吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (4): 1063-1071.doi: 10.13229/j.cnki.jdxbgxb20170570

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Integrated pulsation micro mixing chip for three-phase flow

LIU Guo-jun, MA Xiang, YANG Zhi-gang, WANG Cong-hui, WU Yue, WANG Teng-fei   

  1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • Received:2017-06-02 Online:2018-07-01 Published:2018-07-01

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Abstract: To adapt to a more complex mixed system, an integrated three-phase flow pulsation Micro Mixing Chip (MMC) based on piezoelectric actuation technology was proposed. Using the mixing degree as the evaluation index of mixing effect, simulation and optimization analysis were carried out, and the structural parameters and working parameters of the MMC were optimized. A MMC with the size of 100 mm × 50 mm × 50 mm was fabricated by injection molding and bonding processes. In order to test the mixing performance of the chip, experiments of the liquid phase synthesis of silver nanoparticles were carried out. The results show that when the width and the entrance angle of the mixing channel of the MMC is 0.4mm and 120 degree respectively, the working frequency is 200 Hz, and the entrance flow-rate is 3.5 mL/min, silver nanoparticles with average diameter of 29 nm are synthesized by the controllable microfluidic chip, with high productivity, fine morphology and good monodispersity, which demonstrate that the MMC has good mixing performance.

Key words: fluid transmission and control, piezoelectric actuation, three-phase flow, pulsating mixing, silver nanoparticles

CLC Number: 

  • TN384
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