Acoustic identification method and device for catalytic cracking unit operating status

By collecting and analyzing the acoustic signals of the wing valves in the catalytic cracking unit, the risk coefficient of catalyst runoff and the flow deviation coefficient were calculated, solving the problem of the inability to monitor the operating status of the wing valves and realizing accurate identification of the unit status and stable operation.

CN122306408APending Publication Date: 2026-06-30CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2025-01-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, the operating status of the wing valves in catalytic cracking units cannot be monitored in real time, resulting in an inability to accurately identify the operating status of the unit and affecting the adjustment of process parameters.

Method used

By collecting acoustic signals during the operation of the wing valve, the frequency domain characteristics, energy parameters, and ringing count parameters are analyzed using the support vector machine algorithm and the least squares method. The catalyst runoff risk coefficient and the flow deviation coefficient are calculated to determine the operating status of the wing valve.

Benefits of technology

It enables accurate status identification of catalytic cracking units, guides the adjustment of process parameters, and ensures stable operation of the units.

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Abstract

This invention provides an acoustic identification method and device for the operating status of a catalytic cracking unit. The catalytic cracking unit includes multiple wing valves. The method includes: acquiring acoustic signals during the operation of each wing valve; determining a catalyst runoff risk coefficient for each wing valve based on the acoustic signals; and determining the operating status of the wing valve based on the catalyst runoff risk coefficient. The operating status of the wing valve is used to characterize the operating status of the catalytic cracking unit. The acoustic identification method and device for the operating status of the catalytic cracking unit of this invention have the advantage of accurately determining the status of the catalytic cracking unit, thereby guiding the adjustment of process parameters, providing a basis for production operation, and enabling the catalytic cracking unit to maintain stable production.
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