CN2570698Y - Antivacuum three-layer tube solar heat collector with built-in reflecting plate - Google Patents
Antivacuum three-layer tube solar heat collector with built-in reflecting plate Download PDFInfo
- Publication number
- CN2570698Y CN2570698Y CN02232555U CN02232555U CN2570698Y CN 2570698 Y CN2570698 Y CN 2570698Y CN 02232555 U CN02232555 U CN 02232555U CN 02232555 U CN02232555 U CN 02232555U CN 2570698 Y CN2570698 Y CN 2570698Y
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- CN
- China
- Prior art keywords
- tube
- inner tube
- pipe
- reflecting plate
- outer 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 - Fee Related
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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 non-vacuum three-layer tube solar heat collecting device with a built-in reflecting plate, which is formed by the concentric arrangement of an outer tube, a middle tube and an inner tube, wherein a reflecting plate which accords with the shape of a paraboloid is arranged between the outer tube and the middle tube. An end cover which forms a step shape, the inner walls at both ends of the outer tube, the outer wall of the middle tube and the outer wall of the inner tube contact each other and are sealed to form a whole by adhesive. Therefore, dust is prevented from entering the heat collecting device to cause dust deposition which influence the light transmission properties and the heat collecting function of the heat collecting device. The inner tube is made of metallic materials. When water or other mediums flow through the inner tube, light rays of the sunlight which are reflected by the reflecting plate are focused on the inner tube in a line shape to heat the water or other mediums in the inner tube. The utility model has high thermal efficiency.
Description
Technical field
The utility model relates to a kind of non-vacuum three-layer tube solar heat-collecting device of built-in reflector, belongs to the technical field of solar energy heat collector.
Background technology
The development of solar energy industry, a lot of countries that promoted the China and the world are to being the big quantity research of the solar energy heating device of purpose to improve the photo-thermal transformation efficiency.The flat plate collector and the heat pipe-type water heater that with the absorber are metal abroad are main, and the flat plate collector cost is low, but thermal loss is big, and freezing tolerance is poor; The price of heat pipe-type water heater is higher relatively, makes and the characterization processes complexity, and because of factor crackies such as interior pipe cantilever, residual temperature stress and vacuum; External reflector CPC is exposed in the atmosphere, occurs the phenomenon that laying dust, corrosion etc. influence reflecting effect easily, and collecting efficiency is significantly reduced.CPC is a kind of solar panel that meets paraboloidal mirror.
Summary of the invention
The purpose of this utility model is the non-vacuum three-layer tube solar heat-collecting device that a kind of built-in reflector will be provided, and it is made up of three layers of sleeve pipe, reflector, cover plate and sealing-in adhesive.Thermal efficiency height, heat waste that it had both had all-glass vacuum tube are low, but the advantage of partial installation is arranged again, also have the advantage of the low and long service life of the cost of flat plate collector, thereby have solved the problem that exists on the prior art.
The structure of the non-vacuum three-layer tube solar heat-collecting device of built-in reflector is: the outer tube of heat collector (1), middle pipe (2) and interior pipe (3) are concentric configurations, end cap (5) be step and with the outer wall of the inwall of outer tube (1) and middle pipe (2) and in the outer wall of pipe (3) stick with glue agent (6) sealing and be integral.The reflector (4) that meets parabolic shape is housed between outer tube (1) and the middle pipe (2).Reflector (4) is made with aluminium, and its surperficial plated aluminum is for aluminium film, inteferometer coating, diffraction film, black cadmium coater or pitch-dark coating.Fill with air between outer tube (1), middle pipe (2) and the interior pipe (3).
The advantage of the non-vacuum three-layer tube solar heat-collecting device of built-in reflector is the collecting efficiency height, compares with all-glass vacuum tube with flat plate collector, and built-in CPC can keep for a long time to high reflectivity, makes the thermal efficiency stable.Its heat waste is low, though that this device interlayer is is antivacuum, because interior pipe and middle ligament are less, has effectively suppressed convection current, and its outer wall of inner tube scribbles coating for selective absorption and the self-radiating area is less, so heat waste reduces greatly.Because lunch and temperature stress in the production process, no cantilever design, and be antivacuum, so there is not Problem of Failure in cracky not yet, have the vacuum types heat collector incomparable life-span long.Its making, maintenance and installation are simple and easy, because this thermal-collecting tube does not need application of vacuum, have reduced the investment and the maintenance of vacuum production and checkout equipment, have simplified technology, have reduced cost.
Description of drawings
Fig. 1. the non-vacuum three-layer tube solar heat-collecting device schematic diagram of built-in reflector
Fig. 2. the A-A cutaway view of Fig. 1
By Fig. 1,2, outer tube (1), middle pipe (2) and inner tube (3) are concentric configurations, but also can be nonconcentric(al) Install, end cap (5) is step. Pack between outer tube (1) and inner tube (3) and the middle pipe (2) end cap (5) and sealing-in glue Stick (6) is affixed, makes inner tube (3) convexedly stretch in water, and inner tube (3), outer tube (1) and middle pipe (2) are all good with light transmission Good material is made, and such as metal tube or non-metallic pipe, has current logical in the inner tube (3), also can fill with other working medium, The outer surface of pipe sprays optionally absorber coatings, and its caliber is littler, in order to reduce area of dissipation. Inner tube (3) And the gap between the middle pipe (2) is also littler, in order to suppress heat convection. Dress between outer tube (1) and middle pipe (2) Enter reflector (4), this reflector is the reflective focusing board (referred to as CPC) that meets paraboloidal mirror, and its effect is After light reflection, make it be wire and focus on above the inner tube (3) inner tube (3), middle pipe (2) and outer tube (1) Between air is all arranged. End cap (5) is with connecing the airtight sealing of adhesive (6), and glue dregs of rice agent (6) is even the affixed one-tenth one of three pipes Body, again sealing in the pipe with dust protection, steam enters in the space in order to avoid knot mist laying dust occurs, affects that it is saturating Luminosity also affects its thermal loss and increases.
Embodiment
Outer tube (1), middle pipe (2) and (3) the concentric configuration of interior pipe, fill with air between each pipe, two ends pack into end cap (5) and adhesive (6), make the inwall of the step of end cap and adhesive and outer tube (1) and middle pipe (2) outer wall and in the outer wall of pipe (3) fit and be integral by adhesive (6) sealing, can prevent the dust intrusion, in order to avoid cause laying dust to influence its light transmittance.The shape of reflector meets the principle of parabolic minute surface, the light reflect focalization is become line and gathers above interior pipe, to improve the effect of its light and heat collection.Reflector (4) can be coated aluminium for aluminium film, inteferometer coating, diffraction film, black cadmium coater and pitch-dark coating, to strengthen its reflective heat build-up performance.
Claims (3)
1. the non-vacuum three-layer tube solar heat-collecting device of a built-in reflector, it is characterized in that the outer tube (1) of heat collector, middle pipe (2) and interior pipe (3) are concentric configurations, end cap (5) be step and with the outer wall of the inwall of outer tube (1) and middle pipe (2) and in the outer wall of pipe (3) stick with glue agent (6) sealing and be integral, the reflector plate (4) that meets parabolic shape is housed between outer tube (1) and the middle pipe (2).
2. heat collector according to claim 1 is characterized in that reflector (4) makes with aluminium, and its surperficial plated aluminum is for aluminium film, inteferometer coating, diffraction film, black cadmium coater or pitch-dark coating.
3. heat collector according to claim 1 is characterized in that filling with air between outer tube (1), middle pipe (2) and the interior pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02232555U CN2570698Y (en) | 2002-04-16 | 2002-04-16 | Antivacuum three-layer tube solar heat collector with built-in reflecting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02232555U CN2570698Y (en) | 2002-04-16 | 2002-04-16 | Antivacuum three-layer tube solar heat collector with built-in reflecting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570698Y true CN2570698Y (en) | 2003-09-03 |
Family
ID=33707916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02232555U Expired - Fee Related CN2570698Y (en) | 2002-04-16 | 2002-04-16 | Antivacuum three-layer tube solar heat collector with built-in reflecting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570698Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196241A (en) * | 2012-01-06 | 2013-07-10 | 中国科学院工程热物理研究所 | Parabolic slot type solar heat collection device |
-
2002
- 2002-04-16 CN CN02232555U patent/CN2570698Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196241A (en) * | 2012-01-06 | 2013-07-10 | 中国科学院工程热物理研究所 | Parabolic slot type solar heat collection device |
| CN103196241B (en) * | 2012-01-06 | 2016-01-20 | 中国科学院工程热物理研究所 | A kind of parabolic trough type solar energy heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |