摘要：论文采用自适应阈值、多残差描述故障特征等方法研究鲁棒故障诊断问题。该方法首先采用多层感知机网络建立系统正常工况解析模型,根据不同的故障模式在过程操作单元和控制回路之间故障传播的途径不同,采用多残差描述方法和基于加权移动残差设计各种历史故障特征矩阵,通过与历史故障特征矩阵的匹配度快速诊断故障源。最后利用DAMADICS阀门基准实验平台的19种不同故障模式验证提出的故障检测与诊断方法的有效性。

摘要：设计焦炉气制甲醇项目中甲醇精馏工段加压塔的复杂控制方案,并结合工程经验与相关标准规范,对相关仪表的选型和安装注意事项进行说明。

摘要：介绍可燃气体和有毒气体检测报警系统(GDS)的构成、气体检测器的选型(含最佳检测气体的确定)、指示报警设备的配置,并在某煤制乙二醇项目中,进行应用。同时结合GB50493即将升版,罗列了设计时需注意的几个要点。

摘要：The distillation column with side reactors (SRC) can overcome the temperature/pressure mismatch in the traditional reactive distillation, the column operates at temperature/pressure favorable for vapor-liquid separation, while the reactors operate at temperatures/pressures favorable for reaction kinetics. According to the smooth operation and automatic control problem of the distillation column with side reactors (SRC), the design, simulation calculation and dynamic control of the SCR process for chlorobenzene production are discussed in the paper. Firstly, the mechanism models, the integrated structure optimal design and process simulation systems are established, respectively. And then multivariable control schemes are designed, the controllability of SRC process based on the optimal steady-state integrated structure is explored. The dynamic response performances of closed-loop system against several disturbances are discussed to verify the effectiveness of control schemes for the SRC process. The simulating results show that the control structure using conventional control strategies can effectively overcome feeding disturbances in a specific range.