Overhaul plan TIER4 evaluation technology based on shutdown overhaul of refining device

Abstract

The invention relates to the technical field of shutdown maintenance of equipment, in particular to overhaul plan TIER4 evaluation technology based on shutdown overhaul of a refining device, which cancorrectly determine an overhaul strategy so as to evaluate and optimize an overhaul plan of a refining enterprise, improve the pertinence and effectiveness of the overhaul plan, reduce missed overhaul, excessive overhaul and wrong overhaul and improve the overhaul benefit. Meanwhile, the defects caused by an existing maintenance plan submission mechanism and an existing maintenance mode can be overcome, and an enterprise is guided to be gradually converted from a traditional maintenance mode to predictive maintenance, risk maintenance, reliable maintenance and improved maintenance in the aspect of the maintenance mode. The invention comprises (1) Trend (equipment state detection trend). (2) Integrity (process integrity) is carried out; (3) Experty (expert experience), (4) Reliability (based on a reliability management theory), (5) Risk Technology (risk assessment technology application achievements), (6) Regulator (regular inspection laws and regulations and execution standards), (7)Remains (legacy problems).

Description

technical field [0001] The invention relates to the technical field of plant shutdown and overhaul, in particular to a TIER4 evaluation technology for a maintenance plan based on refining and chemical plant shutdown and overhaul. Background technique [0002] As we all know, the characteristics of high temperature, high pressure, and long-term continuous operation of refining and chemical equipment determine that equipment inspection and maintenance is the top priority of enterprise equipment management. Among all kinds of accidents in enterprises, the impact and economic loss caused by fire, explosion, personal injury and environmental pollution caused by equipment failure are very huge. [0003] In recent years, with the continuous expansion of economic scale, my country's oil refining and chemical equipment has been developed on a large scale, and many large refining and chemical bases have been built and put into operation one after another. The degree of reliability is ...

AI Technical Summary

Problems solved by technology

[0005] The existing maintenance mode has the following defects: after-the-fact maintenance cannot avoid direct or indirect losses caused by equipment downtime; preventive maintenance often results in redundant maintenance and increases operating costs

Neither of them can really effectively improve the reliability and efficiency of the system; moreover, the existing maintenance plan reporting mechanism mainly depends on the cognitive level and experience of the enterprise leaders and the technical personnel and management personnel of each operation department of the enterprise, which is relatively subjective and arbitrary. There is no professional and scientific guidance on the selection of maintenance items based on advanced theoretical tools and technologies, and a reasonable determination of maintenance strategies, resulting in the phenomenon of "over-repair" and "disrepair"; The problem of "painful treatment" does not systematically consider the interaction of various equipment, risk transfer, process, operation and other factors, thus ignoring the root cause of equipment failure or failure, resulting in the determined maintenance items not being effective and accurate, leading to " Misrepair” phenomenon occurs

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