Portable multi-energy and multi-use heater made of shaped composite phase-change materials

Abstract

The invention relates to the technical field of phase-change energy storage and usage, and particularly relates to a portable multi-heat source and multi-use heater made of shaped composite phase-change materials. The portable multi-heat source and multi-use heater made of the shaped composite phase-change materials comprises open-cell foamed aluminum plates of which porosity factors are 80% and densities are 0.5g / cm<3>; phase-change paraffin material of which melting point is 50-60 DEG C and melting heat is 200J / g, wherein the phase-change paraffin material is filled in a foamed aluminum hole; and a spare electric heating element inserted in the heater. The foamed aluminum plate is used for carrying, shaping, supporting and conducting heat; the paraffin is used as the working medium for phase-change heat storage and heat emission, and the electric heating element is adopted as spare energy. When being used, the electric heating element is inserted in the heater; when using other energies, the electric heating element is taken out and stored in spare bags.

Description

[0001] The invention relates to the technical field of phase change energy storage utilization, in particular to a multi-heat source multi-purpose portable heater made of a fixed-shape composite phase change material, referred to as a portable heater for short. Background technique [0002] With the improvement of people's living standards, traveling, exploring, and returning to nature have become fashionable. To adapt to the ability to survive and work in extreme weather conditions, it is necessary to carry a variety of light-weight and small-sized emergency supplies, among which heaters are among them. one. As people who live and work in the field, there are at least the following basic requirements for the portable heater: first, the heating and heat preservation time is long, not only the heat stored per unit weight is large, but also released slowly; , solar energy, various fuel energy, boiled, and baked; third, it is light in weight, which can be ignored compared with ot...

AI Technical Summary

Problems solved by technology

In terms of usability, it meets the requirements for field use. The net weight is about 1 kg, but in terms of safety, it is not suitable for field use. Both substances are oxidants, dangerous goods, and are corrosive. Friction or impact with organic matter can cause combustion, especially Directly heat the oxidizing nitrate solution with fire in a sealed container. Once it exceeds the boiling point, it will become a pressure vessel and cause explosion hazards.

[0005] The 200910170001X patent discloses a portable heater, which is characterized in that it adopts lithium battery charging mode to control the heating temperature of the PTC heating element, and has the advantages of compact structure, small size, light weight (<80 grams), easy to carry, and short charging time (It can be fully charged in 2 hours), long heating time (can be used continuously for 3-7 hours), etc., but after the lithium battery is discharged, it needs to be charged again, and a special charger is required, which is still inseparable from electricity, and there is also a price problem

[0006] At present, there are a variety of portable heating products on the market, such as warm water bags, hand warmers, foot warmers, etc. Although small and light, most of them are based on electric heating. limitation

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