土壤源热泵桩基埋管换热器的传热分析和设计计算

摘要

Soil source heat pump has clean, energy-saving and efficient characteristics, so it can decrease the environm ental crisis and energy crisis. The type of energy piles has been used w idely because it can save land and construction costs. It summarizes the research progress of heat transfer model for exchanger of energy piles, uses finite and infinite coilheatsource m odelto analyze the heattransferperform ance ofenergy piles,and contrastthe differences of two modelcalculation results.Finally energy piles ofsoilsource heatpum pare designed and calculated in a projectby the method offinite coilheatsource model.%土壤源热泵具有清洁、节能、高效的特点，能够有效缓解如今的环境危机和能源危机，而桩基埋管技术能节约土地和施工费用，近年来得到广泛应用。总结了桩基埋管换热器传热模型的研究进展；利用有限长和无限长线圈热源模型分析了桩基螺旋埋管换热器的传热性能，对比两种模型计算结果的差异；利用有限长线圈热源模型，对某工程的土壤源热泵桩基埋管换热器进行了设计计算。