| 氧化铝蒸发的动态过程建模与仿真 |
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| 引用本文： | 聂晓凯,阳春华,柴琴琴,桂卫华.氧化铝蒸发的动态过程建模与仿真[J].化工自动化及仪表,2011,38(3):279-283. |
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| 作者姓名： | 聂晓凯 阳春华 柴琴琴 桂卫华 |
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| 作者单位： | 中南大学,信息科学与工程学院,长沙,410083 |
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| 基金项目： | 国家杰出青年科学基金资助项目，国家自然科学基金资助项目，国家"863"计划项目 |
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| 摘 要： | 基于物料平衡原理和热量平衡原理,分析蒸发器出口料液浓度与进口料液和蒸汽之间的动态变化,建立了四效逆流降膜蒸发加三级闪蒸的氧化铝蒸发过程时滞动态数学模型和蒸发单元状态空间模型.通过模型计算和仿真验证了模型的有效性,与氧化铝蒸发过程实际测量值相比较,证明了模型能够很好地反映氧化铝蒸发的动态生产过程,为优化控制系统设计奠定了...
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| 关 键 词： | 氧化铝 蒸发 过程建模 动态 仿真 |
Dynamic Process Modeling and Simulation for Alumina Evaporation |
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| NIE Xiao-kai,YANG Chun-hua,CHAI Qin-qin,GUI Wei-hua.Dynamic Process Modeling and Simulation for Alumina Evaporation[J].Control and Instruments In Chemical Industry,2011,38(3):279-283. |
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| Authors: | NIE Xiao-kai YANG Chun-hua CHAI Qin-qin GUI Wei-hua |
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| Affiliation: | (School of Information Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Establishing the dynamic mathematical model for the alumina evaporation process（AEP） plays a key role in studying optimal control over AEP.The dynamic relationship among output liquid concentration and input liquid and vapor was analyzed based on mass balance and thermal balance principle;and the nonlinear time-delay dynamic mathematical model of AEP with four-effect countercurrent falling film and three flash evaporators was built up;and the state-space model of one evaporator unit was constructed.The validity of the model was verified by calculation and simulation,and the comparison between the calculated results and simulated ones shows that this model can better reflect the dynamic production process of alumina evaporation and lays a foundation for the design of optimal control system. |
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| Keywords: | alumina evaporation process（AEP） process modeling dynamic simulation |
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