湿法烟气脱硫pH值闭环控制系统优化

分析了控制pH值在湿法脱硫系统运行过程中的重要性,针对部分电厂存在pH值测量误差大的问题,在研究比较各种测量方式优缺点的基础上,提出了一种改进的pH测量方式。实际应用结果表明,测量方式的改进对于优化pH值闭环控制具有重要的意义。

Optimization of pH value closed - loop controlling system in wet flue gas desulfurization

The important role of controlling pH value in wet flue gas desulfurization system was introduced and the measurement errors in many thermal power plants were analyzed. Various methods and its advantages and faults have been compared each other. Finally, an improved design was put forward, project practice proved it is of significance for optimizing pH value closed - loop controlling system.