A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for improving flow state of discharged water flow of vertical-face double-layer arrangement type urban drainage pumping station
The invention discloses a method for improving the flow state of discharged water flow of a vertical-face double-layer arrangement type urban drainage pumping station, and the method is characterized in that a multi-stage flat plate is arranged between an upper-layer pump room and a lower-layer pump room of the drainage pumping station so as to dissipate the energy of the discharged water flow of the upper-layer pump room; the first-stage flat plate is provided with a flow dividing ridge and a flow guiding pier so as to achieve the effects of improving the flow distribution uniformity of discharged water flow and improving the flow velocity distribution uniformity of the discharged water flow; the flow blocking ridges with the bottom slotted are arranged at the water outlet ends of the flat plates, so that uniform and gentle falling water flow can be formed, the hydraulic impact influence on the flat plates is reduced, and deposition at the bottoms of the flat plates is prevented. Effective energy dissipation and water flow state improvement can be carried out on discharged water flow of the urban drainage pumping station in the facade double-layer arrangement form, and good engineering application value is achieved for ensuring the structural safety and operation stability of the urban drainage pumping station in the facade double-layer arrangement form. And meanwhile, the drainage pump station is also suitable for popularization and use in design and reconstruction projects of drainage pump stations in a vertical multi-layer arrangement form and other release structures.
本发明公开了一种改善立面双层布置形式城市排水泵站下泄水流流态的方法，通过在排水泵站上下两层泵房之间设置多级平板以起到对上层泵房下泄水流进行消能的作用，在第一级平板设置分流坎和导流墩以起到提高下泄水流流量分配均匀性和改善下泄水流流速分布均匀度的作用，在各平板出水端设置底部开缝的挡流坎有利于形成均匀平缓的跌落水流以降低其对平板的水力冲击影响和预防平板底部的淤积。本发明能够对立面双层布置形式城市排水泵站的下泄水流进行有效消能和改善水流流态，对于确保立面双层布置形式城市排水泵站的结构安全性和运行稳定性具有良好的工程应用价值，同时也适于立面多层布置形式排水泵站及其他泄水建筑物设计改造工程中推广使用。
Method for improving flow state of discharged water flow of vertical-face double-layer arrangement type urban drainage pumping station
The invention discloses a method for improving the flow state of discharged water flow of a vertical-face double-layer arrangement type urban drainage pumping station, and the method is characterized in that a multi-stage flat plate is arranged between an upper-layer pump room and a lower-layer pump room of the drainage pumping station so as to dissipate the energy of the discharged water flow of the upper-layer pump room; the first-stage flat plate is provided with a flow dividing ridge and a flow guiding pier so as to achieve the effects of improving the flow distribution uniformity of discharged water flow and improving the flow velocity distribution uniformity of the discharged water flow; the flow blocking ridges with the bottom slotted are arranged at the water outlet ends of the flat plates, so that uniform and gentle falling water flow can be formed, the hydraulic impact influence on the flat plates is reduced, and deposition at the bottoms of the flat plates is prevented. Effective energy dissipation and water flow state improvement can be carried out on discharged water flow of the urban drainage pumping station in the facade double-layer arrangement form, and good engineering application value is achieved for ensuring the structural safety and operation stability of the urban drainage pumping station in the facade double-layer arrangement form. And meanwhile, the drainage pump station is also suitable for popularization and use in design and reconstruction projects of drainage pump stations in a vertical multi-layer arrangement form and other release structures.
本发明公开了一种改善立面双层布置形式城市排水泵站下泄水流流态的方法，通过在排水泵站上下两层泵房之间设置多级平板以起到对上层泵房下泄水流进行消能的作用，在第一级平板设置分流坎和导流墩以起到提高下泄水流流量分配均匀性和改善下泄水流流速分布均匀度的作用，在各平板出水端设置底部开缝的挡流坎有利于形成均匀平缓的跌落水流以降低其对平板的水力冲击影响和预防平板底部的淤积。本发明能够对立面双层布置形式城市排水泵站的下泄水流进行有效消能和改善水流流态，对于确保立面双层布置形式城市排水泵站的结构安全性和运行稳定性具有良好的工程应用价值，同时也适于立面多层布置形式排水泵站及其他泄水建筑物设计改造工程中推广使用。
Method for improving flow state of discharged water flow of vertical-face double-layer arrangement type urban drainage pumping station
改善立面双层布置形式城市排水泵站下泄水流流态的方法
ZHANG RUI (author) / HE QI (author) / MO JIANJUN (author) / JIANG YANGYANG (author) / PAN YUMENG (author) / LI QING (author)
2023-04-25
Patent
Electronic Resource
Chinese
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