CN2204034Y - High efficiency optical collection type solar energy heat collector - Google Patents
High efficiency optical collection type solar energy heat collector Download PDFInfo
- Publication number
- CN2204034Y CN2204034Y CN94221759U CN94221759U CN2204034Y CN 2204034 Y CN2204034 Y CN 2204034Y CN 94221759 U CN94221759 U CN 94221759U CN 94221759 U CN94221759 U CN 94221759U CN 2204034 Y CN2204034 Y CN 2204034Y
- Authority
- CN
- China
- Prior art keywords
- heat
- heat collector
- spherical
- reflecting surface
- type solar
- Prior art date
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/80—Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/83—Other shapes
- F24S2023/838—Other shapes involutes
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
Landscapes
- 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)
- Greenhouses (AREA)
Abstract
The utility model relates to an optical collection type solar-energy heat collector whose reflecting surface is a rotary involute surface using a spherical heat absorption body as a base circle. The periphery of the spherical heat absorption body is provided with an eccentric outer sphere which is made up of a transparent thin film. A transparent cover plate is arranged on the top of a shell. The heat collecting efficiency is greatly raised because of the structure, not only the direct-projection solar ray can be utilized, but also the scattered solar ray on the circumference can befully utilized. The solar light at any angle can be absorbed by the heat collector, and the sun tracking device is not needed. The double green-house effects are adopted, the heat preservation effect can be raised, and the heat dissipation can be reduced.
Description
The utility model relates to the solar concentration type heat collector.
Present Salar light-gathering technology mainly adopts lens and parabola, though focusing is good, because of the manufacturing cost height of lens, can only use in some important events; Parabolic concentrator needs solar tracking equipment, so its complex structure, the cost height is difficult to apply.These focus solar collectors can only utilize the direct projection part of sunray, and the scattered light (accounting for 30%) around can not utilizing in the city.At present a kind of focus solar collector that does not need tracks sunlight also occurs, adopt the parabola shaped reflecting surface of spherical reflecting surface or combined type, sunlight is poly-to spherical absorber.The former focusing is relatively poor, can only the part collected light.The latter's reflecting surface is made up of two paraboloids of revolution, though straight line and scattered beam are had focussing force, the width of dehiscing of this compound curved surface is less relatively and the degree of depth is relatively large, and the sunlight receiving angle is reduced, and heat-collecting capacity and collecting efficiency are affected.Penetrate area and will reach certain sunlight width of cloth, just need a plurality of curved surfaces compound, complex structure, and the requirement of the accuracy of manufacture of this curved surface is high, and cost is also higher, applies being very limited.
The purpose of this utility model is to avoid above-mentioned difficulties, and a kind of high-effective concentration type heat collector with new type reflection face is provided, to increase substantially heat-collecting capacity and collecting efficiency.
Solution of the present utility model is: it is the rotation involute surface of basic circle that the reflecting surface of solar thermal collector is made with spherical absorber.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the transverse cross-sectional view with focus solar collector of rotation involute surface.
Referring to Fig. 1, focus solar collector comprises housing 6, heat insulation layer 7, spherical absorber 2 and sees through cover plate 4.The reflective surface that adopts is a rotation involute surface 1, and this involute surface is that basic circle forms with spherical absorber 2.Among the figure, spherical absorber 2 is a basic circle, and rotation involute surface 1 is two reverse involutes of this basic circle.The treated aluminium foil of the general employing of reflecting surface makes it to fit tightly together with the foamed plastics of heat insulation layer 7.
The reflecting surface of this focus solar collector is a rotation involute surface, and its basic circle is the heat absorption ball.Characteristic according to involute, the normal of arbitrfary point must be the tangent line of basic circle on the involute, all as can be known light that shines in the reflecting surface opening, the part on shining directly into endothermic tube, all the other light all reflex to the face of being reflected on spherical absorber 2 sides or the bottom surface after refraction, its focusing range all on the basic circle spherical surface, thereby will shine all light on the heat collector reflecting surface, all reflex on the spherical absorber 2 to light from angle greater than 0 ° less than 180 °.The ratio of the A/F of this rotation involute surface and height is always greater than 2, thereby the reflecting surface opening is relatively large, and the degree of depth is less relatively, thereby large-area light ray can be gathered more among a small circle.
See Fig. 2, this focus solar collector sees through the cover plate 4 except that being provided with at housing 6 tops, also is provided with an eccentric ectosphere 3 made from transparent thin-film material in spherical absorber 2 peripheries, to produce two greenhouse effects, improves heat insulation effect, reduces radiation loss.Transparent material can be selected glass or plastics class for use, as mylar etc.
The utility model is compared with existing all kinds of focus solar collectors, has following advantage:
1, collecting efficiency is increased substantially, not only can utilize the direct projection part of sunray, and can take full advantage of the scattered light around the city. Reflecting surface is dehisced greatly, and the degree of depth is little, and the daylight receiving angle is big, and light and horizontal angle are from extremely being received by heat collector less than 180 ° greater than 0 °.
2, spherical absorber area is less relatively, have two greenhouse effects simultaneously, thereby heat loss is little, is suitable for high-temperature heat-gathering, and under identical weather and other condition, the water temperature of this heat collector will exceed more than 20 ℃ than heat absorption type heat collector.Even also have certain Heat-collecting effect at the cloudy day, can be used for summer boiling water, also have suitable obvious effects winter.
3, do not need solar tracking equipment, simple in structure, save material, cost is low.Reflecting surface is easily manufactured, and is not high to required precision, even there are some errors little to its influential effect, its error is easy to control and compensation.
4, high insulating effect.Heat insulation layer adopts foamed plastics to paste the technology of aluminium foil, and heat radiation is had good reflex.Two greenhouse effects also make heat-insulating property increase substantially.
Claims (3)
1, high-effective concentration type solar thermal collector comprises reflecting surface, spherical absorber (2), sees through cover plate (4), housing (6) and heat insulation layer (7), it is characterized in that said reflecting surface is is the rotation involute surface (1) of basic circle with spherical absorber (2).
2, heat collector as claimed in claim 1 is characterized in that the periphery of said spherical absorber (2) is provided with the eccentric ectosphere (3) that transparent thin-film material is made, and to produce two greenhouse effects, improves heat insulation effect, reduces radiation loss.
3, heat collector as claimed in claim 2, the transparent material that it is characterized in that said eccentric ectosphere (3) is glass or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94221759U CN2204034Y (en) | 1994-09-13 | 1994-09-13 | High efficiency optical collection type solar energy heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94221759U CN2204034Y (en) | 1994-09-13 | 1994-09-13 | High efficiency optical collection type solar energy heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204034Y true CN2204034Y (en) | 1995-07-26 |
Family
ID=33835972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94221759U Expired - Fee Related CN2204034Y (en) | 1994-09-13 | 1994-09-13 | High efficiency optical collection type solar energy heat collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204034Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748399A (en) * | 2013-12-26 | 2015-07-01 | 赵文峰 | Heat collection system complete device with inner and outer double shafts mechanically adjusted to track inner and outer double spheres |
-
1994
- 1994-09-13 CN CN94221759U patent/CN2204034Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748399A (en) * | 2013-12-26 | 2015-07-01 | 赵文峰 | Heat collection system complete device with inner and outer double shafts mechanically adjusted to track inner and outer double spheres |
| CN104748399B (en) * | 2013-12-26 | 2016-07-20 | 赵文峰 | The inside and outside double; two sphere collecting system complexes of mechanical adjustment double-axis tracking |
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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 |