CN103673326A - Spiral cavity type solar thermal collector - Google Patents
Spiral cavity type solar thermal collector Download PDFInfo
- Publication number
- CN103673326A CN103673326A CN201210319572.7A CN201210319572A CN103673326A CN 103673326 A CN103673326 A CN 103673326A CN 201210319572 A CN201210319572 A CN 201210319572A CN 103673326 A CN103673326 A CN 103673326A
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- heat
- coil pipe
- spiral
- collector
- absorption coil
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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
Abstract
The invention relates to the technical field of solar optothermal power generation, and discloses a spiral cavity type solar thermal collector which comprises a heat conducting medium inlet, a heat conducting medium outlet and a heat absorbing coil pipe. The heat absorbing coil pipe is spiral, heat absorbing fins used as heat absorbing cavities are arranged on spiral gaps of the heat absorbing coil pipe, and the surfaces of the heat absorbing fins are paved with selective absorption coatings. The bent groove type heat collecting cavity type structure enables the temperature of the heat exchange surface to be more evenly distributed, heat collecting and exchanging efficiency of the thermal collector is improved, and the heat preservation and manufacturing processes are simplified.
Description
Technical field
The present invention relates to solar light-heat power-generation systems technology field, particularly a kind of spiral cavity-type solar collector.
Background technology
The energy is social development, the basis of human progress.Along with industrial expansion goes from strength to strength and human wants expanding day, Energy situation day is becoming tight, and green energy resource is considered to fundamentally solve the approach of mankind's energy demand.
Wherein solar energy is because of its " reserves " unlimitedness, distribution generality, the feature of clean and economy and be considered to one of the most potential new forms of energy.The feature of solar light-heat power-generation is good with electrical network suitability, and photoelectric conversion rate is high, and environmental protection is adjustable etc., thereby becomes the important development direction that solar energy utilizes.
The key of solar light-heat power-generation is by gathering of solar energy, produce generating required temperature and energy, thereby the heat collector of solar light-heat power-generation system partly becomes the key of whole system, it directly affects the economy of light thermoelectric conversion efficiency and cost of electricity-generating.
Known according to theory calculating, cavity structure has maximum collection of energy rate; The Energy distribution that the different types of focusing obtains is inhomogeneous at cavate heat collector inner surface, and this heat that directly affects heat collector distributes and local heat exchange efficiency, and then to exerting an influence the service life of heat collector.Therefore the Energy distribution that makes heat exchange interface place when as far as possible keeping cavate design feature is evenly the final purpose of heat collector design as far as possible.
Therefore, this area is in the urgent need to researching and developing a kind of novel heat collector, and evenly the heat of heat collector distributes and improves Local Heat Transfer efficiency.
Summary of the invention
The object of the present invention is to provide a kind of novel spiral cavity-type solar collector.Can improve thermal-arrest heat transfer effect, and can simplify insulation and manufacturing process, increase the service life.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of spiral cavity-type solar collector, comprise heat-conducting medium entrance, heat-conducting medium outlet and heat absorption coil pipe, wherein, heat absorption coil pipe in the shape of a spiral, the heat absorbing fins that is provided as heat-absorbing chamber above the gap between screw of heat absorption coil pipe, this heat absorbing fins surface is laid with coating for selective absorption.
Optionally, heat absorption coil pipe is double-deck.
Optionally, the hand of spiral of double-deck heat absorption coil pipe is contrary, is connected in series mutually.
Optionally, the hand of spiral of double-deck heat absorption coil pipe is identical, is connected in parallel mutually.
Optionally, the female pipe of heat-conducting medium entrance and influent stream is connected, heat-conducting medium outlet with go out stream mother and manage and be connected.
Optionally, spiral cavity-type solar collector is packaged in vaccum case.
Optionally, heat absorbing fins be shaped as U-shaped.
Optionally, heat absorbing fins can be crooked.
Optionally, heat absorbing fins is chimeric fixing by interference with heat absorption coil pipe.
Optionally, heat absorbing fins and heat absorption coil pipe are by being welded and fixed.
Compared with prior art, the main distinction and effect thereof are embodiment of the present invention: crooked slot type heat collector cavity formula structure can keep the Temperature Distribution of heat exchange surface more even, thereby improve the thermal-arrest heat exchange efficiency of heat collector.Cavity structure has the feature of similar light trapping, and the catch rate of raising sunlight that can maximal efficiency reduces loss, improves to obtain light rate; Fin applies coating for selective absorption, and photo-thermal conversion ratio is high; Duplex coil is made simple, and by the setting of the duplex coil formation cavity structure of arranging; Helical design hydraulics resistance is little, and power consumption is little, energy-conservation of consumption reduction.The present invention, by cavity structure, duplex coil and helical structure are combined each other, has improved the thermal-arrest heat exchange efficiency of heat collector greatly, has also simplified insulation and manufacturing process.
Accompanying drawing explanation
Fig. 1 is the structural representation of spiral cavity-type solar collector of the present invention;
Fig. 2 is the structural representation of the heat absorbing fins of spiral cavity-type solar collector of the present invention;
Fig. 3 is the structural representation of the heat absorption coil pipe of spiral cavity-type solar collector of the present invention;
Fig. 4 is the cross-sectional view of spiral cavity-type solar collector of the present invention;
Fig. 5 is the structural representation of another embodiment of spiral cavity-type solar collector of the present invention.
The specific embodiment
In the following description, in order to make reader understand the application better, many ins and outs have been proposed.But, persons of ordinary skill in the art may appreciate that even without these ins and outs and the many variations based on following embodiment and modification, also can realize each claim of the application technical scheme required for protection.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.In figure, same or analogous member uses the same reference numerals to represent.
Referring to Fig. 1, it is the structural representation of this spiral cavity-type solar collector.This heat collector comprises: heat-conducting medium entrance 1, heat-conducting medium outlet 2 and heat absorption coil pipe 3, heat absorption coil pipe 3 is helical form, the heat absorbing fins 4 that is provided as heat-absorbing chamber above the gap between screw of heat absorption coil pipe 4, these heat absorbing fins 4 surfaces are laid with coating for selective absorption.
Conduction oil or other heat-conducting mediums enter heat absorption coil pipe 3 by heat-conducting medium entrance 1, by being positioned at the heat absorbing fins 4 of heat absorption coil pipe 3 tops, solar energy is converted to heat energy heating conduction oil, conduction oil is exported from heat-conducting medium outlet 2 reach operating temperature after 3 heating of bilayer heat absorption coil pipe after, enters heat storage can.Spiral cavity structure combines cavity structure and spiral-shaped advantage, guarantee to greatest extent in heating rate, make photo-thermal concentrate band spiral distribution, can keep the Temperature Distribution of heat exchange surface more even, thereby improve the thermal-arrest heat exchange efficiency of heat collector, also simplified insulation and manufacturing process, increased the service life.
Heat absorption coil pipe 3 is double-deck.Double-decker requires low to the minimum bending radius of coil pipe material, make processing without specific (special) requirements; Double-decker can make up mutually the space between inside and outside wire turn to greatest extent, and assembly performance is good, the most important thing is that the loss of helical structure hydraulics is little, and power consumption is few.In addition,, in some other embodiment of the present invention, also can adopt the helical form heat absorption coil pipe 3 of individual layer.
The hand of spiral of double-deck heat absorption coil pipe 3 is contrary, is connected in series mutually.The reverse hand of spiral has increased the heat time of heat absorption coil pipe 3 interior liquid, thereby can reach higher heat exchange efficiency when not taking more volumes.
Being shaped as of heat absorbing fins 4 is U-shaped.U-shaped heat absorbing fins 4 matches with heat absorption coil pipe 3, can more contact with heat absorption coil pipe 3, reach better heat transfer effect, the heat-absorbing chamber of the formation of heat absorbing fins 4 makes light enter rear formation light trapping, thereby the selectively absorbing layers that makes to be coated on heat absorbing fins 4 absorbs more sunshine, reaches better heat transfer effect.
Fig. 5 shows another embodiment of spiral cavity-type solar collector of the present invention, the difference of this embodiment and above-mentioned embodiment is, the hand of spiral of double-deck heat absorption coil pipe 3 is identical, be connected in series mutually, the female pipe 5 of heat-conducting medium entrance 1 and influent stream is connected, heat-conducting medium outlet 2 with go out stream mother and manage 6 and be connected.Whole cavate heat collector, by transparent housing 7 Vacuum Package, can arrange transparency aerogel 8 and be incubated below heat absorbing fins 4.Heat absorption coil pipe 3 flow resistances that are connected in parallel are less, and flow is larger, solved the problem that causes system crash because stopping up, and are applicable to the occasion of large traffic demand.
Although pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and described, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. a spiral cavity-type solar collector, comprise heat-conducting medium entrance, heat-conducting medium outlet and heat absorption coil pipe, it is characterized in that, described heat absorption coil pipe in the shape of a spiral, above the gap between screw of described heat absorption coil pipe, be provided as the heat absorbing fins of heat-absorbing chamber, this heat absorbing fins surface is laid with coating for selective absorption.
2. heat collector according to claim 1, is characterized in that, described heat absorption coil pipe is double-deck.
3. heat collector according to claim 2, is characterized in that, the hand of spiral of described double-deck heat absorption coil pipe is contrary, is connected in series mutually.
4. heat collector according to claim 1, is characterized in that, the hand of spiral of described double-deck heat absorption coil pipe is identical, is connected in parallel mutually.
5. heat collector according to claim 4, is characterized in that, the female pipe of described heat-conducting medium entrance and influent stream is connected, heat-conducting medium outlet with go out stream mother and manage and be connected.
6. according to the heat collector described in claim 1 to 5 any one, it is characterized in that, described spiral cavity-type solar collector is packaged in vaccum case.
7. according to the heat collector described in claim 1 to 5 any one, it is characterized in that, described heat absorbing fins be shaped as U-shaped or V-type.
8. according to the heat collector described in claim 1 to 5 any one, it is characterized in that, described heat absorbing fins can be crooked.
9. according to the heat collector described in claim 1 to 5 any one, it is characterized in that, described heat absorbing fins and described heat absorption coil pipe are chimeric fixing by interference.
10. according to the heat collector described in claim 1 to 5 any one, it is characterized in that, described heat absorbing fins and described heat absorption coil pipe are by being welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210319572.7A CN103673326A (en) | 2012-08-31 | 2012-08-31 | Spiral cavity type solar thermal collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210319572.7A CN103673326A (en) | 2012-08-31 | 2012-08-31 | Spiral cavity type solar thermal collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103673326A true CN103673326A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210319572.7A Pending CN103673326A (en) | 2012-08-31 | 2012-08-31 | Spiral cavity type solar thermal collector |
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| CN (1) | CN103673326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674595A (en) * | 2016-04-08 | 2016-06-15 | 北京耀华玻璃装饰工程有限公司 | Solar collector and solar device |
| RU2706527C1 (en) * | 2019-04-15 | 2019-11-19 | Алексей Леонидович Торопов | Solar water heater |
-
2012
- 2012-08-31 CN CN201210319572.7A patent/CN103673326A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674595A (en) * | 2016-04-08 | 2016-06-15 | 北京耀华玻璃装饰工程有限公司 | Solar collector and solar device |
| CN105674595B (en) * | 2016-04-08 | 2017-11-21 | 北京耀华玻璃装饰工程有限公司 | Solar energy equipment |
| RU2706527C1 (en) * | 2019-04-15 | 2019-11-19 | Алексей Леонидович Торопов | Solar water heater |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |