CN107144162A - A kind of gravity assisted heat pipe of the annular component of band - Google Patents
A kind of gravity assisted heat pipe of the annular component of band Download PDFInfo
- Publication number
- CN107144162A CN107144162A CN201710583759.0A CN201710583759A CN107144162A CN 107144162 A CN107144162 A CN 107144162A CN 201710583759 A CN201710583759 A CN 201710583759A CN 107144162 A CN107144162 A CN 107144162A
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- CN
- China
- Prior art keywords
- annular component
- evaporator section
- gravity assisted
- heat pipe
- condensation segment
- 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
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- 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
-
- 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
- F28D2015/0216—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 having particular orientation, e.g. slanted, or being orientation-independent
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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
It is more particularly to a kind of that the gravity assisted heat pipe of condensation thickness is thinned by changing structural pipe wall the present invention relates to a kind of new and effective heat exchanger gravity assisted heat pipe, belong to technical field of heat exchange, gravity assisted heat pipe is made up of evaporator section, three regions of soaking zone and condensation segment.When gravity assisted heat pipe works, working medium is heated to be evaporated to up to condensation segment in wall one thick layer liquid film of formation, is increased thermal resistance and is seriously hindered heat exchange.The present invention is exactly to change wall structure by adding annular component in pipe so as to thinned liquid film.The addition of evaporator section annular component causes evaporator section liquid film to be uniformly distributed, and realizes falling film evaporation；Liquid film is thinned in the addition of condensation segment annular component, strengthens condensing heat-exchange.The addition of annular component adds the heat exchange area augmentation of heat transfer of condensation segment and evaporator section simultaneously, and the arrangement of evaporator section component in addition can also solve to cause the problem of liquid overflowed comes back to liquid pool because liquid film is blocked up, it is to avoid hot and cold air, which crosses, influences heat transfer.
Description
Technical field
The present invention relates to a kind of new and effective heat exchanger gravity assisted heat pipe, it is more particularly to a kind of by change structural pipe wall come
The gravity assisted heat pipe of condensation thickness is thinned, belongs to technical field of heat exchange.
Background technology
Two hang-ups that current heat transfer engineering faces：Study high heat-insulating material and highly heat-conductive material.But the tool being currently known
The Heat Conduction Material thermal conductivity factor for having thermal conductive resin can only achieve 102W/m DEG C of the order of magnitude, far can not meet some engineerings
The need for upper flash heat transfer.The invention of heat pipe just solves this problem, and its heat transfer coefficient is the hundreds of of common metal material
Times so thousands of times, substantial amounts of heat can be at a distance transmitted without additionaling power by the sectional area of very little.Wherein
The gravity assisted heat pipe outstanding advantages such as have heat transfer efficiency high, simple in construction, with low cost.
But, because a variety of factor heat exchange efficiencies are not high when gravity assisted heat pipe works, such as hot and cold air relative motion shape
Into liquidating, the mixed process of a unnecessary cold and hot steam is added in gravity assisted heat pipe, the operation of hot and cold air is added
Drag effects are conducted heat.Further, since condensation segment internal face heat exchange area is limited, especially working medium is heated when being evaporated to up to condensation segment
A thick layer liquid film can be formed in wall, thermal resistance is increased and seriously hinders heat exchange.Therefore the key of reinforcing heat pipe heat exchanging exists
In promoting the inwall of condensation segment to exchange heat and reduce the thickness of condensate film.Film condensation is used as one kind of condensation process, its feature
It is condensation liquid energy formation liquid film and complete wetting wall, liquid film is more long-pending thicker, and unnecessary condensate liquid is just flowed down along wall.Due to heat pipe
All the time one layer of liquid film is covered with inwall, the heat transfer between wall and the steam that is condensed encounters resistance, so heat transfer efficiency is relatively low
In dropwise condensation.
In published patent, " Multi-thread spiral channel heat-exchanging "（ZL00250108.2）Belong to ripple tubing, existing spiral shell
Line heat exchanger tube strengthens heat exchange by increasing heat exchange area and tube fluid is produced disturbance, although improves heat exchange efficiency but is easier to
Fouling, and for augmentation of heat transfer spiral component because processing efficiency is relatively low or manufacturing process is complicated, its manufacturing expense phase
To higher." a kind of gravity assisted heat pipe augmentation of heat transfer structure "（CN203534295U）By set guide shell strengthen heat transfer, by
Gravity assisted heat pipe inner chamber addition guide shell reduce the gravity assisted heat pipe course of work in hot and cold air liquidate problem improve heat transfer efficiency, structure
Simple but heat exchange efficiency improves little.And the two can not solve the problem of heat exchange efficiency that causes due to liquid film is low.For liquid
The liquid resistance problem that film is caused, existing solution is typically that the thickness of liquid film is reduced using pod and ripple.Condensing wall
By the tension force effect of liquid surface, condensate liquid is set to concentrate on the bottom of groove so that the thickness of liquid film is thinning.Another side
Case is to become film condensation into dropwise condensation, the hydrophobic material or a small amount of oiliness is added in steam adds on coating wall
Thing, but all can not muchly keep dropwise condensation.In addition, " a kind of augmentation of heat transfer gravity assisted heat pipe "（CN104197761A）Pass through
The method for sweeping liquid device enhanced heat exchange is added in gravity assisted heat pipe, it is complicated to be unfavorable for promoting.
The content of the invention
The problem of task of the present invention is for the accumulation increase condensation thermal resistance influence heat exchange of gravity assisted heat pipe condensation segment liquid film,
Annular component is added by the tube wall to gravity assisted heat pipe, condensed fluid is discharged in time, so that steam, which is thinned, is condensate in tube wall
The condensate film thickness of formation, so as to reach the purpose for strengthening gravity assisted heat pipe heat exchange；Meanwhile, in order to which the evaporation of enhanced water evaporation section is changed
Heat, has installed the annular component with cloth liquid function additional in evaporator section, the liquid that condensation segment flows down is evenly distributed
On the evaporation and heat-exchange face of heat pipe evaporator section, falling film evaporation is realized, so that enhanced water evaporation heat transfer process.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of gravity assisted heat pipe of the annular component of band, including it is arranged at gravity assisted heat pipe inwall condensation segment multi-stage annular component and steaming
Section multi-stage annular component is sent out, condensation segment multi-stage annular component inner side is both the decline passway of liquid working substance, is from steaming again
Send out the rising passway of section refrigerant vapor；It is tightly connected on the outside of condensation segment multi-stage annular component with gravity assisted heat pipe internal chamber wall, so as to
Wall is left in condensate liquid to flow out on the inside of condensation segment multi-stage annular component, condensation is being thinned in condensation segment multi-stage annular component
While liquid film strengthens condensing heat-exchange, condensing heat-exchange area is extended, with dual heat conduction reinforced effect；Evaporator section multistage ring
The gap of cloth liquid is left on the outside of shape component with gravity assisted heat pipe inwall junction, the decline passway of liquid refrigerant is formed, in order to
Liquid film is relatively evenly distributed on heat pipe evaporator section internal chamber wall, is realized on the inside of falling film evaporation, evaporator section multi-stage annular component
For the rising passway of working substance steam, evaporator section multi-stage annular component also increases evaporation and heat-exchange area.
Described multi-stage annular component includes condensation segment multi-stage annular component and evaporator section multi-stage annular component two
Class.Change condensing wall structure by adding the annular component of condensation segment in pipe, so that liquid is discharged from wall in time, subtract
Thin liquid film, strengthens condensing heat-exchange；Change evaporation wall structure by adding the annular component of evaporator section in pipe, realize that falling liquid film steams
Hair, strengthens evaporation and heat-exchange.Meanwhile, the addition of annular component also increases the heat exchange area of condensation segment and evaporator section, serves
The effect of augmentation of heat transfer.In addition, being fixed between the annular component and tube wall of gravity assisted heat pipe by being interference fitted, heat pipe is solved
The problem of being inside not easy welding, process for integrally manufacturing is simple, and processing efficiency is higher, with low cost.
Brief description of the drawings
Fig. 1 is the gravity assisted heat pipe structural representation of the annular component of band of the embodiment of the present invention.
Evaporator section Annular Element device junction employed in gravity assisted heat pipes of the Fig. 2 for the annular component of band of the embodiment of the present invention
Structure schematic diagram.
Condensation segment Annular Element device junction employed in gravity assisted heat pipes of the Fig. 3 for the annular component of band of the embodiment of the present invention
Structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, technical scheme is illustrated.
Referring to Fig. 1, and combine Fig. 2 and Fig. 3, a kind of gravity assisted heat pipe of the annular component of band, including housing 1, condensation segment 2,
Evaporator section 3, soaking zone 7, technique mouthfuls 11 and n evaporator section annular component 4 installed in evaporator section 3 and installed in condensation segment 2
The annular component 8 of n condensation segment.Evaporator section annular component is arranged as required to n, and condensation segment annular component is according to need
N are set, n is the integer more than or equal to 1.Condensation segment annular component 10 is fixed with the tube wall of condensation segment 2 by being interference fitted
Together.Condensation segment annular component 10 medial center hole is both the decline passway of liquid working substance, is to come from the working medium of evaporator section 3 again
The rising passway of steam；The gap of cloth liquid is left in the outside of evaporator section annular component 6 with gravity assisted heat pipe inwall junction, forms liquid
The decline passway of state working medium, in order to which liquid film is relatively evenly distributed on the internal chamber wall of heat pipe evaporator section 3, evaporator section Annular Element device
The medial center hole of part 6 is the rising passway of heat-pipe working medium steam.Each annular component 10 of condensation segment uses identical result chi
It is very little, it would however also be possible to employ the bigger center of the upper annular component 10 of departmental level condensation segment component 9 more annular than lower departmental level condensation segment
Hole size, not interfere with the annular component upper liquid of one-level on the lower when ensureing that condensed fluid is flowed down from the annular component of top one-level
The discharge of film.The center of the annular component 6 of each evaporator section annular component 5 of one-level component 6 more annular than top one-level on the lower
Hole is smaller, or sets overfolw hole 12 on the top in addition to the one-level of bottom is per one-level evaporator section annular component 6, so that top
Liquid working substance in the annular component 6 of every grade of evaporator section can flow into the annular component 5 of evaporator section of bottom by overflow.
Liquid working substance evaporates in evaporator section 3, and reaching condensation segment 2 by soaking zone condenses, and passes through the annular component of condensation segment
10 are thinned liquid film reinforcing condensing heat-exchange, and condensate liquid is reached in the annular component 6 of evaporator section by gravity, and completes evaporator section liquid film
Cloth liquid, enhanced water evaporation heat exchange.Evaporator section annular component 6 outside is processed to zigzag, evaporator section annular component 6 with again
The logical interference fit of the internal face of power heat pipe evaporator section 3 is fixed, the aperture formed between the gap and gravity assisted heat pipe inwall between sawtooth
The decline passway of liquid refrigerant falling film evaporation is formed, to ensure to evaporate being uniformly distributed for liquid film, enhanced heat exchange effect.
Claims (2)
1. a kind of gravity assisted heat pipe augmentation of heat transfer structure, it is characterised in that：Multistage including being arranged at gravity assisted heat pipe inwall condensation segment
The multi-stage annular component of annular component and evaporator section, evaporator section annular component is arranged as required to n, condensation segment annular
Component is arranged as required to n, and n is the integer more than or equal to 1, and condensation segment annular component 10 passes through with the tube wall of condensation segment 2
Interference fit is fixed together, and condensation segment annular component 10 medial center hole is both the decline passway of liquid working substance, is come again
The rising passway of spontaneous evaporation 3 refrigerant vapors of section；The outside of evaporator section annular component 6 is processed to zigzag, evaporator section Annular Element
Device 6 leads to interference fit with the internal face of gravity assisted heat pipe evaporator section 3 to be fixed, in the outside of evaporator section annular component 6 and gravity assisted heat pipe
Leave the keyhole formation liquid refrigerant formed between the gap between the gap of cloth liquid, sawtooth and gravity assisted heat pipe inwall in wall junction
The decline passway of falling film evaporation, evaporator section annular component 6 medial center hole is the rising passway of heat-pipe working medium steam.
2. according to the gravity assisted heat pipe augmentation of heat transfer mechanism described in claims 1, it is characterised in that：The annular component is round platform
Hull shape component, the annular component 10 of each condensation segment uses identical result size, it would however also be possible to employ upper departmental level is cold
The bigger central hole size of the solidifying annular component 10 of section component 9 more annular than lower departmental level condensation segment；Each evaporator section ring
The annular component 5 of one-level is more smaller than the centre bore of top one-level annular component 6 on the lower for shape component 6, or except bottom one
Top outside level sets overfolw hole 12 per one-level evaporator section on annular component 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583759.0A CN107144162B (en) | 2017-07-18 | 2017-07-18 | Gravity assisted heat pipe with annular components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583759.0A CN107144162B (en) | 2017-07-18 | 2017-07-18 | Gravity assisted heat pipe with annular components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107144162A true CN107144162A (en) | 2017-09-08 |
| CN107144162B CN107144162B (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710583759.0A Active CN107144162B (en) | 2017-07-18 | 2017-07-18 | Gravity assisted heat pipe with annular components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107144162B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513934A (en) * | 2021-06-30 | 2021-10-19 | 西安交通大学 | Gravity heat pipe based on double-power-driven enhanced heat transfer |
| CN115790219A (en) * | 2022-11-22 | 2023-03-14 | 山东大学 | Ultra-long gravity heat pipe device for extracting geothermal energy in waste oil-gas well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027487A (en) * | 1999-07-14 | 2001-01-30 | Furukawa Electric Co Ltd:The | Gravity type heat pipe |
| CN102455141A (en) * | 2010-10-21 | 2012-05-16 | 昆明东院制冷工程有限责任公司 | Two-glass-cavity normal-temperature gravity heat pipe |
| US20140138861A1 (en) * | 2011-07-29 | 2014-05-22 | Hongxia Chen | Internal liquid separating hood-type condensation heat exchange tube |
| CN203687711U (en) * | 2013-12-19 | 2014-07-02 | 西华大学 | Cross flow type gravity assisted heat pipe |
| CN207006956U (en) * | 2017-07-18 | 2018-02-13 | 青岛大学 | A kind of gravity assisted heat pipe of band annular component |
-
2017
- 2017-07-18 CN CN201710583759.0A patent/CN107144162B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027487A (en) * | 1999-07-14 | 2001-01-30 | Furukawa Electric Co Ltd:The | Gravity type heat pipe |
| CN102455141A (en) * | 2010-10-21 | 2012-05-16 | 昆明东院制冷工程有限责任公司 | Two-glass-cavity normal-temperature gravity heat pipe |
| US20140138861A1 (en) * | 2011-07-29 | 2014-05-22 | Hongxia Chen | Internal liquid separating hood-type condensation heat exchange tube |
| CN203687711U (en) * | 2013-12-19 | 2014-07-02 | 西华大学 | Cross flow type gravity assisted heat pipe |
| CN207006956U (en) * | 2017-07-18 | 2018-02-13 | 青岛大学 | A kind of gravity assisted heat pipe of band annular component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513934A (en) * | 2021-06-30 | 2021-10-19 | 西安交通大学 | Gravity heat pipe based on double-power-driven enhanced heat transfer |
| CN115790219A (en) * | 2022-11-22 | 2023-03-14 | 山东大学 | Ultra-long gravity heat pipe device for extracting geothermal energy in waste oil-gas well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107144162B (en) | 2023-04-28 |
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