The Water Supply Pipe Network Modeling And Optimization Research Based On WATERGEMS

In this paper,in order to save water resources for the purpose of using WaterGEMS modeling software,the modeling and optimization of a district of Zhengzhou city based on information management to solve the current water supply industry are backward,serious waste of resources and other issues.By introducing the time series algorithm,BP neural network algorithm and genetic algorithm,the network of water demand forecasting,the establishment of the network,the establishment of the network microcosmic model of two level optimization scheduling model research,improve the working efficiency of the traditional network scheduling experience.The main contents of this paper are as follows:(1)In this paper,through the historical data of water in a district of Zhengzhou City,summarizes the network of different types of water of water,combined with historical data,individual forecasting models are set up:time prediction model and BP neural network prediction model.In order to combine the advantages of the two models and avoid the shortcomings,a combined water consumption forecasting model combining the two forecasting models is introduced.Finally,the three models are verified by water use data in a district of Zhengzhou,and the combination forecasting model has higher prediction accuracy and stability than the two individual models.(2)In this paper,we collect and sort out the property information and network operation information and revenue data of a district in Zhengzhou,and establish the micro hydraulic model of the pipe network based on WaterGEMS.Through the static checking and dynamic checking of the pipe network model,the accuracy of the pipe network model is improved.Finally,the rationality and feasibility of the micro model of the pipe network are verified by analyzing the network operation conditions and observing the difference between the simulated data and the measured data.(3)According to the actual application situation in our country,this paper chooses the establishment of the micro hydraulic model of the pipe network,and establishes the two level optimal dispatch model of the water supply network.First,through the establishment of a scheduling model and the optimal water supply and water supply pressure of three water,then the best combination for pump units in optimum water supply and water pressure under the condition of establishing two level scheduling model.(4)Finally,this paper verifies the optimal scheduling model established by a practical example of a certain district in Zhengzhou.Proof strength,through the network scheduling optimization a day can save about 7724KWh power in the B water supply point,energy efficiency is about 20.13%,proved the rationality and feasibility of the optimization scheduling model established,and has good economic benefits.