| 摘要 |
A method for operating a water softening system (16), wherein the water softening system (16) comprises: - one or more containers (19a-19d) with ion exchanger resin; - a supply container (30) for a regeneration means solution (29) for regenerating the ion exchanger resin; - a blending device (20) with which a blended water stream can be mixed from a softened sub-stream and a raw water-carrying sub-stream; - and an electronic control unit (26), wherein the control unit (26) tracks a remaining capacity of each container (19a-19d) and initiates the regeneration (12) thereof on the basis of the remaining capacity of a respective container (19a-19d). The method is characterized in that in a first operating mode (6) of the control unit (26), a regeneration (12) of a respective container (19a-19d) can only be initiated if the remaining capacity of this container (19a-19d) is less than a first threshold value GW1 (13) assigned to this container (19a-19d), and in that a regeneration (12) of a respective container (19a-19d) is initiated in a second operating mode (7) of the control unit (26) because the remaining capacity of this container (19a-19d) is less than a second threshold value GW2 (11) assigned to this container (19a-19d), wherein the assigned first threshold value GW1 for a respective container (19a-19d) is less than the assigned second threshold value GW2. The point in time for regeneration and the salt consumption of a water softening system are optimised with the invention. |
