EVAPORATING/CONCENTRATING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an evaporating/concentrating device which does not break down the balance of flow rate at a heat exchanger part and does not consume excessive energy by regulating the supply of raw water by measuring the flow rate of the condensed water of the evaporating/concentrating device. SOLUTION: In the evaporating/concentrating device provided with the heat exchanger in which the raw water to be concentrated is preheated by the condensed water discharged from the raw water, a means for measuring the discharge quantity of the condensed water to be discharged, a means for measuring supply quantity at the time of supplying the raw water, a means for regulating the discharge quantity and the supply quantity and a control means for controlling these means are provided.