OPERATION MANAGEMENT DEVICE FOR A VAPORIZATION DEVICE FRESH WATER GENERATOR PROVIDED WITH THE OPERATION MANAGEMENT DEVICE AND OPERATION MANAGEMENT METHOD AND FRESH WATER-GENERATING METHOD FOR VAPORIZATION DEVICES

摘要

(6) for controlling the operating conditions of the evaporation device (4) for evaporating and concentrating the water to be treated containing calcium sulfate by heating, characterized in that the relationship between the ionic strength at a predetermined temperature and the saturation solubility of calcium sulfate (62) for calculating the ionic strength in the water to be treated, and a solubility product calculating means (62) for calculating the solubility product of calcium sulfate in the water to be treated 63), the ion intensity value calculated by the ion intensity calculating means (62) and the solubility product calculating means (63), and the solubility product value of calcium sulfate and the saturation solubility product curve data, The operation conditions of the evaporation apparatus 4 are calculated so that the solubility product value of the calcium sulfate does not exceed the saturation solubility product value; (65) for changing the operating condition of the engine (4). According to the present invention, it is possible to provide an operation management apparatus for an evaporation apparatus capable of efficiently generating fresh water while preventing calcium sulfate scale precipitation.;