Experimental study on hydraulic characteristic around trash rack of a pumping station

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Zhou, Minzhe^1 ; Li, Tongchun^1,2 ; Lin, Xiangyang^3 ; Liu, Xiaoqing^1 ; Ding, Yuan^1 ; Liu, Guangyuan^4

College of Water Conservancy and Hydropower, Hohai University, 1 Xikang Road, Nanjing, China^1

National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, 1 Xikang Road, Nanjing, China^2

Jialing River Tingzikou Water Resources and Hydropower Development Co. Ltd, 208, Xiaojiaba Avenue, Cangxi, Guangyuan, China^3

College of Mechanical and Electrical Engineering, Hohai University, 1 Jinlingbei Road, Changzhou, China^4

关键词: Different operating conditions;    Hydraulic characteristic;    Long-time operation;    Operating condition;    Physical model test;    Preliminary design;    Pumping stations;    Water conveyance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012065/pdf
DOI  :  10.1088/1755-1315/94/1/012065

来源: IOP

【 摘 要 】

This paper focuses on flow pattern around trash rack of intake of a pumping station project. This pumping station undertake the task of supplying up to 3,500,000 m3water per day for a megacity. Considering the large flow rate, high lift, multi-pipe supply and long-time operation in this water conveyance pumping station, we built a physical model test to measure the flow velocity and observe the flow pattern to verify the reasonability of preliminary design. In this test, we set 3 layers of current meters around each trash rack of intake in reservoir to collect the flow velocity. Furthermore, we design 2 operating conditions of 9 pumps to observe the change of flow pattern. Finally, we found the velocity data were in a normal range under 2 different operating conditions of the 9 pump units.