CN103162436A - Plate-type vacuum heat-insulated solar thermal collector - Google Patents
Plate-type vacuum heat-insulated solar thermal collector Download PDFInfo
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- CN103162436A CN103162436A CN2013101079444A CN201310107944A CN103162436A CN 103162436 A CN103162436 A CN 103162436A CN 2013101079444 A CN2013101079444 A CN 2013101079444A CN 201310107944 A CN201310107944 A CN 201310107944A CN 103162436 A CN103162436 A CN 103162436A
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- outer cover
- plate
- solar thermal
- thermal collector
- vacuum heat
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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
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Abstract
The invention discloses a plate-type vacuum heat-insulated solar thermal collector which comprises a thermal collecting plate (1) which is provided a space for medium circulating, a thermal-collecting-type infusion tube (4) is coiled on the thermal collecting plate (1), an outer cover (2) is arranged outside the thermal collecting plate (1), and the inside of the outer cover (2) is a vacuum environment. The plate-type vacuum heat-insulated solar thermal collector carries out multidirectional improvement on the existing plate-type solar thermal collector, the conception of the plate-type vacuum heat-insulated 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 vacuum heat-insulated 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 tube-type.
Description
Technical field
The present invention relates to a kind of plate vacuum heat-insulation solar thermal collector, 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 vacuum heat-insulation solar thermal collector of good looking appearance can overcome the deficiencies in the prior art.
The present invention is by the following technical solutions:
Plate vacuum heat-insulation solar thermal collector, it comprises the collecting plate that is provided with the medium free air space, dish has the heat collecting type woven hose on collecting plate, is provided with outer cover outside collecting plate, is vacuum environment in outer cover.
Be provided with supporter in outer cover, flexible fixed card between outer cover and collecting plate, an end of elastic fixing clamp is stuck on the heat collecting type woven hose.
Described outer cover is transparent housing, vacuumizes mouth on outer cover.
Opaco at outer cover scribbles reflectance coating.
Inlet and the liquid outlet of heat collecting type woven hose pass outer cover, are provided with the thermal coefficient of expansion transition rings in the junction of inlet and liquid outlet and outer cover, and thermal coefficient of expansion transition rings and outer cover adopt the glass solder welding.And cover glass different from liquid in-out metal tube thermal coefficient of expansion is fragile material due to outer cover, for preventing that the micro-crack that the interface thermal stress produces from affecting vacuum, so need thermal expansion metal coefficient transition rings, be provided with thermal expansion metal coefficient transition rings at feed tube and drain pipe and outer cover junction, feed tube and drain pipe adopt the close glass solder of thermal coefficient of expansion to weld by thermal coefficient of expansion transition rings and outer cover.
Described supporter is the tubing that is provided with perforate.
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.
Offer the supporter patchhole on collecting plate, the two ends of supporter all are connected with outer cover.
In the collecting plate outer cover, getter is housed.
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 in the middle of the outer cover, 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, the thermal coefficient of expansion transition rings is adopted 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 perforate is adopted in the cross section of supporter, can reduce heat transfer area like this, reduces heat loss.Be provided with fixed card between outer cover and collecting plate, can guarantee like this relative fixing of collecting plate and outer cover.Offer the supporter patchhole on collecting plate, the two ends of supporter all are connected with outer cover, and supporter, reduces heat loss and reduces difficulty of processing for point contacts with collecting plate.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is another kind of structure schematic diagrames of the present invention.
The specific embodiment:
Embodiment 1: as shown in Figure 1, the collecting plate 1 of plate vacuum heat-insulation solar thermal collector adopts glass, metal or pottery to make, scribble solar spectrum selective absorbing film or black coating on its surface, dish has heat collecting type woven hose 4 on collecting plate 1, medium in heat collecting type woven hose 4 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 collecting plate 1 and airtight clear glass outer cover 2 of the outer installation of heat collecting type woven hose 4, outer cover 2 is welded by glass solder by glass plate, be provided with on outer cover 2 and vacuumize mouth, be convenient to like this outer cover 2 inside are vacuumized processing, do not fall for ensureing the interior long-term vacuum of outer cover 2, be provided with getter in outer cover 2.The inlet of heat collecting type woven hose 4 passes outer cover 2 with liquid outlet and is connected with associated pipe, is provided with the thermal coefficient of expansion transition rings in the junction of inlet and liquid outlet and outer cover 2, and thermal coefficient of expansion transition rings and outer cover 2 adopt the glass solder welding; Collecting plate 1 be fixedly to be provided with elastic fixing clamp 5 between outer cover 2 and collecting plate 1, an end of elastic fixing clamp 5 is stuck on heat collecting type woven hose 4.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 can adopt glass, plastics or metal tube.The connected mode of supporter 3 is by following dual mode
A, as Fig. 1, perforate on collecting plate 1, the perforate aperture is greater than the diameter of supporter 3, during installation, supporter 3 does not contact with collecting plate 1, reducing calorie spread, supporter 3 passes collecting plate 1 rear two ends and all is connected with outer cover 2.
B, as Fig. 2, in the both ends of the surface of collecting plate 1, supporter 3 is set all, the other end of supporter 3 is connected with outer cover 2.
Claims (10)
1. plate vacuum heat-insulation solar thermal collector, it comprises the collecting plate (1) that is provided with the medium free air space, it is characterized in that: at the upper dish of collecting plate (1), heat collecting type woven hose (4) being arranged, be provided with outer cover (2) outside collecting plate (1), is vacuum environment in outer cover (2).
2. plate vacuum heat-insulation solar thermal collector according to claim 1, it is characterized in that: be provided with supporter (3) in outer cover (2), flexible fixed card (5) between outer cover (2) and collecting plate (1), an end of elastic fixing clamp (5) is stuck on heat collecting type woven hose (4).
3. plate vacuum heat-insulation solar thermal collector according to claim 2, it is characterized in that: described outer cover (2) is transparent housing, vacuumizes mouth on outer cover (2).
4. plate vacuum heat-insulation solar thermal collector according to claim 2, it is characterized in that: the opaco at outer cover (2) scribbles reflectance coating.
5. plate vacuum heat-insulation solar thermal collector according to claim 3, it is characterized in that: the inlet of heat collecting type woven hose (4) and liquid outlet pass outer cover (2), junction at 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.
6. plate vacuum heat-insulation solar thermal collector according to claim 2 is characterized in that: described supporter (3) is for being provided with the tubing of perforate.
7. plate vacuum heat-insulation solar thermal collector 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 vacuum heat-insulation solar thermal collector according to claim 4, it is characterized in that: collecting plate (1) is made of metal or glass.
9. plate vacuum heat-insulation solar thermal collector according to claim 1, it is characterized in that: offer the supporter patchhole on collecting plate (1), the two ends of supporter (3) all are connected with outer cover (2).
10. plate vacuum heat-insulation solar thermal collector according to claim 2, is characterized in that: in collecting plate outer cover (2), getter is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101079444A CN103162436A (en) | 2013-03-30 | 2013-03-30 | Plate-type vacuum heat-insulated solar thermal collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101079444A CN103162436A (en) | 2013-03-30 | 2013-03-30 | Plate-type vacuum heat-insulated solar thermal collector |
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| Publication Number | Publication Date |
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| CN103162436A true CN103162436A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101079444A Pending CN103162436A (en) | 2013-03-30 | 2013-03-30 | Plate-type vacuum heat-insulated solar thermal collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923580A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Self-circulation anti-freezing expansion heat-collecting device and roadbed thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398585Y (en) * | 1999-07-02 | 2000-09-27 | 曹治猛 | Vacuum solar thermal gathering plate |
| CN2522579Y (en) * | 2001-12-07 | 2002-11-27 | 唐健正 | Vacuum glass with getter |
| CN1563846A (en) * | 2004-04-07 | 2005-01-12 | 黄永年 | Two-way-through solar glass vacuum heat collection tubes |
| CN2861875Y (en) * | 2006-01-12 | 2007-01-24 | 吴艳频 | Solar vacuum glass heat-collecting tube |
| CN2903800Y (en) * | 2006-02-27 | 2007-05-23 | 刘元生 | Plate type glass vacuum solar energy heat collector |
| CN201302310Y (en) * | 2008-11-20 | 2009-09-02 | 俞祖文 | Vacuum flatbed solar thermal collector |
| CN101737960A (en) * | 2008-11-20 | 2010-06-16 | 俞祖文 | Vacuum flat-plate solar thermal collector |
| 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 |
| CN203148050U (en) * | 2013-03-30 | 2013-08-21 | 贵州新能绿色能源有限公司 | Flat-plate solar thermal collector with vacuum heat insulating layer |
-
2013
- 2013-03-30 CN CN2013101079444A patent/CN103162436A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398585Y (en) * | 1999-07-02 | 2000-09-27 | 曹治猛 | Vacuum solar thermal gathering plate |
| CN2522579Y (en) * | 2001-12-07 | 2002-11-27 | 唐健正 | Vacuum glass with getter |
| CN1563846A (en) * | 2004-04-07 | 2005-01-12 | 黄永年 | Two-way-through solar glass vacuum heat collection tubes |
| CN2861875Y (en) * | 2006-01-12 | 2007-01-24 | 吴艳频 | Solar vacuum glass heat-collecting tube |
| CN2903800Y (en) * | 2006-02-27 | 2007-05-23 | 刘元生 | Plate type glass vacuum solar energy heat collector |
| CN201302310Y (en) * | 2008-11-20 | 2009-09-02 | 俞祖文 | Vacuum flatbed solar thermal collector |
| CN101737960A (en) * | 2008-11-20 | 2010-06-16 | 俞祖文 | Vacuum flat-plate solar thermal collector |
| 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 |
| CN203148050U (en) * | 2013-03-30 | 2013-08-21 | 贵州新能绿色能源有限公司 | Flat-plate solar thermal collector with vacuum heat insulating layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923580A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Self-circulation anti-freezing expansion heat-collecting device and roadbed thereof |
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Application publication date: 20130619 |