FIELD: mechanical engineering.
SUBSTANCE: invention relates to the dosing unit for protection from corrosion in water-hydraulic plant for automatic maintenance of preliminary specified concentration of the protective means in water-containing liquid. Dosing unit for automatic maintenance of preliminary specified concentration of the protective means liquid protection from corrosion in water-hydraulic plant includes measuring circuit made with possibility of disconnection from the hydraulic unit. Measuring circuit by means to control valves is capable of closing and can be connected to a source of the cleaning liquid in cleaning circulation circuit. Due to that in the measuring circuit during specified time interval circulates cleaning fluid concentration sensor. For calibration of the dosing unit can be loaded reference liquid with known concentration of the protective means, first of all water, first of all water from the public network. Measuring circuit comprises other sensors.
EFFECT: technical result is increased accuracy and reliability of dose measuring, as well as higher safety.
8 cl, 2 dwg
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