CN105154019A - Inorganic finalized phase change heat storage material and preparation method therefor - Google Patents
Inorganic finalized phase change heat storage material and preparation method therefor Download PDFInfo
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- CN105154019A CN105154019A CN201510431052.9A CN201510431052A CN105154019A CN 105154019 A CN105154019 A CN 105154019A CN 201510431052 A CN201510431052 A CN 201510431052A CN 105154019 A CN105154019 A CN 105154019A
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Abstract
The invention discloses an inorganic finalized phase change heat storage material and a preparation method therefor. The heat storage material is prepared by compounding 74.3% by mass of sodium sulfate decahydrate, 8.3% by mass of expanded graphite and 17% by mass of through-hole foamed aluminum. The porosity of the selected through-hole foamed aluminum in the materials is over 90%. The material has the advantages that the material is fast in heat absorption and heat release speed and great in heat storage, and is not varied in shape after phase change.
Description
One, technical field
The present invention relates to phase-change heat-storage material field, refer in particular to a kind of heat accumulating utilizing sal glauberi, expanded graphite, fine-crystal spume aluminium alloy compound to prepare.
Two, background technology
Energy-conservation is an important topic of field of energy utilization with environmental protection, utilizes the latent heat of phase change storage power of phase-change heat-storage material to be a kind of novel power-saving technology.Phase change material, in phase transition process, absorbs the heat of surrounding environment, and when envrionment temperature reduces around, Environment release heat towards periphery, thus reach control ambient temperature and energy-conservation object.It all has wide practical use in fields such as Solar use, energy recovery, air conditioner refrigerating, building energy conservation, aerospace.
Sun power, as a kind of energy of inexpensive clean, is widely used in the middle of productive life at present, but quantitatively with on the time can not well mate and coordinate due to the supply and demand of sun power, causes mass energy to waste.As superfluous in sun power on daytime, cause sun power to waste, and night and overcast and rainy sun power not enough.The shortcoming of current heat accumulating ubiquity heat conductivility difference, the phase-change thermal storage parts therefore made, due to poor thermal conductivity, cannot give full play to the heat storage function of heat accumulating.Secondly, during heat accumulating generation solid-liquid phase change, fluid leakage problems can be caused.
In order to solve the problem, by phase-change heat-storage material and the strong base material compound of certain capacity of heat transmission, and shaping material can be added, making a kind of novel heat accumulating, improve thermal conductivity and the sizing characteristics of heat accumulating.
Three, summary of the invention
The object of this invention is to provide a kind of inorganic sizing phase-change heat-storage material, the phase-change thermal storage temperature of this heat accumulating is in the operating temperature range of solar water heater, and latent heat of phase change is higher, and heat conductivility is better.
Another object of the present invention is to provide the preparation method of above-mentioned heat accumulating.
The object of the invention is to be achieved through the following technical solutions:
A kind of inorganic sizing phase-change heat-storage material, it is characterized in that: this heat accumulating is made up of sal glauberi, expanded graphite, fine-crystal spume aluminium alloy compound, wherein the massfraction of sal glauberi accounts for 74.3%, expanded graphite massfraction accounts for 8.3%, the massfraction of fine-crystal spume aluminium alloy accounts for 17%, and the fine-crystal spume aluminium alloy voidage selected in above-mentioned materials is more than 90%.
The preparation method of above-mentioned inorganic sizing phase-change heat-storage material, adopts following steps:
(1) fine-crystal spume aluminium alloy is processed into required shape and size;
(2) make mould according to required shape, the fine-crystal spume aluminium alloy processed is placed in mould;
(3) Graphite Powder 99 of drying is placed in encloses container and is heated to 800 DEG C, form expanded graphite;
(4) melted by sal glauberi, add expanded graphite according to 10% mass ratio, mixture, after 1 hour, is injected mould by whip attachment, makes mixture liquid just submergence fine-crystal spume aluminium alloy;
(5) by sal glauberi, expanded graphite, the cooling of fine-crystal spume aluminium alloy mixture, remove mould, obtain high heat conduction phase-change heat-storage material.
The present invention has three advantages:
(1) the heat accumulating heat conductivility prepared of the present invention is higher, and exotherm rate is faster in heat absorption;
(2) heat accumulating that prepared by the present invention maintains the physics-chem characteristic of each composition of heat accumulating, has stable, that enthalpy of phase change is high feature.
(3) heat accumulating that prepared by the present invention can not change its profile when phase transformation, can effectively prevent from revealing.
Four, embodiment
Below with example, embodiments of the present invention are described further:
Fine-crystal spume aluminium alloy is processed into the right cylinder of φ 46*1500.Make mould according to the size of φ 46*1500, and ready-made fine-crystal spume aluminium alloy is inserted in mould.The Graphite Powder 99 of drying is placed in encloses container and is heated to 800 DEG C, form expanded graphite.By sal glauberi heat fused, add expanded graphite according to 10% mass ratio, mixture, after 1 hour, is injected mould by whip attachment, makes mixture liquid amount just submergence fine-crystal spume aluminium alloy.Heat accumulating of shaping is obtained after mould is removed in cooling.Fine-crystal spume aluminium alloy selects the material of porosity 90%, and therefore in mixture, fine-crystal spume aluminium alloy massfraction accounts for 17%, and sal glauberi massfraction accounts for 74.3%, and expanded graphite massfraction accounts for 8.3%.This material phase transformation latent heat is 178kJ/kg.
Claims (2)
1. an inorganic sizing phase-change heat-storage material, it is characterized in that: this heat accumulating is made up of sal glauberi, expanded graphite, fine-crystal spume aluminium alloy compound, wherein the massfraction of sal glauberi accounts for 74.3%, expanded graphite massfraction accounts for 8.3%, the massfraction of fine-crystal spume aluminium alloy accounts for 17%, and the fine-crystal spume aluminium alloy voidage selected in above-mentioned materials is more than 90%.
2. a preparation method for inorganic sizing phase-change heat-storage material according to claim 1, is characterized in that it comprises the steps:
(1) fine-crystal spume aluminium alloy is processed into required shape and size;
(2) make mould according to required shape, the fine-crystal spume aluminium alloy processed is placed in mould;
(3) Graphite Powder 99 of drying is placed in encloses container and is heated to 800 DEG C, form expanded graphite;
(4) melted by sal glauberi, add expanded graphite according to 10% mass ratio, mixture, after 1 hour, is injected mould by whip attachment, makes mixture liquid just submergence fine-crystal spume aluminium alloy;
(5) by sal glauberi, expanded graphite, the cooling of fine-crystal spume aluminium alloy mixture, remove mould, obtain high heat conduction phase-change heat-storage material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510431052.9A CN105154019A (en) | 2015-07-16 | 2015-07-16 | Inorganic finalized phase change heat storage material and preparation method therefor |
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| CN201510431052.9A CN105154019A (en) | 2015-07-16 | 2015-07-16 | Inorganic finalized phase change heat storage material and preparation method therefor |
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| CN105154019A true CN105154019A (en) | 2015-12-16 |
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| CN201510431052.9A Pending CN105154019A (en) | 2015-07-16 | 2015-07-16 | Inorganic finalized phase change heat storage material and preparation method therefor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118606A (en) * | 2016-06-25 | 2016-11-16 | 董晓 | A kind of preparation method of glyceride/foamed aluminium phase-change heat-storage material |
| CN107098718A (en) * | 2017-05-12 | 2017-08-29 | 哈尔滨工业大学 | It is a kind of suppress to sinter, the calcium base chemical heat storage material that strengthens heat conduction and preparation method thereof |
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| CN101724381A (en) * | 2009-12-22 | 2010-06-09 | 中国科学技术大学 | Setting phase change energy storage material with high-thermal conductivity and preparation method thereof |
| CN102501357A (en) * | 2011-12-09 | 2012-06-20 | 长沙理工大学 | Polymer/foamed aluminium composite material and production method thereof |
| CN103436240A (en) * | 2013-07-30 | 2013-12-11 | 北京航空航天大学 | Foam metal composite phase-change material and preparation method thereof |
| CN103525373A (en) * | 2012-07-05 | 2014-01-22 | 中国科学院大连化学物理研究所 | Composite amorphous phase-change heat storage material and preparation method thereof |
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2015
- 2015-07-16 CN CN201510431052.9A patent/CN105154019A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724381A (en) * | 2009-12-22 | 2010-06-09 | 中国科学技术大学 | Setting phase change energy storage material with high-thermal conductivity and preparation method thereof |
| CN102501357A (en) * | 2011-12-09 | 2012-06-20 | 长沙理工大学 | Polymer/foamed aluminium composite material and production method thereof |
| CN103525373A (en) * | 2012-07-05 | 2014-01-22 | 中国科学院大连化学物理研究所 | Composite amorphous phase-change heat storage material and preparation method thereof |
| CN103436240A (en) * | 2013-07-30 | 2013-12-11 | 北京航空航天大学 | Foam metal composite phase-change material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118606A (en) * | 2016-06-25 | 2016-11-16 | 董晓 | A kind of preparation method of glyceride/foamed aluminium phase-change heat-storage material |
| CN107098718A (en) * | 2017-05-12 | 2017-08-29 | 哈尔滨工业大学 | It is a kind of suppress to sinter, the calcium base chemical heat storage material that strengthens heat conduction and preparation method thereof |
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Application publication date: 20151216 |
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