Optimization of the Safety Train Full-life Overhaul for RRI of Nuclear Power Plant
For the maintenance of the safety train load(RRI)of the equipment cooling water system of the M310 nuclear power unit,the unit went down into the refueling cold shutdown and isolated one RRI.After the maintenance,the train was inverted and the other RRI was isolated.In the past,each RRI train needs to be completely isolated and emptied.From the perspective of the actual work of the operators,this paper optimizes the maintenance items of the RRI safety train,so that only one safety train is isolated and emptied in each over-haul,and the other train is isolated and not emptied,which can save 20 hours of drainage and water filling time.This paper analyzes the specific optimization measures,as well as a series of changes that may be brought about by the optimization,and gives targeted measures.This paper analyzes the 3 RRI train B of Unit 3 of Qinshan No.2 Nuclear Power Plant as an example.The optimization of the overhaul schedule has reference significance and can bring great benefits.
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