CN102569473A - Concentric-circle vacuum photo-thermal photoelectric conversion glass tube - Google Patents
Concentric-circle vacuum photo-thermal photoelectric conversion glass tube Download PDFInfo
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- CN102569473A CN102569473A CN2012100195053A CN201210019505A CN102569473A CN 102569473 A CN102569473 A CN 102569473A CN 2012100195053 A CN2012100195053 A CN 2012100195053A CN 201210019505 A CN201210019505 A CN 201210019505A CN 102569473 A CN102569473 A CN 102569473A
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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
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02E10/60—Thermal-PV hybrids
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Abstract
A concentric-circle vacuum photo-thermal photoelectric conversion glass tube comprises an outer glass tube, an inner glass tube, two layers of anti-reflection films, a photoelectric conversion layer, a photo-thermal conversion layer, a heat conduction layer, a sealing solder, a support, a getter and the like. The transparent photoelectric conversion layer in a vacuum chamber converts sunlight into electric energy. The photo-thermal conversion layer converts the sunlight transmitted through the photoelectric conversion layer into heat energy. The heat conduction layer rapidly transmits the heat. Therefore, photoelectric and photo-thermal comprehensive utilization can be completed. The getter is placed on a bottom of the glass tube. When the getter is heated, influence of the getter on the coating film can be reduced to be minimal. The sealing solder is finally sealed and is located on an edge of the vacuum glass. A normal of a sealing surface is parallel to an axis of a concentric circle tube and an electrode is guaranteed to be fixed completely. The structure of the glass tube of the invention is simple and reasonable. Production and manufacturing are easy. Cost is low. Photo-thermal and photoelectric conversion efficiency is high. The glass tube is easy to be widely used. The shape of the concentric-circle vacuum photo-thermal photoelectric conversion glass tube is similar with the shape of a common solar energy glass tube. During a transportation and storage process, various kinds of damages can be effectively avoided.
Description
Technical field
The present invention relates to the glass tube with vacuum that solar energy utilizes, the structure of the novel evacuated glass tube that especially a kind of novel solar energy optical-thermal fully utilizes.Belong to technical field of solar utilization technique.
Background technology
The vacuum glass pipe obtains global attention with it in field of solar energy utilization good heat insulation, heat-insulating property, just progressively replaces traditional lucite tube and double glazing tubing solar product in building trade.Through the research and development of decades, domestic and international research person is more and more.
It is low that present research to the solar energy thermal conversion mainly concentrates on photo-thermal conversion efficiency, and glass tube is subject on the problem of adverse circumstances destruction; Photocell can only carry out the photoelectricity conversion concerning the research of opto-electronic conversion, not only can not carry out the photo-thermal conversion using, and its photoelectric conversion efficiency receives the influence of high temperature big on the contrary, and cooling is an a great problem always.A kind of novel concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube that vacuum glass is combined with optoelectronic film of novelty design is realized the comprehensive utilization of photoelectricity and photo-thermal, utilizes solar energy fully, is the problem that people are devoted for years to solution always.
Summary of the invention
The object of the invention is exactly in order to address the above problem, and a kind of concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube is provided, and photo-thermal and opto-electronic conversion are combined, and the energy of sunlight is made full use of.
The objective of the invention is to realize like this; Concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube comprises the support of inside and outside glass tube and inside and outside glass pipe end setting and the vacuum chamber that sealing solder constitutes, and it is characterized in that; The inside and outside wall of said outer glass pipe is provided with anti-reflection film; Said inner glass tube places the outer wall in the said vacuum chamber to be provided with the photoelectricity conversion coating, and the photoelectricity conversion coating is provided with the telegraph circuit of outside output electric energy, is provided with photo-thermal conversion coating and heat-conducting layer on the inner glass tube inwall successively; The photo-thermal conversion coating is wrapped between inner glass tube and the heat-conducting layer by heat-conducting layer; Sunray is through outer glass pipe irradiation photoelectricity conversion coating and photo-thermal conversion coating, and the photoelectricity conversion coating converts sunlight into electric energy, and the photo-thermal conversion coating converts sunlight into heat energy.
Thin film photocell that described photoelectricity conversion coating is a transparent material or silion cell or compound battery adopt the technology of vacuum coating to be plated in the inner glass tube outer surface.
Described photo-thermal conversion coating is that photo-thermal conversion nickel chromium triangle thermal-arrest film perhaps plates the composite material of photo-thermal conversion efficiently formation on copper aluminum metal surface, and the photo-thermal conversion coating adopts the technology and the inner glass tube inner wall surface of vacuum layer plated film or glue bond to be combined into an integral body.
Described heat-conducting layer is metallic film or heat conduction elastic insulating material, is wrapped on the photo-thermal conversion coating.
Described inside and outside glass tube is the high thermal resistance soda-lime glass pipe that tempering or half tempered are handled, thickness of pipe wall 4mm.
Described vacuum layer thickness is 3 ~ 5mm.
Laser Welding or microwave weldering are adopted in the welding of described sealing solder.
The present invention combines photo-thermal and opto-electronic conversion; The energy of sunlight is made full use of; And a kind of new solution thinking is provided for the problem of the most scabrous temperature in the photovoltaic generation and intensity of illumination; When temperature and intensity of illumination are too high, can feed cooling water the heat of photronic absorption is taken away and stored, photocell cannot can use this part energy to continue to offer required equipment during normal power generation when low when temperature and intensity of illumination are crossed.
The glass tube with vacuum that inside and outside glass tube constitutes is the straight pipe of both ends open, shapes that are shaped as circle or other effective transmission heats of vacuum cavity, and effective vacuum layer of glass tube with vacuum does not have the support of supporter.Anti-reflection film is plated in the both sides of outer glass pipe wall, effectively modes such as sunlight refraction, projection is seen through glassy layer, and the reflection of light is dropped to the minimum of prior art level.One deck photoelectricity conversion coating is set in the vacuum layer of glass tube with vacuum, can be electric energy with conversion of solar energy.Adopt the technology of vacuum coating to be plated in the inner glass tube outer surface, material can be chosen the photocell of transparent materials such as thin film photocell, silion cell, compound battery, needs in the manufacturing process to guarantee that the photoelectricity conversion coating is positioned at vacuum chamber fully.After photocell sealed, its residing environment was vacuum state or nearly vacuum state, and photronic oxidation can reduce with broken ring greatly, improves its life-span.
The photo-thermal conversion coating adopts the technology of vacuum layer plated film or glue bond to combine to form an integral body with interior glass plate inner surface, and its outside is isolated by heat-conducting layer parcel and fluid media (medium); The photo-thermal conversion coating is that photo-thermal conversion nickel chromium triangle thermal-arrest film perhaps plates the composite material of photo-thermal conversion efficiently etc. in metal surfaces such as copper aluminium.Heat-conducting layer adopts layer coating process and photo-thermal conversion coating to combine closely, and heat-conducting layer is metallic film or heat conduction elastic insulating material, chooses according to fluid media (medium).
Sunray is through outer glass pipe irradiation photoelectricity conversion coating and photo-thermal conversion coating, and the photoelectricity conversion coating converts sunlight into electric energy, and the photo-thermal conversion coating converts sunlight into heat energy.The electric energy that produces can centralized and unified power supply also can provide for the normal use of this equipment energy (as the tube fluid medium locate from low to high flow etc.), reduce the demand of system like this to electric energy, really accomplish energy-conserving and environment-protective.Medium fluid in the straight pipe can be in liquid, gas, solidliquid mixture, gas-liquid mixture, the gas-liquid-solid mixture one or more, can select according to the difference of transmitting the heat efficiency and area surroundings.The tube fluid medium is taken away the heat of photronic absorption and store and supplies to use.Photocell cannot can use this part energy to continue to offer required equipment during normal power generation when low when temperature and intensity of illumination are crossed.
The present invention is rational in infrastructure simple, manufactures easily, and cost is low.Through the design of integral body, make the photoelectricity conversion coating can directly be plated in the outside of glass tube with vacuum inner glass tube, anti-reflection film is plated in the two-layer of outer glass pipe, through using after the direct encapsulation, thereby has reduced relative production cost.Can realize the comprehensive utilization of photoelectricity and photo-thermal through incorporate design, improve the utilization ratio of solar energy, accordingly the further cost of Application of Solar Energy.Concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube and common product appearance similar can directly be changed the back and use, and accelerate promotion rate.Compare general energy photovoltaic device, the present invention can produce electric energy more efficiently, effectively avoids the too high influence to photoelectric conversion efficiency of temperature, and the influence that brings for photo-translating system solution high temperature provides a kind of new thinking.Adopt tempering or half tempered glass, be coated with the protection of photo-thermal conversion coating and heat-conducting layer in the pipe, reduced requirement tube fluid.
Description of drawings
Fig. 1 is a longitudinal plane structure sketch map of the present invention.
Fig. 2 is a cross-sectional configuration sketch map of the present invention.
Among the figure: 1 anti-reflection film, 2 outer glass pipes, 3 anti-reflection films, 4 bracing frames, 5 scolders, 6 inner glass tubes, 7 electrodes; 8 photoelectricity conversion coatings, 9 photo-thermal conversion coatings, 10 heat-conducting layers, 11 fluid media (medium) pipelines, 12 getters, 13 vacuum chambers.
Embodiment
Concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube is by comprising outer glass pipe 1, inner glass tube 6, two-layer anti-reflection film 1 and 3, photoelectricity conversion coating 8, photo-thermal conversion coating 9, heat-conducting layer 10, sealing scolder 5, bracing frame 4, getter 12 etc. and constitute.Sunray is through outer glass pipe irradiation photoelectricity conversion coating and photo-thermal conversion coating, and the photoelectricity conversion coating converts sunlight into electric energy, and the photo-thermal conversion coating converts sunlight into heat energy.
Inside and outside glass tube is the high thermal resistance soda-lime glass pipe that tempering or half tempered are handled, thickness of pipe wall 4mm.Glass tube 2 and 6 usefulness deionized waters are cleaned completely place dryer to dry, note to run into all contaminations during this.Plate anti-reflection film 1 and 3 Deng after the dry completion of glass tube simultaneously in the inside and outside both sides of outer glass pipe, whether the integrality and the fastness of check film be up to standard.Back up to standard is at the outer surface light-plated electricity conversion coating 8 of inner glass tube, and the photoelectricity conversion coating is transparent, checks the integrality and the fastness of film equally.The connection electrode 7 of welding photoelectricity conversion coating 8.Ring-type getter 12 is positioned over glass tube bottom back smears sealing solder 5 and fixing at the sealing part of glass tube with bracing frame 4 with special-purpose glue-injection machine, after sealing solder carries out welded seal with glass laser after solidifying, heated getter agent manufacturing vacuum chamber.Vacuum layer (chamber) thickness is 3 ~ 5mm.
Establish photo-thermal conversion coating and heat-conducting layer on the inner glass tube inwall successively; The photo-thermal conversion coating is wrapped between inner glass tube and the heat-conducting layer by heat-conducting layer; The photo-thermal conversion coating is that photo-thermal conversion nickel chromium triangle thermal-arrest film perhaps plates the composite material of photo-thermal conversion efficiently formation on copper aluminum metal surface, and the photo-thermal conversion coating adopts the technology and the inner glass tube inner wall surface of vacuum layer plated film or glue bond to be combined into an integral body.Heat-conducting layer is metallic film or heat conduction elastic insulating material, is wrapped on the photo-thermal conversion coating.Heat-conducting layer adopts layer coating process and photo-thermal conversion coating to combine closely, and heat-conducting layer is metallic film or heat conduction elastic insulating material, chooses according to fluid media (medium).
Transparent photoelectric conversion coating 8 converts sunlight into electric energy in the vacuum chamber 13, and photo-thermal conversion coating 9 converts the sunlight that photoelectricity conversion coating 8 sees through into heat energy, and heat-conducting layer 10 passes heat rapidly, accomplishes the comprehensive utilization of photoelectricity and photo-thermal.Getter 12 places the glass tube bottom, and getter reduces to minimum to the influence of plated film when being heated.Seal scolder again final encapsulation be positioned at the edge of vacuum glass, seal the parallel axes of face normal and concentric pipe, and guarantee electrode is completely fixed.
When the radiation of concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube through light, the photoelectricity conversion coating is an electric energy with transform light energy, and electric energy is deposited subsequent use or directly outwards power supply in the battery through the electrode that is embedded in the sealing solder, realizes the conversion and the utilization of photoelectricity.The photo-thermal conversion coating converts the sunlight that the photoelectricity conversion coating sees through into heat energy, and heat-conducting layer passes the heat that the photo-thermal conversion coating transforms through the tube fluid medium, thereby realizes the photo-thermal opto-electronic conversion.Such design can not only realize the rapid conversion and the transmission of photo-thermal, more can effectively reduce the temperature of photoelectricity conversion coating, improves the efficient of opto-electronic conversion.
Claims (7)
1. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube; Comprise the support of inside and outside glass tube and inside and outside glass pipe end setting and the vacuum chamber that sealing solder constitutes; It is characterized in that the inside and outside wall of said outer glass pipe is provided with anti-reflection film, the outer wall of said inner glass tube is provided with the photoelectricity conversion coating; The photoelectricity conversion coating is welded with the telegraph circuit of outside output electric energy; Be provided with photo-thermal conversion coating and heat-conducting layer on the inner glass tube inwall successively, the photo-thermal conversion coating is wrapped between inner glass tube and the heat-conducting layer by heat-conducting layer, and sunray is through outer glass pipe irradiation photoelectricity conversion coating and photo-thermal conversion coating; The photoelectricity conversion coating converts sunlight into electric energy, and the photo-thermal conversion coating converts sunlight into heat energy.
2. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1; It is characterized in that; Thin film photocell that described photoelectricity conversion coating is a transparent material or silion cell or compound battery adopt the technology of vacuum coating to be plated in the inner glass tube outer surface.
3. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1; It is characterized in that; Described photo-thermal conversion coating is that photo-thermal conversion nickel chromium triangle thermal-arrest film perhaps plates the composite material of photo-thermal conversion efficiently formation on copper aluminum metal surface, and the photo-thermal conversion coating adopts the technology and the inner glass tube inwall of vacuum layer plated film or glue bond
Surface combination becomes an integral body.
4. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1 is characterized in that described heat-conducting layer is metallic film or heat conduction elastic insulating material, is wrapped on the photo-thermal conversion coating.
5. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1 is characterized in that, described inside and outside glass tube is the high thermal resistance soda-lime glass pipe that tempering or half tempered are handled, thickness of pipe wall 4mm.
6. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1 is characterized in that described vacuum layer thickness is 3 ~ 5mm.
7. concentric-ring pattern vacuum photo-thermal opto-electronic conversion glass tube according to claim 1 is characterized in that, describedly is welded as the welding of laser welding or microwave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100195053A CN102569473A (en) | 2012-01-21 | 2012-01-21 | Concentric-circle vacuum photo-thermal photoelectric conversion glass tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100195053A CN102569473A (en) | 2012-01-21 | 2012-01-21 | Concentric-circle vacuum photo-thermal photoelectric conversion glass tube |
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| CN102569473A true CN102569473A (en) | 2012-07-11 |
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| CN2012100195053A Pending CN102569473A (en) | 2012-01-21 | 2012-01-21 | Concentric-circle vacuum photo-thermal photoelectric conversion glass tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050554A (en) * | 2012-12-07 | 2013-04-17 | 上海交通大学 | Solar heat collection and power generation integral film and power generation and heat collection water heater comprising same |
| CN104158487A (en) * | 2014-08-01 | 2014-11-19 | 苏州瑞晟纳米科技有限公司 | Integrated photoelectric/photo-thermal device |
| CN107453708A (en) * | 2017-09-18 | 2017-12-08 | 北京丰联奥睿科技有限公司 | Photovoltaic and photothermal integral solar vacuum tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0552428A (en) * | 1991-08-21 | 1993-03-02 | Shiroki Corp | Vacuum double heat-collecting tube in solar water heater |
| CN1536290A (en) * | 2003-04-10 | 2004-10-13 | 江希年 | Solar optothermal photoelectric composite tube |
| CN1928457A (en) * | 2005-09-05 | 2007-03-14 | 徐宝安 | Solar vacuum energy exchange thermal-collecting 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 |
| CN101788198A (en) * | 2010-03-10 | 2010-07-28 | 吴艳频 | Full-glass dual-channel vacuum tube heat collector |
| CN202454567U (en) * | 2012-01-21 | 2012-09-26 | 扬州大学 | Concentric vacuum light heat and light electricity conversion glass tube |
-
2012
- 2012-01-21 CN CN2012100195053A patent/CN102569473A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0552428A (en) * | 1991-08-21 | 1993-03-02 | Shiroki Corp | Vacuum double heat-collecting tube in solar water heater |
| CN1536290A (en) * | 2003-04-10 | 2004-10-13 | 江希年 | Solar optothermal photoelectric composite tube |
| CN1928457A (en) * | 2005-09-05 | 2007-03-14 | 徐宝安 | Solar vacuum energy exchange thermal-collecting 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 |
| CN101788198A (en) * | 2010-03-10 | 2010-07-28 | 吴艳频 | Full-glass dual-channel vacuum tube heat collector |
| CN202454567U (en) * | 2012-01-21 | 2012-09-26 | 扬州大学 | Concentric vacuum light heat and light electricity conversion glass tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050554A (en) * | 2012-12-07 | 2013-04-17 | 上海交通大学 | Solar heat collection and power generation integral film and power generation and heat collection water heater comprising same |
| CN103050554B (en) * | 2012-12-07 | 2015-04-01 | 上海交通大学 | Solar heat collection and power generation integral film and power generation and heat collection water heater comprising same |
| CN104158487A (en) * | 2014-08-01 | 2014-11-19 | 苏州瑞晟纳米科技有限公司 | Integrated photoelectric/photo-thermal device |
| CN107453708A (en) * | 2017-09-18 | 2017-12-08 | 北京丰联奥睿科技有限公司 | Photovoltaic and photothermal integral solar vacuum tube |
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Application publication date: 20120711 |