Explores the heat exchange performance of ground heat exchanger under three different conditions of leakage, no-leakage and submerged tubing. The results show that water seepage is favorable to balancing the soil temperature field and more to heat exchange while less affecting water temperature of the original landscape water; when the spacing between two single submerged tubes is about 40 cm, the interaction of temperature field between tubes would become small; under the same conditions, the heat exchange capacity under leakage condition increases by 22.6％ than that of no-leakage, and the average increment of each loop is greater than 10％; the heat exchange capacity of submerged tube is the highest of the three ways.%分别在有渗漏、无渗漏和浸管实验条件下,研究了地埋管换热器的换热性能.实验结果表明,水渗漏利于土壤温度场的平衡,更有助于热泵系统的换热,同时对原景观水体温度的影响较小;当浸管单管间距为40 cm左右时,各温度场间的相互影响较小;相同条件下,渗漏工况地埋管换热器的换热量比无渗漏工况下大22.6%,各环路换热量增加的平均值都在10%以上;3种方式中浸管式热泵系统的换热量最大.
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