CN104930891A - Self-cleaning heat pipe with super-hydrophilic liquid absorption core - Google Patents
Self-cleaning heat pipe with super-hydrophilic liquid absorption core Download PDFInfo
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- CN104930891A CN104930891A CN201510307999.9A CN201510307999A CN104930891A CN 104930891 A CN104930891 A CN 104930891A CN 201510307999 A CN201510307999 A CN 201510307999A CN 104930891 A CN104930891 A CN 104930891A
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Abstract
The invention discloses a self-cleaning heat pipe with a super-hydrophilic liquid absorption core. The self-cleaning heat pipe comprises a pipe shell, the super-hydrophilic liquid absorption core and a super-hydrophobic film. The pipe shell is provided with a closed cavity, the super-hydrophilic liquid absorption core and a heat-transfer medium are arranged in the closed cavity, the super-hydrophilic liquid absorption core comprises a liquid absorption core and a super-hydrophilic film, the liquid absorption core is a silk screen liquid absorption core, the super-hydrophilic film is arranged on the surface of the silk screen liquid absorption core, the thickness of a surface rough structure of the super-hydrophilic film ranges from 50 nanometers to 500 nanometers, the top diameter of the surface rough structure of the super-hydrophilic film ranges from 1 nanometer to 200 nanometers, and the top distance of the surface rough structure of the super-hydrophilic film ranges from 10 nanometers to 100 nanometers. The super-hydrophobic film covers the outer surface of the pipe shell, and the thickness of the super-hydrophobic film ranges from 50 nanometers to 500 nanometers. By nano-scale rough structure construction, the heat transfer performance of the heat pipe can be improved, the super-hydrophobic film has adhesion resistance, the problem of ash deposition of the outer surface of the heat pipe can be solved, and self-cleaning is realized. Self-cleaning and heat transfer performances of the heat pipe are effectively improved.
Description
Technical field
The present invention relates to a kind of automatically cleaning heat pipe with super hydrophilic liquid-sucking core, belong to technical field of heat exchange.
Background technology
Heat pipe is a kind of element relying on the phase transformation of therein hydraulic fluid to realize heat transmission, and it utilizes the evaporation of liquid and condensation that heat is transmitted fast.It can by very little cross-sectional area long-distance sand transport heat without the need to additionaling power simultaneously.Just because of the heat transfer property that heat pipe self is excellent, heat pipe is used widely in fields such as solar heating, Electronic cooling, chemical, Aero-Space.
Heat pipe mainly relies on liquid-sucking core in pipe to obtain capillary force and realizes heat transmission, and the heat transfer medium backflow that liquid-sucking core orders about directly affects heat transfer efficiency, is therefore necessary to improve liquid-sucking core further, realizes efficient heat transfer.
For the heat pipe be chronically exposed in air, its outer surface is easy to attract dust, which increases heat pipe heating surface thermal resistance, reduces heat transfer property.Clean surface impurity needs at substantial human and material resources simultaneously.
Summary of the invention
Given this, be necessary to provide a kind of automatically cleaning heat pipe realizing efficient heat transfer.
For achieving the above object, the technical scheme that the present invention takes is as follows.
There is an automatically cleaning heat pipe for super hydrophilic liquid-sucking core, comprise shell, super hydrophilic liquid-sucking core, based superhydrophobic thin films.Described shell material is copper, stainless steel etc.; Described shell is closed cavity; Containing super hydrophilic liquid-sucking core and heat transfer medium in described closed cavity; Described super hydrophilic liquid-sucking core comprises liquid-sucking core and super-hydrophilic film two parts; Described liquid-sucking core is silk screen liquid-sucking core; Described super-hydrophilic film is on silk screen liquid-sucking core surface; Described super-hydrophilic film surface roughness thickness is between 50 ~ 500 nm; Described super-hydrophilic film surface roughness top diameter is between 1 ~ 200 nm; Described super-hydrophilic film surface roughness top spacing is between 10 ~ 100 nm.Described based superhydrophobic thin films overlays on shell outer surface; Described based superhydrophobic thin films thickness is between 50 ~ 500 nm; Described based superhydrophobic thin films is based on materials such as high-thermal conductive metal, metal oxide, graphite.
Beneficial effect of the present invention: described super-hydrophilic film, constructs the surface area and capillarity that add liquid-sucking core by nanometer coarse structure, thus promote the evaporation of heat pipe evaporator section, the condensation of condensation segment and liquid backflow, improve heat transfer property.Described based superhydrophobic thin films, its surface has good anti-adhesive properties, and surface dirt can be removed by rain drop erosion effect, thus can realize the self-cleaning function of tube surface.
Accompanying drawing explanation
Fig. 1 is the automatically cleaning heat pipe structure schematic diagram with super hydrophilic liquid-sucking core.
In figure, 1 is shell; 2 is super hydrophilic liquid-sucking core; 3 is based superhydrophobic thin films; 4 is evaporator section; 5 is condensation segment.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the invention is described further.
Shell 1 material is copper, stainless steel etc.
Silk screen liquid-sucking core is prepared at shell 1 inner surface.
The method such as chemical bath deposition, electrochemical deposition is adopted to construct super-hydrophilic film after clearing up liquid-sucking core surface.For increasing surface wettability, this film is to have the nanostructured of obvious roughness.
Pour into suitable heat transfer medium after being vacuumized by shell 1, then close the mouth of pipe, form enclosure space.
The method such as chemical bath deposition, magnetron sputtering constructing super-drainage film 3 is adopted after shell 1 outer surface is cleared up.For reducing thermal resistance, this film is based on high-thermal conductive metal and the material such as metal oxide, graphite.
When evaporator section in heat pipe 4 is heated, the heat transferring medium in heat pipe is at super hydrophilic liquid-sucking core surface rapid vaporization, and steam flows to condensation segment 5 under small pressure differential, and releases heat.Now drop merges in the surperficial rapid condensation of the super hydrophilic liquid-sucking core 2 of condensation segment, and by capillarity, drop is back to evaporator section 4.By this Rapid Circulation, heat can be come by conduction continuously.
By constructing of liquid-sucking core surface super hydrophilic film, add surface area, promote the transfer rate of evaporator section heat.
By constructing of super hydrophilic liquid-sucking core in heat pipe, add surface wettability, promote that liquid is in the rapid condensation fusion of inwall and the backflow to evaporator section.
The based superhydrophobic thin films of heat pipe outer surface can reduce drop in tube surface wetability, and drop exists with pearl form at tube surface, can speed away and take away surface dirt, realizing self-cleaning performance.
Claims (9)
1. there is an automatically cleaning heat pipe for super hydrophilic liquid-sucking core, comprise shell, super hydrophilic liquid-sucking core, based superhydrophobic thin films.
2. shell as claimed in claim 1 is the material such as copper, stainless steel.
3. contain super hydrophilic liquid-sucking core and heat transfer medium in shell as claimed in claim 1.
4. super hydrophilic liquid-sucking core as claimed in claim 1 comprises liquid-sucking core and super-hydrophilic film two parts.
5. liquid-sucking core as claimed in claim 4 is silk screen liquid-sucking core.
6. super-hydrophilic film as claimed in claim 4 is on liquid-sucking core surface, to have the nanostructured of obvious roughness.
7. super-hydrophilic film surface roughness thickness as claimed in claim 4 is between 50 ~ 500 nm, and top diameter is between 1 ~ 200 nm, and top spacing is between 10 ~ 100 nm.
8. based superhydrophobic thin films as claimed in claim 1 overlays on shell outer surface, and thickness is between 50 ~ 500 nm.
9. based superhydrophobic thin films as claimed in claim 1 is based on materials such as high-thermal conductive metal, metal oxide, graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307999.9A CN104930891A (en) | 2015-06-08 | 2015-06-08 | Self-cleaning heat pipe with super-hydrophilic liquid absorption core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307999.9A CN104930891A (en) | 2015-06-08 | 2015-06-08 | Self-cleaning heat pipe with super-hydrophilic liquid absorption core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104930891A true CN104930891A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510307999.9A Pending CN104930891A (en) | 2015-06-08 | 2015-06-08 | Self-cleaning heat pipe with super-hydrophilic liquid absorption core |
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| CN (1) | CN104930891A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041102A (en) * | 2016-12-09 | 2017-08-11 | 淳铭散热科技股份有限公司 | The heat abstractor of a kind of electronic equipment and device |
| CN111076591A (en) * | 2019-12-25 | 2020-04-28 | 大连理工大学 | Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack |
| CN112299515A (en) * | 2020-10-23 | 2021-02-02 | 中国矿业大学 | Solar seawater desalination device capable of realizing fresh water-salt-electricity cogeneration and manufacturing method thereof |
| CN113137886A (en) * | 2021-04-08 | 2021-07-20 | 南京工业职业技术大学 | 5G mobile phone honeycomb bionic liquid absorption core vapor chamber and preparation method thereof |
| CN114184072A (en) * | 2021-12-10 | 2022-03-15 | 深圳市顺熵科技有限公司 | Liquid absorption core preparation method and heat pipe comprising liquid absorption core |
-
2015
- 2015-06-08 CN CN201510307999.9A patent/CN104930891A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041102A (en) * | 2016-12-09 | 2017-08-11 | 淳铭散热科技股份有限公司 | The heat abstractor of a kind of electronic equipment and device |
| CN111076591A (en) * | 2019-12-25 | 2020-04-28 | 大连理工大学 | Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack |
| CN112299515A (en) * | 2020-10-23 | 2021-02-02 | 中国矿业大学 | Solar seawater desalination device capable of realizing fresh water-salt-electricity cogeneration and manufacturing method thereof |
| CN112299515B (en) * | 2020-10-23 | 2022-02-15 | 中国矿业大学 | Solar seawater desalination device capable of realizing fresh water-salt-electricity cogeneration and manufacturing method thereof |
| CN113137886A (en) * | 2021-04-08 | 2021-07-20 | 南京工业职业技术大学 | 5G mobile phone honeycomb bionic liquid absorption core vapor chamber and preparation method thereof |
| CN114184072A (en) * | 2021-12-10 | 2022-03-15 | 深圳市顺熵科技有限公司 | Liquid absorption core preparation method and heat pipe comprising liquid absorption core |
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Application publication date: 20150923 |