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第 23卷第 3期山东建筑大学学报 Vol. 23 No. 3
2008年 6月 JOURNAL OF SHANDONG J IANZHU UN IVERSITY June 2008
文章编号: 1673 - 7644 (2008) 03 - 0230 - 05
单井回灌地源热泵地下换热器流动模型及分析
刘惠 1 ,刁乃仁 2 ,方肇洪 2
(1. 山东农业大学水力土木工程学院,山东泰安 271018; 2. 山东建筑大学热能工程学院,山东济南 250101)
摘要:单井回灌地源热泵系统是一项建筑节能的新技术,其地下换热器涉及复杂的地下水渗流及换热问题。要
分析单井回灌地源热泵系统的地下传热过程,首先得解决系统运行过程中地下水流动问题。本文通过对单井
系统地下流场的分析在简化假设的基础上建立了数学模型,通过数值计算表明承压含水层完整井系统抽水段
与回灌段长度基本相等,井筒壁上降深及径向渗流速度沿井深方向基本程线性变化,系统回灌率受径向渗透系
数影响较大。
关键词:单井回灌;地源热泵;渗流;数学模型;承压含水层
中图分类号: TU83 文献标识码: A
Theoretica l flow m odel and ana lysis of the underground
hea t exchanger in stand ing column wells
L IU Hui1 , D IAO Nai ren2 , FANG Zhao hong2
(1. W ater Conservancy and Civil Engineering College, Shandong Agricultural University, Tai′an 271018, China;
2. School of Thermal Energy Engineering, Shandong J ianzhu University, J inan 250101, China)
Abstract: The standing column well is a new technique with high efficiency and environmental bene
fit. Heat transfer analysis of the ground p lex p roblem s such as seepage flow in aquifer and
heat transfer in porous medium. Determ ining the groundwater seepage flow is a p recondition to solve
the energy equation describing the heat transfer of the system. This paper studies the seepage flow and
establishes mathematicalmodelwith some assump tions to simp lify the p roblem. The numerical solution
on e