Inspection and Evaluation Strategies for Fuel Assemblies after Un-expected Stress
There is a risk that fuel assemblies are subject to unexpected forces during the transfer process.In re-cent years,various power plants have also experienced incidents in which fuel assemblies were subject to unex-pected forces during the transfer of spent fuel pools.Therefore,it is necessary to study the inspection and eval-uation strategies for such events.This article analyzes the potential impact on the normal operation of the subse-quent reactor core after the fuel assembly is subjected to unexpected forces,and proposes a systematic inspection process and purpose for similar events based on related impacts.The visual inspection,resistance plug and control rod mating test,offline sip inspection,stress analysis and other means are carried out to con-firm the structural integrity of the fuel assembly that needs to be returned to the reactor.The inspection meth-ods provided in this article provide systematic support for avoiding such incidents and handling similar incidents.The handling of specific incidents can be carried out according to the on-site conditions.
related componentsfuel assembliesvisual inspection
NETL
NSTL
万方数据
