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Phase-change material packaging process and phase change heat storage product

A technology of phase change materials and packaging technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of lack of progress in packaging technology, achieve the effects of improving energy utilization, obvious energy saving effects, and reducing supercooling

Inactive Publication Date: 2014-09-24
张曹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing packaging technology is mainly concentrated in the low-temperature field, and high-density polyvinyl chloride (HDPE) is generally used for packaging, and there is still a lack of progress in the packaging technology for the high-temperature field of 100-200 °C

Method used

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  • Phase-change material packaging process and phase change heat storage product

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Embodiment

[0034] Example: see figure 1 , a phase change material packaging process provided in this embodiment, which includes the following steps:

[0035] (1) making an upper silica gel hemisphere 11 and a lower silica gel hemisphere 12 compatible with the upper silica gel hemisphere 11;

[0036] (2) Preparing a phase change material, the phase change material is a powdery or granular phase change material. In this embodiment, the phase change material is pressed into a sphere 2 by a thermocompression molding machine. In other embodiments, the phase change material can be wrapped with a film to form a sphere 2; the film is preferably 0.05 to 0.3 mm in thickness. PE film.

[0037] (3) Place the sphere 2 in the lower silica gel hemisphere 12, and then cover the upper silica gel hemisphere 11 on the lower silica gel hemisphere 12;

[0038] (4) Weld and join the joints of the upper silica gel hemisphere 11 and the lower silica gel hemisphere 12 by a hot plate machine to form a complete...

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Abstract

The invention discloses a phase-change material packaging process and a phase change heat storage product prepared by using the process. The phase change heat storage product comprises a spherical silica gel shell and a sphere prepared from a phase-change material, wherein the sphere is arranged in the spherical silica gel shell. The packaging process is simple, can realize packaging of phase-change materials with phase-change temperatures in a range of 100 to 200 DEG C and has the advantages of a good packaging effect, low cost and easy realization. The product provided by the invention is ingeniously designed, fully utilizes the characteristics of high temperature resistance, aging resistance, no toxicity, uneasy reaction with acid and alkaline substances and the like of silica gel and enables a packaged phase-change material to be used for a long time during heat storage; moreover, heat conduction powder is added, so good heat conductivity is obtained, the phase-change material is allowed to realize effective heat exchange with the outside, the utilization rate of energy is increased, and energy conservation and environmental protection are benefited. Since the product employs spherical structure design, the product can be more easily put into a variety of heat storage tanks or heat exchange apparatuses, which is beneficial for wide popularization and application of the product.

Description

technical field [0001] The invention belongs to the technical field of phase change material encapsulation, and in particular relates to a phase change material encapsulation process and a phase change thermal storage product obtained by implementing the process. Background technique [0002] The medium and high temperature application of solar thermal energy is an important direction for the development of solar energy in the future. However, the energy density of solar radiation reaching the earth's surface is relatively low, and is restricted by factors such as geography, seasons, day and night, and weather changes, showing characteristics such as thinness, discontinuity, and instability. When the phase change material undergoes a phase change, it can absorb the heat (cold) of the environment, and release the heat (cold) to the environment when needed, which can effectively solve this problem. On the other hand, there is a price difference between peak-valley power and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/02C08L83/04
Inventor 张曹
Owner 张曹
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