Radiation measurement and radioactive decontamination device and method for refueling pool of reactor of nuclear power station

By installing radiation measurement, radioactive decontamination and compressed air purge module devices on the reactor replacing pool of nuclear power plant, the problems of low artificial decontamination efficiency and high radiation risk are solved, and more efficient decontamination and lower radiation exposure are achieved.

CN119644398APending Publication Date: 2025-03-18CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD +1
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Patent Information

Application Number
CN202311201495.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-18
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

In the decontamination work of reactor replacing pools in nuclear power plant, manual methods lead to low decontamination efficiency, long decontamination time, and high environmental radiation of the replacing pool, resulting in high doses of operators receiving radiation.

Method used

A device is designed to be installed on a material exchange vehicle, including a radiation measurement module, a radioactive decontamination module and a compressed air purge module, and a fully covered radiation measurement and radioactive decontamination of the material exchange pool are realized through guide rails and a telescopic drive arm.

Benefits of technology

The efficiency of decontamination in the material change pool has been improved, the radiation dose of operators has been reduced, the decontamination time has been reduced, and the radiation protection management level of nuclear power plants has been improved.

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Abstract

The invention provides a nuclear power plant reactor refueling pool radiation measurement and radioactive decontamination device which is installed on a refueling crane and comprises a guide rail arranged on the refueling crane, and a radiation measurement module, a radioactive decontamination module and a compressed air purging module which are installed on the guide rail in a sliding mode. The invention further provides a radiation measurement and radioactive decontamination method for the refueling pool of the reactor of the nuclear power station. The device is compact in structure, has scalability, and can be flexibly installed according to actual working conditions on site. Meanwhile, the refueling crane is used as a carrier, the device moves back and forth through the moving track of the refueling crane, and full-coverage radiation level measurement and radioactive decontamination on the refueling pool are ensured in the mode that the telescopic driving arm and the device guide rail are used for moving up and down and left and right.
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