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Experimental Investigation on Transient Pressure Characteristics in a Helico-Axial Multiphase Pump

Author

Listed:
  • Yun Xu

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Shuliang Cao

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Takeshi Sano

    (Takasago R&I Center, Mitsubishi Heavy Industries, Ltd. Takasago, Hyogo 676-8686, Japan)

  • Tokiya Wakai

    (Takasago R&I Center, Mitsubishi Heavy Industries, Ltd. Takasago, Hyogo 676-8686, Japan)

  • Martino Reclari

    (Takasago R&I Center, Mitsubishi Heavy Industries, Ltd. Takasago, Hyogo 676-8686, Japan)

Abstract

In oil and gas exploitation, the multiphase pump is a vital piece of equipment to guarantee production with high efficiency and stable operation. The complicated pattern of multiphase flow in the multiphase pump affects the pump performance; for this reason, the multiphase performance and the inner flow should be sufficiently investigated. In the present work, a liquid-gas multiphase pump is designed and manufactured, and then tested in a specialized test rig to reveal the transient pressure characteristics of the multiphase pump. Results show that the dominant frequency under water and water-air conditions is the blade passing frequency, which is induced by the rotor stator interaction. In the downstream of the impeller, the pressure fluctuation is obviously weakened, because the splitter-blade design could improve the control ability of flow pattern in the downstream region. In comparison with water condition, the pressure fluctuation of water-air condition greatly increases, and the multiples of impeller rotating frequency are stimulated due to the movement and merging of air bubbles. Finally, the correlation of transient pressure and phase distribution in impeller is revealed by using a high-speed camera. With the gradual pressure rise from impeller inlet to outlet, the relative movement and separation of two phases induce violent pressure fluctuations.

Suggested Citation

  • Yun Xu & Shuliang Cao & Takeshi Sano & Tokiya Wakai & Martino Reclari, 2019. "Experimental Investigation on Transient Pressure Characteristics in a Helico-Axial Multiphase Pump," Energies, MDPI, vol. 12(3), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:461-:d:202386
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    References listed on IDEAS

    as
    1. Ming Liu & Lei Tan & Shuliang Cao, 2018. "Design Method of Controllable Blade Angle and Orthogonal Optimization of Pressure Rise for a Multiphase Pump," Energies, MDPI, vol. 11(5), pages 1-20, April.
    2. Liu, Yabin & Tan, Lei, 2018. "Tip clearance on pressure fluctuation intensity and vortex characteristic of a mixed flow pump as turbine at pump mode," Renewable Energy, Elsevier, vol. 129(PA), pages 606-615.
    3. Jinsong Zhang & Lei Tan, 2018. "Energy Performance and Pressure Fluctuation of a Multiphase Pump with Different Gas Volume Fractions," Energies, MDPI, vol. 11(5), pages 1-14, May.
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    Cited by:

    1. Liu, Ming & Tan, Lei & Cao, Shuliang, 2020. "Method of dynamic mode decomposition and reconstruction with application to a three-stage multiphase pump," Energy, Elsevier, vol. 208(C).
    2. Weihua Sun & Zhiyi Yu & Wenwu Zhang, 2022. "Effect of Shear-Thinning Property on the Energy Performance and Flow Field of an Axial Flow Pump," Energies, MDPI, vol. 15(7), pages 1-15, March.
    3. Sina Yan & Shuaihui Sun & Xingqi Luo & Senlin Chen & Chenhao Li & Jianjun Feng, 2020. "Numerical Investigation on Bubble Distribution of a Multistage Centrifugal Pump Based on a Population Balance Model," Energies, MDPI, vol. 13(4), pages 1-15, February.
    4. Huichuang Li & Wenwu Zhang & Liwei Hu & Baoshan Zhu & Fujun Wang, 2023. "Studies on Flow Characteristics of Gas–Liquid Multiphase Pumps Applied in Petroleum Transportation Engineering—A Review," Energies, MDPI, vol. 16(17), pages 1-24, August.

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