CN1710715A - Nano-microparticle radiating apparatus - Google Patents
Nano-microparticle radiating apparatus Download PDFInfo
- Publication number
- CN1710715A CN1710715A CN 200410059282 CN200410059282A CN1710715A CN 1710715 A CN1710715 A CN 1710715A CN 200410059282 CN200410059282 CN 200410059282 CN 200410059282 A CN200410059282 A CN 200410059282A CN 1710715 A CN1710715 A CN 1710715A
- Authority
- CN
- China
- Prior art keywords
- nanoparticle
- fluid
- heat
- heat radiation
- airtight container
- 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.)
- Granted
Links
Images
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Heat dispersion fluid is filled inside sealed container. The heat dispersion fluid is vaporized caused by heat so as to form heat dispersion principle of heat pipe. Multiple Nano fine particles are added and mixed to heat dispersion fluid. Since being small size, Nano fine particles can flow inside sealed container swimmingly and prevent resistance from bubbles on surface of the sealed container; or Nano fine particles disturb flow, destroys bubbles so as to reduce thermal resistance. In addition, air bubbles caused from heated surface of Nano fine particles increases disturbance of heat dispersion fluid so as to raise heat transfer efficiency.
Description
Technical field
The invention relates to the fluid that a kind of nanoparticle heat abstractor and heat abstractor are used, refer to a kind of heat abstractor that can increase heat pipe heat radiation efficient and suitable fluid thereof of being applicable to especially.
Background technology
General electronic products usually can produce the heat of degree varies in operation, radiator structure then is to guarantee above-mentioned electronic product Yin Wendu is too high not overheated and produce the main barrier that running is interrupted.
At present the radiator structure kind of using is numerous, and the heat pipe heat radiation mode of knowing, because the high and shared volume of efficient is little, it applies to many electronic components.Though yet heat pipe has good radiating efficiency, but still still have its potential shortcoming.
For example the heat radiation of heat pipe focuses on flowing to improve its hot transfer efficiency of its internal heat dissipating fluid, after not excessive heat pipe is heated, is very easy to produce bubble on the surface of its inside, when bubble is excessive, will increases the thermal resistance effect of heat pipe and lowers hot transfer efficiency.Moreover, if when filling out hybridization particle is arranged in the heat pipe, especially when its particle diameter is big, is subjected to stopping of bubble easily and can't flows, thereby influence hot transfer efficiency.
Summary of the invention
Main purpose of the present invention is a kind of nanoparticle heat abstractor to be provided, with by can smooth and easyly being flowed in the airtight container of heat transmission by small nanoparticle, can to improve hot transfer efficiency so that avoid stopping of airtight container blibbing.
Another object of the present invention provides a kind of nanoparticle heat abstractor, so that can be by the nanoparticle that flowed by disturbance to break up the bubble in the airtight container, so that reduce thermal resistance to improve hot transfer efficiency.
A further object of the present invention is that a kind of nanoparticle heat abstractor is being provided, so that can improve hot transfer efficiency with the disturbance that increases the heat radiation fluid by be subjected to thermogenetic bubble by nano-particle surface.
Another purpose of the present invention is that a kind of nanoparticle heat abstractor is being provided, so as can by by the use of nanoparticle increasing capillary force, and then improve hot transfer efficiency.
For reaching above-mentioned purpose, nanoparticle heat abstractor of the present invention is to comprise: an airtight container; And a heat radiation fluid, be to be filled in the sealing container, and in this heat radiation fluid, be mixed with a plurality of nanoparticles that wherein this nanoparticle can be mobile in the sealing container with this fluid that dispels the heat.
The present invention also provides a nano particle fluid that is used for heat abstractor, is to cooperate an airtight container, comprises: a fluid; And a plurality of nanoparticles, be to be distributed in this fluid; Wherein this nanoparticle can flow in the sealing container with this fluid that dispels the heat.
Airtight container of the present invention can be the container of a heat pipe or other identical heat radiation purposes, and heat radiation fluid of the present invention can be water, or the liquid of other heat radiation purposes.
