在核反应堆安全运行中使用在线监视技术的设想  

An Idea about Applying the Online Surveillance Techniques to Safe Reactor Operation

作　　者：罗征培[1] 李富[1] 王亚奇[1] 刘文锋[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084

出　　处：《核科学与工程》2000年第1期32-38,共7页Nuclear Science and Engineering

基　　金：国家自然科学基金!(196 75 0 2 1;19875 0 2 8)

摘　　要：为确保不超过安全极限 ,监测什么样的变量是反应堆安全保护的关键。时刻监视它离安全限值的裕量有利于克服过剩的保守性。对缺少固定在芯内的中子探测器的情况 ,提议对DNB、芯块熔化、PCI等人们关心的安全极限 ,仍直接监测芯内功率分布 ,提出对压水堆如何设置它的安全整定值的公式 ;论述了实现这设想的先决条件为 :所监测的变量必须是实测的、空间连续的、时间连续的和快速响应的 ,并介绍了为此所开拓的某些方法。In order to ensure not to exceed the safety limits,it is a crux for reactor protection that which variables are monitored. Placing the margins of safety settings under surveillance is helpful to remove their excess conservatism.Without any fixed in core neutron detectors,the paper still proposes to directly monitor the power density distribution in reactor core and lists some formulae to determine its protection settings for DNB,meltdown of fuel pellets and PCI that are concerned in PWRs. The prerequisites for this idea are that variables to be monitored must be measured,space continuous,time continuous and fast responding ones concurrently. To meet them,some methods are developed.

关 键 词：核反应堆 安全整定值 安全运行 在线监视技术 

分 类 号：TL363[核科学技术—核技术及应用]