CN102367999A - High-efficiency solar heat collector - Google Patents
High-efficiency solar heat collector Download PDFInfo
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- CN102367999A CN102367999A CN2011103704154A CN201110370415A CN102367999A CN 102367999 A CN102367999 A CN 102367999A CN 2011103704154 A CN2011103704154 A CN 2011103704154A CN 201110370415 A CN201110370415 A CN 201110370415A CN 102367999 A CN102367999 A CN 102367999A
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- layer metal
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- inner layer
- outer layer
- sealing flange
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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 invention relates to a high-efficiency solar heat collector which comprises a heat exchanger tube driven by a solar tracker and a condenser mirror, wherein the heat exchanger tube is composed of inner layer metal tubes and an outer layer metal tube; the cross section of the condenser mirror is a curved surface, the heat exchanger tube is positioned on a focusing axial line of the curved surface of the condenser mirror, and the outer layer metal tube facing to the condenser mirror is provided with a ray entrance window; the outer layer metal tube is also provided with a glass tube, the two ends of the outer layer metal tube are provided with a metal sealing flange, the two ends of the glass tube are hermetically connected with the metal sealing flange, and the outer walls of the two ends of the glass tube are hermetically connected with the inner wall of the outer layer metal tube; a group of the inner layer metal tubes are positioned in the glass tube, the two ends of each inner layer metal tube are fixedly supported on the metal sealing flange through a ceramic flange, and the end part of each inner layer metal tube passes through the metal sealing flange so as to stretch out of the end face of the outer layer metal tube; and at least an expansion-proof corrugated pipe section is arranged on the group of the inner layer metal tubes in the heat exchanger tube or the glass tube, and a cavity of the glass tube is a vacuum cavity.
Description
Technical field
The present invention relates to a kind of high-efficiency solar heat trap.
Background technology
Solar energy is a kind of high efficient energy sources, and can not cause environmental pollution, and along with development of science and technology, the application of solar energy is more and more wider.
In many Application of Solar Energy field, solar thermal collector has focusing solar thermal collector than early being used by people, and the endothermic solar heat collector is also arranged, and uses more extensive with the endothermic solar heat collector especially.
In the endothermic solar heat collector, having a kind of is to adopt efficient endothermic tube, is the glass blind pipe suit by two different diameters, and beginning end flame burns and melts sealing-in and vacuumize and process.This heating tube, its glass tube that adopts transportation, install and the process used in very easily damage, and when installing owing to have the gap between pipe, the unit are heat absorption efficiency is descended.Also having a kind of is traditional flat-plate collector, and it mainly is the heat that absorbs the sun through the thermal-arrest plate, directly transmits one group of water pipe, makes the liquid in the water pipe obtain heat.This solar heat permutoid, though structure is simple, a large amount of heat energy that absorb scatter and disappear through light penetrating panel again, so efficient is not high.
No matter be which kind of heat collector, its solar heat permutoid all is to be exposed in the natural environment, in the convection current of air, in the conduction, tends to lose a part of part heat, influences solar energy utilization rate.
The applicant had once submitted to name to be called the invention and the utility application of " solar thermal collector " on July 14th, 2011 to Patent Office of the People's Republic of China; Their application number is respectively 201110196782.7 and 201120247878.7, and we find in the practice, owing to taked provision for thermal insulation between the inside and outside metal tube; And will inevitably expand after the interior pipe heat absorption; Under the situation of sealed at both ends location, the expansion space of having limited interior pipe again will inevitably have influence on the operate as normal of solar thermal collector.
Summary of the invention
The objective of the invention is to: to the processing cost of present solar heat permutoid existence; Or the thermal efficiency is not high; Or volume is excessive; Or the technological deficiency that a series of problems, especially applicant's such as composite assembly difficulty above-mentioned application exists in using, a kind of new high-efficiency solar heat trap is provided.
The objective of the invention is to realize like this: a kind of high-efficiency solar heat trap comprises heat-exchange tube and condenser mirror that solar tracking device drives; Heat-exchange tube is made up of inner layer metal pipe and outer layer metal tube; The inner layer metal pipe is wrapped in the outer layer metal tube; The outer layer metal tube two ends are sealing flange, and the two ends of inner layer metal pipe are passed through sealing flange and stretched out outer layer metal tube, and mobile heat exchange medium is arranged in the inner layer metal pipe; The cross section of condenser mirror is a curved surface; Heat-exchange tube places on the focusing axis of condenser mirror mean camber; Outer layer metal tube towards condenser mirror is provided with the light entrance window, and the light entrance window is furnished with the support frame that is solidified as a whole, and sealing is installed with transparent glass in the described support frame; Be covered with reflectance coating on the metal inner surface of outer layer metal tube; It is characterized in that:
A) also be provided with glass tube in the outer layer metal tube, glass tube two ends and sealing flange are tightly connected through end-face seal ring, also are provided with the outer wall sealing ring between two ends and the outer layer metal inside pipe wall, and the chamber between the two outer wall sealing rings is an annular seal space; One group of inner layer metal pipe box is contained in the glass tube, and two ends are passed through sealing flange and stretched out outer layer metal tube;
B) be provided with one section anti-expansion bellows at least on one group of inner layer metal pipe.
In the present invention, described one group of inner layer metal Guan Weiyi root inner layer metal pipe, the inner layer metal pipe is provided with heat absorbing sheet.
In the present invention, described heat absorbing sheet is the fin that laterally arranges.
In the present invention, comprise at least in described one group of inner layer metal pipe comprising two inner layer metal pipes in two replace tubes at least that outer layer metal tube is all stretched out at the two ends of each inner layer metal pipe, every inner layer metal pipe is equipped with and is provided with described anti-expansion bellows; Described one group of inner layer metal pipe or for containing the assembly of at least two inner layer metal pipes; Be fixedly supported to the metal sealing flange by a metal house steward through ceramic flange again after each inner layer metal pipe two ends is converged in the assembly, described anti-expansion bellows is located at and converges on the metal tube of back.
In the present invention, the outer layer metal tube two ends are provided with heat abstractor, and heat abstractor is connected with outer layer metal tube two ends and sealing flange.Described heat abstractor can be the heat dissipation pipe who is coiled on outer layer metal tube two ends and the sealing flange, also can be mounted in the fin on outer layer metal tube two ends and the sealing flange, or by their combination.
In the present invention, described sealing flange is a ceramic flange.
In the present invention, one section anti-expansion bellows also can be set at least on the described glass tube.
In the present invention, described annular seal space is that vacuum is 1.33 * 10
-1~ 1.33 * 10
-5The vacuum chamber of Pa.
In the present invention, can be placed with getter in the described vacuum chamber.
The invention has the advantages that: because heat-exchange tube is by inner layer metal pipe, glass tube and outer layer metal tube; The inner layer metal pipe is wrapped in the glass tube, is that annular seal space, especially annular seal space are vacuum chamber between glass tube and the outer layer metal tube; Be placed with getter in the vacuum chamber; Can keep the vacuum in the chamber, these measures can stop heat to the outer layer metal tube transmission, have improved the operating efficiency of solar thermal collector; Owing to be provided with one section anti-expansion bellows at least on one group of inner layer metal pipe, can eliminate the stress that forms because of expanding with heat and contract with cold in the inner layer metal plumber work, guarantee the heat-exchange tube operate as normal; Because the outer layer metal tube two ends are provided with heat abstractor, can reduce the temperature of sealing flange effectively, improve the condition of work of sealing ring, guarantee that the end has the better seal effect; Because the cross section of condenser mirror is a curved surface, heat-exchange tube places on the focusing axis of condenser mirror mean camber, is provided with the light entrance window towards the outer layer metal tube of condenser mirror, can guarantee that heat-exchange tube is put can obtain more solar energy; Be furnished with the support frame that is solidified as a whole on the light entrance window, possibility be provided for sealing is installed with transparent glass.
Description of drawings
Fig. 1 is a kind of example structure sketch map of the heat-exchange tube that the present invention relates to;
Fig. 2 is the another kind of example structure sketch map of the heat-exchange tube that the present invention relates to;
Fig. 3 is another example structure sketch map of the heat-exchange tube that the present invention relates to.
Among the figure: 1: the inner layer metal pipe; 2: the metal sealing flange; 3: end-face seal ring; 4: the ceramic seal flange; 5: the outer wall sealing ring; 6: anti-expansion bellows; 7: glass tube; 8: outer layer metal tube; 9: the light entrance window; 10: vacuum chamber; 11: heat absorbing sheet; 12: annular seal space; 13: the transition circle; 14: heat abstractor.
The specific embodiment
The present invention includes heat-exchange tube and condenser mirror that solar tracking device drives; The cross section of condenser mirror is a curved surface, and heat-exchange tube places on the focusing axis of condenser mirror mean camber, is provided with the light entrance window towards the outer layer metal tube of condenser mirror; The light entrance window is furnished with the support frame that is solidified as a whole; Sealing is installed with transparent glass in the described support frame, and wherein, solar tracking device drives and is the existing known technology of this area; Condenser mirror and concern that with the position of heat-exchange tube the applicant has been open in 201110196782.7 and 201120247878.7 one Chinese patent application at application number, all no longer relates in the accompanying drawing.
Accompanying drawing discloses the concrete structure of heat-exchange tube embodiment without limitation, below in conjunction with accompanying drawing the present invention is done further description.
Visible by Fig. 1; Heat-exchange tube comprises outer layer metal tube 8, glass tube 7 and inner layer metal pipe 1 wherein; Outer layer metal tube 8 two ends are provided with metal sealing flange 2; Glass tube 7 two ends are connected with metal sealing flange 2 through end-face seal ring 3, and glass tube 2 two ends outer walls form annular seal space 12 through being tightly connected between outer wall sealing ring 5 and outer layer metal tube 8 inwalls between the two outer wall sealing rings 5; One group of inner layer metal pipe 1 is sleeved in the glass tube 7, and the two ends of inner layer metal pipe box 1 are fixedly supported to metal sealing flange 2 through ceramic flange 4, and the end is passed through metal sealing flange 2 and stretched out outer layer metal tube 8; The inner chamber of glass tube 7 is a vacuum chamber 10; At least be provided with one section anti-expansion bellows 6 on one group of inner layer metal pipe 1 in the heat-exchange tube or the glass tube 7; Outer layer metal tube 8 towards condenser mirror is provided with light entrance window 9, and light entrance window 9 is furnished with the support frame that is solidified as a whole, and sealing is installed with transparent glass in the described support frame.
In the present embodiment, described one group of inner layer metal pipe 1 has only an inner layer metal pipe, and described anti-expansion bellows 6 is located on the inner layer metal pipe.
Visible by Fig. 2; The main distinction of present embodiment and Fig. 1 is; On one group of inner layer metal pipe 1 and glass tube 7, be equipped with two sections anti-expansion bellowss 6; Wherein the anti-expansion bellows 6 of two sections on the glass tube 7 is located at two end faces of glass tube 7, and an end of anti-expansion bellows 6 and outer layer metal tube 8 are through the 13 sealing welding of transition circle, and the other end is connected with the end face seal of glass tube 7.
Visible by Fig. 3, the main distinction of present embodiment and Fig. 2 is that one group of inner layer metal pipe 1 is provided with heat absorbing sheet 11, the fin of described heat absorbing sheet 11 for laterally arranging.The anti-expansion bellows 6 metal sealing flanges welding at glass tube 7 two ends, the other end is connected with the end face seal of glass tube 7.Also be provided with heat abstractor 14 at outer layer metal tube 1 two ends, described heat abstractor 14 is connected with outer layer metal tube 8 two ends and metal sealing flange 2.
Except that the foregoing description; During practical implementation; Inner layer metal pipe 1 in described one group of inner layer metal pipe also can adopt many independently inner layer metal pipes, and each independently all is fixedly supported to respectively on the metal sealing flange 2 through ceramic flange 4 at inner layer metal pipe two ends; Or adopt the assembly that contains many inner layer metal pipes, be fixedly supported on the metal sealing flange 2 through ceramic flange 4 by a metal tube again after each inner layer metal pipe two ends is converged in the assembly.
During practical implementation, described heat abstractor 14 can be the heat dissipation pipe who is coiled on outer layer metal tube 8 two ends and the metal sealing flange 2, or is installed in the fin on outer layer metal tube 8 two ends and the metal sealing flange 2, or adopts their combination simultaneously.
During practical implementation, described annular seal space 12 also is a vacuum chamber, and the vacuum of described annular seal space 12 and vacuum chamber 10 is 1.33 * 10
-1~ 1.33 * 10
-5Pa.In annular seal space 12 and vacuum chamber 10, all be placed with getter, to guarantee keeping certain vacuum in the vacuum chamber 10.
Claims (10)
1. a high-efficiency solar heat trap comprises heat-exchange tube and condenser mirror that solar tracking device drives; Heat-exchange tube is made up of inner layer metal pipe and outer layer metal tube; The inner layer metal pipe is wrapped in the outer layer metal tube; The outer layer metal tube two ends are sealing flange, and the two ends of inner layer metal pipe are passed through sealing flange and stretched out outer layer metal tube, and mobile heat exchange medium is arranged in the inner layer metal pipe; The cross section of condenser mirror is a curved surface; Heat-exchange tube places on the focusing axis of condenser mirror mean camber; Outer layer metal tube towards condenser mirror is provided with the light entrance window, and the light entrance window is furnished with the support frame that is solidified as a whole, and sealing is installed with transparent glass in the described support frame; Be covered with reflectance coating on the metal inner surface of outer layer metal tube; It is characterized in that:
A) also be provided with glass tube in the outer layer metal tube; The outer layer metal tube two ends are provided with the metal sealing flange; Glass tube two ends and metal sealing flange are tightly connected; Be tightly connected between glass tube two ends outer wall and the outer layer metal inside pipe wall, the chamber between glass tube outer wall and the outer layer metal inside pipe wall is an annular seal space; One group of inner layer metal pipe places glass tube, and the two ends of inner layer metal pipe are fixedly supported to the metal sealing flange through ceramic flange, and the end is passed through the metal sealing flange and stretched out the outer layer metal tube end face;
B) be provided with one section anti-expansion bellows at least on one group of inner layer metal pipe in the heat-exchange tube or the glass tube;
C) inner chamber of glass tube is a vacuum chamber.
2. high-efficiency solar heat trap according to claim 1; It is characterized in that; Described glass tube two ends and metal sealing flange are tightly connected; Be tightly connected between glass tube two ends outer wall and the outer layer metal inside pipe wall, the chamber between described glass tube outer wall and the outer layer metal inside pipe wall is that annular seal space is meant: glass tube two ends outer wall is through being tightly connected between outer wall sealing ring and the outer layer metal inside pipe wall, and the chamber between the two outer wall sealing rings is an annular seal space.
3. high-efficiency solar heat trap according to claim 2 is characterized in that, described annular seal space is a vacuum chamber; Described one group of inner layer metal Guan Weiyi root inner layer metal pipe, heat absorbing sheet is located on the inner layer metal pipe.
4. high-efficiency solar heat trap according to claim 3 is characterized in that, described heat absorbing sheet is the fin that laterally arranges.
5. high-efficiency solar heat trap according to claim 1; It is characterized in that; Inner layer metal pipe in described one group of inner layer metal pipe is at least two inner layer metal pipes independently, and each independently all is fixedly supported to the metal sealing flange respectively through ceramic flange in inner layer metal pipe two ends; Described one group of inner layer metal pipe or for containing the assembly of at least two inner layer metal pipes is fixedly supported to the metal sealing flange by a metal house steward through ceramic flange after each inner layer metal pipe two ends is converged in the assembly again.
6. high-efficiency solar heat trap according to claim 5 is characterized in that, described bellows is located at each respectively independently on the inner layer metal pipe, or is located on the metal house steward of assembly.
7. according to the described high-efficiency solar heat trap of one of claim 1 ~ 6, it is characterized in that the outer layer metal tube two ends are provided with heat abstractor, heat abstractor is connected with outer layer metal tube two ends and metal sealing flange.
8. high-efficiency solar heat trap according to claim 7; It is characterized in that; Described heat abstractor is the heat dissipation pipe who is coiled on outer layer metal tube two ends and the metal sealing flange; Or be installed in the fin on outer layer metal tube two ends and the metal sealing flange, or adopt their combination simultaneously.
9. high-efficiency solar heat trap according to claim 7 is characterized in that, the vacuum of said vacuum chamber is 1.33 * 10
-1~ 1.33 * 10
-5Pa.
10. high-efficiency solar heat trap according to claim 9 is characterized in that, is placed with getter in the described vacuum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103704154A CN102367999A (en) | 2011-11-21 | 2011-11-21 | High-efficiency solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103704154A CN102367999A (en) | 2011-11-21 | 2011-11-21 | High-efficiency solar heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367999A true CN102367999A (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103704154A Pending CN102367999A (en) | 2011-11-21 | 2011-11-21 | High-efficiency solar heat collector |
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| Country | Link |
|---|---|
| CN (1) | CN102367999A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721215A (en) * | 2012-07-10 | 2012-10-10 | 朱雷 | Metal vacuum high-temperature heat collection pipe |
| CN108088098A (en) * | 2018-02-08 | 2018-05-29 | 广州聚能太阳能科技有限公司 | A kind of fluid delivery structure for straight-through type solar energy heat collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592849A (en) * | 1978-12-28 | 1980-07-14 | Sanyo Electric Co Ltd | Solar heat collector |
| JPS5646758U (en) * | 1979-09-13 | 1981-04-25 | ||
| CN2476769Y (en) * | 2001-03-16 | 2002-02-13 | 靳广智 | Straight type glass-metal solar vacuum heat collection pipe |
| CN2738167Y (en) * | 2004-10-22 | 2005-11-02 | 张建城 | High temperature resisting and anti high pressure metal runner solar vacuum heat collecting tube |
| CN2913965Y (en) * | 2006-04-28 | 2007-06-20 | 张建城 | Line focusing metallic flow passage solar energy vacuum thermal-collecting tube |
| CN102242976A (en) * | 2011-07-14 | 2011-11-16 | 朱雷 | Solar heat collector |
-
2011
- 2011-11-21 CN CN2011103704154A patent/CN102367999A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592849A (en) * | 1978-12-28 | 1980-07-14 | Sanyo Electric Co Ltd | Solar heat collector |
| JPS5646758U (en) * | 1979-09-13 | 1981-04-25 | ||
| CN2476769Y (en) * | 2001-03-16 | 2002-02-13 | 靳广智 | Straight type glass-metal solar vacuum heat collection pipe |
| CN2738167Y (en) * | 2004-10-22 | 2005-11-02 | 张建城 | High temperature resisting and anti high pressure metal runner solar vacuum heat collecting tube |
| CN2913965Y (en) * | 2006-04-28 | 2007-06-20 | 张建城 | Line focusing metallic flow passage solar energy vacuum thermal-collecting tube |
| CN102242976A (en) * | 2011-07-14 | 2011-11-16 | 朱雷 | Solar heat collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721215A (en) * | 2012-07-10 | 2012-10-10 | 朱雷 | Metal vacuum high-temperature heat collection pipe |
| CN108088098A (en) * | 2018-02-08 | 2018-05-29 | 广州聚能太阳能科技有限公司 | A kind of fluid delivery structure for straight-through type solar energy heat collector |
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Application publication date: 20120307 |