| 摘要 |
PROBLEM TO BE SOLVED: To prevent the dissolution of a non-condensable gas into distilled water and to obtain high purity water by a method in which a distilled water storage part is formed downstream from a condenser, a heating means is arranged in the storage part, and a gas discharge part is formed between the condenser and the storage part. SOLUTION: Pure steam is supplied from a stem supply line 5 to a condenser 1. Cooling water is passed between a condenser main body 2 and each heat conductive pipe 3 through a cooling line 6 and drain line 7. A storage column 8 is installed at the lower end of the condenser 1, and a distilled water storage part 9 and an ejection part 10 are formed. A heating means 12 is disposed in the bottom part of the storage part 9, an exhaust line 15 is installed in the upper part of the storage column 8, and a heated/deaerated non-condensable gas is discharged. The downstream side of an ejection line 11 is divided into two which are connected to a distilled water tank 19 and a drainage tank 20 respectively. The purity of distilled water is judged by an electric conductivity detecting means 23, a control valve 21 is changed over/controlled, and distilled water is passed toward the tank 19 or the tank 20.
|
