CN202393052U - Heat transfer enhanced heat collection tube for solar thermal power generation - Google Patents
Heat transfer enhanced heat collection tube for solar thermal power generation Download PDFInfo
- Publication number
- CN202393052U CN202393052U CN 201120561571 CN201120561571U CN202393052U CN 202393052 U CN202393052 U CN 202393052U CN 201120561571 CN201120561571 CN 201120561571 CN 201120561571 U CN201120561571 U CN 201120561571U CN 202393052 U CN202393052 U CN 202393052U
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- CN
- China
- Prior art keywords
- thermal
- solar energy
- metal inner
- inner pipe
- tube
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- 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 - Lifetime
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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
Abstract
The utility model discloses a heat transfer enhanced heat collection tube for solar thermal power generation, which comprises a metal inner tube, wherein a thread or bulge is arranged on the inner surface of the metal inner tube, due to the enhanced heat transfer effect of the metal thread tube of the solar heat collection tube, the heat can be adequately transferred to a medium, thus the heat transfer efficiency is increased, the medium temperature is improved, meanwhile the temperature of the tube wall of the heat collection tube is more uniform, thus the heat transfer enhanced heat collection tube is safe and reliable in the operation, can be used in a solar groove type thermal power generation technology, can also be used in a solar Fresnel power generation technology, and is greatly increased in the photo-thermal transformation efficiency of the solar thermal power generation.
Description
Technical field
The utility model belongs to the solar light-heat power-generation technical field, is specifically related to a kind of solar energy thermal-power-generating and uses the enhanced heat exchange thermal-collecting tube.
Background technology
The energy resources reserves of China allow of no optimist, and per capita resources is not abundant.Many places lack the conventional energy resource resource, but solar energy resources is abundant.For improving solar energy thermal-power-generating efficient, the general employing on the one hand improved solar thermal collection system outlet medium temperature, thereby improves the thermoelectric conversion efficiency of whole system.Improve the performance and the thermal transition efficient of each assembly of solar energy thermal-power-generating, parts on the other hand.Be one of solar energy thermal-power-generating critical component, the measure that should primary study improves its efficient.Line-focusing solar energy vacuum heat-collecting pipe relates to multi-disciplinary high-tech product, receives the restriction of domestic technique development level and present situation.
The present thermal-collecting tube no matter outer surface of vacuum glass-metal vacuum thermal-collecting tube or antivacuum plated film collector metal pipe adopts the plated film coating to absorb the solar radiation energy; But their inner surface all adopts smooth surface; After the solar radiation heat mirror thermal-collecting tube heat conduction by the absorption of thermal-collecting tube outer metallic surface plated film coating; Have the fluid media (medium) (conduction oil, fused salt, water, steam) etc. of metallic interior surface and internal flow to carry out heat exchange, because of characteristics such as the solar energy energy-flux density are low, media flow speed is lower in the thermal-collecting tube; If factors such as inhomogeneous, hot transmission of absorption heat and convection properties are bad; Can cause thermal-collecting tube local heating and wall temperature difference increasing up and down, thermal-collecting tube produced damage, the equipment that influences normally moves.
And the thermal-collecting tube structure of other augmentation of heat transfers and form are comparatively complicated, and resistance height, manufacturing difficulty of processing and cost are big, are difficult for large-scale commercial applications and use.
The utility model content
In order to overcome the shortcoming of above-mentioned prior art, the purpose of the utility model is to provide a kind of solar energy thermal-power-generating to use the enhanced heat exchange thermal-collecting tube, utilizes the augmentation of heat transfer effect, the medium that farthest heat is flowed in the metal inner pipe transfer tube.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of solar energy thermal-power-generating is used the enhanced heat exchange thermal-collecting tube, comprises metal inner pipe 1, and the inner surface of said metal inner pipe 1 has screw thread 2 or protruding 3.
Dispose glass outer tube 4 outside the said metal inner pipe 1, the outer surface of metal inner pipe 1 is coated with solar energy absorbing coating 5, vacuumizes between glass outer tube 4 and the metal inner pipe 1, forms vacuum glass-collector metal pipe.
The outer surface of said metal inner pipe 1 is coated with solar energy absorbing coating 5, forms antivacuum plated film collector metal pipe.
Said screw thread 2 in the form of a ring, and can have equally spaced protruding 3 in same annular in metal inner pipe 1.
Because the enhance heat transfer effect of the metal threaded pipe of solar energy heat collection pipe, the utility model can make heat fully pass to medium, has not only improved heat transference efficiency, improves medium temperature, can make the thermal-collecting tube tube wall temperature more even simultaneously, safe and reliable operation.Not only can be used for the hot generation technology of solar groove type, also can be used for the solar energy Fresnel generation technology, improve the photo-thermal transformation efficiency of solar energy thermal-power-generating greatly.
Description of drawings
Fig. 1 is the vacuum glass-collector metal duct ligation composition of the utility model.
Fig. 2 is the antivacuum plated film collector metal duct ligation composition of the utility model.
The specific embodiment
Specify the embodiment of the utility model below in conjunction with accompanying drawing and embodiment.
Embodiment one
As shown in Figure 1; A kind of solar energy thermal-power-generating is used the enhanced heat exchange thermal-collecting tube, comprises metal inner pipe 1, and the inner surface of said metal inner pipe 1 has screw thread 2; The metal inner pipe 1 outer glass outer tube 4 that disposes; The outer surface of metal inner pipe 1 is coated with solar energy absorbing coating 5, vacuumizes between glass outer tube 4 and the metal inner pipe 1, forms vacuum glass-collector metal pipe.Screw thread 2 in the form of a ring, has equally spaced protruding 3 in same annular in metal inner pipe 1.
Embodiment two
As shown in Figure 2, a kind of solar energy thermal-power-generating is used the enhanced heat exchange thermal-collecting tube, comprises metal inner pipe 1; The inner surface of said metal inner pipe 1 has protruding 3; Protruding 3 evenly distribute, and the outer surface of metal inner pipe 1 is coated with solar energy absorbing coating 5, forms antivacuum plated film collector metal pipe.
Because the effect that the screw thread 2 that is provided with or protruding 3 has enhance heat transfer can make heat fully pass to medium, therefore can improve heat transference efficiency, improves medium temperature, can make the thermal-collecting tube tube wall temperature more even simultaneously, safe and reliable operation.
Claims (5)
1. a solar energy thermal-power-generating is used the enhanced heat exchange thermal-collecting tube, comprises metal inner pipe (1), it is characterized in that, the inner surface of said metal inner pipe (1) has screw thread (2) or protruding (3).
2. solar energy thermal-power-generating according to claim 1 is used the enhanced heat exchange thermal-collecting tube; It is characterized in that; The outer glass outer tube (4) that disposes of said metal inner pipe (1); The outer surface of metal inner pipe (1) is coated with solar energy absorbing coating (5), vacuumizes between glass outer tube (4) and the metal inner pipe (1), forms vacuum glass-collector metal pipe.
3. solar energy thermal-power-generating according to claim 1 is used the enhanced heat exchange thermal-collecting tube, it is characterized in that, the outer surface of said metal inner pipe (1) is coated with solar energy absorbing coating (5), forms antivacuum plated film collector metal pipe.
4. use the enhanced heat exchange thermal-collecting tube according to claim 1,2 or 3 described solar energy thermal-power-generatings, it is characterized in that, said screw thread (2) in metal inner pipe (1) in the form of a ring.
5. solar energy thermal-power-generating according to claim 4 is used the enhanced heat exchange thermal-collecting tube, it is characterized in that, said screw thread (2) has equally spaced convexity (3) in same annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120561571 CN202393052U (en) | 2011-12-29 | 2011-12-29 | Heat transfer enhanced heat collection tube for solar thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120561571 CN202393052U (en) | 2011-12-29 | 2011-12-29 | Heat transfer enhanced heat collection tube for solar thermal power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393052U true CN202393052U (en) | 2012-08-22 |
Family
ID=46667974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120561571 Expired - Lifetime CN202393052U (en) | 2011-12-29 | 2011-12-29 | Heat transfer enhanced heat collection tube for solar thermal power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494418A (en) * | 2011-12-29 | 2012-06-13 | 中国华能集团清洁能源技术研究院有限公司 | Solar heat collecting pipe for reinforcing heat exchange |
-
2011
- 2011-12-29 CN CN 201120561571 patent/CN202393052U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494418A (en) * | 2011-12-29 | 2012-06-13 | 中国华能集团清洁能源技术研究院有限公司 | Solar heat collecting pipe for reinforcing heat exchange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |