Formula of chemical heat storage material for heat transfer

A chemical heat storage and formulation technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of heat transfer contradictions of chemical substances, useless industrial production, poor heat transfer performance of reversible reactions, etc.

Inactive Publication Date: 2015-05-27
CHENGDU AONENGPU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The discharge of industrial kilns, steel slag, etc., and the tailings formed by various mine developments have accumulated as above, and there are hidden dangers. How to effectively and economically utilize them will be a very problem that needs to be solved.
[0008] The use of reversible chemical reactions for heat storage has become a feasible technology, bu...

Method used

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  • Formula of chemical heat storage material for heat transfer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1, rectangular chemical heat storage block

[0046] figure 1 The rectangular chemical heat storage block shown is composed of chemical substances NaSO in accordance with the weight ratio 4 .10H 2 O500 grams account for 50%, 200 grams of metal particle iron oxide accounts for 20%, and 300 grams of microporous particle zeolite powder accounts for 30%, and they are mixed to become chemical heat storage materials. After mixing it, it is molded by mechanical pressure. There are 9 channels in the rectangular block, and the channels can be formed into a channel, and the fluid can circulate in the channels; the chemical heat storage block can absorb 300 grams of water, and the temperature is 32.3 degrees, when the temperature is higher than this temperature, sensible heat is used for heat storage. This material has good thermal conductivity, can effectively transfer heat energy, and has adsorption capacity, absorbing 300 grams of water to realize chemical heat stor...

Embodiment 2

[0048] Embodiment 2, rectangular chemical heat storage ball

[0049] Chemical substance CaCl by weight ratio 2 .6H 2O 800g accounts for 80%, the metal particles are composed of 100g steel slag 10%, and microporous particle alumina 100g accounted for 10%. After mixing them, they are made into granule balls and become chemical heat storage balls.

[0050]

Embodiment 3

[0051] Embodiment 3, honeycomb empty chemical heat storage fast

[0052] According to the weight ratio chemical substance Mg(NO 3 ) 2 .6H 2 O600g accounts for 60%, 150g of metal particle gold ore tailings powder accounts for 15%, and 100g of microporous particle alumina accounts for 10%, and 15g of graphite powder is composed of 15%. Mix it, then add 180 heat-conducting cement, and mix it It is filled into the container, and the inside of the container is provided with honeycomb holes. When refilling, the filled materials are filled one by one at intervals of a honeycomb hole, and then formed after being fixed.

[0053]

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Abstract

The invention aims to provide a formula of a chemical heat storage material for heat transfer; the chemical heat storage material can achieve high-temperature, large-scale, low-cost and high-efficiency heat storage, and is suitable for heat storage and heat transfer at the temperature of 10-1500 DEG C. The chemical heat storage material is composed of three components at least comprising a group of chemical substances which can undergo a reversible reaction, a group of metal particles composed of metals or metal oxides, and a group of microporous particles composed of materials containing micropores, and the three components are mixed to form the chemical heat storage material. The metal particles are added in the chemical substances so as to achieve effective heat transfer, and the problem of heat transfer is solved; at the same time, the porous particles are added, so as to achieve a reaction among the chemical substances, achieve effective performing of the chemical reaction and make the reaction be an effective contact reaction; therefore, the chemical heat storage has actual industrial application values.

Description

technical field [0001] The invention relates to thermal energy utilization, in particular to a material and a formula for realizing thermal energy storage through reversible chemical reactions. Background technique [0002] The heat accumulator is a device for storing thermal energy, and the existing heat accumulators are steam type and liquid heat accumulators; [0003] In the field of industrial energy conservation, waste heat is recovered and stored, usually using phase change technology for heat storage, and in the low temperature field using ice storage technology for heat storage; [0004] In the field of solar energy, molten salt is used to store heat. Although molten salt can achieve high temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited. [0005] In the field of s...

Claims

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Application Information

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IPC IPC(8): C09K5/16
CPCC09K5/16
Inventor 李建民
Owner CHENGDU AONENGPU TECH
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