CN203396134U - Bushing-type solar heat collecting tube - Google Patents
Bushing-type solar heat collecting tube Download PDFInfo
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- CN203396134U CN203396134U CN201320410697.0U CN201320410697U CN203396134U CN 203396134 U CN203396134 U CN 203396134U CN 201320410697 U CN201320410697 U CN 201320410697U CN 203396134 U CN203396134 U CN 203396134U
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- metal
- metal outer
- working medium
- outer pipe
- tube
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- 239000002184 metal Substances 0.000 claims abstract description 156
- 239000011521 glass Substances 0.000 claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910000833 kovar Inorganic materials 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000008676 import Effects 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- -1 absorbed Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a bushing-type solar heat collecting tube and belongs to the technical field of energy sources and environment. The bushing-type solar heat collecting tube comprises a vacuum glass tube, a metal inner tube, a metal outer tube, fins, a kovar alloy, a metal outer tube working medium inlet-outlet and a metal inner tube working medium inlet-outlet, wherein the metal inner tube is arranged in the metal outer tube; the metal inner tube is positioned at an opening in one end in the metal outer tube and is communicated with the metal outer tube to form an annular runner; the metal outer tube is arranged in the vacuum glass tube through the kovar alloy in a sealing manner; the metal outer tube is positioned on the wall surface outside the vacuum glass tube and is provided with the metal outer tube working medium inlet-outlet; the metal inner tube is positioned on one end outside the metal outer tube and is provided with the metal inner tube working medium inlet-outlet; the outer wall, along the axis direction, of the metal outer tube is symmetrically provided with multiple pairs of fins. The bushing-type solar heat collection tube can be used for heating a liquid working medium, so that the heating speed of the heated working medium is increased, the heat loss of the heat collecting tube is reduced, further the heat collection efficiency is improved, and meanwhile the production technology is also simplified.
Description
Technical field
The utility model relates to a kind of extension-type solar thermal-collecting tube, belongs to energy and environment technical field.
Background technology
The radiant power of the sun reaches 3.8 * 10
23kW, wherein, approximately 1.08 * 10
14kW is radiated earth surface.It is estimated, the sun is radiated tellurian energy within January, can support 10 times more than of all non-renewable energy resources gross reserves that comprise fossil fuel, atomic energy etc. on the earth, and solar energy is really inexhaustible, the nexhaustible energy.China belongs to the quite abundant country of solar energy resources, and an area year sunshine time for area 2/3 is greater than 2200h, and unit are solar radiation total amount is higher than 5016MJ/m2.The solar energy that development and utilization aboundresources, distribution are extremely wide, when providing clean energy resource to the mankind, can also reach the requirement of zero pollution and zero-emission, can greatly accelerate and promote the realization of China's target for energy-saving and emission-reduction.
Number of patent application is 200910308792.8 to have announced a kind of " high temperature air heating device in extension-type solar ", and high temperature air heating device in the extension-type solar of this solar energy heating technical field, comprises some thermal-collecting tubes and corresponding Accumulated Heat Units.This apparatus structure is simple, and the thermal efficiency is high, when this device still exists following deficiency: (1) this device is mainly used in adding hot-air, not for heating liquid working medium; (2) this device is coated in vacuum glass pipe internal surface by coating for selective absorption, need between vacuum glass pipe internal surface and metal tube, install transmitting medium additional like this, has increased heat transfer resistance; (3) this device installs elastic corrugated floor additional in order to strengthen heat exchange between metal inner pipe and outer tube, has increased process complexity.
Summary of the invention
The deficiency that the utility model exists for prior art, provides a kind of extension-type solar thermal-collecting tube.This extension-type solar thermal-collecting tube can be used for heating liquid working medium, has improved the heating rate that is heated working medium, has reduced the heat loss of thermal-collecting tube, and then has improved collecting efficiency, has also simplified production technology simultaneously, and the utility model is realized by following technical proposal.
A kind of extension-type solar thermal-collecting tube, comprise glass tube with vacuum 1, metal inner pipe 2, metal outer pipe 3, fin 4, kovar alloy 5, metal outer pipe working medium is imported and exported 6 and is imported and exported 7 with metal inner pipe working medium, described metal inner pipe 2 is installed in metal outer pipe 3, metal inner pipe 2 is positioned at an end opening of metal outer pipe 3 and the formation annular channel that communicates with metal outer pipe 3, metal outer pipe 3 is contained in glass tube with vacuum 1 by kovar alloy 5 sealings, the wall that metal outer pipe 3 is positioned at outside glass tube with vacuum 1 is provided with metal outer pipe working medium import and export 6, metal inner pipe 2 is positioned at metal outer pipe 3 Wai one end and is provided with metal inner pipe working medium import and export 7, the outer wall that metal outer pipe 3 is prolonged axis direction is symmetrically installed with fin 4.
Described metal inner pipe 2 is all rolled into screw-like with the inner and outer wall of metal outer pipe 3.The shapes such as screw-like can increase convective heat-transfer coefficient.
The outside wall surface of described metal outer pipe 3 scribbles coating for selective absorption.
Described fin 4 scribbles coating for selective absorption, symmetrical fin 4 quantity of installing be a pair of more than.
In described extension-type solar thermal-collecting tube, be heated working medium and enter from metal inner pipe 2, after being heated, from metal outer pipe 3, out or from metal outer pipe 3 enter, after being heated from metal inner pipe 2 out.
Operation principle of the present utility model is: solar radiation sees through glass tube with vacuum, be irradiated on metal outer pipe 3 outer walls and fin 4, by selective coating, absorbed, metal outer pipe 3 outer walls and fin 4 temperature rise, then by heat, pass to the working medium that is heated in metal outer pipe 3, make its heating.
Extension-type solar thermal-collecting tube is heated working medium two kinds of types of flow: (1) is heated working medium and enters from metal inner pipe 2, from metal outer pipe 3 out; (2) be heated working medium and enter from metal outer pipe 3, metal inner pipe 2 out.
When adopting the first type of flow, being heated working medium metal inner pipe working medium import and export 7 from metal inner pipe 2 flow in metal outer pipe 3, then after being heated working medium heating, from metal outer pipe working medium, importing and exporting 6 and flow out, in this process from metal inner pipe working medium import and export 7 flow into be heated working medium and can be installed in metal inner pipe 2 and the heating working medium of 3 of metal outer pipe passes through thermaltransmission mode preheating, this preheating method has reduced the heat loss of thermal-collecting tube, has improved the thermal efficiency.
When adopting the second type of flow, being heated working medium flow into metal outer pipe 3 from metal outer pipe working medium import and export 6, then after being heated working medium heating, from metal inner pipe working medium, importing and exporting 7 and flow out, in this process from metal outer pipe working medium import and export 6 flow into be heated heating working medium that working medium can be installed in metal inner pipe 2 by thermaltransmission mode preheating, this preheating method reduces the heat loss of thermal-collecting tube, has improved the thermal efficiency.
The beneficial effects of the utility model are: (1) this device can be used for heating liquid working medium; (2) coating for selective absorption of this device is coated on metal outer pipe wall and fin, make device better to the assimilation effect of solar radiation heat, can make the running temperature of vacuum tube glass decline, when reducing heat waste, also extended the service life of vacuum tube simultaneously; (3) metal inner pipe inwall and the outer wall of this device, the inwall of metal outer pipe is rolled into the shapes such as screw-like, has effectively increased convective heat-transfer coefficient, and then has increased heat transfer efficiency; (4) this device adopts the annular space setting of metal inner pipe and metal outer pipe collocation, by being heated working medium, porch working medium is carried out to preheating, has improved the heating rate of working medium; (5) this device is provided with the stress that kovar alloy has avoided the thermal expansion difference between glass tube with vacuum and metal outer pipe to cause; (6) this device only has one end to be connected and sealed, and has simplified production technology, and has further reduced the heat loss of thermal-collecting tube.
Accompanying drawing explanation
Fig. 1 is that the master of the utility model extension-type solar thermal-collecting tube looks cutaway view;
Fig. 2 is that cutaway view is looked on a left side for the utility model extension-type solar thermal-collecting tube.
In figure: 1-glass tube with vacuum, 2-metal inner pipe, 3-metal outer pipe, 4-fin, 5-kovar alloy, 6-metal outer pipe working medium is imported and exported, and 7-metal inner pipe working medium is imported and exported.
The specific embodiment
Below in conjunction with accompanying drawing 1,2 and the specific embodiment, the utility model is described in further detail.
As Fig. 1, shown in 2, this extension-type solar thermal-collecting tube device comprises glass tube with vacuum 1, metal inner pipe 2, metal outer pipe 3, fin 4, kovar alloy 5, metal outer pipe working medium is imported and exported 6 and is imported and exported 7 with metal inner pipe working medium, described metal inner pipe 2 is installed in metal outer pipe 3, metal inner pipe 2 is positioned at an end opening of metal outer pipe 3 and the formation annular channel that communicates with metal outer pipe 3, metal outer pipe 3 is contained in glass tube with vacuum 1 by kovar alloy 5 sealings, the wall that metal outer pipe 3 is positioned at outside glass tube with vacuum 1 is provided with metal outer pipe working medium import and export 6, metal inner pipe 2 is positioned at metal outer pipe 3 Wai one end and is provided with metal inner pipe working medium import and export 7, the outer wall that metal outer pipe 3 is prolonged axis direction is symmetrically installed with a pair of fin 4, wherein the inner and outer wall of metal inner pipe 2 and metal outer pipe 3 is rolled into screw-like shapes such as (can increase convective heat-transfer coefficient) screw-like, the outside wall surface of metal outer pipe 3 and fin 4 scribble coating for selective absorption.
In this extension-type solar thermal-collecting tube, be heated working medium and enter from metal inner pipe 2, after being heated from metal outer pipe 3 out.
As Fig. 1, shown in 2, this extension-type solar thermal-collecting tube device comprises glass tube with vacuum 1, metal inner pipe 2, metal outer pipe 3, fin 4, kovar alloy 5, metal outer pipe working medium is imported and exported 6 and is imported and exported 7 with metal inner pipe working medium, described metal inner pipe 2 is installed in metal outer pipe 3, metal inner pipe 2 is positioned at an end opening of metal outer pipe 3 and the formation annular channel that communicates with metal outer pipe 3, metal outer pipe 3 is contained in glass tube with vacuum 1 by kovar alloy 5 sealings, the wall that metal outer pipe 3 is positioned at outside glass tube with vacuum 1 is provided with metal outer pipe working medium import and export 6, metal inner pipe 2 is positioned at metal outer pipe 3 Wai one end and is provided with metal inner pipe working medium import and export 7, the outer wall that metal outer pipe 3 is prolonged axis direction is symmetrically installed with two pairs of fins 4, wherein the inner and outer wall of metal inner pipe 2 and metal outer pipe 3 is rolled into screw-like shapes such as (can increase convective heat-transfer coefficient) screw-like, the outside wall surface of metal outer pipe 3 and fin 4 scribble coating for selective absorption.
In this extension-type solar thermal-collecting tube, be heated working medium and enter from metal outer pipe 3, after being heated from metal inner pipe 2 out.
As Fig. 1, shown in 2, this extension-type solar thermal-collecting tube device comprises glass tube with vacuum 1, metal inner pipe 2, metal outer pipe 3, fin 4, kovar alloy 5, metal outer pipe working medium is imported and exported 6 and is imported and exported 7 with metal inner pipe working medium, described metal inner pipe 2 is installed in metal outer pipe 3, metal inner pipe 2 is positioned at an end opening of metal outer pipe 3 and the formation annular channel that communicates with metal outer pipe 3, metal outer pipe 3 is contained in glass tube with vacuum 1 by kovar alloy 5 sealings, the wall that metal outer pipe 3 is positioned at outside glass tube with vacuum 1 is provided with metal outer pipe working medium import and export 6, metal inner pipe 2 is positioned at metal outer pipe 3 Wai one end and is provided with metal inner pipe working medium import and export 7, the outer wall that metal outer pipe 3 is prolonged axis direction is symmetrically installed with five pairs of fins 4, wherein the inner and outer wall of metal inner pipe 2 and metal outer pipe 3 is rolled into screw-like shapes such as (can increase convective heat-transfer coefficient) screw-like, the outside wall surface of metal outer pipe 3 and fin 4 scribble coating for selective absorption.
In this extension-type solar thermal-collecting tube, be heated working medium and enter from metal outer pipe 3, after being heated from metal inner pipe 2 out.
Claims (5)
1. an extension-type solar thermal-collecting tube, it is characterized in that: comprise glass tube with vacuum (1), metal inner pipe (2), metal outer pipe (3), fin (4), kovar alloy (5), metal outer pipe working medium is imported and exported (6) and is imported and exported (7) with metal inner pipe working medium, described metal inner pipe (2) is installed in metal outer pipe (3), metal inner pipe (2) is positioned at an end opening of metal outer pipe (3) and the formation annular channel that communicates with metal outer pipe (3), metal outer pipe (3) is contained in glass tube with vacuum (1) by kovar alloy (5) sealing, metal outer pipe (3) is positioned at the outer wall of glass tube with vacuum (1) and is provided with metal outer pipe working medium import and export (6), metal inner pipe (2) is positioned at metal outer pipe (3) Wai one end and is provided with metal inner pipe working medium import and export (7), the outer wall that metal outer pipe (3) is prolonged axis direction is symmetrically installed with fin (4).
2. extension-type solar thermal-collecting tube according to claim 1, is characterized in that: described metal inner pipe (2) is rolled into screw-like with the inner and outer wall of metal outer pipe (3).
3. extension-type solar thermal-collecting tube according to claim 1, is characterized in that: the outside wall surface of described metal outer pipe (3) scribbles coating for selective absorption.
4. extension-type solar thermal-collecting tube according to claim 1, is characterized in that: described fin (4) scribbles coating for selective absorption, symmetrical fin (4) quantity of installing be a pair of more than.
5. extension-type solar thermal-collecting tube according to claim 1, it is characterized in that: in described extension-type solar thermal-collecting tube, be heated working medium and enter from metal inner pipe (2), after being heated, from metal outer pipe (3), out or from metal outer pipe (3) enter, after being heated from metal inner pipe (2) out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320410697.0U CN203396134U (en) | 2013-07-11 | 2013-07-11 | Bushing-type solar heat collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320410697.0U CN203396134U (en) | 2013-07-11 | 2013-07-11 | Bushing-type solar heat collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396134U true CN203396134U (en) | 2014-01-15 |
Family
ID=49907661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320410697.0U Expired - Fee Related CN203396134U (en) | 2013-07-11 | 2013-07-11 | Bushing-type solar heat collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776623A (en) * | 2015-04-14 | 2015-07-15 | 南京诚远太阳能科技有限公司 | Single-end and U-shaped-passage solar mesothermal heat collection pipe |
-
2013
- 2013-07-11 CN CN201320410697.0U patent/CN203396134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776623A (en) * | 2015-04-14 | 2015-07-15 | 南京诚远太阳能科技有限公司 | Single-end and U-shaped-passage solar mesothermal heat collection pipe |
| CN104776623B (en) * | 2015-04-14 | 2017-01-25 | 南京诚远太阳能科技有限公司 | Single-end and U-shaped-passage solar mesothermal heat collection pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140711 |
|
| EXPY | Termination of patent right or utility model |