CN103216949A - Vacuum plate solar collector - Google Patents
Vacuum plate solar collector Download PDFInfo
- Publication number
- CN103216949A CN103216949A CN2013101645790A CN201310164579A CN103216949A CN 103216949 A CN103216949 A CN 103216949A CN 2013101645790 A CN2013101645790 A CN 2013101645790A CN 201310164579 A CN201310164579 A CN 201310164579A CN 103216949 A CN103216949 A CN 103216949A
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- CN
- China
- Prior art keywords
- plate
- glass cover
- interlayer
- mineral wool
- solar collector
- 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 relates to the filed of solar energy utilization and particularly relates to a vacuum plate solar collector. A heat absorbing plate and a discharge tube are arranged in the interlayer between two glass cover plates. The vacuum plate solar collector is characterized in that a layer of solid silicon dioxide aerogel is arranged under the glass cover plates and the whole interlayer is vacuumed. Compared with similar products, the vacuum plate solar collector disclosed by the invention can acquire relatively higher heat collecting efficiency at the same temperature or acquire higher temperature at the same heat collecting efficiency.
Description
Technical field
The present invention relates to field of solar energy utilization, particularly relate to the evacuated flat panel solar heat collector.
Background technology
The daylighting area of flat plate collector with equate that with endotherm area therefore opposite with China, developed country's flat plate collector proportion is higher than solar vacuum tube collector.But, flat plate collector is because heat-insulating property is not so good, can not adopt the vacuum insulation method again, must use 2 layers of glass cover-plate at cold district, and the sunlight transmitance of 2 layers of glass approximately has only 64%, when flat plate collector is used for high temperature (as about 90 ℃ of refrigeration needs) thermal-arrest, except absorber plate must be made the selective coating, also need below glass cover-plate, add transparent mineral wool (U.S.) etc. and reduce the heat waste of heat from cover plate one side, even but transparent mineral wool, light transmittance neither be very good, and the heat-insulating property of mineral wool is not very very good.
Theory points out that the interlayer that optimal flat plate collector is answered should be a vacuum, and still, because atmospheric effect, every square metre pressure can reach 10 tons, and this is unpractical.
The plate glass that a kind of crying " vacuum glass " arranged is that many little support columns are set in interlayer, therefore, in the interlayer one deck absorber plate can't be set again.
Summary of the invention
The purpose of this invention is to provide the evacuated flat panel solar heat collector, allow theory come true.
Evacuated flat panel solar heat collector by this purpose design promptly is provided with absorber plate and comb in the interlayer between the layer glass cover plate, it is characterized in that below the described glass cover-plate the solid-state aerosil of one deck being set, and whole interlayer is evacuated.
Compare with other similar products, the present invention can obtain higher relatively collecting efficiency under same temperature, or same collecting efficiency obtains higher temperature down.
Description of drawings
Fig. 1 is the schematic diagram of one embodiment of the invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Referring to Fig. 1, the evacuated flat panel solar heat collector comprises formations such as transparent glass cover-plate 1 and glass cover-plate 2, absorber plate 3 and comb 6.It is characterized in that described glass cover-plate 1 following interlayer is provided with the solid-state aerosil 4 of layer of transparent; Interlayers above the described glass cover-plate 2 are provided with one deck heat-barrier material 5, be whole sealings by fusing around described glass cover-plate 1 and the glass cover-plate 2, and the interlayer between glass cover-plate 1 and the glass cover-plate 2 are evacuated; Aerosil is a kind of near complete transparent solid heat-insulating material, and its heat-insulating property is best in all heat-insulating material, thermal conductivity 0.012OW.M-1.K-1 under the silica aerogel normal pressure, thermal conductivity 0.001OW.M-1.K-1 under the vacuum.People such as Denmark Jensen charge into the 15mm silica aerogel in two blocks of glass, logical light rate reaches 76%.Certainly, if deduction falls another layer glass, light transmission rate can be higher, because sunshine needs only one deck glass cover-plate that sees through in the flat plate collector, promptly glass cover-plate 1.The compression strength of silica aerogel is 0.5-1MPa (atmospheric pressure is 0.1-1MPa), therefore, the interlayer of the flat plate collector that is filled with aerosil in the interlayer is evacuated, and the pressure that bears 10 tons every square metre is more than sufficient; Described heat-barrier material 5 is mineral wool or mineral wool, and adds getter in mineral wool or mineral wool, so that allow the whole interlayer between glass cover-plate 1 and the glass cover-plate 2 keep lasting vacuum state.Simultaneously heat-barrier material 5 also plays the effect of the atmospheric pressure that support glass cover plate 2 born, to prevent that glass cover-plate 2 from being crushed.
In described mineral wool or mineral wool, add titanium dioxide or aluminium powder or copper powder, can infrared reflecting, to increase heat-insulating property.
Claims (2)
1. the evacuated flat panel solar heat collector comprises that transparent glass cover-plate 1 and glass cover-plate 2, absorber plate 3 and comb 6 constitute, and it is characterized in that described glass cover-plate 1 following interlayer is provided with the solid-state aerosil 4 of layer of transparent; Interlayer above the described glass cover-plate 2 is provided with one deck heat-barrier material 5; Be whole sealings by fusing around described glass cover-plate 1 and the glass cover-plate 2, and the interlayer between glass cover-plate 1 and the glass cover-plate 2 is evacuated.
2. evacuated flat panel solar heat collector according to claim 1, it is characterized in that described heat-barrier material 5 is mineral wool or mineral wool, and in mineral wool or mineral wool, add getter, so that allow the whole interlayer between glass cover-plate 1 and the glass cover-plate 2 keep lasting vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101645790A CN103216949A (en) | 2013-04-16 | 2013-04-16 | Vacuum plate solar collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101645790A CN103216949A (en) | 2013-04-16 | 2013-04-16 | Vacuum plate solar collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216949A true CN103216949A (en) | 2013-07-24 |
Family
ID=48814965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101645790A Pending CN103216949A (en) | 2013-04-16 | 2013-04-16 | Vacuum plate solar collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216949A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492204A (en) * | 2003-09-09 | 2004-04-28 | 林子超 | Vacuum plate type solar energy collector |
| CN201429254Y (en) * | 2009-06-26 | 2010-03-24 | 丁琪 | Heat-insulated cavity of flat-plate solar collector |
| WO2011048320A2 (en) * | 2009-10-22 | 2011-04-28 | Saint-Gobain Glass France | Solar collector |
| CN201837095U (en) * | 2010-08-12 | 2011-05-18 | 黄必录 | High-temperature thin flat plate solar collector |
| CN102384594A (en) * | 2011-10-31 | 2012-03-21 | 许培和 | Flat type solar water heater |
-
2013
- 2013-04-16 CN CN2013101645790A patent/CN103216949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492204A (en) * | 2003-09-09 | 2004-04-28 | 林子超 | Vacuum plate type solar energy collector |
| CN201429254Y (en) * | 2009-06-26 | 2010-03-24 | 丁琪 | Heat-insulated cavity of flat-plate solar collector |
| WO2011048320A2 (en) * | 2009-10-22 | 2011-04-28 | Saint-Gobain Glass France | Solar collector |
| CN201837095U (en) * | 2010-08-12 | 2011-05-18 | 黄必录 | High-temperature thin flat plate solar collector |
| CN102384594A (en) * | 2011-10-31 | 2012-03-21 | 许培和 | Flat type solar water heater |
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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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130724 |