| 鲁北平原地下咸水浅层地热能开发利用条件研究 |
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| 作者姓名： | 赵季初 纪洪磊 刘欢 |
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| 作者单位： | 1.山东省地质矿产勘查开发局第二水文地质工程地质大队,德州 253072; 2.山东省地热清洁能源探测开发与回灌工程技术研究中心,德州 253072 |
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| 基金项目： | 山东省地质勘查项目“德州市浅层地温能调查评价(编号: 鲁国土科字(2015)003号)”“滨州北海经济开发区浅层地热能调查评价(编号: 鲁国土资字[2014]126号)”“平原县浅层地温能调查评价(编号: 鲁国土资函〔2017〕151号)”联合资助 |
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| 摘 要： | 为了解决鲁北平原区农村冬季清洁供暖问题,扩大地下水地源热泵系统的应用规模,以区内广泛发育的咸水体为研究目标,在简述第四纪地层特征的基础上,阐明了第四纪含水砂层与咸水体的分布特征,总结了区内以往开展的4个浅层地热能勘查项目所施工的水文地质勘探孔抽水试验与回灌试验成果。结果表明研究区咸水含水层单井涌水量320~475 m^3/d,单位涌水量12.76~28.3 m^3/(d·m),自然回灌条件下单井回灌量30~56 m^3/d,单位回灌量5.85~17.5 m^3/(d·m);单眼开采井可供暖面积为3481.02 m2,可满足约35户农村住宅的冬季供暖需求;研究区在进行浅层地热能开发时建议优先选择地下水地源热泵系统,对于供暖/制冷能耗需求较小的农村单户建筑,可选择地埋管地源热泵系统进行分散式供暖/制冷。
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| 关 键 词： | 浅层地热能 建筑供暖 地下水地源热泵 地埋管地源热泵 |
| 收稿时间： | 2019-07-17 |
Study on the development and utilization prospection of shallow geothermal energy of saline underground water in Northern Shandong Plain |
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| Authors: | ZHAO Jichu JI Honglei LIU Huan |
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| Institution: | 1. No.2 Hydrogeology and Engineering Team of Shandong Geology and Mineral Exploration Bureau, Dezhou 253072, China; 2. Shandong Engineering Technology Research Center for Geothermal Clean Energy Exploitation and Reinjection, Dezhou 253072, China |
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| Abstract: | In order to provide a way to expand clean heating energy and promote the utilization scale of groundwater heat pump system, the authors focused on the widespread saline water body in the study area, based on the stratigraphic characteristics of Quaternary strata. The distribution patterns of sand and saline water body of Quaternary were analyzed, and the pumping tests and reinjection hydrogeology tests from four previous shallowing geothermal energy exploration projects were summarized. The results show that the yield of a single well is 320-475 m3/d in saline water layers, with the unit yield of 12.76-28.3 m3/(d·m). And the natural reinjection rate is 30-56 m3/d, with the unit reinjection of 5.85-17.5 m3/(d·m). The total allowable heating floor area is 3 481.02 m2 for one well, which could satisfy the heat load of 35 rural houses in winter. The groundwater heat pump system is preferable in the shallow geothermal development in the study area, while the scatter distributed ground-coupled heat pump system is optional for single rural building with less energy need for space heating/cooling. |
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| Keywords: | shallow geothermal energy building heating groundwater heat pump ground-coupled heat pump |
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