CONTROL UNIT FOR WATER-SOFTENING DEVICE Russian patent published in 2013 - IPC C02F1/42 

FIELD: chemistry.

SUBSTANCE: control unit (1,1a) for water-softening device (2) includes main inlet lines for initial and for mixed water (4), (7), sensor for determining hardness of initial or mixed water, secondary outlet and inlet lines (5), (6), bypass pipeline (9), automatically controlled mixing device for mixing flow of mixed water from first partial flow of secondary inlet line (6) and secondary partial flow of bypass pipeline (9) and electronic control device (11, 11a). Control device is made in such a way that by means of definite water hardness makes it possible to additionally regulate installed position of mixing device so that it sets water hardness in flow of mixed water on specified calculated value. Control unit is made as external for water-softening device (2) and has case (3), on external side of which main inlet line (4), main outlet line (7), secondary outlet line (5) and secondary inlet line (6) are made. Case (3) of control unit contains sensor, bypass pipeline (9), mixing device and electronic control device (11, 11a).

EFFECT: invention ensures partial softening of water on the basis of completely automatic mixing with application of already existing water-softening devices.

15 cl, 2 dwg