CN2210361Y - Glass vacuum heat collection tube - Google Patents
Glass vacuum heat collection tube Download PDFInfo
- Publication number
- CN2210361Y CN2210361Y CN94224429U CN94224429U CN2210361Y CN 2210361 Y CN2210361 Y CN 2210361Y CN 94224429 U CN94224429 U CN 94224429U CN 94224429 U CN94224429 U CN 94224429U CN 2210361 Y CN2210361 Y CN 2210361Y
- Authority
- CN
- China
- Prior art keywords
- tube
- vacuum
- vacuum tube
- absorbing film
- collecting
- 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.)
- Expired - Fee Related
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Classifications
-
- 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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- Thermal Insulation (AREA)
Abstract
The utility model relates to a glass vacuum heat-collection tube which is an open-type double-layer vacuum tube composed of an inner tube and an outer tube. A vacuum layer is between the outer tube and the inner tube. An absorbing film is coated on the surface of the inner tube, and a sealing gasket is arranged on the opening of the vacuum tube. The utility model is characterized in that a metal support is arranged between the bottom of the inner tube and the outer tube. Two holes are arranged on the sealing gasket, and a hot water pipe and a cold water pipe which pass through the holes are arranged in a vacuum tube cavity. The Al-N-C absorbing film is coated on the surface of the inner tube. The utility model has the advantages of simple structure, low cost, and high heat efficiency. The alpha value of the solar absorptance can reach 0.90 to 0.95. The utility model is suitable for being assembled into a solar water heater or a solar heating appliance.
Description
The utility model relates to the solar thermal collector that a kind of working fluid flows through the tubulose heat absorbing conduit, particularly glass heat-collecting vacuum tube.
Existing glass vacuum tube solar energy can thermal-collecting tube be to form solar water heater, boiler critical component.CN2158995 displacement type solar vacuum-tube water heater for example, its vacuum tube is the double layer vacuum tube that is made of interior pipe and outer tube, is vacuum layer between the inner and outer pipe, interior tube-surface is covered with solar spectrum selective absorbing film.CN90105230 discloses a kind of single glass tube, is coated with the AINxOy absorbing film on the heat-absorbing plate core in pipe.Which kind of material does not indicate absorbing film among the CN2158995 is, and CN90105230 Al-NxOy selective absorption film is to be coated on the metallic plate, should not be plated in glass surface.
The purpose of this utility model provides a kind of glass heat-collecting vacuum tube, and its solar absorptance α value reaches 0.90-0.95, and thermal efficiency height is applicable to and makes solar water heater or boiler.
The purpose of this utility model is to realize like this, a kind of glass heat-collecting vacuum tube, it is the open type double layer vacuum tube that constitutes by interior pipe and outer tube, be vacuum layer between outer tube and the interior pipe, interior tube-surface is coated with absorbing film, the vacuum tube opening part is provided with sealing gasket, it is characterized in that being provided with a metallic support between interior pipe bottom and outer tube; Sealing gasket is provided with two holes, and hot-water line and cold water pipe pass hole and place in the vacuum tube chamber; Interior tube-surface coats one deck Al-N-C absorbing film.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the glass heat-collecting vacuum tube structural representation;
Fig. 2 is embodiment, and two-tube water heater is formed schematic diagram.
Among the figure:
Pipe 2--outer tube 3-vacuum layer 4-absorbing film in the 1--
5--sealing gasket 6--support 7--hole 8--hot-water line
9--cold water pipe 10--connector 11--valve
12--heat-collecting tube tail seat 13--shower nozzle
Referring to Fig. 1, the open type double layer vacuum tube that this glass heat-collecting vacuum tube is made of interior pipe (1) and outer tube (2), between outer tube and the interior pipe vacuum layer (3), interior tube-surface coats one deck absorbing film (4), the vacuum tube opening part is provided with sealing gasket (5), be provided with a metallic support (6) between interior pipe bottom and the outer tube, pipe does not tilt in the middle of outer tube in being used to ensure, sealing gasket is the round rubber pad, have two holes (7) on the pad, hot-water line (8) and cold water pipe (9) pass hole and place in the vacuum tube chamber, rely on sealing gasket to fix, and interior tube-surface coats one deck Al-N-C absorbing film.
Absorbing film adopt single target metal aluminium under argon gas and reacting gas nitrogen and acetylene atmosphere sputtering sedimentation to glass surface, aluminium atom in the absorbing film is reduced to film surface gradually by the rete bottom, and nitrogen and carbon atom are increased to the film surface parts by the rete bottom, form composite bed.
Thermal-collecting tube is formed concentric glass by the outer glass pipe of a diameter 57mm and the inner glass tube of a diameter 47mm, and the sealing-in of finding time forms; The inner glass tube of the outer glass pipe of an also available diameter 100mm and a diameter 90mm is formed concentric glass, and the sealing-in of finding time forms; Also can form concentric glass with the outer glass pipe of a diameter 120mm and the inner glass tube of a diameter 110mm, the sealing-in of finding time forms.
This glass heat-collecting vacuum tube can be two-tube or multitube parallel use and form solar water heater, also can use by single tube.
Fig. 2 is the solar water heater of a two-tube composition, and it is by two glass heat-collecting vacuum tubes and connect and form, and also comprises connector (10), valve (11) and heat-collecting tube tail seat (12).
Glass heat-collecting vacuum tube of the present utility model has thermal efficiency height, easily manufactured, and low cost and other advantages can be used for being assembled into solar water heater or solar heating equipment.
Claims (3)
1, a kind of glass heat-collecting vacuum tube, being the open type double layer vacuum tube that is made of interior pipe and outer tube, is vacuum layer between outer tube and the interior pipe, and interior tube-surface is coated with absorbing film, the vacuum tube opening part is provided with sealing gasket, it is characterized in that being provided with a metallic support between interior pipe bottom and outer tube; Sealing gasket is provided with two holes, and hot-water line and cold water pipe pass hole and place in the vacuum tube chamber; Interior tube-surface coats one deck AI-N-C absorbing film.
2, glass heat-collecting vacuum tube according to claim 1 it is characterized in that the aluminium atom in the absorbing film is reduced to film surface gradually by the rete bottom, and nitrogen and carbon atom is increased gradually to film surface by the rete bottom, form composite bed.
3, glass heat-collecting vacuum tube according to claim 1 is characterized in that thermal-collecting tube can two-tube or multitube parallel use composition solar water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94224429U CN2210361Y (en) | 1994-07-25 | 1994-07-25 | Glass vacuum heat collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94224429U CN2210361Y (en) | 1994-07-25 | 1994-07-25 | Glass vacuum heat collection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210361Y true CN2210361Y (en) | 1995-10-18 |
Family
ID=33837842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94224429U Expired - Fee Related CN2210361Y (en) | 1994-07-25 | 1994-07-25 | Glass vacuum heat collection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210361Y (en) |
-
1994
- 1994-07-25 CN CN94224429U patent/CN2210361Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |