多功能水泵模型及装置模型试验台的开发  

Development of multi-function experimental platform for pump and devices model

作　　者：郎涛[1] 施卫东[1] 马新华[1] 张德胜[1] 邹萍萍[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《排灌机械》2009年第6期379-383,共5页Drainage and Irrigation Machinery

基　　金：江苏省科技服务业计划资助项目(BM2008375);江苏高等学校优秀科技创新团队计划项目(苏教科[2009]10号)

摘　　要：介绍了江苏大学流体中心实验室DN500 mm多功能水泵模型及装置模型试验台的主要技术指标及系统构成,分析了提高测试精度的方法.利用不确定度理论,验证试验台精度.根据一台比转速为500的模型泵在某一工况点重复测量得到的10组性能试验数据,计算各测量量的A类不确定度;对测量仪器仪表精度进行分析,得到B类不确定度.将A类和B类不确定度分量合成,得出该水泵模型效率测量的不确定度为0.25%,优于水利行业标准SL 140—2006中规定的0.40%.分析表明,水力循环系统、测量控制系统是影响试验台测试精度的主要因素,该试验台具有较高的测试精度,能满足多种用途的试验需求,对提高我国泵行业整体制造水平、模型泵及装置试验研究水平具有重要的意义.A multi-functional experimental platform for pump and device model DN 500 mm （Technical and Research Center of Fluid Machinery Engineering, Jiangsu University）was introduced with its main technical specifications and system structure. The methods to improve precision were analyed, and the precision was tested by uncertainty theory. During this platform development, 10 groups of performance data were got by repeated measuring a model pump with 500 specific speed at same state, then uncertainty of type A was obtained. From precision analysis of measuring instrument, uncertainty of type B was ob- tained. Combining type A with type B component, the uncertainty of this pump model is 0.25%, less than 0.40% of Water Industry Standard SL 140--2006. The analysis shows that main influence factors on the platform test precision are water-cycle system and measurement-control system. This experimental platform has adequate measurement accuracy and can meet the needs of various kinds of experiment. It has a great significance in improving the manufacturing level of the related pump industry and research lever on pump and device model.

关 键 词：水泵 试验台 不确定度 模型 测量 

分 类 号：TH311[机械工程—机械制造及自动化]