汉江中游地区热源井抽水与回灌对地下水质的影响

Influence of Pumping and Recharge of Heat Source Wells on Groundwater Quality in the Middle Reaches of Hanjiang River

地下水地源热泵在运行过程中会影响地下水的水质。以汉江中游地区为例,探究浅层地源热泵系统中热源井抽水与回灌对地下水质的影响,分析影响地下水水质的因素。结果表明,地下水的温度变化,外界污染物的入侵,热源井井壁管、输水管道、管件及地源热泵系统主要设备都有可能污染地下水。由此提出优化方案:对地下水地源热泵系统进行优化设计并展开合理维护保养,以有效减少污染。

Groundwater ground source heat pump will affect groundwater quality during operation.Through taking the middle reaches of Hanjiang River as an example,the study explores the influence of pumping and recharge of heat source well on groundwater quality in shallow ground source heat pump system,and analyzes the influencing factors of groundwater quality.The results show that the temperature change of groundwater,the intrusion of external pollutants,the wall pipes of heat source wells,water pipelines,pipe fittings and the main equipment of ground source heat pump system may pollute groundwater.Then the study proposes the optimization scheme:to optimize the underground water pumping and recharge of heat source wells,and promote rational maintenance,so as to effectively reduce pollution.