蒸发过程是乳粉生产的重要过程之一,使乳液中的水分汽化从而使乳液浓缩.蒸发器是乳粉干燥过程中热能消耗较大的装置.如何降低热能消耗是当前乳粉生产的关键.本文以(火用)损失最小为目标对多效蒸发温差进行优化得出最佳温差分配原则. Evaporation is one of the important processes in the production of milk powder, which makes the water in the emulsion vaporizes to concentrate the milk.Evaporator is a device that consumes more heat during the drying process of milk powder.How to reduce the heat consumption is the key to the current production of milk powder. In this paper, the objective of minimizing the exergy loss is to optimize the temperature difference distribution of multi-effect evaporation to get the optimal temperature distribution principle.