 1120080B1
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EP
European Patent Office
Prior art keywords
decalcifying
water
substances
regulating
brine
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.)
Expired - Lifetime
Application number
EP01101578A
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English (en)
French (fr)
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EP1120080A2 (de
EP1120080A3 (de
Inventor
Enzo Brignone
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.)
Bitron SpA
Original Assignee
Bitron SpA
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
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Application filed by Bitron SpA filed Critical Bitron SpA
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Publication of EP1120080A3 publication Critical patent/EP1120080A3/de
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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
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops

Definitions

  • the present invention relates to a regulating device which can be associated with decalcifying apparatus for softening water supplied to a domestic washing appliance.
  • apparatuses of this type comprise a first reservoir for holding substances with decalcifying properties with which the water supplied is to come into contact, and a second reservoir for holding salt.
  • the latter reservoir has a first water-inlet opening and a further opening for the outlet of brine formed as a result of the salt being dissolved in the water.
  • the operating cycle of the decalcifying apparatus provides for the decalcifying substances, which are typically ionexchange resins, to be regenerated by a through-flow of the above-mentioned brine, after a predetermined number of through-flows of supply water.
  • the decalcifying substances which are typically ionexchange resins
  • decalcifying apparatus comprises devices for regulating the volume of brine devoted to the regeneration of the decalcifying substances.
  • a considerable quantity of brine is clearly required to regenerate the exchange resins, whereas a smaller quantity suffices in regions in which the water has a low hardness.
  • the present invention relates to a regulating device having the features indicated in the preamble of claim 1.
  • a known device of this kind is disclosed in EP-A-0 000 942.
  • the object of the present invention is to provide device for regulating decalcifying apparatus.
  • the device of the invention it is thus possible to arrange, in predetermined operating conditions, for some of the water supplied not to be subjected to the decalcifying process but to retain its original hardness, thus preventing the quantity of water as a whole, used by the domestic washing appliance, from having zero hardness.
  • a regulating device for decalcifying apparatus for softening water supplied to a domestic washing appliance comprises a water-inlet duct 10 with a flow-rate meter 12 and a portion 14 with a head of air.
  • the inlet duct 10 then branches into an outlet duct 16 leading through a first outlet 18, to a reservoir for holding substances with decalcifying properties (not shown) and into a series of chambers 20 for collecting water which, with salt contained in a further reservoir, not shown, is intended to form brine for regenerating the decalcifying substances.
  • the device also comprises means for regulating the volume of brine devoted to the regeneration of the decalcifying substances, for example, in the form of a rotary selector 22.
  • a selector of this type may comprise a substantially toroidal distribution compartment in the base of which there is a plurality of circumferentially offset holes, each hole being in communication with a respective chamber 20 or with the salt reservoir.
  • a seal is also mounted movably in the toroidal compartment and comprises first and second concentrical circular portions facing the inner side wall and the outer side wall of the compartment, respectively, and at least one radial portion which joins the circular portions.
  • the seal can adopt several positions, hydraulically separating the chambers connected to the holes which are disposed on one side of each radial portion from those connected to the holes which are on the other side.
  • a respective volume of regeneration brine is thus formed in each of the positions adopted by the seal, in dependence on the number of chambers 20 which are put into communication with the salt reservoir.
  • the device comprises a further duct 24 which branches from the inlet duct 10 upstream of the air-head portion 14 and is directed towards the selector 22, from which it leads to a second outlet 26 which leads to the washing tank of the domestic appliance, without passing through the reservoir holding the decalcifying substances.
  • the selector 22 is adjusted so as to bring about the formation of a volume of regeneration brine which is suitable with regard to the hardness of the water in the locality in which the domestic appliance is installed.
  • This brine is directed towards the reservoir for holding the decalcifying substances, through a third outlet 28.
  • the selector 22 also generally blocks communication between the branch duct 24 and the second outlet 26, preventing the supply of non-decalcified water to the washing tank.
  • the selector 22 permits communication between the duct 24 and the second outlet 26.
  • Ideal conditions for the operation of the domestic appliance with water of low hardness are thus achieved.
  • the low volume of brine is nevertheless sufficient to perform the regeneration process, and on the other hand, the non-decalcified water flowing out of the second outlet 26 is mixed with the decalcified water, forming a mixture having a hardness which is very low, but is not zero, and which is optimal for performing the washing operations.
  • this selective shutting-off of communication between the duct 24 and the outlet 26 can be achieved by suitably positioning a radial portion of the seal relative to holes in the toroidal compartment which are in communication with the duct 24 and with the outlet 26, respectively.
  • the magnitude of the fraction of non-decalcified water introduced into the mixture depends on the geometrical characteristics of the water circuit of the device: for example, it depends on the ratio between the cross-section of the mouth 30 of the further duct 24 and a calibrated cross-section of the air-head portion 14.
  • this fraction may depend on the ratio between a cross-section of the duct 24 which is restricted by the selector 22 and a calibrated cross-section of the air-head portion 14.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stereophonic System (AREA)
  • Paper (AREA)

Claims (3)

