摘要
为深入研究离心泵作透平回收工业余能和开发微型水电,综述了离心泵作透平的研究现状.泵作透平的研究主要采用试验研究、理论分析和数值模拟的方法.总结了泵作透平的主要研究内容:泵作透平的选型及性能预测,特别是透平高效点性能参数的预测;透平过流部件的优化设计与性能提高;透平运行稳定性.着重介绍了泵作透平的选型及性能预测方法:通过试验,获得泵正反转工况的性能参数;基于试验数据,通过理论分析,提出经验公式,得到泵正反转性能参数的关系;CFD技术与试验相结合对泵作透平的性能进行预测.并对离心泵作透平的发展进行了展望,提出今后离心泵作透平的主要研究趋势:准确的选型方法、新的设计理论与方法、振动、非设计工况的稳定运行及大功率多级泵作透平的研究.
PAT（pumps as turbines） is one of the best alternatives for energy recovery.PAT is very important for waste energy resources recovery in industry and the micro-hydropower development in remote areas.In order to further investigation on PAT,the main texts on PAT were briefly reviewed.The available reference materials of research on pumps worked as turbines were mainly conducted based on experimental,theoretical and numerical ways.The relevant research fields of PAT were summarized,such as the optimization design of flow passage components in PAT and performance improvement,the operational stability of PAT,PAT′s type-selection and performance prediction,especially the prediction for BEP（best efficiency point）.Performance parameters of the pumps and PAT were obtained through experiments.The relationship of performance parameters between pumps and PAT was predicted by theoretical analysis and the empirical formulas based on the experimental data.The PAT performance can be determined by comparing the results from CFD prediction and the tests.Finally,the prospect and future tendency of research on PAT was proposed,in which the accurate method of PAT type selection,the new design theory,vibration and off-design operational stability as well as the high-power and multistage PAT study were included.
出处
《排灌机械工程学报》
EI
北大核心
2013年第8期674-680,共7页
Journal of Drainage and Irrigation Machinery Engineering
基金
四川省重点学科建设项目(SZD0412)
流体及动力机械省部共建教育部重点实验室培育项目(SBZDPY-11-7)
西华大学能源与环境学院科研预研项目
关键词
离心泵作透平
研究现状
选型
优化设计
centrifugal pumps as turbines
researching status
type-selection
optimization design
