流体机械2017，Vol.45Issue(8)：6-9,18,5.DOI:10.3969/j.issn.1005-0329.2017.08.002
基于叶轮压水室特性匹配的离心泵作透平的性能预测
Performance Prediction of a Centrifugal Pump as Turbine Based on Rotor-olute Matching Principle
黄思 1何婧 1舒亚篮 1区国惟2
作者信息
- 1. 华南理工大学,广东广州510640
- 2. 广东省佛山水泵厂有限公司,广东佛山528000
- 折叠
摘要
Abstract
Pump as turbine (PAT) can recycle the energy conveniently and quickly,and has significant application value in the industry and agriculture.The precondition of PAT application is to understand the conversion factors of performance parameter between the pump mode and the turbine mode for a centrifugal pump.The PAT rotor characteristic equation was deduced in this paper,based on Euler equation of rotomachinery and velocity relations of rotor inlet and outlet.According to the principle of characteristic matching between impeller and volute in a centrifugal pump,the formula was obtained for predicting the optimal point parameters such as flow rate and head of PAT.The performance prediction method is universal and practical,only needs the geometry parameters of rotor and volute without restriction in specific speeds.The prediction method was validated by experiment results of PAT,and the errors between prediction and experiment results were within the tolerance of engineering.That indicates the performance prediction method developed in this paper is feasible and can provide theoretical tool in selection and operation of PAT.关键词
PAT/性能预测/特性匹配/换算系数Key words
PAT/performance prediction/characteristic matching/conversion factor分类
机械制造引用本文复制引用
黄思,何婧,舒亚篮,区国惟..基于叶轮压水室特性匹配的离心泵作透平的性能预测[J].流体机械,2017,45(8):6-9,18,5.
