Analysis of Sediment Erosion at Suction Side of Double Suction Centrifugal Pump Blade

被引：0
|
作者：
Zhang Y. [1 ]
Zhao Z. [1 ]
Qian Z. [1 ]
机构：
[1] State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2024年 / 55卷 / 02期
关键词：
double suction centrifugal pump; flow field observation; numerical simulation; sediment erosion; suction side of the blade;
D O I：
10.6041/j.issn.1000-1298.2024.02.019
中图分类号：
学科分类号：
摘要：
Sediment erosion of centrifugal pump impeller is a major issue of pumping stations on the Yellow River. The sediment erosion at the outlet of the impeller blade suction side of a double-suction centrifugal pump was mainly analyzed by experiments and numerical simulation. In the experiment, the blade sediment erosion was visualized by using the multi-layer coating method and the near-wall flow pattern were observed by the tuft visualization method coupled with the endoscopic imaging technique respectively. The experimental results showed that there were two triangular severe erosion regions symmetrically distributed at the outlet of the suction side of the blade. In the same regions, the flow separation can also be observed clearly. Furthermore, the Euler Lagrangian method was used to analyze the mechanism for the sediment erosion on the two triangular severe erosion regions. The inter-blade vortex in the pump impeller and the recirculation vortex at the blade outlet were considered responsible for the formation of severe erosion. The inlet-blade vortex can guide sediment particles to aggregate and hit the outlet of the blade suction side. In addition, the recirculation vortex near the outlet of the suction side of the blade made the particles hit the blade repeatedly. Their combined effects lead to severe sediment erosion on the outlet of the blade suction side. The research results can supply theoretical reference for anti-erosion design of centrifugal pump. © 2024 Chinese Society of Agricultural Machinery. All rights reserved.
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页码：202 / 207
页数：5
相关论文
共 23 条
  • [1] ZHU Di, XIAO Ruofu, TIAN Fang, Influence of double suction centrifugal pump volute area ratio on hydraulic performance [J], Transactions of the Chinese Society for Agricultural Machinery, 49, 1, pp. 123-129, (2018)
  • [2] LIU Jun, JIA Bao, TANG Bo, Selection design of high-lift and multi-fluctuation water transfer project in northwest Ghina, China Rural Water and Hydropower, 2, pp. 157-160, (2021)
  • [3] QIAN Zhongdong, WANG Yan, XIE Hua, Influence of back blade on sediment erosion of impeller ring in double suction pump [J], Journal of Hydroelectric Engineering, 31, 4, pp. 232-237, (2012)
  • [4] ZHANG Zichao, Investigation on sediment erosion characteristics of double suction centrifugal pump [D], (2016)
  • [5] WU Yulin, XU Hongyuan, GAO Zhiqiang, Experimental study on motion of solid particles in slurry pump impellers [J], Journal of Tsinghua University (Science and Technology), 32, 5, pp. 52-59, (1992)
  • [6] XU Hongyuan, WU Yulin, DAI Jiang, Et al., Study on distribution of dilute solid particles in centrifugal impeller [J], Journal of Engineering Thermophysies, 15, 3, pp. 288-291, (1994)
  • [7] XU Hongyuan, WU Yulin, GAO Zhiqiang, Et al., Experimental study and numerical analysis of the motion of dilute solid particles in centrifugal pump impellers[J], Journal of Hydraulic Engineering, 28, 9, pp. 13-19, (1997)
  • [8] MEHTA M, KADAMBI J R, SASTRYS, Et al., Particle velocities in the rotating impeller of a slurry pump, ASME/JSME 2007 5th Joint Fluids Engineering Conference, pp. 369-378, (2007)
  • [9] LIU Juan, XU Hongyuan, TANG Shu, Et al., Experimental research on the movement rule of solid particles in centrifugal pump [J], Journal of Hydroelectric Engineering, 27, 6, pp. 168-172, (2008)
  • [10] LIU Juan, XU Hongyuan, TANG Shu, Et al., Numerical simulation of erosion and particle motion trajectory in centrifugal pump [J], Transactions of the Chinese Society for Agricultural Machinery, 39, 6, pp. 54-59, (2008)
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