流体机械2016，Vol.44Issue(8)：38-44,7.DOI:10.3969/j.issn.1005-0329.2016.08.008
高温熔盐泵中分流叶片对结构动力特性的影响
Influence of Splitter Blades in the Structural Dynamic Characteristics on a High-temperature Molten Salt Pump
摘要
Abstract
To study the structural dynamic characteristics for adding splitter blades on a low-specific-speed centrifugal pump,a molten salt pump of IS50-32-160,working under high temperature,was chosen as the research model. And based on the sequential fluid and structural interaction calculation,the static stress and modal distribution under different temperatures and operating flow rates were analyzed for two impellers schemes,which are with and without splitter blades. The calculation results show that the e-quivalent stress for the rotor reduced significantly by adding splitter blades. And the deformation distribution also improved effec-tively,which indicates that the splitter blade can effectively improve the impeller bearing capacity. Meanwhile,the deformation of the impeller decreases and then the inside flow field distribution is improved. Therefore,the wheel vibrations become lower. In the last,the natural frequency and different modes change slightly with the working temperature.关键词
分流叶片/低比转数离心泵/高温熔盐泵/模态分析/结构动力特性Key words
splitter blade/low-specific-speed centrifugal pump/molten salt pump/modal analysis/structural dynamic character-istics分类
机械制造引用本文复制引用
王业芳,张金凤,袁寿其,黄茜,张霞..高温熔盐泵中分流叶片对结构动力特性的影响[J].流体机械,2016,44(8):38-44,7.基金项目
国家自然科学基金(51009072) （51009072）
