Phase-change energy storage box

Abstract

The invention discloses a phase-change energy storage box. Heat is absorbed through phase change of energy storage materials and is accumulated in the phase-change materials, the phase-change energy storage box becomes a heat preservation box, and a guarantee is provided for a user for using heat at any time. The phase-change energy storage box comprises a box body, a refrigerant heat exchanger, a heating medium heat exchanger and an electric auxiliary heater. The box body is internally filled with the solid-liquid phase-changer energy storage materials, a heat preserving layer is installed outside the box body, and the refrigerant heat exchanger, the heating medium heat exchanger and the electric auxiliary heater are arranged in the solid-liquid phase-change energy storage materials in the box body; the box body is provided with a maintenance hole; a refrigerant inlet of the refrigerant heat exchanger is connected with a refrigerant inlet connecting pipe penetrating through the box body and the heat preserving layer, and a refrigerant outlet of the refrigerant heat exchanger is connected with a refrigerant outlet connecting pipe penetrating through the box body and the heat preserving layer; a heating medium inlet of the heating medium heat exchanger is connected with a heating medium inlet connecting pipe penetrating through the box body and the heat preserving layer, and a heating medium outlet of the heating medium heat exchanger is connected with a heating medium outlet connecting pipe penetrating through the box body and the heat preserving layer.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a phase change energy storage box for storing energy through phase change materials. Background technique [0002] With the continuous improvement of people's living standards, people's demand for domestic hot water is also increasing. People hope that when they want to use hot water, they can use it directly without waiting, and at the same time require to ensure its quality and constant temperature water supply. [0003] Most of the current hot water supply systems adopt a structural design in which a heat exchanger is installed in a water tank. The water in the water tank is heated by a heat exchanger, and then supplied to users. [0004] Because the heat exchange effect of the heat exchanger is relatively low, the volume of the general water tank is relatively large. At the same time, because the heat transfer of the heat exchanger is affected by the heat source, it o...

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Problems solved by technology

[0004] Because the heat transfer effect of the heat exchanger is relatively low, the volume of the general water tank is relatively large

At the same time, because the heat transfer of the heat exchanger is affected by the heat source, it often causes the instability of the water supply temperature and affects the use

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