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

The disclosed operation management device (6) controls the operating conditions of a vaporization device (4) that evaporates and concentrates by heating the water being processed, which comprises calcium sulfate. The device is provided with an ionic strength-calculating means (62) that calculates saturation solubility product curve data that is predetermined from the relationship between ionic strength at prescribed temperatures and the calcium sulfate saturated solubility product, and the ionic strength in the water to be processed, a solubility product-calculating means (63) that calculates the calcium sulfate solubility product in said water to be processed, an operating conditions-calculating means (64) that calculates operating conditions for the vaporization device (4) such that the calcium sulfate solubility product with respect to said ionic strength of said water being processed does not exceed the saturation solubility product by comparison of the ionic strengths and calcium sulfate solubility products calculated by the ionic strength-calculating means (62) and the solubility product-calculating means (63) and said saturation solubility product curve data, and an operating conditions-modifying means (65) that changes the operating conditions of the vaporization device (4) to the operating conditions calculated by the operating conditions-calculating means (64). An operation management device for vaporization devices that can prevent calcium sulfate scale deposition while efficiently producing fresh water can thereby be provided La présente invention concerne un dispositif de gestion de fonctionnement (6) régulant les conditions de fonctionnement d'un dispositif de vaporisation (4) qui évapore et concentre par chauffage de l'eau en cours de traitement, qui comprend du sulfate de calcium. Le dispositif est doté d'un moyen de calcul de la force ionique (62) qui calcule les données de courbe de produit de solubilité à saturation qui sont prédéterminées à partir de la relation entre la force ionique aux températures prescrites, le produit de solubilité du sulfate de calcium à saturation, et la force ionique dans l'eau à traiter, d'un moyen de calcul du produit de solubilité (63) qui calcule le produit de solubilité du sulfate de calcium dans ladite eau à traiter, d'un moyen de calcul des conditions de fonctionnement (64) qui calcule les conditions de fonctionnement du dispositif de vaporisation (4) de façon à ce que le produit de solubilité du sulfate