CN202216596U - Heat pipe - Google Patents
Heat pipe Download PDFInfo
- Publication number
- CN202216596U CN202216596U CN2011202135310U CN201120213531U CN202216596U CN 202216596 U CN202216596 U CN 202216596U CN 2011202135310 U CN2011202135310 U CN 2011202135310U CN 201120213531 U CN201120213531 U CN 201120213531U CN 202216596 U CN202216596 U CN 202216596U
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- China
- Prior art keywords
- heat pipe
- section
- condensation segment
- evaporator section
- heat
- 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.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model discloses a heat pipe, and relates to the technical field of solar heat collector elements. The heat pipe consists of an evaporation section, a heat insulation section, a condensation section and a phase changeable working medium poured in the pipe, wherein the evaporation section and the heat insulation section have the same diameter; the condensation section is provided with a liquid storage groove which protrudes compared with pipe walls of the evaporation section and the heat insulation section; and the liquid storage groove is used for storing a liquid-state medium. The heat pipe provided by the utility model has the characteristics of wide mounting and use inclination angle range, no pipe core, easiness in manufacturing, high heat transfer performance and low cost.
Description
Technical field
The utility model relates to solar thermal collector Element Technology field, relates in particular to a kind of full angle centreless heat pipe.
Background technology
Heat pipe is meant in the shell of sealing and is filled with working media (working medium) and utilizes the decalescence of medium and the high efficient heat exchanging element that heat exchange is carried out in heat release.Typical heat pipe; Particularly Horizontal heat pipe is made up of shell, tube core and working media; One end of pipe is evaporator section (bringing-up section); The other end is condensation segment (cooling section), in the middle of evaporator section and condensation segment, can arrange isolation section (adiabatic section) according to application need, and tube core is for making condensate liquid be back to evaporator section setting smoothly.Gravity assisted heat pipe is a kind of of heat pipe.Heat pipe in the at present domestic and international hot pipe type solar heat collector; Mostly adopt gravity assisted heat pipe; The characteristics of gravity assisted heat pipe are that heat pipe tilts or vertical the placement, its working medium circulate the influence that will receive gravity, because of evaporator section places the below; The liquid working substance of condensation is back to evaporator section by gravity up, and then the conduction transmittance process of the heat that realizes moving in circles.Working medium leans on gravity in heat pipe, to reflux, and need not to be provided with tube core, and the difficulty of processing that this has just reduced heat pipe has reduced manufacturing cost, thereby gravity assisted heat pipe is widely used in a plurality of fields, comprises solar energy heat utilization field.
Gravity assisted heat pipe requires condensation segment will be higher than evaporator section, realizes with the difference in height of condensation segment and evaporator section evaporating after the backflow of medium again.This gravity assisted heat pipe formula solar thermal collector just occurred and in application, has had inevitable defectives such as restrictive condition is many, the scope of application is narrow.For example: must make gravity assisted heat pipe and ground level form bigger angle and install and use, generally be preferably 40 to 60 ° of angles.The solar thermal collector that contains gravity assisted heat pipe long about 2 meters needs 50 ° of angles of maintenance to tilt to install and places, and its space that needs is big and the installation bracing frame is complicated.When requiring or hope that hot pipe type solar heat collector 0 angle, low-angle are installed or outside balcony balustrade, installed, gravity assisted heat pipe formula solar thermal collector is then obviously powerless.Have again; Gravity assisted heat pipe tilts to use; Particularly present solar energy gravity assisted heat pipe, the evaporator section length that is positioned at the bottom is far longer than the length of heat pipe upper top condensation segment, and phase-change liquid is because of the gravity effect in the heat pipe; Always be tending towards gathering, be unfavorable for the phase-change liquid thermally equivalent evaporation of evaporator section and inside thereof and conduct heat to condensation segment to heat pipe least significant end.Can receive under the condition of solar irradiation finite energy every day at single solar heat pipe, heat pipe evaporator section bottom always some phase-change liquid is not participated in the evaporation heat transfer process all the time.And the medium of participating in conducting heat mainly is made up of two parts: the one, and accumulate in the evaporator section bottom and lean on last operative liquid medium to receive thermal evaporation up; The 2nd, medium heat steam is met condensation knot gravitate to refluxed from condensation segment, in reflux course, receives thermal evaporation once more, turns back to that part of medium of condensation segment midway.Such working condition obviously can reduce heat conduction or heat-transfer capability and the efficient that heat pipe can be realized originally.Also have; Phase-change liquid accumulates in the evaporator section bottom, and when severe cold area did not have the sun or night, phase-change liquid was frozen in the bottom and has certain height; When the sun is good; The medium that freezes melts and expands, and causes gravity assisted heat pipe formula solar thermal collector unavoidable by the freezing phenomenon of bursting by freezing, and its root knot all is conditional request and restriction that gravity assisted heat pipe is installed and used.
