Phase change heat storage device

Abstract

The invention discloses a phase change heat storage device which comprises an energy storage unit, a turbulent flow unit and a fluid transport channel. The energy storage unit is composed of a thermal insulation material, a shell, Hilbert curve configuration metal frameworks and a phase change material, wherein the thermal insulation material wraps the outer side of the shell; the Hilbert curve configuration metal frameworks are uniformly distributed in the shell; the phase change material is uniformly arranged between the shell and the Hilbert curve configuration metal frameworks in a filling manner; turbulent flow bodies are uniformly attached to the fluid sides of the Hilbert curve configuration metal frameworks according to an array, the turbulent flow bodies are composed of turbulent flow columns and bottom plates, and the turbulent flow columns are distributed according to the Sierpinski carpet fractal and the cantor set fractal; the Sierpinski carpet fractal order is equal to the cantor set fractal order; and the fluid transport channel is composed of a gradually-expanding inlet, a heat exchange channel and a gradually-shrinking outlet. According to the phase change heat storage device, the heat exchange area of the fluid and the phase change material can be effectively increased, temperature distribution is uniform, the fluid turbulivity is increased, the heat transfer efficiency is improved, and heat storage or heat release can be quickly and efficiently carried out.

Description

technical field [0001] The invention relates to a heat storage device, in particular to a phase-change heat storage device designed to improve heat exchange efficiency and has the structural characteristics of a Hilbert curve. Background technique [0002] With the increasingly serious problems of energy shortage and environmental pollution, the development and utilization of new energy-saving technologies has become the focus of research. The global energy consumption is huge every year. At the same time, a large amount of waste heat is discharged directly without utilization, resulting in a huge waste of energy. Therefore, full recovery and utilization of waste heat will significantly save energy. According to the energy conversion and transfer characteristics of waste heat resources in the process of utilization, the current waste heat recovery technology is mainly divided into heat exchange technology, thermal power conversion technology and waste heat heating and coolin...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low heat storage efficiency and slow heat storage speed in traditional phase change heat storage devices, the technical scheme adopted by the present invention is as follows:

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