CN203687711U - Cross flow type gravity assisted heat pipe - Google Patents
Cross flow type gravity assisted heat pipe Download PDFInfo
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- CN203687711U CN203687711U CN201320842265.7U CN201320842265U CN203687711U CN 203687711 U CN203687711 U CN 203687711U CN 201320842265 U CN201320842265 U CN 201320842265U CN 203687711 U CN203687711 U CN 203687711U
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- heat pipe
- flow type
- cross flow
- liquid storage
- gravity assisted
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Abstract
The utility model discloses a cross flow type gravity assisted heat pipe structure. The cross flow type gravity assisted heat pipe structure comprises a pipe shell, a sealed annular liquid storage chamber and an annular end cover, wherein a fluid channel penetrating in the axial direction is arranged in the center of a heat pipe; working liquid of which the volume accounts for 25-30 percent of the total volume of the liquid storage chamber is filled in the liquid storage chamber. According to the cross flow type gravity assisted heat pipe, the annular liquid storage chamber is adopted, and the fluid channel penetrating in the axial direction is arranged in the center of the heat pipe, so that the cross flow type structure is formed; condensed backflow liquid inside the cross flow type heat pipe flows back through the inner wall surface of an annular chamber body in contact with a cold fluid, the situation that the backflow liquid is carried into rising steam without entering an evaporation section due to overheating of the pipe wall of a conventional heat pipe is reduced, and under the condition of the same liquid filling amount, the heat flux transferrable by the cross flow type heat pipe is higher than that transferrable by the conventional heat pipe; according to the cross flow type heat pipe structure, on one hand, the distribution of temperature fields inside the heat pipe is changed, and on the other hand, the distribution of temperature fields on the cold fluid side of a flow channel in the heat pipe is changed as well.
Description
Technical field
The utility model belongs to technical field of heat exchange, especially belongs to a kind of design and manufacturing technology field of high-performance heat transfer components, particularly a kind of design of heat pipe and manufacture.
Background technology
Heat pipe is fill with working media and utilize the decalescence of medium and the high efficient heat exchanging element that heat exchange is carried out in heat release in the shell sealing.Heat pipe is made up of the outer fin of shell, end cap and shell periphery, fills with appropriate working media in shell; One end of heat pipe is evaporator section or bringing-up section, and the other end is condensation segment or cooling section, need to can arrange adiabatic section two sections of centres according to application.Working media carburation by evaporation in the time that one end of heat pipe is heated, steam flows to the other end and emits heat and condense into liquid under small pressure reduction, and liquid flows back to evaporator section again.So circulation, heat is reached separately-is held by one end of heat pipe.When bringing-up section under, cooling section is upper, when heat pipe is vertical placement, the backflow of hydraulic fluid can meet completely by gravity, this heat pipe is called gravity assisted heat pipe.
The work of heat pipe, mainly to conduct heat by means of the phase transformation of medium in pipe, no matter be at evaporator section or at condensation segment, all that in pipe, medium has passed through secondary heat convection, a heat conduction and heat medium or the process of carrying out heat exchange with heated medium, existing heat pipe is a kind of heat transfer element efficiently, its high efficiency is embodied in axial thermal conductivity function admirable, but in the time that heat pipe heat flux increases, in pipe under high vapor (steam) velocity, the raising of entrainment limit restriction gravity type heat pipe heat transfer property, to further improve adopting heat pipes for heat transfer performance, need the structure of opposite heat tube to improve.
Summary of the invention
The utility model discloses a kind of cross-current type gravity assisted heat pipe structure according to the deficiencies in the prior art.Problem to be solved in the utility model is the distribution that the cross-current type heat pipe structure by proposing changes inside heat pipe temperature field, thereby change the pressure field of steam and condensation reflux liquid, reduce liquid vapour shearing force in gravity type heat pipe, the final entrainment limit that improves heat pipe, and a kind of novel heat pipe structure proposing.
The utility model is achieved through the following technical solutions:
Cross-current type gravity assisted heat pipe, comprises shell, liquid storage cylinder and end cap, it is characterized in that: described liquid storage cylinder is the annular chamber of sealing, and there is the fluid passage of axial perforation at heat pipe center.
Described end cap is annular end cap.
In described liquid storage cylinder, be filled with the working solution of chamber cumulative volume 25 to 30%.
The utility model helpfulness: the utility model cross-current type gravity assisted heat pipe adopts annular liquid storage cylinder, the fluid passage that is provided with axial perforation at heat pipe center forms described cross-current type formula structure; Cross-current type inside heat pipe condensation reflux liquid refluxes via the annular housing internal face contacting with cold fluid, reduce and make phegma not enter evaporator section to be carried secretly in rising steam because conventional heat pipe tube wall is overheated, the heat flux that cross-current type heat pipe can transmit under same filling amount is high compared with conventional heat pipe; Cross-current type heat pipe structure changes the distribution in inside heat pipe temperature field, also the temperature field that has changed on the other hand heat pipe inner flow passage cold flow side distributes, tradition gravity type heat pipe is isolated cold fluid and hot fluid by dividing plate and is reached sealing effectiveness in heat exchanger complete machine, dividing plate leakage occurs in inside and is difficult to be discovered, the development of dividing plate sealing property restriction conventional heat pipe heat exchanger.Cross-flow gravity assisted heat pipe in the middle of the cold fluid and hot fluid by be full of heat-pipe working medium annular housing isolation, under the heat transfer boundary condition that must avoid cold fluid and hot fluid contact, have application advantage, and the leakage that participates in the cold fluid and hot fluid of heat exchange is easily found.
Brief description of the drawings
Fig. 1 is that the utility model cross-current type gravity heat is analysed and observe perspective view;
Fig. 2 is the hot cross-sectional plane structural representation of the utility model cross-current type gravity.
In figure, the 1st, fluid passage, the 2nd, inwall, the 3rd, liquid storage cylinder, the 4th, shell, the 5th, end cap, R is hot fluid, C is cold fluid.
Detailed description of the invention
Below by embodiment, the utility model is conducted further description; the present embodiment is only for being further detailed the utility model; but can not be interpreted as the restriction to the utility model protection domain, those skilled in the art makes some nonessential improvement according to content of the present utility model and adjustment belongs to the scope that the utility model is protected.
In conjunction with Fig. 1 and Fig. 2.
As shown in the figure, cross-current type gravity assisted heat pipe, comprises shell 4, liquid storage cylinder 3 and end cap 5, and liquid storage cylinder 3 is annular chambers of sealing, and there is the fluid passage 1 of axial perforation at heat pipe center.
End cap 5 is annular end caps.In liquid storage cylinder 3, be filled with the working solution of chamber cumulative volume 25 to 30%.
In the utility model cross-current type heat pipe, cold fluid flows through from cross-current type heat pipe center flow channels passage 1, and hot fluid heats by working media in opposite heat tube pipe outside heat pipe, and in heat pipe, medium evaporates and condensation in heat pipe annular liquid storage cylinder 3.
Cross-current type inside heat pipe condensation reflux liquid is via 2 backflows of annular liquid storage cylinder 3 body inwall that contact with cold fluid, reduce and make phegma not enter evaporator section to be carried secretly in rising steam because conventional heat pipe tube wall is overheated, the heat flux that cross-current type heat pipe can transmit under same filling amount is high compared with conventional heat pipe.
Cross-current type heat pipe structure changes the distribution in inside heat pipe temperature field, also the temperature field that has changed on the other hand heat pipe inner flow passage cold flow side distributes, can also add after the helical fin with certain angle in cold fluid pass 1 side, the collaborative degree in temperature velocity field that makes it more traditional gravity assisted heat pipe is high.
Tradition gravity type heat pipe is isolated cold fluid and hot fluid by dividing plate and is reached sealing effectiveness in heat exchanger complete machine, and dividing plate leakage occurs in inside and is difficult to be discovered, the development of dividing plate sealing property restriction conventional heat pipe heat exchanger.Cross-flow gravity assisted heat pipe in the middle of the cold fluid and hot fluid by be full of heat-pipe working medium annular housing isolation, under the heat transfer boundary condition that must avoid cold fluid and hot fluid contact, have application advantage, and the internal leakage of heat exchange of heat pipe is easily found.
Claims (3)
1. a cross-current type gravity assisted heat pipe, comprises shell (4), liquid storage cylinder (3) and end cap (5), it is characterized in that: described liquid storage cylinder (3) is the annular chamber of sealing, and there is the fluid passage (1) of axial perforation at heat pipe center.
2. cross-current type gravity assisted heat pipe according to claim 1, is characterized in that: described end cap (5) is annular end cap.
3. cross-current type gravity assisted heat pipe according to claim 1 and 2, is characterized in that: the working solution that is filled with chamber cumulative volume 25 to 30% in described liquid storage cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842265.7U CN203687711U (en) | 2013-12-19 | 2013-12-19 | Cross flow type gravity assisted heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842265.7U CN203687711U (en) | 2013-12-19 | 2013-12-19 | Cross flow type gravity assisted heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687711U true CN203687711U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320842265.7U Expired - Fee Related CN203687711U (en) | 2013-12-19 | 2013-12-19 | Cross flow type gravity assisted heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288899A (en) * | 2015-06-03 | 2017-01-04 | 江苏宏力光电科技有限公司 | A kind of hollow heat pipe |
| CN107144162A (en) * | 2017-07-18 | 2017-09-08 | 青岛大学 | A kind of gravity assisted heat pipe of the annular component of band |
-
2013
- 2013-12-19 CN CN201320842265.7U patent/CN203687711U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288899A (en) * | 2015-06-03 | 2017-01-04 | 江苏宏力光电科技有限公司 | A kind of hollow heat pipe |
| CN107144162A (en) * | 2017-07-18 | 2017-09-08 | 青岛大学 | A kind of gravity assisted heat pipe of the annular component of band |
| CN107144162B (en) * | 2017-07-18 | 2023-04-28 | 青岛大学 | Gravity assisted heat pipe with annular components |
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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: 20140702 Termination date: 20201219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |