摘要
基于Bezier函数叶片造型设计方法,针对AP1000核电常规岛前置泵大容量高参数的特性,提出性能优良的"正弯叶片"和"反弯叶片"两种叶片径向弯曲结构。通过CFD技术并结合试验方法对上述两种径向弯叶片的水力特性进行研究。结果表明:叶片径向弯曲使叶片负荷沿叶高重新分布是提升AP1000前置泵性能的主要因素;在设计工况下,"正弯叶片"相对于传统"直叶片"扬程提高12 m,效率提高0.6%,相对于"反弯叶片"扬程提高17 m,效率提高0.7%,满足AP1000核电机组常规岛前置泵性能提升要求。
This paper proposes two types of radial bending blade （ i. e. ＂. Forward Curved Blade＂ and ＂ Reversed Curved Blade＂ ） based on Bezier function for AP1000 nuclear booster pump with large capacity and high parameters. CFD technology and experimental method are combined to research the hydraulic performance of the two radial bending blades. As the results indicate, due to the blade radial bending, the blade load is redistributed along the blade height, which is the main factor to improve the performance of AP1000 booster pump. Under the rated condition, compared with ＂Straight Blade＂ , ＂Forward Curved Blade＂ enhances the head by 12m, and the efficiency by 0.6% ; compared with ＂ Reversed Curved Blade＂ , it enhances the head by 17m, and the efficiency by 0.7% , which meeting requirements of imDrovin~ the hydraulic performance of AP1000 nuclear booster Dural3.
出处
《华东电力》
北大核心
2013年第4期857-861,共5页
East China Electric Power
