基于DCS控制的精馏系统设计与实现

发布时间：2018-02-02 01:55

本文关键词： DCS 精馏控制系统组态　出处：《河北大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着硬件技术的发展,DCS系统的硬件可靠性进一步增强,人们开始关注DCS系统控制方案及控制算法的优化。本文以精馏塔系统为研究对象,针对西部地区急需的基于DCS的精馏系统设计及运行调试进行研究。首先,根据精馏工艺介绍了精馏塔硬件设备的搭建。重点介绍了精馏塔设备的硬件系统搭建,绘制了工艺流程图,根据不同的被控变量完成了控制方案的设计。其次,根据精馏提纯的工艺要求,基于HOLLiAS-MACS系统,构建了以Ethernet为主,Ethernet、Profibus-DP双网融合的集散控制系统。完成了软件系统的设计,重点介绍了信号处理、流量累计算法、反应釜水位控制以及系统中水泵控制等关键环节的POU程序编写。最后,分别介绍了精馏单元及反应釜单元系统的调试,描述了精馏塔系统的调试过程,并针对DCS调试过程中出现的问题提出了改进措施。
[Abstract]:With the development of hardware technology, people begin to pay attention to the optimization of control scheme and control algorithm of DCS system. The design and operation of distillation system based on DCS are studied in western China. First of all. According to distillation process, the hardware equipment construction of distillation column is introduced. The hardware system construction of distillation column equipment is introduced emphatically, the process flow chart is drawn, and the control scheme is designed according to different controlled variables. Secondly. According to the process requirement of distillation and purification, based on the HOLLiAS-MACS system, Ethernet is constructed. Profibus-DP dual network fusion distributed control system. Completed the design of the software system, focusing on the signal processing, flow accumulation algorithm. Finally, the debugging of distillation unit and reactor unit system is introduced, and the debugging process of distillation column system is described. The improvement measures are put forward in view of the problems in the process of DCS debugging.
【学位授予单位】：河北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ053.5;TP273

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