摘要
采用计算流体动力学方法,对蒸汽发生器泥渣收集器进行热工水力计算,旨在得到泥渣收集器内部的流场分布、评估泥渣收集器的性能并计算泥渣收集速率。另外,假定入口有不同直径的外来物颗粒,计算分析泥渣收集器对外来物颗粒的捕集情况。计算结果表明:泥渣收集器对进入其内部的泥渣均能全部收集,但原设计中泥渣收集器中间小孔阻力较大,导致泥渣收集速度较低;改进型泥渣收集器可明显提高收集速率。此外,泥渣收集器对外来物颗粒有一定的捕集效果。计算结果验证了泥渣收集器的设计合理性,并对其设计提出优化建议及方向。
Computational fluid dynamic analysis was used to perform a thermal hydraulic calculation on the sludge collector of steam generator.The flow field distribution inside the sludge collector was achieved,and the sludge collection rate was calculated to evaluate the performance of the sludge collector.The results showed that all the sludge which goes inside the sludge collector can be collected.However,due to the large resistance of the small inlet holes,the sludge collection rate was quite low.The improved type sludge collector can obviously improve the collection rate.The sludge collector has a certain effect on the trapping of foreign particles.The calculation results verify the rationality of the design of the sludge collector,and put forward the optimization suggestions and directions for its future design.
作者
莫少嘉
秦加明
崔素文
杨芝栋
MO Shao-jia;QIN Jia-ming;CUI Su-wen;YANG Zhi-dong(China Nuclear Power Design co.,ltd.(ShenZhen),Shenzhen of Guangdong Prov.518172,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2018年第4期563-568,共6页
Nuclear Science and Engineering
作者简介
莫少嘉(1985—),女,广东汕头人,高级工程师,硕士,现主要从事的蒸汽发生器热工水力分析工作。
