Paraffin-felt phase-changing composite heat storage material and heat storage device thereof

Abstract

The invention discloses a paraffin-felt phase-changing composite heat storage material, which mainly comprises paraffin and a felt. The felt is placed in melted paraffin for immersion, and after the felt is fully saturated, the felt is taken out and congealed to prepare the material. According to the paraffin-felt phase-changing composite heat storage material, paraffin is adopted as a phase-changing material, the felt is used as an absorption and support structure to prepare the material, thus the defects of flowing paraffin in a liquid phase and rapid radiation are overcome, and the prepared paraffin-felt phase-changing composite heat storage material has the advantages of a light proportion, fundamental non-flowing, a stable shape, zero corrosion and better and unexpected effects on heat storage and heat preservation.

Description

technical field [0001] The invention relates to a paraffin-felt phase-change composite heat storage material and a heat storage device prepared by using the paraffin-felt phase-change composite heat storage material. Background technique [0002] When the weather is cold in winter, people are accustomed to heating with electric hot water bags, and electric hot water bags have become an indispensable article for people to keep out the cold. But the electric hot water bag adopts water as heat storage medium, and the fluidity of water is strong, and can scald people when electric hot water bag leaks liquid, and easily cause water bag to expand and explode, can cause very big potential safety hazard to people. [0003] Paraffin wax has the advantages of long-term stable physical and chemical properties, high heat storage rate, wide range of sources, low price, no pollution, and no corrosion. It is an ideal phase change heat storage material. People try to use it instead of water...

AI Technical Summary

Problems solved by technology

However, a single paraffin has the disadvantages of liquid phase flow, slow heat transfer and fast heat dissipation.

Although there are currently researches on paraffin phase change composite materials, such as paraffin-graphite, paraffin-perlite, paraffin-vermiculite and other phase change composite materials, the insulation effect and insulation time of these phase change composite materials are not ideal.

[0004] Felt has the characteristics of strong adsorption, stable molding, and heat insulation, but it basically has no heat storage function and low thermal conductivity. When heated, the felt will be burnt, and the heat will disappear quickly after heating is stopped.