一种新型控制器——Honeywell Profit Loop在精馏塔控制系统中的应用

Application of a New Controller-- Honeywell Profit Loop in the Rectifying Tower Control System

本文介绍霍尼韦尔公司的PKS（过程知识系统）系统控制中的Profit Loop控制器在云天化公司聚甲醛装置的精馏塔控制系统中的应用。概述了C462精馏塔的工艺流程，分析了控制中存在的主要问题，对该精馏塔控制系统的改进方案、Profit Loop控制器的应用、实施及实施效果进行了重点描述。

The paper introduces the application of Profit Loop controller in PKS of Honeywell Company in the control system of the polyformaldehyde rectifying tower in Yunnan Natural Gas Chemical Industrial Co., Ltd. The paper summarizes the process flow of C462 rectifying tower, analyzes the major problems in the control system and focuses on the amelioration scheme, and the application, implementation and effect of Profit Loop controller.