CN1225519C - Phase-transition material for storing heat - Google Patents
Phase-transition material for storing heat Download PDFInfo
- Publication number
- CN1225519C CN1225519C CN 03113682 CN03113682A CN1225519C CN 1225519 C CN1225519 C CN 1225519C CN 03113682 CN03113682 CN 03113682 CN 03113682 A CN03113682 A CN 03113682A CN 1225519 C CN1225519 C CN 1225519C
- Authority
- CN
- China
- Prior art keywords
- phase change
- heat storage
- storage material
- change heat
- water
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000005338 heat storage Methods 0.000 claims abstract description 47
- 239000013078 crystal Substances 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 239000011232 storage material Substances 0.000 claims description 43
- 239000008393 encapsulating agent Substances 0.000 claims description 17
- 230000036571 hydration Effects 0.000 claims description 5
- 238000006703 hydration reaction Methods 0.000 claims description 5
- 150000003839 salts Chemical group 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 35
- 239000012782 phase change material Substances 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 229940125904 compound 1 Drugs 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- 241001274216 Naso Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
- Central Heating Systems (AREA)
Abstract
The present invention relates to a phase-transition material for storing heat. The present invention is characterized in that the present invention comprises saline-alkali compounds with crystal water and sealants, wherein the weight of the saline-alkali compounds with crystal water takes the total weight more than half. The sealants are used as an isolating layer, so the saline-alkali compounds with crystal water are separated from air to prevent contacting air and water vapor dispersing, and the phenomenon of water depletion of the phase-transition material for storing heat is reduced; thereby, the phase-transition material for storing heat has the advantage of favorable heat storage and heat exchange performance; the present invention can protect containers and other components from being easily corroded, so the service life of the containers and other components is prolonged.
Description
[technical field]
The present invention relates to a kind of phase change heat storage material.
[background technology]
The research of existing phase change material mainly concentrates on the mistake cold-peace that solves phase change heat storage material and separates out problem, and the research deficiency of the phase change heat storage material degradation that causes for the phenomenon of losing water of phase change material.Existing phase change heat storage material, the higher phase change material of transformation temperature particularly, in actual use because liquid temperature is higher, moisture evaporation is serious, in the time of in being contained in the non-tight container, moisture is easily a large amount of to run off, and phase change material can not be replied original state when heat release, liberated heat is few, causes that the phase change heat storage material heat storage performance descends.And because phase change material volume change when inhaling heat release, the part of container and other member is in be immersed in the phase change material and exposes, cause the corrosion of member in space intercycle variation.
[summary of the invention]
The objective of the invention is to deficiency at existing phase change heat storage material, provide a kind of heat storage performance good, can prevent water evaporates, reduce the corrosive phase change heat storage material.
The object of the present invention is achieved like this:
A kind of phase change heat storage material is characterized in that including the salinization compound, the encapsulant that contain crystal water, and the weight that wherein contains the salinization compound of crystal water accounts for more than 1/2nd of gross weight.
Aforesaid a kind of phase change heat storage material is characterized in that the described salinization compound that contains crystal water is a salt hydrate.
Aforesaid a kind of phase change heat storage material is characterized in that described salt hydrate is 10 aqueous sodium persulfates.
Aforesaid a kind of phase change heat storage material is characterized in that the described salinization compound that contains crystal water is a hydration alkali.
Aforesaid a kind of phase change heat storage material is characterized in that described hydration alkali is 8 water hydrated bartas.
Aforesaid a kind of phase change heat storage material is characterized in that described encapsulant is a paraffin.
Aforesaid a kind of phase change heat storage material is characterized in that described encapsulant is a grease.
Aforesaid a kind of phase change heat storage material is characterized in that described encapsulant is a pitch.
Aforesaid a kind of phase change heat storage material is characterized in that including 1/3rd the water that is less than gross weight in being added on.
The present invention utilizes encapsulant will contain the salinization compound and the air insulated of crystal water as sealing coat; prevent to contact with air and prevent that water vapour from distributing; reduced the phenomenon of losing water of phase change heat storage material; make phase change heat storage material have good accumulation of heat and heat exchange property; and can protect container and other member to be not easy corrosion, improved container and other life of components.
[description of drawings]
Fig. 1 is the synoptic diagram of Application Example of the present invention.
[embodiment]
A kind of phase change heat storage material comprises the salinization compound, the encapsulant that contain crystal water, and the weight that wherein contains the salinization compound of crystal water accounts for more than 1/2nd of gross weight.The salinization compound that contains crystal water can be salt hydrate, or hydration alkali, as 8 water hydrated bartas (Ba (OH)
28H
2O), 10 aqueous sodium persulfate (NaSO
410H
2The O saltcake).Encapsulant can be paraffin, grease or pitch.
Because when using the salinization compound contain crystal water during, react and lose the phase transformation ability if the salinization compound of crystal water contacts with air to produce, as 8 water hydrated bartas (Ba (OH) as phase change heat storage material
28H
2O) can react the generation barium carbonate and lose the phase transformation ability with carbon dioxide in air.Therefore, the present invention utilizes encapsulant will contain the salinization compound and the air insulated of crystal water as sealing coat, prevents to contact with air and prevent that water vapour from distributing.
In phase change heat storage material, also can add 1/3rd the water that is less than gross weight, in order to guarantee when phase change heat storage material loses portion of water, still to keep preferable performance.
When phase change material is contained in the container, because the encapsulant boiling point greater than water, does not react with the salinization compound that contains crystal water.Can not be dissolved in the salinization compound that contains crystal water, and density is less than the salinization compound that contains crystal water, lighter than the salinization compound that contains crystal water, therefore always generate one deck sealing (solid-state or liquid) and cover on the salinization compound that contains crystal water, the salinization compound that will contain crystal water is isolated.So reducing the salinization compound that contains crystal water effectively contacts with air and prevents that moisture from entering in the atmosphere, ensured the heat storage performance of phase change heat storage material.
After phase change heat storage material heat absorption fusion, whole volumetric expansion forms interface A place, top, and after the phase change heat storage material heat release, whole volume-diminished, separation surface drops to separation surface B place.Because encapsulant generates one deck sealing (solid-state or liquid) layer and covers on the salinization compound that contains crystal water, the salinization compound that will contain crystal water is isolated.When phase change material volume change when inhaling heat release, the salinization compound and the container that contain crystal water are isolated with other member, can not cause the corrosion of member, simultaneously, sealer coat is isolated with other members and atmosphere with container inner wall, avoids being exposed under saline-alkali environment the corrosion that produces in the air.
This phase change heat storage material can be applicable to electric water heater and other regenerative apparatuses, as shown in Figure 1, the salinization compound 1 that will contain crystal water, encapsulant 2 is contained in the container 3, the member 4 that is made of electrical heating element and heat exchange element etc. is housed in container 1, wherein phase change heat storage material is the salinization compound 1 that contains crystal water in container 3 formation lower floors, and the upper strata is an encapsulant 2, and encapsulant 2 forms sealer coat 5.After electrical heating element was with the phase change heat storage material heating, phase change heat storage material became liquid phase from solid phase, and when heat took out in container 1, phase change heat storage material became solid phase from liquid phase.
Found through experiments, 8 water hydrated bartas, paraffin are applied in the electric water heater, phase change heat storage material undergoes phase transition when the 78C left and right sides, when directly from the import of heat exchange element disk-shaped tube, inserting cold water, hot water is flowed out in the outlet of disk-shaped tube, the electric water heater of 10 liters of inner bags can be emitted and be risen the above hot water of 45C more 60, can be for two people usefulness of having a bath.
Claims (11)
1, a kind of phase change heat storage material is characterized in that including the salinization compound, the encapsulant that contain crystal water, and the weight that wherein contains the salinization compound of crystal water accounts for more than 1/2nd of gross weight.
2, a kind of phase change heat storage material according to claim 1 is characterized in that the described salinization compound that contains crystal water is a salt hydrate.
3, a kind of phase change heat storage material according to claim 2 is characterized in that described salt hydrate is 10 aqueous sodium persulfates.
4, a kind of phase change heat storage material according to claim 1 is characterized in that the described salinization compound that contains crystal water is a hydration alkali.
5,, it is characterized in that described hydration alkali is 8 water hydrated bartas according to the described a kind of phase change heat storage material of claim 4.
6, a kind of phase change heat storage material according to claim 1 is characterized in that described encapsulant is a paraffin.
7, a kind of phase change heat storage material according to claim 1 is characterized in that described encapsulant is a grease.
8, a kind of phase change heat storage material according to claim 1 is characterized in that described encapsulant is a pitch.
9, a kind of phase change heat storage material according to claim 6 is characterized in that including 1/3rd the water that is less than gross weight in being added on.
10, a kind of phase change heat storage material according to claim 7 is characterized in that including 1/3rd the water that is less than gross weight in being added on.
11, a kind of phase change heat storage material according to claim 8 is characterized in that including 1/3rd the water that is less than gross weight in being added on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113682 CN1225519C (en) | 2003-01-25 | 2003-01-25 | Phase-transition material for storing heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113682 CN1225519C (en) | 2003-01-25 | 2003-01-25 | Phase-transition material for storing heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1519294A CN1519294A (en) | 2004-08-11 |
| CN1225519C true CN1225519C (en) | 2005-11-02 |
Family
ID=34283771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03113682 Expired - Fee Related CN1225519C (en) | 2003-01-25 | 2003-01-25 | Phase-transition material for storing heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1225519C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506942C (en) * | 2006-09-26 | 2009-07-01 | 上海海事大学 | Material for storing heat of phase change in low temperature, and preparation method |
-
2003
- 2003-01-25 CN CN 03113682 patent/CN1225519C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506942C (en) * | 2006-09-26 | 2009-07-01 | 上海海事大学 | Material for storing heat of phase change in low temperature, and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1519294A (en) | 2004-08-11 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG CHANGQING ( GROUP ) CO., LTD. Free format text: FORMER OWNER: CHANGQING SCI-TECH DEVELOPMENT CO., LTD., ZHONGSHAN Effective date: 20080307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080307 Address after: 100, Xinhua East Road, Xiaolan, Guangdong, Zhongshan Patentee after: GUANGDONG CHANT Group Inc. Address before: Xiaolan Road, Xiaolan Road, Xiaolan Town, Zhongshan, Guangdong Patentee before: Zhongshan Changqing Technology Development Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200901 Address after: 528400 2nd floor, No.3, No.42, South Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan chuang'erte Smart Home Technology Co.,Ltd. Address before: 528415 No. 100 Xinhua East Road, Xiaolan, Guangdong, Zhongshan Patentee before: GUANGDONG CHANT Group Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 Termination date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |