Method for optimizing reliability and maintenance strategy of chemical refining equipment

Abstract

The invention discloses a method for optimizing reliability and maintenance strategy of a piece of chemical refining equipment. The method comprises the following steps of collecting the historical testing and maintaining data of equipment inside a chemical refining device; carrying out the regression analysis by a failure distribution function for the historical data to obtain the characteristic parameters of the reliability and maintenance of single equipment; establishing a mathematical simulation model of system reliability of the chemical refining device, and collecting the relevant economic parameters of the device; carrying out the system simulation analysis for the chemical refining device by using the mathematical simulation model of system reliability, then obtaining the characteristics parameters of system reliability, usability and maintenance of the device, and then further obtaining the testing and maintaining scheme of the optimized system equipment, such as inspecting and maintaining order, frequency and cost; and obtaining the spare part stock scheme of the optimized system equipment, such as purchasing quantity, purchasing cycle and spare part stock, thus adjusting the equipment managing strategy of the device. The method for optimizing the reliability and maintenance strategy of the chemical refining equipment reduces the unplanned fault rate of the chemical refining equipment, and provides guarantee for long-period safety operation of the chemical refining equipment.

Description

technical field [0001] The invention relates to an optimization method for oil refining and chemical equipment, in particular to an optimization method for the reliability and maintenance strategy of oil refining and chemical equipment. Background technique [0002] At present, the long-term processing of high-sulfur, high-acid value and low-quality crude oil has caused frequent occurrences of domestic refinery equipment such as corrosion, leaks, leaks, and unplanned shutdowns. Factors also make the long-term safe operation of refining and chemical plants face severe challenges. Moreover, in recent years, China Petroleum and Chemical Corporation has established the development strategic goal of building a "world-class" energy and chemical company, requiring the oil refining sector to accelerate the transformation of its development mode and take the lead in reaching the "world-class" level. However, the detection and maintenance of refining and chemical equipment in the pri...

AI Technical Summary

Problems solved by technology

However, the detection and maintenance of refining and chemical equipment in the prior art generally adopts regular testing and maintenance, or repairs the corresponding equipment when a failure occurs, and it is impossible to build all the refining and chemical equipment into a system to improve system reliability and availability. and maintenance performance analysis and evaluation, and then obtain the optimal system equipment detection and maintenance plan, and implement preventive maintenance based on condition detection, thereby reducing maintenance costs

We can only judge the operation status of corresponding equipment based on the experience of workers or experts, and then conduct temporary inspection and maintenance, which will easily reduce the stability of refining and chemical equipment operation, increase the number of shutdowns of refining and chemical equipment, and increase the unplanned equipment failure rate , which increases the risk of refining and chemical equipment operation, and increases the cost of inspection and maintenance of refining and chemical equipment

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