In addition, along with increasing of heat pipe groundwater increment, under the condition that intensity allows, the heat energy potentiality that heat pipe can conduct also can increase.But; Groundwater increment for the solar water heating system heat pipe is too much if account for the heat pipe total measurement (volume); Will influence heat transfer properties such as heat pipe toggle speed, and summer as can not use in time that heated hot water can not guarantee that maybe the heat energy that will conduct in time discharges the time, can produce the high pressure superheater problem; So not only can quicken and cause the infringement of hot-water heating system parts, also can increase potential safety hazard.But this type of problem can be particularly outstanding in the solar water heating system of sealing pressure-bearing.
The utility model content
The technical problem that (one) will solve
The technical problem that the utility model will solve is: provide a kind of and install and use the inclination angle wide ranges, promptly have that gravity assisted heat pipe does not have that tube core processing is simple, advantages such as materials are few, cost is low, good in thermal property again can level (inclination angle is 0) work, safe and reliable full angle centreless heat pipe.
(2) technical scheme
For addressing the above problem; The utility model provides heat pipe; But this heat pipe is made up of the working media of the phase transformation of perfusion in evaporator section, isolation section, condensation segment and the pipe, it is characterized in that the diameter of said evaporator section and said isolation section is identical; Be formed with the outstanding reservoir of tube wall of more said evaporator section and said isolation section on the said condensation segment, said reservoir is used for the storing liquid medium.
Wherein, the diameter of said condensation segment is greater than the diameter of said evaporator section and said isolation section, and the outstanding part of the tube wall of more said evaporator section of said condensation segment and said isolation section forms said reservoir.
Wherein, the tube wall of said isolation section extends in the said condensation segment.
Wherein, said condensation segment local radial size is greater than the diameter of said evaporator section and said isolation section, and the outstanding part of the tube wall of more said evaporator section and said isolation section forms said reservoir on the said condensation segment.
Wherein, the axis of the axis of said condensation segment and said evaporator section and said isolation section not point-blank, the outstanding part of the tube wall of more said evaporator section and said isolation section forms said reservoir on the said condensation segment.
Wherein, the length of said condensation segment and said evaporator section ratio is 1: 30-1: between 10.
Wherein, the external diameter of said evaporator section and isolation section is less than 9 millimeters.
Wherein, when heat pipe axis and ground level are 0 ° or during less than 5 ° of inclination angles work, but the ratio that the working media of said phase transformation accounts for said heat pipe total measurement (volume) between 12%-25% and optimal proportion be 15%; When working, be 6% at 4%-8% and optimal proportion but the working media of said phase transformation accounts for the ratio of said heat pipe total measurement (volume) at 40 ° of-90 ° of inclination angles.
(3) beneficial effect
The heat pipe of the utility model, applied widely, can work being in the 0-90 ° of inclination angle scope with ground level; No tube core, caliber is little, and is simple in structure, cost of manufacture is low, and the external diameter of evaporator section and isolation section can be less than 9 millimeters, and condensation segment can be lower than evaporator section or isolation section work in the part, and condensation segment and evaporator section length are than 1: 30-1: between 10; Look applicable cases and can not be provided with isolation section, the best filling amount of heat pipe medium can be different with different use inclination angle variations.Start-up temperature is lower than 30 ℃, 0 or low-angle when using, need not to take special antifreezing measures promptly to have good freezing tolerance, and has and kept the effect of " unilateral diode " that gravity assisted heat pipe heat energy do not reflux.
In addition, in the reservoir of condensation segment, suitably keep a certain amount of liquid medium, help heat pipe condensate liquid continual " backflow "; Promoted the heat pipe inwall that the formation and the existence of moistening liquid film are arranged; Strengthened the effect of avoiding dry and avoiding reaching heat transfer deterioration point or heat transport limitation state; Improve and kept the good heat transfer capacity of heat pipe under wide in range angle operating mode etc.
Description of drawings
Fig. 1 is the heat pipe structure sketch map of embodiment 1;
Fig. 2 is the heat pipe structure sketch map of embodiment 2;
Fig. 3 is the heat pipe structure sketch map of embodiment 3;
Fig. 4 is the view of heat pipe under the low-angle operating mode according to a kind of embodiment of the utility model;
Fig. 5 is the view of heat pipe under the wide-angle operating mode according to a kind of embodiment of the utility model.