  1. Regelvorrichtung für ein Entkalkungsgerät zum Enthärten von Wasser, das einer Haushalts-Waschmaschine zugeführt wird, wobei die Vorrichtung eine Einrichtung (22) enthält, um das Volumen einer Salzlösung zu regeln, die zur Regenerierung von entkalkenden Stoffen dient, wobei die Einrichtung (22)
    in zumindest einem Betriebszustand auch bewirkt, dass eine Menge jenes Wassers, das dem Haushaltsgerät zugeführt wird, nicht mit den entkalkenden Stoffen in Berührung kommt, und
    einen weiteren Kanal (24) enthält, der vom Wassereinlass-Kanal (10) stromaufwärts eines Luftkopfteils (14) abzweigt und zur Regeleinrichtung (22) gerichtet ist, wobei
    die Vorrichtung dadurch gekennzeichnet ist, dass die Menge des Anteils von Wasser, das mit den entkalkenden Stoffen nicht in Berührung kommt, vom Verhältnis zwischen dem Querschnitt der Öffnung (30) des weiteren Kanals (24) und einem kalibrierten Querschnitt des Luftkopfteils (14) abhängt, oder vom Verhältnis zwischen einem Querschnitt des weiteren Kanals (24), der von der Regeleinrichtung (22) eingeschränkt wird, und einem kalibrierten Querschnitt des Luftkopfteils (14) abhängt.
  2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Regeleinrichtung (22) so arbeitet, dass eine Menge jenes Wassers, das dem Haushaltsgerät zugeführt wird, nicht mit den entkalkenden Stoffen in Berührung kommt, wenn die Regeleinrichtung (22) sich in ihrer Betriebsstellung befindet, in der das Volumen der Salzlösung, die zur Regenerierung der entkalkenden Stoffe dient, auf einen der niedrigen Werte eingestellt ist, vorzugsweise auf den untersten Wert.
  3. Entkalkungsgerät, das eine Regeleinrichtung gemäß irgendeinem der bisherigen Ansprüche enthält.
EP01101578A 2000-01-28 2001-01-25 Regelungsvorrichtung für Wasserentkalkungsgerät Expired - Lifetime EP1120080B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO000083 2000-01-28
IT2000TO000083A IT1319815B1 (it) 2000-01-28 2000-01-28 Dispositivo di regolazione per apparecchio decalcificatore.

Publications (3)

Publication Number Publication Date
EP1120080A2 EP1120080A2 (de) 2001-08-01
EP1120080A3 EP1120080A3 (de) 2002-08-14
EP1120080B1 true EP1120080B1 (de) 2005-03-09

Family

ID=11457330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101578A Expired - Lifetime EP1120080B1 (de) 2000-01-28 2001-01-25 Regelungsvorrichtung für Wasserentkalkungsgerät

Country Status (4)

Country Link
EP (1) EP1120080B1 (de)
DE (1) DE60109222T2 (de)
ES (1) ES2238346T3 (de)
IT (1) IT1319815B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028770A1 (de) * 2000-06-10 2001-12-13 Aeg Hausgeraete Gmbh Wasserführendes Haushaltsgerät und Verfahren zum Einstellen des Härtegrades einer Frischwassermenge
EP3494860A1 (de) * 2017-12-06 2019-06-12 BITRON S.p.A. Steuerungssystem für ein haushaltsgerät, wasserbehandlungssystem gesteuert durch das system und programm und verfahren

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1728234A1 (de) * 1968-09-14 1972-03-09 Bosch Hausgeraete Gmbh Geschirrspuelmaschine
DE1728233A1 (de) * 1968-09-14 1972-03-23 Bosch Hausgeraete Gmbh Geschirrspuelmaschine
DE2716434C3 (de) * 1977-04-14 1981-04-09 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Geschirrspülmaschinen
DE2739145A1 (de) * 1977-08-31 1979-03-15 Hobart Corp Geraet zum wasserenthaerten fuer geschirrspuelmaschinen
FR2415449A1 (fr) * 1978-01-27 1979-08-24 Esswein Sa Dispositif d'alimentation en eau d'une machine a laver pourvue d'un adoucisseur d'eau, et machine a laver la vaisselle ou le linge munie d'un tel dispositif
DE8029987U1 (de) * 1979-11-15 1981-03-26 Industrie Zanussi S.P.A., Pordenone, Udine Dosierbehaelter mit regulierbarem volumen fuer eine geschirrspuelmaschine
DE3209500C2 (de) * 1982-03-16 1983-12-29 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Haushaltgeräte, insbesondere für Geschirrspülmaschinen
DE3209501C2 (de) * 1982-03-16 1984-01-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Haushaltgeräte, insbesondere für Geschirrspülmaschinen
ITTO980481A1 (it) * 1998-06-02 1999-12-02 T & P Spa Dispositivo per il caricamento ed il dosaggio di liquido in una macchi na di lavaggio di uso domestico.

Also Published As

Publication number Publication date
DE60109222D1 (de) 2005-04-14
DE60109222T2 (de) 2006-05-11
EP1120080A2 (de) 2001-08-01
IT1319815B1 (it) 2003-11-03
ES2238346T3 (es) 2005-09-01
EP1120080A3 (de) 2002-08-14
ITTO20000083A1 (it) 2001-07-28

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