CN1563846A - Two-way-through solar glass vacuum heat collection tubes - Google Patents
Two-way-through solar glass vacuum heat collection tubes Download PDFInfo
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- CN1563846A CN1563846A CNA2004100145793A CN200410014579A CN1563846A CN 1563846 A CN1563846 A CN 1563846A CN A2004100145793 A CNA2004100145793 A CN A2004100145793A CN 200410014579 A CN200410014579 A CN 200410014579A CN 1563846 A CN1563846 A CN 1563846A
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- metal
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- inner pipe
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
Vacuum cavity is formed between glass outer tube and metal inner through tube, which passes through out of glass outer tube. Solar selective heat absorption membrane is setup on outside metal tube. Concave condensing reflector is installed between glass outer tube and metal inner through tube. The invention increases effective day lighting area. Under identical diameter, even smaller, and same intensity of illumination, heat transfer medium inside metal tube obtains more heat energy and outputs higher temp. The invention is possible to apply to industrial drying, seawater desalination, air-conditioning and refrigeration.
Description
Technical field
The present invention relates to the transform light energy of the sun is the vacuum type glass heat collection tube technology of heat energy.
Background technology
Solar vacuum heat-collecting pipe is the core components and parts of solar thermal utilization.Metal two general formula vacuum tube of prior art design, comprise the glass outer tube, the coaxial logical metal inner pipe in two that is nested with in the glass outer tube, the both ends of the logical metal inner pipe in two pass the two ends of glass outer tube respectively, and between the logical metal inner pipe of glass outer tube and two, form vacuum chamber, the outer wall of logical metal inner pipe is provided with the solar selective heat-absorbing film at two, owing to be subjected to the restriction of the logical metal inner pipe body in two, can't accept or less receive external reflectance plate sunlight reflected at place backlight, the heat transfer medium programming rate in the vacuum tube is slow.Two general formula vacuum tube of dilated diameter, the water amount in the logical metal inner pipe in two is bigger, and effect is poorer.Because the water amount of thermal-collecting tube becomes negative correlativing relation with the rate of thermal water utilization of whole solar water heating system, must influence effective hot water use amount, the heat transfer medium in the vacuum tube also is difficult to the output temperature that reaches higher.
Summary of the invention
The object of the invention is to design and a kind ofly need not to increase the logical metal inner pipe diameter in two, and can realize novel two general formula solar glass vacuum heat collecting tube of bigger effective daylighting area.
The present invention includes glass outer tube, both ends and pass the logical metal inner pipe in two at glass outer tube two ends respectively, the vacuum chamber that between the logical metal inner pipe of glass outer tube and two, forms, the logical metal inner pipe in described two is provided with the solar selective heat-absorbing film outward, between the logical metal inner pipe of glass outer tube and two spill optically focused reflector is set, the glass outer tube is connected by the logical metal inner pipe in connector and two.
The present invention will enter the outer wall of sunlight convergence reflex in the glass outer tube logical metal inner pipe to two by spill optically focused reflector, increase effective daylighting area greatly.The present invention is logical metal inner pipe same diameter at two, even more under the condition of minor diameter and identical intensity of illumination, can make the heat transfer medium in the logical metal inner pipe in two obtain higher output temperature, so that further expand its usage range, such as applications such as industrially drying, desalinization, air conditioner refrigeratings at solar energy heat utilization field.
The logical metal inner pipe in two in the above-mentioned vacuum chamber can arranged off-centre in the glass outer tube.By the logical metal inner pipe in two of arranged off-centre, can strengthen the glass outer tube diameter.
Above-mentioned spill optically focused reflector can be the metallic reflective coating that is provided with on the glass outer tube wall part segmental arc, also can be the reflecting plate of concave arc for section, is arranged in the glass outer tube, and the cancave cambered surface of reflecting plate logical metal inner pipe towards two is the optically focused reflecting surface.
The present invention is positioned on the logical metal inner pipe in two of vacuum chamber and also connects metal fin, and this metal fin surface is provided with the solar selective heat-absorbing film.
It is heat energy that the present invention absorbs transform light energy by fin, and thermal energy conduction is led to metal inner pipe to two, by the heat transfer medium in the logical metal inner pipe in two to the heat storage box transmission, because fin can increase endotherm area, just can reduce the logical metal inner pipe diameter in two as far as possible, thereby change the logical big defective of metal inner pipe water amount in two in the past, not only be beneficial to the raising effective output rate of hot water, and the heat transfer medium output temperature in the thermal-collecting tube is further improved, thereby realize improving the purpose of the temperature of heat transfer medium in the heat storage box, be beneficial to the field that enlarges application.
For strengthening daylighting area, fin can be cylindrical shape, is connected by the logical metal inner pipe in its inboard dowel and two; It also can be the plane fin that is that is arranged in parallel on the length direction of the logical metal inner pipe in two; Can also be that the middle part is plane, have along the segmental arc of the interior circumferentially deploying of glass outer tube in the outer end on plane.
