pH值串级控制在煤粉加压气化技术中的应用  

The Application of pH Valve Cascade Control in Dry Pulverized Coal Pressurization and Gasification

作　　者：程慕鑫[1] 陈展雄[1] 李召召[1] 曹枫[1] 

机构地区：[1]中国船舶重工集团公司第七一一研究所,上海201108

出　　处：《山东化工》2015年第23期76-77,80,共3页Shandong Chemical Industry

摘　　要：由于存在时滞性和非线性等特性,pH值控制一直是工业上控制的难点。本文采用的以pH值控制为主回路,以碱液流量控制回路为副回路的串级控制系统在煤粉加压气化技术中有着良好的应用。The control of pH is difficult in industry for its long time delay and severe nonlinearity. This paper proposes a cascade control loop with the pH control loop of the condition tank ＇s outlet as the primary loop,and NaOH dosing flow control loop as the subaltern loop,which has a good application in dry pulverized coal pressurization and gasification.

关 键 词：PH值控制 串级控制 加压气化 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TQ546.8[自动化与计算机技术—控制科学与工程]