中小合成氨厂氢氮比控制的一种近似方案
An Approximate H/N Ratio Control Scheme for Medium and Small Size Ammonia Plants
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摘要: 本文简要分析了中小合成氨氢氮比控制对象的主要特性，提出在难以准确测得其数学模型的情况下，可采用一种分段控制、串级PI连续调节的近似控制方案，给出了试验数据和使用效果．Abstract: For H/N control in mediun and small ammonia plants,the basic characteristics ofthe controlled objects have been analyzed.And for objects whose mathematical models are hard to determine,a cascade PL analog control scheme is proposed to takecare of each stage of the process.Some experimental data and results are given.
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