The specific embodiment
The heat pipe that the utility model proposes specifies as follows in conjunction with accompanying drawing and embodiment.
Embodiment 1
As shown in Figure 1; But the heat pipe of present embodiment is made up of the working media of the phase transformation of perfusion in evaporator section 1, isolation section 2, condensation segment 3 and the pipe; The diameter of evaporator section 1 and isolation section 2 is identical; Be formed with on the condensation segment 3 than evaporator section 1 and the outstanding reservoir 4 of the tube wall of isolation section 2, reservoir 4 is used for the storing liquid medium.
In the present embodiment, the diameter of condensation segment 3 is greater than the diameter of evaporator section 1 and isolation section 2, and like this, condensation segment 3 part outstanding than the tube wall of evaporator section 1 and isolation section 2 just forms reservoir 4, and reservoir 4 is the part of condensation segment 3 global shapes.
Preferably, the tube wall of isolation section 2 extends in the condensation segment 1, and is still can in reservoir 4, retain liquid medium when the heat pipe wide-angle tilt, as shown in Figure 5.
Embodiment 2
In the heat pipe of present embodiment; The radial dimension of condensation segment 3 parts is greater than the diameter of evaporator section 1 and isolation section 2; Promptly as shown in Figure 2; Condensation segment 3 has the part outstanding than the tube wall of evaporator section 1 and isolation section 2, and the diameter of these condensation segment 3 non-ledges equals the diameter of evaporator section 1 and isolation section 2, and the local part outstanding than the tube wall of evaporator section 1 and isolation section 2 forms reservoir 4 on the condensation segment 3.Should " part " can be a place (as shown in Figure 2) or many places, to form one or more reservoirs 4.
Embodiment 3
As shown in Figure 3; In the present embodiment; The axis of the axis of condensation segment 3 and evaporator section 1 and isolation section 2 is (condensation segment 3 can be the same or different with the diameter of evaporator section 1 and isolation section 2) not point-blank; Like this, condensation segment 3 just has than an evaporator section 1 and the outstanding part of isolation section 2 tube walls, and this ledge forms reservoir 4.
As above the description of embodiment 1-3 can be known, the evaporator section 1 of the heat pipe of the utility model, isolation section 2 and condensation segment 3 can be worked being under 0 to 90 ° of horn shape attitude with ground level.As shown in Figure 4; When in the work of 0 ° or low-angle (as 0-5 °); The part of condensation segment 3 can be lower than evaporator section 1 and isolation section 2; And have the reservoir that can have liquid medium 4 that be lower than evaporator section 1 and isolation section 2 at condensation segment 3 places this moment, is in liquid medium in the liquid medium in reservoir 4 and evaporator section 1 and the isolation section 2 and together forms liquid liquid level continuous in the heat pipe.As shown in Figure 5; When heat pipe is being when working than high inclination-angle with ground level; The liquid medium at liquid medium in this reservoir 4 and evaporator section 1 or isolation section 2 places can form and be interrupted discontinuous liquid liquid level; No matter which kind of situation leaves the space or the passage that can supply medium phase transformation steam to flow above liquid level.This reservoir 4 can be made up of the part of condensation segment 3 global shapes; Or be the specially one or more local concavity face or the grooves that can the retain liquid medium of processing on condensation segment 3; Or forms by the diameter of condensation segment 3 diameters greater than evaporator section 1 and isolation section 2, or by condensation segment 3 and evaporator section 1 and isolation section 2 axially off-centre form.The external diameter of heat pipe evaporator section 1 and isolation section 2 is less than 9 millimeters, and condensation segment 3 and evaporator section 1 length ratio are 1: 30-1: between 10.When this heat pipe when keeping 0 (level) or the work of low-angle (as 0-5 °) state with ground level, but the groundwater increment of phase change medium accounts for the 12%-25% of heat pipe total measurement (volume) in the heat pipe, the best groundwater increment of medium is 15% of a heat pipe total measurement (volume).When work in about 40 ° of-90 ° of inclination angles, medium filling amount is 4%-8%, and best filling amount is to account for 6% of heat pipe total measurement (volume).And the best filling amount of the medium of this heat pipe is different with different use inclination angle variations.
