Phase change heat storage system

Abstract

The invention relates to a phase change heat storage system which comprises a heat storage box body, a circulating fan and a heat insulation air pipe; a partitioning frame and heat exchangers are arranged in the heat storage box body; the two heat exchangers are separately arranged at two ends of the partitioning frame; the partitioning frame is of an upper-lower layered structure; a plurality ofheat storage units are arranged left and right; a heating plate and a phase change material plate are placed in each heat storage unit; and an air outlet and an air inlet which are formed in the leftend and the right end of the heat storage box body are connected by means of the heat insulation air pipe and the circulating fan. The phase change heat storage system has the advantages that fillingand replacing of the phase change material are more convenient and quicker, hot air is circularly utilized in the system, and the temperature of hot air in the inlet and the outlet can be controlled,so that the utilization efficiency of energy sources is improved, the cost is reduced, and the more environmental protection purpose is realized.

Description

technical field [0001] The invention relates to a phase change heat storage technology, in particular to a phase change heat storage system. Background technique [0002] Phase Change Thermal Storage Technology (Phase Change Thermal Storage Technology) is a high-tech based on phase change thermal storage materials. Because of its high heat storage density and stable output temperature and energy, it has incomparable advantages compared with sensible heat storage. advantage. At present, phase change heat storage technology can be used as the basis for industrial energy-saving systems and high-tech product development to meet people's requirements for special performance and cost of systems and products. It can use electric thermal energy storage (heat and cold) to "cut peaks and fill valleys", and can also be used in new energy, industrial waste heat, development of new household electric heaters, aerospace and other fields. [0003] Phase change materials must be encapsula...

AI Technical Summary

Problems solved by technology

Setting up a heating temperature control system will cost a lot of money, and lowering the heating temperature will greatly lengthen the heat storage time of the phase change material

[0008] Phase change heat storage technology stores and releases heat through the phase change of phase change materials from solid to liquid or from liquid to solid. However, in most heat release processes, the existing phase change heat storage systems do not have a cycle link, so that the released heat When it is not fully used, it will be lost by itself, resulting in the requirement of energy saving not being fully met.

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