CN2861887Y - Vacuum heat-collecting tube - Google Patents
Vacuum heat-collecting tube Download PDFInfo
- Publication number
- CN2861887Y CN2861887Y CNU2005201406470U CN200520140647U CN2861887Y CN 2861887 Y CN2861887 Y CN 2861887Y CN U2005201406470 U CNU2005201406470 U CN U2005201406470U CN 200520140647 U CN200520140647 U CN 200520140647U CN 2861887 Y CN2861887 Y CN 2861887Y
- Authority
- CN
- China
- Prior art keywords
- tube
- reflective
- wall
- coating
- reflective coating
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
A vacuum collection tube, comprising a nested inner and outer double layer glass tube, the space between two tubes is vacuumized, one end is fused for sealing, an external wall of the inner tube is applied with reflective basal layer, outside of reflective basal layer is applied with selective absorption coating, inner wall of the outer tube back light face is applied with reflective coating layer. Selective absorption coating on external wall of inner tube may absorb thermal energy as existing collection tube, whereas reflective basal layer could prevent heat in from radiating outwards; reflective coating layer on inner wall of outer tube serves as reflecting plate, increases reflection area, and could reflect outward radiation of inner tube back. Compared with prior art, the utility model all-glass solar vacuum collection tube could increase collection efficiency significantly, has good thermal insulation effect. Reflective coating layer is applied on inner wall of outer tube, dust will not deposit, so that collection efficiency could be guaranteed in long term.
Description
Technical field
The utility model relates to a kind of solar collection element, particularly a kind of full-glass solar energy collecting vacuum tube.
Background technology
Solar water heater mainly absorbs heat by vacuum heat collection pipe, present thermal-collecting tube all is to adopt inside and outside double-layer glass tube, the outer wall of interior pipe is coated with coating for selective absorption and absorbs the gathering heat, vacuumizes the preservation heat between two pipes, prevents that the heat convection current is lost.In order to increase the absorption efficiency of solar energy, normally the shady face at thermal-collecting tube adds reflector to increase daylighting area, will reflect back through the light of thermal-collecting tube and shine once more in thermal-collecting tube to improve collecting efficiency by reflector.But this method is subjected to external environment influence such as region or weather bigger, uses after a period of time, and reflecting effect will weaken greatly.And in strong wind, easily produce dangerous.And cancelled reflector, only utilize the vacuum heat collection pipe area of illumination to absorb sunlight, the daylighting area that seems again deficiency.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed the full-glass solar energy collecting vacuum tube of a kind of collecting efficiency height, high insulating effect.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of vacuum heat collection pipe, it comprises the inside and outside double-layer glass tube of suit, vacuumize between two pipes and in the frit seal of one end, be characterized in: the outer wall of interior pipe is coated with and is coated with reflection basic unit, the selective absorber coatings of coating outside reflection basic unit, the inwall of outer tube shady face scribbles reflective coating.
The technical problems to be solved in the utility model can also come by the following technical programs to realize that further the reflective coating of outer tube shady face is along the circumferential coating of its inwall that the central angle of reflective coating coating is 60 °～180 ° angles.
The utility model outer wall of pipe in thermal-collecting tube is coated with and is coated with reflection basic unit and coating for selective absorption, and the inwall of outer tube shady face is coated with along the certain arc length of circumference and is coated with reflective coating.The coating for selective absorption of outer wall of inner tube can equally with existing thermal-collecting tube absorb heat energy, and reflection basic unit can stop the interior heat of pipe to external radiation; The reflective coating of outer tube wall plays the effect of reflector, has promptly increased reflective area, interior pipe can be reflected back to extraradial part heat again.Compared with prior art, full-glass solar energy collecting vacuum tube of the present utility model can improve collecting efficiency greatly, and has good heat insulation effect.Reflective coating is coated with and is plated on outer tube wall, and the ash that can laying dust do not fall is guaranteed collecting efficiency for a long time.
Description of drawings
Accompanying drawing is a structure diagram of the present utility model.
The specific embodiment
As shown in the figure, a kind of full-glass solar energy collecting vacuum tube, it comprises the interior pipe 1 and the outer tube 2 of suit, between interior pipe 1 and the outer tube 2 is vacuum layer, the outer wall of interior pipe 1 is coated with and is coated with reflection basic unit 5, the selective absorber coatings 4 of coating outside reflection basic unit 5, the inwall of outer tube 2 shady faces scribbles the reflective coating 3 of high reflectance and low-launch-rate.When solar light irradiation thermal-collecting tube, not by the incident ray of coating for selective absorption 4 absorptions of interior pipe 1 outer wall, the rete 3 that is reflected again reflects back and shines once more in interior pipe 1, increased irradiated area, pipe 1 heat that the radiates film 3 that also can be reflected partly reflects back simultaneously, has reduced the loss of heat.
The reflective coating 3 of outer tube 2 shady faces is along the circumferential coating of its inwall, and the central angle of reflective coating 3 coatings is 60 °～180 ° angles.The central angle of reflective coating 3 coatings is during less than 60 °, and the reflex that plays is very small, when the central angle of reflective coating 3 coatings during greater than 180 °, has hindered the incident of light with regard to the coating that has part, plays side effect.So the central angle of reflective coating 3 coatings is preferably in 60.Between～180 ° of angles.Certainly the central angle of reflective coating 3 coatings is slightly less than 60 ° or be slightly larger than 180 ° also within protection domain of the present utility model.
Claims (2)
1. vacuum heat collection pipe, it comprises the inside and outside double-layer glass tube (1,2) of suit, vacuumize between two pipes and in the frit seal of one end, it is characterized in that: the outer wall of interior pipe (1) is coated with and is coated with reflection basic unit (5), the selective absorber coatings of coating (4) outside reflection basic unit (5), the inwall of outer tube (2) shady face scribbles reflective coating (3).
2. vacuum heat collection pipe according to claim 1 is characterized in that: the reflective coating (3) of outer tube (2) shady face is along the circumferential coating of its inwall, and the central angle of reflective coating (3) coating is 60 °～180 ° angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201406470U CN2861887Y (en) | 2005-12-31 | 2005-12-31 | Vacuum heat-collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201406470U CN2861887Y (en) | 2005-12-31 | 2005-12-31 | Vacuum heat-collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861887Y true CN2861887Y (en) | 2007-01-24 |
Family
ID=37659518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201406470U Expired - Fee Related CN2861887Y (en) | 2005-12-31 | 2005-12-31 | Vacuum heat-collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861887Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075675A1 (en) * | 2008-12-31 | 2010-07-08 | 北京实力源科技开发有限责任公司 | Solar heat-absorbing pipe and manufacture method thereof |
| CN101900444A (en) * | 2010-07-13 | 2010-12-01 | 江苏富源节能电器有限公司 | High-efficiency vacuum tube |
| CN105593609A (en) * | 2013-09-30 | 2016-05-18 | 任道淳 | Solar energy collector and system for using same |
| CN106032941A (en) * | 2015-03-17 | 2016-10-19 | 益科博能源科技（上海）有限公司 | Vacuum heat collector |
| CN109099596A (en) * | 2018-09-07 | 2018-12-28 | 安徽春升新能源科技有限公司 | A kind of four target solar energy heat collection pipes |
-
2005
- 2005-12-31 CN CNU2005201406470U patent/CN2861887Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075675A1 (en) * | 2008-12-31 | 2010-07-08 | 北京实力源科技开发有限责任公司 | Solar heat-absorbing pipe and manufacture method thereof |
| CN101900444A (en) * | 2010-07-13 | 2010-12-01 | 江苏富源节能电器有限公司 | High-efficiency vacuum tube |
| CN105593609A (en) * | 2013-09-30 | 2016-05-18 | 任道淳 | Solar energy collector and system for using same |
| CN105593609B (en) * | 2013-09-30 | 2018-12-07 | 任道淳 | Solar collector and the system for using the solar collector |
| CN106032941A (en) * | 2015-03-17 | 2016-10-19 | 益科博能源科技（上海）有限公司 | Vacuum heat collector |
| CN109099596A (en) * | 2018-09-07 | 2018-12-28 | 安徽春升新能源科技有限公司 | A kind of four target solar energy heat collection pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20100201 |