CN102775967A - Low-temperature cold-storage material combination - Google Patents
Low-temperature cold-storage material combination Download PDFInfo
- Publication number
- CN102775967A CN102775967A CN2012102929530A CN201210292953A CN102775967A CN 102775967 A CN102775967 A CN 102775967A CN 2012102929530 A CN2012102929530 A CN 2012102929530A CN 201210292953 A CN201210292953 A CN 201210292953A CN 102775967 A CN102775967 A CN 102775967A
- Authority
- CN
- China
- Prior art keywords
- gram
- storage material
- nano
- material combination
- nacl
- 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
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a -17 DEG C eutectic salt cold-storage material combination comprising sodium nitrate, urea and water. The -17 DEG C eutectic salt cold-storage material combination mainly comprises sodium nitrate, urea, water and additives such as borax, sodium chloride, silicon dioxide obtained through a gas phase method and the like. The -17 DEG C eutectic salt cold-storage material combination has a crystallization temperature of -18 to -16 DEG C, and the fusion heat at -17 DEG C reaches 240kJ/kg.
Description
Technical field
The present invention relates to a kind of-17 ℃ of eutectic salts storage cold material compsn, its Tc is-18～-16 ℃, adds suitable nucleator and thickening material, the mistake cold-peace lamination problem that has existed when effectively having overcome the inorganic salt crystallization.According to resulting-17 ℃ of storage cold material compsns of the present invention, can be used for refrigeration, short distances transportation etc. under-18～-16 ℃ of conditions of various perishable prod.
Background technology
Refrigerated shipment receives the influence of outside atmosphere bigger, and Refrigeration Technique is had higher requirements, and is link the weakest in each link of Cold Chain Logistics.China is annual because the perishable prod waste that refrigerated shipment causes accounts for 25%～30% of whole cold chain perishable prod waste.In the refrigerated shipment process; The product that refrigerator carriage generally adopts the onboard fuel compressor to carry out in transit is fresh-keeping or freezing, though can be according to the storage request control vehicle interior temperature of shipping products, transportation cost is higher; According to statistics; China's refrigerated shipment cost accounts for 70% of product total cost, must not be far above the refrigerated shipment cost above the international standard of product total cost 50%, and wherein energy consumption for cooling accounts for quite great proportion in the transportation cost; And fuel compressor on average per hour is used for refrigerating consumption oil about about 3L, and this has constituted sizable cost pressure.In addition, the consumption environmental pollution of fuel, carbon emission etc. all produce negative influence.
In addition, in the short distances transportation process, also solve of short duration deepfreeze problem with ice cube usually, but, only can make temperature maintenance in the compartment in 0～10 ℃ of scope, can not satisfy the storage requirement of frozen prods because the melting point of ice is 0 ℃.
The present invention has announced, and a kind of-17 ℃ of eutectic salts are stored up the cold material compsn; Its Tc can remain on-18～-16 ℃; The storage cold reaches 240kJ/kg; According to enclosed space size with store up the different of cold material consumption, can keep envrionment temperature-16～-10 with this material as cold storage material and ℃ not wait, can satisfy the preservation demand of most of frozen prodss.Select to be adapted to the thickening material of mineral compound compatibility in the prescription of the present invention, solved the layering and precipitating problem that inorganic salt occur at low temperatures easily.
Summary of the invention
The object of the present invention is to provide a kind of-17 ℃ of eutectic salts storage cold material compsn; Tc is-18～-16 ℃; The storage cold can reach 240kJ/kg, can be used for the refrigeration (like refrigerator carriage, freezer, small-sized vehicle-mounted insulation can etc.) of the good enclosed space of insulation, does not use fuel compressor; Improve the comprehensive utilization ratio of the energy, reduced pollutant emission.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of-17 ℃ of eutectic salts storage cold material compsn, staple comprises NaNO
3, CO (NH
2)
2, H
2O and Na
2B
4O
710H
2O, NaCl and vapor phase process SiO
2Deng additive
NaNO in said composition
3, CO (NH
2)
2, H
2O is main ingredient, wherein NaNO
3Be 25.5～35%, CO (NH
2)
2Be 3～12%, H
2O is 45～67%, wherein NaNO
3, CO (NH
2)
2Mass ratio 17: 6～17: 2, the mass content of other components is following:
Na
2B
4O
7·10H
2O 1.3～4.0％
NaCl 0.5～1.5％
Vapor phase process SiO
22.0～4.3%
Storage cold material provided by the present invention has been carried out the crystallization temperature measuring according to the cooling curve method, and with its latent heat of fusion of DSC Differential scanning calorimetry test.Simultaneously, adopt the normal temperature settled process to storage cold stability problem, be put in room temperature condition more following 24 hours after freezing fully, it is cold that it is slowly released, and observes its insoluble situation that salts out.
Embodiment
The present invention can make those skilled in the art more comprehensively understand the present invention, but not limit the present invention in any way through the present invention of following specific embodiment more detailed description.
Embodiment 1
Accurately measure 456 gram water, under agitation condition, add 340 gram NaNO successively
3, 120 gram CO (NH
2)
2, 40 the gram Na
2B
4O
710H
2O, 12 gram NaCl, 32 gram vapor phase process SiO
2, be stirred to dissolving fully.According to its Tc of cooling curve method test be-17.3 ℃, and latent heat of fusion is 247kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Embodiment 2
Accurately measure 67 kg water, under agitation condition, add 25.5 kilograms of NaNO successively
3, 3 kilograms of CO (NH
2)
2, 2 kilograms of Na
2B
4O
710H
2O, 500 gram NaCl, 2 kilograms of vapor phase process SiO
2, be stirred to dissolving fully.According to its Tc of cooling curve method test be-16.8 ℃, and latent heat of fusion is 253kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Embodiment 3
Accurately measure 159.9 gram water, under agitation condition, add 99 gram NaNO successively
3, 19.8 gram CO (NH
2)
2, 3.9 the gram Na
2B
4O
710H
2O, 4.5 gram NaCl, 12.9 gram vapor phase process SiO
2, be stirred to dissolving fully.According to its Tc of cooling curve method test be-17.8 ℃, and latent heat of fusion is 256kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Embodiment 4
Accurately measure 135.7 gram water, under agitation condition, add 69 gram NaNO successively
3, 9.89 gram CO (NH
2)
2, 7.36 the gram Na
2B
4O
710H
2O, 1.84 gram NaCl, 6.21 gram vapor phase process SiO
2, be stirred to dissolving fully.According to its Tc of cooling curve method test be-16.5 ℃, and latent heat of fusion is 240kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Embodiment 5
Accurately measure 4.5 kg water, under agitation condition, add 3.5 kilograms of NaNO successively
3, 440 gram CO (NH
2)
2, 180 the gram Na
2B
4O
710H
2O, 130 gram NaCl, 250 gram vapor phase process SiO
2, be stirred to dissolving fully.According to its Tc of cooling curve method test be-17.9 ℃, and latent heat of fusion is 261kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Comparative Examples 1
Accurately measure 228 gram water, under agitation condition, add 170 gram NaNO successively
3, 60 gram CO (NH
2)
2, 20 the gram Na
2B
4O
710H
2O, 6 gram NaCl are stirred to dissolving fully.According to its Tc of cooling curve method test be-17.5 ℃, and latent heat of fusion is 245kJ/kg, places at normal temperatures 24 hours after freezing fully, and the bottom obviously has crystallization to separate out.
Comparative Examples 2
Accurately measure 152 gram water, under agitation condition, add 113.3 gram NaNO successively
3, 40 gram CO (NH
2)
2, 10.7 gram vapor phase process SiO
2, be stirred to dissolving fully.According to its crystallization initiation temperature of cooling curve method test be-30.1 ℃, and latent heat of fusion is 249kJ/kg, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Comparative Examples 3
Accurately measure 295 gram water, under agitation condition, add 150 gram NaNO successively
3, 70.6 gram CO (NH
2)
2, 16 the gram Na
2B
4O
710H
2O, 4 gram NaCl, 13.5 gram vapor phase process SiO
2, be stirred to dissolving fully.According to cooling curve method test, Tc is fixing, places at normal temperatures 24 hours after freezing fully, and no crystallization is separated out.
Through the foregoing description 1～5, the Tc of storage cold material compsn disclosed by the invention is-18～-16 ℃, and material property is more stable, and obvious lamination problem does not appear in periodic crystallisation.Comparative Examples 1 shows, does not add vapor phase process SiO
2Little to its Tc influence, but stability of material is poor; In Comparative Examples 2, do not add Na
2B
4O
710H
2O and NaCl, the material condensate depression reaches 13 ℃, and is little to the latent heat of fusion influence.In Comparative Examples 3, adjustment NaNO
3With CO (NH
2)
2Between ratio be 17: 8, little to the stability influence of material, but the serious drift of Tc, Chu Leng does not have using value.
The above is merely preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention, so all variations that is equal to according to characteristic raw material, characterization step and the prescription of scope according to the invention all should be included within the claim of the present invention.
Claims (5)
1.-17 ℃ of eutectic salts storage cold material compsn of the present invention is characterized in that containing NaNO
3, CO (NH
2)
2, H
2O and Na
2B
4O
710H
2O, NaCl and vapor phase process SiO
2Deng additive.
2. compsn according to claim 1 is characterised in that the storage cold material is mainly by NaNO
3, CO (NH
2)
2, H
2O eutectic salts mixture constitutes.
3. compsn according to claim 2 is characterized in that NaNO
3, CO (NH
2)
2Ratio is mass ratio 17: 6～17: 2.
4. compsn according to claim 2 is characterized in that containing NaNO
3Be 25.5～35%, CO (NH
2)
2Be 3～12%, H
2O is 45～67%.
5. compsn according to claim 1, its characteristic is following in each additive level:
Na
2B
4O
7·10H
2O 1.3～4.0％
NaCl 0.5～1.5％
Vapor phase process SiO
22.0～4.3%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102929530A CN102775967A (en) | 2012-08-17 | 2012-08-17 | Low-temperature cold-storage material combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102929530A CN102775967A (en) | 2012-08-17 | 2012-08-17 | Low-temperature cold-storage material combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102775967A true CN102775967A (en) | 2012-11-14 |
Family
ID=47121080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102929530A Pending CN102775967A (en) | 2012-08-17 | 2012-08-17 | Low-temperature cold-storage material combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102775967A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885801A (en) * | 2014-09-23 | 2016-08-24 | 李敬武 | Novel cool storage agent, preparation method of novel cool storage agent and medical cold compress product containing novel cool storage agent |
| CN106753256A (en) * | 2016-11-25 | 2017-05-31 | 贺迈新能源科技（上海）有限公司 | A kind of phase-change material of Bidirectional temperature-controlling, preparation method and its usage |
| CN110172332A (en) * | 2019-04-25 | 2019-08-27 | 武汉理工大学 | A kind of NaNO of high specific heat capacity3Phase-change heat-storage material and preparation method thereof |
| CN110257020A (en) * | 2019-06-28 | 2019-09-20 | 深圳市爱能森科技有限公司 | A kind of phase-changing energy storage material and preparation method thereof with two-phase changing temperature degree |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030097238A (en) * | 2002-06-20 | 2003-12-31 | 한국생산기술연구원 | Low Temperature PCM for Cold Storage System |
-
2012
- 2012-08-17 CN CN2012102929530A patent/CN102775967A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030097238A (en) * | 2002-06-20 | 2003-12-31 | 한국생산기술연구원 | Low Temperature PCM for Cold Storage System |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885801A (en) * | 2014-09-23 | 2016-08-24 | 李敬武 | Novel cool storage agent, preparation method of novel cool storage agent and medical cold compress product containing novel cool storage agent |
| CN106753256A (en) * | 2016-11-25 | 2017-05-31 | 贺迈新能源科技（上海）有限公司 | A kind of phase-change material of Bidirectional temperature-controlling, preparation method and its usage |
| CN110172332A (en) * | 2019-04-25 | 2019-08-27 | 武汉理工大学 | A kind of NaNO of high specific heat capacity3Phase-change heat-storage material and preparation method thereof |
| CN110172332B (en) * | 2019-04-25 | 2020-11-17 | 武汉理工大学 | NaNO with high specific heat capacity3Phase-change heat storage material and preparation method thereof |
| CN110257020A (en) * | 2019-06-28 | 2019-09-20 | 深圳市爱能森科技有限公司 | A kind of phase-changing energy storage material and preparation method thereof with two-phase changing temperature degree |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102732227A (en) | Cryogenic cold storage material composition | |
| CN102775967A (en) | Low-temperature cold-storage material combination | |
| CN107189765A (en) | A kind of deepfreeze hydrous salt phase change material and its preparation method and application | |
| CN104830283B (en) | Low temperature phase change cold storage material and preparation method thereof | |
| CN106590538B (en) | Latent heat cold storage material | |
| CN202734633U (en) | Hybrid refrigeration system | |
| CN106566480A (en) | Inorganic-salt efficient coolant for refrigerated products | |
| CN101698792A (en) | Fruit/vegetable fresh-keeping cold-storage agent | |
| CN109868115A (en) | A kind of fresh cold chain efficient cold-storage material and preparation method thereof | |
| CN102786912A (en) | -15 DEG C cold-storage material composition | |
| CN1298803C (en) | Attapulgite gel cold storage agent | |
| CN107722941A (en) | Low temperature phase change coolant and preparation method thereof | |
| CN102876300B (en) | A kind of -33 DEG C of storage cold material compositions | |
| CN107722940A (en) | Low temperature phase change coolant and preparation method thereof | |
| CN103773319A (en) | Method for preparing composite phase change coolant | |
| CN107722939A (en) | Low temperature phase change coolant and preparation method thereof | |
| US11130896B2 (en) | Heat-storage material and refrigerator and cooling container that include the heat-storage material | |
| CN102382630A (en) | Cold storage medium and preparation method thereof | |
| CN103013452B (en) | Low-temperature eutectic liquid and preparation method thereof | |
| CN102732226A (en) | Low-temperature inorganic energy-storage material composite | |
| CN206842120U (en) | A kind of refrigerated transport case for logistics transportation | |
| Li et al. | Novel phase change cold energy storage materials for refrigerated transportation of fruits | |
| Liu et al. | Preparation and stability analysis of glycine water-based phase change materials modified with potassium sorbate for cold chain logistics | |
| Xiaoyan et al. | Study of new cool storage materials for refrigerated vehicle in cold chain | |
| WO2010071324A3 (en) | Refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |