CN101650091A - Vacuum collector tube and manufacturing method thereof - Google Patents
Vacuum collector tube and manufacturing method thereof Download PDFInfo
- Publication number
- CN101650091A CN101650091A CN200910018161A CN200910018161A CN101650091A CN 101650091 A CN101650091 A CN 101650091A CN 200910018161 A CN200910018161 A CN 200910018161A CN 200910018161 A CN200910018161 A CN 200910018161A CN 101650091 A CN101650091 A CN 101650091A
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- China
- Prior art keywords
- inner tube
- glass inner
- metal
- rete
- layer
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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
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
- F24S70/25—Coatings made of metallic material
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention provides a vacuum collector tube and a manufacturing method thereof, and the method comprises the following steps: after the manufacturing of a glass inner tube is completed, when preparing a film on the outer surface of the glass inner tube, firstly selecting the aluminium foil or the copper foil as a metal substrate; utilizing the sputtering process to form an aluminium nitrogen compound absorbing layer or utilizing the electroplating process to form a chromium plating absorbing layer on one side of the metal substrate; utilizing the polishing process to polish the surface of the metal substrate to form a reflecting layer on the other side of the metal substrate; clipping the film, and then coating the prepared film on the outer surface of the glass inner tube and utilizingthe heat-conducting transparent organic adhesive to adhere the prepared film on the outer surface of the glass inner tube seamlessly; carrying out tight closeness and butt joint on the edge; and finally forming the interval space between the glass inner tube and the glass outer tube into vacuum and sealing the connector. The heat absorption capacity of the vacuum collector tube is higher, and canreach 96% to 98%; the film is not easy to fall off; the service life is long; the color consistency is good; and the operation is simple and the manufacturing cost is low by adopting the method.
Description
Technical field
The present invention relates to technical field of solar water heaters, specifically is the vacuum heat collection pipe and the manufacture method thereof of a kind of rete difficult drop-off, appearance color unanimity.
Background technology
The important form of solar energy utilization is a solar thermal utilization, and vacuum heat collection pipe is the critical component of solar water heater and heat collector, and the heat absorption capacity of its absorbed layer and efficiency of utilization have bigger influence to the performance of solar water heater.
The heat-sink shell of present conventional vacuum tube is aluminium-nitrogen/aluminized coating or stainless steel-carbon/copper coating on inner layer glass tube outer wall magnetron sputtering generally, and the absorptivity of this technology is generally about 86%, and is the highest about 92%.This kind technology is very high to the cleanliness factor requirement of glass tube in addition, as long as just exist point-like spot, oil stain to cause the small size demoulding easily.Easy occurrence of large-area comes off in the long use of the vacuum tube of demoulding, thereby has lost the function of heat absorption.Traditional vacuum tube carries out plated film by the monomer coating machine simultaneously, is subjected to the influence of voltage, electric current, gas pulsation, and the color distinction of every vacuum tube is bigger.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of vacuum heat collection pipe and manufacture method thereof, avoided coming off of vacuum heat collection pipe rete, keep the appearance color unanimity.
For addressing the above problem, the present invention is by the following technical solutions: this vacuum heat-collecting pipe manufacturing method, after glass inner tube completes, when the glass inner tube outer surface prepares rete, at first select by aluminium foil or Copper Foil as metal-based layer, utilize sputtering technology formation aluminium nitrogen compound absorbed layer or form the chromium plating absorbed layer in the one side of this metal-based layer, polish technology in the another side utilization of this metal-based layer this surface grinding of metal-based layer is formed reflecting layer by electroplating technology; Rete is carried out cutting; Then the rete for preparing is coated on and utilizes on the seamless outer surface that is bonded in glass inner tube of the transparent organic bond of heat conduction, and the airtight butt joint in edge; At last with the formation vacuum of the clearance space between the glass inner and outer pipe and with the interface sealing-in.
As the further technical scheme of this method, after described rete coated and is bonded in the outer surface of glass inner tube, the edge adopted welding/bonding/riveted joint closed butt joint.
Further: described metal-based layer thickness is 0.01～0.3mm.
Described organic bond selects to use anti-400 ℃ of high temperature and light transmittance to reach 99% organic bond.
Vacuum heat collection pipe of the present invention, comprise glass outer tube, glass inner tube and be arranged on the rete of glass inner tube outer surface, described rete comprises the chromium plating absorbed layer that the metal-based layer that adopts aluminium foil or Copper Foil to be made, the aluminium nitrogen compound absorbed layer that adopts sputtering technology formation or electroplating technology form, and described aluminium nitrogen compound absorbed layer/chromium plating absorbed layer is arranged on the front of metal-based layer; Also comprise the reflecting layer that utilizes polishing technology that the polishing of the metal-based layer back side is formed; Transparent organic bond layer by heat conduction between the outer surface of described rete and glass inner tube is seamless bonding.
As further technical scheme: described rete edge adopts welding/bonding/riveted joint closed butt joint.
Further: described metal-based layer thickness is 0.01～0.3mm.
The invention has the beneficial effects as follows:
1, aluminium foil/Copper Foil is as metal-based layer, and very strong adhesive force is arranged between the absorbed layer, difficult drop-off, and utilize organic bond with the rete strong bond on glass inner tube, therefore can not produce demoulding and large tracts of land rete peeling phenomenon;
2, adopt aluminium foil/Copper Foil as metal-based layer, attached on aluminium foil/Copper Foil, the color distinction after whole like this vacuum heat collection pipe preparation is finished is very little, basically identical with absorbed layer;
3, since metal-based layer and absorbed layer so to be all its photo-thermal conversion performance of metallics higher;
4, the organic bond of heat conduction can prevent to produce space and then the transmission of influence heat because of metal, glass expanded by heating coefficient difference between rete and the inner glass tube;
5, the organic bond of Cai Yonging has the performance of efficient transferring heat energy, guarantees the Heat-collecting effect of vacuum heat collection pipe.
In a word, the heat absorption capacity of this vacuum heat collection pipe is higher, can reach 96%-98%, and rete is not easy to come off, long service life, and colour consistency is good, and adopts this method simple to operate and cost of manufacture is also low.
Description of drawings
The present invention is described further below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of vacuum heat collection pipe embodiment among the present invention;
Fig. 2 is the cross sectional representation of vacuum heat collection pipe embodiment among the present invention;
Fig. 3 is the local structure for amplifying schematic diagram of the rete of vacuum heat collection pipe embodiment among the present invention;
Among the figure: 1 glass outer tube, 2 glass inner tube, 3 retes, 31 metal-based layers, 32 absorbed layers, 33 reflecting layer, 4 organic bond layers, 5 stainless steel stents.
The specific embodiment
This vacuum heat-collecting pipe manufacturing method: after glass inner tube completes, when the glass inner tube outer surface prepares rete, at first select aluminium foil or Copper Foil as metal-based layer, metal-based layer thickness is 0.01～0.3mm.Utilize sputtering technology formation aluminium nitrogen compound absorbed layer or form the chromium plating absorbed layer in the one side of this metal-based layer, polish technology in the another side utilization of this metal-based layer this surface grinding of metal-based layer is formed reflecting layer by electroplating technology.
Rete is cut out, then the rete for preparing is utilized the transparent organic bond coating of heat conduction to be bonded on the outer surface of glass inner tube, make between rete and the glass inner tube seamless.Described organic bond can select to use anti-400 ℃ of high temperature and light transmittance to reach 99% organic bond.
After rete coated and is bonded in the outer surface of glass inner tube, the rete edge adopted welding/bonding/riveted joint closed butt joint.
At last with the formation vacuum of the clearance space between the glass inner and outer pipe and with the interface sealing-in.
As shown in Figure 1 and Figure 2, this vacuum heat collection pipe comprises stainless steel stent 5, glass outer tube 1, glass inner tube 2 and is arranged on the rete 3 of glass inner tube outer surface.
As shown in Figure 3, this rete 3 comprises metal-based layer 31, absorbed layer 32, the reflecting layer 33 of adopting aluminium foil or Copper Foil to be made.Metal-based layer thickness is 0.01～0.3mm.
Absorbed layer 32 can be the aluminium nitrogen compound absorbed layer that adopts sputtering technology to form, and also can be the chromium plating absorbed layer that electroplating technology forms, on the front attached to metal-based layer.
As shown in Figure 3, utilize polishing technology that the back side polishing of metal-based layer is directly formed reflecting layer 33.
As shown in Figure 2, the transparent organic bond layer 4 by heat conduction is seamless bonding between the outer surface of described rete 3 and glass inner tube 2.Rete 3 edges adopt welding/bonding/riveted joint closed butt joint.
Claims (7)
1, a kind of vacuum heat-collecting pipe manufacturing method, it is characterized in that: after glass inner tube completes, when the glass inner tube outer surface prepares rete, at first select by aluminium foil or Copper Foil as metal-based layer, utilize sputtering technology formation aluminium nitrogen compound absorbed layer or form the chromium plating absorbed layer in the one side of this metal-based layer, polish technology in the another side utilization of this metal-based layer this surface grinding of metal-based layer is formed reflecting layer by electroplating technology; Rete is carried out cutting; Then the rete for preparing is coated on and utilizes on the seamless outer surface that is bonded in glass inner tube of the transparent organic bond of heat conduction, and the airtight butt joint in edge; At last with the formation vacuum of the clearance space between the glass inner and outer pipe and with the interface sealing-in.
2, a kind of vacuum heat-collecting pipe manufacturing method according to claim 1 is characterized in that: after described rete coated and is bonded in the outer surface of glass inner tube, the edge adopted welding/bonding/riveted joint closed butt joint.
3, a kind of vacuum heat-collecting pipe manufacturing method according to claim 1 and 2, it is characterized in that: described metal-based layer thickness is 0.01～0.3mm.
4, a kind of vacuum heat-collecting pipe manufacturing method according to claim 3 is characterized in that: described organic bond selects to use anti-400 ℃ of high temperature and light transmittance to reach 99% organic bond.
5, a kind of vacuum heat collection pipe, comprise glass outer tube, glass inner tube and be arranged on the rete of glass inner tube outer surface, it is characterized in that: described rete comprises the chromium plating absorbed layer that the metal-based layer that adopts aluminium foil or Copper Foil to be made, the aluminium nitrogen compound absorbed layer that adopts sputtering technology formation or electroplating technology form, and described aluminium nitrogen compound absorbed layer/chromium plating absorbed layer is arranged on the front of metal-based layer; Also comprise the reflecting layer that utilizes polishing technology that the polishing of the metal-based layer back side is formed; Transparent organic bond layer by heat conduction between the outer surface of described rete and glass inner tube is seamless bonding.
6, a kind of vacuum heat collection pipe according to claim 5 is characterized in that: described rete edge adopts welding/bonding/riveted joint closed butt joint.
7, according to claim 5 or 6 described a kind of vacuum heat collection pipes, it is characterized in that: described metal-based layer thickness is 0.01～0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100181612A CN101650091B (en) | 2009-09-08 | 2009-09-08 | Vacuum collector tube and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100181612A CN101650091B (en) | 2009-09-08 | 2009-09-08 | Vacuum collector tube and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101650091A true CN101650091A (en) | 2010-02-17 |
| CN101650091B CN101650091B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100181612A Expired - Fee Related CN101650091B (en) | 2009-09-08 | 2009-09-08 | Vacuum collector tube and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515313A (en) * | 2013-09-29 | 2015-04-15 | 宁夏银晨太阳能科技有限公司 | Vacuum glass heat collection pipe for solar water heater and production technology thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108749A (en) * | 1994-11-03 | 1995-09-20 | 辽宁省环境保护科学研究所 | Sputter selective-absorption coating for solar vacuum thermal arrest tube |
| CN2474960Y (en) * | 2001-05-10 | 2002-01-30 | 战余英 | Vacuum glass solar energy heat collecting tube |
| CN2867214Y (en) * | 2005-09-30 | 2007-02-07 | 山东力诺新材料有限公司 | Three targets film-coating type full-glass vacuum solar thermal-arrest tube |
| CN101093115A (en) * | 2007-07-06 | 2007-12-26 | 深圳市拓日新能源科技股份有限公司 | Nickel-chromium heat collection film for conversion of light and heat of solar energy |
| CN201285171Y (en) * | 2008-08-19 | 2009-08-05 | 高复立 | Whole glass vacuum solar heat collecting pipe |
-
2009
- 2009-09-08 CN CN2009100181612A patent/CN101650091B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515313A (en) * | 2013-09-29 | 2015-04-15 | 宁夏银晨太阳能科技有限公司 | Vacuum glass heat collection pipe for solar water heater and production technology thereof |
| CN104515313B (en) * | 2013-09-29 | 2016-05-11 | 宁夏银晨太阳能科技有限公司 | A kind of solar water heater vacuum glass heat collection tube and preparation technology thereof |
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| Publication number | Publication date |
|---|---|
| CN101650091B (en) | 2010-12-29 |
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Application publication date: 20100217 Assignee: Hunan Sanle Digital Solar Energy Co.,Ltd. Assignor: Shangdong Sangle Solar Energy Co., Ltd. Contract record no.: 2011430000159 Denomination of invention: Vacuum collector tube and manufacturing method thereof Granted publication date: 20101229 License type: Exclusive License Record date: 20110905 |
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