| 摘要 |
A system (100) is provided with: a desalination plant (2) comprising a high-pressure pump (202) which increases the pressure of water being treated, a reverse osmosis membrane module (205) which separates the pressurized water being treated into fresh water from which salt has been removed, and enriched water having an enriched salt content, and a power recovery device (203) which recovers energy from the enriched water; and an abnormality predicting device (1) which predicts abnormalities in the desalination plant (2). The abnormality predicting device (1) comprises: a performance metric computing means (101) which computes a performance metric of the desalination plant (2) using at least any two measured values from among the flow rate, the pressure, the temperature and the water quality of the water being treated, the enriched water or the fresh water; a category classifying means (102) which, on the basis of the characteristics of the operating data, classifies operating data, including the at least two measured values and the computed performance metric, into one of a plurality of categories; and an assessing means (103) which assesses abnormalities of the desalination plant (2) from the classified categories. |
