CRYSTALLIZER AND ITS OPERATION METHOD

摘要

A crystallizer operation method controls the cooling condition so that a value of the substantial cooling heat Q<SUB>r</SUB> defined by an expression (1) given below is constant when performing thermal exchange of a fluid to be treated by a cooling device. Q<SUB>r</SUB> = Q<SUB>a</SUB> - Q<SUB>atm</SUB> (1) (wherein Q<SUB>a</SUB> represents a cooling heat in the cooling device and Q<SUB>atm</SUB> represents a heat emitted to environment.)