一、前言从前,我厂曾经以触媒层温度为主环,进行过甲醇变换炉自动控制试验,由于变换炉控制扰动因素较多,而一般调节器功能简单,交换炉控制效果不甚十分理想。随着仪器仪表技术高速发展,于是,我们才有可能采用高精度、高稳定性的在线分析器和多功能SLPC可编程调节器,组成具有负荷前馈的H_2/CO比值控制系统,应用 First, the foreword In the past, our factory once took the catalyst layer temperature as the main ring, carried on the methanol conversion furnace automatic control test, because the transformation furnace control disturbance factor is many, but the general regulator function is simple, the exchanger control effect is less than ideal. With the rapid development of instrumentation technology, it is possible to use a high-precision, high-stability on-line analyzer and a multi-functional SLPC programmable regulator to form a H_2 / CO ratio control system with load feedforward.