To sum up; Because the heat pipe of the utility model has no tube core, diameter is little, simple in structure, easily manufactured; Good heat-transfer, can 0-90 ° of use, and characteristics such as cost is low can be applied to be fit in the heat pipe manufacturing technology of adopting heat pipes for heat transfer; More can be used as the heat-pipe elements in the solar thermal collector, as be used as the heat pipe of solar heat tubular type vacuum tube common in the existing market or the heat pipe in the solar full-glass vacuum tube etc.; Also can be used for substituting the parts of existing solar thermal collector heat transfer products such as complex manufacturing technology, materials are many, cost is high U type pipe or straight pipe; Particularly it can make hot pipe type solar heat collector in design and installation with design of being integrally formed of building and installation, i.e. practicality is attractive in appearance again.
Above embodiment only is used to explain the utility model; And be not the restriction to the utility model; The those of ordinary skill in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to the category of the utility model, and the scope of patent protection of the utility model should be defined by the claims.
Claims (10)
1. heat pipe; But this heat pipe is made up of the working media of the phase transformation of perfusion in evaporator section, isolation section, condensation segment and the pipe; It is characterized in that; The diameter of said evaporator section and said isolation section is identical, is formed with the outstanding reservoir of tube wall of more said evaporator section and said isolation section on the said condensation segment, and said reservoir is used for the storing liquid medium.
2. heat pipe as claimed in claim 1 is characterized in that, the diameter of said condensation segment is greater than the diameter of said evaporator section and said isolation section, and the outstanding part of the tube wall of more said evaporator section of said condensation segment and said isolation section forms said reservoir.
3. heat pipe as claimed in claim 2 is characterized in that the tube wall of said isolation section extends in the said condensation segment.
4. heat pipe as claimed in claim 1 is characterized in that, said condensation segment local radial size is greater than the diameter of said evaporator section and said isolation section, and the outstanding part of the tube wall of more said evaporator section and said isolation section forms said reservoir on the said condensation segment.
5. heat pipe as claimed in claim 1; It is characterized in that; The axis of the axis of said condensation segment and said evaporator section and said isolation section not point-blank, the outstanding part of the tube wall of more said evaporator section and said isolation section forms said reservoir on the said condensation segment.
6. like each described heat pipe of claim 1-5, it is characterized in that the length ratio of said condensation segment and said evaporator section is 1: 30-1: between 10.
7. like each described heat pipe of claim 1-5, it is characterized in that the external diameter of said evaporator section and isolation section is less than 9 millimeters.
8. like each described heat pipe of claim 1-5, it is characterized in that when heat pipe axis and ground level are 0 ° or during less than 5 ° of inclination angles work, but the working media of said phase transformation accounts for the ratio of said heat pipe total measurement (volume) between 12%-25%; When working at 40 ° of-90 ° of inclination angles, but the working media of said phase transformation accounts for the ratio of said heat pipe total measurement (volume) at 4%-8%.
9. heat pipe as claimed in claim 8 is characterized in that, when heat pipe axis and ground level are 0 ° or during less than 5 ° of inclination angles work, is 15% but the working media of said phase transformation accounts for the ratio of said heat pipe total measurement (volume).
10. heat pipe as claimed in claim 8 is characterized in that, when heat pipe axis and ground level are 40 ° of-90 ° of inclination angles work, is 6% but the working media of said phase transformation accounts for the ratio of said heat pipe total measurement (volume).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202135310U CN202216596U (en) | 2011-06-22 | 2011-06-22 | Heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202135310U CN202216596U (en) | 2011-06-22 | 2011-06-22 | Heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216596U true CN202216596U (en) | 2012-05-09 |
Family
ID=46015846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202135310U Expired - Lifetime CN202216596U (en) | 2011-06-22 | 2011-06-22 | Heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788441A (en) * | 2012-08-30 | 2012-11-21 | 安徽多达皖晶新能源有限公司 | Thermal absorbing fin for solar thermal collector |
| CN102840781A (en) * | 2011-06-22 | 2012-12-26 | 北京市太阳能研究所有限公司 | Heat pipe |
| CN110550241A (en) * | 2019-07-24 | 2019-12-10 | 中国空间技术研究院 | non-uniform internal angle structural liquid reservoir |
-
2011
- 2011-06-22 CN CN2011202135310U patent/CN202216596U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840781A (en) * | 2011-06-22 | 2012-12-26 | 北京市太阳能研究所有限公司 | Heat pipe |
| CN102788441A (en) * | 2012-08-30 | 2012-11-21 | 安徽多达皖晶新能源有限公司 | Thermal absorbing fin for solar thermal collector |
| CN110550241A (en) * | 2019-07-24 | 2019-12-10 | 中国空间技术研究院 | non-uniform internal angle structural liquid reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
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| CX01 | Expiry of patent term |