SE454235B - DISPOSAL DEVICE FOR HOUSING APPLIANCES, SPEC FOR DISHWASHERS - Google Patents

Description

15 20 25 30 35 454 235 2 proportion of appliances installed in areas with extreme water hardness. In areas with normal water hardness, on the other hand, the siphon is aerated, consequently rendered inactive, so that the saline preparation takes place with the volume of water from a chamber.

However, if the siphons in machines in areas with hard water are aerated due to leaks or incorrect adjustment and consequently rendered inactive, only the lower machine share is affected. Further embodiments of the invention appear from the features of the subclaims.

An embodiment of the invention is described in more detail in the following with reference to the drawing. This shows in section a container with shallow depths, which has several chambers. Denoted by 1 is a water storage container, which has two chambers 2 and 3 open at the top. In addition, the water storage container 1 is provided with a overflow drain shaft 5 separated from a wall 4 from the chamber 3. dishwasher.

The two adjacent chambers 2 and 3 in the water storage container 1 are separated from each other by a wall 7, which has a smaller height than the wall 4 of the overflow shaft S, which forms an overflow threshold 8 at the top.

Above and around the partition wall 7 there is a siphon 9, the two legs 10 and 11 of which reach almost to the bottom 12 in the two chambers 2 and 3. The curved part 13 of the siphon 9 lies below the level given by the overflow drain sill 8 on the wall 4.

At the curved part 13 of the siphon 9 a vent line 14 with small cross-sections is connected, which line suitably leads to the front of the flushing machine, where the line at its free end has an easily accessible valve (not shown).

This valve can also be designed as a closing plug, as an openable wall section or the like of the otherwise closed vent line 14. Finally, at the bottom from the chamber 2 in the water reservoir 1 a drain line 15 to the salt tank in the otherwise not shown the softener for the dishwasher. The salt container is connected via a salt water line to the ion exchange container of the softener. On the outlet side, the ion exchange container is connected to the dishwasher rinsing container. In the drain line 15 and / or in the salt water line there is always a valve controlled by the dishwasher software for controlling the regeneration process of the filling in the ion exchange container.

The water storage tank 1 is used as follows in the regeneration of the filling in the ion exchange tank: During the supply of fresh water to the rinsing tank in the dishwasher, water is also supplied to the water storage tank 1 corresponding to the arrow 16. First the chamber 3 and then the chamber 2 are filled with water. through the overflow drain threshold 8 on the wall 4 the level given has been reached. The additional water supplied in excess flows correspondingly to the arrow 17 over the overflow drain threshold 8 and comes through the overflow drain shaft 5 and the drain line 6 to the flushing tank in the dishwasher (arrow 18). The water stored in the two chambers 2 and 3 in the water reservoir 1 is first prevented from flowing away through the closed valve in the drain line 15 and / or in the salt water line between the salt tank and the ion exchanger.

In dishwashers, which are used in areas with less water hardness, a small amount of salt water is sufficient for regenerating the filling in the ion exchange container. In the event of extreme water hardness, it is nevertheless necessary to introduce a larger amount of salt water into the ion exchange container. To start the regeneration process, during which no additional water flows to the water storage tank 1, the drain for stored water is opened through the drain line 15 to the salt tank (arrow 19).

In this case, the chamber 2 and the existing volume of water above the partition 7 Q (dotted line) are first emptied. In areas with lower water hardness, the vent line is 14 resp. its valve at the end of the line open, so that the siphon 9 is vented and consequently inactive. The water present in the chamber 3 below the dotted line therefore remains in the water storage tank 1. The water flowing through the drain line 15 displaces salt water from the salt tank, which comes to the ion exchange tank and causes the regeneration of the tank filling. In areas with high water hardness, the vent line 14 is closed, so that the siphon 9 can be actuated when emptying the water storage container 1. At the beginning of the regeneration process, therefore, both the chamber 2 and the chamber 3 in the water tank 1. Only a small amount of water remains on the bottom 12 of the chamber 3. The water stored in chambers 2 and 3 now adds a large amount of saline solution to the salt container. In the case of machines in hard water areas, the valve in the deaeration line 14 should become leaky, in any case the filling in the ion exchange tank is regenerated with a - if even less - amount of saline.

When modifying the described exemplary embodiment, it is possible to provide the water supply container 1 with further chambers, which are again connected to each other by a siphon which can be deaerated in each case. By bringing this into action, the required amount of salt water can be increased step by step.

Claims (5)

5,454,235 PATENT CLAIMS Softening device for household appliances, in particular for dishwashers with an ion exchange tank and a water storage tank (1) with several chambers (2,3), which are liquid-conductively connected to each other and of which a chamber (2) with a drain line (15 ) is connected to a salt container, characterized in that the water storage container (1) has at least two chambers (2,3), which are connected to each other by an aerateable siphon (9). The softening device according to claim 1, characterized in that the two chambers (2,3) in the water storage container (1) lie next to each other and have a common partition wall (7), over which the siphon (9 ) gripper. 3.; Softening device according to Claim 1 or 2, characterized in that the siphon (9) has a deaeration line (14) connected to its curved section. A softening device according to claim 5, characterized in that the vent line (14) leads to the front of the household appliance. A softening device according to claim 3 or 4, characterized in that the vent line (14) has at its free end a valve, a closing plug, a removable wall section or the like.