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为合理安排地下水源热泵系统的抽灌井布局,利用地下水数值模拟方法,通过Visual MODFLOW软件中的SEAWATV4热运移模块,概化地下水温度场运移过程,建立了符合研究区域水文地质特征的水热耦合数值模型,采用不同的变量对合理井距离进行模拟研究,模拟得出在水温变幅不超过2℃的前提下,抽灌量300、800、1 500、2 500m3/d的合理井距分别为26.5、53.0、80.0、106.0m,可知温度场的变化范围受井距和抽灌量影响明显并呈一定规律性,应根据水源热泵系统不同的抽灌量要求确定合理的抽灌井距离。
In order to reasonably arrange pumping well layout of groundwater source heat pump system, groundwater numerical simulation method is used to visualize the temperature field migration process of groundwater through SEAWATV4 heat transfer module in Visual MODFLOW software, and water that meets the hydrogeological characteristics of the study area Thermal coupling numerical model, using different variables to simulate the reasonable well distance, the simulation results obtained under the premise of the water temperature amplitude does not exceed 2 ℃, pumping 300,800,1 500,2 500m3 / d reasonable spacing Respectively 26.5,53.0,80.0,106.0m, it can be seen that the temperature field of the range of changes affected by well spacing and pumping significantly and certain regularity, should be based on the pump pumping water pumping system to determine the requirements of a reasonable pumping well distance .