CN102927695A - Solar air heat collector - Google Patents
Solar air heat collector Download PDFInfo
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- CN102927695A CN102927695A CN2012105023937A CN201210502393A CN102927695A CN 102927695 A CN102927695 A CN 102927695A CN 2012105023937 A CN2012105023937 A CN 2012105023937A CN 201210502393 A CN201210502393 A CN 201210502393A CN 102927695 A CN102927695 A CN 102927695A
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- air
- heat
- air chamber
- plate
- absorber plate
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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 provides a solar air heat collector which comprises a heat absorbing plate, a heat preservation shell and a transparent cover plate, wherein an air chamber is formed by the transparent cover plate and the heat preservation shell; the heat absorbing plate is arranged in the air chamber and divides the air chamber into an upper air chamber and a lower air chamber; an air inlet and an air outlet are formed in the heat preservation shell; the air inlet is communicated with the upper air chamber and the lower air chamber; the air outlet is communicated with the upper air chamber and the lower air chamber; the heat absorbing plate is a sine-wave-shaped heat absorbing sheet; and swelled bubbles and concave pits are distributed on the heat absorbing plate. By virtue of the sine-wave-shaped heat absorbing plate, not only is the heat absorption area enlarged, but also reflection and absorption of multiple times can be generated; and boundary layers in air flow are damaged by the swelled bubbles and the concave pits added to the heat absorbing plate, so that a convective heat transfer coefficient of the heat absorbing plate and air is increased, and the heat property of the solar air heat collector is improved to the maximum extent by virtue of the combination of the swelled bubbles and the concave pits.
Description
Technical field
The present invention relates to solar energy heat utilization field, specifically, related to a kind of solar energy air heat collector.
Background technology
Solar energy air heat collector is a kind of solar heat collector take air as heating agent, is widely used in the fields such as solar heating, ventilation, dehumidifying.The most frequently used version is the plate type solar air collector, compare with vacuum tube solar heating element, it have simple in structure, seal request is low, do not need the advantages such as antifreeze, but the shortcoming such as it is low simultaneously also to exist collecting efficiency, and heat loss is large.How further to improve the collecting efficiency of plate type solar air collector, be the target that the scientific research personnel pursues always.
The plate type solar air collector mainly is comprised of single or multiple lift glass cover-plate, absorber plate, heat-insulation layer and protecting sheathing.Its operation principle is: after solar radiant energy sees through glass cover-plate, the absorber plate that its energy is coated with selective coating absorbs, and energy transform into heat energy, then passes to working medium, the temperature of working medium is raise, and flowing heat delivery to the place that needs with heat by working medium.Because the runner of air from import to outlet is the place of resistance minimum, thus the very difficult each point that flows through equably on the absorber plate of air, cause heat exchange uneven, the collecting efficiency of heat collector is not high.
For the problems referred to above of plate type solar air collector, existing a lot of corrective measures.Invention such as patent publication No. CN200986333, it is characterized in that absorber plate is divided into two heat tunnels in above and below with heat collector cavity, increased air and in heat collector, added hot path, adopted simultaneously the waveform heat collection chip to have increased heating surface (area) (HS and strengthen the disturbance of air.The and for example invention of patent publication No. CN101178260A, it is characterized in that between absorber plate and insulation base plate, adopting airtight heating air duct, above heating air duct, be provided with the thermal-collecting tube of vacuum heat-preserving, make air between the thermal-collecting tube of heating air duct and vacuum heat-preserving, do secondary cycle and flow, in order to obtain better heat exchange.
Although the enforcement of above-mentioned patent has certain effect to the hot property that improves solar energy air heat collector, the amplitude that improves is less.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, thereby a kind of design science, collecting efficiency is high, practical, use cost is low solar energy air heat collector are provided.
To achieve these goals, the technical solution adopted in the present invention is: a kind of solar energy air heat collector, it comprises absorber plate, insulation shell and transparent cover plate, described transparent cover plate and described insulation shell consist of air cavity, described absorber plate is arranged in the described air cavity and with described air cavity and is divided into upper gas chamber and lower air chamber, offer air inlet and air outlet on the described insulation shell, described air inlet is communicated with described upper gas chamber and described lower air chamber, described air outlet is communicated with described upper gas chamber and described lower air chamber, described absorber plate is to be sinusoidal wave corrugated heat absorption thin plate, is distributed with bubbling and pit on the described absorber plate.
Based on above-mentioned, described bubbling and described pit are embarked on journey and are crisscross arranged.
Based on above-mentioned, a described absorber plate on the sunny side side is coated with selective heat absorbing coating.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, and specifically, the present invention adopts sinusoidal wave corrugated absorber plate not only can increase endotherm area, can also produce Multi reflection and absorption; The bubbling that increases on the absorber plate and pit have destroyed the boundary layer of Air Flow, thereby have increased the convection transfer rate of absorber plate and air, and the combination of the two has improved the hot property of solar energy air heat collector to greatest extent.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Fig. 4 is the enlarged diagram at I place among Fig. 2.
