CN110145952A - A kind of high-temperature heat pipe - Google Patents
A kind of high-temperature heat pipe Download PDFInfo
- Publication number
- CN110145952A CN110145952A CN201910402352.2A CN201910402352A CN110145952A CN 110145952 A CN110145952 A CN 110145952A CN 201910402352 A CN201910402352 A CN 201910402352A CN 110145952 A CN110145952 A CN 110145952A
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- China
- Prior art keywords
- newel
- sucking core
- heat pipe
- liquid
- working medium
- 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
- F28D15/046—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 characterised by the material or the construction of the capillary structure
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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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of high-temperature heat pipes, the heat pipe structure are as follows: silk screen liquid-sucking core is arranged on the inner wall of main thermotube shell, newel is arranged in main thermotube shell inside center, in cavity between the centrally disposed column of working medium and silk screen liquid-sucking core, groove liquid sucking core is arranged in newel surface, and newel is the frustum of a cone or conical structure.The present invention attaches silk screen liquid-sucking core in heat pipe package inner wall, and center column outer wall has groove liquid sucking core, while can produce complementary effect there are two types of liquid-sucking core；Newel is in circular cone or circular cone structure, has certain taper, this is conducive to the reflux of groove liquid sucking core working medium, to reduce entrainment limit；Since center column outer wall is provided with conduit, and conduit size is smaller, and there are many quantity, this just greatly extends the surface area of newel, so that newel can also be used as heat transfer path well, not only contributes to increase heat output, and be conducive to the starting of heat pipe.
Description
Technical field
The invention belongs to hot pipe technique fields, and in particular to a kind of high-temperature heat pipe.
Background technique
Heat pipe is the heat transfer element with extra high heating conduction that 2O grows up the sixties in century, its structure
It is fairly simple, shell use metal tube, inner wall attach liquid-sucking core, with using capillary force make working fluid in liquid-sucking core not by
The limitation of heat pipe position and move.Shell both ends are shut, and will first be vacuumized in pipe before shutting, are poured into working solution appropriate, work
The working solution of bringing-up section is heated when making, and working solution is evaporated to gas, warm section of gas, radiating segment is flowed to, in radiating segment, work
It is cooled to make liquid steam, is condensed into liquid, releases heat, passes to the outer object of pipe.Accumulate in the condensation in radiating segment liquid-sucking core
Liquid reabsorbs heat of vaporization back to bringing-up section by the effect of liquid-sucking core capillary force.This circulation of working solution just heat from
Bringing-up section is transmitted to radiating segment, realizes almost without the thermally conductive of the temperature difference.High-temperature heat pipe is one kind of heat pipe, has operating temperature
High, the advantages that heat-transfer capability is strong, at low cost, long transmission distance.High-temperature heat pipe generally using alkali metal potassium, sodium, lithium etc. as working medium,
Running temperature is at 500 DEG C or more.
As described above, the basic principle of heat pipe work is exactly the phase-change heat transfer of working medium, i.e. liquid-vapor-liquid circulation
Process.Steam condensing reflux leans on the capillary force of liquid-sucking core to act on completely, and the type of liquid-sucking core has silk screen, conduit, sintering and answers
Liquid sucting core structure is closed, every kind has respective feature and advantage.Silk screen liquid-sucking core has structure simple, easily manufactured, at low cost
Honest and clean advantage, but there are the elasticities that liquid flowing resistance is rolled by silk screen to be influenced, and has between stratum reticulare and between silk screen and tube wall
Gap and the disadvantage for causing thermal resistance larger.The characteristics of axial-grooved heat pipe is: radial direction thermal resistance is small, the heat between wall surface and liquid sucting core structure
Resistance is smaller, and suitability for secondary processing is good, is not in that liquid sucting core structure and wall surface are removed even in the process such as bending, flattening
Obscission, to keep good heat transfer capacity.Since the slot size of groove-type liquid-sucking core is compared to silk screen and sintered wicks
Pore-size is much bigger, therefore its capillary pressure very little, but its permeability and thermal conductivity are very high simultaneously.For length compared with
Big heat pipe, it is difficult to slot in inner wall, and cost can be very high, and since gas-liquid contact face is larger, in air velocity
When larger, it is easy to entrainment limit occur.
The common liquid-sucking core of high-temperature heat pipe is silk screen liquid-sucking core, as described above, silk screen liquid-sucking core has the biggish defect of thermal resistance.
Most high-temperature heat pipes only use single liquid sucting core structure, this is just easy to so that high-temperature heat pipe has fixed a certain kind to lack
It falls into.
Summary of the invention
In view of the above-mentioned problems, the high-temperature heat pipe can not only improve working medium the object of the present invention is to provide a kind of high-temperature heat pipe
Reflux efficiency, and facilitate the starting of heat pipe.
