A system reliability evaluation method for nuclear power equipment

Abstract

The invention belongs to the technical field of system reliability analysis and design, and particularly discloses a nuclear power equipment system reliability assessment method, which comprises the following steps: firstly, carrying out fault mode and influence analysis on equipment according to functional structure decomposition and related fault information of nuclear power equipment; establishing a fault tree model of the equipment based on a fault tree analysis method; then, establishing a reliability prediction and distribution model of the equipment; establishing a reliability analysismodel considering common cause failure; On the basis of previous analysis, after maintenance factors in the service period are considered, a maintenance strategy analysis model based on reliability isestablished to formulate a periodic maintenance strategy; and finally, based on a human factor engineering simulation platform, establishing an equipment inspection and maintenance simulation model to analyze a specific inspection and maintenance process. The model established by the invention can provide important reference and guidance for actual nuclear power equipment design, operation, maintenance planning and the like.

Description

technical field [0001] The invention belongs to the technical field of system reliability analysis and design, and in particular relates to a system reliability evaluation method for a nuclear power plant equipment cooling water system. technical background [0002] Compared with traditional energy and other renewable energy, nuclear power is a renewable energy that can be supplied continuously and stably on a large scale. The development of nuclear power plays an important role in the realization of my country's energy structure adjustment, energy conservation and emission reduction, and smog control. However, there are huge potential risks in the nuclear power industry. Once an accident occurs in the production, transportation and power generation of nuclear fuel, not only will the harm be fatal, but it will also cause major social impact. Therefore, for the equipment system in each link of the nuclear power industry, its safe operation and reliability evaluation are the ...

AI Technical Summary

Problems solved by technology

Based on the above method, the system reliability analysis of nuclear power equipment can be carried out, but the inspection and maintenance of nuclear power equipment cannot be analyzed

In addition, these methods cannot consider the influence of common cause failure of components on the reliability of nuclear power equipment. However, common cause failure exists in complex nuclear power equipment, and its impact on the reliability of complex nuclear power equipment cannot be ignored

Images