CN109152291A - A method of strengthening misting cooling heat exchange property - Google Patents
A method of strengthening misting cooling heat exchange property Download PDFInfo
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- CN109152291A CN109152291A CN201811038735.8A CN201811038735A CN109152291A CN 109152291 A CN109152291 A CN 109152291A CN 201811038735 A CN201811038735 A CN 201811038735A CN 109152291 A CN109152291 A CN 109152291A
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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Abstract
The invention discloses a kind of methods for strengthening misting cooling heat exchange property.It includes: to carry out misting cooling for the FS-31 aqueous solution of concentration 50-200ppm as misting cooling working medium；The CTAB aqueous solution of concentration 200ppm is mixed with the FS-31 aqueous solution of concentration 100ppm by 0:100%-50%:50%, or the AOS aqueous solution of concentration 300ppm is mixed with the FS-31 aqueous solution of concentration 100ppm by 0:100%-50%:50%, or mix the SDS aqueous solution of concentration 400ppm by 0:100%-50%:50% with the FS-31 aqueous solution of concentration 100ppm, the solution being configured to carries out misting cooling as misting cooling working medium.This method can improve the heat exchange property of misting cooling, improve the coefficient of heat transfer, reduce heat source surface temperature, save working medium, meet the needs of high heat flux density Electronic cooling.
Description
Technical field
The invention belongs to the heat exchange of high heat flux density misting cooling and its applied technical fields, are related to a kind of reinforcing misting cooling
The method of heat exchange property.
Background technique
Misting cooling has the heat dissipation potential for increasing substantially electronic component as a kind of novel cooling technology, at
For high heat flux density electrical cooling field one of the type of cooling of greatest concern.More, the machine in view of the influence factor of misting cooling
It manages also more complicated.In order to preferably play the application of misting cooling in practical projects, expanded at present to misting cooling work
Quality Research.
Whether misting cooling working medium will not only meet the premise of radiating requirements, it is also necessary to consider to have with electronic component compatible
Property, on environment whether there is or not influence, operation whether safety and cost etc..There are mainly two types of existing misting cooling working medium: Yi Zhongwei
Conductor (such as water, ethyl alcohol) needs to place one block of cold plate between working medium and electronic component at this time, prevents coolant from directly contacting
Electronic device；Another kind is insulator (such as FC class compound), and misting cooling working medium can be directly injected to electronics device at this time
Take away heat in part surface.Insulator higher cost, thermal conductivity, latent heat of vaporization etc. are well below conductor.And most of misting coolings
The deionized water (distilled water) that experimental study selects price more cheap is used as misting cooling working medium.Due to there is higher specific heat
Appearance, pyroconductivity and the latent heat of vaporization, keep distilled water no matter single-phase or two-phase, and misting cooling heat exchange all has good property
Can, so as to meet cooling requirements, and application is convenient, and cheap, no pollution to the environment is suitble to open circuit and closed circulation
Two kinds of experimental studies, the range of application are wider.In order to further improve the heat transfer effect of misting cooling, surface-active is introduced
Agent expands relevant research to using distilled water as in the misting cooling experimentation of misting cooling working medium.
Surfactant is such substance, i.e., microdose is added in a solvent can be greatly lowered solvent table
Face tension changes solution system interface state, while wet, infiltration, dispersion, bubble and increase-volume can be generated and other effects.Surface
Solution surface tension can be greatly lowered with extremely low concentration in activating agent, this performance is closely related with its molecular structure.
There is hydrophobic and hydrophilic two kinds of groups, such molecular structure, on the one hand, hydrophilic radical makes in the molecular structure of surfactant
Obtaining it has splendid compatibility with hydrone, to assign surfactant molecule water-soluble property；On the other hand, hydrophobic grouping
Then because it has the property fled from from water, thus can be from aqueous solution interior shifting to liquid surface.Surfactant molecule with
Hydrophilic group stays in inside aqueous solution, and towards the state of gas phase side, close-packed arrays occur hydrophobic group at monomolecular adsorption layer
It aligns.The reduction of surface tension can generate important influence to spray droplet size and solid-liquid contact angle.Surface tension is got over
Small, drop is more the smaller drop of diameter easily against the atomization of own face tension.The reduction of liquid-drop diameter is so that droplet density
Increase, so that more striking to high frequency time heat source surface generates more disturbances, promotes the heat exchange of misting cooling.Meanwhile solid-liquid
Contact angle reduces, and improves drop in the spreadability and wettability on surface.
Currently, have relevant research in terms of single surfactant SDS is applied to misting cooling, but by other classes
The surfactant and mixed surfactant of type are applied to misting cooling aspect, and but never someone studied.It is existing by surface
The correlative study that activating agent SDS introduces misting cooling system thinks that SDS, which is added, can promote misting cooling heat exchange efficiency, mainly
Due to changing the contact angle of liquid and hot surface, the contact area of liquid and hot surface is increased, meanwhile, atomized drop is in warm
Life span on surface is reduced；Further, since SDS has stronger foam performance, it is added into misting cooling system, meeting
Foam abundant is generated in hot surface, the disturbance in liquid film is greatly enhanced, strengthens the convection current of hot surface, thus improve spray
The cooling heat transfer effect of mist.But existing spray cooling, even if surfactant SDS is introduced misting cooling system,
The defects of low, working medium consumption that there are still cooling efficiencies is greatly, surface temperature uniformity is poor.
Summary of the invention
It is an object of the present invention to overcome the deficiencies of the prior art and provide it is a kind of by other types of surfactant and
Mixed surfactant exchanges heat applied to misting cooling, can improve the heat exchange property of misting cooling, improve the coefficient of heat transfer, reduces heat
Source surface temperature, the method for strengthening misting cooling heat exchange property for saving working medium.
The present invention proposes a kind of using Du Pont FS-31 nonionic surfactant and FS-31 and cation surface activating
Agent CTAB, anionic surfactant AOS and SDS mixed surfactant strengthen misting cooling as misting cooling working medium
The method of performance.
Before this, those skilled in the art not will recognize that using nonionic surfactant Du Pont FS-31 and be promoted
Misting cooling heat exchange efficiency, because according to existing research, everybody thinks misting cooling heat exchange efficiency to be promoted, need to select tool
There is stronger foam performance, system surface tension can be reduced, reduces the surfactant of solid-liquid contact angle, and Du Pont FS-31
Foam performance is bad, so everybody will not go to select it.But the present invention is sent out by a large amount of theory studies and experimental study
It is existing, Du Pont's FS-31 nonionic surfactant is added in misting cooling system, system surface can not only be greatly reduced
Power reduces solid-liquid contact angle, moreover, because Du Pont FS-31 has lower foam performance, and less foam will not be to heat transfer
Thermal resistance is formed, therefore the promotion of misting cooling heat exchange efficiency can be promoted instead, also, since FS-31 can be with any ionic
Surfactant is compatible, can all be stabilized in common, acid, saliferous and hard water environment, be applicable to various bodies
System；Furthermore, it is contemplated that Du Pont's FS-31 nonionic surfactant has the environmental pollution of minimum；Therefore, in the present invention most
The mixed surfactant for having selected Du Pont FS-31 and FS-31 to mix respectively with CTAB, AOS, SDS eventually is cold by spraying to be promoted
But heat exchange efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of method for strengthening misting cooling heat exchange property of the present invention is as follows: by nonionic surfactant Du Pont
It is 50ppm-200ppm that the concentration being configured in deionized water, which is added, by the concentration of 50ppm-200ppm in FS-31
FS-31 aqueous solution as misting cooling working medium, carry out misting cooling.
Further, the concentration being configured in deionized water is added by the concentration of 100ppm in Du Pont FS-31 is 100ppm
FS-31 aqueous solution as misting cooling working medium, carry out misting cooling.
Further, the FS-31 for being 50ppm-200ppm with concentration by the CTAB aqueous solution that concentration is 150ppm-250ppm
0:100%-50%:50% is mixed aqueous solution by volume, and the solution being configured to is sprayed as misting cooling working medium
It is cooling；Alternatively, by concentration be 200ppm-400ppm AOS aqueous solution and concentration be 50ppm-200ppm FS-31 aqueous solution by
Volume ratio 0:100%-50%:50% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium；Or
Person, by concentration be 300ppm-600ppm SDS aqueous solution and concentration be 50ppm-200ppm FS-31 aqueous solution by volume
0:100%-50%:50% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium.
Further, the FS-31 for being 50ppm-200ppm with concentration by the CTAB aqueous solution that concentration is 150ppm-250ppm
25%:75% is mixed aqueous solution by volume, and the solution being configured to carries out misting cooling as misting cooling working medium；Or
Person, by concentration be 200ppm-400ppm AOS aqueous solution and concentration be 50ppm-200ppm FS-31 aqueous solution by volume
25%:75% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium；Alternatively, being by concentration
The FS-31 aqueous solution that the SDS aqueous solution of 300ppm-600ppm and concentration are 50ppm-200ppm by volume 25%:75% into
Row mixing, the solution being configured to carry out misting cooling as misting cooling working medium.
Further, by concentration be 200ppm CTAB aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
It is mixed than 0:100%-50%:50%, the solution being configured to carries out misting cooling as misting cooling working medium.
Further, by concentration be 300ppm AOS aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
0:100%-50%:50% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium.
Further, by concentration be 400ppm SDS aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
0:100%-50%:50% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium.
Further, by concentration be 200ppm CTAB aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
It is mixed than 25%:75%, the solution being configured to carries out misting cooling as misting cooling working medium.
Further, by concentration be 300ppm AOS aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
25%:75% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium.
Further, by concentration be 400ppm SDS aqueous solution and concentration be 100ppm FS-31 aqueous solution by volume
25%:75% is mixed, and the solution being configured to carries out misting cooling as misting cooling working medium.
Beneficial effects of the present invention:
The present invention provides a kind of method for strengthening misting cooling heat exchange property, this method can overcome existing misting cooling
The defects of cooling efficiency present in technology is low, working medium consumption is big, surface temperature uniformity is poor.
Present invention firstly provides be used to be promoted misting cooling heat exchange effect for a kind of novel surfactant Du Pont FS-31
Rate, and carried out relevant experimental data verifying.Simultaneously on this basis, it is other that FS-31 and CTAB, AOS, SDS etc. have been carried out
The volume proportion of several different surfaces activating agents is tested, and has studied in detail Du Pont FS-31 and mixed surfactant for improving
The heat exchange property of misting cooling.
Du Pont's FS-31 surfactant is used to improve misting cooling heat exchange property in the present invention, expand it is a series of not
The heat exchange of misting cooling is influenced with concentration, has found optium concentration, and confirm and use single surface-active in the present invention
Agent Du Pont FS-31 uses single surfactant SDS than in the prior art, and the effect for promoting misting cooling heat exchange efficiency is good
Very much.Du Pont FS-31 is mixed with different surfaces activating agents such as CTAB, AOS, SDS in the present invention, has found optium concentration volume
Proportion, discovery CTAB and FS-31, AOS and FS-31, SDS and FS-31 improve spray in optium concentration volume proportion 25%:75%
The cooling heat transfer effect of mist is best.
It is proposed by the present invention with Du Pont FS-31 surfactant and FS-31 surfactant respectively with CTAB, AOS,
Combining to strengthen the method for misting cooling heat exchange property for the surfactants such as SDS, can preferably improve changing for misting cooling
Hot property improves the coefficient of heat transfer, reduces heat source surface temperature, saves working medium, meets the need of high heat flux density Electronic cooling
It asks.
Detailed description of the invention
Fig. 1 is the curve graph of the misting cooling coefficient of heat transfer in the present invention under different surfaces surfactant concentration；
Fig. 2 be in the present invention heat source surface mean temperature with the curve graph of the variation of mixed liquor volume ratio；
Fig. 3 be in the present invention misting cooling coefficient of heat transfer with the curve graph of the variation of mixed liquor volume ratio.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is further illustrated.
Embodiment
Present invention Du Pont's FS-31 surfactant and FS-31 respectively with the surfactants such as CTAB, AOS, SDS
The misting cooling experiment that combination carries out is as follows:
Misting cooling experiment, in the experimental bench based on misting cooling, that is, misting cooling experimental rig, (experimental rig is
Apply for a patent, patent No. CN201610404055.8) on carry out, experiment use vertical spray regime, mist flow 20-40ml/
min.Entire test device systematic is mainly made of four parts: feed flow and spraying system, simulation heat source system, data acquisition system
System and control circuit system.Before experiment starts, air-leakage test is carried out to system, guarantees that the air-tightness of system is good, so as to
Keep vacuum environment.During the experiment, Miniature diaphragm pump extracts cooling liquid out from water bath with thermostatic control, by temperature controller
Control nozzle entrance Temperature of Working is constant, removes the solid granule impurity in liquid using filter, prevents blocking electromagnetism
Valve and nozzle, highly pressurised liquid flow through flowmeter, reach miniature electromagnetic valve by stainless steel flexible hose, then be atomized into nozzle
Droplet is ejected into cooled surface and is cooled down, and the liquid working substance after carrying out heat exchange passes through the outlet opening of cavity bottom again
Into water bath with thermostatic control fluid reservoir, entire circulation is completed.A part of working medium evaporation becomes steam in cooling procedure, this some vapor meeting
The condenser coil for being distributed on cavity side and top is cooling, is condensed into after liquid and flows back to cryogenic thermostat water together with other working medium
Bath, continues to participate in circulation, not will cause waste.
Before experiment starts, surfactant is added in the deionized water of water bath with thermostatic control, successively carries out experimental study.
Firstly, carrying out the experimental study of single surfactant:
Several single surfactants are as follows: Du Pont FS-31 (FS-31 is a kind of fluorine-containing non-ionic fluorocarbon
Surfactant), CTAB (cetyl trimethylammonium bromide, cationic surfactant), AOS (α-sodium olefin sulfonate, yin from
Sub- surfactant), SDS (lauryl sodium sulfate, molecular formula CH3(CH2)11OSO3Na, anionic surfactant).
Experimental method is as follows: the deionized water of water bath with thermostatic control and certain single surfactant are matched according to various concentration
Than then being vibrated by supersonic oscillations instrument, dissolving surfactant sufficiently；Du Pont's FS-31 solution in water bath with thermostatic control
Concentration variation range be 10ppm-500ppm, the concentration variation range of the CTAB solution in water bath with thermostatic control is 50ppm-
350ppm, the concentration variation range of the AOS solution in water bath with thermostatic control are 100ppm-700ppm, the SDS solution in water bath with thermostatic control
Concentration variation range is 100ppm-1000ppm.Injection pressure is 700kpa, and the temperature setting of water bath with thermostatic control is 20 DEG C, cavity pressure
Power is maintained at 10kpa.Pressure change is monitored at any time using data collecting instrument, and is improved.After the system stabilizes, heating is opened
Device, setting heating power be 300W, respectively carry out surfactant concentration experiment, when data collecting instrument acquisition temperature stablize,
When fluctuation range is smaller, it is considered as the cooling effect that system has reached the maximum, and analyzed.
Experimental result and discovery (can be seen that from curve graph Fig. 1): (1) concentration of FS-31 in 50ppm-200ppm,
For the concentration of CTAB in 150ppm-250ppm, for the concentration of AOS in 200ppm-400ppm, the concentration of SDS is in 300ppm-
When 600ppm, the coefficient of heat transfer is larger, and the heat transfer effect of system is relatively preferable, that is, the effect for promoting misting cooling heat exchange is preferable.
(2) for the concentration of Du Pont FS-31 in 100ppm, for the concentration of CTAB in 200ppm, for the concentration of AOS in 300ppm, SDS's is dense
For degree in 400ppm, the coefficient of heat transfer is maximum, and the heat transfer effect of system is best, that is, the effect for promoting misting cooling heat exchange is best,
Thus to obtain: the optium concentration of Du Pont FS-31 is 100ppm, and the optium concentration of CTAB is 200ppm, and the optium concentration of AOS is
The optium concentration of 300ppm, SDS are 400ppm.(3) from Fig. 1 it is also seen that heat exchange system of the Du Pont FS-31 under optium concentration
Number, than the coefficient of heat transfer of the SDS under optium concentration, improves 21%, it can be seen that, under identical experiment condition, the present invention
It is middle to use single surfactant SDS than in the prior art using single surfactant Du Pont FS-31, it is promoted spraying
The effect of cooling heat transferring efficiency is more preferable (good very much).This is because Du Pont FS-31 is nonionic surfactant, it not only can be with
System surface tension is effectively reduced, reduces solid-liquid contact angle, moreover, because it is with lower foam performance, suitable dense
Under degree, the less foam generated will not form thermal resistance to heat transfer, therefore can promote misting cooling heat exchange efficiency instead
It is promoted.And SDS is added into misting cooling system since it is with stronger foam performance, can be generated in hot surface abundant
Foam, although these foams enhance the disturbance in liquid film, strengthen the convection current of hot surface, can promote heat transfer, still, excessively
Foam stronger thermal resistance can be also formed to heat transfer, will affect the promotion of misting cooling heat exchange efficiency instead.
Secondly, carrying out the experimental study of mixed surfactant:
Several mixed surfactants are as follows: CTAB is mixed with FS-31, AOS is mixed with FS-31, SDS is mixed with FS-31.
Experimental method: the experimentation of every kind of mixed surfactant experimental study is tested with every kind of single surfactant
The experimentation of research is identical.
In several single surfactants of the studies above, by under optium concentration FS-31 and SDS, FS-31 with
CTAB, FS-31 and AOS etc. carry out mixing research.It being respectively set and mixes two-by-two, volume ratio is respectively 0:100%, 25%:75%,
50%:50%, 75%:25%, 100%:0 carry out experimental study, that is: by concentration be 100ppm FS-31 aqueous solution with it is dense
Spend the SDS aqueous solution difference for being 400ppm 0:100%, 25%:75%, 50%:50%, 75%:25%, 100% by volume:
0 is mixed, by concentration be 100ppm FS-31 aqueous solution and concentration be 200ppm CTAB aqueous solution respectively by volume 0:
100%, 25%:75%, 50%:50%, 75%:25%, 100%:0 are mixed, and concentration is water-soluble for the FS-31 of 100ppm
The AOS aqueous solution that liquid and concentration are 300ppm respectively by volume 0:100%, 25%:75%, 50%:50%, 75%:25%,
100%:0 is mixed, and the solution being configured to carries out misting cooling experimental study as misting cooling working medium.Obtained experiment
Result curve figure is shown in Fig. 2, Fig. 3.
Experimental result and discovery (can be seen that from the curve graph of Fig. 2, Fig. 3): (1) as CTAB and FS-31, AOS and FS-
31, when SDS is mixed with FS-31 by the volume ratio of 0:100%-50%:50%, heat transfer coefficient is larger, heat source surface mean temperature
It is lower, that is, the effect for improving misting cooling heat exchange is preferable.(2) as CTAB and FS-31, AOS and FS-31, SDS and FS-31
When volume ratio is 25%:75%, heat transfer coefficient is maximum, and heat source surface mean temperature is minimum, that is, improves misting cooling heat exchange
Effect is best.(3) in the range of mixed volume ratio is 1:100%-50%:50%, the effect that CTAB is mixed with FS-31 is most
Good, effect that AOS is mixed with FS-3 is secondly, the effect that mixes with FS-31 of SDS is not so good.(4) it is all in mixed volume ratio
In the case where 25%:75%, CTAB mixes the effect for improving misting cooling heat exchange with the proportion of FS-31, than AOS's and FS-31
The effect that proportion mixing improves misting cooling heat exchange is good very much (coefficient of heat transfer improves 12%), and the proportion than SDS and FS-31 is mixed
The effect for closing raising misting cooling heat exchange is good more (coefficient of heat transfer improves 20%).It can be seen that using CTAB and FS-31 with
The mixed surfactants solutions of volume ratio 25%:75% mixing change when carrying out misting cooling experiment as misting cooling working medium
Hot coefficient is maximum, and heat source surface mean temperature is minimum, that is, the effect for improving misting cooling heat exchange is best.This is because CTAB
For cationic surfactant, FS-31 is nonionic surfactant, and non-ionic surface is added in cationic surfactant
Activating agent can be such that critical micelle concentration significantly reduces, and can produce positive additive synergism, so that heat transfer effect improves；Separately
Outside, due to the reduction of surface tension, the reduction of contact angle, drop can preferably soak hot surface, and drop is soon from hotlist
Face evaporation, leads to the promotion of heat exchange property.
In addition, the reality by the experimental result of mixed surfactant experimental study, with single surfactant experimental study
It tests result to compare, find: using single surfactant using suitable mixed surfactant ratio is matched, can more improve
Misting cooling heat transfer effect, and evaporation efficiency is more preferable, and heat transfer coefficient is bigger, and heat source surface temperature is lower.0 in Fig. 2, Fig. 3:
100% point is exactly using the experimental result of single surfactant FS-31, and the point of 25%:75% is the suitable mixing of proportion
The experimental result of surfactant, the latter are bigger than the former heat transfer coefficient, and heat source surface temperature is lower, improve misting cooling and change
The effect of heat is more preferable.
Claims (10)
1. a kind of method for strengthening misting cooling heat exchange property, which is characterized in that press nonionic surfactant Du Pont FS-31
The FS-31 aqueous solution that the concentration being configured in deionized water is 50ppm-200ppm is added as spray in the concentration of 50ppm-200ppm
Mist cools down working medium, carries out misting cooling.
2. strengthening the method for misting cooling heat exchange property as described in claim 1, which is characterized in that press Du Pont FS-31
FS-31 aqueous solution that the concentration being configured in deionized water is 100ppm is added as misting cooling working medium in the concentration of 100ppm,
Carry out misting cooling.
3. as described in claim 1 strengthen misting cooling heat exchange property method, which is characterized in that by concentration be 150ppm-
The FS-31 aqueous solution that the CTAB aqueous solution of 250ppm and concentration are 50ppm-200ppm 0:100%-50%:50% by volume
It is mixed, the solution being configured to carries out misting cooling as misting cooling working medium；Alternatively, being 200ppm-400ppm by concentration
AOS aqueous solution and concentration be 50ppm-200ppm FS-31 aqueous solution 0:100%-50%:50% is mixed by volume
It closes, the solution being configured to carries out misting cooling as misting cooling working medium；Alternatively, the SDS for being 300ppm-600ppm by concentration
0:100%-50%:50% is mixed the FS-31 aqueous solution that aqueous solution and concentration are 50ppm-200ppm by volume, is prepared
At solution as misting cooling working medium, carry out misting cooling.
4. as claimed in claim 3 strengthen misting cooling heat exchange property method, which is characterized in that by concentration be 150ppm-
25%:75% is mixed the FS-31 aqueous solution that the CTAB aqueous solution of 250ppm and concentration are 50ppm-200ppm by volume,
The solution being configured to carries out misting cooling as misting cooling working medium；Alternatively, the AOS that concentration is 200ppm-400ppm is water-soluble
25%:75% is mixed the FS-31 aqueous solution that liquid and concentration are 50ppm-200ppm by volume, the solution conduct being configured to
Misting cooling working medium carries out misting cooling；Alternatively, by concentration be 300ppm-600ppm SDS aqueous solution and concentration be 50ppm-
25%:75% is mixed the FS-31 aqueous solution of 200ppm by volume, the solution being configured to as misting cooling working medium, into
Row misting cooling.
5. strengthening the method for misting cooling heat exchange property as claimed in claim 3, which is characterized in that by concentration be 200ppm
0:100%-50%:50% is mixed the FS-31 aqueous solution that CTAB aqueous solution and concentration are 100ppm by volume, is configured to
Solution as misting cooling working medium, carry out misting cooling.
6. strengthening the method for misting cooling heat exchange property as claimed in claim 3, which is characterized in that by concentration be 300ppm
0:100%-50%:50% is mixed the FS-31 aqueous solution that AOS aqueous solution and concentration are 100ppm by volume, is configured to
Solution as misting cooling working medium, carry out misting cooling.
7. strengthening the method for misting cooling heat exchange property as claimed in claim 3, which is characterized in that by concentration be 400ppm
0:100%-50%:50% is mixed the FS-31 aqueous solution that SDS aqueous solution and concentration are 100ppm by volume, is configured to
Solution as misting cooling working medium, carry out misting cooling.
8. strengthening the method for misting cooling heat exchange property as claimed in claim 5, which is characterized in that by concentration be 200ppm
25%:75% is mixed the FS-31 aqueous solution that CTAB aqueous solution and concentration are 100ppm by volume, and the solution being configured to is made
For misting cooling working medium, misting cooling is carried out.
9. strengthening the method for misting cooling heat exchange property as claimed in claim 6, which is characterized in that by concentration be 300ppm
25%:75% is mixed the FS-31 aqueous solution that AOS aqueous solution and concentration are 100ppm by volume, and the solution being configured to is made
For misting cooling working medium, misting cooling is carried out.
10. as claimed in claim 7 strengthen misting cooling heat exchange property method, which is characterized in that by concentration be 400ppm
SDS aqueous solution and concentration be 100ppm FS-31 aqueous solution 25%:75% is mixed by volume, the solution being configured to
As misting cooling working medium, misting cooling is carried out.
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