水合物蓄冷技术，其相变温度与空调工况相适应，相变潜热大，传热性能优良，成为极具潜力的蓄冷新技术。本文对水合物蓄冷过程进行火用分析，找出影响内部火用损失及外部火用损失的主要因素，对提高系统火用效率提出了改进的措施，得出结论：火用效率和热效率随蓄冷周期数的增加而增大，并趋向于一稳定最大值。不同种类水合物系统火用效率取决于形成气的形成温度和压力 Hydrate storage technology, its phase transition temperature and air conditioning conditions to adapt to large phase transition latent heat, excellent heat transfer performance, has become a potential storage technology. In this paper, the exergy analysis of the hydrate storage process is carried out to find out the main factors that affect the exergy loss and the exernal exergy loss. Some measures to improve the exergy efficiency of the system are proposed. It is concluded that the exergy efficiency and thermal efficiency vary with cold storage Increase the number of cycles and tend to a stable maximum. The exergy efficiency of different kinds of hydrate systems depends on the formation temperature and pressure of the forming gas