A direct contact phase change heat storage device

Abstract

The invention relates to a direct contact phase-changing heat storage device. The direct contact phase-changing heat storage device comprises a heat transfer fluid inlet (1), heat transfer fluid runners (2), phase-changing heat storage materials (3), phase-changing heat storage material fixing frames (4), a heat storage device container shell (5) and a heat transfer fluid outlet (7), wherein the multiple phase-changing heat storage material fixing frames (4) are mounted in the heat storage device container shell (5); gaps between the adjacent phase-changing heat storage material fixing frames (4) as well as between the phase-changing heat storage material fixing frames (4) and the heat storage device container shell (5) are the heat transfer fluid runners (2); the phase-changing heat storage materials (3) are placed in the phase-changing heat storage material fixing frames (4); the heat transfer fluid inlet (1) is formed in one end of the heat storage device container shell (5), and the heat transfer fluid outlet (7) is formed in the other end of the heat storage device container shell (5); and the heat transfer fluid inlet (1) and the heat transfer fluid outlet (7) are used for allowing heat transfer fluid to flow in and flow out respectively. The direct contact phase-changing heat storage device is large in heat storage density, simple in structure, good in heat exchange effect, wide in application range, reliable in performance and low in manufacturing cost.

Description

technical field [0001] The invention is a direct contact phase change heat storage device, which belongs to the innovative technology of the phase change heat storage device. Background technique [0002] The phase change heat storage device utilizes the characteristics of certain materials that can store and release a large amount of heat energy during phase change, stores the heat energy, and releases the heat energy when needed. [0003] Since the volume of a general substance will change significantly when a phase transition occurs, when a phase transition occurs in a fixed container, the substance will not be in close contact with the side wall of the fixed container, resulting in a problem of poor heat transfer effect, thereby affecting heat storage or exothermic properties. [0004] Instead of using a fixed container, due to the effect of the surface tension of the heat storage material, the contact area between the heat transfer fluid and the heat storage material i...

AI Technical Summary

Problems solved by technology

[0003] Because the volume of general substances will change significantly when the phase transition occurs, when the phase transition occurs in the fixed container, the substance will not be in close contact with the side wall of the fixed container, resulting in poor heat transfer effect, thus affecting heat storage or exothermic properties

[0004] Instead of using a fixed container, due to the effect of the surface tension of the heat storage material, the contact area between the heat transfer fluid and the heat storage material is small, which also affects the heat storage or heat release performance.

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