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通过建立地下水地源热泵系统试验场,运行热泵系统,并进行地下水温度连续监测,分析应用地下水地源热泵系统对地温场的影响。抽水井与回灌井之间以及回灌井附近的地下水温度随系统运行明显变化。系统运行后,回灌水体将以不规则边缘的透镜体贮存于含水层中,以回灌井为中心向外围扩展,水温最低或最高点位于含水层中部。粘性土相对隔水层的温度变化幅度、影响范围均小于含水层。由于热量的累积效应,即使是冷热负荷均衡的热泵系统,运行一个采暖、制冷周期后也将在热源井附近的抽、灌水含水层以及相邻的隔水层中形成冷量或热量的小范围聚积。
Through the establishment of groundwater source heat pump system test ground, running heat pump system, and continuous monitoring of groundwater temperature, groundwater heat pump system to analyze the impact of groundwater temperature field. Groundwater temperatures between pumping wells and recharge wells and near recharge wells vary significantly with system operation. After the system is running, the water body of the recharge will be stored in the aquifer with the lens body of irregular edge, and the periphery of the recharge well will expand to the periphery with the lowest or highest water temperature in the middle part of the aquifer. Cohesive soil relative to the water temperature of the scope of change, the impact range is less than the aquifer. Due to the cumulative effect of heat, even a heat-heat load-balanced heat pump system running a heating and cooling cycle will form a small amount of cooling or heat in the pumping, irrigation aquifers and adjacent aquitards near the heat source wells Range accumulation.