CN107722940A - Low temperature phase change coolant and preparation method thereof - Google Patents
Low temperature phase change coolant and preparation method thereof Download PDFInfo
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- CN107722940A CN107722940A CN201610665323.1A CN201610665323A CN107722940A CN 107722940 A CN107722940 A CN 107722940A CN 201610665323 A CN201610665323 A CN 201610665323A CN 107722940 A CN107722940 A CN 107722940A
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- phase change
- low temperature
- water
- ammonium chloride
- silica flour
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- 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
- C09K5/066—Cooling mixtures; De-icing compositions
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- 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
This application discloses a kind of low temperature phase change coolant and preparation method thereof, the low temperature phase change coolant, by the material composition of following weight/mass percentage composition：Ammonium chloride 6~10%, sodium chloride 12~16%, sodium carboxymethylcellulose 0.5~2%, silica flour 0.1~0.5%, remaining is water.The preparation method of above-mentioned low temperature phase change coolant, comprises the following steps：(1) weighing ammonium chloride, sodium chloride, silica flour and sodium carboxymethylcellulose are standby, and water is contained with container；(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added to the water one by one, turn on agitator, make ammonium chloride, sodium chloride and sodium carboxymethylcellulose uniform dissolution and be dispersed in water；(3) silica flour is added, is stirred.The agent for storage of coldness phase transition temperature coordinates incubator, can meet less than 18 DEG C temperature requirements at 26 DEG C~21 DEG C；The low raw-material cost, it is safe and non-toxic；The agent for storage of coldness degree of supercooling is low, freezes efficiency high.
Description
Technical field
The present invention relates to Cool Storage Technology field, more particularly to a kind of low temperature phase change coolant and preparation method thereof.
Background technology
With the rise of net purchase food, agent for storage of coldness is widely used in temperature control packaging, Cold Chain Logistics.
Ice cream needs less than -18 DEG C environmental transits, can not thaw.Dry ice temperature control was used in the past, was limited by air transportation.
Land transportation can only be used, extends haulage time, corresponding dry ice amount increase, packing cost increase.
If with agent for storage of coldness control pack in temperature below -18 DEG C, with regard to that can solve the problems, such as ice cream air transportation, from
And reduce the logistics cost of ice cream.It is therefore necessary to develop a kind of low-temperature cold energy storage agent for meeting ice cream transport.
Low-temperature cold energy storage agent is mostly inorganic salt solution, when freezing, degree of supercooling be present.Temperature is needed to be down to agent for storage of coldness phase alternating temperature
It could start to crystallize below degree.For agent for storage of coldness used in ice cream, phase transition temperature is low, along with its degree of supercooling is big, sharp freezing
When have difficulties.
At present, ultralow temperature temperature control packaging mainly uses dry ice refrigeration.The problem of being primarily present：It is high using dry ice cost；Protect
Deposit difficulty；Dry ice air transportation is limited.It is big degree of supercooling to be present in similar low-temperature cold energy storage agent, the problem of freezing difficulty.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, it is expected to provide a kind of reduction agent for storage of coldness degree of supercooling, raising is freezed
The low temperature phase change coolant of efficiency.
It is a further object to provide a kind of preparation method of low temperature phase change coolant.
In order to achieve the above object, the present invention provides a kind of low temperature phase change coolant, by the thing of following weight/mass percentage composition
Matter forms：Ammonium chloride 6~10%, sodium chloride 12~16%, sodium carboxymethylcellulose 0.5~2%, silica flour 0.1~0.5%,
Remaining is water.
Preferably, a kind of low temperature phase change coolant, by the material composition of following weight/mass percentage composition：Ammonium chloride 7~9%,
Sodium chloride 13~15%, sodium carboxymethylcellulose 1.5-2%, silica flour 0.3~0.5%, remaining is water.
Preferably, a kind of low temperature phase change coolant, by the material composition of following weight/mass percentage composition：Ammonium chloride 8%, chlorination
Sodium 14%, sodium carboxymethylcellulose 2%, silica flour 0.4%, remaining is water.
Preferably, a kind of low temperature phase change coolant, by the material composition of following weight/mass percentage composition：Ammonium chloride 8%, chlorination
Sodium 15%, sodium carboxymethylcellulose 2%, silica flour 0.5%, remaining is water.
Preferably, a kind of low temperature phase change coolant, by the material composition of following weight/mass percentage composition：Ammonium chloride 10%, chlorine
Change sodium 13%, sodium carboxymethylcellulose 0.5%, silica flour 1%, remaining is water.
Preferably, the water is deionized water.
Preferably, the granularity of the silica flour is 800~2000 mesh.
The present invention also provides a kind of preparation method of above-mentioned low temperature phase change coolant, comprises the following steps：
(1) weighing ammonium chloride, sodium chloride, silica flour and sodium carboxymethylcellulose are standby, and water is contained with container；
(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added to the water one by one, turn on agitator, make ammonium chloride, chlorine
Change sodium and sodium carboxymethylcellulose uniform dissolution and be dispersed in water；
(3) silica flour is added, is stirred.
