CN106440897B - A kind of bionical pulsating heat pipe of plant leaf blade - Google Patents
A kind of bionical pulsating heat pipe of plant leaf blade Download PDFInfo
- Publication number
- CN106440897B CN106440897B CN201610835147.1A CN201610835147A CN106440897B CN 106440897 B CN106440897 B CN 106440897B CN 201610835147 A CN201610835147 A CN 201610835147A CN 106440897 B CN106440897 B CN 106440897B
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- CN
- China
- Prior art keywords
- bionical
- heat pipe
- evaporator
- fluid channel
- pulsating heat
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/043—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure forming loops, e.g. capillary pumped loops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0029—Heat sinks
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Bionical pulsating heat pipe specific structure described in a kind of bionical pulsating heat pipe of plant leaf blade includes evaporator, fin, chain box cupling, liquid injecting mouth, nozzle structure, adiabatic section, condensation segment, evaporator section；The bionical fluid channel of evaporator is distributed to each heat dissipation region and converges again, it can be mirror-image structure at left and right sides of bionical fluid channel, therefore the bionical fluid channel of single layer is reduced to along square two diagonal symmetrical mirror images, heat source region is divided into the big delta-shaped regions such as four by square two diagonal lines, one of triangle is subjected to mirror image twice along two diagonal lines, obtain last square and adjusts bionical fluid channel connection.The present invention can realize steam and liquid separation in time, can allow and be flowed up into thick pipe under the action of density contrast rapidly by thermogenetic steam.
Description
Technical field
The present invention relates to a kind of bionical pulsating heat pipes of plant leaf blade, belong to Thermal Equipment field, are applied to semiconductor, micro- electricity
Sub- high efficiency and heat radiation is cooling.
Background technique
With the rapid development of electronics industry, the performance of electronic device is become better and better, and integrated level is higher and higher, unit plane
The power that product electronic component can be generated is also increasing accordingly.For narrow inside of electronic component space, higher heat
Current density can make electronic device generate partly or wholly high temperature, and then the performance of electronic equipment can gently declined, heavy then generate thermal change
Shape causes electronic component fatigue damage or failure.This is that heat dissipation problem between integrated component upgrades at electronic device
One of bottleneck problem.How effectively the temperature of electronic device to be controlled in a reasonable range, has become electronics
Topic common to industry.
Every research of pulsating heat pipe at this stage, it is especially mature with the Research tendency of structural parameters, therefore to find new
It breaks through, i.e., evaporator section is transformed on the basis of traditional pulsating heat pipe, with more superior steam-water separation performance, is subtracted
The relative flow resistance of vent plug and liquid plug in few heat pipe, reduces the reflux of cooling working medium, can generate one-way flow earlier.
Summary of the invention
The purpose of the present invention is providing a kind of bionical pulsating heat pipe of plant leaf blade for prior art deficiency, by pulsing
The evaporator section of heat pipe increases a part of evaporator, so that pulsating heat pipe starting is more easier；Simultaneously because the bionical knot of plant leaf blade
The effect of structure, so that the Working fluid flow in evaporator section is more smooth.I.e. from evaporator section through capillary to cooling section, then via thinner
Capillary flow into evaporator section.Due to the thickness of two sections of pipelines and the difference of length, the bubble that evaporator section generates is easier
Cooling section is flowed by extra heavy pipe, and due to the effect of capillary pressuring difference, the working medium of cooling section flows back to evaporator section through tubule, completes one
A circulation.
The bionical pulsating heat pipe specific structure of plant leaf blade of the present invention include evaporator, fin, chain box cupling, liquid injecting mouth,
Nozzle structure, adiabatic section；
The bionical fluid channel of the evaporator is distributed to each heat dissipation region and converges again, due to the dispersion and remittance of coolant liquid
It is poly- to be reversible process, it is mirror-image structure at left and right sides of bionical fluid channel, therefore the bionical fluid channel of single layer is reduced to along just
Heat source region is divided into four by square two diagonal lines and waited greatly by rectangular two diagonal symmetrical mirror images
Delta-shaped region, one of triangle is subjected to mirror image twice along two diagonal lines, obtains last square and adjustment
Bionical canaliculus connection；
The condensation segment is connected with adiabatic section by threaded chain box cupling；
Screwed liquid injecting mouth is installed on the chain box cupling on right side, by nozzle structure connect evaporator section pipeline and
Evaporator, when connection, smear sealant；
The evaporator is plant leaf vein type, is made of laser-induced thermal etching mode；
The hydraulic diameter of the pulsating heat pipe pipeline meets:
G is acceleration of gravity in formula, and d indicates equivalent diameter, and ρ indicates the density of filling liquid in pulsating heat pipe, and σ indicates surface
Tension, subscript l, v respectively represent liquid and gas.
Beneficial effects of the present invention: the mal-distribution of left and right length of pipe and flow, it will so that flow velocity generates difference,
One-way circulation flowing is presented under the action of capillary pressuring difference, when steady operation；Using the evaporator section of bionical runner, reduces and change
Thermal resistance and flow resistance, and steam and liquid separation can be realized in time, it can allow by thermogenetic steam rapidly in density
Thick pipe is flowed up under the action of difference.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the bionical pulsating heat pipe of plant leaf blade；
In figure: a is evaporator；B is fin；C is chain box cupling；D is liquid injecting mouth；E is nozzle structure；F is adiabatic section；G is
Condensation segment；K is evaporator section.
Specific embodiment
The present invention is described as follows in conjunction with attached drawing:
It is the structure of bionical pulsating heat pipe of the present invention in figure: evaporator, fin, chain box cupling, liquid injecting mouth, jet pipe knot
Structure, adiabatic section, condensation segment, evaporator section.
Evaporator section is connected with adiabatic section by screwed chain box cupling, is conducive to installation and the mass of pulsating heat pipe
Production；
The present invention is first vacuumized from liquid injecting mouth by pulsating heat pipe, then from the working medium of injection certain volume, so that filling rate
It is 70%, then closes liquid injecting mouth；
After heating to evaporator section, fluid channel is distributed to each heat dissipation region and converged again by the bionical fluid channel of evaporator
It is poly-.The dispersion and convergence for considering coolant liquid are reversible process, mirror-image structure are also possible at left and right sides of runner, therefore will be single
Laminar flow road is reduced to along square two diagonal symmetrical mirror images, by two diagonal lines of square by heat source area
Domain is divided into the big delta-shaped regions such as four, and one of triangle is carried out mirror image twice along two diagonal lines, is obtained most
Rear square simultaneously adjusts runner connection.The mal-distribution of left and right length of pipe and flow, it will so that flow velocity generates difference,
One-way circulation flowing is presented under the action of capillary pressuring difference, when steady operation；Using the evaporator section of bionical runner, reduces and change
Thermal resistance and flow resistance, and steam and liquid separation can be realized in time, it can allow by thermogenetic steam rapidly in density
Thick pipe is flowed up under the action of difference, the starting speed of raising shortens the starting time.
Claims (2)
1. a kind of bionical pulsating heat pipe of plant leaf blade, it is characterised in that: the bionical pulsating heat pipe specific structure packet of plant leaf blade
Include evaporator, fin, chain box cupling, liquid injecting mouth, nozzle structure, adiabatic section, condensation segment, evaporator section；
The bionical fluid channel of the evaporator is distributed to each heat dissipation region and converges again, since the dispersion and convergence of coolant liquid are
Reversible process is mirror-image structure at left and right sides of bionical fluid channel, therefore the bionical fluid channel of single layer is reduced to along square
Heat source region is divided into four by square two diagonal lines and waits big three by two diagonal symmetrical mirror images
One of triangle is carried out mirror image twice along two diagonal lines, obtains last square and adjust bionical by angular domain
Fluid channel connection；
The condensation segment is connected with adiabatic section by threaded chain box cupling；
Screwed liquid injecting mouth is installed on the chain box cupling on right side, pipeline and the evaporation of evaporator section are connected by nozzle structure
Device, when connection, smear sealant；
The hydraulic diameter of the pulsating heat pipe pipeline meets:
G is acceleration of gravity in formula, and d indicates equivalent diameter, and ρ indicates the density of filling liquid in pulsating heat pipe, and σ indicates surface
Power, subscript l, v respectively represent liquid and gas.
2. the bionical pulsating heat pipe of a kind of plant leaf blade according to claim 1, it is characterised in that: the evaporator is plant
Venation is made of laser-induced thermal etching mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835147.1A CN106440897B (en) | 2016-09-21 | 2016-09-21 | A kind of bionical pulsating heat pipe of plant leaf blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835147.1A CN106440897B (en) | 2016-09-21 | 2016-09-21 | A kind of bionical pulsating heat pipe of plant leaf blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106440897A CN106440897A (en) | 2017-02-22 |
| CN106440897B true CN106440897B (en) | 2018-12-04 |
Family
ID=58166018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610835147.1A Active CN106440897B (en) | 2016-09-21 | 2016-09-21 | A kind of bionical pulsating heat pipe of plant leaf blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440897B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332452A (en) * | 2018-03-15 | 2018-07-27 | 青岛大学 | A kind of bionical inflation type evaporator of evaporator as a whole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2267071C2 (en) * | 2000-06-09 | 2005-12-27 | Гадельшин Марат Шавкатович | Heat-exchanging system |
| CN102691999A (en) * | 2012-05-11 | 2012-09-26 | 南昌大学 | Plate-type pulsating heat pipe used in large power LED heat radiation |
| CN103033078A (en) * | 2011-09-29 | 2013-04-10 | 富士通株式会社 | Loop heat pipe and electronic apparatus |
| CN105547023A (en) * | 2016-01-27 | 2016-05-04 | 南昌大学 | Diameter-changeable pulsating heat pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192669A1 (en) * | 2002-04-10 | 2003-10-16 | Memfuel International Corporation | Micro-loop heat pipe |
| JP4434773B2 (en) * | 2004-02-18 | 2010-03-17 | 株式会社ウェルリサーチ | Evaporator for mini loop heat pipe |
-
2016
- 2016-09-21 CN CN201610835147.1A patent/CN106440897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2267071C2 (en) * | 2000-06-09 | 2005-12-27 | Гадельшин Марат Шавкатович | Heat-exchanging system |
| CN103033078A (en) * | 2011-09-29 | 2013-04-10 | 富士通株式会社 | Loop heat pipe and electronic apparatus |
| CN102691999A (en) * | 2012-05-11 | 2012-09-26 | 南昌大学 | Plate-type pulsating heat pipe used in large power LED heat radiation |
| CN105547023A (en) * | 2016-01-27 | 2016-05-04 | 南昌大学 | Diameter-changeable pulsating heat pipe |
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| Publication number | Publication date |
|---|---|
| CN106440897A (en) | 2017-02-22 |
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