CN101893325A - Light-concentrating type high-efficient flat-plate compound heat collector - Google Patents
Light-concentrating type high-efficient flat-plate compound heat collector Download PDFInfo
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- CN101893325A CN101893325A CN2010102229286A CN201010222928A CN101893325A CN 101893325 A CN101893325 A CN 101893325A CN 2010102229286 A CN2010102229286 A CN 2010102229286A CN 201010222928 A CN201010222928 A CN 201010222928A CN 101893325 A CN101893325 A CN 101893325A
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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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- 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
- Y02E10/47—Mountings or tracking
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Abstract
The invention relates to a light-concentrating type high-efficient flat-plate compound heat collector which is characterized by comprising a support, a flat-plate heat collector and a reflecting and light-concentrating device, wherein the flat-plate heat collector is mounted on the support, transparent cover plates are arranged on two surfaces of the flat-plate heat collector, a heat-absorbing plate core is arranged in the flat-plate heat collector, selective heat-absorbing coatings are arranged on two surfaces of the heat-absorbing plate core, a thermal insulation layer is arranged outside the heat-absorbing plate core, and the reflecting and light-concentrating device is positioned on the surface facing westward of the flat-plate heat collector. The light-concentrating type high-efficient flat-plate compound heat collector simultaneously inherits the characteristics of the flat-plate heat collector and the light-concentrating heat collector, has the advantages of high thermal efficiency, a wide range of applications, capability of achieving 50 degrees-400 degrees, high performance-price ratio, safe and reliable performances, and can better utilize solar energy, save energy and protect environment.
Description
Technical field
The present invention relates to a kind of light-concentrating type high-efficient flat-plate compound heat collector, belong to field of solar energy utilization.
Background technology
The solar thermal collector of prior art is divided into light-focusing type and non-light-focusing type, at non-light-focusing type flat plate collector middle plateform heat collector because effectively the photo-thermal heat exchange area is big, and high thermal conductivity core metal sheet, its evenly heat efficient can reach hd 〉=70%, hd 〉=50% that is higher than glass-vacuum tube, and has a pressure-bearing height, unnatural booster, advantages such as Evacuable and large tracts of land thermal-arrest, but flat plate collector belongs to the low temperature field, can only reach 50～80 ℃ summer, in 40～50 ℃ of winters, the scope of application is limited to, and light-focusing type is suitable for middle high temperature utilization, can be divided into and follow the tracks of row and Nontracking, following-up type is divided into slot type, dish formula and tower, thermal efficiency hd 〉=75% is mainly used in the generating of Industrial Boiler transformation and solar energy CSP heat, require height but make, cost of manufacture is big.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of thermal efficiency height, applied range, can reach 50 °～400 °, the cost performance height, performance is safe and reliable, has the light-concentrating type high-efficient flat-plate compound heat collector that flat heat collecting has light-focusing function again.
The technical solution adopted for the present invention to solve the technical problems is: a kind of light-concentrating type high-efficient flat-plate compound heat collector, it is characterized in that: comprise support, flat plate collector and reflecting and condensing device, flat plate collector is rack-mount, the flat plate collector two sides is transparent cover plate, flat plate collector inside is provided with heat-absorbing plate core, the two sides of heat-absorbing plate core all has optionally heat absorbing coating, is outside equipped with heat-insulation layer at heat-absorbing plate core, and reflecting and condensing device is positioned at the flat plate collector opaco.
Heat absorption fin and coiled pipe that described heat-absorbing plate core is integrated, coiled pipe adopts copper pipe, the heat absorption fin adopts the aluminium fin, because of absorb heat fin and coiled pipe are subjected to hyperthermia radiation thermal expansion can take place, and therefore absorbing heat is provided with certain expansion clearance between fin and coiled pipe and the framework.
Described heat-absorbing plate core also can be for having the pottery heat absorption cavity of heat absorbing coating, and ceramic material has temperature tolerance good, the advantage that the expanded by heating coefficient is little.
Described reflecting and condensing device comprises mirror condenser and tracking means, and mirror condenser adopts dish formula or slot type, and tracking means adopts single shaft or double-axis tracking.
Described flat plate collector two sides is transparent cover plate, the material of cover plate can be glass or plastics (as PC, PVC etc.), opaco is owing to be subjected to the radiation of condenser focal line focal spot, can adopt resistant to elevated temperatures high-boron-silicon glass, in order to improve the heat-insulating property of flat plate collector, cover plate can adopt the hollow type structure, and transparent cover plate can make it vacuum at the situation lower pumping that air-proof condition satisfies.
Described selective heat absorbing coating is coated in the two sides of heat-absorbing plate core, can use chemical treatment (anodic oxidation), sputter, plating or coating, coating adopts purple, blue, black isochrome all can, opaco uses high temperature resistant radiation coating because of being subjected to the radiation of condenser focal line focal spot.
Because the focal line or the focal spot projected area of the focusing of tube and tank type or dish formula are not less, in order to reduce heat waste and to save the heat absorbing coating material, can be subjected to that the plating selectivity absorbs hot coating on the active position of focal line focal spot projection at the opaco of heat collector, its corresponding cover plate is a transparent cover plate, and the outer is that the heatproof heat-insulating material is to improve heat-insulating property.
Because of the two sides of flat plate collector is light transmissive material, heat-absorbing plate core also is that the two sides has heat absorbing coating, that is to say that all there is the heat absorption function on the flat plate collector two sides, wherein sunny slope has the heat collection function of direct absorption sunshine heat, this is identical with the classic flat-plate heat collector, another opaco then can absorb the sunshine heat of the mirror condenser radiation that is arranged on the flat plate collector opaco, be that the flat plate collector two sides absorbs the heat by the both direction sunshine of sun direct projection and the reflection of optically focused reflection unit simultaneously, tracking means can be according to the angle of the angle adjustment mirror condenser of different period sunshines, better utilization solar energy.
The beneficial effect that the present invention had is: inherited the characteristics of flat plate collector and focus solar collector simultaneously, thermal efficiency height, applied range; can reach 50 °～400 °, the cost performance height, performance is safe and reliable; better utilization solar energy, energy savings, protection environment.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, support; 2, transparent cover plate; 3, heat absorption fin; 4, coiled pipe; 5, framework; 6, heat-insulation layer; 7, mirror condenser; 8, condenser support;
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
As shown in Figure 1: a kind of light-concentrating type high-efficient flat-plate compound heat collector, comprise support 1, flat plate collector and reflecting and condensing device, flat plate collector is installed on the support 1, the flat plate collector two sides is transparent cover plate 2, flat plate collector inside is provided with heat-absorbing plate core, heat absorption fin 3 that heat-absorbing plate core is integrated and coiled pipe 4, coiled pipe 4 adopts copper pipe, heat absorption fin 3 adopts the aluminium fin, thermal expansion can take place because of absorb heat fin 3 and coiled pipe 4 are subjected to hyperthermia radiation, therefore absorb heat and be provided with certain expansion clearance between fin 3 and coiled pipe 4 and the framework 5, be outside equipped with heat-insulation layer 6 at heat absorption fin 3 and coiled pipe 4, reflecting and condensing device is positioned at the flat plate collector opaco.
The mirror condenser 7 of reflecting and condensing device is a dish formula structure, adopts uniaxiality tracking, and mirror condenser 7 is installed on the condenser support 9.
The flat plate collector two sides is transparent cover plate 2, the material of transparent cover plate 2 is a glass, opaco is owing to be subjected to the radiation of mirror condenser 7 focal line focal spots, adopt resistant to elevated temperatures high-boron-silicon glass, transparent cover plate 2 is a hollow type glass, can improve the heat-insulating property of flat plate collector, transparent cover plate 2 can make it vacuum at the situation lower pumping that air-proof condition satisfies.
Selective heat absorbing coating is positioned at the two sides of heat absorption fin 3, can use chemical treatment (anodic oxidation), sputter, plating or coating, coating adopts purple, blue, black isochrome all can, opaco uses high temperature resistant radiation coating because of being subjected to the radiation of condenser focal line focal spot.
Because focal line or focal spot projected area that mirror condenser 7 focuses on are less, in order to reduce heat waste and to save the heat absorbing coating material, can be subjected to that the plating selectivity absorbs hot coating on the active position of focal line focal spot projection at the opaco of flat plate collector, its corresponding cover plate is a transparent cover plate, and the outer is that the heatproof heat-insulating material is to improve heat-insulating property.
Because of the two sides of flat plate collector is light transmissive material, heat-absorbing plate core also is that the two sides has heat absorbing coating, that is to say that all there is the heat absorption function on the flat plate collector two sides, wherein sunny slope has the heat collection function of direct absorption sunshine heat, this is identical with the classic flat-plate heat collector, another opaco then can absorb the sunshine heat of mirror condenser 7 radiation that are arranged on the flat plate collector opaco, be that the flat plate collector two sides absorbs the heat by the both direction sunshine of sun direct projection and optically focused reflection unit reflection simultaneously, uniaxiality tracking can be according to the angle better utilization solar energy of the angle adjustment mirror condenser 7 of different period sunshines.
Uniaxiality tracking of wherein mentioning or double-axis tracking are present current techique, can directly use for reference use.
Claims (7)
1. light-concentrating type high-efficient flat-plate compound heat collector, it is characterized in that: comprise support, flat plate collector and reflecting and condensing device, flat plate collector is rack-mount, the flat plate collector two sides is transparent cover plate, flat plate collector inside is provided with heat-absorbing plate core, the two sides of heat-absorbing plate core all has optionally heat absorbing coating, is outside equipped with heat-insulation layer at heat-absorbing plate core, and reflecting and condensing device is positioned at the flat plate collector opaco.
2. light-concentrating type high-efficient flat-plate compound heat collector according to claim 1 is characterized in that: the integral structure that described heat-absorbing plate core is made up of coiled pipe and heat absorption fin, the two heat absorption fins that have heat absorbing coating become sandwich structure with coiled pipe.
3. light-concentrating type high-efficient flat-plate compound heat collector according to claim 1 is characterized in that: described heat-absorbing plate core is the pottery heat absorption cavity that has heat absorbing coating.
4. light-concentrating type high-efficient flat-plate compound heat collector according to claim 1 is characterized in that: described reflecting and condensing device comprises mirror condenser and tracking means, and mirror condenser adopts dish formula or slot type, and tracking means adopts single shaft or double-axis tracking device.
5. light-concentrating type high-efficient flat-plate compound heat collector according to claim 1 is characterized in that: described transparent cover plate adopts the hollow type structure, adopts glass or plastic material, and opaco adopts high-boron-silicon glass.
6. light-concentrating type high-efficient flat-plate compound heat collector according to claim 1 is characterized in that: described selective heat absorbing coating adopts anodized or adopts black chromium, aluminium nitrogen aluminium, titanium oxynitrides material.
7. heat-absorbing plate core according to claim 2 is characterized in that: described coiled pipe adopts copper pipe, and the heat absorption fin adopts the aluminium fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102229286A CN101893325A (en) | 2010-07-10 | 2010-07-10 | Light-concentrating type high-efficient flat-plate compound heat collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102229286A CN101893325A (en) | 2010-07-10 | 2010-07-10 | Light-concentrating type high-efficient flat-plate compound heat collector |
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| CN101893325A true CN101893325A (en) | 2010-11-24 |
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| CN2010102229286A Pending CN101893325A (en) | 2010-07-10 | 2010-07-10 | Light-concentrating type high-efficient flat-plate compound heat collector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759203A (en) * | 2012-07-26 | 2012-10-31 | 陕西科技大学 | Light-concentrating type flat solar water boiler and manufacturing process of light concentrating mirror thereof |
| CN105042885A (en) * | 2015-08-27 | 2015-11-11 | 广东五星太阳能股份有限公司 | Concentrating type flat-plate solar collector |
| CN114719449A (en) * | 2022-04-21 | 2022-07-08 | 安徽科技学院 | Light-gathering flat-plate solar collector |
| CN115598816A (en) * | 2022-12-07 | 2023-01-13 | 昆明理工大学（Cn） | Non-imaging condenser with separated surface body and construction method of mathematical model thereof |
| CN116465101A (en) * | 2022-01-11 | 2023-07-21 | 山东大学 | Solar heat collector capable of collecting heat up and down simultaneously |
-
2010
- 2010-07-10 CN CN2010102229286A patent/CN101893325A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759203A (en) * | 2012-07-26 | 2012-10-31 | 陕西科技大学 | Light-concentrating type flat solar water boiler and manufacturing process of light concentrating mirror thereof |
| CN105042885A (en) * | 2015-08-27 | 2015-11-11 | 广东五星太阳能股份有限公司 | Concentrating type flat-plate solar collector |
| CN116465101A (en) * | 2022-01-11 | 2023-07-21 | 山东大学 | Solar heat collector capable of collecting heat up and down simultaneously |
| CN116465101B (en) * | 2022-01-11 | 2024-03-12 | 山东大学 | Solar heat collector capable of collecting heat up and down simultaneously |
| CN114719449A (en) * | 2022-04-21 | 2022-07-08 | 安徽科技学院 | Light-gathering flat-plate solar collector |
| CN115598816A (en) * | 2022-12-07 | 2023-01-13 | 昆明理工大学（Cn） | Non-imaging condenser with separated surface body and construction method of mathematical model thereof |
| CN115598816B (en) * | 2022-12-07 | 2023-04-21 | 昆明理工大学 | Non-imaging condenser with separated surface and construction method of mathematical model of non-imaging condenser |
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Application publication date: 20101124 |