氯乙烯精馏控制模式的理论分析及实践  

The theoretical analysis and practice of controlling modes for the rectification of vinyl chloride

作　　者：朱锦生[1] 

机构地区：[1]杭州电化集团有限公司,浙江杭州310053

出　　处：《聚氯乙烯》2004年第3期35-39,共5页Polyvinyl Chloride

摘　　要：在对氯乙烯精馏工艺及控制分析的基础上,提出了低沸塔回流、低沸塔釜加热、中间过料、高沸塔回流、高沸塔釜加热、成品冷凝等回路的控制模型。并介绍了用开放的DCS进行的组态、调试过程及达到的效果。因其图形化组态工具直观、灵活、功能强,可使复杂的控制简单化,且控制对工况变化的适应性强,产品质量、生产能力均超过预期值。Based on the analysis of process and control for the rectification of vinyl chloride,the control models for the circuits were proposed,such as the circulation reflux of low-boiler column,the heating of low-boiler column bottom,transportation of intermediates,the circulation reflux of high-boiler column,the heating of high-boiler column bottom,the condensation of prouct,and etc.The configuration,debugging course and the results achieved by using open DCS were introduced.Since the graphic configuration had advantages of clearness,flexibility and powerful function,the complicated control could be simplified,its adaptability to the changes of process conditions was good,and both the product quality and production capacity surpassed the predicted values.

关 键 词：氯乙烯 精馏 控制模型 干扰 前馈 DCS 图形化编程 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]