The Linkage Control Strategy for the Two-Phase Flow Dispensing System

  • Jinsong Zhang
  • Jianhua Zhang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7507)

Abstract

The fluid dispensing technology has been widely used to deliver all kinds of fluids in electronic industry. This paper first put forward an initial approach based on the direct driving principle to dispense the liquid with a high consistency and precision. According to the direct driving principle, the gas-liquid slug flow should be formed as a stable pattern in the micro-channel while the flow rate ratio between the gas and liquid is in an appropriate range. The linkage control strategy had been done to realize the two-phase flow during the dispensing process. The two-phase flow dispensing system had seven sub-systems for integration to achieve the multi-functions. The control sub-system is the most important unit applying the industry personal computer to connect and control other sub-systems. It undertakes three main tasks, communication, data processing and feed-back control. As a result, the stream of compressed air injected into the continuous liquid stream controlled by the peristaltic pump, the bubbles and droplets appeared in the micro-channel separately and uniformly.

Keywords

linkage control dispensing system direct driving principle two-phase flow 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Zhao, Y.X., Chen, X.D., Chen, X.: A review of fluid dispensing in microelectronic packaging. Hydraulic and Pneumatic 2, 52–54 (2006)Google Scholar
  2. 2.
  3. 3.
    Deng, G.L., Wang, J.Q., Xie, J.H., Peng, Z.Y.: A Adhesive Dispenser Driven by Electromagnetic Attraction. P: CN 201220197Y, ChinaGoogle Scholar
  4. 4.
    Zhang, H.H., Liu, H.Y., Shu, X.Y., Xu, Y.L., et al.: A microflow dispensing apparatus for high viscosity adhesive. P: CN 101190429A, ChinaGoogle Scholar
  5. 5.
  6. 6.
    Chen, X.B., Wang, W.J.: Off-Line Control of Time-Pressure Dispensing Process for Electronics Packaging. Electronics Packaging Manufacturing 26(4), 286–293 (2003)CrossRefGoogle Scholar
  7. 7.
    Hong, B., Wang, H.M., Cao, J.J., Li, X.Q., Li, Z.W.: Research progresses of quantitative dispensing technology. Review and Comment 16, 1–2 (2009)Google Scholar
  8. 8.
    Triplett, K.A., Ghiaasiaan, S.M., Abdel-Khalik, S.I., Sadowski, D.L.: Gas-liquid two-phase flow in microchannels Part I: two-phase flow patterns. International Journal of Multiphase Flow 25, 377–394 (1999)MATHCrossRefGoogle Scholar
  9. 9.
    Pamitran, A.S., Choi, K.-I., Oh, J.-T., Hrnjak, P.: Characteristics of two-phase flow pattern transitions and pressure drop of five refrigerants in horizontal circular small tubes. International Journal of Refrigeration 33, 578–588 (2010)CrossRefGoogle Scholar
  10. 10.
    Yue, J., Luo, L., Gonthier, Y., Chen, G., Yuan, Q.: An experimental study of air-water Taylor flow and mass transfer inside square microchannels. Chemical Engineering Science 64, 3697–3708 (2009)CrossRefGoogle Scholar
  11. 11.
    Agostini, B., Revellin, R., Thome, J.R.: Elongated bubbles in microchannels. Part I: Experimental study and modeling of elongated bubble velocity. International Journal of Multiphase Flow 34, 590–601 (2008)CrossRefGoogle Scholar
  12. 12.
    Saisorn, S., Wongwises, S.: An experimental investigation of two-phase air-water flow through a horizontal circular micro-channel. Experimental Thermal and Fluid Science 33, 306–315 (2009)CrossRefGoogle Scholar
  13. 13.
    Choi, C.W., Yu, D.I., Kim, M.H.: Adiabatic two-phase flow in rectangular microchannels with different aspect ratios: Part II - bubble behaviors and pressure drop in single bubble. International Journal of Heat and Mass Transfer 53, 5242–5249 (2010)CrossRefGoogle Scholar
  14. 14.
    Elcock, D., Honkanen, M., Kuo, C., Amitay, M., Peles, Y.: Bubble dynamics and interactions with a pair of micro pillars in tandem. International Journal of Multiphase Flow 37(5), 440–452 (2011)CrossRefGoogle Scholar
  15. 15.
    Zhao, T.S., Bi, Q.C.: Co-current air-water two-phase flow patterns in vertical triangular microchannels. International Journal of Multiphase Flow 27, 765–782 (2001)MATHCrossRefGoogle Scholar
  16. 16.
    Sun, B., Wang, R., Zhao, X., Yan, D.: The mechanism for the formation of slug flow in vertical gas-liquid two-phase flow. Solid-State Electronics 46, 2323–2329 (2002)CrossRefGoogle Scholar
  17. 17.
    Kim, N.-H., Sin, T.-R.: Two-phase flow distribution of air-water annular flow in a parallel flow heat exchanger. International Journal of Multiphase Flow 32, 1340–1353 (2006)MATHCrossRefGoogle Scholar
  18. 18.
    Li, F.-C., Kunugi, T., Serizawa, A.: MHD effect on flow structures and heat transfer characteristics of liquid metal–gas annular flow in a vertical pipe. International Journal of Heat and Mass Transfer 48, 2571–2581 (2005)MATHCrossRefGoogle Scholar
  19. 19.
    Peng, P., Zhang, J., Zhang, J.: Numerical study on gas and liquid two-phase flow in microchannel used in fluid distribution process. In: 2011 International Conference on Electronic Packaging Technology & High Density Packaging, pp. 756–760. IEEE Press, Shanghai (2011)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Jinsong Zhang
    • 1
    • 2
  • Jianhua Zhang
    • 1
    • 2
  1. 1.School of Mechatronics Engineering and AutomationShanghai UniversityChina
  2. 2.Key Laboratory of Advanced Display and System Applications of Ministry of EducationShanghai UniversityChina

Personalised recommendations