Coupling Analysis System of Binary Distillation Column
A technology of coupling analysis and rectification tower, which is applied in the field of automatic control, can solve problems such as difficult to use by control engineers, inability to fully obtain system coupling, and difficulty in obtaining dynamic parameters.
Active Publication Date: 2017-07-04
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
Although the calculation process of this method is simple, it cannot fully obtain the global coupling of the system, and it is difficult to obtain dynamic parameters, which is not easy for control engineers to use.
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[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0040] An embodiment of the present invention provides a coupled analysis system of a binary rectification tower. Such as image 3 As shown, the coupling analysis system includes an identification unit, a coupling analysis unit and a data output unit. The identification unit is used to identify the transfer function of the target object according to the target object to be identified; the coupling analysis unit is used to provide the coupling degree of the transfer function according to the coupling method; the data output unit is used to output the coupling degree of the coupling analysis unit . Among them, the system identification unit is used to give the transfer function of the system, the coupling degree determined by the coupling analysis unit is a function of time as an independent variable, and the final coupling degree result is d...
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The invention discloses a binary distillation column coupling analysis system to be used for providing a dynamic coupling analysis method on account of binary distillation columns to meet control engineer analysis requirements. The system comprises an identification unit, a coupling analysis unit and a data output unit. The identification unit is used for identifying a transfer function of the binary distillation column according to the input and output of the binary distillation column to be identified. The coupling analysis unit performs coupling analysis on the transfer function identified by the system identification unit to give the coupling degree. The data output unit is used for outputting the coupling degree of the coupling analysis unit. The system has the advantages that the system is based on the time domain, the calculation is simple, the system can be used by control engineers conveniently, the system can be visual, and the global coupling of the system within the time domain can be given.
Description
technical field [0001] The invention relates to the field of automatic control, in particular to a coupling analysis system for binary rectification towers. Background technique [0002] Distillation is a mass transfer process widely used in chemical industry and oil refining industry. Its purpose is to separate the components in the mixed liquid so that the mixed liquid can reach the specified purity. The distillation column is one of the most important links in the petrochemical production system, and its control analysis is one of the important hotspots in the field of control. The binary distillation column is the most basic and most commonly used distillation device, which can realize the separation function of two components. However, in an actual industrial setting, such as figure 1 In the control model diagram of the binary distillation tower shown, the components to be rectified are separated into heavy components and light components through the control of the r...
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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 靳其兵王涵睿蒋北艳王琪
Owner BEIJING UNIV OF CHEM TECH