Composite phase-change heat storage material

A technology of phase change materials and phase change heat storage, applied in heat exchange materials, heat storage equipment, indirect heat exchangers, etc., can solve the problems of low thermal conductivity, small heat capacity, poor stability, etc., and achieve high thermal conductivity, The effect of stable performance and stable melting point

Inactive Publication Date: 2012-07-18
郑小玲
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Problems solved by technology

[0030] In order to overcome defects such as small heat capacity, low thermal conductivity, and poor stability of known phase change materials, the present invention provides a brand-new composite phase change mater

Method used

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  • Composite phase-change heat storage material
  • Composite phase-change heat storage material
  • Composite phase-change heat storage material

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[0051] The present invention is a technical solution for the production of products. Through the organic combination of related materials, the present invention can be specifically implemented.

[0052] The composition and proportion of related materials of the product of the present invention, such as figure 1 Shown.

[0053] figure 1 Among them, the product of the present invention consists of five types of raw materials: heat storage agent, phase change temperature regulator, crystallization nucleating agent, suspension thickener, and solvent. Different types of raw materials use different chemical substances. Among them, the heat storage agent is used Pure sodium sulfate (Na 2 SO 4 ) Raw material, phase change temperature regulator uses pure sodium carbonate (Na 2 CO 3 ) Raw material, pure borax (Na 2 B 4 O 7 ) Raw material, suspension thickener using polycarboxylic acid (PCA) raw material, solvent using water (H 2 O) Raw materials, their weight ratios in the entire product are ...

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Abstract

The invention relates to a phase-change heat storage material, in particular to a composite phase-change heat storage material with sodium sulfate decahydrate as a main body. The composite phase-change heat storage material disclosed by the invention overcomes the defects of small heat capacity, low thermal conductivity, poor stability and the like of the traditional well-know phase-change material; a brand-new composite phase-change heat storage material is formed by co-melting sodium sulfate, sodium carbonate, sodium borate, polycarboxylic acid, water used as a heat storage agent of the material, a temperature regulator, a crystallization nucleating agent, a suspension thickener and a raw material solvent; the composite phase-change heat storage material has the advantages of high heat capacity, proper phase-change temperature, high thermal conductivity, difficulty in generation of super-cooling phenomenon and the like; the heat storage material not only is suitable for daily heating requirements of organizations, enterprises, troops, families and the like, but also is applicable to special occasions such as high altitude, polar regions, oceans, desert, highland and mountainous areas with large temperature difference between day and night; in addition, the composite phase-change heat storage material disclosed by the invention has the characteristics of simple implementation, simple and easy manufacturing, durability, broad market prospect, and higher economic added value and social application value.

Description

technical field [0001] The invention relates to a phase change heat storage material, in particular to a composite phase change heat storage material using sodium sulfate decahydrate as a main body. [0002] Background technique [0003] Heat storage material refers to a material that can store a certain form of heat under certain conditions, and can be released and utilized under certain conditions. Thermal storage materials generally must have the characteristics of good reversibility, high energy storage density, and strong operability. [0004] At present, the known heat storage materials can be roughly divided into three types: sensible heat type, latent heat type and chemical reaction type according to the heat storage method. [0005] The so-called sensible heat storage means that when the material stores and releases heat energy, except for the temperature change of the material itself, other forms and characteristics of the material do not change. The sensible he...

Claims

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Application Information

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IPC IPC(8): C09K5/06E04D13/18F28D20/02
CPCY02B10/20Y02E70/30Y02E60/145Y02E60/14Y02P80/20
Inventor 郑小玲
Owner 郑小玲
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