Heat and cold storage device capable of freely replacing phase change energy storage module

Abstract

The invention relates to a heat and cold storage device capable of freely replacing a phase change energy storage module, and belongs to the field of energy storage devices of phase change materials. A heat exchange medium firstly enters from a heat exchange medium inlet pipe, is transmitted in a coil-pipe-shaped heat exchanger, a straight-pipe-shaped heat exchanger, a U-shaped pipe and a quick connector in a heat and cold storage box body, and finally is transmitted out of the heat and cold storage device from the output end of a heat exchange medium outlet pipe, the heat exchange medium is transmitted in the coil-pipe-shaped heat exchanger and the straight-pipe-shaped heat exchanger and exchanges heat with a phase change material in the phase change energy storage module, cold storage and heat storage are achieved and supplied to other external devices for use, meanwhile, the phase change energy storage module can be replaced into other phase change energy storage modules with different phase change temperatures at any time according to actual needs, the phase change material is wrapped in a module shell of the phase change energy storage module, so that the phase change material is prevented from being in direct contact with the heat exchanger, the box body is further prevented from being corroded by the phase change material, and the heat exchange efficiency of the heat and cold storage device is improved.

Description

technical field [0001] The invention relates to the field of energy storage devices of phase change materials, in particular to a heat storage and cold storage device with freely replaceable phase change energy storage modules. Background technique [0002] Compared with traditional heating, phase change material energy storage has many advantages such as small footprint, low operating cost, high safety and reusability, so it is becoming a new research direction in the field of energy storage. At present, the main The phase change material is placed in a closed metal box, and the heat exchange medium moves in the heat exchange pipe in the box to exchange heat with the phase change material in the box to realize heat storage and heat release. [0003] However, phase change materials are corrosive to metals, and leakage is prone to occur during long-term use, resulting in reduced safety. Moreover, when leakage occurs, the phase change materials and the box storing the phase ch...

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Problems solved by technology

[0005] For this reason, the present invention provides a heat storage and cold storage device that can freely replace the phase change energy storage module to overcome the corrosion of the box body by the phase change material in the prior art and the inability to use different phase change materials and improve the heat storage and cold storage device. The problem of heat transfer efficiency

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