To achieve the above object, the present invention takes following technical scheme: a kind of high-temperature heat pipe, including a main thermotube shell,
Silk screen liquid-sucking core, newel, working medium, working medium intake and groove liquid sucking core, the silk screen liquid-sucking core are arranged in main heat pipe shell
On the inner wall of body, newel is arranged between main thermotube shell inside center, the centrally disposed column of working medium and silk screen liquid-sucking core
In cavity, groove liquid sucking core is arranged in newel surface, and newel is the frustum of a cone or conical structure, is located at newel first end side
To main thermotube shell on also set up working medium intake, working medium is introduced by working medium intake into cavity, newel first end
Diameter is greater than newel second end diameter.
Compared with prior art, the invention has the following advantages:
(1) a kind of high-temperature heat pipe of the invention, heat pipe package inner wall attach silk screen liquid-sucking core, and center column outer wall has groove liquid sucking
Core, while can produce complementary effect there are two types of liquid-sucking core.
(2) a kind of high-temperature heat pipe of the invention, newel are in circular cone or circular cone structure, have certain taper, this has
Conducive to the reflux of groove liquid sucking core working medium, to reduce entrainment limit.
(3) a kind of high-temperature heat pipe of the invention, since center column outer wall is provided with conduit, and conduit size is smaller, quantity
Very much, this surface area for just greatly extending newel not only has so that newel can also be used as heat transfer path well
Conducive to increase heat output, and be conducive to the starting of heat pipe.
(4) a kind of high-temperature heat pipe of the invention, structure is simple, is not necessarily to spare system, thus applicability is wider.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high-temperature heat pipe of the present invention.
Fig. 2 is the Section A-A schematic diagram of high-temperature heat pipe of the present invention.
Fig. 3 is the structural schematic diagram of high-temperature heat pipe newel of the present invention.
Fig. 4 is the structural schematic diagram of groove liquid sucking core of the present invention, a rectangular duct, b triangle grooves, c swallow tail shaped slot
Road, the trapezoidal conduit of d, e Ω shape conduit.
Wherein Symbol explanation: 1- thermotube shell, 2- silk screen liquid-sucking core, 3- newel, 4- working medium, 5- working medium intake, 6-
Groove liquid sucking core.
Specific embodiment
In order to which technical spirit and beneficial effect of the invention is more clearly understood, applicant is below with embodiment
Mode elaborate, but be not limitation to the present invention program, any structure according to the present invention to the description of embodiment
What think of was made is only in form and the equivalent transformation of unsubstantiality is regarded as technical solution of the present invention scope.
As shown in Figure 1, the present invention provides a kind of high-temperature heat pipe, including a main thermotube shell 1, silk screen liquid-sucking core 2, newel
3, working medium 4, working medium intake 5 and groove liquid sucking core 6.One main thermotube shell 1, silk screen liquid-sucking core 2, newel 3, working medium 4, work
Matter intake 5 and groove liquid sucking core 6.The silk screen liquid-sucking core 2 sticks on the inner wall of main thermotube shell 1, and newel 3 is arranged
At main 1 inner hub location of thermotube shell, in the cavity between the centrally disposed column 3 of working medium 4 and silk screen liquid-sucking core 2, and with
Groove liquid sucking core 6 is arranged in newel 3 and the fitting setting of silk screen liquid-sucking core 2,3 surface of newel, and newel 3 is the frustum of a cone or circular cone
Shape structure, from left to right, the left side is condensation segment to Fig. 1, and the right is evaporator section, i.e., the biggish first end of 3 basal diameter of newel is
Condensation segment, the lesser second end of 3 basal diameter of newel are evaporator section.It is located on that one end of condensation segment in main thermotube shell 1 and sets
Working medium intake 5 is set, working medium 4 is introduced by working medium intake 5 into cavity.By being vacuumized to working medium intake 5 before introducing.
In a specific embodiment of the invention, the working medium 4 can be potassium, sodium, lithium, silver, mercury etc..
In a specific embodiment of the invention, the groove liquid sucking core 6 can be rectangle, trapezoidal, triangle,
The shapes such as Ω shape, swallow-tail form.
In a specific embodiment of the invention, the groove liquid sucking core 6 is set along the axial direction of newel 3
It sets.
In a specific embodiment of the invention, main thermotube shell 1 is hollow cylindrical structure.
Working principle: high-temperature heat pipe proposed by the present invention increases newel 3 inside main thermotube shell 1.Due to conduit
6 heat-transfer capability of liquid-sucking core is big, radial direction thermal resistance is small, porosity is big, flow resistance is small, but is limited by working ability, conduit size compared with
Greatly, therefore capillary force is smaller, is easy to appear entrainment limit.So newel 3 is designed as truncated cone, use gravity to increase
Capillary force.In addition, due to 6 radial direction thermal resistance very little of groove liquid sucking core, it can be quickly by the heat transfer of steam to newel
3, and newel 3 can choose the preferable material of heat-transfer capability (such as red copper), this, which allows for newel, also becomes heat transfer medium.?
When high-temperature heat pipe starts, the heat transfer of newel 3 is highly beneficial to the starting of high-temperature heat pipe.
