Evaporating and concentrating method

Abstract

Abstract PURPOSE:To enable a considerable cost reduction by adopting the construction wherein the exhaust steam of a turbine is supplied to at least one evaporators among multiple-effect evaporators and the steam emitting therefrom is supplied successively to the other evaporators. CONSTITUTION:The exhaust steam of a turbine 1 is conducted to an evaporator 8 as the 1st stage. The steam generated in the evaporator 8 is fed to an evaporator 4, and is conducted from the evaporator 4 successively to evaporators 9, 10. As a result, the exhaust steam of the turbine can be utilized for four evaporators 4 and 8-10, whereby quadruple effects are obtd. Since the exhaust steam of the turbine is not polluted by corrosive gas in the evaporator 8 to which said steam is conducted first, ordinary carbon steel is usable for the material for the steam side in the heating section of said evaporator. A considerable cost reduction is thus made possibl.

Inventors

• 👤 Shinjiro Yokota
• 👤 横田　信次郎
• 👤 Yoshiharu Matsumoto
• 👤 祥治 松本

Bibliographic Details