Flow pattern analysis on inlet and outlet conduit of shaft tubular pump system of Pizhou pumping station in South-to-North Water Diversion Project

被引：0
作者：
Xu, Lei [1 ]
Lu, Linguang [1 ]
Chen, Wei [1 ]
Wang, Gang [1 ]
机构：
[1] College of Hydraulic Science and Engineering, Yangzhou University
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2012年 / 28卷 / 06期
关键词：
Computational fluid dynamics; Flow patterns; Hydraulic performance; Inlet conduit; Outlet conduit; Pumps; Shaft tubular pump system;
D O I：
10.3969/j.issn.1002-6819.2012.06.009
中图分类号：
学科分类号：
摘要：
In order to reveal the relationship between the internal characteristics and external characteristics of shaft tubular pump system and to perfect its theory of the optimum hydraulic design, flow patterns of the conduit surface and the sections perpendicular to x, y, z directions for shaft tubular pump system of Pizhou pumping station in Eastern Route of South-to-North Water Diversion Project were analyzed in detail from all angles of view by 3D turbulent numerical simulation. And the numerical simulation results of the flow pattern were verified by both transparent conduit model test and transparent pump system model test. The results of numerical computation and model test came to the conclusions as follows: 1) Flow pattern was uniform and smooth in the inlet conduit of the pump system, and the stream line layers were clear; 2) Flow in the outlet conduit diffused gently in the form of spiral motion, and there was no improper flow such as separation or vortex in the conduit; 3) The main reason of the excellent hydraulic performance of the pump system was due to the excellent internal characteristics. At the main operation points of the pump system, the pump system efficiency exceeded 83%, critical cavitation flow margin was lower than 5 m and the hydraulic performance of the pump system was excellent. The research results provide a beneficial reference for the hydraulic design of pumping stations with low head.
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收藏
页码：50 / 56
页数：6
相关论文
共 20 条
  • [1] Zheng Y., Zhang D., Liao R., Et al., Experiment study on equipment energy characteristic for shaft tubular pump, Drainage and Irrigation Machinery, 21, 3, pp. 31-34, (2003)
  • [2] Chen S., Ge Q., Yan D., Et al., Experiment of energy properties of silo tubular pump set in large-sized pumping station, China Rural Water and Hydropower, 3, pp. 54-56, (2006)
  • [3] Yan J., Zheng Y., Tong C., Et al., Experimental study on model equipment energy characteristic of tubular pump, Pump Technology, 3, pp. 5-7, (2008)
  • [4] Guan X., Shang M., Xie W., Et al., Experimental study on model equipment characteristic of different type of tubular pumps, Pump Technology, 4, pp. 5-8, (2010)
  • [5] Du S., Chen M., Lectotype design of machine set for Shui Kou pumping station in Nanhai, Foshan, Guang Dong Water Resource and Hydraopower, 3, pp. 72-74, (2010)
  • [6] Chen S., Ge Q., Yan D., Et al., Numerical simulation of turbulent flow inside inlet duct and experiment on characteristic performances in shaft tubular model pump set, Transactions of the Chinese Society for Agricultural Machinery, 37, 10, pp. 58-61, (2006)
  • [7] Liu J., Zheng Y., Zhou D., Et al., Analysis of basic flow pattern in shaft fornt-positioned and shaft rear-positioned tubular pump systems, Transactions of the Chinese Society of Agricultural Machinery, 41, SUPPL., pp. 32-38, (2010)
  • [8] Zheng Y., Xiao Y., Liu W., Et al., Numerical simulation and performance prediction for large-sacle shaft-well tubular pump unit, Drainage and Irrigation Machinery, 27, 6, pp. 393-397, (2009)
  • [9] Xiao Y., Zheng Y., Jiang H., Et al., Numerical simulation and optimization of shaft tubular pump device, Water Resources and Power, 28, 2, pp. 143-145, (2010)
  • [10] pp. 42-45, (2006)
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