蒸汽发生器干燥器声疲劳试验模型仿真研究  

Research on acoustic fatigue experimental models of the dryer in steam generators

作　　者：李奇 张锴[2] 祖洪彪[2] 

机构地区：[1]上海海基盛元信息科技有限公司,上海200235 [2]上海核工程研究设计院,上海200233

出　　处：《核技术》2013年第4期113-116,共4页Nuclear Techniques

摘　　要：随着核电厂采用提升功率的方式提高发电效益,蒸汽发生器中的干燥器部件容易受到较高的脉动压力载荷而导致声疲劳。本文介绍了蒸汽发生器干燥器声疲劳试验方案:蒸发器上腔室缩比模型研究。利用计算声学软件ACTRAN进行仿真分析,研究试验装置内部声载荷分布特征。研究结果为后续试验测点布置提供技术支撑。Background： When upgrading the reactor power to promote the power efficiency of nuclear power plants, the BWR steam dryer is easier to be damaged by high cycle pulsating pressure, which is called acoustic fatigue problem. Purpose： An acoustic fatigue experimental schemes in steam generators is designed to study the acoustic load on the steam dryer. Methods： The acoustical computational software ACTRAN has been applied to simulate the acoustic pressure distribution inside scaled model of the upper chamber of steam generators. Results： Sound pressure level contour distributions at different frequencies are predicted. Conclusions： Sound pressure level contour distribution at mid-frequency is heterogeneous which is different with the low frequency one.

关 键 词：核电 干燥器 声疲劳 ACTRAN 

分 类 号：TB534.3[理学—物理] TM623.8[理学—声学]