Aging Evaluation of the Inner Lining Wall and Key Structure Component of the Swimming Pool Reactor
The aging of nuclear reactor is one of the key problems for nuclear operation safety.The swimming pool reactor(SPR)in China Institute of Atomic Energy(CIAE)is a typical life-extending research reactor,which is a longest operating reactor in China.It is of great significance for the life-extending application when studying the SPR aging.In this work,we aim to obtain and value the corrosion condition of the inner lining wall(which made by Al)in the pool.It is found that the chemical corrosion of the Al alloy caused by the primary water quality of 49-2 SPR was relatively small.There is no apparently expand and variation of physical properties of spot defects through the underwater camera test.In addition,the X-ray inspection of the bolt in the pool shows that the bolt is basically free of corrosion and no internal crack,which indicates that the primary water leak accident would never happen.The results have important value for the license renewal of 49-2 reactor life-extending operation.
Swimming pool reactorReactor agingCorrosionLife-extending
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