轴流泵站开敞式进水池的数值模拟与技术改造  

Numerical Simulation and Technical Transformation for Open Suction Sump of Axial-Flow Pump Station

作　　者：施高萍[1] 

机构地区：[1]浙江水利水电专科学校,浙江杭州310018

出　　处：《水电能源科学》2012年第1期192-194,123,共4页Water Resources and Power

基　　金：2011年浙江省教育厅青年教师基金资助项目(浙教办高科(2010)175号);2010年度浙江省水利厅科技基金资助项目(RC1024;RC1027);2010年校科研基金资助项目(xky-201010)

摘　　要：以浙江省诸暨轴流泵站为例,基于三维湍流Navier-Stokes控制方程,采用标准κ-ε模型和SIMPLEC算法对轴流泵站进行了数值模拟,分析了开敞式进水池的水流流态和轴流泵叶轮进口断面的轴向流速分布,进而提出了进水池后壁距尺寸优化、管后隔板和后墙隔板3种技术改造方案,并比较了3种技术改造方案下的模拟结果。结果表明,管后隔板为减少该轴流泵站进水池回流的最佳技术改造方案。Taking Zhuji axial-flow pump station in Zhejiang Province for an example, based on 3D turbulent Navier- Stokes equations, standard κ-ε turbulent model and SIMPLEC algorithm is adopted to simulate axial-flow pump station. And water flow regime in open suction sump and section axial velocity distribution of impeller inlet are analyzed. Then three technical transformation schemes are put foreword, such as size optimization of distance between back-wall in suc- tion sump, after-pipe diaphragm and back-wall diaphragm. Compared with the simulated effects in conditions of three technical transformation schemes, the results show that after-pipe diaphragm is the best technical transformation scheme to reduce the backflow of suction sump for axial-flow pump station.

关 键 词：开敞式进水池 轴流泵站 数值模拟 技术改造 回流 

分 类 号：TV675[水利工程—水利水电工程] TV131.4