负荷平衡度对地源热泵系统的影响

Load balance effects on ground-source heat pump system

通过一些具体算例,分析了冬、夏负荷不平衡条件下井群规模与地源热泵系统长期稳定运行的关系。得出结论:地源热泵系统能否长年稳定运行不仅受地埋管换热器系统年累计释热量与累计吸热量的影响,而且与井群规模和单位井深峰值释热量密切相关。为保证地源热泵系统的长期稳定运行,在项目规模很小时,可以采用增加井数的方法;在项目规模较大时,务必要有可靠的技术措施,保证负荷平衡度达到一个较高的水平。

Through some calculation data, analyses the relationship between well group size and ground-source heat pump system＇s stable operation in a long-term when the winter and summer load are unbalanced. Draws the following conclusions： the ground-source heat pump system＇s long-term and stable operation is not only based on the accumulative heat release and heat absorption, but also closely depended on the well group size and peak heat release per depth. For the long term stable operation of ground-source heat pump system, when the project scale is very small, increases the well numbers. When the project scale is large, must have reliable technical measures to ensure the load balance reached a higher level.