EP0003451B1 - Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät - Google Patents

Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät Download PDF

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Publication number
EP0003451B1
EP0003451B1 EP19790400023 EP79400023A EP0003451B1 EP 0003451 B1 EP0003451 B1 EP 0003451B1 EP 19790400023 EP19790400023 EP 19790400023 EP 79400023 A EP79400023 A EP 79400023A EP 0003451 B1 EP0003451 B1 EP 0003451B1
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EP
European Patent Office
Prior art keywords
water
resin
regeneration
reservoir
softener
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
Application number
EP19790400023
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English (en)
French (fr)
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EP0003451A1 (de
Inventor
Laurent Didier
Camille Barbier
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.)
Esswein SA
Original Assignee
Esswein SA
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 Esswein SA filed Critical Esswein SA
Publication of EP0003451A1 publication Critical patent/EP0003451A1/de
Application granted granted Critical
Publication of EP0003451B1 publication Critical patent/EP0003451B1/de
Expired legal-status Critical Current

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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

Definitions

  • the present invention relates to a device for supplying water to a washing machine provided with a water softener, and machine for washing dishes or laundry provided with such a device.
  • the second solenoid valve is opened to fill the overflow tank with raw water which is returned to the salt container to be transformed into regenerative saline solution before it enters in the ion exchanger to perform this regeneration.
  • a water supply to a washing machine or dishwashing machine equipped with a water softener should preferably provide at least three of the following functions: that of a softened water supply, that of regenerating the resin of the softener and that of a water supply coming from the distribution network.
  • water supply devices are already made. These known devices, designed in one piece, receive, under command, network water and direct it to the user organs of the machine. However, in these known devices, frequently one or two of the three water supply functions mentioned above are fulfilled, the other functions being provided by independent devices. For example, in certain known devices, the supply of softened water and the regeneration of the softener resin are ensured, but the direct supply of water to the network is made independently. As a result, in manufacturing, such a water supply circuit is still complicated and expensive.
  • the aim of the present invention is to avoid these drawbacks and makes it possible to produce an improved and economical water supply device, formed in one piece, ensuring not only the three water supply functions mentioned above, but also a adjusting the regeneration of the water softener resin.
  • the invention also relates to a dishwashing machine or the washing machine provided with such a device.
  • a device for supplying water to a dishwashing machine or to the washing machine provided with a resin water softener and a resin regenerating salt pot, is characterized in that , in fulfilling at least the functions of supplying water to the network, supplying softened water, supplying water for regenerating the resin of the softener and regulating this regeneration of the resin, this device for water supply, made in one piece, comprises at least firstly, three horizontally aligned compartments, communicating with each other, and with the outside air forming an inlet chamber, an intermediate chamber and a reservoir, secondly, two inlet nozzles mounted with their ends opening into this inlet chamber and with their converging axes downstream, one of which crosses the communication openings of these three compartments, thirdly, two pipes extending respectively These inlet and intermediate chambers in order to put them in communication with the tank of the machine, fourthly, in this tank, a device for adjusting the water level which conditions the regeneration of the resin of the softener. , and a zigzag pipe
  • It can also include a divergent convex outlet nozzle, mounted in the inlet chamber, with its axis coinciding with the axis of the inlet nozzle, the one whose axis does not pass through the communication openings of these three compartments , and with its outer end adapted to be connected to this softener.
  • a divergent convex outlet nozzle mounted in the inlet chamber, with its axis coinciding with the axis of the inlet nozzle, the one whose axis does not pass through the communication openings of these three compartments , and with its outer end adapted to be connected to this softener.
  • a dishwashing machine 1 comprises an envelope or bodywork 2 provided with a door 3 and housing a tank 4 in which various usual dishwashing operations are carried out.
  • the operating members of the machine 1 which are members of known types are not shown.
  • the machine 1 is supplied with water by a circuit 5, diagrammatically illustrated in FIG. 1.
  • This water supply circuit 5 comprises a water inlet 6 from the distribution network, a water supply device 7, a softener of water 8, a regenerating salt container 9 and a non-return valve 10 which prevents the return of water from the softener 8 into the salt container 9.
  • the supply circuit 5 of the machine 1 ensures the following functions: that of a softened water supply, that of a water supply for regenerating the resin of the softener 8, that of a direct supply of water to the distribution network and that of an adjustment of this regeneration of the softener resin 8.
  • the water supply device 7 comprises according to the invention, in a body made in one piece, three horizontally aligned compartments communicated ant between them and with the outside air, forming an inlet chamber 15 an intermediate chamber 18 and a reservoir 19, two inlet nozzles 11 and 12 mounted so as to have their converging longitudinal axes 13 and 14 downstream and their ends opening into the inlet chamber 15.
  • This chamber 15 is first extended by a pipe 16 which, by a pipe 38 leads to the tank 4, then provided, at a certain distance and in alignment with the axis 13 of one of these inlet nozzles, of a diverging convergent outlet nozzle 17 leading by a pipe 41 to the softener 8, and finally, along the axis 14 of the second 12 of these inlet nozzles , in communication successively with an intermediate chamber 18 and a reservoir 19.
  • the intermediate chamber 18 is placed in the air in its upper part by a duct 20, and, to be in communication with the tank 4, extended by a pipe 21 which opens through an opening 22 in the last section 23 of the cana connection 16 and of the pipe 38, the opening 22 being formed in a dividing wall between the pipes 16 and 21.
  • a deflector 24 cutting the axis 14 of the nozzle 12 is formed at a certain distance from the inlet 25 of the tank 19 to break the jet of water coming from this nozzle 12 along this axis 14 to fill this tank 19.
  • the tank 19 is limited on the side of the inlet nozzles 11 and 12 by a substantially vertical partition 26, adjoining the pipe 21.
  • the upper edge of the partition 26 which forms with the wall of the vent pipe 20, the inlet 25 of the tank 19, is located below the level of the axis 14 of the nozzle 12.
  • the tank 19 is further limited on the side opposite to the deflector 24, by a substantially vertical partition 27 which constitutes with the external lateral wall of the water supply device 7 a conduit 28.
  • the upper edge of the partition 27 is higher than that of the partition 26 and forms with the ceiling of this device 7 an opening 29 which ass ure a vent to the outside of the conduit 28, through an opening 30 made in this ceiling.
  • the partition 26, the intermediate chamber 18 and the pipe 21 form an overflow system of the tank 19.
  • This system constitutes a water level limiter in the tank 19.
  • the tank 19 comprises at its bottom a zigzag pipe limiting flow 31 which, emerging in the last section 32 of the conduit 28, ensures, according to a predetermined flow, a transfer of the water from the reservoir 19 into the regenerating salt container 9, through a pipe 33.
  • the zigzag pipe 31 is constituted by a baffle defined by several plates 34 staggered and spaced from each other.
  • the zigzag pipe 31 thus comprising a great length and an elongated cross section, allows in the transfer of water to avoid the risks of obstruction which are usually encountered in a known flow limiter which is provided with an orifice low section flow.
  • the flow rate through the zigzag pipe 31 is chosen to obtain an efficient regeneration of the softener resin 8.
  • Usually an efficient regeneration of the resin requires that the flow of brine be slow on the order of 0.2 liter per minute.
  • the tank 19 is further provided with a device 35 for adjusting the water level which conditions the regeneration of the resin.
  • This device 35 is formed of a siphon constituted by two concentric sliding tubes 36 and 37.
  • the inner tube 36 made integral with the bottom of the tank 19 ensures free communication between the inside of this tank 19 and the tank 4, for example through the last section of the pipe 21, the opening 22, the last section of the pipe 16 and the pipe 38.
  • the outer tube 37 sliding along the tube 36 is closed at its upper end and connected to a position control system of the known type schematically illustrated at 39, to ensure the height adjustment and the holding in position of the outer tube 37 relative to the bottom of the tank 19.
  • the flow rate of the siphon constituting the device 35 is determined by the amount of play between the two concentric tubes 36, 37.
  • the upper end of the inner tube 36 is at the same level from the upper edge of the partition 26.
  • the water level in the tank 19 is that of the upper end of this inner tube 36 i.e. that defined by the overflow system 18-26.
  • the outer tube 37 slides on the inner tube 36, the height of water in the tank 19 is determined by the level where the lower end of this outer tube 37 is in this tank 19.
  • a solenoid valve 40 is opened which feeds the nozzle 11.
  • the jet of water leaving the nozzle 11 passes through the inlet 15, enters the outlet nozzle 17 converging diverging and in the pipe 41, passes through the softener 8 and enters, through the conduit 42, into the tank 4 (FIG. 1).
  • the space separating the inlet 11 and outlet 17 nozzles, constituted by the chamber 15, makes it possible to avoid a return of water in the distribution network when a depression accidentally occurs in the latter.
  • the "convergent and divergent" shape of the bore of the outlet nozzle 17 facilitates the reception of the water jet coming from the nozzle 11 and contributes to the conversion of the flow speed of the water jet into pressure facilitating the crossing of the softener by this water.
  • the water supply to the salt container 9 for the regeneration of the resin of the softener 8 is effected by an opening of a solenoid valve 43 which supplies the nozzle 12, the solenoid valve 40 being closed.
  • the water jet leaving the inlet nozzle 12 passes through the inlet chamber 15, the intermediate chamber 18, the inlet 25, enters the tank 19 and is crushed against the deflector 24.
  • the flow of the outgoing jet of the nozzle 12 is chosen to be greater than the sum of the flows of the zigzag pipe 31, flow limiter, and of the water level adjustment device 35.
  • the overflow of the tank 19 passes the upper edge of the partition 26, enters the pipe 21, the opening 22, the section 23 of the pipe 16 and the pipe 38 and pours into the tank 4 of the machine 1 while in the tank 19, part water escapes through the water level adjustment device 35, the opening 22, the section 23 of the pipe 16 and the pipe 38 to pour into the tank 4 of the machine 1, and a portion water flows through the zigzag pipe 31, the section 32 of the pipe 28 and the pipe 33 to enter the regenerated salt container ur 9.
  • the water level in the reservoir 19 remains constant after the operation of the overflow system 18-26, and the water supply rate of the salt container 9 which is a function of the water level in this tank 19, is also constant and its value has been determined to obtain an efficient, optimal regeneration of the resin of the softener 8.
  • the water level in the tank 19 is determined by the level of the lower end of the outer tube 37 of the device 35, this level being adjustable by means of the control system 39
  • the water level in the tank is that of the overflow system constituted by the upper edge of the partition 26, and in this case, a maximum water content of tank 19 passes into the regenerating salt container 9.
  • the quantity of water sent to the salt container 9 is adjusted and therefore the regeneration of the resin of the softener 8 is helped to regulate the water level adjustment device 35 thus constitutes a device for regulating the regeneration of the softener resin 8.
  • the water supply device 7 described above there is obtained both a precise adjustment of the quantity of water for regenerating the resin and an adequate and constant flow of regeneration water for the almost total duration of this supply of resin regeneration water.
  • the resin regeneration adjustment function is provided by a device, independent of the water supply device, in which the quantity of resin regeneration water and the flow rate d regeneration water depend on the network water pressure which is often irregular. The regeneration of the resin and therefore the softening of the water are therefore often irregular.
  • the two solenoid valves 40 and 43 are opened simultaneously. Since, according to an important characteristic of the invention, the axes 13 and 14 of the nozzles 11 and 12 converge downstream , the water jets coming out of these nozzles collide.
  • the jet of the nozzle inlet 12 prevents the nozzle jet 11 from reaching the outlet nozzle 17 and conversely the jet from the nozzle 11 hinders the flow of the jet from the inlet nozzle 12 to the reservoir 19.
  • the water from the collision jets of these two nozzles 11 and 12 in the inlet chamber 15 consequently fall into the pipe 16 and, through the pipe 38, pours into the tank 4 of the machine 1. The latter is thus directly supplied with water of the distribution network.
  • the improved water supply device 7 above contributes to giving the water supply circuit of the machine a relatively simple structure, and at the same time makes it possible not only to supply the machine 1, distribution network water, and softened water, but also an efficient and adequate regeneration of the resin of the softener 8.
  • the device 7 allows, in fact by a precise adjustment of the quantity of regeneration water and a chosen flow rate of practically constant regeneration water, to obtain a softening adapted to the different qualities of water, very calcareous waters in particular requiring relatively deep softening.
  • the device 44 for adjusting the water level which conditions the regeneration of the resin of the softener 8 consists of a tube 45 which can pivot about a horizontal axis 46, fixed relative to the bottom of the tank 19, and communicates with the tank 4 of the machine, through a pipe connection 47, the last section of the pipe 21, the opening 22, the last section 23 of the pipe 16 and the pipe 38.
  • the tube 45 In its vertical position, the tube 45 has its upper end being at the same level as the upper edge of the partition 26.
  • the water level in the tank 19 depends on the level of the point where the upper end of the tube 45 is located.
  • the tube 45 is pivoted in the opposite direction, that is to say from its horizontal position to its vertical position.
  • the tube 45 can be pivoted by a control system of known type.
  • the device 48 for adjusting the water level which conditions the regeneration of the resin of the softener 8 consists of a tap or adjustable opening valve, for example, a ball valve. By acting on this tap, the water level in the tank 19 is adjusted and, consequently, the regeneration of the resin of the softener 8.
  • the other elements of the water supply device 7 of the second and third embodiments are identical to those of the first exemplary embodiment illustrated in FIG. 2.

Claims (6)

1. Wassereinspcisungsvorrichtung für Wasch-oder Geschirrspülmaschinen, die mit einem Austauscherharz-Wasserenthärter (8) und einem Harzregeneriersalzbehälter (9) versehen sind, und die Wasserzufuhrdüsen (11, 12) mit konvergierenden Achsen und einen mit einem Überlauf versehenen Wasserbehälter (19) aufweist, dadurch gekennzeichnet, daß die Wassereinspeisungsvorrichtung (7), welche mindestens sowohl die Funktion der Wasserversorgung aus dem Wasserleitungsnetz, der Lieferung von enthärtetem Wasser, der Lieferung von Wasser zum Regenerieren des Harzes des Enthärters und der Regelung dieser Regenerierung des Harzes erfüllt, einstückig ausgebildet ist und erstens drei waagerecht schnurgerade ausgerichtete Abteilungen (15, 18, 19) aufweist, die untereinander und mit der Außenluft in Verbindung stehen und eine Einlaßkammer (15), eine Zwischenkammer (18) und einen Wasserbehälter (19) bilden, zweitens zwei Einlaßdüsen (11, 12), die so angeordnet sind, daß ihre Enden in der Einlaßkammer (15) münden und ihre Achsen stromabwärts konvergieren, wobei eine der Achsen durch die Verbindungsöffnungen der drei Abteilungen (15, 18, 19) geht, drittens zwei Leitungen (16, 21), die jeweils die Einlaßkammer (15) und Zwischenkammer (18) verlängern, um sie mit dem Bottich (4) der Maschine (1) zu verbinden, viertens in diesem Wasserbehälter (19) eine Wasserstandsregelvorrichtung (35), welche die Regenerierung des Harzes des Enthärters steuert, und eine Zickzack-Leitung (31) als Durchlaßbegrenzer, die im Boden des Wasserbehälters (19) ausgebildet ist und ihn mit dem Harzregeneriersalzbehälter (9) verbindet, aufweist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die den Durchfluß begrenzende Zickzack-Leitung (31) aus einer Drosselvorrichtung besteht, die durch mehrere in Abstand voneinander versetzt angeordnete Platten (34) definiert ist.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der als Wasserbehälter (19) dienenden Abteilung die Wasserstandsregelvorrichtung (35), welche die Regenerierung des Harzes des Enthärters steuert, aus einem Siphon besteht, der von zwei konzentrischen, gegeneinander verschiebbaren Rohren (36, 37) gebildet ist, von denen das Innenrohr (36) am Boden des Wasserbehälters (19) befestigt ist und durch diesen Boden mit dem Bottich (4) in Verbindung steht und das Außenrohr (37) an seinem oberen Ende geschlossen und mit einem Steuersystem (39) zur Regelung seiner Stellung verbunden ist.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der als Wasserbehälter (19) dienenden Abteilung die Wasserstandregelvorrichtung (44), welche die Regenerierung des Harzes des Enthärters steuert, aus einem Rohr (45) besteht, das um eine waagerechte Achse (46) schwenkbar, bezüglich des Bodens dieses Wasserbehälters feststehend und durch diesen Boden hindurch mit dem Bottich (4) in Verbindung ist.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der als Wasserbehälter (19) dienenden Abteilung die Wasserstandsregelvorrichtung (48), welche die Regenerierung des Harzes des Enthärters steuert, aus einem Hahn oder Ventil mit regelbarer Öffnung, wie einem Kükenhahn, besteht..
6. Waschmaschine oder Geschirrspülmaschine, dadurch gekennzeichnet, daß sie eine Wassereinspeisungsvorrichtung (7) nach einem der Ansprüche 1 bis 5 aufweist.
EP19790400023 1978-01-27 1979-01-11 Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät Expired EP0003451B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7802341A FR2415449A1 (fr) 1978-01-27 1978-01-27 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
FR7802341 1978-01-27

Publications (2)

Publication Number Publication Date
EP0003451A1 EP0003451A1 (de) 1979-08-08
EP0003451B1 true EP0003451B1 (de) 1981-04-29

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EP19790400023 Expired EP0003451B1 (de) 1978-01-27 1979-01-11 Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät

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EP (1) EP0003451B1 (de)
DE (1) DE2960281D1 (de)
ES (1) ES477149A1 (de)
FR (1) FR2415449A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9109497U1 (de) * 1991-07-31 1991-09-26 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307742A (en) * 1978-11-25 1981-12-29 Schrott Friedrich Wilhelm H Ion exchanger regeneration water supply control unit
DE3144866C1 (de) * 1981-11-11 1983-04-14 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthaertungseinrichtung fuer Haushaltgeraete,insbesondere fuer Geschirrspuelmaschinen
DE3239226C1 (de) * 1982-10-22 1984-01-19 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Geschirrspülmaschine
DE3316685C2 (de) * 1983-05-06 1985-11-07 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Haushalt-Geschirrspülmaschine
FR2652254A1 (fr) * 1989-09-22 1991-03-29 Esswein Sa Lave-vaisselle muni d'un condenseur d'humidite.
IT1319815B1 (it) * 2000-01-28 2003-11-03 Bitron Spa Dispositivo di regolazione per apparecchio decalcificatore.
DE10028770A1 (de) * 2000-06-10 2001-12-13 Aeg Hausgeraete Gmbh Wasserführendes Haushaltsgerät und Verfahren zum Einstellen des Härtegrades einer Frischwassermenge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018493A1 (de) * 1970-04-17 1971-10-28 Bosch Hausgeraete Gmbh Geschirrspülmaschine
DE2219888B2 (de) * 1972-04-22 1976-05-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wasserzulaufvorrichtung fuer wasch- und geschirrspuelmaschinen
DE2232020B2 (de) * 1972-06-30 1974-05-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Flüssigkeitsverteilelement für Wasch- und Geschirrspülmaschinen
DE7232474U (de) * 1972-09-01 1973-05-03 Bosch R Hausgeraete Gmbh Geschirrspulmaschine mit einem Spulbehalter und einem Ionenaustauscher mit Fnschwasserzufuhr über eine freie Luftstrecke und einen Diffusor
DE2417731A1 (de) * 1974-04-11 1975-10-30 Aweco App & Geraetebau Kg Vorrichtung zur rueckflussverhinderung, insbesondere fuer wasserenthaertungseinrichtungen
DE2502983C2 (de) * 1975-01-25 1982-09-09 Euro Hausgeräte GmbH, 6680 Neunkirchen Zulaufbelüfter für Geschirrspülmaschinen und dergl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9109497U1 (de) * 1991-07-31 1991-09-26 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De

Also Published As

Publication number Publication date
ES477149A1 (es) 1980-06-16
FR2415449A1 (fr) 1979-08-24
DE2960281D1 (en) 1981-08-06
FR2415449B1 (de) 1980-08-29
EP0003451A1 (de) 1979-08-08

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