Water quality diagnosis system, power plant, and water quality diagnosis method

摘要

An object of the present invention is to provide a water quality diagnosis system, a power generation plant, and a water quality diagnosis method capable of more accurately and uniformly diagnosing the degree of water quality abnormality. A water quality diagnosis system provided in a power plant, provided in the water circulation system (1) in the power plant, and provided in the electrical conductivity measuring unit (3) for measuring the electrical conductivity of circulating water, and provided in the water circulation system (1), circulating A pH measurement unit (4) for measuring the pH value of water to be used, and a control device (5) for diagnosing the degree of water quality abnormality are provided. A reference value based on the correlation, a plurality of preset ranks indicating the degree of water quality abnormality in the water circulation system 1, and a storage unit in which a range of deviation from a reference value corresponding to the plurality of ranks is stored, and an electrical conductivity measuring unit ( 3) and a rank determination unit that determines the rank of the measurement result based on the measurement result by the pH measurement unit 4 and the deviation range stored in the storage unit.