scholarly journals Simulation of raindrop-shaped flow tube valveless piezoelectric pump

2019 ◽  
Vol 1314 ◽  
pp. 012047
Author(s):  
Ming Tang ◽  
Qibo Bao ◽  
Jianhui Zhang ◽  
Liyi Lai ◽  
Qingshuang Ning
Keyword(s):  
Flow Tube ◽  
Piezoelectric Pump ◽  
Valveless Piezoelectric Pump

Theory and experimental verification of spiral flow tube-type valveless piezoelectric pump with gyroscopic effect

2013 ◽  
Vol 195 ◽  
pp. 1-6 ◽  
Author(s):  
Xue-fei Leng ◽  
Jian-hui Zhang ◽  
Yan Jiang ◽  
Jin-Yuan Zhang ◽  
Xue-cheng Sun ◽  
...  
Keyword(s):  
Experimental Verification ◽  
Spiral Flow ◽  
Flow Tube ◽  
Gyroscopic Effect ◽  
Piezoelectric Pump ◽  
Tube Type ◽  
Valveless Piezoelectric Pump

scholarly journals Experimental Verification of the Pumping Effect Caused by the Micro-Tapered Hole in a Piezoelectric Atomizer

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2311 ◽  
Author(s):  
Jianhui Zhang ◽  
Qiufeng Yan ◽  
Jun Huang ◽  
Chuanyu Wu
Keyword(s):  
Flow Resistance ◽  
Experimental Results ◽  
Environmental Scanning ◽  
Rate Measurement ◽  
Flow Tube ◽  
Piezoelectric Pump ◽  
Pumping Effect ◽  
Measurement Experiment ◽  
Valveless Piezoelectric Pump ◽  
Tapered Hole

In this study, we examined the use of a dynamic micro-tapered hole as a micro-scale tapered flow tube valveless piezoelectric pump. Firstly, we obtained photographs of a micro-tapered hole by using an environmental scanning electron microscope (ESEM). Then, we explained the pump effect of the micro-tapered hole, and derived the atomization rate equation. Furthermore, we reported an atomization rate measurement experiment that eliminated the atomization caused by a pressure increase, and demonstrated that a change in the volume of a micro-tapered hole could produce atomization. The experimental results indicate that, under the same voltage, the forward atomization rate is much higher than the reverse atomization rate and that the atomization rate increases with the micro-tapered hole volume. The experimental results show that the atomization of the micro-tapered aperture atomizer is caused by its pumping effect. Moreover, the flow resistance and volume of the micro-tapered hole can affect the atomization rate.

The characters exploration of a piezoelectric pump with fishtail-shaped bluffbody

2021 ◽  
pp. 1045389X2110386
Author(s):  
Yi Hou ◽  
Lipeng He ◽  
Zheng Zhang ◽  
Baojun Yu ◽  
Hong Jiang ◽  
...  
Keyword(s):  
Flow Rate ◽  
Preliminary Investigation ◽  
Maximum Flow ◽  
Theoretical Explanation ◽  
Maximum Flow Rate ◽  
Bluff Bodies ◽  
Conical Flow ◽  
Piezoelectric Pump ◽  
Valveless Piezoelectric Pump ◽  
Shape And Size

This paper focuses on a new structure in the valveless piezoelectric pump, which has a combination structure of the conical flow channel and two fishtail-shaped bluffbodies in the chamber of the pump. The fishtail-shaped bluffbody is inspired by the shape of the swimming fish to diminish the backflow and optimize the performance of the pump. The performance is studied by changing the shape and size of the inlet and outlet, the bluff bodies’ height and the space between two bluff bodies. The results show that the 3 mm × 3 mm square inlet, 3 mm diameter round outlet, 3 mm height of bluffbodies, 6.8 mm pitch of bluffbodies has a best performance in all 10 prototypes, which implements a maximum flow rate of 87.5 ml/min at 170 V 40 Hz with a noise of 42.6 dB. This study makes a preliminary investigation and theoretical explanation for the subsequent optimization of this structure, improved the performance of the valveless piezoelectric pump, broaden the thinking of the design for the bluffbody for better performance of the valveless piezoelectric pump.

Design and experiment of valveless piezoelectric pump with triangular prism bluff body

2016 ◽  
Vol 24 (2) ◽  
pp. 327-334
Author(s):  
张蕊华 ZHANG Rui-hua ◽  
张建辉 ZHANG Jian-hui ◽  
朱银法 ZHU Yin-fa ◽  
胡笑奇 HU Xiao-qi
Keyword(s):  
Bluff Body ◽  
Triangular Prism ◽  
Piezoelectric Pump ◽  
Valveless Piezoelectric Pump

Structural-fluid coupling simulation and experimental verification on valveless piezoelectric pump

2016 ◽  
Vol 24 (1) ◽  
pp. 112-118
Author(s):  
曾 平 ZENG Ping ◽  
李立安 LI Li-an ◽  
胥 锋 XU Feng ◽  
刘国君 LIU Guo-jun ◽  
温建明 WEN Jian-ming
Keyword(s):  
Experimental Verification ◽  
Piezoelectric Pump ◽  
Fluid Coupling ◽  
Valveless Piezoelectric Pump

Research on double-outlet valveless piezoelectric pump with fluid guiding body

2020 ◽  
Vol 302 ◽  
pp. 111785 ◽  
Author(s):  
Bangcheng Zhang ◽  
Yong Huang ◽  
Lipeng He ◽  
Quanwen Xu ◽  
Guangming Cheng
Keyword(s):  
Piezoelectric Pump ◽  
Valveless Piezoelectric Pump

scholarly journals Design and Experimental Verification of a PZT Pump with Streamlined Flow Tubes

2019 ◽  
Vol 9 (18) ◽  
pp. 3881 ◽  
Author(s):  
Ming Tang ◽  
Qibo Bao ◽  
Jianhui Zhang ◽  
Qingshuang Ning ◽  
Chaobin Chen ◽  
...  
Keyword(s):  
Flow Rate ◽  
Flow Resistance ◽  
Maximum Amplitude ◽  
Maximum Flow ◽  
Flow Stability ◽  
Rate Equations ◽  
Flow Tube ◽  
Piezoelectric Pump ◽  
Streamlined Flow ◽  
Frequency Relationship

In this paper, a streamlined flow tube valveless piezoelectric pump (SLFT PZT pump) is proposed to modify the single flow trend and improve the fluid flow stability. Firstly, the structural and working principle of the streamlined flow tube, which accounts for changing the flow trend and improving the flow stability, were analyzed. The flow resistance and flow rate equations were established. Secondly, the pressure and velocity fields of the tube were simulated. These simulated results were consistent with the theoretical results. Thirdly, the flow resistance of the flow tube was tested with pressure differences of 1000 Pa, 1200 Pa, 1400 Pa and 1600 Pa respectively. The trend of the result curves was consistent with the simulated results. The amplitude-frequency relationship and the flow-rate-frequency relationship were also tested, both result curves highly corelate. The maximum amplitude was 0.228 mm (10 Hz, 120 V), and the maximum flow rate was 17.01 mL/min (10 Hz, 100 V). Finally, the theoretical flow rate of the SLFT PZT pump was calculated at 100 V and 120 V. These results roughly fitted with the experimental results. The streamlined flow tube could change the internal flow trend that remarkably improved the flow stability. Therefore, it promoted the application of the valveless PZT pump in living cells, biomedical and polymer delivery.

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