CN103673353A - Internal-condensation single-ended medium-high temperature solar thermal collecting pipe - Google Patents
Internal-condensation single-ended medium-high temperature solar thermal collecting pipe Download PDFInfo
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- CN103673353A CN103673353A CN201310742134.6A CN201310742134A CN103673353A CN 103673353 A CN103673353 A CN 103673353A CN 201310742134 A CN201310742134 A CN 201310742134A CN 103673353 A CN103673353 A CN 103673353A
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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 invention relates to an internal-condensation single-ended medium-high temperature solar thermal collecting pipe which comprises a condensation reflector, an outer pipe and a metal thermal absorption pipe, wherein one end of the outer pipe and one end of the metal thermal absorption pipe are open, and the outer pipe and the metal thermal absorption pipe are coaxially arranged. The internal-condensation single-ended medium-high temperature solar thermal collecting pipe is characterized in that the outer pipe is a glass pipe, the open end of the outer pipe is provided with a metal end cover capable of axially deforming, and a vacuum sealing cavity is arranged in the outer pipe; the condensation reflector is located in the vacuum sealing cavity, and the focus point of the condensation reflector is located in the central axis of the metal thermal absorption pipe; an ingress pipe coaxial with the metal thermal absorption pipe is arranged in the metal thermal absorption pipe, and the open end of the metal thermal absorption pipe extends out of the metal end cover; heat-conducting media enter the metal thermal absorption pipe from the ingress pipe and flows out after heat is absorbed by an interlayer between the ingress pipe and the metal thermal absorption pipe.
Description
Technical field
The present invention relates to a kind of thermal-collecting tube, high-temperature heat-collection pipe in the single-ended solar energy of especially a kind of interior optically focused.
Background technology
Heat leakage is interpreted as gaseous exchange, material conduction and three kinds of modes of radiation from mechanism.Thermal-collecting tube is the critical component in a kind of solar thermal collector, generally has compound glass thermal-collecting tube, collector metal pipe and by glass and the compound metal vacuum thermal-collecting tube of metal tube.
CN102278832A Chinese patent literature discloses high-temperature heat-collection pipe and preparation method thereof in a kind of internal light-focusing solar, it is that reflecting plate 3 is positioned in vacuum chamber by elastic bracket 8, endothermic tube adopts metal sleeve 5, structure relative complex, process beset by troubles difficulty, although they have the higher thermal efficiency theoretically, in practice, we find, because the internal layer of vacuum chamber in middle high-temperature heat-collection pipe contacts with high-temperature region, skin is positioned at extraneous place, in product work process, the ectonexine temperature difference is generally all more than 4-5 times, very easily concentrating at their joint portion formation stress of the internal and external layers of glass of vacuum chamber, make the joint portion of internal and external layers of glass damaged, thereby having lost by vacuum stops internal high temperature district to the technical advantage of outside dissipate heat.
CN202521925U Chinese patent literature discloses high-temperature heat-collection pipe in a kind of interior optically focused bearing type solar energy, mainly by elastic bracket, to be positioned the processing method complexity in vacuum chamber for reflecting plate, reflecting plate is moved in the annular seal space being built by glass outer tube outside vacuum chamber, this structure does not solve because the ectonexine temperature difference in middle high-temperature heat-collection pipe is generally all more than 4-5 times equally, very easily in the joint portion of vacuum tube internal and external layers of glass, forming stress concentrates, make the technical problem of the joint portion breakage of internal and external layers of glass, and endothermic tube adopts metal sleeve, structure relative complex, process the practical problem of beset by troubles difficulty.
Summary of the invention
The present invention is directed to the technological deficiency that technical scheme that above-mentioned document relates to exists, structure, improved, obtain high-temperature heat-collection pipe in a kind of new single-ended solar energy of interior optically focused.
The object of the present invention is achieved like this: high-temperature heat-collection pipe in the single-ended solar energy of a kind of interior optically focused, the outer tube and the metal heat absorption tube that comprise concentration inverse light panel and an end opening, outer tube and metal heat absorption tube concentric arrange, it is characterized in that: outer tube is glass tube, outer tube openend is provided with metal end that can axial deformation, and the inside of outer tube is vacuum-sealed cavity; Concentration inverse light panel is arranged in vacuum-sealed cavity, and the focus point of concentration inverse light panel is positioned at the axis of metal heat absorption tube; In described metal heat absorption tube, be provided with the ingress pipe of concentric, the openend of metal heat absorption tube stretches out metal end; Heat-conducting medium enters metal heat absorption tube by ingress pipe, by flowing out after the interlayer heat absorption between ingress pipe and metal heat absorption tube.
In technical scheme of the present invention, described metal end seals by fusion or mode and the outer tube peristome of hot sealing are solidified as a whole, and welded seal is passed through in when metal heat absorption tube stretches out vacuum-sealed cavity and the joint portion of metal end.
In technical scheme of the present invention, described outer tube plated surface AR film, scribbles absorbing film on described metal heat absorption tube.
In technical scheme of the present invention, described concentration inverse light panel cross section is that two symmetrical focusing boards are put together, and two focusing boards all focus on the axis of metal heat absorption tube.
In technical scheme of the present invention, in reflecting condensation plate, the sectional curve of focusing board is circular arc, parabola, involute and the mutual combination between them.
In technical scheme of the present invention, outer tube one end can axial deformation metal end be can valve material.
In technical scheme of the present invention, outer tube openend can axial deformation metal end comprise expansion of metal bellows and can valve metal pipe, one end of described expansion of metal bellows is provided with sealing plate, the other end is by being connected with outer tube by valve metal pipe, and described sealing plate seals after welding with the metal heat absorption tube that stretches out vacuum-sealed cavity.
The invention has the advantages that: because vacuum chamber is to adopt unlike material by outer tube, metal heat absorption tube (inner tube), the openend of outer tube is can valve material, or expansion of metal bellows, the lower outer tube intersection of the central tube heat absorbing end that temperature is higher and temperature is by being cushioned by valve material, absorb energy, can not cause their joint portion cracking, guarantee vacuum heat-insulation effect; Due to outer tube plated surface AR film, on described metal heat absorption tube, scribble absorbing film, can improve the light transmission of outer tube and the heat absorption capacity of metal heat absorption tube; Due to reflecting condensation plate is arranged in the vacuum layer between outer tube and metal heat absorption tube, between wall and metal heat absorption tube outer wall, reserve within the outer tube enough distances, by design, change the dimension scale of reflecting condensation plate and metal heat absorption tube diameter in vacuum layer (digital reflex solar panel receives the end face of sunlight and the diameter of central tube diameter), can form target and focus on ratio, the compact conformation of equipment not only, system is also fairly simple easy, and metal heat absorption tube can obtain needed design temperature.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present invention.
Fig. 2 is the A-A schematic cross-section of Fig. 1.
Fig. 3 is another kind of example structure schematic diagram of the present invention.
In figure: 1: metal heat absorption tube; 2: metal end; 3: fusion sealing or hot sealing, 4: concentration inverse light panel; 5: outer tube; 6. ingress pipe; 7: vacuum-sealed cavity: 8: expansion of metal bellows, 9, can valve metal pipe.
The specific embodiment
The nonrestrictive concrete structure that discloses the embodiment of the present invention of accompanying drawing, is further described the present invention below in conjunction with accompanying drawing.
From Fig. 1 and Fig. 2, one the present invention includes outer tube 5 and the metal heat absorption tube 1 of concentration inverse light panel 4 and an end opening, outer tube 5 and metal heat absorption tube 1 concentric setting, and outer tube 5 is glass tube, outer tube 5 openends are provided with metal end 2 that can axial deformation, and the inside of outer tube 1 is vacuum-sealed cavity 7; Concentration inverse light panel 4 is arranged in vacuum-sealed cavity 7, and the focus point of concentration inverse light panel 4 is positioned at the axis of metal heat absorption tube 1; The ingress pipe 6 that is provided with the heat-conducting medium of concentric in described metal heat absorption tube 1, the openend of metal heat absorption tube 1 stretches out metal end 2; Heat-conducting medium enters metal heat absorption tube 1 by ingress pipe 6, by flowing out after the interlayer heat absorption between ingress pipe 6 and metal heat absorption tube 1.
In the present embodiment, described metal end 2 is can valve material, and it is to seal or mode and outer tube 5 peristomes of hot sealing 3 are solidified as a whole by fusion, and welded seal is passed through in when metal heat absorption tube 1 stretches out the vacuum-sealed cavity 7 and joint portion of metal end 2.Described concentration inverse light panel 4 cross sections are that two symmetrical focusing boards are put together, and two focusing boards all focus on the axis of metal heat absorption tube 1.
During concrete enforcement, described outer tube 5 plated surface AR films, scribble absorbing film on described metal heat absorption tube 1.In described reflecting condensation plate 4, the sectional curve of focusing board is circular arc, parabola, involute and the mutual combination between them.
The embodiment of Fig. 3 and the difference of Fig. 1 be only outer tube 5 openends can axial deformation metal end 2, as seen from Figure 3, metal end 3 that can axial deformation comprises expansion of metal bellows 8 and can valve metal pipe 9, one end of described expansion of metal bellows 8 is provided with sealing plate, the other end is by being connected with outer tube 5 by valve metal pipe 9, and described sealing plate seals after welding with the metal heat absorption tube 1 that stretches out vacuum-sealed cavity 7.
Claims (7)
1. high-temperature heat-collection pipe in the single-ended solar energy of optically focused in a kind, the outer tube and the metal heat absorption tube that comprise concentration inverse light panel and an end opening, outer tube and metal heat absorption tube concentric arrange, it is characterized in that: outer tube is glass tube, outer tube openend is provided with metal end that can axial deformation, and the inside of outer tube is vacuum-sealed cavity; Concentration inverse light panel is arranged in vacuum-sealed cavity, and the focus point of concentration inverse light panel is positioned at the axis of metal heat absorption tube; In described metal heat absorption tube, be provided with the ingress pipe of concentric, the openend of metal heat absorption tube stretches out metal end; Heat-conducting medium enters metal heat absorption tube by ingress pipe, by flowing out after the interlayer heat absorption between ingress pipe and metal heat absorption tube.
2. high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused according to claim 1, it is characterized in that: described metal end seals by fusion or mode and the outer tube peristome of hot sealing are solidified as a whole, and welded seal is passed through in when metal heat absorption tube stretches out vacuum-sealed cavity and the joint portion of metal end.
3. high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused according to claim 1, is characterized in that: described outer tube plated surface AR film, scribbles absorbing film on described metal heat absorption tube.
4. high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused according to claim 1, is characterized in that: described concentration inverse light panel cross section is that two symmetrical focusing boards are put together, and two focusing boards all focus on the axis of metal heat absorption tube.
5. high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused according to claim 4, is characterized in that: in reflecting condensation plate, the sectional curve of focusing board is circular arc, parabola, involute and the mutual combination between them.
6. according to high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused one of claim 1-5 Suo Shu, it is characterized in that: outer tube one end can axial deformation metal end for can valve material.
7. according to high-temperature heat-collection pipe in the single-ended solar energy of interior optically focused one of claim 1-5 Suo Shu, it is characterized in that: outer tube openend can axial deformation metal end comprise expansion of metal bellows and can valve metal pipe, one end of described expansion of metal bellows is provided with sealing plate, the other end is by being connected with outer tube by valve metal pipe, and described sealing plate seals after welding with the metal heat absorption tube that stretches out vacuum-sealed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310742134.6A CN103673353A (en) | 2013-12-30 | 2013-12-30 | Internal-condensation single-ended medium-high temperature solar thermal collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310742134.6A CN103673353A (en) | 2013-12-30 | 2013-12-30 | Internal-condensation single-ended medium-high temperature solar thermal collecting pipe |
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| Publication Number | Publication Date |
|---|---|
| CN103673353A true CN103673353A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310742134.6A Pending CN103673353A (en) | 2013-12-30 | 2013-12-30 | Internal-condensation single-ended medium-high temperature solar thermal collecting pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928216A (en) * | 2016-04-11 | 2016-09-07 | 北京金阳科创太阳能技术有限公司 | Point focusing solar vacuum receiver |
| WO2023175051A1 (en) * | 2022-03-15 | 2023-09-21 | Martin Hadlauer | Absorber unit, mirror unit and solar collector or solar installation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20108879U1 (en) * | 2001-05-29 | 2002-01-03 | Consolar Energiespeicher Und R | Vacuum tube collector with reflector |
| CN2495957Y (en) * | 2001-08-24 | 2002-06-19 | 徐鸿胜 | Light condensation and glass vacuum type solar energy heat collector |
| CN1743755A (en) * | 2005-10-12 | 2006-03-08 | 沈金锐 | Internal light-focusing vacuum solar heat collecting pipe |
| CN101832671A (en) * | 2010-05-28 | 2010-09-15 | 兰州大成科技股份有限公司 | Solar collector tube |
| CN102589168A (en) * | 2011-11-16 | 2012-07-18 | 张建城 | Line-focus solar heat collecting tube provided with hot-pressing sealing protection device |
| CN203719203U (en) * | 2013-12-30 | 2014-07-16 | 南京诚远太阳能科技有限公司 | Internal condensation single-ended solar energy middle-high temperature heat gathering pipe |
-
2013
- 2013-12-30 CN CN201310742134.6A patent/CN103673353A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20108879U1 (en) * | 2001-05-29 | 2002-01-03 | Consolar Energiespeicher Und R | Vacuum tube collector with reflector |
| CN2495957Y (en) * | 2001-08-24 | 2002-06-19 | 徐鸿胜 | Light condensation and glass vacuum type solar energy heat collector |
| CN1743755A (en) * | 2005-10-12 | 2006-03-08 | 沈金锐 | Internal light-focusing vacuum solar heat collecting pipe |
| CN101832671A (en) * | 2010-05-28 | 2010-09-15 | 兰州大成科技股份有限公司 | Solar collector tube |
| CN102589168A (en) * | 2011-11-16 | 2012-07-18 | 张建城 | Line-focus solar heat collecting tube provided with hot-pressing sealing protection device |
| CN203719203U (en) * | 2013-12-30 | 2014-07-16 | 南京诚远太阳能科技有限公司 | Internal condensation single-ended solar energy middle-high temperature heat gathering pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928216A (en) * | 2016-04-11 | 2016-09-07 | 北京金阳科创太阳能技术有限公司 | Point focusing solar vacuum receiver |
| WO2023175051A1 (en) * | 2022-03-15 | 2023-09-21 | Martin Hadlauer | Absorber unit, mirror unit and solar collector or solar installation |
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Application publication date: 20140326 |