炼油与化工
煉油與化工
련유여화공
REFINING AND CHEMICALS
2015年
4期
46-50,51
,共6页
急冷系统%流程模拟%NSGA-II算法%Pareto解%操作优化
急冷繫統%流程模擬%NSGA-II算法%Pareto解%操作優化
급랭계통%류정모의%NSGA-II산법%Pareto해%조작우화
Quench systems%Process simulation%Multi-objective optimization%NSGA-II%Pareto solution set%Operation optimization
利用化工流程模拟软件PROII建立了乙烯装置急冷系统的稳态仿真模型。在对大量的模拟数据进行分析后，找出急冷系统中对产品和能量有影响操作参数，并提取数据利用线性回归分析法进行模型识别，建立了以产品分离度和换热器热量回收值最大的多目标的数学模型。采用NSGA-II算法对多目标优化模型进行求解，得到Pareto最优解集，结合生产装置实际运行情况，提出了优化操作条件。
利用化工流程模擬軟件PROII建立瞭乙烯裝置急冷繫統的穩態倣真模型。在對大量的模擬數據進行分析後，找齣急冷繫統中對產品和能量有影響操作參數，併提取數據利用線性迴歸分析法進行模型識彆，建立瞭以產品分離度和換熱器熱量迴收值最大的多目標的數學模型。採用NSGA-II算法對多目標優化模型進行求解，得到Pareto最優解集，結閤生產裝置實際運行情況，提齣瞭優化操作條件。
이용화공류정모의연건PROII건립료을희장치급랭계통적은태방진모형。재대대량적모의수거진행분석후，조출급랭계통중대산품화능량유영향조작삼수，병제취수거이용선성회귀분석법진행모형식별，건립료이산품분리도화환열기열량회수치최대적다목표적수학모형。채용NSGA-II산법대다목표우화모형진행구해，득도Pareto최우해집，결합생산장치실제운행정황，제출료우화조작조건。
This paper used a simulator PROII to build a steady state simulation model of quench system in ethylene plant. A huge amount of simulated data was analyzed to find out the operating parameters affecting the product and energy in the quench system and extracted data to make model identification by using linear regression method. It built the multi-objective mathematical model of enabling product resolution in quench system and heat recovery value of heat exchanger to be maximum. The NSGA-II algorithm was used to solve the multi-objective optimization model and get Pareto optimal solution sets. Based on the production practice,it proposed optimized operation condition. The results showed that this method is effective and feasible. It provided a useful method to optimizing design and directing operation for quench system .
