单神经元PID控制在炼油装置塔顶pH控制中的应用  

Application of Single Neuron PID Control in pH Control of Tower Top in Refining Units

作　　者：徐朝阳[1] 陈江[1] 黄善祥[2] 

机构地区：[1]浙江工业大学化工机械研究所,浙江杭州310014 [2]中国石化湛江东兴石油化工有限公司机动处,广东湛江524012

出　　处：《仪表技术与传感器》2013年第7期74-76,共3页Instrument Technique and Sensor

摘　　要：pH是过程工业中一个常见的控制对象,尤其在炼油装置中对pH的控制尤为重要。文中先分析炼油装置塔顶pH的控制特点,若pH控制不好会对设备产生严重的腐蚀,这样导致设备的寿命有所下降,更影响炼油质量。再通过仿真得出合理的控制算法,能有限减小pH滞后带来的影响。最后通过PLC的编程,实现对整个系统的控制,使改进的算法在实际中得到很好地应用,可有效解决炼油装置塔顶pH控制难的问题。pH is a common controlled parameter in the process industry, and especially it is very important in the refining u- nits. This paper analyzed the characteristic of pH control in the tower of refining units, because it will reduce the life of the equip- ment at the corrosion station without being controlled well, especially influence the quality of petroleum products. Then the paper came up with a better control method according to the simulation between the common and the improved single neuron PID control which could reduce the influence from the long delayed pH value. A better method was used well in the reality with the help of PLC controller to solve the problem of the pH control of the tower top in refining units well.

关 键 词：PH控制 腐蚀 单神经元PID 仿真 PLC实现 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]