CN107189763A - A kind of coolant and its application - Google Patents
A kind of coolant and its application Download PDFInfo
- Publication number
- CN107189763A CN107189763A CN201710505377.6A CN201710505377A CN107189763A CN 107189763 A CN107189763 A CN 107189763A CN 201710505377 A CN201710505377 A CN 201710505377A CN 107189763 A CN107189763 A CN 107189763A
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- parts
- coolant
- many carbon
- hexadecane
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of coolant and its application, the coolant includes the raw material of following parts by weight：Carbon atom number is between 12 19 in 100 200 parts of 10 15 parts of polyvinyl alcohol, 30 50 parts of emulsifying agent, 50 100 parts of many carbon saturated alkanes and distilled water, many carbon saturated alkanes.Using the present invention coolant as liquid-cooled suit cooling circulation liquid, with as follows a little：(1) material non-toxic is corrosion-free, steady chemical structure；(2) material price is cheap, and raw material sources are wide；(3) storage density of cold is big, and degree of supercooling very little, can solve the problem that liquid-cooled suit wears uncomfortable type problem.
Description
Technical field
The invention belongs to heat-transfer matcrial technical field, and in particular to a kind of coolant and its application.
Background technology
Existing liquid-cooled suit cooling medium is all various forms of coolants, common such as water, mixture of ice and water, vinyl
Mixed liquor and various freezing liquids that ethylene glycol is constituted with water etc..In order to improve radiating efficiency and effective working time,
Current essentially all of liquid-cooled suit is using the practice of reduction coolant temperature, and the temperature of coolant is usually zero degree or zero degree
Below.To improve heat conduction efficiency, the heat exchanging pipe net of liquid-cooled suit is typically to be close to skin or the frivolous fabric of phase alternating floor,
Under the coolant temperature of zero degree or lower, human skin temperature will be caused too low, worn uncomfortable；Too low skin temperature meeting
The heat transfer in bodily tissue is increased, the chatter of body tissue is caused, so as to cause the Human Physiology even sense of discomfort of psychology.
Phase-change material particulate and single-phase heat transfer the fluid mixing that potential heat functional thermal fluid is made up of distinct methods constitute solid
Liquid heterogeneous fluid, is divided into two kinds of phase-change emulsion and microcapsule phase-change emulsion.Compared with common single-phase heat transfer fluid, due to phase
Become in particles of material solid-liquid phase-change process and absorb or release latent heat, therefore in its phase transition temperature section, such multiphase fluid-mixing tool
There is very big apparent specific heat, and due to phase transformation particulate fluid flow and the influence of heat transfer, heat-transfer fluid and pipe can be significantly increased
Heat-transfer capability between road wall.Efficient heat transfer medium is can be used as, effective apparent specific heat and the heat transfer of fluid is increased substantially
Performance, is substantially reduced the size of heat exchanger and cold fluid and hot fluid conveyance conduit, reduces it and conveys power consumption, and so-called efficient heat energy is defeated
Medium is transported, fluid flow is greatly reduced and reduce.
At present, there is condensation water problems in most of liquid-cooled suits, and the presence of condensed water can not only influence the radiating of liquid-cooled suit to imitate
Rate, and greatly reduce the snugness of fit of liquid-cooled suit.How on the premise of liquid-cooled suit heat transfer efficiency is ensured, improve it and wear
Comfortableness, is the problem of our active demands are solved.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention provides a kind of cold
But liquid and its application, it is therefore an objective to the phenomenon being subcooled when avoiding liquid-cooled suit coolant from using.
To achieve these goals, the technical scheme taken of the present invention is：
A kind of coolant, includes the raw material of following parts by weight：
100-200 parts of 10-15 parts of polyvinyl alcohol, 30-50 parts of emulsifying agent, 50-100 parts of many carbon saturated alkanes and distilled water,
Carbon atom number is between 12-19 in many carbon saturated alkanes.
Many carbon saturated alkanes are just many carbon saturated alkanes.
The present invention also provides the preparation method that a kind of Phase cooling takes coolant, comprises the following steps：
(1) will heat melting polyvinyl alcohol 10-15 parts by weight and emulsifying agent 30-50 parts by weight be mixed into it is uniform to
System A；
(2) system B is obtained after mixing many carbon saturated alkane 50-100 parts by weight and distilled water 100-200 parts by weight；It is described
Carbon atom number is between 12-19 in many carbon saturated alkanes；
(3) A is added drop-wise in B, produced after agitated afterwards, emulsification.
The stirring is stirred using emulsification pretreatment machine.
The rotating speed of the stirring is 8500-9500rpm/min.High stir speed (S.S.), it is ensured that the particle diameter of phase-change emulsion is enough
It is small, it is to avoid emulsion droplet diameter is excessive, the phenomenon of easy blocking pipeline.
Many carbon saturated alkanes are just many carbon saturated alkanes of the carbon atom between 13-18.
The preparation method adds volume fraction 10-20% ethanol solution, ethanol before being additionally included in step (3) stirring
The addition of solution is the 1-5% of gross mass after system A and system B mixing.
Many carbon saturated alkanes are n-tetradecane and hexadecane, and the mass ratio of n-tetradecane and hexadecane is 1-3:
2-5.The coolant of preparation is phase-change emulsion, and both are mixed as phase-change material and by the preparation of the present invention using this ratio
Method prepares phase-change emulsion so that the emulsion finally given is than breast prepared by single use n-tetradecane or hexadecane
Shape liquid is when temperature is reduced, and emulsus fluid viscosity becomes big amplitude reduction, it is to avoid easily the phenomenon of blocking pipeline occur under lower temperature.
Many carbon saturated alkanes are hexadecane and n-octadecane, and the mass ratio of hexadecane and n-octadecane is 1-4:
3-5.The coolant of preparation is phase-change emulsion, and both are mixed as phase-change material and by the preparation of the present invention using this ratio
Method prepares phase-change emulsion so that the emulsion finally given is than breast prepared by single use hexadecane or n-octadecane
Shape liquid is when temperature is reduced, and emulsus fluid viscosity becomes big amplitude reduction, it is to avoid easily the phenomenon of blocking pipeline occur under lower temperature.
Many carbon saturated alkanes are n-tetradecane, hexadecane and n-octadecane, n-tetradecane, hexadecane and positive ten
The mass ratio of eight alkane is 1-3:2-4:2-5.The coolant of preparation is phase-change emulsion, and three is used as phase transformation using the mixing of this ratio
Material simultaneously prepares phase-change emulsion by the preparation method of the present invention so that the emulsion finally given uses positive 14 than single
Emulsion prepared by alkane, hexadecane or n-octadecane is when temperature is reduced, and emulsus fluid viscosity becomes big amplitude reduction, it is to avoid compared with
Easily there is the phenomenon of blocking pipeline under low temperature.And its phase-change emulsion prepared is prepared than both any of which combination of materials
Phase-change emulsion heat-transfer capability it is stronger, under identical heat exchange amount pump consumption it is smaller.
The emulsifying agent is TA-20 emulsifying agents and/or TX-4 emulsifying agents.
The mass ratio of the TA-20 emulsifying agents and TX-4 emulsifying agents is 10:1.Mixed using two kinds of emulsifying agents of this ratio,
The emulsification times for preparing final phase-change emulsion can be reduced by enabling to the homogeneous system of itself and polyvinyl alcohol formation, and be made
Obtain the phase-change emulsion stability finally obtained more preferable.
Using application of the coolant as heat-transfer fluid in liquid-cooled suit.
The mass percent of coolant is 10-25% in the heat-transfer fluid.The coolant for adding this mass percent is made
It is heat-transfer fluid in liquid-cooled suit in use, while ensure that heat transfer efficiency so that fluid viscosity is relatively small, reduces pump
Consumption.
Polyvinyl alcohol should use pharmaceutical grade Polyethylene alcohol, and it disagrees chemical industry rank polyvinyl alcohol, and it belongs to safe height
Molecular material, it is nontoxic to human body, have no side effect, with good biocompatibility.
Beneficial effects of the present invention：Using the present invention coolant as liquid-cooled suit cooling circulation liquid, with having as follows
Point：(1) material non-toxic is corrosion-free, steady chemical structure；(2) material price is cheap, and raw material sources are wide；(3) storage density of cold is big, mistake
Cold degree very little, can solve the problem that liquid-cooled suit wears uncomfortable type problem；(4) conductivity of heat is strong, far superior to monophasic fluid water.Use it
It is smaller than the flow needed for individual event fluid water as heat transfer medium, the chi of refrigerating plant and heat exchanger tube road network in liquid-cooled suit can be reduced
It is very little.The coolant of the present invention has the technical advantage and price advantage that other coolants do not possess at present, is to substitute tradition cooling
The optimal selection of liquid.
Embodiment
Below by the description to embodiment, the embodiment to the present invention is described in further detail, purpose
Be to aid in those skilled in the art has more complete, accurate and deep understanding, and helps to design of the invention, technical scheme
In its implementation.
The present invention provides a kind of coolant, includes the raw material of following parts by weight：
100-200 parts of 10-15 parts of polyvinyl alcohol, 30-50 parts of emulsifying agent, 50-100 parts of many carbon saturated alkanes and distilled water,
Carbon atom number is between 12-19 in many carbon saturated alkanes.Many carbon saturated alkanes are preferably just many carbon saturated alkanes.Many carbon saturations
Carbon atom number is preferably between 14-18 in alkane.
It is described in detail below by preferred embodiment：
Embodiment 1
A kind of coolant, includes the raw material of following parts by weight：
1 part of ethanol solution, 30 parts of TA-20 emulsifying agents, n-tetradecane 25 that 10 parts of polyvinyl alcohol, volume fraction are 15%
120 parts of part, 50 parts of hexadecane and distilled water.
The preparation method of the coolant comprises the following steps：
(1) it is in molten condition by polyvinyl alcohol heating, then takes polyvinyl alcohol and TA-20 after the heating melting of 10 parts by weight
The parts by weight of emulsifying agent 30 are added in glass container, and magnetic agitation is into homogeneous system A；
(2) parts by weight of n-tetradecane 25, the parts by weight of hexadecane 50 and the parts by weight of distilled water 120 are added into another glass to hold
It is stirring while adding in device, obtain system B；
(3) A is slowly added drop-wise in B, after completion of dropping, adds the parts by weight of ethanol solution 1 that volume fraction is 15%,
Stirred with high-shear emulsion machine, speed of agitator is 8500rpm/min, the phase of excellent in stability can be obtained after persistently emulsifying 1.5h
Become emulsion.
Embodiment 2
A kind of coolant, includes the raw material of following parts by weight：
1.8 parts of ethanol solution, 30 parts of TA-20 emulsifying agents, TX-4 emulsifying agents that 15 parts of polyvinyl alcohol, volume fraction are 15%
180 parts of 3 parts, 25 parts of hexadecane, 75 parts of n-octadecane and distilled water.
The preparation method of the coolant comprises the following steps：
(1) it is in molten condition by polyvinyl alcohol heating, then takes polyvinyl alcohol, TA-20 after the heating melting of 15 parts by weight
In 3 parts of addition glass containers of the parts by weight of emulsifying agent 30 and TX-4 emulsifying agents weight, magnetic agitation is into homogeneous system A；
(2) parts by weight of hexadecane 25, the parts by weight of n-octadecane 75 and the parts by weight of distilled water 180 are added into another glass to hold
It is stirring while adding in device, obtain system B；
(3) A is slowly added drop-wise in B, after completion of dropping, adds the weight of ethanol solution 1.8 that volume fraction is 15%
Part, stirred with high-shear emulsion machine, rotating speed is 9200rpm/min, excellent in stability can be obtained after persistently emulsifying 1.5-2h
Phase-change emulsion.
Embodiment 3
A kind of coolant, includes the raw material of following parts by weight：
1.5 parts of ethanol solution, 40 parts of TA-20 emulsifying agents, TX-4 emulsifying agents that 15 parts of polyvinyl alcohol, volume fraction are 15%
200 parts of 4 parts, 20 parts of n-tetradecane, 50 parts of hexadecane, 50 parts of n-octadecane and distilled water.
The preparation method of the coolant comprises the following steps：
(1) it is in molten condition by polyvinyl alcohol heating, then takes polyvinyl alcohol, TA-20 after the heating melting of 15 parts by weight
In 4 parts of addition glass containers of the parts by weight of emulsifying agent 40 and TX-4 emulsifying agents, magnetic agitation is into homogeneous system A；
(2) by the parts by weight of n-tetradecane 20, the parts by weight of hexadecane 50, the parts by weight of n-octadecane 50 and the weight of distilled water 200
Part is measured to add in another glass container, it is stirring while adding, obtain system B；
(3) A is slowly added drop-wise in B, after completion of dropping, adds the weight of ethanol solution 1.5 that volume fraction is 15%
Part, stirred with high-shear emulsion machine, rotating speed is 9500rpm/min, the phase transformation of excellent in stability can be obtained after persistently emulsifying 1h
Emulsion.
Embodiment 4
The present embodiment and the difference of embodiment 1 are that n-tetradecane is 8 parts by weight, positive 16 in the raw material of coolant
Alkane is 40 parts by weight.
Embodiment 5
The present embodiment and the difference of embodiment 2 are that hexadecane is 10 parts by weight, positive 18 in the raw material of coolant
Alkane is 50 parts by weight.
Embodiment 6
The present embodiment and the difference of embodiment 3 be, the parts by weight of n-tetradecane 21, hexadecane in the raw material of coolant
28 parts by weight and the parts by weight of n-octadecane 35.
Embodiment 7
The present embodiment and the difference of embodiment 1 are, hexadecane is not used in the raw material of coolant, only with positive ten
Four alkane, n-tetradecane is 50 parts by weight.
Embodiment 8
The present embodiment and the difference of embodiment 1 are, n-tetradecane is not used in the raw material of coolant, only with positive ten
Six alkane, hexadecane is 50 parts by weight.
Embodiment 9
The present embodiment and the difference of embodiment 2 are, hexadecane is not used in the raw material of coolant, only with positive ten
Eight alkane, n-octadecane is 50 parts by weight.
Under conditions of temperature is 25 DEG C, phase-change emulsion prepared by the present invention is mixed with water, and is to mass fraction
10%th, the viscosity (/mPaS) of phase-change emulsion prepared by 20%, 25% embodiment 1 to 9 is tested, and test result is such as
Shown in table 1 below.
| Mass fraction is 10% | Mass fraction is 20% | Mass fraction is 25% | |
| Embodiment 1 | 23.38 | 92.40 | 113.15 |
| Embodiment 2 | 28.36 | 85.58 | 110.36 |
| Embodiment 3 | 23.58 | 93.20 | 112.23 |
| Embodiment 4 | 23.68 | 93.21 | 112.17 |
| Embodiment 5 | 28.12 | 86.10 | 110.96 |
| Embodiment 6 | 24.32 | 92.15 | 111.85 |
| Embodiment 7 | 24.10 | 97.85 | 120.30 |
| Embodiment 8 | 36.25 | 90.60 | 115.20 |
| Embodiment 9 | 26.12 | 96.80 | 119.52 |
As can be seen from the above table, the coolant (phase-change emulsion) that prepared by 1-6 of the embodiment of the present invention is with respect to embodiment 7-9 systems
Standby cooling fluid viscosity is relatively smaller, and flow regime is relatively more preferable.The coolant of liquid-cooled suit is may be used as, because viscosity is relative
It is smaller, it is not easily blocked the pipeline of liquid-cooled suit.Coolant prepared by embodiment 1-6 is compared with conventional fluid water, and its heat-transfer capability can
5-6 times of increase.The heat-transfer capability of coolant prepared by embodiment 7-9 can increase 2-4 times.
Coolant prepared by embodiment 1-6 centrifuges 1h, without obvious lamination under the conditions of rotating speed 3200r/min.It is real
A phase-change emulsion for 7-9 preparations is applied under the conditions of rotating speed 3000r/min, 1h is centrifuged, without obvious lamination.
The present invention is exemplarily described above.Obviously, the present invention, which is implemented, is not subject to the restrictions described above.
As long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or it is not improved, will
The above-mentioned design and technical scheme of the present invention directly applies to other occasions, within protection scope of the present invention.
Claims (10)
1. a kind of coolant, includes the raw material of following parts by weight：
100-200 parts of 10-15 parts of polyvinyl alcohol, 30-50 parts of emulsifying agent, 50-100 parts of many carbon saturated alkanes and distilled water, it is described
Carbon atom number is between 12-19 in many carbon saturated alkanes.
2. coolant according to claim 1, it is characterised in that many carbon saturated alkanes are just many carbon saturated alkanes.
3. coolant according to claim 2, it is characterised in that the raw material includes the ethanol that volume fraction is 10-20%
Solution, volume fraction is that the addition of 10-20% ethanol solution is the 1-5% of gross mass after raw material mixing.
4. coolant according to claim 3, it is characterised in that many carbon saturated alkanes are n-tetradecane and positive 16
The mass ratio of alkane, n-tetradecane and hexadecane is 1-3:2-5.
5. coolant according to claim 3, it is characterised in that many carbon saturated alkanes are hexadecane and positive 18
The mass ratio of alkane, hexadecane and n-octadecane is 1-4:3-5.
6. coolant according to claim 3, it is characterised in that many carbon saturated alkanes are n-tetradecane, hexadecane
And n-octadecane, the mass ratio of n-tetradecane, hexadecane and n-octadecane is 1-3:2-4:2-5.
7. coolant according to claim 1, it is characterised in that the emulsifying agent is that TA-20 emulsifying agents and/or TX-4 are emulsified
Agent.
8. coolant according to claim 7, it is characterised in that the mass ratio of the TA-20 emulsifying agents and TX-4 emulsifying agents
For 10:1.
9. using application of any one of the claim 1-8 coolant as heat-transfer fluid in liquid-cooled suit.
10. apply according to claim 9, it is characterised in that the mass percent of coolant is 10- in the heat-transfer fluid
25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505377.6A CN107189763A (en) | 2017-06-28 | 2017-06-28 | A kind of coolant and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505377.6A CN107189763A (en) | 2017-06-28 | 2017-06-28 | A kind of coolant and its application |
Publications (1)
| Publication Number | Publication Date |
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| CN107189763A true CN107189763A (en) | 2017-09-22 |
Family
ID=59880652
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710505377.6A Pending CN107189763A (en) | 2017-06-28 | 2017-06-28 | A kind of coolant and its application |
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| US20080166555A1 (en) * | 2005-01-18 | 2008-07-10 | Basf Aktiengesellschaft | Coarse-Particle Microcapsule Preparation |
| CN100447208C (en) * | 2006-09-28 | 2008-12-31 | 成都新柯力化工科技有限公司 | Energy-saving building coating and preparation method |
| WO2013179653A1 (en) * | 2012-05-30 | 2013-12-05 | Ｊｘ日鉱日石エネルギー株式会社 | Paraffin-based latent heat storing material composition and use thereof |
| WO2014056963A1 (en) * | 2012-10-09 | 2014-04-17 | Wacker Chemie Ag | Sheetlike structure or shaped article comprising latent heat storage media |
| CN103937461A (en) * | 2014-04-29 | 2014-07-23 | 华南理工大学 | Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof |
| CN103555281B (en) * | 2013-10-24 | 2016-02-03 | 天津工业大学 | A kind of building film material energy-saving and temperature-regulating microcapsule and preparation method thereof |
-
2017
- 2017-06-28 CN CN201710505377.6A patent/CN107189763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080166555A1 (en) * | 2005-01-18 | 2008-07-10 | Basf Aktiengesellschaft | Coarse-Particle Microcapsule Preparation |
| CN100447208C (en) * | 2006-09-28 | 2008-12-31 | 成都新柯力化工科技有限公司 | Energy-saving building coating and preparation method |
| WO2013179653A1 (en) * | 2012-05-30 | 2013-12-05 | Ｊｘ日鉱日石エネルギー株式会社 | Paraffin-based latent heat storing material composition and use thereof |
| WO2014056963A1 (en) * | 2012-10-09 | 2014-04-17 | Wacker Chemie Ag | Sheetlike structure or shaped article comprising latent heat storage media |
| CN103555281B (en) * | 2013-10-24 | 2016-02-03 | 天津工业大学 | A kind of building film material energy-saving and temperature-regulating microcapsule and preparation method thereof |
| CN103937461A (en) * | 2014-04-29 | 2014-07-23 | 华南理工大学 | Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof |
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Application publication date: 20170922 |