CN105623618A - Inorganic hydrated salt composite phase change heat storage material and preparation method thereof - Google Patents
Inorganic hydrated salt composite phase change heat storage material and preparation method thereof Download PDFInfo
- Publication number
- CN105623618A CN105623618A CN201410600308.XA CN201410600308A CN105623618A CN 105623618 A CN105623618 A CN 105623618A CN 201410600308 A CN201410600308 A CN 201410600308A CN 105623618 A CN105623618 A CN 105623618A
- Authority
- CN
- China
- Prior art keywords
- storage material
- expanded graphite
- nucleator
- hydrated salt
- heat
- 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
Links
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an inorganic hydrated salt composite phase change heat storage material and a preparation method thereof. The heat storage material is composed of a mixture of crystalline hydrated salt, a thickening agent, a nucleating agent, and expanded graphite. The mass percentage of the crystalline hydrated salt is 79.13%, the mass percentage of the thickening agent is 0.791%, the mass percentage of the nucleating agent is 0.079%, and the mass percentage of the expanded graphite is 20%. The material has the advantages of faster endothermic and exothermic speeds, and no appearance change 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 agent, nucleator and expanded graphite compound to prepare.
Two, background technology
Energy-conservation is an important topic of field of energy utilization with environmental protection, and utilizing the latent heat of phase change of phase-change heat-storage material to store energy is a kind of novel power-saving technology. Phase-change material, in phase transition process, absorbs the heat of surrounding, and when ambient temperature reduces around, Environment release heat towards periphery, thus reaching to control ambient temperature and energy-conservation purpose. It all has wide practical use in fields such as Solar use, energy recovery, air conditioner refrigerating, building energy conservation, Aero-Space.
Solar energy, as the energy of a kind of inexpensive clean, has been widely used in the middle of productive life at present, but owing to the supply and demand of solar energy quantitatively can not well be mated with on the time and coordinate, causes mass energy to waste. As superfluous in solar energy on daytime, cause solar energy to waste, and night and overcast and rainy solar energy are not enough. The shortcoming of current heat accumulating ubiquity heat conductivility difference, the phase-change thermal storage parts therefore made are due to poor thermal conductivity, it is impossible to 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 problems referred to above, it is possible to by base material compound strong to phase-change heat-storage material and certain capacity of heat transmission, and add shaping material, make a kind of composite phase-change heat-storage material, improve heat conductivity and the sizing characteristics of heat accumulating.
Three, summary of the invention
It is an object of the invention to provide a kind of inorganic hydrated salt composite 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, when there is solid-liquid phase change, it is possible to keep shape invariance.
The preparation method that it is a further object of the present invention to provide above-mentioned heat accumulating.
It is an object of the invention to be achieved through the following technical solutions:
A kind of inorganic hydrated salt composite phase-change heat-storage material, it is characterized in that: this heat accumulating is made up of the mixing of crystalline hydrate salt, thickening agent, nucleator and expanded graphite, wherein crystalline hydrate salt mass fraction accounts for 79.13%, thickener qualities mark accounts for 0.791%, nucleator mass fraction accounts for 0.079%, and expanded graphite mass fraction accounts for 20%.
The preparation method of above-mentioned inorganic hydrated salt thermal energy storage material, adopts following steps:
(1) expansible graphite is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible graphite is placed in rustless steel container, 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 agent: nucleator is that 1000:10:1 adds thickening agent, nucleator, and stirs;
(3) expanded graphite 1:4 in mass ratio is joined in the mixture described in second step, under agitation adsorb 1 hours, prepare heat accumulating.
The present invention has two advantages:
(1) the heat accumulating heat conductivility that prepared by the present invention is higher, and heat absorption exotherm rate is faster;
(2) heat accumulating prepared by the present invention will not change its profile when phase transformation, it is possible to effectively prevents from revealing.
Four, detailed description of the invention
Below with example, embodiments of the present invention are described further:
20g expansible graphite is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible graphite is placed in rustless steel container, be heated to 800 DEG C and expand 60 seconds, obtain expanded graphite; Take the heating of 79.13g sal glauberi to 32 DEG C of fusings, add 0.791g thickening agent, add 0.079g nucleator, stir; 20g expanded graphite is added in the mixture of fusing, under agitation adsorb 1 hours, make heat accumulating. The phase transition temperature of this material is 32 DEG C, and latent heat of phase change is 154kJ/kg.
Claims (2)
1. an inorganic hydrated salt composite phase-change heat-storage material, it is characterized in that: this heat accumulating is made up of the mixing of crystalline hydrate salt, thickening agent, nucleator and expanded graphite, wherein crystalline hydrate salt mass fraction accounts for 79.13%, thickener qualities mark accounts for 0.791%, nucleator mass fraction accounts for 0.079%, and expanded graphite mass fraction accounts for 20%.
