第35卷第4期 2015年12月
核科学与工程
Nuclear Science and Engineering
Vol.35No.4
Dec.2015
核燃料元件生产线一体化转炉故障树分析与设计
董慧民1，董志民2
00000 摘要：压水堆核电站核燃料元件生产线一体化干燥转化炉(IDR转化炉)承担了水解、还原脱氟等功能的化学反应和物理反应，是干法工艺的关键设备。以往的设计均采用确定论方法，通过保守设计来保证设施的安全。为了更好地实现安全性和经济性，建立了以一体化干爆转化炉（IDR转化炉）的泄漏中毒为顶事件的故障树，并利用计算机软件进行分析。结果表明，导致干法转化炉泄漏从而引发人员中毒的主要因索为不可靠的通风系统和检测系统报警不及时，从而进一步建议在工程设计时，加强针对通风系统的可靠性、有毒有害气体浓度监测设施设计等主要因素的防范设计。提出的建议对今后干法工艺生产线的设计具有较强的借鉴意义，同时引人的故障树方法，可以在燃料元件生产线广泛采用，可确保在干
法工艺核燃料元件生产线设计中各种因索均衡考虑，提高设计水平。关键词：化学危害；防护；核燃料；干法转化工艺；故障树
中图分类号：TL211
文章标志码：A
文章编号：0258-0918(2015)04-0688-06
Analysis and Design of Fault TreeforIntegrated DryRoute
FurnaceinNuclearFuelFabricationProcess
DONGHui-min'，DONGZhi-min
(1. Zhengzhou Branch, China Nuclear Power Engineering Co. ,Ltd,Zhengzhou of Henan Prov. 450052, China; 2. Center for Laborites and Training. Puyang Polytechnic College, Puyang of Henan Prov, 457000, China
Abstract: Because of the complex series of the chemical reactions and physical, include hydrolyzation, deoxidization, defluoridation and other changes, the IDR (integrated dry route)furnace is pivotal equipment in PWR NPP (pressurized water reactor nuclear power plant) nuclear fuel fabrication process. Safety was achieved through traditional conservative design, based on deterministic method. The reliability of IDR furnace was estimated by using fault tree analysis (FTA).A release of noxious gases can be lead to the toxic accident, which is the top event of this fault tree for of IDR furnace. The process is studied and a logic diagram is constructed that documents all the various mechanisms that can be lead to a release of poison. It was qualitative and quantitative analyzed through software. It was found that failing in aerator and delay for warning
收稿日期：2014-10-22：修回日期：2015-05-08
作者简介：董慧民（1974一），男，河南濮阳人，高级工程师，硕士，现主要从事核工程安全设计工作 688