Searching methd and system for reasons of fault event in process industry

Abstract

The invention relates to a searching method and system for reasons of a fault event in the process industry. According to the invention, a basic reason resulting in the fault event is automatically searched and sought according to logic and / or time sequence relationship between pre-set fault events and the fault event, and then the basic reason is presented to a monitor to facilitate the monitor to guide the production more effectively.

Description

technical field [0001] The invention relates to a search method and system for the root cause of failure events in the production process of process industry products. Background technique [0002] The process industry mainly adds value to raw materials through physical or chemical operations such as mixing, separating, crushing, and heating. It includes chemical, paper, steel, food, pharmaceutical and other industries. The final product types are solid, liquid, gas and various forms of energy, usually in batch or continuous production. [0003] The production process of process industry products has the following characteristics: [0004] 1) The product production process can be divided into different processes according to the process; [0005] 2) There are corresponding fault events in each process, such as unqualified material composition indicators, abnormal important process parameters, important equipment operation faults, production operations that do not meet the ...

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Problems solved by technology

[0005] 2) There are corresponding fault events in each process, such as unqualified material composition indicators, abnormal important process parameters, important equipment operation faults, production operations that do not meet the requirements, etc. These fault events not only affect the production in this process, but also lead to The occurrence of failure events in the subsequent process, which causes problems in the quality of the final product

[0007] At present, the method of finding the root cause of failure events in the process industry is usually carried out manually. When a failure event occurs, maintenance personnel or craftsmen need to consult a large amount of production process data including materials, process conditions, and production operations. Finding the root cause of the failure is often time-consuming and laborious. At the same time, it also requires high professional knowledge of maintenance personnel or technicians. They must be familiar with the production process of the product and have a very rich on-site production experience. Operating experience

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