Preferably, the agitator is electric mixer, and the agitator stirs 20-40min under 200-300rpm.
Preferably, the agitator stirs 30min under 250rpm.
Compared with prior art, the invention has the advantages that：
1st, the agent for storage of coldness phase transition temperature coordinates incubator, can meet less than -18 DEG C temperature requirements at -26 DEG C~-21 DEG C；
2nd, the agent for storage of coldness raw material includes sodium chloride, ammonium chloride, silica, sodium carboxymethylcellulose and water, cost of material
It is cheap, it is safe and non-toxic；
3rd, the agent for storage of coldness latent heat of phase change is between 260~280KJ/Kg.
4th, the agent for storage of coldness degree of supercooling is low, freezes efficiency high.
5th, the granularity of silica flour is 800~2000 mesh.Under this granularity, silica flour is evenly distributed in agent for storage of coldness, no sedimentation,
Nucleating effect is obvious.
The agent for storage of coldness of the present invention can be used for the freezer storage of ice cream.
Embodiment
The application is described in further detail with reference to embodiment.It is understood that tool described herein
Body embodiment is used only for explaining related invention, rather than the restriction to the invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.The application is described in detail below in conjunction with embodiment.
Embodiment 1
Prepare raw material according to following masses percentage composition：
Ammonium chloride 8%, sodium chloride 15%, sodium carboxymethylcellulose 2%, silica flour 0.5%, remaining is deionized water；Stone
The granularity of English powder is 1400 mesh；
Preparation method：
(1) deionized water is contained with container；
(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added in deionized water one by one, open electric mixer,
30min is stirred under 250rpm, makes ammonium chloride, sodium chloride and sodium carboxymethylcellulose uniform dissolution and is dispersed in water；
(3) silica flour is added, stirs, produces low temperature phase change coolant, the low temperature phase change coolant latent heat of phase change
265kj/kg, -25.3 DEG C of phase transition temperature, 3 DEG C of degree of supercooling.
Embodiment 2
Prepare raw material according to following masses percentage composition：
Ammonium chloride 10%, sodium chloride 13%, sodium carboxymethylcellulose 1%, silica flour 0.5%, remaining is deionized water；Stone
The granularity of English powder is 800 mesh；
Preparation method：
(1) deionized water is contained with container；
(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added in deionized water one by one, open electric mixer,
40min is stirred at 200 rpm, is made ammonium chloride, sodium chloride and sodium carboxymethylcellulose uniform dissolution and is dispersed in water；
(3) silica flour is added, stirs, produces low temperature phase change coolant, the low temperature phase change coolant latent heat of phase change
270kj/kg, -21.3 DEG C of phase transition temperature, 3 DEG C of degree of supercooling.
Embodiment 3
Prepare raw material according to following masses percentage composition：
Ammonium chloride 8%, sodium chloride 14%, sodium carboxymethylcellulose 2%, silica flour 0.4%, remaining is deionized water；Stone
The granularity of English powder is 2000 mesh；
Preparation method：
(1) deionized water is contained with container；
(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added in deionized water one by one, open electric mixer,
20min is stirred at 300 rpm, is made ammonium chloride, sodium chloride and sodium carboxymethylcellulose uniform dissolution and is dispersed in water；
(3) silica flour is added, stirs, produces low temperature phase change coolant, the low temperature phase change coolant latent heat of phase change
275kj/kg, -25.1 DEG C of phase transition temperature, 3 DEG C of degree of supercooling.
Embodiment 4
Prepare raw material according to following masses percentage composition：
Ammonium chloride 6%, sodium chloride 16%, sodium carboxymethylcellulose 0.5%, silica flour 0.1%, remaining is deionized water；
The granularity of silica flour is 1900 mesh；
Preparation method is same as Example 1.
Embodiment 5
Prepare raw material according to following masses percentage composition：
Ammonium chloride 7%, sodium chloride 12%, sodium carboxymethylcellulose 1.5%, silica flour 0.3%, remaining is deionized water；
The granularity of silica flour is 1000 mesh；
Preparation method is same as Example 1.
Embodiment 6
Prepare raw material according to following masses percentage composition：
Ammonium chloride 9%, sodium chloride 12.5%, sodium carboxymethylcellulose 0.6%, silica flour 0.2%, remaining is deionization
Water；The granularity of silica flour is 1600 mesh；
Preparation method is same as Example 1.
The low-temperature cold energy storage agent of the present invention, has the characteristics that.
1st, phase transition temperature is low.Make agent for storage of coldness phase transition temperature below -18 DEG C, meet that the transport of the cryogenic products such as ice cream will
Ask；
2nd, latent heat of phase change is high.Latent heat of phase change is not less than 200KJ/Kg.
3rd, cost is low.As consumptive material, Unit Weight cost should not be greater than dry ice.
4th, degree of supercooling bottom.Degree of supercooling is not higher than 3 DEG C.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. a kind of low temperature phase change coolant, it is characterised in that by the material composition of following weight/mass percentage composition：Ammonium chloride 6~
10%, sodium chloride 12~16%, sodium carboxymethylcellulose 0.5~2%, silica flour 0.1~0.5%, remaining is water.
2. low temperature phase change coolant according to claim 1, it is characterised in that by the material group of following weight/mass percentage composition
Into：Ammonium chloride 7~9%, sodium chloride 13~15%, sodium carboxymethylcellulose 1.5-2%, silica flour 0.3~0.5%, remaining is
Water.
3. low temperature phase change coolant according to claim 2, it is characterised in that by the material group of following weight/mass percentage composition
Into：Ammonium chloride 8%, sodium chloride 14%, sodium carboxymethylcellulose 2%, silica flour 0.4%, remaining is water.
4. low temperature phase change coolant according to claim 1, it is characterised in that by the material group of following weight/mass percentage composition
Into：Ammonium chloride 8%, sodium chloride 15%, sodium carboxymethylcellulose 2%, silica flour 0.5%, remaining is water.
5. low temperature phase change coolant according to claim 1, it is characterised in that by the material group of following weight/mass percentage composition
Into：Ammonium chloride 10%, sodium chloride 13%, sodium carboxymethylcellulose 0.5%, silica flour 1%, remaining is water.
6. according to the low temperature phase change coolant described in claim any one of 1-5, it is characterised in that the water is deionized water.
7. according to the low temperature phase change coolant described in claim any one of 1-5, it is characterised in that the granularity of the silica flour is
800~2000 mesh.
8. the preparation method of the low temperature phase change coolant described in a kind of any one of claim 1-7, it is characterised in that including following
Step：
(1) weighing ammonium chloride, sodium chloride, silica flour and sodium carboxymethylcellulose are standby, and water is contained with container；
(2) ammonium chloride, sodium chloride and sodium carboxymethylcellulose are added to the water one by one, turn on agitator, make ammonium chloride, sodium chloride
With sodium carboxymethylcellulose uniform dissolution and be dispersed in water；
(3) silica flour is added, is stirred.
9. the preparation method of low temperature phase change coolant according to claim 8, it is characterised in that the agitator is electronic
Agitator, the agitator stir 20-40min under 200-300rpm.
10. the preparation method of low temperature phase change coolant according to claim 9, it is characterised in that the agitator exists
30min is stirred under 250rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610665323.1A CN107722940A (en) | 2016-08-11 | 2016-08-11 | Low temperature phase change coolant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610665323.1A CN107722940A (en) | 2016-08-11 | 2016-08-11 | Low temperature phase change coolant and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107722940A true CN107722940A (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610665323.1A Pending CN107722940A (en) | 2016-08-11 | 2016-08-11 | Low temperature phase change coolant and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868115A (en) * | 2019-03-12 | 2019-06-11 | 上海安鲜达物流科技有限公司 | A kind of fresh cold chain efficient cold-storage material and preparation method thereof |
| CN110117481A (en) * | 2019-04-28 | 2019-08-13 | 福建赛特冷链科技有限公司 | - 15 DEG C~-25 DEG C cold chain transportation phase change cold accumulating agents of one kind and preparation method thereof |
| CN110553443A (en) * | 2019-09-16 | 2019-12-10 | 上海惠洲实业有限公司 | Ice bag with freezing point of-25 DEG C |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533224A (en) * | 2010-12-28 | 2012-07-04 | 中国科学院广州能源研究所 | Low temperature phase change coolant |
| CN103242806A (en) * | 2013-05-08 | 2013-08-14 | 杭州鲁尔能源科技有限公司 | Inorganic salt phase-change cold accumulation material |
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2016
- 2016-08-11 CN CN201610665323.1A patent/CN107722940A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533224A (en) * | 2010-12-28 | 2012-07-04 | 中国科学院广州能源研究所 | Low temperature phase change coolant |
| CN103242806A (en) * | 2013-05-08 | 2013-08-14 | 杭州鲁尔能源科技有限公司 | Inorganic salt phase-change cold accumulation material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868115A (en) * | 2019-03-12 | 2019-06-11 | 上海安鲜达物流科技有限公司 | A kind of fresh cold chain efficient cold-storage material and preparation method thereof |
| CN110117481A (en) * | 2019-04-28 | 2019-08-13 | 福建赛特冷链科技有限公司 | - 15 DEG C~-25 DEG C cold chain transportation phase change cold accumulating agents of one kind and preparation method thereof |
| CN110553443A (en) * | 2019-09-16 | 2019-12-10 | 上海惠洲实业有限公司 | Ice bag with freezing point of-25 DEG C |
| 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 |
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Application publication date: 20180223 |
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