CN103162431A - Plate-type high-efficiency solar thermal collector - Google Patents
Plate-type high-efficiency solar thermal collector Download PDFInfo
- Publication number
- CN103162431A CN103162431A CN2013101079340A CN201310107934A CN103162431A CN 103162431 A CN103162431 A CN 103162431A CN 2013101079340 A CN2013101079340 A CN 2013101079340A CN 201310107934 A CN201310107934 A CN 201310107934A CN 103162431 A CN103162431 A CN 103162431A
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- China
- Prior art keywords
- outer cover
- plate
- solar energy
- high efficiency
- energy collector
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- 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 discloses a plate-type high-efficiency solar thermal collector which comprises a thermal collecting plate (1) which is provided a space for medium circulating, wherein an outer cover (2) is arranged outside the thermal collecting plate (1), the inside of the outer cover (2) is a vacuum environment, and a supporting object is arranged in the middle of the outer cover to resist atmospheric pressure to form a vacuum space. The plate-type high-efficiency solar thermal collector carries out multidirectional improvement on the existing plate-type solar thermal collector, the conception of the plate-type high-efficiency solar thermal collector is that a vacuum layer is arranged outside the existing thermal collecting plate, and a plate-type vacuum solar thermal collector is enabled to be achieved. The plate-type high-efficiency solar thermal collector not only has the advantages of being large in heat absorption area and small in heat radiating area of a plate-type water heater, but also has the advantages of being little in heat loss and good in heat retaining property in vacuum tubes.
Description
Technical field
The present invention relates to a kind of plate solar energy collector in high efficiency, belong to solar energy optical-thermal switch technology field.
Background technology
Solar thermal collector is that solar energy is converted into heat energy, and water is heated to high-temperature from low temperature, to satisfy people's a kind of equipment that hot water uses in life, production.Existing solar thermal collector mainly is divided into two classes, and its structure and pluses and minuses are:
Vacuum tube solar heating element, vacuum tube collector are arranged by many vacuum tubes and are formed, must be gapped between tube and tube, and the vacuum tube ectonexine also must be gapped, so the solar energy utilization ratio of vacuum tube collector is lower; Vacuum tube is cylindrical single face heat absorption, the surrounding heat radiation, and endotherm area compares greater than 3.14 with area of dissipation, and profile is attractive in appearance not less in American-European countries's application.
Flat type solar heat collector, be made into collecting plate by copper or aluminium sheet, the collecting plate surface scribbles solar energy absorbing coating, the collecting plate middle part is empty, be filled with heat-conduction medium, transparent glass cover-plate on upper cover is because heat loss is large, efficient is not high, only for almost not working in heating in summer, winter.
Abroad once had the inner evacuated theoretic discussion of flat plate collector, but because glass capsulation and glass and metal sealing problem can not solve, can't realize keeping for a long time vacuum; Vacuum seal simultaneously and plate container and atmospheric pressure cause the contradiction of glass breakage also could not solve, and therefore come to nothing.
Summary of the invention
For the defects that exists in prior art, the technical problem to be solved in the present invention is to provide that a kind of unit are solar energy utilization ratio is high, and heat loss is little, and the plate solar energy collector in high efficiency of good looking appearance can overcome the deficiencies in the prior art.
The present invention is by the following technical solutions: plate solar energy collector in high efficiency, it comprises the collecting plate that is provided with the medium free air space, is provided with outer cover outside collecting plate, is vacuum environment in outer cover.
Be provided with supporter in outer cover.
Described outer cover is transparent housing, vacuumizes mouth on outer cover.
Outer cover at the collecting plate opaco scribbles reflectance coating.
Be connected with metal-made feed tube and drain pipe on collecting plate.Described supporter is for offering pertusate tubing.
Outer cover is the glass outer cover, and outer cover is welded by glass solder by glass plate, vacuumizes the back side that mouth is welded in outer cover; Inlet and liquid outlet also pass from the back side of outer cover.
Collecting plate is made of metal or glass.
In the collecting plate outer cover, getter is housed.
Be provided with the thermal coefficient of expansion transition rings at feed tube and drain pipe and outer cover junction, the thermal coefficient of expansion transition rings adopts the glass solder welding with outer cover again.
Compared with the prior art, the present invention has carried out multi-faceted improvement on existing flat type solar heat collector, its design is outside existing collecting plate, vacuum layer to be set, achieved plate evacuated solar collector, so just can make the present invention both have a flat plate collector heat absorption area large, the advantage that area of dissipation is little has advantages of that again the vacuum tube type heat loss is little, good heat preservation performance.Be provided with supporter between outer cover inwall and collecting plate, can guarantee that like this outer cover can resist atmospheric pressure; Inwall at the collecting plate opaco scribbles reflectance coating, reduces like this thermal radiation loss, improves thermal absorptivity; Outer cover is welded by the close glass solder of thermal coefficient of expansion by panel and backboard, can the collecting plate assembly be placed in like this in outer cover before the outer cover moulding and vacuum seal.If the material of water inlet pipe and outlet pipe is different from the outer cover material, adopt the thermal coefficient of expansion transition rings in the sealing of water inlet pipe and outlet pipe and outer cover, can guarantee sealing effectiveness like this, guarantee stable vacuum environment in outer cover; The tubing that is provided with the hole is adopted in the cross section of supporter, can reduce heat transfer area like this, reduces heat loss.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention.
The specific embodiment:
Embodiment 1: as shown in Figure 1, the collecting plate 1 of plate solar energy collector in high efficiency adopts glass, metal or pottery to make, scribble solar spectrum selective absorbing film or black coating on its surface, the interior medium free air space of collecting plate 1, described medium is water, antifreeze, oil, phase-change heat transfer working medium etc.Large for overcoming existing flat-plate solar heat collector heat loss, the defective that the thermal efficiency is not high, at airtight clear glass outer cover 2 of the outer installation of collecting plate 1, outer cover 2 is welded by glass solder by glass plate, be provided with on outer cover 2 and vacuumize mouth, convenient outer cover 2 inside are vacuumized processing, be provided with getter for ensureing that the interior long-term vacuum of outer cover 2 does not reduce, be connected with feed tube and the drain pipe of medium circulation on collecting plate 1, one end of feed tube and drain pipe is in outside outer cover 2, and it is connected with associated pipe; The junction of inlet and liquid outlet and outer cover 2 is provided with the thermal coefficient of expansion transition rings, and thermal coefficient of expansion transition rings and outer cover 2 adopt the glass solder welding, if collecting plate, feed tube and drain pipe adopt glassware, the thermal coefficient of expansion transition rings need be set; For convenience of installing, the back side that vacuumizes mouth, inlet and liquid outlet outer cover 2 that passes from outer cover 2 passes.
For preventing outer cover 2 fragmentations, be provided with supporter 3 in the outer cover 2 of hollow, supporter 3 adopts the tubing that is provided with perforate to make, and supporter 3 can adopt glass, plastics or metal tube.The connected mode of supporter 3 is, in the both ends of the surface of collecting plate 1, supporter 3 is set all, and the other end of supporter 3 is connected with outer cover 2.
Claims (10)
1. plate solar energy collector in high efficiency, it comprises the collecting plate (1) that is provided with the medium free air space, it is characterized in that: being provided with outer cover (2) outside collecting plate (1), is vacuum environment in outer cover (2).
2. plate solar energy collector in high efficiency according to claim 1, is characterized in that: be provided with supporter (3) in outer cover (2).
3. plate solar energy collector in high efficiency according to claim 2, it is characterized in that: described outer cover (2) is transparent housing, vacuumizes mouth on outer cover (2).
4. plate solar energy collector in high efficiency according to claim 2, it is characterized in that: the outer cover (2) at the collecting plate opaco scribbles reflectance coating.
5. plate solar energy collector in high efficiency according to claim 3, is characterized in that: be connected with metal-made feed tube and drain pipe on collecting plate (1).
6. plate solar energy collector in high efficiency according to claim 2, it is characterized in that: described supporter (3) is for offering pertusate tubing.
7. plate solar energy collector in high efficiency according to claim 5, it is characterized in that: outer cover (2) is the glass outer cover, and outer cover (2) is welded by glass solder by glass plate, vacuumizes the back side that mouth is welded in outer cover (2); Inlet and liquid outlet also pass from the back side of outer cover (2).
8. plate solar energy collector in high efficiency according to claim 4, it is characterized in that: collecting plate (1) is made of metal or glass.
9. plate solar energy collector in high efficiency according to claim 2, is characterized in that: in collecting plate outer cover (2), getter is housed.
10. plate solar energy collector in high efficiency according to claim 7 is characterized in that:, be provided with the thermal coefficient of expansion transition rings at feed tube and drain pipe and outer cover (2) junction, the thermal coefficient of expansion transition rings adopts the glass solder welding with outer cover (2) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101079340A CN103162431A (en) | 2013-03-30 | 2013-03-30 | Plate-type high-efficiency solar thermal collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101079340A CN103162431A (en) | 2013-03-30 | 2013-03-30 | Plate-type high-efficiency solar thermal collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103162431A true CN103162431A (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101079340A Pending CN103162431A (en) | 2013-03-30 | 2013-03-30 | Plate-type high-efficiency solar thermal collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103162431A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522579Y (en) * | 2001-12-07 | 2002-11-27 | 唐健正 | Vacuum glass with getter |
| CN1492204A (en) * | 2003-09-09 | 2004-04-28 | 林子超 | Vacuum plate type solar energy collector |
| CN2641536Y (en) * | 2003-09-09 | 2004-09-15 | 林子超 | Vacuum plate type solar energy heat collector |
| CN1563846A (en) * | 2004-04-07 | 2005-01-12 | 黄永年 | Two-way-through solar glass vacuum heat collection tubes |
| CN102121284A (en) * | 2010-01-05 | 2011-07-13 | 北京环能海臣科技有限公司 | Laminated sheet glass curtain wall for regulating cavity vacuum degree for thermal insulation |
| CN203148087U (en) * | 2013-03-30 | 2013-08-21 | 贵州新能绿色能源有限公司 | Efficient flat-plate solar thermal collector with vacuum separating cover |
-
2013
- 2013-03-30 CN CN2013101079340A patent/CN103162431A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522579Y (en) * | 2001-12-07 | 2002-11-27 | 唐健正 | Vacuum glass with getter |
| CN1492204A (en) * | 2003-09-09 | 2004-04-28 | 林子超 | Vacuum plate type solar energy collector |
| CN2641536Y (en) * | 2003-09-09 | 2004-09-15 | 林子超 | Vacuum plate type solar energy heat collector |
| CN1563846A (en) * | 2004-04-07 | 2005-01-12 | 黄永年 | Two-way-through solar glass vacuum heat collection tubes |
| CN102121284A (en) * | 2010-01-05 | 2011-07-13 | 北京环能海臣科技有限公司 | Laminated sheet glass curtain wall for regulating cavity vacuum degree for thermal insulation |
| CN203148087U (en) * | 2013-03-30 | 2013-08-21 | 贵州新能绿色能源有限公司 | Efficient flat-plate solar thermal collector with vacuum separating cover |
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Application publication date: 20130619 |