变角调节技术在小型离心泵流量调节中的应用研究  

Research on the application of variable angle adjustment technology in small centrifugal pump flow control

作　　者：张玉胜[1] 吴建华[1] 孟弯弯 孙毅[1] 

机构地区：[1]太原理工大学水利科学与工程学院,太原市030024

出　　处：《中国农机化学报》2016年第2期237-239,266,共4页Journal of Chinese Agricultural Mechanization

基　　金：山西省国际合作项目(2013081034);山西省水利厅重大水利技术推广与研究项目(SXSZBYHGC-QT-QT-057(2014))

摘　　要：变角调节技术在轴流泵流量调节中应用广泛,为探究变角调节技术在小型离心泵流量调节中的应用,本文通过分析变角调节前后离心泵叶片入口速度三角形的变化关系,并结合泵内部水流运动的特点,推导出流量随叶片入口安放角变化的数学模型。以山西某农村供水工程为例,通过改变叶片的入口安放角,达到调节流量的目的。以期对于面广量大的中国农村供水系统而言,实现其水泵的优化设计和运行。Technology of variable angle adjustment is widely used in the axial flow pump flow control. In order to explore the application of variable angle adjustment technology in small centrifugal pump flow control, the change of velocity triangles at the inlet of a pump caused by blade adjusting has been analyzed, combining with the characteristics of water flow inside the pump, a mathematic model about the design flow and blade inlet angle has been derived. Take a Shanxi rural water supply project as the example, through the change of the blade installation angle of entrance, has achieved the purpose of flow control. With a view to wide-ranging large volume of China rural water supply systems, it can achieve the optimal design and operation of the pump.

关 键 词：变角调节 流量调节 速度三角形 数学模型 农村供水 

分 类 号：TH311[机械工程—机械制造及自动化]