Radiation protection expert system for nuclear power plant

Abstract

The invention provides a radiation protection expert system for a nuclear power plant. The system includes a nuclear power plant radiation monitoring and early warning module, used to display radiation monitoring data generated by a radiation monitoring system data module and radiation monitoring data generated by a gamma camera radiation monitoring data module in a three-dimensional simulation model of the nuclear power plant. The system also provides a visual three-dimensional radiation monitoring interface. An alarm signal is sent when radiation dose level of a monitored position exceeds awarning value, and the three-dimensional radiation monitoring interface is positioned to an alarm area. The system can realize radiation monitoring of a nuclear power plant, full digitalization of radiation protection design, and three-dimensional visual radiation monitoring of the nuclear power plant.

Description

technical field [0001] The invention relates to the field of radiation protection of nuclear power plants, in particular to an expert system for radiation protection of nuclear power plants. Background technique [0002] In the nuclear energy system, nuclear fission reactions will produce various radioactive substances. With the increase of the operating time of the nuclear power unit, these radioactive substances gradually accumulate in the pipeline, forming radioactive hot spots, causing the staff to be in maintenance, inspection and process Increase in occupational exposure doses. During the entire life cycle of a nuclear power plant, radiation protection of the staff is required to control the collective dose caused by occupational exposure. Collective dose control not only reflects the level of nuclear power plant operation, maintenance and safety management, but also one of the comprehensive indexes of nuclear power plant WANO (World Association of Nuclear Operators) ...

AI Technical Summary

Problems solved by technology

[0003] One aspect of radiation protection is reflected in radiation monitoring. At present, domestic nuclear power plants generally use online radiation monitoring systems and radiation protection personnel to use handheld radiation monitoring equipment to conduct inspections to sort out and monitor hot spots. The radiation monitoring system is divided into multiple types. A measurement channel, the measurement results of which are processed by the server of the radiation monitoring system and displayed in the digital control system (DCS) of the nuclear power plant. The disadvantage is that it can only display the data list, which is not intuitive enough. The radiation monitoring system can only detect the dose level at a fixed position; However, manual inspection has a high degree of freedom, but the measurement data cannot be directly input into the DCS system, which is inconvenient for management

[0004] Another aspect of radiation protection is radiation protection. In the field of nuclear power plant radiation protection technology, there is a flexible shielding material, which is designed with a multi-layer composite structure and prepared as a flexible shielding material, which can be used to protect radioactive components of nuclear power plants. Covered shielding, but because it requires molds, the production cycle is longer, and a large number of hot spots in nuclear power plants still need to be manually searched, which is very labor-intensive

[0005] With the rapid development of intelligence and informatization, more and more nuclear power plants have carried out 3D reverse modeling of all the plants and formed a 3D model database. At the same time, the advanced gamma camera is used in conjunction with the existing radiation monitoring system of the power plant , can form a nuclear power plant radiation hotspot database, but currently there is no complete system that can integrate the above data and functions to achieve an integrated nuclear power plant radiation protection solution

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