A dual-core zero-power device

Abstract

The invention provides a double-core zero-power device, comprising: a water reactor, including a first fuel element, a first core, a first control rod system and a water circuit system, the first core is a pool structure, and the first The control rod system and the water circuit system are connected, the first fuel element is used for the nuclear fuel in the first core, the first control rod system is used to control the first core for zero power experiment, and the water circuit system is used for the first core Supply deionized water; lead stack, including the first fuel element, the second fuel element, the second core, the second control rod system and the safety block system, the second core is connected with the second control rod system and the safety block system, The first fuel element and the second fuel element are used for nuclear fuel in the second core, and the second control rod system and the safety block system are used to control the second core for zero power experiments. The device has the characteristics of inherent safety, flexible and variable core loading, convenient operation, stability and reliability, accurate measurement and good repeatability.

Description

technical field [0001] The invention relates to the field of nuclear radiation, in particular to a dual-core zero-power device. Background technique [0002] The accelerator-driven subcritical system (ADS transmutation system) is to use the high-energy ions generated by the accelerator to bombard the spallation target to generate high-flux, high-energy neutrons to drive the operation of the subcritical core, so as to achieve the transmutation of long-lived high-level nuclear waste into short-lived low-energy nuclear waste. The purpose of releasing nuclear waste while reducing the volume is of great significance for solving the problem of "safe disposal of nuclear waste". At present, there is no precedent for the engineering application of ADS transmutation system in the world. The ADS zero-power device is the premise and basis for the engineering research of the ADS transmutation system, and will obtain a large number of key experimental data of the independent ADS reactor p...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing technical problems, the present invention proposes a double-core zero-power device, which is used to solve whether the physical theory of the critical reactor in the ADS system is applicable, whether the reactor physical calculation model is reasonable, whether the calculation program and nuclear data are reliable, and the reactivity monitoring Whether the means are effective, etc.

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