The specific embodiment
Below by the specific embodiment, technical scheme of the present invention is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of solar energy air heat collector, it comprises absorber plate 1, insulation shell 2 and transparent cover plate 3; Described transparent cover plate 3 is arranged on the top of described insulation shell 2 and consists of air cavity with described insulation shell 2, described absorber plate 1 is arranged in the described air cavity and four sidewalls and described insulation shell 2 are combined closely and described air cavity is divided into upper and lower two air cavitys, wherein, being upper gas chamber 4 between described absorber plate 1 and the described transparent cover plate 3, is lower air chamber 5 between described absorber plate 1 and described insulation shell 2 inner bottom surfaces; One end of described insulation shell 2 has the air inlet 6 that is communicated with described upper gas chamber 4 and described lower air chamber 5, and similarly, the other end of described insulation shell 2 has air outlet 7; Described absorber plate 1 is to be sinusoidal wave corrugated heat absorption thin plate, embarks on journey and be staggeredly equipped with bubbling 8 and pit 9 in the both sides of described absorber plate 1, and described absorber plate 1 an on the sunny side side is coated with selective heat absorbing coating.
In the time of work, described air inlet 6 external blower fans are when sunshine is radiated on the described absorber plate 1 through described transparent cover plate 3, because the selective heat absorbing coating of described absorber plate 1 plated surface, described absorber plate 1 changes into heat energy with the radiant energy of the sun, and produces high temperature.When the user needs hot blast, start blower fan, air flows into described upper gas chamber 4 and described lower air chamber 5 equably by described air inlet 6, and carries out sufficient heat exchange with described absorber plate 1, flows out from described air outlet 7 at last, thereby can obtain preferably heat transfer effect.
Owing on the described absorber plate 1 described bubbling 8 and described pit 9 being set, when air flows through described absorber plate 1, increased the disturbance of air, strengthened the heat exchange between air and the described absorber plate 1.Can well sunshine be carried out Multi reflection and be sinusoidal wave corrugated absorber plate 1, improve the absorptivity of described absorber plate 1, and on the basis that does not increase this solar energy air heat collector volume, be the irradiated area that sinusoidal wave corrugated absorber plate 1 has also further increased sunshine.Therefore, being sinusoidal wave corrugated absorber plate 1 cooperates described bubbling 8 and described pit 9 further to improve the hot property of this solar energy air heat collector.
Embodiment 2
The difference of the present embodiment and embodiment 1 is, has two air inlets and two air outlets on the described insulation shell, and wherein, the first air inlet and the first air outlet are communicated with respectively described upper gas chamber, and the second air inlet and the second air outlet are communicated with respectively described lower air chamber.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (3)
1. solar energy air heat collector, comprise absorber plate, insulation shell and transparent cover plate, described transparent cover plate and described insulation shell consist of air cavity, described absorber plate is arranged in the described air cavity and with described air cavity and is divided into upper gas chamber and lower air chamber, offer air inlet and air outlet on the described insulation shell, described air inlet is communicated with described upper gas chamber and described lower air chamber, described air outlet is communicated with described upper gas chamber and described lower air chamber, it is characterized in that: described absorber plate is to be sinusoidal wave corrugated heat absorption thin plate, is distributed with bubbling and pit on the described absorber plate.
2. solar energy air heat collector according to claim 1, it is characterized in that: described bubbling and described pit are embarked on journey and are crisscross arranged.
3. solar energy air heat collector according to claim 1 and 2 is characterized in that: a described absorber plate on the sunny side side is coated with selective heat absorbing coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105023937A CN102927695A (en) | 2012-11-30 | 2012-11-30 | Solar air heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105023937A CN102927695A (en) | 2012-11-30 | 2012-11-30 | Solar air heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927695A true CN102927695A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105023937A Pending CN102927695A (en) | 2012-11-30 | 2012-11-30 | Solar air heat collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759433A (en) * | 2014-01-20 | 2014-04-30 | 同济大学 | Novel flat-plate solar heat collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4203425A (en) * | 1978-07-31 | 1980-05-20 | Clark Dana A | Inflatable solar collector |
| CN85205391U (en) * | 1985-12-09 | 1987-02-25 | 宁夏新技术应用研究所 | Solar energy air thermal collector |
| CN201522111U (en) * | 2009-11-13 | 2010-07-07 | 杨舜琪 | Simulating panel solar collector |
| CN201850710U (en) * | 2010-11-12 | 2011-06-01 | 四川集热科技有限公司 | Simple solar air heat collector integrated with building |
| CN102087050A (en) * | 2010-12-31 | 2011-06-08 | 镇江新梦溪能源科技有限公司 | Solar hot-water hot-air supplying device |
| CN202947341U (en) * | 2012-11-30 | 2013-05-22 | 郑州大学 | Solar air collector |
-
2012
- 2012-11-30 CN CN2012105023937A patent/CN102927695A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4203425A (en) * | 1978-07-31 | 1980-05-20 | Clark Dana A | Inflatable solar collector |
| CN85205391U (en) * | 1985-12-09 | 1987-02-25 | 宁夏新技术应用研究所 | Solar energy air thermal collector |
| CN201522111U (en) * | 2009-11-13 | 2010-07-07 | 杨舜琪 | Simulating panel solar collector |
| CN201850710U (en) * | 2010-11-12 | 2011-06-01 | 四川集热科技有限公司 | Simple solar air heat collector integrated with building |
| CN102087050A (en) * | 2010-12-31 | 2011-06-08 | 镇江新梦溪能源科技有限公司 | Solar hot-water hot-air supplying device |
| CN202947341U (en) * | 2012-11-30 | 2013-05-22 | 郑州大学 | Solar air collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759433A (en) * | 2014-01-20 | 2014-04-30 | 同济大学 | Novel flat-plate solar heat collector |
| CN103759433B (en) * | 2014-01-20 | 2015-11-04 | 同济大学 | A kind of novel flat-plate solar thermal collector |
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Application publication date: 20130213 |