CN203148050U - Flat-plate solar thermal collector with vacuum heat insulating layer - Google Patents
Flat-plate solar thermal collector with vacuum heat insulating layer Download PDFInfo
- Publication number
- CN203148050U CN203148050U CN2013201531193U CN201320153119U CN203148050U CN 203148050 U CN203148050 U CN 203148050U CN 2013201531193 U CN2013201531193 U CN 2013201531193U CN 201320153119 U CN201320153119 U CN 201320153119U CN 203148050 U CN203148050 U CN 203148050U
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- outer cover
- flat
- plate
- insulating layer
- thermal
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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 utility model discloses a flat-plate solar thermal collector with a vacuum heat insulating layer. The flat-plate solar thermal collector with the vacuum heat insulating layer comprises a heat collecting plate (1) provided with a medium circulating space, a heat collection type liquid delivery pipe (4) is coiled on the heat collecting plate (1), an outer cover (2) is arranged outside the heat collecting plate (1), and a vacuum environment exists inside the outer cover (2). Multi-aspect improvements are performed on an existing flat-plate vacuum solar thermal collector, according to the design of the flat-plate solar thermal collector with the vacuum heat insulating layer, the vacuum layer is arranged outside an existing heat collecting plate, and then the flat-plate solar thermal collector with the vacuum heat insulating layer is achieved. The flat-plate solar thermal collector with the vacuum heat insulating layer has the advantages of being large in heat absorption area and small in heat dissipation area as a flat-plate water heater, and small in heat loss and good in warm preservation due to the fact that the flat-plate solar thermal collector is of a vacuum tube type.
Description
Technical field
The utility model relates to a kind of flat-plate solar heat collector with vacuum heat-insulating layer, belongs 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 the 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, heat radiation all around, and endotherm area compares greater than 3.14 with area of dissipation, and profile is attractive in appearance less in American-European countries's application inadequately.
Flat type solar heat collector, be made into the thermal-arrest plate by copper or aluminium sheet, thermal-arrest plate surface scribbles solar energy absorbing coating, thermal-arrest plate middle part is empty, charge into heat-conduction medium, transparent glass cover-plate on the upper cover is because heat loss is big, 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 to fail to solve, and therefore come to nothing.
Summary of the invention
At the above-mentioned defective that exists in the prior art, the technical problems to be solved in the utility model provides a kind of unit are solar energy utilization ratio height, heat loss is little, and the flat-plate solar heat collector of the band vacuum heat-insulating layer of good looking appearance can overcome the deficiencies in the prior art.
The utility model is by the following technical solutions:
The flat-plate solar heat collector of band vacuum heat-insulating layer, it comprises the thermal-arrest plate that is provided with the medium free air space, at thermal-arrest plate dish the heat collecting type woven hose is arranged, and is provided with outer cover outside the thermal-arrest plate, is vacuum environment in the outer cover.
In outer cover, be provided with supporter, flexible fixedly card between outer cover and thermal-arrest plate, an end of flexible fastening card is stuck on the heat collecting type woven hose.
Described outer cover is transparent housing, vacuumizes mouth at 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.Because outer cover is different with liquid in-out metal tube thermal coefficient of expansion and cover glass is fragile material, for preventing that the micro-crack that the interface thermal stress produces from influencing 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.
The thermal-arrest plate is made of metal or glass.
Offer the supporter patchhole at the thermal-arrest plate, the two ends of supporter all are connected with outer cover.
In thermal-arrest plate outer cover, getter is housed.
Compared with the prior art, the utility model has carried out multi-faceted improvement at existing flat type solar heat collector, its design is outside existing thermal-arrest plate vacuum layer to be set, achieved plate evacuated solar collector, it is big so just can to make the utility model both have a flat plate collector heat absorption area, the advantage that area of dissipation is little has again that the vacuum tube type heat loss is little, the advantage of 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 thermal-arrest backboard sunny side scribbles reflectance coating, reduces thermal radiation loss like this, improves thermal absorptivity; Outer cover is welded by the close glass solder of thermal coefficient of expansion by panel and backboard, can before the outer cover moulding, place in the outer cover thermal-arrest plate assembly and vacuum seal like this, 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 the 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.Between outer cover and thermal-arrest plate, be provided with fixing card, can guarantee the relative fixed of thermal-arrest plate and outer cover like this.Offer the supporter patchhole at the thermal-arrest plate, the two ends of supporter all are connected with outer cover, and supporter contacts for point with the thermal-arrest plate, and the minimizing heat loss also reduces difficulty of processing.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is another kind of structure schematic diagrames of the present utility model.
The specific embodiment:
Embodiment 1: as shown in Figure 1, the thermal-arrest 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, at thermal-arrest plate 1 dish heat collecting type woven hose 4 is arranged, medium in the heat collecting type woven hose 4 is water, antifreeze, oil, phase-change heat transfer working medium etc.Big for overcoming existing flat-plate solar heat collector heat loss, the defective that the thermal efficiency is not high, an airtight clear glass outer cover 2 is installed outside thermal-arrest plate 1 and heat collecting type woven hose 4, outer cover 2 is welded by glass solder by glass plate, be provided with at outer cover 2 and vacuumize mouth, be convenient to like this outer cover 2 inside are vacuumized processing, for ensureing that long-term vacuum is not fallen in the outer cover 2, in outer cover 2, be provided with getter.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; Thermal-arrest plate 1 fixedly be between outer cover 2 and thermal-arrest plate 1, to be provided with flexible fastening card 5, an end of flexible fastening card 5 is stuck on the heat collecting type woven hose 4.Install for convenient, 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, in the outer cover 2 of hollow, be provided with supporter 3, 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 thermal-arrest plate 1, the perforate aperture is greater than the diameter of supporter 3, supporter 3 does not contact with thermal-arrest plate 1 during installation, to reduce calorie spread, supporter 3 passes two ends, thermal-arrest plate 1 back and all is connected with outer cover 2.
B, as Fig. 2, in the both ends of the surface of thermal-arrest plate 1 supporter 3 is set all, the other end of supporter 3 is connected with outer cover 2.
Claims (10)
1. flat-plate solar heat collector with vacuum heat-insulating layer, it comprises the thermal-arrest plate (1) that is provided with the medium free air space, it is characterized in that: at thermal-arrest plate (1) dish heat collecting type woven hose (4) being arranged, be provided with outer cover (2) outside thermal-arrest plate (1), is vacuum environment in the outer cover (2).
2. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 1, it is characterized in that: in outer cover (2), be provided with supporter (3), flexible fixedly card (5) between outer cover (2) and thermal-arrest plate (1), an end of flexible fastening card (5) is stuck on the heat collecting type woven hose (4).
3. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 2, it is characterized in that: described outer cover (2) is transparent housing, vacuumizes mouth at outer cover (2).
4. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 2, it is characterized in that: the opaco at outer cover (2) scribbles reflectance coating.
5. the flat-plate solar heat collector of band vacuum heat-insulating layer 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. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 2 is characterized in that: described supporter (3) is for being provided with the tubing of perforate.
7. the flat-plate solar heat collector of band vacuum heat-insulating layer 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. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 4, it is characterized in that: thermal-arrest plate (1) is made of metal or glass.
9. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 1, it is characterized in that: offer the supporter patchhole at thermal-arrest plate (1), the two ends of supporter (3) all are connected with outer cover (2).
10. the flat-plate solar heat collector of band vacuum heat-insulating layer according to claim 2 is characterized in that: in thermal-arrest plate outer cover (2) getter is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201531193U CN203148050U (en) | 2013-03-30 | 2013-03-30 | Flat-plate solar thermal collector with vacuum heat insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201531193U CN203148050U (en) | 2013-03-30 | 2013-03-30 | Flat-plate solar thermal collector with vacuum heat insulating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148050U true CN203148050U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201531193U Expired - Fee Related CN203148050U (en) | 2013-03-30 | 2013-03-30 | Flat-plate solar thermal collector with vacuum heat insulating layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162436A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type vacuum heat-insulated solar thermal collector |
-
2013
- 2013-03-30 CN CN2013201531193U patent/CN203148050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162436A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type vacuum heat-insulated solar thermal collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20190330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |