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
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 wa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/3/355 |
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| author | Peiru Yan Zhao Zhang Xiaohui Lei Ying Zheng Jie Zhu Hao Wang Qiaofeng Tan |
| author_facet | Peiru Yan Zhao Zhang Xiaohui Lei Ying Zheng Jie Zhu Hao Wang Qiaofeng Tan |
| author_sort | Peiru Yan |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T03:16:04Z |
| format | Article |
| id | doaj.art-901679f7c53a431b9581a24374c3b092 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T03:16:04Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-901679f7c53a431b9581a24374c3b0922023-12-03T15:22:11ZengMDPI AGWater2073-44412021-01-0113335510.3390/w13030355A 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 ChannelPeiru Yan0Zhao Zhang1Xiaohui Lei2Ying Zheng3Jie Zhu4Hao Wang5Qiaofeng Tan6School of Civil Engineering, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaWater Diversion Project Operation and Maintenance Center of Shandong Province, Jinan 250010, ChinaCollege of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaFor 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.https://www.mdpi.com/2073-4441/13/3/355pumping stationopen channelthe control timedischarge variationwater level |
| spellingShingle | Peiru Yan Zhao Zhang Xiaohui Lei Ying Zheng Jie Zhu Hao Wang Qiaofeng Tan 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 pumping station open channel the control time discharge variation water level |
| title | 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | pumping station open channel the control time discharge variation water level |
| url | https://www.mdpi.com/2073-4441/13/3/355 |
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