CN2616868Y - Straight-through full-glass vacuum solar heat collecting tube - Google Patents
Straight-through full-glass vacuum solar heat collecting tube Download PDFInfo
- Publication number
- CN2616868Y CN2616868Y CNU032504276U CN03250427U CN2616868Y CN 2616868 Y CN2616868 Y CN 2616868Y CN U032504276 U CNU032504276 U CN U032504276U CN 03250427 U CN03250427 U CN 03250427U CN 2616868 Y CN2616868 Y CN 2616868Y
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- China
- Prior art keywords
- glass tube
- tube
- glass
- straight
- vacuum
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- 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 - Fee Related
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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
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Abstract
The utility model relates to a straight-through full-glass vacuum solar heat collecting tube which is used for a vacuum tube solar heat collector, which comprises a transparent outer glass tube, and both ends of the outer glass tube are opened. The utility model is characterized in that both ends or one end of the other inner glass tube formed into the utility model is provided with a corrugated section or a screw-thread section, both ends of the inner glass tube are opened, and the outer surface of the inner glass tube is accompanied by a solar selective absorbing coating. The inner glass tube is inserted into the outer glass tube and is coaxial with the outer glass tube, both ends of the inner and outer glass tubes are respectively sealed to form circular openings, and the interlayer between the inner and the outer glass tubes is in the state of high vacuum. Because the defect of easy 'exploding tube' of the original all glass vacuum solar heat collecting tube in the same class is overcome, the application region and range is enlarged, and the utility model has the advantage of easy popularization.
Description
The utility model relates to a kind of complete glass vacuum sun thermal-collecting tube that is used for solar vacuum tube collector.
I designed " a kind of solar thermal collector that can be used for the circular form water heater " on March 21st, 2002, and had proposed utility application (application number: 02208082.1).This heat collector both vertically (up and down) place, also can horizontal positioned; Upper and lower cross over pipe (also deserving to be called, descend union pipe) can be made straight tube, also can make bend pipe, is more convenient for combining with building, has many advantages.But with regard to its used complete glass vacuum sun thermal-collecting tube, because constituting its inside and outside glass tube is two straight tubes, under certain situation in actual use, because the residing temperature environment of inside and outside glass tube differs greatly, Bei Fang winter particularly, extraneous temperature may be low to moderate subzero two, 30 degree, and the temperature difference of so inside and outside glass tube may be up to seven, 80 degree.Like this, because the inner glass tube linear expansion is bigger, the outer glass pipe linear expansion is less, causes thermal-collecting tube " bombing " phenomenon to occur because of non-homogeneous expansion with regard to being easy to.
The purpose of this utility model just is to provide a kind of similar straight through type all glass vacuum solar collector pipe, and it can solve above-mentioned " bombing " problem effectively, makes it not only can be fit to warm south, also can be fit to the cold north.
The purpose of this utility model realizes by the inner glass tube two ends being made corrugated or screw-shaped technical scheme.
Below in conjunction with Figure of description it is further described.Figure of description is the schematic diagram (cutaway view) of this straight through type all glass vacuum solar collector pipe.Its formation comprises a both ends open and transparent outer glass pipe [1], it is characterized in that: the both ends or one end of inner glass tube [2] that constitute its another root both ends open have bellows segment or the thread segment that section is corrugated or thread-shaped; Its outer surface is directly made with solar selective absorbing coating or this effective antisolar glass; Inner glass tube [2] inserts in the outer glass pipe [1] also coaxial with it; Inside and outside glass tube two ends are respectively by sealing by fusing opening circlewise; Interlayer between the two becomes high vacuum state at last through high-temperature exhaust air.For improving its vacuum, can be equipped with the elastic supporting piece of band getter between the inside and outside glass tube, and carry out the roasting gas of eliminating of high temperature.
In the said structure of this straight through type all glass vacuum thermal-collecting tube, the effect of outer glass pipe [1] is to see through sunlight; The effect of inner glass tube [2] is that transform light energy is become heat energy, and by fluid in the pipe or heat conduction member thermal energy conduction is come out; The effect of vacuum interlayer then is for heat insulation, prevents thermal convection current.When the inside and outside glass tube temperature difference was big, the linear expansion of inner glass tube was absorbed by the bellows segment or the thread segment of its end, was about to that linear expansion is controlled at this vacuum tube unlikely " bombing ", within the scope that can bear.
Because this straight through type all glass vacuum solar collector pipe has overcome original similar complete glass vacuum sun thermal-collecting tube defect of " bombing " easily, thereby has enlarged use region and scope, has wide promotion prospect.
Claims (2)
1, a kind of straight through type all glass vacuum solar collector pipe, its formation comprises a both ends open and transparent outer glass pipe [1], it is characterized in that: the both ends or one end of inner glass tube [2] that constitute its another root both ends open have bellows segment or the thread segment that section is corrugated or thread-shaped; Its outer surface is directly made with solar selective absorbing coating or this effective antisolar glass; Inner glass tube [2] inserts in the outer glass pipe [1] also coaxial with it; Inside and outside glass tube two ends are respectively by sealing by fusing opening circlewise; Interlayer between the two becomes high vacuum state at last through high-temperature exhaust air.
2, straight through type all glass vacuum solar collector pipe as claimed in claim 1 is characterized in that can being equipped with between the inside and outside glass tube elastic supporting piece of being with getter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032504276U CN2616868Y (en) | 2003-04-21 | 2003-04-21 | Straight-through full-glass vacuum solar heat collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032504276U CN2616868Y (en) | 2003-04-21 | 2003-04-21 | Straight-through full-glass vacuum solar heat collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616868Y true CN2616868Y (en) | 2004-05-19 |
Family
ID=34252768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032504276U Expired - Fee Related CN2616868Y (en) | 2003-04-21 | 2003-04-21 | Straight-through full-glass vacuum solar heat collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616868Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141312A (en) * | 2011-04-02 | 2011-08-03 | 山东桑乐真空管有限公司 | All-glass straight-way vacuum heat collecting pipe |
| CN104075468A (en) * | 2014-06-06 | 2014-10-01 | 云南省玉溪市太标太阳能设备有限公司 | Bi-pass solar vacuum tube with expansion joint |
| CN106595095A (en) * | 2016-12-22 | 2017-04-26 | 东南大学 | Straight-through type double-layered glass heat collecting tube with selective absorber coating |
| CN108253641A (en) * | 2018-01-30 | 2018-07-06 | 王冀军 | A kind of solar water heater of anti-cracking |
-
2003
- 2003-04-21 CN CNU032504276U patent/CN2616868Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141312A (en) * | 2011-04-02 | 2011-08-03 | 山东桑乐真空管有限公司 | All-glass straight-way vacuum heat collecting pipe |
| CN104075468A (en) * | 2014-06-06 | 2014-10-01 | 云南省玉溪市太标太阳能设备有限公司 | Bi-pass solar vacuum tube with expansion joint |
| CN106595095A (en) * | 2016-12-22 | 2017-04-26 | 东南大学 | Straight-through type double-layered glass heat collecting tube with selective absorber coating |
| CN108253641A (en) * | 2018-01-30 | 2018-07-06 | 王冀军 | A kind of solar water heater of anti-cracking |
| CN108253641B (en) * | 2018-01-30 | 2020-07-24 | 敏达环保科技（嘉兴）有限公司 | Anti-cracking solar water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |