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介绍了对焊钻杆热处理预测控制系统 .系统对升温保温全过程实现闭环控制 .温度检测采用红外测温仪 ,针对热处理过程不同阶段钻杆的辐射系数不同 ,采用自动补偿的方法 ,使红外测温仪能准确检测不同辐射系数的钻杆温度 .控制算法采用 β_GPC ,实际运行表明该方法的有效性 .
The control system of the heat treatment of the welding rod is introduced.The closed loop control of the whole process of the heat preservation and temperature keeping is realized.The temperature measurement uses the infrared pyrometer.According to the different radiation coefficient of the drill pipe in different stages of the heat treatment process, Thermometer can accurately detect the different emissivity of the drill rod temperature control algorithm using β_GPC, the actual operation shows the effectiveness of the method.