Material balance and energy balance equations of complex multi - effect evaporation system were expressed in matrix equation , which has the advantages of clear structure and high modularization . by holding or omitting correlation block - matrix in matrix equation , matrix equation could be used to describe the difference of forward - feed , back - feed and cross - reed multi - evaporation system with or without solid separation , extra steam being led off to preheat material liquid , condensation water flash , or solution flash . the models include design and operation 该模型利用矩阵方程具有结构清晰和高度模块化的特点,将复杂多效蒸发系统的物料及热量衡算方程组以矩阵形式表达,通过保留或舍弃矩阵中特定功能模块,模型就能代表有或无固相析出、有或无引出额外蒸汽预热原料液、有或无冷凝水闪蒸、有或无溶液闪蒸等不同情况以及各种情况任意组合的并流、逆流、错流多效蒸发过程,从而实现模型的通用性。
