土壤源热泵系统热平衡问题的探讨

Discussion on Thermal Balance Problems of Ground-source Heat Pump System

土壤源热泵系统热平衡问题严重影响着热泵机组的运行效率。通过对土壤蓄热过程、土壤恢复性能以及间歇运行策略的分析，阐述了通过合理的设计和运行控制来充分利用“浅层地热能”这种可再生能源的重要性。冷热负荷的差异是引起土壤热平衡问题的根本原因，但不是唯一的原因。优化的设计和正确的运行管理可以充分的利用土壤自我恢复能力，有助于达到系统持续稳定高效运行的目的。

Heat balance problems of ground-source heat pump system seriously influence the efficiency of heat pump units. By analyzing the soil heat storage process, ground temperature restore performance and intermittent operation strategy, this paper describes the importance of taking full advantage of the ＂shallow geothermal energy＂ by reasonable design and operation control. The difference of cold and heat load is the fundamental reason that causes thermal balance problems, but not the only one. The optimization design and the right operation management can make full use of the soil resilience and help to achieve the target that the system can be operated continuously, steady and efficiently.