YU Chen-hui,ZHANG Meng-yao,LI Peng,et al.Optimization of Start-Stop Water Levels of Sewage Pumping Station Based on Hydraulic Model[J].China Water & Wastewater,2021,37(1):81-88.
基于水力模型优化污水泵站的启停水位
- Title:
- Optimization of Start-Stop Water Levels of Sewage Pumping Station Based on Hydraulic Model
- 关键词:
- InfoWorks ICM模型; 污水管网; 泵站; 启停水位优化
- Keywords:
- InfoWorks ICM model; sewage pipeline network; pumping station; optimization of start-stop water level
- 摘要:
- 泵站是排水系统输水过程中的重要环节，对泵站启停水位的优化研究可提高排水管网对水量的调蓄能力，同时提高水泵的使用效率。以典型工业聚集区H镇为例，采用InfoWorks ICM构建该镇排水管网模型，利用两座泵站的实测数据进行率定和校核，并选用纳什效率系数和百分标准偏差评价模拟结果与监测点实测数据的吻合度，结果表明模型与H镇污水管网实际情况基本相符。在可信模型的基础上，根据对H镇运南、镇北和C北泵站现状运行情况的分析，提出各泵站启停水位的改进方案，采用模型对方案进行模拟，最终得到最优方案：运南泵站开启水位为-2.40 m，闭水水位不高于-5.99 m；镇北泵站开启水位为-1.30 m，闭水水位不高于-3.96 m；C北泵站仍以现状水泵开停水位进行液位控制，为后续研究区域排水系统的优化运行提供了依据。
- Abstract:
- Pumping station is an important link in the process of transporting water in sewage system. Optimization of pump start-stop water levels can improve the capacity of water regulation and storage of the drainage network and the efficiency of the pump. Sewage pipeline network model of a typical industrial town H was built by using InfoWorks ICM. The measured data of two pumping stations were used for calibration and verification, and the Nash-Sutcliffe efficiency coefficient and the percentage standard deviation were used to evaluate the consistency between the simulation results and the measured data at the monitoring points. The results showed that the model was basically consistent with the actual situation of the sewage pipeline network in H town. On the basis of the credible model, according to analysis of the current operation of Yunnan pumping station, Zhenbei pumping station and C Bei pumping station in H town, improvement schemes for start-stop water levels of each pumping station were proposed. The model was used to simulate the scheme and the optimal scheme was finally obtained, which was as follows: the start water level of Yunnan pumping station was -2.40 m and its stop water level was not higher than -5.99 m; the start water level of Zhenbei pumping station was -1.30 m and its stop water level was not higher than -3.96 m; C Bei pumping station was still controlled by the current start and stop water levels of the pump. The results provide a basis for the subsequent optimal operation of the drainage system in the research area.
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