Be mixed with a plurality of nanoparticles in the heat radiation fluid of the present invention, the concentration of its mixing does not have special restriction, is preferably between 0.001% to 10%.The present invention's nanoparticle of using in the fluid of dispelling the heat can be the good nanoparticle of any thermal conductivity, is preferably metal material or metal oxide nanoparticles, and the best is gold, silver, copper, platinum, aluminium, titanium dioxide, di-iron trioxide, carbon ball or the like.The particle diameter of nanoparticle can be any particle diameter of bubble blocks flow that is not in the heat radiation fluid of the present invention, is preferably between 1 nanometer to 500 nanometer.When nanoparticle flows with the heat radiation fluid in airtight container in the heat radiation fluid of the present invention, because its particle diameter is less, be between 1 nanometer to 500 nanometer, therefore each nanoparticle can flow in airtight container smoothly, when even the surface produces bubble because of being heated within the airtight container, nanoparticle also can be avoided being subjected to stopping of bubble, improves the overall thermal transfer efficiency relatively.In addition; when nanoparticle in airtight container with the heat radiation fluid when flowing; therefore nanoparticle can produce a disturbance speed; if the airtight container internal cause is heated when interior surface thereof produces bubble; also can be by breaking up above-mentioned bubble by the impact of nanoparticle; reducing thermal resistance effect, and promote whole hot transfer efficiency by this.Moreover, when nanoparticle itself is heated, also can produce bubble, so when nanoparticle flowed, the generation of above-mentioned bubble can help to increase the disturbance of heat radiation fluid, also can effectively promote hot transfer efficiency by this in the heat radiation fluid in its surface.When in airtight container, using nanoparticle again,, relatively also can promote hot transfer efficiency by increasing its capillary force by sneaking into of particle.
For nanoparticle of the present invention can effectively be operated, in airtight container, can add a dispersant in addition, be gathered into bulk by work in order to avoid nanoparticle by dispersant.Above-mentioned dispersant then can use general tetrem ammonia salt.
Description of drawings
Fig. 1 is the schematic diagram that the present invention is applied to heat pipe;
Fig. 2 is the fragmentary cross-sectional view of the heat pipe of Fig. 1;
Fig. 3 is the stereogram that the present invention is applied to the laser diode pedestal;
Fig. 4 is the base stereogram of the pedestal of Fig. 3.
Embodiment
For more understanding technology contents of the present invention, be described as follows especially exemplified by two preferred embodiment.
At first see also Fig. 1, it is the schematic diagram that the present invention is applied to general heat pipe, wherein show two airtight containers 1, that is the heat pipe in graphic, it is to be linked to respectively on a thermal source 6 and the fin 7, when airtight container 1 is heated near an end of thermal source 6, its inner fluid can evaporate by heat into gas, after this gas takes heat energy one end of fin 7 to and dispels the heat, gas originally can be condensed into liquid, this liquid so forms a heat radiation circulation by can be back to an end of thermal source 6 again by capillarity simultaneously, that is the radiating principle of general heat pipe.
Please consult Fig. 2 simultaneously, it is the generalized section of Fig. 1 retrieving portion, be filled with a heat radiation fluid 2 in above-mentioned airtight container 1 that is in the heat pipe, and the mixing adding has a plurality of nanoparticles 3 in heat radiation fluid 2, and this nanoparticle 3 can flow with heat radiation fluid 2 in airtight container 1.In present embodiment, employed heat radiation fluid 2 is meant water, and nanoparticle 3 to mix the concentration that adds heat radiation fluids 2 be 1%, and the material of nanoparticle 3 is to be gold, its average particle size is less than 17 nanometers.What this need be illustrated be, above-mentioned heat radiation fluid 2 is not limited in water, and the liquid of the identical heat radiation purposes of other tool also can use.In addition, the particle diameter of nanoparticle 3 can be between 1 nanometer to 500 nanometer, the material of nanoparticle 3 is preferably and is metal material simultaneously, and it can be silver, copper, platinum, aluminium, titanium dioxide, di-iron trioxide, carbon ball or the like, and is not limited only to the employed gold of present embodiment.Nanoparticle 3 is mixed the concentration that adds heat radiation fluid 2.
In addition, in present embodiment, add a dispersant (figure does not show) in addition in airtight container 1, this dispersant is meant a tetrem ammonia salt, and the nanoparticles 3 in the fluid 2 that its role is to prevent to dispel the heat are gathered into bulk mutually, makes nanoparticle 3 keep graininess and does not influence it and flow.
