CN1936452A - Efficient double-glass vacuum heat-pipe solar heat-gathering pipe - Google Patents
Efficient double-glass vacuum heat-pipe solar heat-gathering pipe Download PDFInfo
- Publication number
- CN1936452A CN1936452A CNA2006100538804A CN200610053880A CN1936452A CN 1936452 A CN1936452 A CN 1936452A CN A2006100538804 A CNA2006100538804 A CN A2006100538804A CN 200610053880 A CN200610053880 A CN 200610053880A CN 1936452 A CN1936452 A CN 1936452A
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- CN
- China
- Prior art keywords
- pipe
- heat
- glass vacuum
- double
- solar
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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
This invention relates to a high efficient double glass vacuum hot tube solar energy heat-collector characterizing that a low radiation membrane of high penetration rate of solar radiation and low rate of long wave radiation is coated on the outside wall of the inner tube of a double glass vacuum tube, so that the sun can irradiate onto the heat tube and its metal heat-collecting rib plates directly via a glass to shorten the path of solar energy in the heat-collecting tube and reduce the long wave radiation in the inner tube of the vacuum tube and heat loss.
Description
Technical field
The present invention relates to a kind of utilization of solar energy, particularly a kind of high efficiency double-glass vacuum heat-pipe solar heat-gathering pipe.
Background technology
Cut down the consumption of energy and environmental protection be the hot issue of the current whole society, solar energy is a kind of energy of cleaning, the utilization of solar energy is more and more paid attention to by people.Vacuum heat-pipe solar heat-gathering pipe is the core component in the solar water heater, and its effect is to transmit solar thermal energy, and its performance quality directly influences the service efficiency of vacuum thermal-pipe solar energy water heater.Vacuum heat-pipe solar heat-gathering pipe mainly contains two types at present: single glass vacuum heat-pipe solar heat-gathering pipe and double-glass vacuum heat-pipe solar heat-gathering pipe.Single glass vacuum heat-pipe solar heat-gathering pipe be will have fin the heat pipe evaporator section sealing-in in individual layer glass tube with vacuum pipe because metal and the direct sealing-in of glass, technological requirement height, cost are also high; Double-glass vacuum heat-pipe solar heat-gathering pipe is that the evaporator section with the metal heat pipe directly is inserted in the interior pipe tube chamber of complete glass vacuum sun thermal-collecting tube, scribble the coating higher on the outer wall of interior pipe to the solar radiative absorption rate, because complete glass vacuum sun thermal-collecting tube is a kind of product of existing large-scale production, technology is simple, and cost is low.Therefore vacuum thermal-pipe solar energy water heater mostly adopts double-glass vacuum heat-pipe solar heat-gathering pipe at present.In the prior art, owing to scribble on the outer wall of pipe in the double-glass vacuum pipe to the high coating that absorbs of solar radiation, its heat-transfer path is: the hot glass tube → heat energy of sun lights reaches inner air tube layer → heat energy and reaches fin → heat pipe, and the heat transfer distance is long, and the solar energy utilization ratio is lower.
Summary of the invention
The object of the present invention is to provide a kind of efficient double-glass vacuum heat-pipe solar heat-gathering pipe, shorten the approach that solar energy transmits in this solar energy heat collection pipe, reduce the thermal-collecting tube thermal radiation loss, further improve the utilization ratio of solar energy.
A kind of efficient double-glass vacuum heat-pipe solar heat-gathering pipe, comprise double-glass vacuum pipe 1, end cap 2 is equipped with in the right part of double-glass vacuum pipe 1, metal heat pipe 3, the evaporator section 3a of metal heat pipe 3 is arranged in the cavity of pipe 1a in the double-glass vacuum pipe 1, its condensation segment 3b is positioned at the outside of end cap 2, the outside of evaporator section 3a is provided with one and is the collector metal fin 4 of one with evaporator section 3a weldering, scribble on this collector metal fin outer surface the high coating that absorbs of solar radiation, it is characterized in that: be coated with the solar transmittance height on the interior pipe 1a outer wall of double-glass vacuum pipe 1, low radiation (low-E) film that the long-wave radiation rate is lower; Its thickness of (low-E) film in being plated on the pipe 1a outer wall is 80～200nm.
With prior art relatively, advantage of the present invention is: be coated with low radiation (low-E) film higher and lower to the long-wave radiation rate to solar transmittance on the pipe 1a outer wall in the double-glass vacuum pipe 1, making solar radiation can see through glass shines directly on the collector metal fin of heat pipe and heat pipe, shorten the approach that solar energy transmits in this solar energy heat collection pipe, reduce the long-wave radiation of pipe, interior pipe tube chamber in the double-glass vacuum pipe simultaneously, reduce heat loss, improve solar thermal utilization efficient 10%.
Description of drawings
Fig. 1 is the structural representation of this efficient double-glass vacuum heat-pipe solar heat-gathering pipe.
Fig. 2 is the A-A profile of Fig. 1.
The specific embodiment
Embodiment 1:
A kind of efficient double-glass vacuum heat-pipe solar heat-gathering pipe, comprise double-glass vacuum pipe 1, end cap 2 is equipped with in the right part of double-glass vacuum pipe 1, metal heat pipe 3, the evaporator section 3a of metal heat pipe 3 is arranged in the cavity of pipe 1a in the double-glass vacuum pipe 1, its condensation segment 3b is positioned at the outside of end cap 2, the outside of evaporator section 3a is provided with one and is the cylindrical metal thermal-arrest fin 4 of one with evaporator section 3a weldering, scribble on this collector metal fin outer surface the high selective coating that absorbs of solar radiation, it is characterized in that: be coated with the solar transmittance height on the interior pipe 1a outer wall of double-glass vacuum pipe 1, and low low radiation (low-E) film of long-wave radiation rate; The thickness of (low-E) film in being plated on the pipe 1a outer wall is 80nm, and (low-E) material of film is for being the SnO of substrate with silver
3/ Ag/SnO
3Type coating.
Embodiment 2:
A kind of efficient double-glass vacuum heat-pipe solar heat-gathering pipe, comprise double-glass vacuum pipe 1, end cap 2 is equipped with in the right part of double-glass vacuum pipe 1, metal heat pipe 3, the evaporator section 3a of metal heat pipe 3 is arranged in the cavity of pipe 1a in the double-glass vacuum pipe 1, its condensation segment 3b is positioned at the outside of end cap 2, the outside of evaporator section 3a is provided with one and is the cylindrical metal thermal-arrest fin 4 of one with evaporator section 3a weldering, scribble on this collector metal fin outer surface the high selective coating that absorbs of solar radiation, it is characterized in that: be coated with the solar transmittance height on the interior pipe 1a outer wall of double-glass vacuum pipe 1, and low low radiation (low-E) film of long-wave radiation rate; The thickness of (low-E) film in being plated on the pipe 1a outer wall is 200nm, and (low-E) material of film is for being the SnO of substrate with silver
3/ Ag/SnO
3Type coating.
Claims (2)
1. efficient double-glass vacuum heat-pipe solar heat-gathering pipe, comprise double-glass vacuum pipe (1), end cap (2) is equipped with in the right part of double-glass vacuum pipe (1), metal heat pipe (3), the evaporator section (3a) of metal heat pipe (3) is arranged in the cavity of pipe (1a) in the double-glass vacuum pipe (1), its condensation segment (3b) is positioned at the outside of end cap (2), the outside of evaporator section (3a) is provided with one and is the collector metal fin (4) of one with evaporator section (3a) weldering, scribble coating on this collector metal fin outer surface, it is characterized in that: be coated with the solar transmittance height on interior pipe (1a) outer wall of double-glass vacuum pipe (1) the solar radiation high-absorbility, and low low radiation (low-E) film of long-wave radiation rate.
2. efficient double-glass vacuum heat-pipe solar heat-gathering pipe according to claim 1 is characterized in that: its thickness of low radiation (low-E) film that is plated on interior pipe (1a) outer wall is 80～200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100538804A CN1936452A (en) | 2006-10-19 | 2006-10-19 | Efficient double-glass vacuum heat-pipe solar heat-gathering pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100538804A CN1936452A (en) | 2006-10-19 | 2006-10-19 | Efficient double-glass vacuum heat-pipe solar heat-gathering pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1936452A true CN1936452A (en) | 2007-03-28 |
Family
ID=37954095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100538804A Pending CN1936452A (en) | 2006-10-19 | 2006-10-19 | Efficient double-glass vacuum heat-pipe solar heat-gathering pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1936452A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876493A (en) * | 2009-04-30 | 2010-11-03 | 北京智慧剑科技发展有限责任公司 | External quartz-array solar photo-thermal converter and method |
| CN102584034A (en) * | 2012-03-19 | 2012-07-18 | 山东力诺新材料有限公司 | Low emissivity film for solar high temperature collector tube and forming process for low emissivity film |
-
2006
- 2006-10-19 CN CNA2006100538804A patent/CN1936452A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876493A (en) * | 2009-04-30 | 2010-11-03 | 北京智慧剑科技发展有限责任公司 | External quartz-array solar photo-thermal converter and method |
| CN102584034A (en) * | 2012-03-19 | 2012-07-18 | 山东力诺新材料有限公司 | Low emissivity film for solar high temperature collector tube and forming process for low emissivity film |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |