单井回灌地源热泵承压含水层渗流解析解  

Analytical solution of seepage flow in a confined aquifer with a standing column well

作　　者：李旻[1] 刁乃仁[1] 方肇洪[1] 

机构地区：[1]山东建筑工程学院地源热泵研究所,山东济南250101

出　　处：《山东建筑工程学院学报》2006年第1期1-5,共5页Journal of Shandong Institute of Architecture and Engineering

基　　金：国家自然科学基金资助项目(50476040)

摘　　要：单井回灌地源热泵系统是一种高效、环保的新技术,但其涉及的地下水流动和传热问题相当复杂。要解决该系统的传热问题,首先要解决的是地下水渗流问题。由于单井回灌地源热泵是从一口井的底部抽取地下水,经过热泵换热后再从同一口井的上部回灌回地下,在不考虑地下水整体流动的情况下,这是一个具有复杂边界条件的轴对称渗流问题,对于该问题国内外文献里还未见有解析解。本文在一定简化假设条件下,通过积分变换的方法求得了承压含水层的解析解,为进一步分析传热奠定了基础。。The standing column well is a new technology with high efficiency and environmental benefit, where groundwater is drawn from the bottom of a well and then re-injected to its top after transferring heat with heat pumps. Heat transfer analysis of the ground and aquifer involves complex problems in such a case. Determining the groundwater seepage flow is a precondition to solve the energy equation describing the heat transfer of the system. Only when piezometric head is obtained, the seepage velocity can be determined according to Darcy＇s law. This paper studies the groundwater seepage flow in an axial symmetrical geometry with the assumption that gross groundwater flow is neglected. Analytical solutions of the groundwater seepage flow for confined aquifer have been acquired by the integral transform method, which provide foundation for heat transfer analysis of the standing column well system.

关 键 词：单井回灌 地源热泵 渗流 积分变换 

分 类 号：TU833.3[建筑科学—供热、供燃气、通风及空调工程]