2. the preparation method of the inorganic hydrated salt composite phase-change heat-storage material described in a claim 1, it is characterised in that it comprises the steps:
(1) expansible graphite is placed in 60 DEG C of vacuum drying ovens dry 10 hours, dried expansible graphite is placed in rustless steel container, 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 agent: nucleator is that 1000:10:1 adds thickening agent, nucleator, and stirs;
(3) expanded graphite 1:4 in mass ratio is joined in the mixture described in second step, under agitation adsorb 1 hours, prepare heat accumulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600308.XA CN105623618A (en) | 2014-10-31 | 2014-10-31 | Inorganic hydrated salt composite phase change heat storage material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600308.XA CN105623618A (en) | 2014-10-31 | 2014-10-31 | Inorganic hydrated salt composite phase change heat storage material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105623618A true CN105623618A (en) | 2016-06-01 |
Family
ID=56038981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410600308.XA Pending CN105623618A (en) | 2014-10-31 | 2014-10-31 | Inorganic hydrated salt composite phase change heat storage material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105623618A (en) |
Cited By (3)
| 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 |
| CN110564373A (en) * | 2019-09-16 | 2019-12-13 | 北京华厚能源科技有限公司 | Inorganic hydrated salt composite phase-change heat storage material and preparation and use method thereof |
| CN113429941A (en) * | 2021-07-14 | 2021-09-24 | 东南大学 | Composite phase-change material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103194179A (en) * | 2013-04-01 | 2013-07-10 | 河南理工大学 | Composite phase change heat storage material and preparation method thereof |
| WO2013189891A1 (en) * | 2012-06-18 | 2013-12-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Latent heat storage materials based on aluminum sulfate hydrates |
| 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 CN201410600308.XA patent/CN105623618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2013189891A1 (en) * | 2012-06-18 | 2013-12-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Latent heat storage materials based on aluminum sulfate hydrates |
| 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 |
| CN103194179A (en) * | 2013-04-01 | 2013-07-10 | 河南理工大学 | Composite phase change heat storage material and preparation method thereof |
Cited By (3)
| 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 |
| CN110564373A (en) * | 2019-09-16 | 2019-12-13 | 北京华厚能源科技有限公司 | Inorganic hydrated salt composite phase-change heat storage material and preparation and use method thereof |
| CN113429941A (en) * | 2021-07-14 | 2021-09-24 | 东南大学 | Composite phase-change material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102604599A (en) | Inorganic phase change energy storage material | |
| CN104371658A (en) | Packaging shape-stabilizing method of inorganic hydrated salt phase-change heat storage material | |
| CN105154021A (en) | Highly heat-conducting phase change heat storage material and preparation method therefor | |
| CN104087254A (en) | High-heat-conductivity inorganic phase-change energy storage material | |
| CN104388055A (en) | Novel composite type organic-substance phase-change heat storage material and preparation method thereof | |
| CN104164219A (en) | Shape-stabilized phase-change energy storage material and preparation method thereof | |
| CN105295847A (en) | Novel metal base material shaping heat accumulating material and preparation method thereof | |
| CN104357023A (en) | Inorganic hydrous salt heat storage material and preparation method thereof | |
| CN105623618A (en) | Inorganic hydrated salt composite phase change heat storage material and preparation method thereof | |
| CN104388054A (en) | Novel composite organic heat storage material and preparation method thereof | |
| CN104357022A (en) | Inorganic phase change heat storage material and preparation method thereof | |
| CN105586011A (en) | Inorganic hydrated salt phase-change heat-storage material and preparation method thereof | |
| CN104388049A (en) | Inorganic composite heat storage material and preparation method thereof | |
| CN105154017A (en) | Highly-heat-conductive shaped phase-change heat-storage material and preparation method thereof | |
| CN104164218A (en) | Heat storage material and preparation method thereof | |
| CN105154022A (en) | Metal substrate highly heat-conducting heat storage material and preparation method therefor | |
| CN104371660A (en) | Inorganic composite hydrous salt phase change heat storage material and preparation method thereof | |
| CN106190040A (en) | A kind of preparation method of modified organic phase change energy storage material | |
| CN105623617A (en) | Inorganic hydrated salt composite heat storage material and preparation method therefor | |
| CN104371664A (en) | Novel composite organic phase-change heat storage material and preparation method thereof | |
| CN105154019A (en) | Inorganic finalized phase change heat storage material and preparation method therefor | |
| CN105131909A (en) | Inorganic composite high-heat-conductive phase-change thermal-storage material and preparation method thereof | |
| CN104178091A (en) | Phase-change heat-storage material and preparation method thereof | |
| CN104164221A (en) | Novel phase-change heat-storage material and preparation method thereof | |
| CN106543972A (en) | A kind of NEW TYPE OF COMPOSITE Organic phase change thermal storage material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |