CN105783286B - Straight-through vacuum thermal-collecting tube and the solar air heat collection system assembled by it - Google Patents
Straight-through vacuum thermal-collecting tube and the solar air heat collection system assembled by it Download PDFInfo
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- CN105783286B CN105783286B CN201610277015.1A CN201610277015A CN105783286B CN 105783286 B CN105783286 B CN 105783286B CN 201610277015 A CN201610277015 A CN 201610277015A CN 105783286 B CN105783286 B CN 105783286B
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- tube
- straight
- inner tube
- vacuum thermal
- metal
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Classifications
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- 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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
-
- 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)
- Thermal Insulation (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The solar air heat collection system that the present invention provides a kind of straight-through vacuum thermal-collecting tube of safety and stability and assembled by it, the inner tube including outer tube and in outer tube, said inner tube are the straight pipe that both ends are equipped with opening, and vacuum chamber is equipped between the outer tube and inner tube；Metal tube is equipped in said inner tube, the outer wall of the metal tube is equipped with the selective coating for absorbing solar energy；The metal tube is equipped with the notch through its upper and lower ends；The metal tube of the selective coating of setting tool, solar energy are mainly absorbed by metal tube in inner tube, and the temperature difference of inner tube and outer tube is little, will not be because of breakage caused by expansion unevenness, securely and reliably；The notch of metal tube makes its expanded by heating not rack inner tube；The interconnecting piece at straight-through vacuum thermal-collecting tube both ends is threadedly coupled by connection screw thread with header, better tightness.
Description
Technical field
The present invention relates to solar thermal collection system field, more particularly, to be straight-through vacuum thermal-collecting tube and by its assembling
Solar air heat collection system.
Background technique
Common solar vacuum heat-collecting pipe includes that outer glass pipe and inner glass tube generally only have one end to be equipped with opening, interior glass
It is coated on the outer wall of glass pipe for improving solar absorptance and reducing the coating of reflectivity, the temperature of inner glass tube and outer glass pipe
Difference is bigger, is easy to lead to glass tracheal rupture because of expansion unevenness.The end of the evacuated collector tube of general solar thermal collection system
For cylinder, grafting is sealed by " silica gel ring " and header, leakproofness is poor.And must have between each evacuated collector tube compared with
Big gap influences the solar energy utilization ratio in unit collector area.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of straight-through vacuum thermal-collecting tube of safety and stability and by its group
The solar air heat collection system of dress.
To achieve the above object, the technical solution of the invention is as follows: straight-through vacuum thermal-collecting tube, including outer tube and is set to outer
Inner tube in pipe, the vacuum tube are the straight pipe that both ends are equipped with opening, and vacuum chamber is equipped between the outer tube and inner tube；Institute
It states and is equipped with metal tube in inner tube, the outer wall of the metal tube is equipped with the selective coating for absorbing solar energy.
Preferably, the metal tube is equipped with the notch through its both ends.Notch can facilitate metal tube to install, and make gold
It is heated with expansion space to belong to pipe.
Preferably, wire is equipped between said inner tube and metal tube.Wire transmits heat to metal tube for inner tube.
Preferably, the both ends of said inner tube are merged with the both ends of outer tube respectively is integrally formed two connector portions, the connector
Portion is equipped with connection screw thread.It is connect by connection screw thread with header, better tightness.
Preferably, the connection screw thread of two connector portions is oppositely oriented.Rotary feedthrough evacuated collector tube can dismount two simultaneously
End.
Preferably, the outer diameter of the connector portions is less than the outer diameter of outer tube.Can solid matter straight-through vacuum thermal-collecting tube be mounted on header
On.
Preferably, the metal tube is the sheet metal of web-like.Keep the diameter of metal tube scalable, facilitates installation, avoid heat
Expand the active force to inner tube.
A kind of solar air heat collection system, including above-mentioned straight-through vacuum thermal-collecting tube further include two spaced
Case, the both ends of the straight-through vacuum thermal-collecting tube are connect with two headers respectively.Solar thermal collection system is solar air heat collection
Device.
Preferably, the header is equipped with connecting hole, is equipped with connection cover, the connection cover and connector portions in the connecting hole
It is threadedly coupled；The one end of the connection cover in header is equipped with gear edge.
It is put in glass inner tube by using above-mentioned technical solution the beneficial effects of the present invention are: the present invention is straight pipe
The metal tube with selective coating is set, solar energy is mainly absorbed by metal tube, the glass inner tube of vacuum tube and outer glass tube
The temperature difference is little, will not be because of breakage caused by swelling stress unevenness, securely and reliably；And metal tube thermal conductivity is good, the notch of metal tube
Make metal tube that there is expanded by heating space, inner tube will not be racked；The interconnecting piece at straight-through vacuum thermal-collecting tube both ends passes through connection screw thread
It is threadedly coupled with header, better tightness；The connection screw thread of two connectors it is oppositely oriented, can be simultaneously by straight-through vacuum thermal-collecting tube
Rotation is connected on two headers.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the cross-sectional view of the position A-A in Fig. 1；
Fig. 3 is the structural schematic diagram of solar thermal collection system of the present invention；
Fig. 4 is the structural schematic diagram of connection cover of the present invention；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 6 is the cross-sectional view of the position B-B in Fig. 5；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 3；
Fig. 8 is the cross-sectional view of the position C-C in Fig. 7；
Fig. 9 is the structural schematic diagram of the embodiment of the present invention 4；
Figure 10 is the cross-sectional view of the position D-D in Fig. 9.
Main appended drawing reference explanation:
Straight-through vacuum thermal-collecting tube 1；Outer tube 11；Vacuum chamber 12；Inner tube 13；Metal tube 14；Selective coating 141；Notch
142；Through-hole 143；Connector portions 15；Connection screw thread 151；Wire 16；Connection cover 2；Gear is along 21；Header 3；Connecting hole 31.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Embodiment 1:
As Figure 1-Figure 2, straight-through vacuum thermal-collecting tube of the invention, the inner tube including outer tube 11 and in outer tube 11
13, outer tube 11 and inner tube 13 are transparent glass tube；Said inner tube 13 is the straight pipe that both ends are equipped with opening, the outer tube
Vacuum chamber 12 is equipped between 11 and inner tube 13；Metal tube 14 is equipped in said inner tube 12, the outer wall of the metal tube 14 is equipped with
For absorbing the selective coating 141 of solar energy；Wire 16 is equipped between said inner tube 13 and metal tube 14, wire 16 can
By the heat transfer of inner tube 13 to metal tube 14；Integrally formed two are merged with the both ends of outer tube 11 respectively in the both ends of said inner tube 11
A connector portions 15, the connector portions 15 be equipped with connection screw thread 151, the connection screw thread 151 be external screw thread, connector portions 15 with it is interior
The glass structure that pipe 13 and outer tube 11 are integrated, better tightness after connection screw thread installs connector portions 15；Two connector portions 15
Connection screw thread 151 it is oppositely oriented, one be left hand thread, another be right-handed thread, straight-through vacuum thermal-collecting tube and two
When header is installed, rotary feedthrough evacuated collector tube can simultaneously be screwed its both ends；The outer diameter of the connector portions 15 is less than outer tube 11
Outer diameter, the connector portions 15 of small diameter make straight-through vacuum thermal-collecting tube can solid matter be mounted on header.
Sunlight passes through outer tube 11 and inner tube 13 is absorbed by the selective coating 141 of metal tube 14, and metal tube 14 is heated
Heating, cold air are flowed into from one end of straight-through vacuum thermal-collecting tube, are flowed out from the other end of straight-through vacuum thermal-collecting tube.
As Figure 3-Figure 4, a kind of solar air heat collection system further includes including above-mentioned straight-through vacuum thermal-collecting tube 1
Two spaced headers 3, the both ends of the straight-through vacuum thermal-collecting tube 1 are connect with two headers 3 respectively；On the header 3
Equipped with connecting hole 31, it is equipped with connection cover 2 in the connecting hole 31, the connection cover 2 is threadedly coupled with connector portions 15；Connection cover 2
Outer diameter be less than outer tube 2 outer diameter, can make 1 solid matter of straight-through vacuum thermal-collecting tube install；The one end of the connection cover 2 in header 3
Equipped with gear along 21, gear can prevent connection cover 2 from deviating from from connecting hole 31 along 21.Two connectors of straight-through vacuum thermal-collecting tube 1 when installation
Portion 15 is inserted into the connection cover 2 of two headers, and rotation straight-through vacuum thermal-collecting tube 1 is until connection is pushed down from inside in the gear edge of connection cover 2
Case 3.
Embodiment 2:
As shown in Fig. 5-Fig. 6, straight-through vacuum thermal-collecting tube of the invention, the inner tube including outer tube 11 and in outer tube 11
13, outer tube 11 and inner tube 13 are transparent glass tube；Said inner tube 13 is the straight pipe that both ends are equipped with opening, the outer tube
Vacuum chamber 12 is equipped between 11 and inner tube 13；Metal tube 14 is equipped in said inner tube 12, the outer wall of the metal tube 14 is equipped with
For absorbing the selective coating 141 of solar energy；The metal tube 14 is equipped with the notch 142 through its both ends, and notch 142 can
Facilitate metal tube to be packed into inner tube 13, and inner tube 13 will not be swarmed in when 14 expanded by heating of metal tube；The both ends of said inner tube 11
It is merged respectively with the both ends of outer tube 11 and is integrally formed two connector portions 15, the connector portions 15 are equipped with connection screw thread 151, described
Connection screw thread 151 is internal screw thread, connector portions 15 and inner tube 13 and the glass structure that outer tube 11 is integrated, and connection screw thread makes connector portions
Better tightness after 15 installations；The connection screw thread 151 of two connector portions 15 it is oppositely oriented, one for left hand thread, another
For right-handed thread, when straight-through vacuum thermal-collecting tube and two headers are installed, rotary feedthrough evacuated collector tube can simultaneously revolve its both ends
Tightly；The outer diameter of the connector portions 15 is less than the outer diameter of outer tube 11, and the connector portions 15 of small diameter keep straight-through vacuum thermal-collecting tube close
Row is mounted on header.
Embodiment 3:
As shown in Figs. 7-8, straight-through vacuum thermal-collecting tube of the invention, the inner tube including outer tube 11 and in outer tube 11
13, outer tube 11 and inner tube 13 are transparent glass tube；Said inner tube 13 is the straight pipe that both ends are equipped with opening, the outer tube
Vacuum chamber 12 is equipped between 11 and inner tube 13；Metal tube 14 is equipped in said inner tube 12, the outer wall of the metal tube 14 is equipped with
For absorbing the selective coating 141 of solar energy；The metal tube 14 is the sheet metal being rolled into a roll, coiled sheet metal can be square
Just metal tube 14, which is shunk, is packed into inner tube 13, and when 14 expanded by heating of metal tube will not swarm in inner tube 13, the both ends of said inner tube 11
It is merged respectively with the both ends of outer tube 11 and is integrally formed two connector portions 15, the connector portions 15 are equipped with connection screw thread 151, described
Connection screw thread 151 is external screw thread, connector portions 15 and inner tube 13 and the glass structure that outer tube 11 is integrated, and connection screw thread makes connector portions
Better tightness after 15 installations；The connection screw thread 151 of two connector portions 15 it is oppositely oriented, one for left hand thread, another
For right-handed thread, when straight-through vacuum thermal-collecting tube and two headers are installed, rotary feedthrough evacuated collector tube can simultaneously revolve its both ends
Tightly；The outer diameter of the connector portions 15 is less than the outer diameter of outer tube 11, and the connector portions 15 of small diameter keep straight-through vacuum thermal-collecting tube close
Row is mounted on header.
Sunlight passes through outer tube 11 and inner tube 13 is absorbed by the selective coating 141 of metal tube 14, and metal tube 14 is heated
Heating, cold air are flowed into from one end of straight-through vacuum thermal-collecting tube, are flowed out from the other end of straight-through vacuum thermal-collecting tube.
Embodiment 4:
As shown in Fig. 9-Figure 10, straight-through vacuum thermal-collecting tube of the invention, the inner tube including outer tube 11 and in outer tube 11
13, outer tube 11 and inner tube 13 are transparent glass tube；Said inner tube 13 is the straight pipe that both ends are equipped with opening, the outer tube
Vacuum chamber 12 is equipped between 11 and inner tube 13；Metal tube 14 is equipped in said inner tube 12, the outer wall of the metal tube 14 is equipped with
For absorbing the selective coating 141 of solar energy；The metal tube 14 is equipped with the notch 142 through its both ends, and notch 142 can
Facilitate metal tube to be packed into inner tube 13, and inner tube 13 will not be swarmed in when 14 expanded by heating of metal tube；It is set on the metal tube 14
There is the through-hole 143 for being connected to its surfaces externally and internally, the both ends of said inner tube 11 are merged with the both ends of outer tube 11 two integrally formed respectively
Connector portions 15, the connector portions 15 are equipped with connection screw thread 151, and the connection screw thread 151 is external screw thread, connector portions 15 and inner tube
13 and the glass structure that is integrated of outer tube 11, better tightness after connection screw thread installs connector portions 15；Two connector portions 15
Connection screw thread 151 it is oppositely oriented, one be left hand thread, another be right-handed thread, straight-through vacuum thermal-collecting tube and two connection
When case is installed, rotary feedthrough evacuated collector tube can simultaneously be screwed its both ends；The outer diameter of the connector portions 15 is less than outer tube 11
Outer diameter, the connector portions 15 of small diameter make straight-through vacuum thermal-collecting tube can solid matter be mounted on header.
Sunlight passes through outer tube 11 and inner tube 13 is absorbed by the selective coating 141 of metal tube 14, and metal tube 14 is heated
Heating, cold air are flowed into from one end of straight-through vacuum thermal-collecting tube, are flowed out from the other end of straight-through vacuum thermal-collecting tube.
Above-described, only presently preferred embodiments of the present invention cannot limit the range of this practical implementation, it is all according to
Equivalent change made by scope of the present invention patent and decoration, should still belong in the range of the present invention covers.
Claims (7)
1. straight-through vacuum thermal-collecting tube, the inner tube including outer tube and in outer tube, said inner tube are that both ends are equipped with the straight of opening
Siphunculus is equipped with vacuum chamber between the outer tube and inner tube；It is characterized by: being equipped with metal tube, the metal tube in said inner tube
Outer wall be equipped with selective coating for absorbing solar energy；The metal tube is equipped with the notch through its both ends；It is described
The both ends of inner tube are merged with the both ends of outer tube respectively is integrally formed two connector portions, and the connector portions are equipped with connection screw thread；Two
The connection screw thread of a connector portions it is oppositely oriented.
2. straight-through vacuum thermal-collecting tube according to claim 1, it is characterised in that: be filled between said inner tube and metal tube
Wire.
3. straight-through vacuum thermal-collecting tube according to claim 1, it is characterised in that: the outer diameter of the connector portions is less than outer tube
Outer diameter.
4. straight-through vacuum thermal-collecting tube according to claim 1, it is characterised in that: the metal tube, which is equipped with, is connected to interior appearance
The through-hole in face.
5. straight-through vacuum thermal-collecting tube according to claim 1, it is characterised in that: the metal tube is the sheet metal of web-like.
6. a kind of solar thermal collection system including straight-through vacuum thermal-collecting tube described in claim 1-5 any one, feature
It is: further includes two spaced headers, the both ends of the straight-through vacuum thermal-collecting tube is connect with two headers respectively.
7. solar thermal collection system according to claim 6, it is characterised in that: the header is equipped with connecting hole, described
Connection cover is equipped in connecting hole, the connection cover is threadedly coupled with connector portions；The one end of the connection cover in header is equipped with gear
Edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277015.1A CN105783286B (en) | 2016-04-30 | 2016-04-30 | Straight-through vacuum thermal-collecting tube and the solar air heat collection system assembled by it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277015.1A CN105783286B (en) | 2016-04-30 | 2016-04-30 | Straight-through vacuum thermal-collecting tube and the solar air heat collection system assembled by it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105783286A CN105783286A (en) | 2016-07-20 |
| CN105783286B true CN105783286B (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610277015.1A Active CN105783286B (en) | 2016-04-30 | 2016-04-30 | Straight-through vacuum thermal-collecting tube and the solar air heat collection system assembled by it |
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| CN (1) | CN105783286B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692465A (en) * | 2017-03-08 | 2018-10-23 | 青岛经济技术开发区海尔热水器有限公司 | Solar water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216817A (en) * | 1997-10-30 | 1999-05-19 | 中国科学院工程热物理研究所 | Metallic solar energy vacuum collector |
| CN2482028Y (en) * | 2001-06-15 | 2002-03-13 | 张建城 | Solar vacuum heat-collecting tube |
| CN103635770A (en) * | 2011-06-30 | 2014-03-12 | 日本碍子株式会社 | Heat exchange member |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182046A (en) * | 1981-04-30 | 1982-11-09 | Hitachi Ltd | Vacuum tube type solar heat collector |
| CN2037050U (en) * | 1988-08-26 | 1989-05-03 | 贝聿昆 | Air-heating type all-weather solar heat collector |
| CN1216817C (en) * | 2002-07-11 | 2005-08-31 | 一品光学工业股份有限公司 | Metal mold of moulding glass |
| CN2709874Y (en) * | 2004-04-13 | 2005-07-13 | 赵宝善 | Straight glass-metal vacuum solar heater collection pipe capable of used as construction component |
| CN1916525B (en) * | 2006-09-08 | 2010-05-12 | 南京工业大学 | Medium-temperature heat pipe receiver for solar thermal power generation |
| CN101446449B (en) * | 2008-12-07 | 2010-12-01 | 许洪 | Low-price water and gas dual-purpose vacuum heat collecting pipe and heating device thereof |
| CN205957507U (en) * | 2016-04-30 | 2017-02-15 | 福建省茂盛建设工程有限公司 | Novel direct evacuated collector tube reaches solar energy air solar collecting system by its equipment |
-
2016
- 2016-04-30 CN CN201610277015.1A patent/CN105783286B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216817A (en) * | 1997-10-30 | 1999-05-19 | 中国科学院工程热物理研究所 | Metallic solar energy vacuum collector |
| CN2482028Y (en) * | 2001-06-15 | 2002-03-13 | 张建城 | Solar vacuum heat-collecting tube |
| CN103635770A (en) * | 2011-06-30 | 2014-03-12 | 日本碍子株式会社 | Heat exchange member |
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| Publication number | Publication date |
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| CN105783286A (en) | 2016-07-20 |
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