Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

被引:1
|
作者
Zhang, Hongyin [1 ]
Liu, Jianlong [2 ]
Wu, Jinxin [1 ]
Jiao, Weixuan [1 ]
Cheng, Li [1 ]
Yuan, Mingbin [1 ]
机构
[1] Yangzhou Univ, Coll Hydraul Sci & Engn, Yangzhou 225100, Peoples R China
[2] Management Div Qinhuai River Hydraul Engn Jiangsu, Nanjing 210022, Peoples R China
来源
AGRICULTURE-BASEL | 2023年 / 13卷 / 09期
基金
中国国家自然科学基金;
关键词
bulb tubular pump; bulb form; optimization design; numerical simulation; hydraulic performance; PRESSURE FLUCTUATION CHARACTERISTICS; ENERGY-LOSS; FLOW;
D O I
10.3390/agriculture13091698
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A bulb tubular pump unit is a horizontal tubular pump unit composed of a water pump and bulb with an electric motor installed. Electric motors, transmission equipment, and bearings are usually placed in the bulb. The bulb is located in the flow channel and has a relatively narrow space. Therefore, the shape of the bulb has a significant influence on the flow pattern and pump efficiency in the flow channel. In this study, the CFX 19.2 software was employed to optimize the bulb hydraulically according to its geometry and parameters. The research results indicate that the flow pattern at the tail of the elliptical bulb was better, the hydraulic loss at the bulb section was small, and the device efficiency was higher than that at the tail, which was round. The streamlined support had small flow resistance, minimal hydraulic loss, and a high pump unit head and efficiency. Nine schemes were selected, and the geometrical characteristics and parameters of the bulb were determined as follows: the shape of the tail of the bulb was oval, the bulb ratio was 0.96, and the shape of the support parts was streamlined. The results hold important reference significance to improve efficiency and broaden the operating conditions of bulb tubular pump devices.
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页数:18
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