CN203642757U - Pulsating heat pipe with roughened structure - Google Patents
Pulsating heat pipe with roughened structure Download PDFInfo
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- CN203642757U CN203642757U CN201320773192.0U CN201320773192U CN203642757U CN 203642757 U CN203642757 U CN 203642757U CN 201320773192 U CN201320773192 U CN 201320773192U CN 203642757 U CN203642757 U CN 203642757U
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- heat pipe
- pulsating heat
- working medium
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Abstract
The utility model discloses a pulsating heat pipe with a roughened structure. The pulsating heat pipe is characterized in that the pulsating heat pipe is filled with acetone which is used as a working medium; the pulsating heat pipe comprises an evaporation section, a heat-insulation section, a condensation section and a working medium filled section; the heat-insulation section and the condensation section are integrally formed by the aid of capillary pipes; the evaporation section is connected with the heat-insulation section by means of welding; two ports of the working medium filled section are communicated with a three-way pipe; a granular structure is arranged on the surface of the inner wall of the evaporation section. The pulsating heat pipe has the advantages that the granular structure is arranged on the surface of the inner wall of the evaporation section, so that the lowermost temperature required for starting the pulsating heat pipe can be lowered, the pulsating heat pipe can be smoothly started to run even under the condition of low density of heat flow, the starting time can be effectively shortened, and the pulsating heat pipe has a wide application prospect in the field of heat dissipation for electronic components.
Description
Technical field
The utility model relates to electronic devices and components cooling heat radiator, particularly a kind of pulsating heat pipe with alligatoring structure.
Background technology
Along with the integrated level of electronic devices and components improves constantly, electronic equipment volume is more and more less, and the function of electronic equipment and complexity are growing, the caloric value of unit volume electronic device increases fast, it is more and more outstanding that heat dissipation problem becomes, and the high heat flux heat dissipation problem of euthermic chip has become one of maximum bottleneck of microelectronics industry development at present.And pulsating heat pipe is simple in structure changeable owing to having, strong adaptability, does not need capillary wick, manufactures simply, and the features such as good heat-transfer, are having good DEVELOPMENT PROSPECT aspect electronic device high efficiency cooling.Pulsating heat pipe is the capillary tube loop of one section of sealing serpentine bend and vacuum, is filled with after part working medium, and under the effect of capillary and bending force, working medium presents the original state of vapour-liquid plug random distribution.In the time that pulsating heat pipe evaporator section is heated, local working medium evaporation forms temperature difference and the pressure differential of cold and hot end, thereby drives the oscillating heat transfer of vapour-liquid plug.Traditional pulsating heat pipe is bent and is formed by capillary, wall smoother, after needing heat flow density to acquire a certain degree, could start, cause starting the too high temperature range that exceeds equipment permission of temperature rise, thereby affect the performance of equipment, meanwhile, also need start-up time of growing, limited pulsating heat pipe application in practice.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of pulsating heat pipe with alligatoring structure is provided.
The utility model is achieved through the following technical solutions:
Have a pulsating heat pipe for alligatoring structure, in pulsating heat pipe, perfusion acetone is as working medium; Described pulsating heat pipe comprises evaporator section 1, isolation section 2, condensation segment 3 and working medium perfusion section 4; Described isolation section 2 is one-body molded by capillary with condensation segment 3; Between described evaporator section 1 and isolation section 2, be connected to welding; Two interfaces of described working medium perfusion section 4 are communicated with three-way pipe 5; The surface of described evaporator section 1 inwall is nutty structure.
Described nutty structure adopts plating, electrochemical corrosion, chemical attack or powder sintered method to process.
The outside of described isolation section 2 is coated with heat-insulation layer.
With respect to prior art, the utlity model has following advantage and beneficial effect:
The utlity model has the pulsating heat pipe of alligatoring structure, the surface of its evaporator section 1 inwall is nutty structure, reduce pulsating heat pipe and started required minimum temperature, even under low heat flow density, pulsating heat pipe also can start operation smoothly, also will effectively shorten start-up time, have broad application prospects in cooling electronic component field simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figure 1.The utlity model has the pulsating heat pipe of alligatoring structure, in pulsating heat pipe, perfusion acetone is as working medium; Described pulsating heat pipe comprises evaporator section 1, isolation section 2, condensation segment 3 and working medium perfusion section 4; Described isolation section 2 is one-body molded by capillary with condensation segment 3; Between described evaporator section 1 and isolation section 2, be connected to welding; Two interfaces of described working medium perfusion section 4 are communicated with three-way pipe 5; The surface of described evaporator section 1 inwall is nutty structure (alligatoring structure), can adopt plating, electrochemical corrosion, chemical attack or the method such as powder sintered to process.Alligatoring structure contributes to increase nucleation site radius, and then be conducive to new bubble and form at the inwall of evaporator section 1, finally make pulsating heat pipe under low heat flow density, start smoothly operation, alligatoring structure size is generally several microns, alligatoring yardstick difference corresponding to different working medium, the best nucleation site radius of for example methyl alcohol working medium is 2 microns, and the best nucleation site radius of acetone working medium is 4 microns.
The coated heat-insulation layer (not shown) in outside of isolation section 2 is in order to guarantee pulsating heat pipe working effect the best.
Just can realize preferably as mentioned above the utility model.
Above-described embodiment is preferred embodiments of the present utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from the change of doing under Spirit Essence of the present utility model and principle and should be equivalent substitute mode, is included in protection domain of the present utility model.
Claims (3)
1. a pulsating heat pipe with alligatoring structure, is characterized in that: in pulsating heat pipe, perfusion acetone is as working medium; Described pulsating heat pipe comprises evaporator section, isolation section, condensation segment and working medium perfusion section; Described isolation section and condensation segment are one-body molded by capillary; Between described evaporator section and isolation section, be connected to welding; Two interfaces of described working medium perfusion section are communicated with three-way pipe; The surface of described evaporator section inwall is nutty structure.
2. there is according to claim 1 the pulsating heat pipe of alligatoring structure, it is characterized in that described nutty structure adopts plating, electrochemical corrosion, chemical attack or powder sintered method to process.
3. according to the pulsating heat pipe described in claim 1 or 2 with alligatoring structure, it is characterized in that the outside of isolation section is coated with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773192.0U CN203642757U (en) | 2013-11-28 | 2013-11-28 | Pulsating heat pipe with roughened structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773192.0U CN203642757U (en) | 2013-11-28 | 2013-11-28 | Pulsating heat pipe with roughened structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642757U true CN203642757U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320773192.0U Expired - Fee Related CN203642757U (en) | 2013-11-28 | 2013-11-28 | Pulsating heat pipe with roughened structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629960A (en) * | 2013-11-28 | 2014-03-12 | 华南理工大学 | Pulsating heat pipe with roughening structure |
| CN105890416A (en) * | 2016-05-27 | 2016-08-24 | 大连海事大学 | Efficient aluminum water pulsating heat pipe |
| CN106643239A (en) * | 2016-12-23 | 2017-05-10 | 华南理工大学 | Closed one-way operation pulsating heat tube heat transfer system driven by peristaltic pump and method |
-
2013
- 2013-11-28 CN CN201320773192.0U patent/CN203642757U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629960A (en) * | 2013-11-28 | 2014-03-12 | 华南理工大学 | Pulsating heat pipe with roughening structure |
| CN105890416A (en) * | 2016-05-27 | 2016-08-24 | 大连海事大学 | Efficient aluminum water pulsating heat pipe |
| CN105890416B (en) * | 2016-05-27 | 2018-07-31 | 大连海事大学 | High-efficiency aluminum water pulsating heat pipe |
| CN106643239A (en) * | 2016-12-23 | 2017-05-10 | 华南理工大学 | Closed one-way operation pulsating heat tube heat transfer system driven by peristaltic pump and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140611 Termination date: 20161128 |