排灌机械工程学报2013，Vol.31Issue(1)：20-24,5.DOI:10.3969/j.issn.1674-8530.2013.01.005
并联三通全扩散/收缩管无阀压电泵的性能
Performance of parallel double-chamber valveless piezoelectric micro-pump with three-way diffuser/nozzle tube
摘要
Abstract
The fluid-structure interaction ( FSI) method was adopted to simulate the fluid flow in a valveless piezoelectric pump with three-way diffuser/nozzle tube,and then a comparison is made with the experiment results.As the 100 V excitation voltage is applied,the flow rate increases against increasing frequency (50 ~ 175 Hz) ; the maximum error of flow rate between FSI computation and experiment is 12%.At the frequency of 100 Hz the flow rate increases with voltage linearly.The experimental data confirmed such computed results,suggesting the FSI simulation method is feasible for this micro-pump.Moreover a parallel double-chamber valveless piezoelectric micro-pump with three-way diffuser/nozzle tube was designed to improve output flow rate and pressure of the traditional single chamber valveless piezoelectric pump.Effects of difference in phase of the two vibrators on flow rate in the double-chamber micro-pump were analyzed by the FSI method,and the transient flow rate plots in one circle were established under various differences of phase,eventually compared with those of the single-chamber pump.The results indicated the flow rate shows a little change with difference of phase in the parallel double-chamber micro-pump.However,a continuous fluid transport was realized in the double-chamber pump in one cycle,for example,as the difference of phase is 180°,the flow rate is 0.367 mL/min,and as the difference of phase is 360°,the flow rate is 0.349 mL/min.关键词
无阀压电泵/三通全扩散/收缩管/流固耦合/试验对比/并联结构Key words
valveless piezoelectric pump/three-way diffuser/nozzle tube/fluid structure interaction/experiment comparison/parallel structure分类
农业科技引用本文复制引用
邓志丹,李富,何秀华,王健..并联三通全扩散/收缩管无阀压电泵的性能[J].排灌机械工程学报,2013,31(1):20-24,5.基金项目
国家自然科学基金资助项目(51276082) （51276082）
江苏高校优势学科建设工程项目 （）
