Method for developing risk monitoring model of high-temperature gas cooled reactor nuclear power plant with two reactors with one machine

Abstract

The invention relates to the technical field of risk monitoring of nuclear power plants, and particularly discloses a risk monitoring model development method for a high-temperature gas cooled reactor nuclear power plant with two reactors with one machine, comprising the following steps: S1, analyzing an originating event; s2, event sequence analysis; s3, analyzing a system fault tree; s4, component common cause failure analysis; s5, personnel reliability analysis; s6, quantifying the accident sequence; s7, verifying the model; according to the method, the significant difference between the fourth-generation high-temperature gas cooled reactor and the second-generation pressurized water reactor is comprehensively considered, expansion analysis is carried out on a two-reactor one-machine-carrying mode, a double-reactor average risk model is established, expansion and conversion of a risk monitoring model are carried out, all power plant configurations are reflected, the real-time risk of the power plant can be reflected more truly, and the real-time risk of the power plant is improved. Power plant commissioning modes, equipment states (operation or shutdown), environmental factors and the like are reflected in real time, key scientific and technical problems of operation safety management of the high-temperature gas cooled reactor nuclear power plant are solved, and support is provided for safe, stable and economical operation of the high-temperature gas cooled reactor nuclear power plant.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant risk monitoring, in particular to a method for developing a risk monitoring model of a high-temperature gas-cooled reactor nuclear power plant with two reactors and one machine. Background technique [0002] As a demonstration power plant, the high temperature gas-cooled reactor nuclear power plant demonstration project has a large room for optimization in its design and operation management. Identifying its weak links and optimizing its operation safety management through probabilistic safety analysis technology can effectively improve the unit economy and safety level. As a new type of reactor, the high temperature gas-cooled reactor core design and its unique inherent safety are quite different from traditional pressurized water reactors. The probabilistic safety analysis framework and risk criteria adopted by pressurized water reactors are not suitable for high temperature reactors,...

AI Technical Summary

Problems solved by technology

As a new type of reactor, the high temperature gas-cooled reactor core design and its unique inherent safety are quite different from traditional pressurized water reactors. The probabilistic safety analysis framework and risk criteria adopted by pressurized water reactors are not suitable for high temperature reactors, resulting in The PWR risk monitoring model development technology based on active probabilistic safety analysis cannot be directly applied to high-temperature gas-cooled reactors

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