| 百万吨级乙烯装置裂解炉先进控制系统设计与应用 |
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| 引用本文： | 李平,许锦,胡天生,唐登银,乔泰,蔡宏斌,李恺如.百万吨级乙烯装置裂解炉先进控制系统设计与应用[J].乙烯工业,2021(1). |
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| 作者姓名： | 李平 许锦 胡天生 唐登银 乔泰 蔡宏斌 李恺如 |
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| 作者单位： | 辽宁科技大学电子与信息工程学院;恒力石化（大连）化工有限公司;沈阳工业大学电气工程学院 |
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| 摘 要： | 以恒力石化(大连)化工有限公司1500 kt/a乙烯装置裂解炉为例,详细描述裂解炉的工艺流程,分析常规控制方案存在的问题,进而重新设计控制系统,该系统包括平均COT控制、支路温度平衡控制、支路温度“高控”“低控”和总进料流量提/降量控制。并且还介绍控制系统的工程实施,其中包括先进控制系统硬软件平台、先进控制与常规控制的切换逻辑、先进控制系统操作界面等。本系统的投用提高了裂解炉控制的平稳度,延长了裂解炉的运行周期,带来了显著的经济效益。
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| 关 键 词： | 裂解炉 先进控制 温度控制 |
DESIGN AND APPLICATION OF ADVANCED PROCESS CONTROL SYSTEM FOR CRACKING FURNACES IN MEGATON ETHYLENE PLANT |
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| Li Ping,Xu Jin,Hu Tiansheng,Tang Dengyin,Qiao Tai,Cai Hongbin,Li Kairu.DESIGN AND APPLICATION OF ADVANCED PROCESS CONTROL SYSTEM FOR CRACKING FURNACES IN MEGATON ETHYLENE PLANT[J].Ethylene Industry,2021(1). |
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| Authors: | Li Ping Xu Jin Hu Tiansheng Tang Dengyin Qiao Tai Cai Hongbin Li Kairu |
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| Affiliation: | (School of Electronic and Information Engineering,University of Science and Technology,Anshan,Liao-ning,P.C.114051;Hengli Petrochemical(Dalian)Chemical Co.,LTD.,Dalian,Liaoning,P.C.116318;School of Electrical Engineering,Shenyang University of Technology,Shenyang,Liaoning,P.C.110870) |
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| Abstract: | Taking the ethylene cracking furnaces in the 1500 kt/a ethylene plant at Hengli Petrochemical(Dalian)Chemical Co.,Ltd.as the example,this paper introduces in detail the process flow of the ethylene cracking furnaces,analyzes the problems in the conventional control scheme and re-designs the control system which includes the average COT temperature control,the branch temperature balance control,the branch temperature“high control”and“low control”and the total feed flow control.The implementation of advanced process control system,such as the hardware and software platform of advanced process control system,the switching logic between advanced control and conventional control and the operation interface of advanced process control system,is introduced.The application of this system improves the control stability of cracking furnace,prolongs the operation cycle of cracking furnace and brings remarkable economic benefits. |
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| Keywords: | ethylene cracking furnace advanced process control/APC temperature control |
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