Remote temperature monitoring system for spent fuel dry-type storage concrete storage module

Abstract

The invention discloses a remote temperature monitoring system for a spent fuel dry-type storage concrete storage module, and belongs to the field of spent fuel post-processing in a nuclear power station; the system comprises a temperature detection module, an analog quantity input conversion module, a PLC and an upper computer; the temperature detection module comprises a temperature detection sensor I and a temperature detection sensor II; one end of the temperature detection sensor I and one end of the temperature detection sensor II are respectively connected with one end of the analog quantity input conversion module; the other end of the analog quantity input conversion module is connected with one end of the PLC; and the other end of the PLC is connected with the upper computer. Thesystem realizes centralized processing of dispersed temperature signals; the system is high in safety and reliability and stable and reliable in operation, various faults can be quickly judged and recorded, remote real-time monitoring of the temperature in the high-radiation environment in a storage module is achieved, informatization management of the temperature value in the storage module is achieved, and alarm information and data are recorded for a long time and comprehensively.

Description

technical field [0001] The invention relates to the field of spent fuel reprocessing in nuclear power plants, in particular to a remote temperature monitoring system for spent fuel dry storage concrete storage modules. Background technique [0002] Dry storage of spent fuel is an inevitable choice for the future development of spent fuel reprocessing. After the spent fuel is unloaded from the core, there will be decay heat for a long time, which will affect the storage safety. As a concrete module for storing the spent fuel container in the dry storage process, the internal radiation dose is high, and it is necessary to conduct remote monitoring during the storage period. For temperature monitoring and recording, the problems in the method of manually inspecting the temperature of the module are as follows: the radiation dose is large, which endangers personal safety; the actual temperature inside the concrete cannot be accurately measured; the workload of recording and stat...

AI Technical Summary

Problems solved by technology

After the spent fuel is unloaded from the core, there will be decay heat for a long time, which will affect the storage safety. As a concrete module for storing the spent fuel container in the dry storage process, the internal radiation dose is high, and it is necessary to conduct remote monitoring during the storage period. For temperature monitoring and recording, the problems in the method of manually inspecting the temperature of the module are as follows: the radiation dose is large, which endangers personal safety; the actual temperature inside the concrete cannot be accurately measured; the workload of recording and statistical data is heavy; it is impossible to monitor in real time every Temperature data inside a module

[0003] The temperature monitoring system of the concrete storage module for spent fuel dry storage is a core technology of the auxiliary equipment of the spent fuel dry storage project. There is no similar project and equipment in China before

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