CN101893330A - Solar vacuum tube collector - Google Patents
Solar vacuum tube collector Download PDFInfo
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- CN101893330A CN101893330A CN2010102538400A CN201010253840A CN101893330A CN 101893330 A CN101893330 A CN 101893330A CN 2010102538400 A CN2010102538400 A CN 2010102538400A CN 201010253840 A CN201010253840 A CN 201010253840A CN 101893330 A CN101893330 A CN 101893330A
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- vacuum tube
- tube
- fin
- solar
- vacuum
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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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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a solar vacuum tube collector, which comprises at least one vacuum tube. The vacuum tube is fixed by an external support structure; the inner wall of the vacuum tube is coated with a selective absorbing coating; and at least one horizontally/vertically arranged fin is arranged in the vacuum tube; U-shaped tubes filled with an intermediate medium pass through the fin to be arranged in the vacuum tube; two ends of the U-shaped tubes are arranged outside the vacuum tube; and end parts of two adjacent U-shaped tubes are mutually connected. The solar vacuum tube collector improves light-thermal conversion efficiency and reduces system cost.
Description
Technical field
The present invention relates to a kind of vacuum tube collector, relate in particular to a kind of solar energy vacuum tube heat collector.
Background technology
Solar water heater is most widely used general, an industrialized development solar product the most rapidly during China solar energy utilizes.
Closing-sunning type, flat and three developing stage of complete glass vacuum sun thermal-collecting tube formula have been experienced in the solar water heater development of China.
Closing-sunning type solar energy hot-water heat collector (mainly in the 70-80 age in 20th century): various forms is arranged, comprise that petrol drum formula, automotive oil are box, rubber pocket type etc.Characteristics such as the water-heater efficiency of this form is low, rapid heat dissipation, moisture storage capacity is little, can't use winter can't large tracts of land be promoted, and are not therefore greatly developed.Only market is arranged now, account for 1%～2% of whole shares in the good but comparatively poor area of western solar energy resources.
Flat solar water heater's (mainly in 80-90 age in 20th century): flat plat solar water heaters can not move winter, and night, heat dissipation capacity was bigger, withdraw from the market gradually, ground such as China's Delta of the Pearl River and Yunnan have the user to use at present, account for about 10% of whole market shares.
Complete glass vacuum sun thermal-collecting tube water heater (nineteen ninety so far): its core component is the complete glass vacuum sun thermal-collecting tube with coating for selective absorption, main feature is 1) coating of vacuum heat-insulation and low heat radiation, make vacuum heat collection pipe influenced by ambient temperature hardly, northern area all can use throughout the year; 2) cylindrical endotherm area plays the accurate tracer action of the sun, has improved whole day and has got heat; 3) envelope of melting of glass and glass makes bond strength height, firm, the long service life of structure.
Solar water heater can be divided into following a few class according to different criteria for classifications:
1) combination according to heat-collecting part and heat storage water tank is divided into close-coupled and separate type;
2) whether be communicated with (heat storage water tank whether pressure-bearing) according to heat storage water tank and be divided into pressure-bearing type and non-bearing type with atmosphere;
3) hot mode that gets according to hot water in the heat storage water tank is divided into direct-type and indirect type;
4) water-out manners according to hot water is divided into drowning formula, top ability of swimming and booster pump formula.
The complete glass vacuum sun thermal-collecting tube water heater of Xiao Shouing is the instructions for use that the combination of above-mentioned several modes reaches hot water in production, the life nothing more than in the market, rely on its core component---have the complete glass vacuum sun thermal-collecting tube of coating for selective absorption, by vacuum The Application of Technology between various up-to-date coating technologies, sleeve pipe, absorb photo-thermal to greatest extent from the sun; But, the transmission that can a large amount of heats that absorb from the sun very fast, be transported to working medium to be heated problem but few people pay close attention to.
Summary of the invention
Technical problem to be solved by this invention provides a kind of solar energy vacuum tube heat collector, improves the photo-thermal transformation efficiency, reduces system cost.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of solar energy vacuum tube heat collector, comprise at least one vacuum tube, described vacuum tube is fixed by the supporting construction of outside, scribble coating for selective absorption on the tube wall in vacuum tube, in vacuum tube, be provided with level/vertical fin of placing of a slice at least, the U-shaped pipe that is provided with middle heat transfer medium in the pipe passes fin and is located in the vacuum tube, the two ends of U-shaped pipe are located at outside the vacuum tube, and the end of two adjacent U-shaped pipes interconnects.
The present invention contrasts prior art following beneficial effect: solar energy vacuum tube heat collector provided by the invention, by on the U-shaped pipe, increasing the mode of fin, increased the exchange heat area of U type pipe and external high temperature environment, increase the heat that U type intraductal working medium absorbs, thereby improve the photo-thermal transformation efficiency, reduce system cost.
Description of drawings
Fig. 1 is the structural representation of solar energy vacuum tube heat collector of the present invention;
Fig. 2 is the local enlarged diagram of single vacuum tube among Fig. 1;
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of solar energy vacuum tube heat collector of the present invention; Fig. 2 is the local enlarged diagram of single vacuum tube among Fig. 3 A; Fig. 3 is the vertical view of Fig. 2.
See also Fig. 1,2 and 3, solar energy vacuum tube heat collector provided by the invention comprises at least one vacuum tube 8, supporting construction 11 by the outside is fixing, scribble coating for selective absorption on the tube wall in vacuum tube 8, its absorptivity α s 〉=95%, its conversion efficiency ε 〉=90%, in vacuum tube 8, be provided with level/vertical multi-disc fin of placing 9, not having the U-shaped pipe 10 of middle heat transfer medium to pass fin 9 in the pipe is located in the vacuum tube 8, the two ends of U-shaped pipe 10 are located at outside the vacuum tube 8, and the end of two adjacent U-shaped pipes 10 interconnects, and 12 vacuum tubes 8 just are arranged in series so as shown in Figure 1.
Many solar vacuum-tube water heat collectors can adopt the mode of series and parallel as requested, realize a solar vacuum-tube water heat collector hot-water heating system efficiently, need for the hot water of life, production.
In sum, the present invention has increased the exchange heat area of U type pipe and external high temperature environment by increase the mode of fin on the U-shaped pipe, increases the heat that U type intraductal working medium absorbs, and the efficient ratio is not with the common U-shaped Guan Yaogao of fin.Solar vacuum-tube water heat collector collecting efficiency height, η 〉=95%, technology maturation, cost is lower; Applied widely, will be more practical particularly in the abundant area of solar energy resources.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (1)
1. solar energy vacuum tube heat collector, comprise at least one vacuum tube (8), it is characterized in that, described vacuum tube (8) is fixing by outside supporting construction (11), scribble coating for selective absorption on the tube wall in vacuum tube (8), in vacuum tube (8), be provided with level/vertical fin of placing of a slice at least (9), the U-shaped pipe (10) that is provided with middle heat transfer medium in the pipe passes fin (9) and is located in the vacuum tube (8), the two ends of U-shaped pipe (10) are located at outside the vacuum tube (8), and the end of adjacent two U-shaped pipes (10) interconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102538400A CN101893330A (en) | 2010-08-16 | 2010-08-16 | Solar vacuum tube collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102538400A CN101893330A (en) | 2010-08-16 | 2010-08-16 | Solar vacuum tube collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101893330A true CN101893330A (en) | 2010-11-24 |
Family
ID=43102602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102538400A Pending CN101893330A (en) | 2010-08-16 | 2010-08-16 | Solar vacuum tube collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101893330A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3227153A (en) * | 1963-09-04 | 1966-01-04 | American Mach & Foundry | Solar collector |
| US4120285A (en) * | 1976-11-01 | 1978-10-17 | Owens-Illinois, Inc. | Modular tubular solar energy collector apparatus |
| CN2195766Y (en) * | 1994-03-09 | 1995-04-26 | 罗鸣 | Detachable metal tube-vacuum tube solar heat collecting device |
| CN2365597Y (en) * | 1998-09-04 | 2000-02-23 | 北京市太阳能研究所 | U-shape tube type solar vacuum thermal-arrest tube |
| CN1453524A (en) * | 2002-04-26 | 2003-11-05 | 罗桂荣 | Serially connected solar heat collector |
| CN2665618Y (en) * | 2003-10-30 | 2004-12-22 | 魏立东 | Solar energy heat conductive pipe |
-
2010
- 2010-08-16 CN CN2010102538400A patent/CN101893330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3227153A (en) * | 1963-09-04 | 1966-01-04 | American Mach & Foundry | Solar collector |
| US4120285A (en) * | 1976-11-01 | 1978-10-17 | Owens-Illinois, Inc. | Modular tubular solar energy collector apparatus |
| CN2195766Y (en) * | 1994-03-09 | 1995-04-26 | 罗鸣 | Detachable metal tube-vacuum tube solar heat collecting device |
| CN2365597Y (en) * | 1998-09-04 | 2000-02-23 | 北京市太阳能研究所 | U-shape tube type solar vacuum thermal-arrest tube |
| CN1453524A (en) * | 2002-04-26 | 2003-11-05 | 罗桂荣 | Serially connected solar heat collector |
| CN2665618Y (en) * | 2003-10-30 | 2004-12-22 | 魏立东 | Solar energy heat conductive pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |