百万吨级乙烯装置裂解炉先进控制系统设计与应用

乙烯工业 ›› 2021, Vol. 33 ›› Issue (1): 56-61.

百万吨级乙烯装置裂解炉先进控制系统设计与应用

李平¹，许锦²，胡天生²，唐登银²，乔泰²，蔡宏斌¹，李恺如3

1 辽宁科技大学电子与信息工程学院，辽宁鞍山 114051； 2 恒力石化（大连）化工有限公司，辽宁大连 116318； 3 沈阳工业大学电气工程学院，辽宁沈阳 110870

收稿日期:2020-10-19 出版日期:2021-03-25 发布日期:2021-03-24
作者简介:李平，男，1995年毕业于浙江大学工业自动化专业，博士，主要研究方向是工业过程先进控制与优化，教授。基金项目：国家自然科学基金面上项目(61673199)

Design and Application of Advanced Process Control System for Cracking Furnaces in Megaton Ethylene Plant

Li Ping¹, Xu Jin², Hu Tiansheng², Tang Dengyin², Qiao Tai², Cai Hongbin¹, Li Kairu³

1. School of Electronic and Information Engineering, University of Science and Technology, Anshan, Liaoning, P.C.114051;
2. Hengli Petrochemical (Dalian) Chemical Co., LTD., Dalian, Liaoning, P.C.116318;
3. School of Electrical Engineering, Shenyang University of Technology, Shenyang, Liaoning, P.C.110870

Received:2020-10-19 Online:2021-03-25 Published:2021-03-24

摘要/Abstract

摘要：

以恒力石化（大连）化工有限公司1 500 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。并且还介绍先进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。

关键词:

裂解炉 ')">"> 裂解炉 , 先进控制 , 温度控制

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.

Key words: ethylene cracking furnace')">

ethylene cracking furnace, advanced process control/APC, temperature control

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, 33(1): 56-61.

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, 33(1): 56-61.

[1]	彭志荣. 乙烯装置能耗指标分析与优化措施[J]. 乙烯工业, 2021, 33(1): 11-13.
[2]	李智源张金光段忠鑫肖楠王创. 裂解炉急冷器冷却介质优化[J]. 乙烯工业, 2020, 32(1): 54-.
[3]	袁波, 陈德明, 赵莹. 裂解炉燃烧传热优化调整 [J]. 乙烯工业, 2020, 32(1): 56-.