CN102338479A - Negative-pressure type flat-plate solar collector - Google Patents
Negative-pressure type flat-plate solar collector Download PDFInfo
- Publication number
- CN102338479A CN102338479A CN2010102387186A CN201010238718A CN102338479A CN 102338479 A CN102338479 A CN 102338479A CN 2010102387186 A CN2010102387186 A CN 2010102387186A CN 201010238718 A CN201010238718 A CN 201010238718A CN 102338479 A CN102338479 A CN 102338479A
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- China
- Prior art keywords
- negative pressure
- plate
- solar collector
- absorber plate
- type flat
- 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.)
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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 negative-pressure type flat-plate solar collector. One end of an absorber plate of the collector is communicated with a negative pressure chamber, the other end is communicated with a normal pressure chamber, a circulating pump can pump the liquid in the negative pressure chamber to the normal pressure chamber, so that the liquid level in the negative pressure chamber can be declined to generate negative pressure and then the liquid can flow to the negative pressure chamber by an absorber plate, thus, a negative pressure circulation can be formed. Compared with the positive pressure circulation used by the traditional flat-plate solar collector, the bearing requirement of the negative pressure circulation on the absorber plate is substantially reduced, so the absorber plate can be manufactured by gluing an upper metal sheet and a lower metal sheet, a dotted or linear convex mark can be extruded from one of the two metal sheets, and a gap with the thickness range of 0.1mm-1mm can be expanded between the two metal sheets glued together so as to form a large area of flat channel. The purposes of manufacturing process simplification and cost reduction can be reached without welding and bearing by thicker materials; and meanwhile, the flat channel with a large area can be easy to form and a heat transfer effect can be improved.
Description
Technical field
The present invention relates to a kind of solar energy heat utilization device, be specifically related to a kind of flat-plate solar collector.
Background technology
At present, solar thermal collector mainly contains vacuum tube solar heating element and flat-plate solar collector, wherein flat-plate solar collector more attractive in appearance and can better with architecture-integral.But shortcoming is that its metal absorber plate manufacture difficulty is bigger, and cost is higher! So popularize be not as such as vacuum tube solar heating element in China at present.
Summary of the invention
The objective of the invention is to the problems referred to above to flat-plate solar collector; A kind of suction type flat-plate solar collector is provided; Change traditional flat-plate solar collector into negative pressure operation (promptly manage internal pressure and be lower than atmospheric pressure) at operation under positive pressure (promptly manage internal pressure and be higher than atmospheric pressure); Bearing requirements to absorber plate can reduce significantly like this, reaches simplified manufacturing technique, the purpose that reduces cost.
For achieving the above object, technical scheme of the present invention is following: a kind of suction type flat-plate solar collector comprises absorber plate, transparent cover plate, heat-insulation layer, circulating pump, normal pressure storehouse, negative pressure cabin and heat exchanger.Said absorber plate is made up of two sheet metals that fit together up and down, and the convex epirelief that is forced out point-like or wire on the piece of metal sheet is wherein arranged, and convex epirelief struts the slit with two sheet metals that fit together and forms large-area flat flow channel; This flat flow channel is equivalent to the comb on traditional absorber plate, but its large-area odds ratio comb more can be covered with whole absorber plate equably, improves heat-transfer effect; Also can on sheet metal, burn-on in addition or be stained with the strong point or Support Level; Be used for slit between guarantee fund's metal thin plate, act on identical with convex epirelief, slit thickness range 0.1mm to 1mm; As making flow resistance very big because of the molecular force between glass and the water less than 0.1mm; Be difficult to circulation, then have too thick and heavyly greater than 1mm, expend shortcomings such as too much liquid and circulating energy.Two collectors of the recessed formation in the two ends of flat flow channel, a collector is communicated with the normal pressure storehouse, and another collector is communicated with negative pressure cabin.Circulating pump is arranged in the negative pressure cabin, and circulating pump can descend the negative pressure cabin liquid level and produce negative pressure with the liquid pump in the negative pressure cabin to the normal pressure storehouse; Make liquid flow to negative pressure cabin by absorber plate, so just formed the negative pressure circulation, this negative pressure circulation can avoid two sheet metals that fit together to be strutted by the normal pressure of liquid; Be the negative pressure between guarantee fund's metal thin plate; The installation site of normal pressure storehouse and negative pressure cabin can not be higher than absorber plate, and top, normal pressure storehouse has steam vent, can not raise to guarantee normal pressure storehouse internal pressure.Heat exchanger can be connected between absorber plate and the negative pressure cabin, and liquid is passed to the domestic hot-water at the heat that absorber plate absorbs through heat exchanger.
The invention has the beneficial effects as follows that change traditional flat-plate solar collector into the negative pressure operation at operation under positive pressure, the bearing requirements to absorber plate can reduce significantly like this; Reach simplified manufacturing technique; The purpose that reduces cost is convenient to form large-area flat flow channel simultaneously, improves heat-transfer effect.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Accompanying drawing is the structural representation of invention.
1. transparent cover plates among the figure are 2. gone up sheet metal, 3. descend sheet metal, 4. convex epirelief, and 5. collector, 6. heat-insulation layer, 7. steam vent, 8. normal pressure storehouse, 9. negative pressure cabin, 10. circulating pump,, 11. heat exchangers, 12. collectors.
