Patent ID: 7232504

Claim:
A distilling apparatus comprising: a distiller which stores therein a solution to be treated and distills the solution to form a distillate, wherein the distiller includes a cooler for cooling a distillation gas formed by heating the to be treated solution in the distiller, and wherein the distiller includes a plurality of partitions retained in the distiller at equal intervals, each of the plurality of partitions having a plurality of pores; a liquid level detector disposed in the distiller which detects the liquid level of the to be treated solution; a state detector for detecting a physical state of the to be treated solution contained in the distiller, wherein state detector includes a temperature sensor, a concentration sensor, and a specific gravity sensor; and a control unit for setting a target liquid level of the liquid level detector based on detection result of the liquid level detector and the state detector and controlling a supply amount of to be treated solution stored in the distiller so that an actual liquid level coincides with the target liquid level, wherein the to be treated solution is provided to the cooler as a cooling medium, before the solution is supplied to the distiller.