Method and system for dynamic fault simulation of double-section type catalytic cracking reaction-regeneralion system

Abstract

A method for dynamic fault simulation of a double-section type catalytic cracking reaction-regeneralion system comprises the steps that 1, a knowledge database is established, and a fault database is integrated; 2, based on DCS data and process model information of an industrial double-section type catalytic cracking device, a dynamic model of the double-section type catalytic cracking reaction-regeneralion system is established, and a dynamic model library of the double-section type catalytic cracking reaction-regeneralion system is established; 3, basic input data under different operating conditions is obtained according to the knowledge database, and steady-state working points for dynamic simulation are calculated; 4, specific fault types are selected from the fault database and converted into input deviations of the dynamic model, and dynamic fault simulation is performed; 5, an intelligent fault analysis module is applied to verify the fault types, simulation results are entered into the fault database to perfect the database. The system for dynamic fault simulation of the double-section type catalytic cracking reaction-regeneralion system comprises a DCS data acquisition module, the dynamic model of the double-section type catalytic cracking reaction-regeneralion system, the knowledge database, the knowledge database and the intelligent fault analysis module.

Description

technical field [0001] The invention relates to the field of industrial process monitoring, in particular to a method and system for dynamic fault simulation of a double-stage catalytic cracking anti-regeneration system. Background technique [0002] With the development of the economy, the demand for petrochemical products is increasing day by day, and the oil refining industry is developing very rapidly. Catalytic cracking has increasingly become an important means of deep processing of petroleum, and occupies a pivotal position in the oil refining industry. In my country, gasoline and diesel components produced by catalytic cracking units account for 80% and 30% of the total gasoline and diesel products in the country, respectively, and the economic benefits of catalytic cracking account for about 2 / 3 of the total economic benefits of each refinery. Therefore, catalytic cracking has become the core technology of my country's oil refining industry. [0003] Catalytic cra...

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Problems solved by technology

[0010] The present invention provides a dual-stage catalytic cracking anti-regeneration system fault dynamic simulation method and system. By reasonably setting the dynamic simulation of abnormal working conditions, analyzing the fault dynamic characteristics of the entire system under abnormal disturbances, obtaining effective fault data, and solving problems in It is impossible to carry out fault experiment research on the actual production equipment to obtain the problem of system fault information

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