Coupled Effects of Hub Diameter Ratio and Blade Angle on the Performance of Spiral Axial Flow Gas Liquid Multiphase Pump

Han, W.; Yang, S. Q.; Li, R. N.; Tian, Y. P.; Yang, T.

doi:10.47176/jafm.17.10.2622

Coupled Effects of Hub Diameter Ratio and Blade Angle on the Performance of Spiral Axial Flow Gas Liquid Multiphase Pump

Document Type : Regular Article

Authors

¹ School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China

² Key Laboratory of Advanced Pumps Valves and Fluid Control System of the Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu 730050, China

³ Key Laboratory of Fluid machinery and Systems, Lanzhou, Gansu 730050, China

⁴ Gansu water resources and Hydropower Survey and Design Research Institute Co., Ltd, Lanzhou, Gansu, 730000, China

10.47176/jafm.17.10.2622

Abstract

In pursuit of enhancing the conveying performance of the spiral axial flow gas-liquid multiphase pump, a comprehensive exploration is conducted to unravel the underlying influence mechanism of impeller structural parameters on gas-liquid separation. This study employs the Box-Behnken design, constructing a sample space that encompasses crucial factors such as impeller hub parameters and blade inclination angle, utilizing Computational Fluid Dynamics software to perform numerical simulations of various models within the sample space. Researching the influence of impeller hub diameter ratio and blade inclination angle on the internal flow of a multiphase pump, aiming to determine high-performance parameters under high gas content conditions with the coupled effects of impeller hub diameter ratio and blade inclination angle. The results indicate that the performance improvement becomes more pronounced when the blade inclination angle (γ) is greater than 2°. For hub structure parameters, the relative size of hub inlet coefficient (k_d1) and hub middle section coefficient (k_d2) is measured using the diameter ratio (kr), where kr ranges from 0.94 to 1.02. After optimization, the impeller hub parameters are k_d1 = 0.77, k_d2 = 0.76, kr = 1.013, γ = 6.95. In comparison with the original model, when the Inlet Gas Volume Fraction is 60%, the gas phase aggregation (λ) at 0.1Span is reduced by 4.5%, the energy dissipation (σ) is decreased by 5.3%, and the efficiency and head coefficient are increased by 2.331% and 0.05, respectively. Therefore, this study has vital theoretical and technical significance for improving the reliability, stability and efficiency of deepwater oil and gas transportation.

Keywords

Main Subjects

Multiphase and Particle-Laden Flows

References

Bratu, C. (1995, October). Two-phase pump transient behaviour. SPE Annual Technical Conference and Exhibition (pp. SPE-30660). SPE. https://doi.org/10.2118/30660-MS

Falcimaigne, J., Brac, J., Charron, Y., Pagnier, P., & Vilagines, R. (2002). Multiphase pumping: achievements and perspectives. Oil & Gas Science and Technology, 57(1), 99-107. https://doi.org/10.2516/ogst:2002007

Gié, P., Buvat, P., Bratu, C., & Durando, P. (1992, May). Poseidon multiphase pump: field tests results. Offshore Technology Conference (pp. OTC-7037). OTC. https://doi.org/10.4043/7037-MS

Grimstad, H. J. (2004). Subsea Multiphase Boosting—Maturing Technology Applied for Santos Ltd’s Mutineer and Exeter Field. Paper SPE 88562 presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 18–20 October. https://doi.org/10.2118/88562-MS

Han, W., Li, X., Su, Y., Su, M., Li, R., & Zhao, Y. (2020). Effect of thickness ratio coefficient on the mixture transportation characteristics of helical–axial multiphase pumps. Applied Sciences, 10(1), 345. https://doi.org/10.3390/app10010345

Kim, J. H., Lee, H. C., Kim, J. H., Choi, Y. S., Yoon, J. Y., Yoo, I. S., & Choi, W. C. (2015). Improvement of hydrodynamic performance of a multiphase pump using design of experiment techniques. Journal of Fluids Engineering, 137(8), 081301. https://doi.org/10.1115/1.4029890

Leporcher, E., Delaytermoz, A., Renault, J. F., Gerbier, A., & Burger, O. (2001, September). Deployment of multiphase pumps on a north sea field. SPE Annual Technical Conference and Exhibition (pp. SPE-71536). SPE. https://doi.org/10.2118/71536-MS

Li, W., Li, Z., Han, W., Li, Y., Yan, S., Zhao, Q., & Chen, F. (2023a). Measured viscosity characteristics of Fe3O4 ferrofluid in magnetic and thermal fields. Physics of Fluids, 35(1). https://doi.org/10.1063/5.0131551

Li, W., Li, Z., Han, W., Li, Y., Yan, S., Zhao, Q., & Gu, Z. (2023b). Pumping-velocity variation mechanisms of a ferrofluid micropump and structural optimization for reflow inhibition. Physics of Fluids, 35(5). https://doi.org/10.1063/5.0149130

Li, Z., Xu, L., Wang, D., Li, D., & Li, W. (2023c). Simulation analysis of energy characteristics of flow field in the transition process of pump condition outage of pump-turbine. Renewable Energy, 219, 119480.https://doi.org/10.1016/j.renene.2023.119480

Liu, M., Cao, S., & Cao, S. (2018a). Numerical analysis for interphase forces of gas-liquid flow in a multiphase pump. Engineering Computations, 35(6), 2386-2402. https://doi.org/10.1108/EC-04-2018-0161

