CN104388049A - Inorganic composite heat storage material and preparation method thereof - Google Patents
Inorganic composite heat storage material and preparation method thereof Download PDFInfo
- Publication number
- CN104388049A CN104388049A CN201410600305.6A CN201410600305A CN104388049A CN 104388049 A CN104388049 A CN 104388049A CN 201410600305 A CN201410600305 A CN 201410600305A CN 104388049 A CN104388049 A CN 104388049A
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- CN
- China
- Prior art keywords
- heat accumulating
- nucleator
- expanded graphite
- crystalline hydrate
- hydrate salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 238000005338 heat storage Methods 0.000 title abstract description 8
- 239000011232 storage material Substances 0.000 title abstract description 7
- 239000002131 composite material Substances 0.000 title abstract description 3
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims description 9
- 230000008719 thickening Effects 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000002667 nucleating agent Substances 0.000 abstract 2
- 239000012071 phase Substances 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 graphite compound Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses an inorganic composite heat storage material and a preparation method thereof. The heat storage material is prepared through mixing a crystallized hydrate, a thickener, a nucleating agent and expandable graphite, wherein the mass fraction of the crystallized hydrate is 89.02%, the mass fraction of the thickener is 0.89%, the mass fraction of the nucleating agent is 0.09%, and the mass fraction of the expandable graphite is 10%. The material has the advantages that the speed of heat absorption and heat release is higher, and the appearance is unchanged 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 crystalline hydrate salt, thickening material, nucleator and expanded graphite 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 composite phase-change heat-storage material, 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 compounding heat accumulating, 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, when there is solid-liquid phase change, can keep shape invariance.
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 compounding heat accumulating, it is characterized in that: this heat accumulating is mixed by crystalline hydrate salt, thickening material, nucleator and expanded graphite and forms, wherein crystalline hydrate salt massfraction accounts for 89.02%, thickener qualities mark accounts for 0.89%, nucleator massfraction accounts for 0.09%, and expanded graphite massfraction accounts for 10%.
The preparation method of above-mentioned inorganic compounding heat accumulating, adopts following steps:
(1) expansible black lead is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible black lead is placed in stainless steel vessel, be heated to 800 DEG C and expand 60 seconds, obtain expanded graphite;
(2) crystalline hydrate salt is heated to fusing point fusing, according to quality than crystalline hydrate salt: thickening material: nucleator is that 1000:10:1 adds thickening material, nucleator, and stirs;
(3) by expanded graphite in mass ratio 1:10 join in the mixture described in second step, under agitation adsorb 1 hours, obtained heat accumulating.
The present invention has two 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 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:
10g expansible black lead is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible black lead is placed in stainless steel vessel, be heated to 800 DEG C and expand 60 seconds, obtain expanded graphite; Get 89.02g sal glauberi and be heated to 32 DEG C of fusings, add 0.89g thickening material, add 0.09g nucleator, stir; 10g expanded graphite is added in the mixture of fusing, under agitation adsorbs 1 hours, make heat accumulating.The transformation temperature of this material is 32 DEG C, and latent heat of phase change is 175kJ/kg.
Claims (2)
1. an inorganic compounding heat accumulating, it is characterized in that: this heat accumulating is mixed by crystalline hydrate salt, thickening material, nucleator and expanded graphite and forms, wherein crystalline hydrate salt massfraction accounts for 89.02%, thickener qualities mark accounts for 0.89%, nucleator massfraction accounts for 0.09%, and expanded graphite massfraction accounts for 10%.
2. a preparation method for inorganic compounding heat accumulating according to claim 1, is characterized in that it comprises the steps:
(1) expansible black lead is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible black lead is placed in stainless steel vessel, be heated to 800 DEG C and expand 60 seconds, obtain expanded graphite;
(2) crystalline hydrate salt is heated to fusing point fusing, according to quality than crystalline hydrate salt: thickening material: nucleator is that 1000:10:1 adds thickening material, nucleator, and stirs;
(3) by expanded graphite in mass ratio 1:10 join in the mixture described in second step, under agitation adsorb 1 hours, obtained heat accumulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600305.6A CN104388049A (en) | 2014-10-31 | 2014-10-31 | Inorganic composite heat storage material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600305.6A CN104388049A (en) | 2014-10-31 | 2014-10-31 | Inorganic composite heat storage material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104388049A true CN104388049A (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410600305.6A Pending CN104388049A (en) | 2014-10-31 | 2014-10-31 | Inorganic composite heat storage material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104388049A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947434A (en) * | 2017-04-14 | 2017-07-14 | 华南理工大学 | A kind of hydrated salt modified expanded graphite composite phase-change material and preparation method thereof |
| CN107488440A (en) * | 2017-08-11 | 2017-12-19 | 华南理工大学 | A kind of inorganic salts/expanded graphite/graphite flake block composite phase-change material of high heat conductance and preparation and application |
| CN108034409A (en) * | 2017-12-06 | 2018-05-15 | 嘉兴菲莫斯节能技术有限公司 | A kind of Inorganic phase change energy storage material |
| US12578152B2 (en) | 2021-09-22 | 2026-03-17 | Wellhead Power Solutions, Llc | Thermal energy storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2507476A1 (en) * | 2004-05-18 | 2005-11-18 | Sgl Carbon Ag | Latent heat storage material comprising a phase-change material having incorporated therein particles of natural graphite, anisotropic synthetic graphite or mixtures thereof |
| CN101805591A (en) * | 2010-04-19 | 2010-08-18 | 中国人民解放军理工大学工程兵工程学院 | Inorganic hydrated salt expanded graphite composite phase-changing heat storage material and preparation method thereof |
| CN102212341A (en) * | 2011-04-11 | 2011-10-12 | 北京京润宝网络技术有限公司 | Sodium sulfate decahydrate phase change energy storage material compositions |
| 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 |
-
2014
- 2014-10-31 CN CN201410600305.6A patent/CN104388049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2507476A1 (en) * | 2004-05-18 | 2005-11-18 | Sgl Carbon Ag | Latent heat storage material comprising a phase-change material having incorporated therein particles of natural graphite, anisotropic synthetic graphite or mixtures thereof |
| CN101805591A (en) * | 2010-04-19 | 2010-08-18 | 中国人民解放军理工大学工程兵工程学院 | Inorganic hydrated salt expanded graphite composite phase-changing heat storage material and preparation method thereof |
| CN102212341A (en) * | 2011-04-11 | 2011-10-12 | 北京京润宝网络技术有限公司 | Sodium sulfate decahydrate phase change energy storage material compositions |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 吴其胜: "《新能源材料》", 30 April 2012, 华东理工大学 * |
| 黄金等: "《无机水合盐相变材料Na2SO4 10H2O的研究进展》", 《材料导报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947434A (en) * | 2017-04-14 | 2017-07-14 | 华南理工大学 | A kind of hydrated salt modified expanded graphite composite phase-change material and preparation method thereof |
| CN107488440A (en) * | 2017-08-11 | 2017-12-19 | 华南理工大学 | A kind of inorganic salts/expanded graphite/graphite flake block composite phase-change material of high heat conductance and preparation and application |
| CN108034409A (en) * | 2017-12-06 | 2018-05-15 | 嘉兴菲莫斯节能技术有限公司 | A kind of Inorganic phase change energy storage material |
| US12578152B2 (en) | 2021-09-22 | 2026-03-17 | Wellhead Power Solutions, Llc | Thermal energy storage system |
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Application publication date: 20150304 |