压水堆核电站元件生产制粒、压制工序改进设计

Design for Improving Operational Sequence of Granulation and Compression in Production of Elements for PWR Nuclear Power Station

概括介绍了压水堆核电站燃料元件二氧化铀芯块制粒、压制工序的生产任务、工艺流程、照射剂量的现状,详细分析了照射剂量超标的原因,提出了解决照射剂量超标的对策措施,并概述了改进设计的效果评价。

The paper presents the production tasks, process flow and current exposure dose for the operational sequence of UO2 pellet granulation and compression in the production of fuel elements for PWR nuclear power station, analyzes in detail the cause of how its exposure dose is beyond the standard, provides some counter-measures to solve the problem of exposure dose exceeding the standard, and briefs the evaluation of effect of improved design.