吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 818-823.doi: 10.13229/j.cnki.jdxbgxb201603021

• Orginal Article • Previous Articles     Next Articles

Development of dual-entrance piezoelectric pump used in micro fluidic mixing system

LI Li-an1, DONG Jing-shi1, ZENG Ping1, CHENG Guang-ming2, WU Di1   

  1. 1.College of Mechanical Science and Technology, Jilin University, Changchun 130022, China;
    2.Institute of Precision Machinery, Zhejiang Normal University, Jinhua 321004, China
  • Received:2015-03-30 Online:2016-06-20 Published:2016-06-20

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Abstract: Structure design and working principle analysis of dual-entrance piezoelectric pump were carried out, and the relationship between output flow rate and the entrance area was inferred theoretically. The testing system was built and the output performances of single-entrance piezoelectric pump and dual-entrance piezoelectric pump were tested respectively. Testing results show that the maximum flow rate against zero back pressure of the dual-entrance piezoelectric pump is increased by 77.4 mL/min compared with single-entrance piezoelectric pump. The highest output pressure against zero flow rate of the dual-entrance piezoelectric pump is increased by 1.92 kPa compared with single-entrance piezoelectric pump. It is realizable for dual-entrance piezoelectric pump to achieve two kinds of micro fluid mixing. It turns out that the dual-entrance piezoelectric pump could enhance the output performance of single chamber piezoelectric pump, realize the mixing of two kinds of micro fluid, and variable mixing of two kinds of micro fluid by controlling the driving frequency of the pump.

Key words: mechanical design, micro fluid mixing, piezoelectric pump, dual-entrance

CLC Number: 

  • TH38
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