多级蓄热系统是实现能量利用的重要方式，与传统的蓄热方式相比提升了系统的整体性能，具有将不稳定的热源高效存储并利用的重要作用。本文综述了蓄热系统在材料和换热装置方面常见的优化方式，着重对于多级蓄热系统特有的优化方式，分别从层级之间的关系、材料之间的匹配以及整体火用效率3个方面进行了分析和归纳，介绍了当入口流体受不稳定热源影响时系统的优化方式。

The multi stage heat storage system is an important method to realize the energy utilization,which improves the overall system performance compared with the tradational heat storage mode and plays an important role in storing and utilizing the unstable heat source efficiently. The common optimization method of heat storage system in the aspects of material and heat exchange device is described briefly in this paper. The special optimization method of multistage heat storage system is analyzed and summarized emphatically,in three ranges of the volumetric relationship between each stage,the match of materials and the overall efficiency. The optimation method of system is introduced when the inlet fluid is affected by unsteady heat sources.

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内蒙古地区建筑的太阳能梯级相变储热器性能与实用化研究（CHJH2018）；内蒙古自治区科技成果转化项目（CGZH2018150）