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结合我国南方地区的气候特点,针对实际工程,提出了带排风多级热回收的地源热泵供暖空调与热水供应集成系统。介绍了该系统的节能原理,在分析建筑全年动态负荷特性的基础上计算了系统的节能性。结果表明,该系统全年供暖空调及供热水平均COP为5.3,投资回收期约5.5年,且冷热负荷不平衡率大大降低,具有较好的节能性、经济性和广阔的应用前景。
Combined with the climatic characteristics of southern China, aiming at the actual project, an integrated system of ground source heat pump heating air conditioning and hot water supply with multi-stage heat recovery of exhaust air was proposed. The principle of energy saving of the system is introduced, and the energy saving of the system is calculated on the basis of analyzing the dynamic load characteristics of the whole building. The results show that the annual COP of heating, air conditioning and heating systems is 5.3, the payback period is about 5.5 years, and the unbalance rate of heat and cooling load is greatly reduced. It has good energy saving, economy and broad application prospect.