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Optimization Design of the Impeller Based on Orthogonal Test in an Ultra-Low Specific Speed Magnetic Drive Pump

Author

Listed:
  • Fei Zhao

    (National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
    School of Mechanical Technology, Wuxi Institute of Technology, Wuxi 214121, China)

  • Fanyu Kong

    (National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China)

  • Yisong Zhou

    (National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China)

  • Bin Xia

    (School of Mechanical Technology, Wuxi Institute of Technology, Wuxi 214121, China)

  • Yuxing Bai

    (School of Automotive & Rail Transit, Nanjing Institute of Technology, Nanjing 211167, China)

Abstract

To improve the hydraulic performance in an ultra-low specific speed magnetic drive pump, optimized design of impeller based on orthogonal test was carried out. Blades number Z , bias angle in peripheral direction of splitter blades θ s , inlet diameter of splitter blades D si , and deflection angle of splitter blades α were selected as the main factors in orthogonal test. The credibility of the numerical simulation was verified by prototype experiments. Two optimized impellers were designed through the analysis of orthogonal test data. The internal flow field, pressure fluctuation, and radial force were analyzed and compared between optimized impellers and original impeller. The results reveal that impeller 7 ( Z = 5, θ s = 0.4 θ , D si = 0.75 D 2 , α = 0°) could increase the head and efficiency, compared to the original impeller, by 2.68% and 4.82%, respectively. Impeller 10 (Z = 5, θ s = 0.4 θ , D si = 0.55 D 2 , α = 0°) reduced the head by 0.33% and increased the efficiency by 8.24%. At design flow rate condition, the internal flow of impeller 10 was the most stable. Peak-to-peak values of pressure fluctuation at the volute tongues of impeller 7 and impeller 10 were smaller than those of the original impeller at different flow rate conditions (0.6 Q d , 1.0 Q d and 1.5 Q d ). Radial force distribution of impeller 10 was the most uniform, and the radial force variance of impeller 10 was the smallest.

Suggested Citation

  • Fei Zhao & Fanyu Kong & Yisong Zhou & Bin Xia & Yuxing Bai, 2019. "Optimization Design of the Impeller Based on Orthogonal Test in an Ultra-Low Specific Speed Magnetic Drive Pump," Energies, MDPI, vol. 12(24), pages 1-21, December.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:24:p:4767-:d:297765
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    References listed on IDEAS

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    1. Mostafa Ahmadzadeh & Saeedollah Mortazavi & Mohsen Saniei, 2018. "Applying the Taguchi Method for Investigating the Phase-Locked Loop Dynamics Affected by Hybrid Storage System Parameters," Energies, MDPI, vol. 11(1), pages 1-20, January.
    2. Yun Jia & Xianzhu Wei & Qianyun Wang & Jinsheng Cui & Fengchen Li, 2019. "Experimental Study of the Effect of Splitter Blades on the Performance Characteristics of Francis Turbines," Energies, MDPI, vol. 12(9), pages 1-16, May.
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    Cited by:

    1. Zhenfa Xu & Fanyu Kong & Kun Zhang & Yinfeng Wang & Jiaqiong Wang & Ning Qiu, 2023. "Internal Flow Field and Loss Analysis of a Magnetic Drive Pump’s Cooling Circuit," Energies, MDPI, vol. 16(2), pages 1-18, January.

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