The specific embodiment
In the drawings; Between transparent cover plate (1) and the heat-insulation layer (6) is absorber plate, and absorber plate is pressed with the convex epirelief (4) that is evenly distributed by last sheet metal (2) and following sheet metal (3) formation that fits together on the following sheet metal (3); Like this when just being strutted certain thickness slit between two plates after last sheet metal (2) and following sheet metal (3) applying; Formation is uniformly distributed with the large tracts of land flat flow channel in the absorber plate, recessed formation collectors in the two ends of flat flow channel (5) and collector (12), and collector (12) links to each other with negative pressure cabin (9) through heat exchanger (11); Collector (5) links to each other with normal pressure storehouse (8); Circulating pump (10) is arranged in the negative pressure cabin (9), and circulating pump (10) import is left in negative pressure cabin (9), and outlet is opened in normal pressure storehouse (8).Top, normal pressure storehouse (8) has steam vent (7).
When sunlight is arranged; Can make cycle fluid by water, start circulating pump (10) from negative pressure cabin (9) suction, internal pump water toward normal pressure storehouse (8); Negative pressure cabin (9) liquid level is descended produce negative pressure; Negative pressure makes pump flow to collector (12) to the water of normal pressure storehouse (8) by the flat flow channel between sheet metal (2) and the following sheet metal (3) on collector (5) process, flows back to negative pressure cabin (9) by collector (12) again, has so just formed the negative pressure circulation.This negative pressure circulation can avoid absorber plate to be strutted by the liquid normal pressure, and for guaranteeing the negative pressure in the absorber plate, the installation site of normal pressure storehouse (8) and negative pressure cabin (9) can not be higher than absorber plate; And top, normal pressure storehouse (8) has steam vent (7); If owing to other reason, raising gradually such as normal pressure storehouse (8), operation back temperature makes the air expanded by heating storehouse in, during the pressure rising; The outside exhaust of steam vent (7) meeting or not raise to guarantee normal pressure storehouse (8) internal pressure.Thereby guarantee that absorber plate can not arrive malleation and destroy.So only need to get final product to carrying out the perhaps simple adhering and sealing of flanging pressing around the absorber plate.Need not welding and come pressure-bearing, so just simplified production technology, reduce manufacturing cost with thicker material.Heat exchanger (11) is connected between collector (12) and the negative pressure cabin (9), and recirculated water is passed to the domestic hot-water at the heat that absorber plate absorbs through heat exchanger (11).
Claims (7)
1. a suction type flat-plate solar collector comprises absorber plate, transparent cover plate, heat-insulation layer and circulating pump, it is characterized in that: absorber plate one end is communicated with negative pressure cabin, and the other end is communicated with the normal pressure storehouse, and pump inlet is opened in negative pressure cabin, and outlet is opened in the normal pressure storehouse.
2. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that absorber plate is made up of two sheet metals that fit together up and down.
3. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that having the convex epirelief that is forced out point-like or wire on the piece of metal sheet at least in two sheet metals of absorber plate.
4. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that between two sheet metals of absorber plate the strong point or Support Level being arranged.
5. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that the clearance distance between two sheet metals of absorber plate is 0.1mm to 1mm.
6. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that having two collectors of the recessed formation in a slice two ends at least among two sheet metals of absorber plate.
7. according to claims 1 described a kind of suction type flat-plate solar collector, it is characterized in that top, normal pressure storehouse has steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102387186A CN102338479A (en) | 2010-07-27 | 2010-07-27 | Negative-pressure type flat-plate solar collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102387186A CN102338479A (en) | 2010-07-27 | 2010-07-27 | Negative-pressure type flat-plate solar collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338479A true CN102338479A (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102387186A Pending CN102338479A (en) | 2010-07-27 | 2010-07-27 | Negative-pressure type flat-plate solar collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN102338479A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637989Y (en) * | 2003-07-17 | 2004-09-01 | 刘保旺 | Negative pressure evaporative plate solar heat collector |
| CN2864500Y (en) * | 2006-01-11 | 2007-01-31 | 丹阳市绿洲热能科技有限公司 | Heat collector for flat solar energy water heater |
| CN201731650U (en) * | 2010-05-11 | 2011-02-02 | 王勇 | Curtain wall-type flat plate solar heat collector |
| CN201795608U (en) * | 2010-07-27 | 2011-04-13 | 时剑 | Negative pressure type flat-plate solar heat collector |
-
2010
- 2010-07-27 CN CN2010102387186A patent/CN102338479A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637989Y (en) * | 2003-07-17 | 2004-09-01 | 刘保旺 | Negative pressure evaporative plate solar heat collector |
| CN2864500Y (en) * | 2006-01-11 | 2007-01-31 | 丹阳市绿洲热能科技有限公司 | Heat collector for flat solar energy water heater |
| CN201731650U (en) * | 2010-05-11 | 2011-02-02 | 王勇 | Curtain wall-type flat plate solar heat collector |
| CN201795608U (en) * | 2010-07-27 | 2011-04-13 | 时剑 | Negative pressure type flat-plate solar heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Blueview Solar Co.,Ltd. Shi Jian Document name: Notification of Patent Invention Entering into Substantive Examination Stage |
|
| DD01 | Delivery of document by public notice |
Addressee: Sword of Shenzhen blue Solar Energy Ltd Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Blueview Solar Co.,Ltd. Document name: Notification that Application Deemed to be Withdrawn |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |
|
| WD01 | Invention patent application deemed withdrawn after publication |