Claims (8)
1. a kind of high-temperature heat pipe, which is characterized in that including main thermotube shell, silk screen liquid-sucking core, newel, working medium and groove liquid sucking
Core, silk screen liquid-sucking core are arranged on the inner wall of main thermotube shell, and newel setting is in main thermotube shell inside center, working medium setting
In cavity between newel and silk screen liquid-sucking core, groove liquid sucking core is arranged in newel surface, and newel is the frustum of a cone or circle
Pyramidal structure.
2. high-temperature heat pipe as described in claim 1, which is characterized in that also set up working medium intake in main thermotube shell, pass through
Working medium intake introduces working medium into cavity.
3. high-temperature heat pipe as described in claim 1, which is characterized in that be arranged in the main thermotube shell for being located at condensation segment one end
Working medium intake.
4. high-temperature heat pipe as described in claim 1, which is characterized in that working medium is potassium, sodium, lithium, silver, any one in mercury.
5. high-temperature heat pipe as described in claim 1, which is characterized in that the groove liquid sucking core is rectangle, trapezoidal, triangle
Shape, Ω shape, any one shape in swallow-tail form.
6. high-temperature heat pipe as described in claim 1, which is characterized in that axial direction of the groove liquid sucking core along newel
Setting.
7. high-temperature heat pipe as described in claim 1, which is characterized in that newel material is red copper.
8. high-temperature heat pipe as described in claim 1, which is characterized in that main thermotube shell is cylindrical-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402352.2A CN110145952A (en) | 2019-05-15 | 2019-05-15 | A kind of high-temperature heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402352.2A CN110145952A (en) | 2019-05-15 | 2019-05-15 | A kind of high-temperature heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145952A true CN110145952A (en) | 2019-08-20 |
Family
ID=67595367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910402352.2A Pending CN110145952A (en) | 2019-05-15 | 2019-05-15 | A kind of high-temperature heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145952A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203311A (en) * | 2021-04-26 | 2021-08-03 | 清华大学 | High-temperature heat pipe capable of being started quickly |
Citations (8)
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|---|---|---|---|---|
| SU800577A1 (en) * | 1979-04-24 | 1981-01-30 | Всесоюзный Научно-Исследователь-Ский Биотехнический Институт | Heat pipe |
| KR20010058223A (en) * | 1999-12-27 | 2001-07-05 | 오길록 | Pressed type heat pipe having a woven-wired wick that is located at center of pipe |
| CN2735283Y (en) * | 2004-09-15 | 2005-10-19 | 大连熵立得传热技术有限公司 | Heat pipe heat column with conical wick |
| CN201177470Y (en) * | 2008-01-25 | 2009-01-07 | 淄博兰雁集团有限责任公司 | Double channel type hot pipe for textile |
| CN101566441A (en) * | 2008-11-10 | 2009-10-28 | 苏州大学 | Method and device for heat transfer |
| CN102278904A (en) * | 2011-07-29 | 2011-12-14 | 华北电力大学 | Internal liquid-dividing hood-type condensed heat-exchanging pipe |
| CN104296570A (en) * | 2014-10-17 | 2015-01-21 | 中国石油大学(华东) | Heat pipe |
| CN208059649U (en) * | 2018-03-22 | 2018-11-06 | 华北电力大学 | A kind of heat-pipe apparatus based on reduction thickness of liquid film |
-
2019
- 2019-05-15 CN CN201910402352.2A patent/CN110145952A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU800577A1 (en) * | 1979-04-24 | 1981-01-30 | Всесоюзный Научно-Исследователь-Ский Биотехнический Институт | Heat pipe |
| KR20010058223A (en) * | 1999-12-27 | 2001-07-05 | 오길록 | Pressed type heat pipe having a woven-wired wick that is located at center of pipe |
| CN2735283Y (en) * | 2004-09-15 | 2005-10-19 | 大连熵立得传热技术有限公司 | Heat pipe heat column with conical wick |
| CN201177470Y (en) * | 2008-01-25 | 2009-01-07 | 淄博兰雁集团有限责任公司 | Double channel type hot pipe for textile |
| CN101566441A (en) * | 2008-11-10 | 2009-10-28 | 苏州大学 | Method and device for heat transfer |
| CN102278904A (en) * | 2011-07-29 | 2011-12-14 | 华北电力大学 | Internal liquid-dividing hood-type condensed heat-exchanging pipe |
| CN104296570A (en) * | 2014-10-17 | 2015-01-21 | 中国石油大学(华东) | Heat pipe |
| CN208059649U (en) * | 2018-03-22 | 2018-11-06 | 华北电力大学 | A kind of heat-pipe apparatus based on reduction thickness of liquid film |
Non-Patent Citations (2)
| Title |
|---|
| 乔清超: "《采暖工程及小型锅炉房设计手册（下册）》", 30 November 1985, 吉林科学技术出版社 * |
| 李崇祥: "《节能原理与技术》", 31 March 2004, 西安交通大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203311A (en) * | 2021-04-26 | 2021-08-03 | 清华大学 | High-temperature heat pipe capable of being started quickly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |