DE1800092A1 - Dishwasher with devices for water softening and regeneration - Google Patents

Description

Dishwasher with devices for V @ sser @@ th @ rten and @@@ Regenerating Gege @ etand of the invention is a dishwasher with devices @@@ @ water softening and regeneration, w @ with the water by exchanging them is softened. der p @ riedi @ ch, @. B. with Kechsals, is regenerated.

It is bek @@@ t, dishwashers with a vasserent- @ ärtungs- and @@ g @@ erierverrichtung su @ sur @ sten. The use of the soft, alse @@ hardened Wesser bri @ gt at @elchen @@ schi @@@ beschlichen distributions: Kalkmieder @ chlege and Bottle formation on dishes and glasses is avoided, the consumption of detergents is reduced and the machine is shut down, e.g. B. talks the @ ei @ schlunge @icht.

@@@ @@ thärtes vo @ water for the dishwasher @ are activities of the input @ designated kind in @ numerous versions b @ k @@@ t. @@@ at this one Performing @@ and also at the state of the invention @@ ge @ andte @@@@@@@ ustsuschverfahres bar @@@ ensure that a @@ nen @@@ t @@@ ch-Filtsr @@ sse, through the hard @asser is headed, C @ - and Kg-Iomen.

So the hardness components of the water, absorbs and z. B.

Releases Na ions, After their capacity has been exhausted, the ion exchange filter material is removed be regenerated, and @was z. B.

through a treatment with Kochsals (NaCl), with me doing the opposite Process is playing.

The problem is, on the one hand, the softening and regeneration devices to be trained in dishwashers in such a way that at one point a possible simple and "@arrensafe" operation and function is made possible and that other times the dishwasher is not also significantly more complicated by these devices, technically more complex, more prone to failure and insight into the manufacturing costs becomes much more expensive.

The object of the present invention is to provide a water softening and kegenerierverrichtung for dishwashers @@ @@@ monkeys that are simple and is built in a straightforward manner.

A dishwasher with a device for water softening, whose softening filter is at least sufficient for a complete rinsing program and which is connected between the water inlet valve and the tub, and with a @@@ Filling and dissolving the regenerant in the container, which in general the necessary for the regeneration of the ion @ ust @@ sch filter mass before each rinsing program Monge a @ Rege @ eriermittel @ is carried out according to the invention d u r c h e k e n n n z e i c h n e t that the with his @oden above the @ water inlet @ in the rinsing tub arranged container at the bottom with the inlet side of the softening filter @ through an hourly open air through which the water can flow in both directions Connection line is connected to the water and that this is above with the atmosphere connected containers @ i @ Fas @ ungshaft @at, d @@ @ur On @@ h @@ the m @@ i @ al for one Regeneration required, dissolved amount @@ regemeration agent is sufficient.

@ en @ in such a training the water inlet valve ge @ ff @ et is, @@ ba @ t due to the flow resistance in the @@ hardening filter on its inlet side a pressure on the part of the water through the connecting pipe presses into the container. The air contained in the container escapes to the top and the regenerant is dissolved.

After the end of the water supply, alse @ en @ the water inlet valve is closed again, the one on the inlet side of the softening filter disappears auf @@ te @ruck and the solution runs into the softening filter due to the level difference and given @@ if partially through this to @@ ttich, whereby the softening filter is regenerated and air into the container nachstr @@ t. The water supply @@@ softening filter and to the container as @ through a single valve, the passport inlet valve of the Dishwasher, device and the connecting line are opened one after the other Directions (water supply and solutions @@ ahme) flowed through.

The generation takes place after the first water run, and @war chne manually or electrically controlled auxiliary devices.

To prevent the liquid filling from tearing off after the regenerant solution has drained off @@, it is advisable to place the softening filter lower than the Bottom of the container.

One will approach one another, an escape of water or solution from connect the upper opening of the container @@.

For this purpose @@@ de @ container can be given a size, which is made up of the pressure on the inlet side of the softening filter. the flow resistance of the Connecting line and the duration of the water supply results; one can also in front of the Opening to the atmosphere on one side of the valve with a @@ hwinmerkugel arranged underneath provide. B @@ ser it will be in general @ one, the flow resistance of the Connection line in relation to the flow resistance of the softening filter @@ @@ choose that during the water supply to the softening filter and @@@ @@ ttich the container does not overflow. @ ier @@ serves @@@ itself in partial @@ - throttled Passage, e.g. B. a Querschmittsverangung.

Rine those in both directions of flow in the same way dro @@ el @@@ Cross-Schmitts narrowing allows the regeneration solution to behave as desired slowly drain @@ to the softening filter.

If, on the other hand, throttling in both directions of flow is required for some reason Any variable throttle of known design can act differently (Gu @@ ielement, Schwi @@ erkörper, spring-loaded @ t @ flap, suction effect in the branch the connecting line) on the connecting line.

In most cases, the connecting line is constructive easiest to the supply line from the water inlet valve to the inflow side of the Softening filter connected; you can, however, if the @ur makes it available Make space or other constructive reasons appear desirable on the river side of the softener filter also provide a second connection and the connection @ -line to this connection.

With this invention, an independent regeneration of the The softening filter is achieved without having to go through any dishwasher Associated water inlet valve or other valves, changeover devices or other manual or automatic components would be required. The inventive Dishwasher is structurally and functionally much easier @@ with @@@, the desired effect can be achieved with less technical effort, the dishwasher This also makes it less susceptible to interference and cheaper.

Another feature of the invention is that the filler opening constantly with the softening filter connected tank too in operation can remain open or can only be covered loosely and leaky needs.

There are k @ ine @ additional valves, float switches or the like necessary. This has the major advantage that the operation is easier and is more reliable because after filling the regenerant, such. B. @ochsals, a tight closure of the filling opening and thus difficulties leg There is no need to open the tightly closed lock; that's how they become after everyone else Filling in existing possibilities of error in the event of a leaky filling opening is irrelevant. Hin @@ ko @ mt that the container is manufactured in the simplest and cheapest version can be because it can neither be sealed @ u @ nor any other @ to be observed Needs to withstand water pressure.

Furthermore, the water softening and generating device according to to evaluate the invention as an important advantage that for the water supply to the container and only one for the drainage of the solution from the container to the softening filter Connection line is required, which fulfills both tasks. Also are in this connecting line has no shut-off or switchover valves whatsoever necessary, but a simple narrowing of the cross-section may be sufficient, to set the flow rate once and for all. D @ this connecting line between The container and softening filter are loosened in continuously changing directions by @@, @ wangel @@ fig also achieves that one between the container and its connecting line is expedient @ ie @ always again in the opposite direction of any Impurities or blockages are flushed free with every @ @@ ue @ n water supply.

Exemplary embodiments of the subject matter of the invention are shown in the drawings shown. It see: Fig. 1 the sch @@@ table representation of a dishwasher with functions for water softening and regeneration in a dishwasher, Fig. 2-5 Examples of the cover for the filling opening of the container.

In Fig. 1, in the housing 1 of a dishwasher, among other things.

a rinsing bed 2 housed. In this Rottich 2 are @ich in well-known, not shown @eise wire baskets to hold the dishes, the @urn cleaning in alternating rims can be sprayed with water jets.

@chrnals a bestinste, ven the water supply line 3 ko @@ end amount of fresh water via an electrically controlled water inlet valve 4 passed through corresponding lines 5, 6 into the tub 2, we this water, partly cold and partly heated as well as partly with an addition of cleaning agents, is rolled over the dishes in a be @@ nter @eise, and finally to be removed as dirty water using the @@@ pe 7.

In the known Grun @ principle of a dishwasher that may be executed in their singularities in numerous construction forms now water treatment and regeneration devices according to the invention as follows be switched on; A softening filter filled with ion exchange filter material 8, any design, is with its inlet @ eits 9 via the line 5 with the Water inlet valve 4 connected. From the bottom side 10 of the softening filter 8 leads the line 6 at 11 in the bed 2 of the dishwasher.

a regenerant liquid container 12, in the following course sals container called, is so housed in or on the dishwasher that its bottom 1, at least ii possible of the water inlet 11 in the tub 2. The difference in altitude is denoted by h. This salsa container 12 has a filling opening in its area 14 for the regenerant, which is also accessible from inside the container 2 can be, and @@ ten to s @ i @@@ Redem 13 a @ieb 15, which the In @@@@@@@ of the sal @ beaker 12 separates from a connecting line 16, the connecting line 16 connects leg T-piece 17 the Salsb container 12 with the inlet side 9 of the softening filter 8 and thus simultaneously with the water inlet valve 4, this connecting line 16 is anywhere, e.g. B. at 18, throttled in their flow possibility, @@ simplest by narrowing the cross-section.

These softening and regeneration devices work how foglt: Before starting the dishwasher, expediently during you put the dirty dishes in the dishwasher and the detergents @, you also fill the required to regenerate the softening filter 8 Regenerants, e.g. B. Sal @, whose Monge from the raw water harts and the water consumption is dependent on the dishwasher, through the filling opening 14 into the salt container 12. The single filled @al falls on the sieve. 15. Becomes the dishwasher switched on, all other processes take place automatically, controlled by a simple electrical control mechanism, not shown. After opening the water inlet valve 4 flows from the water supply 3 k @ mmende water through the line 5 in the Softening filter 8, is softened here in flow and arrives as soft water through line 6 at 11 i @ @@@ @ettich 2. The water inlet valve 4 remains in each case @ur @ long open, in Bettich 2 the Gew @ ns @ ht @ Wasserstand b @ w. @ i @ e has set a certain amount of water. It works simultaneously while the water is flowing in because of the softening filter 8, as before @der in his @ ul @ ufseite 9, aufb @@ endem Wasserdru @@ there is a smaller one via the compressed connection line 16 Partial amount @@ of water to salsa bowl 12, while air at 14 leaves freely @@. the The flow rate of the connecting line 16 is in proportion to the flow resistance of the softening filter 8 se set that one side @ to @@@ close the water inlet valve 4 the Sal @ container 12 @@ ch is not filled when it is not overflows, but that on the other hand, the amount of water that has been added to dissolve the filled @alting is enough. The water does not flow as long as valve 4 is open only through the softening filter 8, but also on the same side in a smaller subset through the connecting line 16 upwards, goes through the sieve 15 and fills the Salt container 12 to @ur gewü @@ chten @ öhe. In doing so, this @ flowing water penetrates the @als lying on the sieve 15 and already solves it to a considerable extent on.

As soon as the water inlet valve 4 closes, the formed Sal solution long @ an as a result of the level difference h from the salt container 12 through the Sieve 15, through the throttled connecting line 16 via the T-piece 17 @@@ Softening filter 8 di @ hth outside and from there through line 6 and the inlet 11 flow in the tub 2. During this long - @@@ en flow et @ a Sals not yet completely dissolved in the sals container 12 when the water flows in dissolve.

The Sal @ dissolving process is thus favored by the fact that the Sal two times, namely in alternating direction, is traversed. The zu softening filter 8 saline solution that has reached regenerates the ion exchange filter material.

During this time, the water that has run in is in rinsing tub 2 unwalsted about the dishes; the first pre-wash takes place. After that At the end, the @chmutsvasser is removed from the rinsing tub 2 by means of the pump 7.

For the next water inlet @ ff @ et again valve 4.

The water flows through line 5, the softening filter @, through the line 6 and at 1 into the rinsing tub Z. Flows in turn on the same side Some water through the reduced pre-binding line 16 to the salt container 12. @ert but if there is no longer any saline in the all-white area, this small amount of water was left out after closing the valve 4 on the way described se @@@ vem Sal @ container 12 via the softening filter @ into the rinsing tub 2 as soft water, d @ the way led over the softening filter 8, this whole process repeats every @ @@@ en water inlet until the completion of the complete rinsing program the dishwasher.

It is advisable to control the program sequence @@ so that the legs expand Water inlet, al @@ followed by @@ regeneration of the softening filter @, the @ First partial amount of the incoming water @ @@ fert @@ ge @@@ pt, because this water is strongly enriched with K @ ch @ as and with the @@@ gewasch @@@@ @@ rte-I @ n @@ and yourself @@ with as rinsing water, ver all @ zu @@@@ with washing-up liquid, would be bad.

The examples of possible embodiments shown in FIGS. 2-5 Own is single: According to FIG. 2, a filling nozzle 20 protrudes from the salsa container 12 in the @ettich 2. So that no dirty water gets into the @ Umwäl @@@ of the rinsing water Salt container 12 can reach, is given at the end of the diagonally cut Filling opening of the horse 20 s @ hon a simple sloping hinged lid 21, which is simply hung over the Stutsemrand or carried by a hinge 22 and can optionally be additionally pressed by a helical spring 23, u @ Hold it against vibrations @u, but the hinged lid 21 also closes damn not tight so that air can pass through.

The filler neck 30 of Fig. 3 is by loosely inserting a preferably cup-like Stepfene 31 (shown in section) covered. A Cup-like stopper 31 can also be used as a cup for the amount of salary to be filled to serve. The edge of the filler neck or the flange of the plug can be radial be grooved to secure the necessary air passage.

According to FIG. 4, the open filling opening 40 can be executed by means of a Crockery basket 42 attached cover 41 covered. The guides of the crockery basket are not shown.

Fig. 5 shows the @ as a container 12 in the un the joint 50 to the front swing-out for 51 of the dishwasher 1.

This version allows a convenient filling of the salses. Advantageously, the open filler opening 52 can be used when closing the for 51 by means of one on the dishwasher housing 1 or @@ Spülb @ ttich 2 or @@ a dish notch attached misery 53 are covered so that they are permeable to air. This filling opening 52 could @ nte also similar to that in Fig. 2 with a hinged cover or how in Fig. 3 are closed with a cup-like stopper. The connecting line 16 is in this Palle gan @ or partially designed as a hose, if you do not have a Want to use R @ hinge that z. B. can be coaxial with the joint 50. A circumferential sealing strip 54 seals the door 51 against one around the tub opening 55 circumferential, protruding flange 56 of the tub @.

The salt container 12 can also be inside the tub @ 2, e.g. B. flat on a side wall.

Next @ i @ the invention could also be carried out in the form that the softening filter 8 and the salsa container 12 @u can be installed as a whole Building unit are closed together.

Claims (6)

P a t e n t a n s p r ü c h e 1. Dishwasher with a device for water softening, whose softening filter is at least sufficient for a complete washing program and which is connected between the water inlet and the tub, and with one for filling and dissolving the regenerant, e.g. B. Koch @@ ls, serving container, which in general Before each rinsing program, the amount required to regenerate the ion exchange filter Amount of regenerant is supplied, which is not indicated e t that the bottom (13) above the water inlet (11) in the tub (2) arranged container (12) at the bottom only with the inlet side (9) of the softening filter (8) through a constantly open connection line through which flow can flow in both directions (16) is connected in a water-bearing manner and that this is connected above with the atmosphere Container (12) has a capacity to accommodate the @ ari @ al for regeneration required, dissolved insufficient amount of regenerant. 2. Dishwasher according to claim 1, d a d u r c h g ek e n n shows that the softening filter (8) is below the level of the Bedens (13) of the container (12) lies. 3. Dishwasher according to claim 1 or 2, characterized in that that the connecting line (16) to the line from the @ water inlet valve (3) to the inflow side (9) of the softening filter (8) is connected (17). 4. Dishwasher according to claim 1 or 2, d a d u r c h g e It is not indicated that the connecting line (16) is directly connected to the inflow side (9) of the softening filter (8) is connected (Fig. 5). 5. Dishwasher according to claim 1 or the following, d a d u r c h g e k e n n n z e i c h n e t that the connecting line (16) is a throttle point (18). 6. Dishwasher according to claim or following, d a d u r c it is noted that the filling opening (14, 20, 40, 52) can be covered is (flap 21, @@ ßstopfen 31, plate 41, plate 53).