CN203464520U - Heat collector - Google Patents
Heat collector Download PDFInfo
- Publication number
- CN203464520U CN203464520U CN201320441481.0U CN201320441481U CN203464520U CN 203464520 U CN203464520 U CN 203464520U CN 201320441481 U CN201320441481 U CN 201320441481U CN 203464520 U CN203464520 U CN 203464520U
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- China
- Prior art keywords
- heat collector
- shaped
- tube
- shaped metal
- header
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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
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Abstract
The utility model discloses a heat collector which comprises a header, a main flow channel and a vacuum pipe. The vacuum pipe is inserted in the header, the main flow channel comprises connecting bends and more than two U-shaped metal pipes. The U-shaped metal pipes are connected through the connecting bends and inserted in the vacuum pipe, the connecting bends are placed in the header, every U-shaped metal pipe comprises two straight pipes and a U-shaped bend, and at least one straight pipe is provided with metal fins integrally formed with the at least one straight pipe. Due to integral forming of the U-shaped metal pipe and the metal fins, contact thermal resistance is reduced, and heating efficiency of the heat collector is improved. Due to the shapes of the U-shaped metal pipes of the heat collector and the rib arrangement, the service life of a heat collecting tube of the heat collector is greatly prolonged. The heat collector is simple in process, low in cost and good in heat transfer effect.
Description
Technical field
The utility model relates to field of solar energy, especially a kind of heat collector.
Background technology
The common full glass double-layer vacuum heat collecting glass tube of the general employing of existing U-shaped metal tube vacuum tube type solar energy heat collector, at the outer wall of inner tube of double-layer glass tube, being coated with solar energy absorbing coating is heat energy by light energy conversion, formation vacuum heat-insulating layer is evacuated between double glazing, U-shaped copper pipe is set in vacuum tube, heat transfer aluminium fin is equipped with in U-shaped pipe outside, thermofin contacts with glass-vacuum tube inner tube wall, interior pipe coating absorbs the heat energy transforming and passes to U-shaped pipe by thermofin, U-shaped pipe passes to inner heat-conducting medium again, this split inner bag heat collector assembling process is complicated, the common defective tightness of contact between U pipe and fin, and easily produce electrochemical corrosion between the two, between U pipe and sprue, adopt welding manner to connect in addition, processing technology is complicated, solder joint easily corrodes, affect the U pipe heat collector life-span, so be necessary existing U-shaped metal tube vacuum tube type solar energy heat collector to improve.
Summary of the invention
Main purpose of the present utility model is, a kind of thermal-collecting tube of new structure is provided, thereby can solve thermofin and U-shaped pipe thermal contact resistance shorter problem in large and service life.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of heat collector the utility model proposes, comprise header, sprue and vacuum tube, described vacuum tube inserts in described header, described sprue comprises connecting bend and two above U-shaped metal tubes, described U-shaped metal tube connects through connecting bend, and described U-shaped metal tube inserts in described vacuum tube, and described connecting bend is placed in described header, described U-shaped metal tube comprise two straight tubes and one U-shaped curved, on straight tube described at least one, be provided with metal fin integrated with it.
Preferably, described header comprises fore shell and back cover, is provided with vacuum tube socket on described fore shell, and described vacuum tube inserts in described vacuum tube socket.
Preferably, described fore shell is connected by grafting manner with back cover.
Preferably, on described fore shell and back cover, be coated with heat-insulation layer.
Preferably, the cross section of described U-shaped metal tube is oval, circular or semicircle.
Preferably, at described straight tube and/or be U-shapedly axially arranged with rib in curved.
Preferably, described metal fin be shaped as half-cylindrical thin-walled, with described vacuum tube inwall close contact.
Preferably, described U-shaped metal tube is U-shaped copper pipe or U-shaped aluminum pipe.
Preferably, described metal fin is copper fin or aluminium fin.
By technique scheme, the utility model heat collector at least has following advantages:
1. described in, U-shaped metal tube and metal fin is one-body molded, has reduced thermal contact resistance, has improved the efficiency of heating surface of heat collector.
2. the shape of the U-shaped metal tube of heat collector described in, and rib setting, extend the service life of the thermal-collecting tube of this heat collector greatly.
3. U-shaped metal tube of the present utility model and metal fin adopt copper material and aluminium material, have further strengthened hot transmission, improve heat transference efficiency.
4. header of the present utility model, has improved the heat insulation effect of heat collector.
5. the utility model processing technology is simple, with low cost, and heat-transfer effect is good.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heat collector specific embodiment of the present utility model;
Fig. 2 is the structural representation of sprue of the present utility model;
Fig. 3 is the structural representation of vacuum tube of the present utility model;
Fig. 4 is that the C of Fig. 3 is to view;
Fig. 5 a is that the A-A of Fig. 1 is to cutaway view;
Fig. 5 b is that the B-B of Fig. 1 is to cutaway view;
Fig. 6 is the structural representation of header of the present utility model.
The specific embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined utility model object is taked, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of heat collector, structure, feature and effect thereof to according to the utility model proposes, be described in detail as follows.In following explanation, the not necessarily same embodiment that different " embodiment " or " embodiment " refer to.In addition, special characteristic, structure or the feature in one or more embodiment can be combined by any suitable form.
A kind of heat collector as shown in Fig. 1 to Fig. 5 b, comprise header 1, sprue and vacuum tube 2, described vacuum tube 2 inserts in described header 1, described sprue comprises two U-shaped metal tubes 3 that connect through connecting bend 5, described U-shaped metal tube 3 inserts in described vacuum tube 2, described connecting bend 5 is placed in described header 1, described U-shaped metal tube 3 comprises two straight tubes 31 and one U-shaped curved 32, described two straight tubes 31 connect through U-shaped curved 32, wherein, on straight tube described at least one 31, be provided with metal fin 4 integrated with it.
Described U-shaped metal tube 3 and metal fin 4 one-body molded, whole no-welding-spot, has reduced thermal contact resistance, has improved the efficiency of heating surface of thermal-collecting tube and heat collector.Described sprue is one-body molded, directly forms waveform sprue.Like this, solderless contact on whole sprue, thereby the life-span that has greatly strengthened sprue.
This heat collector is when work, and described vacuum tube 2, the solar heat absorbing, passes to described sprue, and described sprue is fluid passage, and the liquid in described sprue can be heated.At described vacuum tube 2, absorb after heat, pass to metal fin 4, one-body molded due to described U-shaped metal tube 3 and metal fin 4, heat is when passing to metal fin 4, moment can pass to U-shaped metal tube 3, and the liquid in described U-shaped metal tube 3 also can be heated very soon.
Header 1 as shown in Figure 6 comprises fore shell 11 and back cover 12, on described fore shell 11, is provided with vacuum tube socket 13, and described vacuum tube 2 inserts in described vacuum tube socket 13.Described fore shell 11 is connected by grafting manner with back cover 12.
When mounted, first described U-shaped metal tube 3 is passed from the vacuum tube socket 13 of described header 1; Then, described U-shaped metal tube 3 is filled in from the openend of described vacuum tube 2, slowly promote described vacuum tube 2, make described U-shaped metal tube 3 insert described vacuum tube 2 to appropriate location, also described vacuum tube 2 is inserted fixing by described vacuum tube socket 13 places, then, described back cover 12 and described fore shell 11 are fastened, form header 1, like this, described connecting bend 5 is just arranged on described header 1 inside, and 3 of described U-shaped metal tubes are placed in described header 1 outside.If heat collector vacuum tube 2 numbers are too many, can adopt the mode of a plurality of flow passage device parallel connections.
Preferably, the cross section of described U-shaped metal tube 3 is oval, circular or semicircle.That is to say, the cross-sectional area of described straight tube 31 is oval, circular or semicircle, described U-shaped curved 32 cross-sectional area is oval, circular or semicircle, thereby make described fluid be distributed in pipeline at interior stress equilibrium when mobile of described U-shaped metal tube 3, can not cause the local explosion of pipeline, increase the service life of pipeline.
