电子测量与仪器学报

彭衡芾,髙童,董双双,李长武,张东飞,张洪军.流量平衡法微型风扇气动性能测试技术研究[J].电子测量与仪器学报,2021,35(10):184-192

流量平衡法微型风扇气动性能测试技术研究

Study on the micro fan aerodynamic performance testingtechnique with flow balancing method

DOI：

英文关键词:micro fan aerodynamic performance laminar flow flow balancing method P-Q curve

基金项目:浙江省教育厅科研项目（Y202045292）资助

作者	单位
彭衡芾	1. 中国计量大学计量测试工程学院
髙童	1. 中国计量大学计量测试工程学院
董双双	1. 中国计量大学计量测试工程学院
李长武	2. 苏州市计量测试院
张东飞	2. 苏州市计量测试院
张洪军	1. 中国计量大学计量测试工程学院

Author	Institution
Peng Hengfu	1. College of Metrology & Measurement Engineering, China Jiliang University
Gao Tong	1. College of Metrology & Measurement Engineering, China Jiliang University
Dong Shuangshuang	1. College of Metrology & Measurement Engineering, China Jiliang University
Li Changwu	2. Suzhou Institute of Metrology
Zhang Dongfei	2. Suzhou Institute of Metrology
Zhang Hongjun	1. College of Metrology & Measurement Engineering, China Jiliang University

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中文摘要:

为了解决微型风扇气动性能测试系统中微小流量测量和流量自动调节问题,提出了基于流量平衡法的微型风扇气动性能测试技术。基于流量平衡法技术原理,分析了流量平衡法管路系统空气动力特性和流量调节特性。由于采用了流量平衡管路设计,在切换不同工作管道时,整个管路系统总体阻抗基本不变,可通过开启不同测量支路来组合调节流量;理论上并联测量支路根据阀门开关,其流量非“1”即“0”,可以非常方便地组合出所需流量。针对所设计的实验装置进行了流量标定实验、流量调节性能实验和微型风扇气动性能试测,实验结果表明,组合流量调节性能符合预期,微型风扇测试中组合流量调节工作正常, 证明了流量平衡法适用于微型风扇气动性能测试技术。

英文摘要:

To solve technical problems of small flow measurement and automatic flow regulating in micro fan aerodynamic performance testing system, a micro fan aerodynamic performance test technology based on the flow balancing method is proposed. Based on the principle of the flow balancing method, the characteristics of aerodynamic and flow regulating of the pipe system are analyzed. Because of adopting flow balancing method, the overall impedance of the pipeline system is basically unchanged when switching on different working channels, and the intended flow rate can be obtained by combining different measuring branches. Theoretically, according to the valve switching on or off, the flow rate of one of the parallel measuring branches is either “1” or “0”, thus it is very convenient to obtain the required flow rate by combining different branches. Experiments were carried out, including flow calibration, flow regulation performance tests and aerodynamic performance test for a micro fan. The results show that flow regulation performance of the combination method meets the expectation, and the combining flow regulation method works well in the micro fan testing experiment, which proves the practicability of the flow balancing method for the micro fan aerodynamic performance testing technique.

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