CN202274789U - Heat-transfer-reinforced heat pipe - Google Patents
Heat-transfer-reinforced heat pipe Download PDFInfo
- Publication number
- CN202274789U CN202274789U CN2011204158425U CN201120415842U CN202274789U CN 202274789 U CN202274789 U CN 202274789U CN 2011204158425 U CN2011204158425 U CN 2011204158425U CN 201120415842 U CN201120415842 U CN 201120415842U CN 202274789 U CN202274789 U CN 202274789U
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- CN
- China
- Prior art keywords
- heat pipe
- heat
- copper
- transfer
- evaporation
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- 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.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat-transfer-reinforced heat pipe including a heat pipe evaporation section. A cylindrical steam radiating section made of copper foam is arranged on the center of the heat pipe evaporation section, and the external path of the cylindrical steam radiating section is tightly cooperated with the internal of the heat pipe. When the heat-transfer-reinforced heat pipe employs such a structure, heat on the inner wall of the heat pipe is transferred to the copper foam during operation, and heat due to excellent thermal conductivity of copper can be rapidly transferred to all parts of the copper foam. The porous copper foam is infiltrated with liquid, and the evaporation area increases dozens of times, thereby greatly reducing the evaporation thermal resistance of the evaporation section, and improving the integral performance of the heat pipe.
Description
Technical field
The present invention relates to heat pipe, especially use the heat pipe of foam copper as the evaporator section wick.
Background technology
Heat pipe is the fabulous parts of a kind of heat transfer property; The principle that relies on its phase transition of vacuum to conduct heat; Have that thermal resistance is low, the characteristics of reliable operation, be called as " superconductor " of heat transfer, thereby be widely used in fields such as power electronics, coal, oil, track traffic, metallurgy.
Heat pipe is in work, and heat passes to evaporator section by the outside, and then passes to medium; Make medium be heated and flash to gas, be diffused into whole heat pipe inner chamber, meet condensation when gas at condensation segment and form liquid by liquid; Rely on gravity to flow back to evaporator section, discharge heat simultaneously.Therefore, in order to improve the Heat Transfer of Heat Pipe on Heat Pipe performance, reduce and transmit thermal resistance, the most directly way increases the surface area of evaporator section and condensation segment.
For present heat pipe, increasing the main means of evaporator section surface area has copper powder sintering, use fluted tube, built-in copper mesh etc.For the heat pipe of diameter less than 10 millimeters, owing to mainly partly adopt press-fit approach with the heat absorption heat release, thereby generally adopt the way of copper powder sintering; Diameter is greater than 10 millimeters heat pipe, because partly adopt the technology of nest plate with heat release, if sintering can cause copper pipe annealing, and undercapacity, therefore general fluted tube and the built-in copper mesh way of adopting.But fluted tube is owing to the relation of wall thickness, and conduit can not be too dark, so the area increase is limited, generally in 15%.The way of built-in copper mesh, because copper mesh is inner at copper pipe, the applying between it is mutual is not sure of, so its performance still remains to be investigated.
The utility model content
The goal of the invention of the utility model be exactly to present diameter at the heat pipe more than 10 millimeters, through using a kind of foam copper, be fixed on the evaporator section of heat pipe with the mode of assembling, in order to increase the contact area of evaporator section and medium.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of heat pipe of augmentation of heat transfer; Comprise heat pipe evaporator section; Wherein, the centre of said heat pipe evaporator section also is provided with one section steam radiating segment of being made up of foam copper; Said steam radiating segment is processed cylindric, and its external diameter and inside heat pipe closely cooperate.
Further, said steam radiating segment is provided with a plurality of in order to the hole as steam passages.
Further, the diameter of said heat pipe evaporator section is more than 10 millimeters.
The utility model has been taked after the technique scheme, in the time of work, and the heat transferred foam copper of heat pipe inwall; Rely on the good thermal conductivity of copper; Therefore make heat be delivered to each position of foam copper very soon, and liquid has all been soaked in cavernous foam copper inside, can evaporate on tens times the area obtaining than increasing in the past; Therefore greatly reduce the evaporation thermal resistance of evaporator section, improved the overall efficiency of heat pipe.
Description of drawings
Below in conjunction with accompanying drawing the utility model is carried out detailed description, so that the above-mentioned advantage of the utility model is clearer and more definite.
Fig. 1 is the sketch map of the heat pipe of present embodiment augmentation of heat transfer.
The specific embodiment
Come the utility model is described below in conjunction with accompanying drawing and specific embodiment.
Wherein, the utility model is mainly used in present diameter on the heat pipe more than 10 millimeters.
The utility model has been taked a kind of material that is called foam copper, and wherein, it comprises the copper matrix and in inner equally distributed a large amount of connections of copper matrix or non-intercommunicating pore hole.
And the electric conductivity of foam copper and ductility are good, and preparation cost is lower than nickel foam, and electric conductivity is better, can use it for preparation cell negative electrode material, catalyst carrier and electromagnetic shielding material.
Wherein, among the utility model, the foam copper that we take is a kind of foamed red copper, and interior porosity reaches more than 30%.
Like figure, the heat pipe of said augmentation of heat transfer comprises heat pipe evaporator section 1, and wherein, the centre of said heat pipe evaporator section 1 also is provided with one section steam radiating segment 2 of being made up of foam copper, and said steam radiating segment is processed cylindric, and its external diameter and inside heat pipe closely cooperate.
And said steam radiating segment is provided with a plurality of in order to the hole 3 as steam passages, these holes more than 3 by foam copper originally on one's body internal holes form.
The utility model when in use, through mould foam copper is manufactured cylindric, its external diameter and heat pipe inwall tight fit, hole is reserved as the vapor stream circulation passage in the centre.Confirm the length of foam copper cylinder during assembling according to the length of heating part.
In the time of work; The heat transferred foam copper of heat pipe inwall relies on the good thermal conductivity of copper, makes heat be delivered to each position of foam copper very soon; And liquid has all been soaked in cavernous foam copper inside; Therefore can evaporate on tens times the area obtaining than increasing in the past, therefore greatly reduced the evaporation thermal resistance of evaporator section, improved the overall efficiency of heat pipe.
It should be noted that; Above-mentioned specific embodiment only is exemplary; Under the above-mentioned instruction of the utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in the protection domain of the utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of the utility model, are not to be used to limit the utility model.The protection domain of the utility model is limited claim and equivalent thereof.
Claims (3)
1. the heat pipe of an augmentation of heat transfer is characterized in that, comprises heat pipe evaporator section, and wherein, the centre of said heat pipe evaporator section also is provided with one section steam radiating segment of being made up of foam copper, and said steam radiating segment is processed cylindric, and its external diameter and inside heat pipe closely cooperate.
2. the heat pipe of augmentation of heat transfer according to claim 1 is characterized in that, said steam radiating segment is provided with a plurality of in order to the hole as steam passages.
3. the heat pipe of augmentation of heat transfer according to claim 1 and 2 is characterized in that, the diameter of said heat pipe evaporator section is more than 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204158425U CN202274789U (en) | 2011-10-27 | 2011-10-27 | Heat-transfer-reinforced heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204158425U CN202274789U (en) | 2011-10-27 | 2011-10-27 | Heat-transfer-reinforced heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274789U true CN202274789U (en) | 2012-06-13 |
Family
ID=46195140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204158425U Expired - Fee Related CN202274789U (en) | 2011-10-27 | 2011-10-27 | Heat-transfer-reinforced heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274789U (en) |
-
2011
- 2011-10-27 CN CN2011204158425U patent/CN202274789U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20120613 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |