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摘 要： 根据能量梯级利用原理，提出一种将水蓄热与相变材料蓄热结合在一起的复合蓄热热回收空调系统，该系统集中两种蓄热方式各自的优势。在空调机组回路的冷凝器上串联一个相变蓄热器和一个水蓄热器，压缩机出口出来的高温高压的制冷剂过热蒸汽首先经过相变材料蓄热器，使得冷凝过程中品位较高的过热以潜热的形式存于相变材料中，然后再经过水蓄热器，将冷凝过程中制冷剂的部分温度较低的相变热储存于水中。当生活中需要热水时，便可以利用回收的冷凝热加热生活用水，达到节约能源，满足生活热水需求一举两得的目的。 关键词： 热回收 相变材料 蓄热器 冷凝热 复合蓄热 Research On Combined Thermal Storage Hot Water Air Conditioner Technology By Heat Pump Xuelai Zhang Yuanpei Lin Shuxuan Yu Mei Yu Shanghai Maritime University Abstract : According to the principle of cascade use of energy, An recycling air conditioning system combining water thermal storage and PCM thermal storage was presented, which can put the separate advantages of these heat recycling air conditioning system together. A water thermal storage and a phase change thermal storage are installed in series before the air condenser. Superheated refrigerant vapor from the compressor flows through the phase change thermal storage first, the heat of superheating being stored in it, and then the refrigerant flows through the water thermal storage and exchanges heat with the water. Part of latent heat of condensation is stored in water thermal storage. When domestic hot water is needed, the heat recovery air conditioning will be used to heat domestic water. By this way, it not only can save energy but also satisfy the hot water demand of users. Keywords: heat recovery, PCM, thermal storage, condensing heat, complex heat storage