摘要
本文在对廊坊市万庄镇的浅层地热资源量进行概算的基础上，对水源热泵在该区的推广可行性做了评价；并且通过野外场地试验，对该区地下水供给能力及回灌能力进行了研究。得出如下主要结论：（1）该区域浅层地热能储量丰富，总储量约为18075．0×1010KJ，相当于标准煤616．8×104t，具备推广水源热泵的基础条件。（2）研究区浅层含水层富水性较好，水质较好、供水能力较强，满足水源热泵的运行，也利于地下水回灌，不引起水资源的浪费。（3）在不引起次生环境地质问题前提下，建议在水源热泵系统运行时单井抽水量控制在80m3／h左右，单井回灌量不超过40m。／h，采用一抽两灌的原则配置抽、灌井数量，抽水井和回灌井的井间距控制在70～80m，这样能够使得被抽取的地下水基本得到回灌补给，也可合理的利用浅层地热资源。
Groundwater recharge is critical to promote the application of ground-source heat pump system. This paper estimated shallow geothermal resources of the Wanzhuang town, Langfang City and carried on field tests to study gush and recharge capacity of groundwater. The results show： shallow geothermal energy is abundant in this region. Croundwater temperature changes from 17.0~C to 19.0~C, which is a suitable temperature for ground-source heat pump system. Gushing flow of 80 m3/h for a single well is recommended for application of the system and single recharging flow should not exceed 40 m3/h. It would be best to configure two gushing well for one recharging well. Croundwater quality is quite well to meet groundwater-source heat pump system requirements. The region cannot be more suitable for the development and utilization of shallow geothermal energy.
出处
《地质调查与研究》
2012年第4期310-314,共5页
Geological Survey and Research
基金
国家自然科学基金面上项目:晚更新世以来天津地区陆海相互作用与古季风环境项目(40572096)
关键词
廊坊
浅层地热
水源热泵
人工回灌
Langfang
surface geothermic resources
ground-source heat pump
artificial recharge