Liu, M., Tan, L., & Cao, S. (2018b). Design method of controllable blade angle and orthogonal optimization of pressure rise for a multiphase pump. Energies, 11(5), 1048. https://doi.org/10.3390/en11051048

Liu, X. D., Farhat, M., Li, Y. J., Liu, Z. Q., & Yang, W. (2023). Onset of flow separation phenomenon in a low-specific speed centrifugal pump impeller. Journal of Fluids Engineering, 145(2), 021206. https://doi.org/10.1115/1.4056213

Ma, X. J, Zhang, Y, & Liu, X. R. (2020). Optimization design of impeller of multiphase pump based on CFD method. Journal of Xihua University（Natural Science Edition）, 39(1), 1–7. https://doi.org/10.12198/j.issn.1673-159X.3126

Ma, X. J., Ni, P. B., & Jia, W. B. (2015). Analysis of effect of Rotational speed on performance of spiral axial flow oil-gas mixed pump. Gansu Science Journal, 27(1), 128-130. https://doi.org/10.16468/j.cnki.issn/1004-0366.2015.01.027

Mohajerani, M., Mehrvar, M., & Ein‐Mozaffari, F. (2012). CFD analysis of two‐phase turbulent flow in internal airlift reactors. The Canadian Journal of Chemical Engineering, 90(6), 1612-1631. https://doi.org/10.1002/cjce.20674

Murakami, M., & Minemura, K. (1980). A theoretical study on air bubble motion in a centrifugal pump impeller. Journal of Fluids Engineering, 102(4), 446-453. https://doi.org/10.1115/1.3240721

Murakami, M., & Minemura, K. (1983a). Behavior of air bubbles in an axial-flow pump impeller. Journal of Fluids Engineering, 105(3), 277-283. https://doi.org/10.1115/1.3240986

Murakami, M., & Minemura, K. (1983b). Effects of entrained air on the performance of a horizontal axial-flow pump. Journal of Fluids Engineering, 105(4), 382-388 https://doi.org/10.1115/1.3241015

Pei, J., Gan, X., Wang, W., Yuan, S., & Tang, Y. (2019). Multi-objective shape optimization on the inlet pipe of a vertical inline pump. Journal of Fluids Engineering, 141(6), 061108. https://doi.org/10.1115/1.4043056

Saadawi, H. (2007, December). An overview of multiphase pumping technology and its potential application for oil fields in the gulf region. IPTC 2007: International Petroleum Technology Conference (pp. cp-147). European Association of Geoscientists & Engineers. https://doi.org/10.3997/2214-4609-pdb.147.iptc11720

Saadawi, H. (2008). Operating multiphase helicoaxial pumps in series to develop a satellite oil field in a remote desert location. SPE Projects, Facilities & Construction, 3(02), 1-6. https://doi.org/10.2118/109785-PA

Shi, G. T., Li, H. L, Liu, Z. K., & Wang, S. (2019a). Effect of hub ratio on flow field characteristics in multiphase pump. Fluid Machinery, 48(5),49-54. https://doi.org/10.3969/j.issn.1005-0329.2020.05.009

Shi, Y., Zhu, H., Yin, B., Xu, R., & Zhang, J. (2019b). Numerical investigation of two-phase flow characteristics in multiphase pump with split vane impellers. Journal of Mechanical Science and Technology, 33, 1651-1661. https://doi.org/10.1007/s12206-019-0317-y

Stel, H., Ofuchi, E. M., Sabino, R. H., Ancajima, F. C., Bertoldi, D., Marcelino Neto, M. A., & Morales, R. E. (2019). Investigation of the motion of bubbles in a centrifugal pump impeller. Journal of Fluids Engineering, 141(3), 031203. https://doi.org/10.1115/1.4041230

Suh, J. W., Choi, Y. S., Kim, J. H., Lee, K. Y., & Joo, W. G. (2017, July). Multiphase flow analysis for air-water bubbly flow in a multiphase pump. Fluids Engineering Division Summer Meeting (Vol. 58042, p. V01AT03A015). American Society of Mechanical Engineers. https://doi.org/10.1115/FEDSM2017-69239

Wang, C., Peng, H., Ding, J., Zhao, B. J., & Jia, F. (2013). Optimization for vortex pump based on response surface method. Transactions of the Chinese Society for Agricultural Machinery, 44(5), 59-65. https://doi.org/10.6041/j.issn.1000-1298.2013.05.012

Wu, C., Zhang, W., Wu, P., Yi, J., Ye, H., Huang, B., & Wu, D. (2021). Effects of blade pressure side modification on unsteady pressure pulsation and flow structures in a centrifugal pump. Journal of Fluids Engineering, 143(11), 111208. https://doi.org/10.1115/1.4051404

Zhang, J. Y., Zhu, H. W., Ding, K., & Qiang, R. (2012, November). Study on measures to improve gas-liquid phase mixing in a multiphase pump impeller under high gas void fraction. IOP Conference Series: Earth and Environmental Science (Vol. 15, No. 6, p. 062023). IOP Publishing. https://doi.org/10.1088/1755-1315/15/6/062023

Zhang, J., Zhu, H., Yang, C., Li, Y., & Wei, H. (2011). Multi-objective shape optimization of helico-axial multiphase pump impeller based on NSGA-II and ANN. Energy Conversion and Management, 52(1), 538-546. https://doi.org/10.1016/j.enconman.2010.07.029