摘要
结合事件树分析和确定论方法对船用堆蒸汽发生器给水减少事件进行了研究,获得了事件的演变过程和处置方案。采用工程评估法确定了初始事件,考虑相关失效和人工干预的影响,综合分析系统和设备的响应得到各后续事件,建立了给水减少的事件树。通过事件序列分析筛选出典型的重要事件序列,利用RELAP5/MOD3程序对其进行了模拟计算与分析。结果表明,反应堆功率、给水减少量和人工干预对给水减少事件的演变过程和结果影响较大,事件处置过程对运行人员要求较高,运行人员干预及时能尽量保证船舶的机动性。
The event tree analysis（ETA）and deterministic method have been jointly applied to the research of marine reactor steam generator feedwater decrease events. The event evolvement and treatment procedures are acquired. The initial events are attained using engineering evaluation method. Considering the multiple failures and human intervening, and analyzing system and component responses, the event trees of all initial events were established. Some representative event sequences were computed using the program RELAP5/MOD3. The study shows that reactor power, the amount of feedwater decrease and human intervening greatly influence the event evolvement and result, and the event treatment is highly relied on the operator. If the operator intervenes in the event in time, the submarine flexibility will be maintained.
出处
《舰船科学技术》
2009年第11期30-33,共4页
Ship Science and Technology
关键词
蒸汽发生器
给水减少事件
事件树分析
运行分析
steam generator
feedwater decrease event
event tree analysis
operational analysis
