| 摘要 |
PURPOSE:To reduce necessary amt. of power by compressing steam generated in a first heat exchanger, feeding a part of the compressed steam to the first heat exchanger, and the rest to a second heat exchanger, and installing a flashing device succeeding to the second heat exchanger. CONSTITUTION:Feed liquid is fed through a pipe 21 to an evaporator 24 after being heated in a heat exchanger 23. The feed liquid is heated and concentrated by the steam in a tube 32 and stored as intermediate concentrated liquid in a tank 26. The steam generated in the evaporator 24 is boosted by a blower 31, and a part of the boosted steam is fed to a heating tube 32. The intermediate concentrated liquid is transferred to a second heat exchanger 4, where it is heated by the steam from the blower 31 which condenses in the outside of heat exchanger tubes, and the temp. and the pressure of the liquid are elevated. The liquid is discharged to the inside of a flash tank 7 through a pipe 5, four- way valve 3, and a pipe 6, and a pressure reducing hole 8 in the flash tank 7. Thus, the liquid is evaporated partly, ad generated steam is discharged to the outside.
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