并流多效蒸发淡碱浓缩工艺优化设计研究  

Study on the Optimum Design of Cocurrent Multieffect Evaporation for Light Alkali Concentration Technology

作　　者：阮奇[1] 李玲[1] 王勇[1] 叶长燊[1] 黄诗煌[1] 

机构地区：[1]福州大学化学化工学院,福州350002

出　　处：《纺织学报》2004年第6期49-53,共5页Journal of Textile Research

基　　金：福建省教育厅科技基金资助项目 (JB0 10 3 8)

摘　　要：建立了并流多效蒸发淡碱浓缩工艺优化设计的数学模型。该模型以整个系统 (包括多效蒸发及多级预热两个序贯系统 )的年总费用 (包括系统年操作费用和年设备折旧维修费用 )最小为优化目标 ,以生蒸汽压力、冷凝器真空度、各效蒸发器有效传热温度差为决策变量 ,提出一种新算法———遗传算法结合拉格朗日乘子法求最优解。算例表明 ,生蒸汽压力、冷凝器真空度及淡碱液湿度对优化结果影响显著 ,各效有效传热温度差的影响不显著。优化设计比常规设计可节省年总费用 13 %～ 17%左右。The mathematical model of cocurrent multieffect evaporation for light alkali concentration technology was established.A new algorithm genetic algorithm combined with the Lagrangian multiplier method was presented to solve the model.The practical example indicated that the influence of the pressure of fresh vapor,the pressure of condenser and the temperature of light alkali were notable.The influence of heattransfer effective temperature difference of varieffect wasn't notable.The new algorithm increased the convergence speed and stablility.

关 键 词：淡碱浓缩 并流多效蒸发 优化设计 数学模型 遗传算法 拉格朗日乘子法 

分 类 号：TS195.2[轻工技术与工程—纺织化学与染整工程]