Novel inorganic normal-temperature phase-change energy-storing material for facility agricultural temperature control as well as preparation method thereof

A technology of phase-change energy storage materials and facility agriculture, which is applied in the field of new inorganic room-temperature phase-change energy storage materials, can solve the problems of needing improvement and low latent heat of phase change, and achieve the effect of easy operation and simple process

Inactive Publication Date: 2018-07-06
河北赚多罗智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inorganic phase change material will not produce supercooling phenomenon and phase separation phenomenon, but the phase change latent heat of this kind of phase change material is low, and needs to be improved.

Method used

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  • Novel inorganic normal-temperature phase-change energy-storing material for facility agricultural temperature control as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, a method for preparing a novel inorganic normal-temperature phase-change energy storage material for temperature control in facility agriculture, the specific method is as follows:

[0024] (1) Get sodium thiosulfate pentahydrate, calcium chloride hexahydrate, decahydrate and sodium carbonate, sodium chloride and magnesium sulfate heptahydrate by proportioning and carry out physical mixing;

[0025] (2) After mixing evenly, put it in a container and heat it in a constant temperature water bath at 60°C. During the heating process, use a stirring rod to stir once every 12 minutes to facilitate the melting of the material until all the crystals are melted;

[0026] (3) Next, add water, iron powder, fly ash and perlite to the material prepared in step (2), and stir evenly, then put an ultrasonic vibrating rod into the material, and vibrate ultrasonically for 20 minutes.

[0027] In this embodiment, the phase change energy storage material include...

Embodiment 2

[0029] Such as figure 1 As shown, a method for preparing a novel inorganic normal-temperature phase-change energy storage material for temperature control in facility agriculture, the specific method is as follows:

[0030] (1) Get sodium thiosulfate pentahydrate, calcium chloride hexahydrate, decahydrate and sodium carbonate, sodium chloride and magnesium sulfate heptahydrate by proportioning and carry out physical mixing;

[0031] (2) After mixing evenly, put it in a container and heat it in a constant temperature water bath at 68°C. During the heating process, use a stirring rod to stir once every 10 minutes to facilitate the melting of the material until all the crystals are completely melted;

[0032] (3) Then add water, iron powder, fly ash and perlite to the material prepared in step (2), and stir evenly, then put an ultrasonic vibration rod into the material, and vibrate ultrasonically for 16 minutes.

[0033] In this embodiment, the phase change energy storage materi...

Embodiment 3

[0035] Such as figure 1 As shown, a method for preparing a novel inorganic normal-temperature phase-change energy storage material for temperature control in facility agriculture, the specific method is as follows:

[0036] (1) Get sodium thiosulfate pentahydrate, calcium chloride hexahydrate, decahydrate and sodium carbonate, sodium chloride and magnesium sulfate heptahydrate by proportioning and carry out physical mixing;

[0037] (2) After mixing evenly, put it in a container and heat it in a constant temperature water bath at 65°C. During the heating process, use a stirring rod to stir once every 9 minutes to facilitate the melting of the material until all the crystals are melted;

[0038] (3) Next, add water, iron powder, fly ash and perlite to the material prepared in step (2), and stir evenly, then put an ultrasonic vibrating rod into the material, and vibrate ultrasonically for 18 minutes.

[0039] In this embodiment, the phase change energy storage material includes...

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Abstract

The invention discloses a novel inorganic normal-temperature phase-change energy-storing material for facility agricultural temperature control and relates to the technical field of an inorganic material. The phase-change energy-storing material comprises the following components in percentage by mass: 13 to 17 percent of sodium thiosulfate pentahydrate, 18 to 22 percent of calcium chloride hexahydrate, 16 to 20 percent of sodium carbonate decahydrate, 6 to 10 percent of sodium chloride, 11 to 15 percent of magnesium sulfate heptahydrate, 11 to 15 percent of perlite, 3 percent of iron powder,6 to 10 percent of coal ash and 2 to 4 percent of water. The preparation method comprises the steps of mixing the materials, stirring and the like. The sodium thiosulfate pentahydrate, the calcium chloride hexahydrate, the sodium carbonate decahydrate, the sodium chloride and the magnesium sulfate heptahydrate serve as the main components of the phase-change material, the water, the iron powder, the coal ash, the perlite and the like are added to serve as additives, the supercooling degree of the phase-change material is reduced, the phase-change material can be preserved at normal temperature, the phase-change latent heat is high and the heat release quantity is large.

Description

technical field [0001] The invention relates to the technical field of inorganic materials, in particular to a novel inorganic normal-temperature phase-change energy storage material for temperature control in facility agriculture. Background technique [0002] Phase change materials, due to their high latent heat, are used as energy storage materials. The heat released by the material during the phase change process can be used as a heat storage material when used for heating and heat preservation; the material absorbs heat during the phase change process and can be used as a cold storage material when used for cooling. Phase change materials are widely used in aerospace, construction, medical care and other fields. Inorganic hydrated salt phase change materials have high phase change latent heat, most of these materials have a phase change latent heat greater than 200kJ / kg, and the phase change temperature distribution is between 0 and 100°C, which is the most commonly us...

Claims

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Application Information

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IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 王宇琛张萍倪洪亮张晋王蕊丁一清汤旸
Owner 河北赚多罗智能科技有限公司
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