Solar inorganic energy storage material and preparation method and application thereof

An energy storage material and solar energy technology, which is applied in the field of solar inorganic energy storage materials and its preparation, can solve the problems of complex chemical reaction process, large one-time investment, and low overall efficiency, and achieve broad application prospects, high enthalpy value, The effect of high latent heat storage density

Inactive Publication Date: 2021-07-20
贵州国锐鑫节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the disadvantages of complex chemical reaction process, large one-time investment and low overall efficiency, chemical reaction heat storage is currently only in the small-scale test stage, and there are still many problems to be solved before large-scale application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a solar inorganic energy storage material, comprising the following steps:

[0023] (1) Weigh 28 kg of anhydrous magnesium chloride, 21 kg of anhydrous calcium chloride, 50 kg of water, 10 kg of nano powder aluminum hydroxide, 5 kg of nano powder iron oxide, 5 kg of nano powder zinc oxide, and 80 kg of 85% phosphoric acid 1 kg of nano-powdered alumina, 1 kg of nano-powdered calcium oxide, and 1 kg of nano-powdered silicon dioxide;

[0024] (2) Mix anhydrous magnesium chloride, anhydrous calcium chloride and water to make a saturated aqueous solution;

[0025] (3) According to the mass ratio of diatomite to saturated aqueous solution of 1:10, immerse the saturated aqueous solution into diatomite at 40°C, stir while heating, and rotate at 40 rpm to obtain energy storage granular materials;

[0026] (4) Add aluminum hydroxide, iron oxide, and zinc oxide to phosphoric acid, and react at 100°C for 10 minutes to obtain a liquid inorganic glue;

[0027...

Embodiment 2

[0030] A method for preparing a solar inorganic energy storage material, comprising the following steps:

[0031] (1) Weigh 30 kg of anhydrous magnesium chloride, 20 kg of anhydrous calcium chloride, 50 kg of water, 10 kg of nano powder aluminum hydroxide, 5 kg of nano powder iron oxide, 5 kg of nano powder zinc oxide, and 80 kg of 85% phosphoric acid 1 kg of nano-powdered alumina, 1 kg of nano-powdered calcium oxide, and 1 kg of nano-powdered silicon dioxide;

[0032] (2) Mix anhydrous magnesium chloride, anhydrous calcium chloride and water to make a saturated aqueous solution;

[0033] (3) The mass ratio of sepiolite to saturated aqueous solution is 1:10, immerse the saturated aqueous solution into the inorganic material at 40°C, stir while heating, and the speed is 40 rpm to obtain the energy storage granular material;

[0034] (4) Add aluminum hydroxide, iron oxide, and zinc oxide to phosphoric acid, and react at 100°C for 10 minutes to obtain a liquid inorganic glue;

...

Embodiment 3

[0038] A method for preparing a solar inorganic energy storage material, comprising the following steps:

[0039] (1) Weigh 32 kg of anhydrous magnesium chloride, 18 kg of anhydrous calcium chloride, 50 kg of water, 10 kg of nano powder aluminum hydroxide, 5 kg of nano powder iron oxide, 5 kg of nano powder zinc oxide, and 80 kg of 85% phosphoric acid 1 kg of nano-powdered alumina, 1 kg of nano-powdered calcium oxide, and 1 kg of nano-powdered silicon dioxide;

[0040] (2) Mix anhydrous magnesium chloride, anhydrous calcium chloride and water to make a saturated aqueous solution;

[0041] (3) Immerse the saturated aqueous solution into the vermiculite at 40°C, and stir while heating at a speed of 40 rpm to obtain the energy storage granular material;

[0042] (3) Add aluminum hydroxide, iron oxide, and zinc oxide to phosphoric acid, and react at 100°C for 10 minutes to obtain a liquid inorganic glue;

[0043] (4) Make aluminum oxide, calcium oxide, and silicon dioxide into c...

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Abstract

The invention discloses a solar inorganic energy storage material and a preparation method thereof, the solar inorganic energy storage material comprises the following raw materials by weight: 28-32 parts of anhydrous magnesium chloride, 18-21 parts of anhydrous calcium chloride, 50 parts of water, 10 parts of aluminum hydroxide, 5 parts of iron oxide, 5 parts of zinc oxide, 80 parts of phosphoric acid, 1 part of alumina, 1 part of calcium oxide, and 1 part of silica. The solar inorganic energy storage material disclosed by the invention is low in cost, high in enthalpy value and low in heat conductivity coefficient, belongs to an efficient thermal-insulation energy-saving material, has the enthalpy value of 3,500 J/g and the phase transition temperature of 25 +/-3 DEG C, is waterproof and fireproof, and has the heat conductivity coefficient of 0.0119 W/(m.k). The solar inorganic energy storage material has wide application prospects in the fields of solar heat utilization, waste heat recovery, electric power peak load shifting, heat management systems, building energy conservation and the like, has the characteristics of high latent heat storage density, no supercooling or superheating and the like, and shows wide application prospects in the field of clean energy application.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to a solar inorganic energy storage material and a preparation method and application thereof. Background technique [0002] Solar energy is a huge treasure house of energy, and it is a clean energy to solve the current energy crisis and environmental pollution. However, the energy density of solar radiation reaching the earth's surface is low, and it is restricted by factors such as geography, seasons, day and night, and weather changes, showing its rarity. , discontinuity and instability. In order to ensure the stable and uninterrupted operation of heating or power supply devices, it is necessary to use phase change heat storage devices to store energy when the energy is abundant and release it when the energy is insufficient. The phase-change heat storage materials in solar thermal power generation heat storage systems are mainly high-temperature water va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 高文明霍秀成骆相檠
Owner 贵州国锐鑫节能科技有限公司
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