Method and device for rapidly judging operation stability of chemical industry production device

Abstract

The invention relates to the field of chemical industry manufacturing, and provides a method and device for rapidly judging the operation stability of a chemical industry production device. The method includes the steps of data acquisition, weight allocation, data collection, stable state criterion calculation, real-time data acquisition, data filtering, current stable state value calculation and stability judgment. The device comprises a weight allocation module, a data acquisition module, a data collection module, a data filtering module, a data calculation module and a judgment module. According to the method and device, weight allocation is performed, different variables are comprehensively considered, in a real-time database storage system, acquisition and storage of related data are achieved through a connector with the chemical industry production device, online high-pass filtering and low-pass filtering of key technology control points are achieved through the data filtering module, calculation of a stable state criterion value and a current stable state value is achieved through the data calculation module, and then whether a current operation state is a stable state or an unstable state is rapidly identified through the judgment module.

Description

technical field [0001] The invention relates to the fields of chemical industry, metallurgy, manufacturing and the like, in particular to a method and device for quickly judging the operation stability of a chemical production device used in a continuous production process. Background technique [0002] "Stable, long-term, full and excellent" is an important operational goal of continuous production processes such as petroleum and petrochemical industries. Minor process failures will cause long-term disturbances, affect the normal operation of production, and lead to a decline in product quality. If it continues to develop, process failures can damage production equipment and cause financial losses. Large-scale process failures will not only cause huge property losses, but may also cause casualties and endanger the ecological environment such as air and water. Process fault detection and diagnosis technology monitors the running status of the process, detects faults in tim...

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Problems solved by technology

[0006] Based on the above reasons, most faults have a slow-change and deterioration process before causing serious impacts, that is, after the fault occurs, the process slowly changes according to a certain trend track to reach a new stable state or gradually deteriorates until it collapses, which makes it impossible to detect as early as possible If the fault is detected, the fault will be eliminated in the bud, so that the loss of the fault can not be reduced or even the occurrence of the fault can be avoided, and the "stable, long-term, full and excellent" production process cannot be guaranteed.

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