CN2548085Y - Long-life, fuel-glass vacuum solar heat-collecting tube - Google Patents
Long-life, fuel-glass vacuum solar heat-collecting tube Download PDFInfo
- Publication number
- CN2548085Y CN2548085Y CN02235541U CN02235541U CN2548085Y CN 2548085 Y CN2548085 Y CN 2548085Y CN 02235541 U CN02235541 U CN 02235541U CN 02235541 U CN02235541 U CN 02235541U CN 2548085 Y CN2548085 Y CN 2548085Y
- Authority
- CN
- China
- Prior art keywords
- collecting tube
- life
- long
- thermal
- getter
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/40—Preventing corrosion; Protecting against dirt or contamination
- F24S40/46—Maintaining vacuum, e.g. by using getters
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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
The utility model relates to a long-life, full-glass vacuum solar heat-collecting tube which is characterized in that the utility model is provided with an evaporable getter and a non evaporable getter, which facilitates prolonging the service life of full-glass vacuum solar heat-collecting tube from 15 years to over 25 years.
Description
Technical field:
The utility model relates to a kind of more long-life complete glass vacuum sun thermal-collecting tube, is a kind of sunshine-thermoconverter spare, belongs to solar energy heat utilization field.
Background technology:
The research of complete glass vacuum sun thermal-collecting tube (hereinafter to be referred as thermal-collecting tube), exploitation and production progress have been widely used in and have obtained life hot water rapidly.Under the vacuum good state, thermal-collecting tube thermal-arrest ability depends primarily on solar selective absorbing coating in the pipe in pipe, and its life-span is then depended on the maintenance of vacuum.Obtain the long-life complete glass vacuum sun thermal-collecting tube, need carry out the strictness processing of degassing glass and metal clamps.When the thermal-collecting tube exhaust, carry out the vacuum bakeout exhaust air technique, the temperature and time of baking distributes and will optimize, and could make thermal-collecting tube after sealed-off, and good vacuum is arranged in the pipe, promptly very low air pressure, for example air pressure is not more than 5 * 10
-2Pa.Because glass is half unending venting source, solar selective absorbing coating also can discharge gas gradually, usually must in thermal-collecting tube, place barium-titanium or nickel-aluminium-nickel or gas that nitrating nickel-aluminium-evaporable air-absorbing agents such as nickel come heat absorbing glass and solar selective absorbing coating constantly to discharge, thereby prolong the thermal-collecting tube life-span.This getter is normally put and is welded on the metal carrier, after the thermal-collecting tube sealed-off, with high-frequency electrical energy getter is evapotranspired on the thermal-collecting tube internal glass surface, forms the minute surface that evapotranspires.Its structure as shown in Figure 1,1 is inner glass tube among the figure, the 2nd, cover glass tube, the 3rd, supporting member, the 4th, evaporable air-absorbing agent, the 5th, the solar selective absorbing coating on the inner glass tube outer surface, the 6th, the vacuum interlayer between cover glass tube and the inner glass tube.In the thermal-collecting tube storage and the course of work, glass surface and sun absorber coatings can constantly slowly release gas, form survival gas in the thermal-collecting tube, and the barium plated film after evapotranspiring, constantly absorb the survival gas in the thermal-collecting tube, shift with the years, the area of getter film can consume the oxide-film that forms barium gradually, the getter film area of minute surface reduces gradually, and the gas pressure intensity in the vacuum solar collector tubes also can raise gradually, cause vacuum poor, the hot property variation of while thermal-collecting tube, thermal-collecting tube just can not normally use, and the life-span of this thermal-collecting tube is generally about 15 years.
Technology contents:
Goal of the invention of the present utility model is in order to prolong the life-span of thermal-collecting tube, to make more long-life thermal-collecting tube.
More long-life thermal-collecting tube is to have evaporable and two kinds of getters of non-evaporable in vacuum interlayer.
Nonevaporable getter can adopt zirconium-vanadium-iron-aluminium or zirconium-aluminium getter etc. according to different needs.
The utility model has the advantages that can prolong the thermal-collecting tube life-span reached more than 25 years.
Description of drawings:
Fig. 1 is the structural representation with thermal-collecting tube of evaporable air-absorbing agent;
Fig. 2 is the structural representation of long-life thermal-collecting tube more.
The specific embodiment:
Fig. 2 provides an embodiment of the present utility model, 1 is inner glass tube among the figure, the 2nd, cover glass tube, the 3rd, supporting member, the 4th, evaporable air-absorbing agent, the 5th, the solar selective absorbing coating on the inner glass tube outer surface, the 6th, the vacuum interlayer between cover glass tube and the inner glass tube, the 7th, nonevaporable getter.The evaporable air-absorbing agent point is welded in the centre of supporting member, and the nonevaporable getter point is welded on the supporting member.Nonevaporable getter is activated when thermal-collecting tube carries out vacuum bakeout, and evaporable air-absorbing agent is evapotranspiring evaporable air-absorbing agent on the thermal-collecting tube internal glass surface with high-frequency electrical energy after the thermal-collecting tube sealed-off, forms the minute surface that evapotranspires.So just obtain a more long-life thermal-collecting tube.
Nonevaporable getter can be in vacuum interlayer arbitrary position.
Claims (4)
1, a kind of more long-life complete glass vacuum sun thermal-collecting tube, form by inner glass tube, cover glass tube, supporting member and getter, the outer surface of inner glass tube has solar selective absorbing coating, in, vacuum interlayer is arranged between the cover glass tube, it is characterized in that said getter is evaporable and two kinds of getters of non-evaporable.
2,, it is characterized in that said nonevaporable getter is zirconium-vanadium-iron-aluminium or zirconium-aluminium getter according to the said more long-life complete glass vacuum sun thermal-collecting tube of claim 1.
3,, it is characterized in that said nonevaporable getter point is welded on the supporting member according to the said more long-life complete glass vacuum sun thermal-collecting tube of claim 1.
4,, it is characterized in that said nonevaporable getter is the arbitrary position in vacuum interlayer according to the said more long-life complete glass vacuum sun thermal-collecting tube of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02235541U CN2548085Y (en) | 2002-05-24 | 2002-05-24 | Long-life, fuel-glass vacuum solar heat-collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02235541U CN2548085Y (en) | 2002-05-24 | 2002-05-24 | Long-life, fuel-glass vacuum solar heat-collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548085Y true CN2548085Y (en) | 2003-04-30 |
Family
ID=33710026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02235541U Expired - Fee Related CN2548085Y (en) | 2002-05-24 | 2002-05-24 | Long-life, fuel-glass vacuum solar heat-collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548085Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311223A (en) * | 2011-02-22 | 2012-01-11 | 天津沽上真空玻璃制造有限公司 | Vacuum glass of mixing evaporable and non-evaporable getters |
| CN102838269A (en) * | 2012-08-07 | 2012-12-26 | 湖北桑夏太阳能产业有限公司 | Preparation process for evacuated solar collector tube |
| EP2487433A4 (en) * | 2009-10-05 | 2015-04-15 | Abengoa Solar New Tech Sa | Method for producing a solar power receiving tube and resulting tube |
| CN106338149A (en) * | 2016-08-29 | 2017-01-18 | 江苏浴普太阳能有限公司 | Solar vacuum tube |
| CN107255369A (en) * | 2017-07-27 | 2017-10-17 | 南京诚远太阳能科技有限公司 | A kind of composite getter for metal direct connection solar energy vacuum tube |
-
2002
- 2002-05-24 CN CN02235541U patent/CN2548085Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2487433A4 (en) * | 2009-10-05 | 2015-04-15 | Abengoa Solar New Tech Sa | Method for producing a solar power receiving tube and resulting tube |
| CN102311223A (en) * | 2011-02-22 | 2012-01-11 | 天津沽上真空玻璃制造有限公司 | Vacuum glass of mixing evaporable and non-evaporable getters |
| CN102838269A (en) * | 2012-08-07 | 2012-12-26 | 湖北桑夏太阳能产业有限公司 | Preparation process for evacuated solar collector tube |
| CN102838269B (en) * | 2012-08-07 | 2015-03-11 | 湖北桑夏太阳能产业有限公司 | Preparation process for evacuated solar collector tube |
| CN106338149A (en) * | 2016-08-29 | 2017-01-18 | 江苏浴普太阳能有限公司 | Solar vacuum tube |
| CN107255369A (en) * | 2017-07-27 | 2017-10-17 | 南京诚远太阳能科技有限公司 | A kind of composite getter for metal direct connection solar energy vacuum tube |
| CN107255369B (en) * | 2017-07-27 | 2023-06-09 | 南京诚远太阳能科技有限公司 | Composite getter for metal straight-through solar vacuum tube |
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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 |