CN108418545A - A kind of micro jet flow coldplate and its manufacturing method that porous heating surface is added - Google Patents
A kind of micro jet flow coldplate and its manufacturing method that porous heating surface is added Download PDFInfo
- Publication number
- CN108418545A CN108418545A CN201810403948.XA CN201810403948A CN108418545A CN 108418545 A CN108418545 A CN 108418545A CN 201810403948 A CN201810403948 A CN 201810403948A CN 108418545 A CN108418545 A CN 108418545A
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- China
- Prior art keywords
- micro
- channel
- jet flow
- micro jet
- liquid outlet
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000002826 coolant Substances 0.000 claims abstract description 22
- 239000000110 cooling liquid Substances 0.000 claims abstract description 22
- 230000005661 hydrophobic surface Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000005234 chemical deposition Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000009833 condensation Methods 0.000 abstract description 10
- 230000005494 condensation Effects 0.000 abstract description 10
- 238000010248 power generation Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 12
- 238000009835 boiling Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of micro jet flow coldplates that porous heating surface is added, the rectangle working face of the micro jet flow coldplate is centrally located by the porous super-hydrophilic surface structure being made of several equally distributed apertures, two cooling liquid outlet channels are arranged in parallel at two relative edges of the working face, the coolant liquid collection channel that both ends are connected to the cooling liquid outlet channel is arranged in parallel at the another two relative edge of the working face, the porous super-hydrophilic surface structure and the cooling liquid outlet channel, several micro-channels are uniformly provided with and communicated between coolant liquid collection channel.The invention also discloses a kind of manufacturing methods for the micro jet flow coldplate that porous heating surface is added.The present invention can reduce the thermal resistance on channel surface, increase phase-change heat transfer efficiency, and it is excessively high and the problems such as be unevenly distributed effectively to solve to improve Condensation photovoltaic battery local temperature, to improve cell power generation efficiency.
Description
Technical field
The present invention relates to Condensation photovoltaic battery plate cooling technology fields, and in particular to a kind of that the micro- of porous heating surface is added
Injection stream coldplate and its manufacturing method.
Technical background
Third-generation technology of the Photospot solar technology as solar power generation future developing trend, with the electricity of unit area
The heat that the increase of pond plate radiation light intensity absorbs also increases, and the temperature control of battery and heat dissipation problem are also more prominent.Traditional
Heat exchange cooling device is mostly contacted by heat exchange material with heat source component, and heat is taken away using circulatory mediator, is difficult to realize instantaneous cooling
The effect being evenly distributed with battery temperature.In this context, excessively high and be unevenly distributed for Condensation photovoltaic battery local temperature
The problems such as even, needs to propose a kind of new radiating, it is intended to quickly reduce photovoltaic battery temperature, make its heat flux distribution more
To be uniform, and then power conversion efficiency (pce) is improved, increases the service life of battery.
Invention content
In view of the above technical problems, the present invention is intended to provide it is a kind of it is simple in structure, can realize efficiently and Homogeneouslly-radiating,
The micro jet flow coldplate and its manufacturing method of porous heating surface is added.
The invention is realized by the following technical scheme：
A kind of micro jet flow coldplate that porous heating surface is added, the rectangle working face of the micro jet flow coldplate are set between two parties
It is equipped with the porous super-hydrophilic surface structure being made of several equally distributed apertures, it is parallel at two relative edges of the working face to set
Two cooling liquid outlet channels are equipped with, the both ends connection coolant liquid is arranged in parallel at the another two relative edge of the working face and is gone out
The coolant liquid collection channel in mouth channel, the porous super-hydrophilic surface structure are collected with the cooling liquid outlet channel, coolant liquid
Several micro-channels are uniformly provided with and communicated between channel.
Further, the aperture of the porous super-hydrophilic surface structure is uniformly distributed by matrix.
Further, the spacing distance of the aperture is 0.1mm ~ 0.5mm.
Further, the radius of the aperture is 0.04mm ~ 0.06mm, hole depth 0.08-0.11mm.
Further, the cross sectional shape of the micro-channel is rectangle.
Further, the sectional dimension of the micro-channel is 0.5mm × 0.5mm.
Further, the bottom surface of the micro-channel is hydrophobic surface.
Further, the contact angle of the hydrophobic surface is 120 degree ~ 180 degree.
A kind of manufacturing method of such as micro jet flow coldplate, including step：
1）The cooling liquid outlet channel, coolant liquid collection channel and micro-channel are processed in smooth metal substrate surface；
2）Porous super-hydrophilic surface structure is prepared in metal substrate intermediate region using the method for particle sintering；
3）Hydrophobic surface processing is carried out to the micro-channel bottom surface using chemical deposition.
Further, the step 1）The machining process that extruding is cut by plough is processed in smooth metal substrate surface
The cooling liquid outlet channel, coolant liquid collection channel and micro-channel.
Compared with prior art, the present invention is based on activation cores to play boiling principle, and being added in impinging jet planar range has
The porous super-hydrophilic surface structure in fixed nucleus of boiling hole, void structure can increase bubble departure frequency, super hydrophilic table
Face promotes being replenished in time for boiling bubble departure liquid phase, realizes and exchanges heat to the moment of localized hyperthermia, while uniformly being set around it
The hydrophobic surface micro-channel set can reduce the thermal resistance on channel surface, increase phase-change heat transfer efficiency, effectively solve condensation photovoltaic electricity
The problems such as local temperature is excessively high among pond and is unevenly distributed, to improve cell power generation efficiency.
Description of the drawings
Fig. 1 is the micro jet flow cooling system work flow diagram of the porous heating surface of addition of the embodiment of the present invention.
Fig. 2 is the micro jet flow coldplate schematic front view of the porous heating surface of addition of the embodiment of the present invention.
Fig. 3 is the stereoscopic schematic diagram of the micro jet flow coldplate of the porous heating surface of addition of the embodiment of the present invention.
In figure：1- flow pumps；2- upper cavities；3- micro ejectors；4- lower chambers；5- micro jet flow coldplates；6- optically focused light
Lie prostrate solar panel；7- pipelines；8- cooling tanks；9- outside heat sinks；10- fans；11- cooling liquid storage tanks；12- cooling liquid outlets are logical
Road；13- micro-channels；14- porous super-hydrophilic surface structures；15- coolant liquid liquid separations channel.
Specific implementation mode
The goal of the invention of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, embodiment is not
It can repeat one by one herein, but therefore embodiments of the present invention are not defined in following embodiment.
Embodiment one
As shown in Fig. 2, a kind of micro jet flow coldplate that porous heating surface is added, the rectangle work of the micro jet flow coldplate
It is centrally located by the porous super-hydrophilic surface structure 14 being made of several equally distributed apertures, the two-phase of the working face as face
It is arranged in parallel with two cooling liquid outlet channels at opposite side, both ends connection is arranged in parallel at the another two relative edge of the working face
The coolant liquid collection channel 15 in the cooling liquid outlet channel, the porous super-hydrophilic surface structure 14 and the cooling liquid outlet
Several micro-channels 13 are uniformly provided with and communicated between channel, coolant liquid collection channel 15.Coolant liquid is sprayed onto more by micro ejector
On pore structure coldplate, equally distributed micro-channel 13 is flowed through, is then pooled to cooling liquid outlet channel 12 and coolant liquid point
In liquid channel 15, the coolant liquid is water, ethyl alcohol or refrigerant.
The aperture of the porous super-hydrophilic surface structure 14 is uniformly distributed by matrix, and the spacing distance of the aperture is
0.1mm~0.5mm.The radius of the aperture is 0.04mm ~ 0.06mm, hole depth 0.08-0.11mm.It is described porous super hydrophilic
Surface texture 14 can increase bubble departure frequency, and ultra-hydrophilic surface can promote being replenished in time for boiling bubble departure liquid phase,
It realizes and exchanges heat to the moment of localized hyperthermia.
The cross sectional shape of the micro-channel 13 is rectangle, and sectional dimension is 0.5mm × 0.5mm, meanwhile, it is described fine logical
The bottom surface in road 13 is the hydrophobic surface that contact angle is 120 degree ~ 180 degree.To reduce the thermal resistance on channel surface, increases phase transformation and pass
The thermal efficiency.
As shown in Figure 1, the cooling system of Condensation photovoltaic battery includes the liquid for being in turn connected to form circulation loop by pipeline 7
Fluid reservoir 11, flow pump 1, micro-fluid ejection device, cooling tank 8, between the upper cavity 2 and lower chamber 4 of the micro-fluid ejection device
Several micro ejectors 3 are provided with, the micro jet flow coldplate 5 that above-described embodiment provides is located at 4 bottom of the lower chamber, micro-injection
Porous super-hydrophilic surface structure 14 on stream 5 working face of coldplate is oppositely arranged with the micro ejector 3, and the micro jet flow is cold
But the back side of plate 5 is close to be arranged with Condensation photovoltaic battery plate 6, and outside heat sink 9 and fan 10 are provided on the cooling tank 8.
The size of the micro jet flow coldplate 5 is identical as Condensation photovoltaic battery plate 6, the following table of the micro jet flow coldplate 5
Face is connected with photovoltaic battery panel, in actual use, as needed, can be placed in parallel several along 12 direction of cooling liquid outlet channel
The micro jet flow coldplate 5, and the micro jet flow coldplate 5 being placed in parallel is interconnected, and can further improve heat exchange effect
Fruit.
The workflow of the cooling system of the Condensation photovoltaic battery is as follows：
First, coolant liquid enters the upper cavity 2 in micro-fluid ejection device under the driving of flow pump 1 by cooling liquid storage tank 11,
The coolant liquid reached in the upper cavity 2 is sprayed onto by micro ejector 3 on micro jet flow coldplate 5, the micro jet flow cooling
Plate 5 is connected with Condensation photovoltaic battery plate 6, and coolant liquid takes away the heat of Condensation photovoltaic battery plate 6, and then coolant liquid enters cooling
Tank 8 takes away the heat in outside heat sink 9 under the action of 10 air blast cooling of fan, to make coolant liquid cool down once again, into
Enter cooling liquid storage tank 11 and completes a cycle.
Embodiment two
A kind of manufacturing method of such as micro jet flow coldplate, including step：
1）The machining process that extruding is cut by plough in smooth metal substrate surface processes the cooling liquid outlet channel, cold
But liquid collection channel 15 and micro-channel 13；
2）Porous super-hydrophilic surface structure 14 is prepared in metal substrate intermediate region using the method for particle sintering；
3）Hydrophobic surface processing is carried out to 13 bottom surface of the micro-channel using chemical deposition.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
All any modification, equivalent and improvement etc., should be included in the protection of the claims in the present invention made by within spirit and principle
Within the scope of.
Claims (10)
1. a kind of micro jet flow coldplate that porous heating surface is added, it is characterised in that：The square of the micro jet flow coldplate
Shape working face is centrally located by the porous super-hydrophilic surface structure (14) being made of several equally distributed apertures, the working face
Two relative edges at be arranged in parallel with two cooling liquid outlet channels, be arranged in parallel with two at the another two relative edge of the working face
End is connected to the coolant liquid collection channel (15) of the cooling liquid outlet channel (12), the porous super-hydrophilic surface structure (14) with
Several micro-channels (13) are uniformly provided with and communicated between the cooling liquid outlet channel, coolant liquid collection channel (15).
2. micro jet flow coldplate according to claim 1, it is characterised in that：The porous super-hydrophilic surface structure (14)
Aperture be uniformly distributed by matrix.
3. micro jet flow coldplate according to claim 1, it is characterised in that：The spacing distance of the aperture be 0.1mm ~
0.5mm。
4. micro jet flow coldplate according to claim 1, it is characterised in that：The radius of the aperture be 0.04mm ~
0.06mm, hole depth 0.08-0.11mm.
5. micro jet flow coldplate according to claim 1, it is characterised in that：The cross sectional shape of the micro-channel (13)
For rectangle.
6. micro jet flow coldplate according to claim 5, it is characterised in that：The sectional dimension of the micro-channel (13)
For 0.5mm × 0.5mm.
7. micro jet flow coldplate according to claim 1, it is characterised in that：The bottom surface of the micro-channel (13) is thin
Aqueous surface.
8. micro jet flow coldplate according to claim 7, it is characterised in that：The contact angle of the hydrophobic surface is
120 degree ~ 180 degree.
9. a kind of manufacturing method of the micro jet flow coldplate as described in any one of claim 1 to 8, which is characterized in that including
Step：
1）The cooling liquid outlet channel, coolant liquid collection channel (15) and micro-channel are processed in smooth metal substrate surface
(13)；
2）Porous super-hydrophilic surface structure (14) is prepared in metal substrate intermediate region using the method for particle sintering；
3）Hydrophobic surface processing is carried out to the micro-channel (13) bottom surface using chemical deposition.
10. manufacturing method according to claim 9, it is characterised in that：The step 1）The machinery that extruding is cut by plough adds
Work method processes the cooling liquid outlet channel (12), coolant liquid collection channel (15) and fine in smooth metal substrate surface
Channel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403948.XA CN108418545A (en) | 2018-04-28 | 2018-04-28 | A kind of micro jet flow coldplate and its manufacturing method that porous heating surface is added |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403948.XA CN108418545A (en) | 2018-04-28 | 2018-04-28 | A kind of micro jet flow coldplate and its manufacturing method that porous heating surface is added |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418545A true CN108418545A (en) | 2018-08-17 |
Family
ID=63137286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403948.XA Pending CN108418545A (en) | 2018-04-28 | 2018-04-28 | A kind of micro jet flow coldplate and its manufacturing method that porous heating surface is added |
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| Country | Link |
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| CN (1) | CN108418545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076587A (en) * | 2019-12-05 | 2020-04-28 | 江苏科技大学 | Impact jet flow array phase change cooling device combined with foam metal |
| CN113960103A (en) * | 2021-07-30 | 2022-01-21 | 西安交通大学 | Microchannel phase change heat transfer test device and microchannel heat exchanger |
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| TWI259053B (en) * | 2005-03-31 | 2006-07-21 | Ind Tech Res Inst | Spray cooling module for electronic device |
| CN201312475Y (en) * | 2008-12-05 | 2009-09-16 | 中国科学技术大学 | Liquid cooling porous foam metal radiator |
| EP2151863A1 (en) * | 2008-07-31 | 2010-02-10 | Lucent Technologies Inc. | A jet impingement cooling system |
| CN202712233U (en) * | 2012-07-30 | 2013-01-30 | 中国科学技术大学 | Concentrating photovoltaic heat exchange cooling device |
| CN206895106U (en) * | 2017-06-22 | 2018-01-16 | 华南理工大学 | A kind of spray cooling device |
| CN208299753U (en) * | 2018-04-28 | 2018-12-28 | 华南理工大学 | A kind of micro jet flow coldplate that porous heating surface is added |
-
2018
- 2018-04-28 CN CN201810403948.XA patent/CN108418545A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI259053B (en) * | 2005-03-31 | 2006-07-21 | Ind Tech Res Inst | Spray cooling module for electronic device |
| EP2151863A1 (en) * | 2008-07-31 | 2010-02-10 | Lucent Technologies Inc. | A jet impingement cooling system |
| CN201312475Y (en) * | 2008-12-05 | 2009-09-16 | 中国科学技术大学 | Liquid cooling porous foam metal radiator |
| CN202712233U (en) * | 2012-07-30 | 2013-01-30 | 中国科学技术大学 | Concentrating photovoltaic heat exchange cooling device |
| CN206895106U (en) * | 2017-06-22 | 2018-01-16 | 华南理工大学 | A kind of spray cooling device |
| CN208299753U (en) * | 2018-04-28 | 2018-12-28 | 华南理工大学 | A kind of micro jet flow coldplate that porous heating surface is added |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076587A (en) * | 2019-12-05 | 2020-04-28 | 江苏科技大学 | Impact jet flow array phase change cooling device combined with foam metal |
| CN113960103A (en) * | 2021-07-30 | 2022-01-21 | 西安交通大学 | Microchannel phase change heat transfer test device and microchannel heat exchanger |
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