Helium leakage early warning method, device and equipment for high-temperature gas cooled reactor and storage medium

Abstract

The invention provides a high-temperature gas cooled reactor helium leakage early warning method, device and equipment and a storage medium, and relates to the technical field of nuclear reactors, and the specific implementation scheme is as follows: determining a reference time period according to a time period of a current date in a quarter to which the current date belongs and historical maintenance data of a high-temperature gas cooled reactor; obtaining helium leakage data corresponding to the reference time period and a reference value corresponding to the reference time period; performing normality verification on the helium leakage data corresponding to the reference time period to determine a verification result; under the condition that the verification result is passed, determining that each piece of helium leakage data in the reference time period is target statistical data passing the verification; and determining a response strategy to be adopted currently according to the target statistical data and a reference value corresponding to the reference time period. Therefore, by analyzing the change trend of the helium leakage rate of the primary loop, possible helium leakage can be recognized in advance, the early warning time of leakage monitoring is effectively prolonged, and harmful expansion of a leakage source is avoided.

Description

technical field [0001] The present disclosure relates to the technical field of nuclear reactors, in particular to a method, device, equipment and storage medium for early warning of helium leakage in a high-temperature gas-cooled reactor. Background technique [0002] Because helium is an inert gas and has good heat transfer and heat transfer characteristics, it is often used as a heat exchange medium in the primary circuit of high temperature gas-cooled reactors. However, the leakage of helium from the pressure boundary components of the primary circuit and its connected systems may cause a loss of pressure accident in the primary circuit. If the leak cannot be detected and isolated in time, the primary circuit will be completely depressurized, the reactor coolant will be lost, and the heat from the core cannot be effectively removed, which will trigger a shutdown signal. And the continuous leakage of helium will also cause radioactive pollution in the primary circuit cab...

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Problems solved by technology

However, the above process lacks the monitoring of the process before the helium leakage rate increases to the limit value, and it is difficult to suppress the increase and expansion of the leakage rate in time, which will cause radioactive pollution in the primary circuit cabin

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