Therefore, by by the minimum nanoparticle 3 of particle diameter, it is flowed smoothly in airtight container 1, even when the inner surface of airtight container 1 produces bubble because of being heated, nanoparticle 3 also can be avoided being subjected to stopping of bubble, can improve the overall thermal transfer efficiency by this.In addition, when nanoparticle 3 in airtight container 1 with heat radiation fluid 2 when flowing, therefore nanoparticle 3 can produce a disturbance speed, if airtight container 1 internal cause is heated when interior surface thereof produces bubble, also can be by breaking up above-mentioned bubble by the impact of nanoparticle 3, can reduce thermal resistance effect by this, and promote whole hot transfer efficiency.Moreover, when nanoparticle 3 itself is heated, also can produce bubble, so when nanoparticle 3 flowed, the generation of above-mentioned bubble can help to increase the disturbance of heat radiation fluid, also can effectively promote hot transfer efficiency by this in heat radiation fluid 2 in its surface.When in airtight container 1, using nanoparticle 3 again,, relatively also can promote hot transfer efficiency by increasing its capillary force by sneaking into of particle.
See also Fig. 3 and Fig. 4 uses another embodiment of the present invention, wherein Fig. 3 shows the used pedestal of a laser diode 4, Fig. 4 then is its base 5, and in base 5, be formed with an annular recess 51, be formed with many straight flutes 52 simultaneously, when add a heat radiation fluid and nanoparticle of the present invention in annular recess 51 in after, and cover closed base 5 with a loam cake (figure does not show) and make it become an airtight container, then the formed heat abstractor of this airtight container also can be reached as above routine described every effect.Airtight container also of the present invention as can be known thus is not limited in heat pipe, and the airtight container with same use all can use, and the heat radiation fluid ccontaining mode also be not limited only to tubulose, also can as above-mentioned straight flute shape or other shape.In addition, when practical application, thermal source is not limited in the described position of present embodiment with respect to the position of airtight container of the present invention, that is thermal source can not only be limited in the center of airtight container, radiating end also not only is limited in the edge of airtight container, when thermal source is positioned at an end of airtight container, when radiating end is positioned at the other end of airtight container, also same attainable cost is invented described effect, for example is used in the heat pipe of central processing unit heat radiation etc.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (18)
1. nanoparticle heat abstractor is characterized in that: comprise:
One airtight container; And
One heat radiation fluid is to be filled in the sealing container, and is mixed with a plurality of nanoparticles in this heat radiation fluid;
Wherein this nanoparticle can flow in the sealing container with this fluid that dispels the heat.
2. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: this heat radiation fluid more includes a dispersant, is to mix to be filled in the sealing container, assembles to prevent this nanoparticle.
3. nanoparticle heat abstractor as claimed in claim 2 is characterized in that: this dispersant is a tetrem ammonia salt.
4. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: this nanoparticle is between 0.001% to 10% in this heat radiation concentration of fluid.
5. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: the particle diameter of this nanoparticle is between 1 nanometer to 500 nanometer.
6. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: this heat radiation fluid is a water.
7. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: this nanoparticle is a metal particle.
8. nanoparticle heat abstractor as claimed in claim 7 is characterized in that: this metal particle is gold.
9. nanoparticle heat abstractor as claimed in claim 1 is characterized in that: the sealing container is a heat pipe.
10. a nano particle fluid that is used for heat abstractor is to cooperate an airtight container, it is characterized in that comprising:
One fluid; And
A plurality of nanoparticles are to be distributed in this fluid;
Wherein this nanoparticle can flow in the sealing container with this fluid that dispels the heat.
11. nano particle fluid as claimed in claim 10 is characterized in that: include a dispersant, in this heat radiation fluid, assemble to prevent this nanoparticle.
12. nano particle fluid as claimed in claim 10 is characterized in that: this dispersant is a tetrem ammonia salt.
13. nano particle fluid as claimed in claim 10 is characterized in that: this nanoparticle is between 0.001% to 10% in this heat radiation concentration of fluid.
14. nano particle fluid as claimed in claim 10 is characterized in that: the particle diameter of this nanoparticle is between 1 nanometer to 500 nanometer.
15. nano particle fluid as claimed in claim 10 is characterized in that: this heat radiation fluid is a water.
16. nano particle fluid as claimed in claim 10 is characterized in that: this nanoparticle is a metal particle.
17. nano particle fluid as claimed in claim 10 is characterized in that: this metal particle is gold.
18. nano particle fluid as claimed in claim 10 is characterized in that: the sealing container is a heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100592829A CN100380645C (en) | 2004-06-16 | 2004-06-16 | Nano-microparticle radiating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100592829A CN100380645C (en) | 2004-06-16 | 2004-06-16 | Nano-microparticle radiating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710715A true CN1710715A (en) | 2005-12-21 |
| CN100380645C CN100380645C (en) | 2008-04-09 |
Family
ID=35706925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100592829A Expired - Fee Related CN100380645C (en) | 2004-06-16 | 2004-06-16 | Nano-microparticle radiating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100380645C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296099A (en) * | 2013-04-20 | 2015-01-21 | 大连三维传热技术有限公司 | Foam metal liquid absorption core hot plate heat radiator of silver nanometer liquid working media |
| CN104315487A (en) * | 2013-04-20 | 2015-01-28 | 大连三维传热技术有限公司 | Foam metal wick hot plate heat radiator of CuO nano working fluid |
| CN104315478A (en) * | 2013-04-20 | 2015-01-28 | 大连三维传热技术有限公司 | Foam metal wick hot plate heat radiator of Fe2O3 nano working fluid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115372C (en) * | 2000-06-15 | 2003-07-23 | 南京理工大学 | Nanometer fluid high-effective heat-conductive cooling working medium and its preparation method |
| CN1493841A (en) * | 2002-10-29 | 2004-05-05 | 上海理工大学 | Nano-fluid oscillating heat pipe |
| CN2656925Y (en) * | 2003-11-01 | 2004-11-17 | 鸿富锦精密工业（深圳）有限公司 | Hot pipe |
-
2004
- 2004-06-16 CN CNB2004100592829A patent/CN100380645C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296099A (en) * | 2013-04-20 | 2015-01-21 | 大连三维传热技术有限公司 | Foam metal liquid absorption core hot plate heat radiator of silver nanometer liquid working media |
| CN104315487A (en) * | 2013-04-20 | 2015-01-28 | 大连三维传热技术有限公司 | Foam metal wick hot plate heat radiator of CuO nano working fluid |
| CN104315478A (en) * | 2013-04-20 | 2015-01-28 | 大连三维传热技术有限公司 | Foam metal wick hot plate heat radiator of Fe2O3 nano working fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100380645C (en) | 2008-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sajid et al. | Recent advances in application of nanofluids in heat transfer devices: a critical review | |
| Sajid et al. | Thermal conductivity of hybrid nanofluids: a critical review | |
| Okonkwo et al. | An updated review of nanofluids in various heat transfer devices | |
| Khan et al. | Modeling and computational analysis of hybrid class nanomaterials subject to entropy generation | |
| Ahmed et al. | Improving car radiator performance by using TiO2-water nanofluid | |
| Ali et al. | Effect of channel angle of pin-fin heat sink on heat transfer performance using water based graphene nanoplatelets nanofluids | |
| Narankhishig et al. | Convective heat transfer characteristics of nanofluids including the magnetic effect on heat transfer enhancement-a review | |
| Subramanian et al. | Nanofluids and their engineering applications | |
| Wen et al. | Effective thermal conductivity of aqueous suspensions of carbon nanotubes (carbon nanotube nanofluids) | |
| Gupta et al. | A comprehensive review of experimental investigations of forced convective heat transfer characteristics for various nanofluids | |
| Witharana et al. | Stability of nanofluids in quiescent and shear flow fields | |
| Hosseinzadeh et al. | Investigation of micropolar hybrid nanofluid (iron oxide–molybdenum disulfide) flow across a sinusoidal cylinder in presence of magnetic field | |
| Menni et al. | Advances of nanofluids in heat exchangers—A review | |
| Leong et al. | Entropy generation analysis of nanofluids flow in various shapes of cross section ducts | |
| Yılmaz Aydın et al. | Nanofluids: preparation, stability, properties, and thermal performance in terms of thermo-hydraulic, thermodynamics and thermo-economic analysis | |
| Nabi et al. | Employing the (SWCNTs-MWCNTs)/H2O nanofluid and topology structures on the microchannel heatsink for energy storage: A thermal case study | |
| Mishra et al. | Effect of surface functionalization and physical properties of nanoinclusions on thermal conductivity enhancement in an organic phase change material | |
| Kamel et al. | Heat transfer enhancement using nanofluids: a review of the recent literature | |
| Saxena et al. | Nano coolants for automotive applications: a review | |
| Kumar et al. | An overview of recent advancements and applications of hybrid nanofluids | |
| Albert et al. | Review of stability enhanced nanofluids prepared by one-step methods—heat transfer mechanism and thermo-physical properties | |
| Ahmed et al. | Preparation, applications, stability and improved thermal characteristics of sonochemically synthesized nanosuspension using varying heat exchangers, a review | |
| CN1710715A (en) | Nano-microparticle radiating apparatus | |
| TW593954B (en) | Micro heat-pipe with nano-particle fluid | |
| Arya et al. | Cooling of High Heat Flux Flat Surface with Nanofluid Assisted Convective Loop. Experimental Assessment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 |