FR2516070A1 - WATER SOFTENER FOR HOUSEHOLD APPLIANCES, IN PARTICULAR FOR DISHWASHER - Google Patents

Abstract

WATER SOFTENER FOR HOUSEHOLD APPLIANCES, ESPECIALLY FOR DISHWASHER, WHICH INCLUDES AN ION EXCHANGER CONTAINER AND A WATER STORAGE TANK, WHICH CONSISTS OF SEVERAL ROOMS LINKED BETWEEN THEM TO ALLOW THE PASSAGE OF THE LIQUID, AND ONE OF WHICH IS CONNECTED TO AN OUTLET DUCT GOING TO A SALT CONTAINER. THE WATER STORAGE TANK 1 CONTAINS AT LEAST TWO BEDROOMS 2, 3 CONNECTED TO BETWEEN BY A SIPHON 9 THAT CAN BE DISMORCED BY AERATION.

Description

16070

  The present invention relates to a water softener for household appliances, particularly for dishwashers, which comprises an ion exchange container and a reservoir.

  of water storage, which consists of several chambers

  connected to each other so as to allow the passage of the liquid, and one of which is connected to a

  exit overlooking a salt container.

  Such a water softener is known from the German patent application 28 53 773. The water storage tank which is used in the case of this softener consists of two chambers, one of which, directly

  supplied with water, is connected to the salt container by means of

  The other chamber of the water storage tank, which is open only to

  bottom, is connected to the first chamber so as to allow

  put the passage of the liquid In addition, this second chamber

  In the case of this known water softener, it is therefore possible to determine the

  amount of saline solution or brine that must be

  troduced from the salt container into the ion exchange vessel for the regeneration of its charge, in that it is arranged to introduce into the salt container from the water storage tank, ie only the water stored in the first chamber, the valve then being closed, or in addition, the

  valve being open, the water contained in the second chamber

  The volume of the first chamber of the storage tank

  water is then selected in such a way that it suffices

  after the completion of each program, to

  Ion exchange charge in almost all household dishwashers used in Central Europe It is only in the small number of appliances used in areas where water has extreme hardness that it is necessary to introduce 2 - introduce in the ion exchange container, to ensure regeneration, a quantity of saline solution or brine

  corresponding to the dosing volume of the two chambers of the

  water storage tank In most washers

  used in areas where the water has a normal hardness, the risk is that in the event of leakage of the valve, the second chamber of the water storage tank is also

  filled with water, which results in an overdose of the

  which is not desirable, nor for economic reasons

  from the point of view of protecting the environ-

  ment. The subject of the present invention is, in the case of a water softener of the type mentioned at the beginning of this

  patent application, to obtain that not only the consumer

  saline solution or brine does not increase when

  the metering device provided in the storage tank

  age of water is inoperative, but even to make sure

it diminishes.

  The present invention solves this problem by the fact that the water storage tank comprises at least two chambers interconnected by a siphon

defushable by ventilation.

  This is advantageous to the extent that the siphon

  is only activated when the dosage for the preparation

  saline solution must be carried out from the two chambers of the water storage tank, for the small proportion of units installed in regions where the water has extreme hardness In regions where the hardness of the water is normal, the siphon is, however,

  aerated, that is to say rendered inoperative, so that the preparation

  saline solution is carried out with the volume of water of a single chamber When the siphon, due to a lack of tightness or a control error, is ventilated and thus rendered inoperative in regions where the hardness

  water is large, this incident is only of interest

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minor dishwashers.

  An additional feature of the water softener provided by the present invention provides that the two chambers of the water storage tank are arranged side by side and have a common partition.

that the siphon spans.

  According to another characteristic of the present invention,

  vention, the siphon has an aeration pipe that is

connected to its bent section.

  In this case, and according to another characteristic of

  the present invention, the ventilation duct extends

  than the front of the appliance.

  According to another characteristic of the present invention,

  vention, the aeration line has, at its free end, a valve, a plug, a section

  opening wall or equivalent device.

  The present invention will be better understood using

  of the detailed description of an embodiment taken

  as a non-limitative example and illustrated by the

  nexé, which is a sectional view of a shallow tank, with several chambers The water storage tank, which has the reference numeral 1, has two chambers, open upwards, which bear the numerical references 2 and 3 The water storage tank 1 is further provided with an overflow chute which is separated from the chamber 3 by a wall 4. From this chute, an outlet pipe 6 leads to the tank of washing a dishwasher that is not otherwise represented. The two rooms 2 and 3 of the storage tank

  of water 1, which are located side by side, are

  fitted with a partition 7 whose height is less than that of the wall 4 which separates the chamber from the overflow channel 5, the wall of which the upper end constitutes an overflow or overflow threshold 8 The partition 7 is straddled by a siphon-9 whose two branches 10 and 4-

  1 extend to near the bottom 12 of the two chambers

  2 and 3 The bent portion 13 of the siphon 9 is located

  below the level given by the overflow or overflow threshold 8 of the wall 4 A ventilation duct 14, of small section, is connected to the bent portion 13 of the phonograph 9 and advantageously leads to the face front of the dishwasher, o this pipe has, at its end

  free, a valve of easy access (not shown).

  This valve can also be made in the form of a closure plug, or an opening wall section, or a similar device of the air duct 14, which is otherwise closed. bottom, an outlet pipe 15 goes from the chamber 2 of the water storage tank 1 to the salt container of the water softener

  of the dishwasher, the rest of which is not

  The salt container is connected via a salt solution line to the ion-exchange vessel of the water softener. On the outlet side, the container

  ion exchanger is connected to the wash tub of the washer

  dishwashing A valve controlled by the com-

  program to the dishwasher, which is intended for

  to control the process of regeneration of the charge of the

  ion exchange container, is installed in the pipe

  15 and / or in the saline line.

  The water storage tank 1 is used in the following manner for the regeneration of the charge of the ion exchange vessel:

  During the arrival of fresh water in the tank of the-

  From the dishwasher, the water storage tank 1 is also supplied with water in the direction of the arrow 16. During this operation, it is first of all the chamber

  3, then room 2, which is filled with water,

  that the pre-established level has been reached by the overflow or overflow threshold 8 of the wall 4 The water which continues to arrive in excess flows according to the arrow 17 over said overflow threshold 8 and arrives in the dishwasher-washing tub (arrow 18) passing

  by the overflow chute 5 and the outlet pipe 6.

  The water accumulated in the two chambers 2 and 3 of the reservoir

  of water storage 1 is first of all retained by the

  closed poppet provided in the outlet conduit 15 and / or in the saline solution conduit, between the container

  salt and ion exchange container, and can not flow.

  In the case of dishwashers used in areas where water has a low hardness, a small

  amount of saline or brine is sufficient to regenerate

  However, when the water reaches extreme degrees of hardness, it is necessary to

  necessary to introduce a larger quantity of

  salt in said ion exchange vessel to initiate the regeneration process, during which

  there is no additional water supply in the tank.

  see water storage 1, it releases the output of the accumulated water, through the outlet pipe 15, to the salt container (arrow 19) During this phase, it is first of all the chamber 2 which empties, and the volume of water which is above the partition 7 (phantom line) also flows In regions where the water has a low hardness, the aeration pipe 14, or

  the valve provided at the end of this pipe, is

  green, so that the siphon 9 is ventilated and thus defused, that is to say rendered inoperative The water in the chamber 3, below the line in phantom, remains in the reservoir of water storage 1 Water that

  flows through the exit pipe 15 expelled from the

  salt container saline solution or brine that reaches

  in the ion exchange vessel, where it causes the

  generation of the exchange charge contained in the recipe

  tainer. In regions where water has a high degree of hardness,

  the ventilation duct 14 is closed, so that the seat

  phon 9 can come into action while the tank of 6-

  storage of water 1 is empty at the beginning of the

  regeneration process, chamber 2 and chamber 3 of the

  1 water storage tank therefore empty at a time.

  Only a small residual amount of water remains on the bottom 12 of the chamber 3. The water accumulated in the chambers 2 and 3 then expels from the salt container a large amount of water.

  amount of saline solution or brine If a defect in

  If it were to occur at the valve of the ventilation duct 14, in dishwashers installed in regions where the water has a high hardness, the charge of the ion exchange vessel would, in any event, be regenerated by saline, although this one is

then in small quantities.

  In a variant of the embodiment described, it is possible to provide the storage tank with

  water 1 of additional rooms, which are again

  calves connected together by a siphon which can be

  By making this siphon work, we can increase

  stepwise the amount of salt solution required.

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Claims (5)

  1. Water softener for household appliances, particularly   dishwashing machine, which includes a container for   ion generator and a water storage tank (1), the   which consists of several chambers (2, 3) connected to each other so as to allow the passage of the liquid, and of which   one (2) is connected to an output pipe (15) which   on a salt container, characterized in that the   water storage tank (1) has at least two   chambers (2, 3) interconnected by a siphon (9) which crackable by aeration.   2. Water softener according to claim 1,   characterized in that the two chambers (2, 3) of the water storage tank (1) are arranged side by side and   comprise a common partition (7) that the siphon (9) straddles   be. 3. Water softener according to any one of   Claims 1 or 2, characterized in that the siphon (9)   has an air duct (14) which is connected to its section bent.   4. Water softener according to claim 3,   characterized in that the vent pipe (14) extends   to the front of the appliance.   5. Water softener according to any one of   3 or 4, characterized in that the driving   aeration (14) has at its free end a   pope, a sealing plug, an opening wall section te, or an equivalent device.