摘要
水源热泵系统中抽灌井的井间距、布置方案及运行模式等直接决定系统运行的效率。以一医院水源热泵系统为例,在建立耦合数学模型的基础上,借助HST3D软件,深入分析井间距为25 m、40 m、50 m、60 m条件下,抽灌井周边的地下水流场和温度场变化特征,研究表明:井间距越大,热贯通产生的时间越长,程度也越轻微,类似实例的水文地质条件及工程规模相似的地区井距50 m较为合理。
As the distance between production well and injection well, distribution of wells and operation model of wa- ter resource heat - pump system are key determining factors of system efficiency, the paper makes a research on changes in water flow field and temperature field around production and injection wells. Taking a certain hospital; s water - source heat -pump system as example, the paper does the research on the basis of coupling model and analyzes the variation characteristics of the research objects with the help of HST3D software when the inter - well distance are 25m, 40m, 50m, and 60m. The result shows that a longer distance will take longer time for thermal transfixion which in a slighter degree. Therefore, the conclusion is the optimum distance between water - source heat - pump production well and injection well, which are in similar hydrogeologieal environment and project scale as the example one, should be 50m.
出处
《地下水》
2013年第5期43-45,共3页
Ground water
关键词
井间距
地下水水位
温度
热贯通
Inter- well distance, groundwater level, temperature and thermal transfixion
