Optimal Allocation Of Pumping And Recharging For Stable Heating Of Normal Temperature Groundwater In Kaifeng City

Pumping capacity is one of the most important links in the design of water source heat pump system,but at present,the allocation of pumping volume is still based on experience and lacks reasonable theoretical guidance.In this paper,the objective optimization model is set up based on the energy consumption of the pump and the theory of complete groundwater well.Taking Kaifeng Eleventh Chemical Construction Company Limited as the research area,this paper studies the theory of the allocation of water source heat pump,and has obtained the following research results.?1?The BP neural network is used to evaluate the water quality.It is known that the groundwater quality of the study area is better,is II level water quality,and the operation of the water source heat pump system has little influence on the groundwater quality.Based on AHP and frangibility index method,the study area is selected as the suitable area of water source heat pump.?2?Based on the AquiferTest software,using the Theis wiring method and Jacob linear graphic method on hydrogeologic parameters,The coefficient of water conductivity is 1024.3m²/d,the permeability coefficient is 13.5m/d,and the elastic releasing coefficient is 5.02×10^-4,improved the human error prone manual calculation of shortcomings,improve the accuracy of the results.according to the recharge experiment,using partial least squares method to calculate water heat pump system to recharge well the largest single well recharge volume.?3?Based on the theory of the complete well motion equation and the pump energy consumption equation of the confined aquifer,some assumptions on the equation are made,and the coupling between them is made.The target optimization model is established,and the pumping volume is allocated to provide scientific guidance for the rational allocation of pumping capacity.?4?Taking the eleven built water source heat pump system as an example,according to the layout and structure of pumping wells in the experimental area,two pumping and irrigation methods are designed,and a detailed target optimization model is established.Based on MATLAB,we use genetic algorithm to solve the model and get the optimal allocation of pumping and irrigation volume.Through the comparison of the two pumping and irrigation modes,we get the best pumping and irrigation mode and the optimal allocation of pumping volume in the experimental area.