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Article

A Simple Method for the Control Time of a Pumping Station to Ensure a Stable Water Level Immediately Upstream of the Pumping Station under a Change of the Discharge in an Open Channel

1
School of Civil Engineering, Tianjin University, Tianjin 300072, China
2
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
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Water Diversion Project Operation and Maintenance Center of Shandong Province, Jinan 250010, China
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College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
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College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
*
Author to whom correspondence should be addressed.
Academic Editor: Michael Tritthart
Water 2021, 13(3), 355; https://doi.org/10.3390/w13030355
Received: 31 December 2020 / Revised: 26 January 2021 / Accepted: 27 January 2021 / Published: 30 January 2021
For an open channel with cascade pumping stations, the water level immediately upstream of the pumping station should be kept constant to ensure pumping stability and lining safety. In this study, a simple method was proposed to determine the control time of the pumping station to ensure a stable water level immediately upstream of the pumping station using reverse analysis. The variable discharge process and fixed water level were taken as the upstream and downstream boundaries of the one-dimensional open channel hydrodynamic model, and the discharge process of the pumping station was obtained under ideal conditions. The control time was determined by the equivalent water volume change considering the step change of the discharge of the pumping station. A case study was performed using the Jiaodong water diversion project from Songzhuang sluice to Huibu pumping station (G1–P1), and the effects of the initial discharge, variable discharge, and downstream water level on the control time were investigated. The results show that (1) the larger the initial discharge, the shorter the control time; (2) increasing the upstream discharge reduced the control time, while decreasing the upstream discharge increased the control time; (3) the control time decreased with the increase of the water depth immediately upstream of the pumping station. View Full-Text
Keywords: pumping station; open channel; the control time; discharge variation; water level pumping station; open channel; the control time; discharge variation; water level
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MDPI and ACS Style

Yan, P.; Zhang, Z.; Lei, X.; Zheng, Y.; Zhu, J.; Wang, H.; Tan, Q. A Simple Method for the Control Time of a Pumping Station to Ensure a Stable Water Level Immediately Upstream of the Pumping Station under a Change of the Discharge in an Open Channel. Water 2021, 13, 355. https://doi.org/10.3390/w13030355

AMA Style

Yan P, Zhang Z, Lei X, Zheng Y, Zhu J, Wang H, Tan Q. A Simple Method for the Control Time of a Pumping Station to Ensure a Stable Water Level Immediately Upstream of the Pumping Station under a Change of the Discharge in an Open Channel. Water. 2021; 13(3):355. https://doi.org/10.3390/w13030355

Chicago/Turabian Style

Yan, Peiru, Zhao Zhang, Xiaohui Lei, Ying Zheng, Jie Zhu, Hao Wang, and Qiaofeng Tan. 2021. "A Simple Method for the Control Time of a Pumping Station to Ensure a Stable Water Level Immediately Upstream of the Pumping Station under a Change of the Discharge in an Open Channel" Water 13, no. 3: 355. https://doi.org/10.3390/w13030355

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