作　　者： ; ;

机构地区： 华南理工大学化学与化工学院化学工程研究所

出　　处： 《石油化工》 1992年第6期392-399,共8页

摘　　要： 在已有的过程系统能量结构模型和(火用)经济模型的基础上,提出了一个系统的优化综合方法。其要点是:(1) 用(火用)经济学模型导出各层次优化的目标函数和边界条件;(2) 在单元设备和局部流程两个层次上对按能量功能划分的三个子系统进行协调优化;(3) 在全局层次上,通过跨环节的复合措施对初步方案的进一步改进以及按收益进行投资再分配的调整,使全局方案逐步趋优。 In this paper, based on the pre-established process energy structure model and process exergoeconomic model, a systematic optimization synthesis procedure is advanced. The highlights are: (1) In order to reflect the substance of energy use and rational cost of energy, the objective function and the constraints of optimization have to be established on the basis of exergoeconomic principle and model.(2) On the unit operation equipment and the partial flowsheet level, a decomposing-coordinating optimization approach, taking three energy-functional links as the sub-systems, is suggested. (3) On the total system level, by means of the compound improving measures, which cover more than one link, and the investment redistribution in accordance with the rate of return, the total scheme of fractionation tower networks can be gradually led towards the optimum. The application of this method to industrial plants shows significant benefit both in energy saving and economy.

关 键 词： 分馏塔 网络 能量 优化 经济

领　　域： [经济管理]