Wireless detection system and method for measuring inner-state parameters of reactor core simulation device

Abstract

The invention provides a wireless detection system and method for measuring inner-state parameters of a molten salt reactor core simulation device. The system comprises at least one spherical detection device, wherein the spherical detection device is placed in a reactor core container, comprises a spherical shell, an active RFID electronic tag and fillers, the spherical detection device and a spherical simulation fuel element have the same design parameters, the active RFID electronic tag is arranged in the spherical shell, and the fillers are filled between the spherical shell and the active RFID electronic tag. The active RFID electronic tag comprises a sensor module, a microcontroller and a first wireless transceiving module, wherein the sensor module is used for collecting state parameters of the spherical detection device, the microcontroller is connected to the sensor module, and the first wireless transceiving module is connected to the microcontroller. The wireless detection system further comprises an upper computer and a reader which are arranged outside the reactor core container. By means of the system and method, the inner-state parameters of the reactor core simulation device can be precisely measured in real time on the premise that motion trails of flow fields in the reactor core simulation device and the motion trail of the spherical simulation fuel element are not affected.

Description

technical field [0001] The invention relates to the field of reactor core measurement, in particular to a wireless detection system and method for measuring state parameters in a molten salt reactor core simulation device. Background technique [0002] Core neutron and temperature measuring instruments are usually installed in the core of a nuclear power plant reactor (pressurized water reactor) to measure the core neutron flux and the temperature of the fuel assembly outlet. According to the measured information, the three-dimensional core can be monitored. Reactor operating conditions such as power distribution, core cooling status, etc. [0003] However, in the molten salt cooling pebble bed reactor simulation system, the molten salt reactor uses spherical simulated fuel elements. Since the molten salt reactor core is a flowing pebble bed, it does not change or affect the core flow field and spherical shape. Under the premise of simulating the motion trajectory of the fu...

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Problems solved by technology

[0005] However, the above methods rely too much on the correctness of calculation and modeling, and cannot directly and real-time measure the core temperature and other design parameters in the reactor simulation system, let alone give the trajectory of the spherical simulated fuel element

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