Preferably, in described straight tube 31 and U-shaped curved 32, be axially arranged with rib, for supporting described straight tube 31 and U-shaped curved 32 inwall.Be equivalent to increase a dividing plate in described annular inner wall, thereby increase the bearing capacity of wall.
Selectively, can only in described straight tube 31 or U-shaped curved 32, be axially arranged with rib.
Preferably, described metal fin 4 be shaped as half-cylindrical thin-walled, with described vacuum tube 2 inwall close contacts.The shape of described metal fin 4 not only makes its area maximize, and to absorb maximum heats within the unit interval, can also reduce thermal contact resistance.
Preferably, described U-shaped metal tube 3 is U-shaped copper pipe, and described metal fin 4 is copper fin.The material of described metal fin 4 and described U-shaped metal tube 3 are one-body molded, and material is also identical, thereby has strengthened heat transference efficiency.
Selectively, described U-shaped metal tube 3 is U-shaped aluminum pipe, and described metal fin 4 is aluminium fin.Or U-shaped metal tube 3 is other metal tubes, described metal fin 4 is other metal fins 4, described metal be chosen as the good material of thermal conductivity, the selection of described metal, does not affect enforcement of the present utility model.
Described U-shaped metal tube 3 is U-shaped aluminum pipe and described metal fin 4 during for aluminium fin, can be on the top layer of described U-shaped aluminum pipe and aluminium fin, and the inertia oxide layer of Nature creating one, thus corrosion resistance is strengthened, the life-span also further extends.
In the specific implementation, described heat collector also comprises frame and tailstock, for collaborative header 1, supports described thermal-collecting tube.
On described fore shell 11 and back cover 12, be coated with heat-insulation layer.Described heat-insulation layer material is mineral wool or polyurethane foam.The set-up mode of described header 1, has improved the heat insulation effect of heat collector greatly.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a heat collector, comprises header, sprue and vacuum tube, and described vacuum tube inserts in described header, it is characterized in that,
Described sprue comprises connecting bend and two above U-shaped metal tubes, and described U-shaped metal tube connects through connecting bend,
Described U-shaped metal tube inserts in described vacuum tube,
Described connecting bend is placed in described header,
Described U-shaped metal tube comprise two straight tubes and one U-shaped curved, on straight tube described at least one, be provided with metal fin integrated with it.
2. heat collector according to claim 1, is characterized in that,
Described header comprises fore shell and back cover, is provided with vacuum tube socket on described fore shell, and described vacuum tube inserts in described vacuum tube socket.
3. heat collector according to claim 2, is characterized in that,
Described fore shell is connected by grafting manner with back cover.
4. heat collector according to claim 2, is characterized in that,
On described fore shell and back cover, be coated with heat-insulation layer.
5. heat collector according to claim 1, is characterized in that,
The cross section of described U-shaped metal tube is oval, circular or semicircle.
6. heat collector according to claim 1, is characterized in that,
At described straight tube and/or be U-shapedly axially arranged with rib in curved.
7. heat collector according to claim 1, is characterized in that,
Described metal fin be shaped as half-cylindrical thin-walled, with described vacuum tube inwall close contact.
8. heat collector according to claim 1, is characterized in that,
Described U-shaped metal tube is U-shaped copper pipe or U-shaped aluminum pipe.
9. heat collector according to claim 1, is characterized in that,
Described metal fin is copper fin or aluminium fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441481.0U CN203464520U (en) | 2013-07-23 | 2013-07-23 | Heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441481.0U CN203464520U (en) | 2013-07-23 | 2013-07-23 | Heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464520U true CN203464520U (en) | 2014-03-05 |
Family
ID=50176882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320441481.0U Expired - Fee Related CN203464520U (en) | 2013-07-23 | 2013-07-23 | Heat collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203464520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567009A (en) * | 2014-12-25 | 2015-04-29 | 张立峰 | Portable solar cooker |
-
2013
- 2013-07-23 CN CN201320441481.0U patent/CN203464520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567009A (en) * | 2014-12-25 | 2015-04-29 | 张立峰 | Portable solar cooker |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20160723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |