CN102533224B - Low temperature phase change coolant - Google Patents
Low temperature phase change coolant Download PDFInfo
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- CN102533224B CN102533224B CN201010609890.8A CN201010609890A CN102533224B CN 102533224 B CN102533224 B CN 102533224B CN 201010609890 A CN201010609890 A CN 201010609890A CN 102533224 B CN102533224 B CN 102533224B
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Abstract
The invention aims to provide phase change coolant which has large latent heat, small condensate depression, good heat conductivity and phase change temperature ranged from -20 DEG C to -25 DEG C and is specifically used for refrigeration equipment of low temperature refrigerators. The coolant is prepared by mixing and agitating sodium chloride aqueous solution which is taken as main materials and ammonium chloride, sodium carboxymethylcellulose and borax which are taken as auxiliary materials. The coolant is transparent or semi-transparent colloidal liquid at normal temperature and changes the phase at -20 DEG C to -25 DEG C to form white solid. The product has the advantages of low cost, simple process and non-toxicity and harmlessness and is substantially free from corrosion on metal equipment.
Description
Technical field
The present invention relates to air conditioner refrigerating Cool Storage Technology field, particularly a kind of phase change cold accumulating agent of low-temp. refrigerator special use.
Technical background
The modern times huge at resource consumption, the energy is day by day in short supply, use renewable energy source, make full use of existing resource, carry out low-carbon economy and be our current top priority.Phase change cold-storage is the important means that reduces electric load, concrete grammar is to freeze in the low power consumption period, make phase change material undergo phase transition cold-storage, in the peak of power consumption period, allow phase change material absorption refrigeration, to reduce refrigeration system in the power consumption consumption of crest segment, reach peak load shifting, reduce grid loss, improve electric energy efficiency.
Current low-temperature phase-change material has water, sal glauberi, ammonium chloride, Repone K etc., and transformation temperature, at-5～10 ℃, is mainly used in ice cold-storage unit, food transportation, and the low-temp. refrigerator phase-change material for cold storage of p-20～-25 ℃ does not also have report at present.
Summary of the invention
The object of the present invention is to provide that a kind of latent heat is large, condensate depression is little, conduct heat, transformation temperature is at-20～-25 ℃, specialty is for the phase change cold accumulating agent of the refrigeration equipment of low-temp. refrigerator.
Cold storage agent of the present invention be take sodium chloride aqueous solution as main material, and ammonium chloride, Xylo-Mucine, borax etc. are auxiliary material, through mix and blend, make.
Cold storage agent of the present invention is transparent or semitransparent gel liquid at normal temperatures, at-20～-25 ℃, undergoes phase transition, and becomes white solid.Its moiety is as follows according to mass percent:
Sodium-chlor 15～20%
Deionized water 71～76%
Ammonium chloride 3%
Sodium laurylsulfonate 1%
Borax 2%
Xylo-Mucine 3%
Described cold storage agent can be prepared by following steps:
1, the solid matter weighing in aforementioned formula is standby, clean container splendid attire for deionized water, starts agitator
2, solid ingredient is added in deionized water one by one, open electric mixer, under 250rpm, stir 30min, uniform dissolution and being scattered in water makes to prepare burden.
3, the material after stirring, after standing 12 hours, then stirs 15min.
Product of the present invention has that cost is low, technique is simple simultaneously, nontoxic, to advantages such as hardware no corrosions.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details.
The component concentration of each embodiment of table 1 (mass percent)
The formula of each embodiment in table 1 is prepared into low-temp. refrigerator phase change cold accumulating agent according to the following step:
1, the solid matter weighing in formula is standby, clean container splendid attire for deionized water, starts agitator;
2, solid ingredient is added in deionized water one by one, open electric mixer, under 250rpm, stir 30min, uniform dissolution and being scattered in water makes to prepare burden;
3, the material after stirring, after standing 12 hours, then stirs 15min.
After prepared by each embodiment, its performance parameter test the results are shown in Table 2
Each embodiment performance perameter of table 2
| Numbering | Transformation temperature (℃) | Latent heat of phase change (kJ/kg) | PH value | Density (kg/m 3) |
| Embodiment 1 | 20 | 270 | 8.0 | 1.14 |
| Embodiment 2 | 21 | 266 | 8.0 | 1.15 |
| Embodiment 3 | 23 | 260 | 8.0 | 1.17 |
| Embodiment 4 | 25 | 250 | 8.0 | 1.19 |
Claims (1)
1. a low temperature phase change phase change cold accumulating agent, is transparent or semitransparent gel liquid at normal temperatures, it is characterized in that, at-20～-25 ℃, undergoes phase transition, and becomes white solid; Its moiety is as follows by mass percentage:
Sodium-chlor 15～20%
Deionized water 71～76%
Ammonium chloride 3%
Sodium laurylsulfonate 1%
Borax 2%
Xylo-Mucine 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609890.8A CN102533224B (en) | 2010-12-28 | 2010-12-28 | Low temperature phase change coolant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609890.8A CN102533224B (en) | 2010-12-28 | 2010-12-28 | Low temperature phase change coolant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102533224A CN102533224A (en) | 2012-07-04 |
| CN102533224B true CN102533224B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010609890.8A Active CN102533224B (en) | 2010-12-28 | 2010-12-28 | Low temperature phase change coolant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433568A (en) * | 2016-11-25 | 2017-02-22 | 苏州安特实业有限公司 | Leak-proof gel low-temperature phase change material and preparation method thereof |
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| CN103265931B (en) * | 2013-05-02 | 2016-07-06 | 苏州安特实业有限公司 | A kind of phase transition temperature is the phase-change material of-25 DEG C |
| CN104232023A (en) * | 2013-06-20 | 2014-12-24 | 钟雪莲 | High-temperature warm ice synthetic material at ordinary pressure |
| CN103486793A (en) * | 2013-10-11 | 2014-01-01 | 崔德顺 | Production process of low temperature phase change cold accumulation ice box or ice bag |
| CN103756645B (en) * | 2014-01-24 | 2016-04-27 | 熊建平 | Cold-chain transportation phase change material and preparation method thereof |
| CN104606229B (en) * | 2014-12-30 | 2018-10-09 | 武汉中原瑞德生物制品有限责任公司 | Blood product produces the method for freezing of employment raw blood plasma |
| CN104861933A (en) * | 2015-05-26 | 2015-08-26 | 上海理工大学 | Low-supercooling-degree gel cold accumulation agent |
| CN106590538B (en) * | 2015-10-19 | 2021-06-18 | 松下知识产权经营株式会社 | Latent heat cold storage material |
| CN107722940A (en) * | 2016-08-11 | 2018-02-23 | 顺丰速运有限公司 | Low temperature phase change coolant and preparation method thereof |
| CN106433569A (en) * | 2016-09-20 | 2017-02-22 | 天津瀛德科技有限公司 | Cold storage agent |
| CN106433573A (en) * | 2016-09-20 | 2017-02-22 | 天津瀛德科技有限公司 | Low-temperature coolant |
| CN106433570A (en) * | 2016-09-20 | 2017-02-22 | 天津瀛德科技有限公司 | Iced-preservation coolant |
| CN106381131A (en) * | 2016-09-20 | 2017-02-08 | 天津瀛德科技有限公司 | Steady-state refrigerant |
| CN107011870A (en) * | 2017-04-20 | 2017-08-04 | 常州市鼎升环保科技有限公司 | A kind of preparation method of degradable biological matter agent for storage of coldness |
| CN109253510A (en) * | 2018-08-03 | 2019-01-22 | 西安交通大学 | A kind of air energy window air-cooler |
| CN111826130A (en) * | 2020-07-27 | 2020-10-27 | 安徽国微华芯环境科技有限公司 | Low-temperature phase-change cold-storage composite solvent, preparation method thereof and generating device |
| CN114316915A (en) * | 2021-12-13 | 2022-04-12 | 江苏金合能源科技有限公司 | High-latent-heat low-supercooling low-temperature inorganic phase change energy storage material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073613C (en) * | 1998-11-20 | 2001-10-24 | 商立军 | Phase-state changing endothermal cooling material composition and preparation method |
| CN1174074C (en) * | 2000-12-30 | 2004-11-03 | 广东科龙电器股份有限公司 | Cold accumulating agent |
| JP2004161885A (en) * | 2002-11-13 | 2004-06-10 | Idemitsu Technofine Co Ltd | Heat storage composition and its molded article |
| CN101418209A (en) * | 2008-11-21 | 2009-04-29 | 中国科学院广州能源研究所 | Inorganic combined phase-change material for heat storage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433568A (en) * | 2016-11-25 | 2017-02-22 | 苏州安特实业有限公司 | Leak-proof gel low-temperature phase change material and preparation method thereof |
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| CN102533224A (en) | 2012-07-04 |
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