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软测量在检测碳酸化塔中CO2浓度的应用
Application of Soft Measurement for CO2 Concentration in Carbonator Tower
【摘要】 利用自适应滤波辨识的方法 ,构造了联碱碳酸化塔中CO2 浓度的估计器 ,解决了在碳酸化过程中不能在线检测碳酸化塔中CO2 浓度的难题 ,对碳酸化过程的有效控制和节约检测成本有着积极的意义。
【Abstract】 In a carbonator tower, the change of CO 2 concentration can be reflected by the alteration of some other parameters, such as temperature, pressure, and gas flow in the tower. Based on this consideration, an estimator of CO 2 concentration in the tower was formed, which gives the CO 2 concentration by calculating the values of temperature, pressure, and gas flow with an algorithm. Considering the time varying environment of the tower, the estimator was designed with self-adaptive attribute, so that it can work effectively under varying environment. By using the estimator, the value of CO 2 concentration in the tower can be predicted online. It not only provides useful information for control, but also saves the cost for measuring CO 2 concentration.
【Key words】 CO 2 concentration; adaptive identification; Kalman filter; soft measurement;
- 【文献出处】 纯碱工业 ,DRIVE SYSTEM TECHNIQUE , 编辑部邮箱 ,2000年04期
- 【分类号】TQ11
- 【下载频次】36