Because glass and expansion of metal difference of coefficients are bigger, directly sealing-in, for realizing being tightly connected between glass outer tube and the metal inner pipe, connector of the present invention comprises metal bellows and can cut down the expansion alloy ring, the end of glass outer tube connects can cut down the expansion alloy ring, the interior circle that can cut down the expansion alloy ring connects metal bellows, the other end of metal bellows is connected with the logical metal inner pipe in two, the axially parallel of the logical metal inner pipe in the flexible direction of metal bellows and two is in order to eliminate the thermal expansion stress between the logical metal inner pipe in glass outer tube and two; Can also and can cut down between the expansion alloy ring at metal bellows and connect metal end.
For realizing being tightly connected between glass outer tube and the metal inner pipe, connector of the present invention can also be for cutting down the expansion alloy ring, the logical metal inner pipe in two comprises at least two sections metal tubes and metal bellows, gang up connection by the wavy metal seal of tube between the adjacent metal pipe, the flexible direction of metal bellows and the axially parallel of metal tube are to eliminate the thermal expansion stress between glass outer tube and the metal inner pipe.Described metal fin is connected the metal tube outside, and the metal tube that is positioned at the vacuum chamber end is tightly connected respectively by the two ends that can cut down expansion alloy ring and glass outer tube.
For fully absorbing luminous energy, wavy metal tube outer surface of the present invention also is provided with the solar selective heat-absorbing film.
For preventing that fin from hindering freely extending, shrinking of bellows, when bellows was arranged on the interlude of the logical metal inner pipe in two, the metal fin section at the metal bellows place was provided with horizontal fracture and breach; When bellows was arranged on the end of the logical metal inner pipe in two, the metal fin section at the metal bellows place was provided with horizontal cut.
But of the present inventionly cut down expansion alloy ring overcoat and be sealedly connected on the metal tube, also can be serially connected on the metal tube, directly realize interconnecting of unlike material between logical metal inner pipe in two and glass outer tube by cutting down the expansion alloy ring, the glass outer tube of these two kinds of schemes has one section curved changeover portion, helps reducing the heat loss at both ends.
Also can connect metal end at the metal tube external seal, the excircle of metal end is tightly connected and can cuts down the inner periphery of expansion alloy ring, can cut down the excircle of expansion alloy ring and the end of glass outer tube and be tightly connected.This programme only needs the glass outer tube is made straight tubular, need not process inside segmental arc at both ends or connect one section segmental arc, is convenient to industrial production.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of sectional drawing of Fig. 1;
Fig. 3 is second kind of sectional drawing of Fig. 1;
Fig. 4 is the third sectional drawing of Fig. 1;
Fig. 5 is the 4th kind of sectional drawing of Fig. 1;
Fig. 6 is the 5th kind of sectional drawing of Fig. 1;
Fig. 7 is second kind of structural representation of the present invention;
Fig. 8 is the third structural representation of the present invention;
Fig. 9 is the 4th a kind of structural representation of the present invention;
Figure 10 is the 5th a kind of structural representation of the present invention.
Among the figure, 1 glass outer tube, 2 metal tubes, 3 vacuum chambers, 4 bellowss, 5 fins, 6 breach, 7 fractures, 8 can cut down expansion alloy ring, 9 metal ends, 10 spill optically focused reflectors, 11 dowels.
Among Fig. 1, the logical metal inner pipe in two is made of two sections metal tubes 2 and one section metal bellows 4, bellows 4 is arranged in the end in the vacuum chamber 3, its sealed at both ends ganging up between two metal tubes 2, connect plane fin 5 outside the metal tube 2 in vacuum chamber 3, fin 5 is offered breach 6 towards the inboard of bellows 4.The metal tube that is positioned at the end respectively is connected in series one section and can cuts down expansion alloy ring 8, two ends are circular-arc glass outer tube 1 and can cut down 8 welding of expansion alloy ring, vacuumize and form vacuum chamber 3, make eccentric and glass outer tube 1 layout of the logical metal inner pipe in two in vacuum chamber 3, by the segmental arc transition of bending, its two ends pass from the two ends of glass outer tube 1 respectively.
On the local segmental arc of glass outer tube 1, be provided with spill optically focused reflector 10, in the inner surface plating reflectance coating formation of glass outer tube 1, the outer surface of the outer surface of metal tube 2, bellows 4 and the surface of fin 5 are provided with the solar energy selective absorption film respectively to this spill optically focused reflector 10 by directly.
Among Fig. 2, a radial arrangement fin 5 of the metal tube 2 of relative spill optically focused reflector 10.Fin 5 is plane, is arranged in parallel on the length direction of the logical metal inner pipe in two.
Among Fig. 3, radially arrange fin 5 respectively two of metal tube 2.
Among Fig. 4, two fin 5 symmetries are connected outside the metal tube 2, and the inner of each fin 5 is plane, and the outer end has continuously along the segmental arc of the interior circumferentially deploying of glass outer tube 1.
Among Fig. 5, fin 5 is rounded cylindric of section, and the inboard dowel of making by Heat Conduction Material 11 is connected with metal tube 2.In this example, the outer surface of the outer surface of metal tube 2 and bellows 4 need not to be provided with the solar energy selective absorption film.
Among Fig. 6, spill optically focused reflector 10 is arranged in the glass outer tube 1 for section is the reflecting plate of concave arc, and reflecting plate is the optically focused reflecting surface towards the cancave cambered surface of metal tube 2, can also can realize by the form of plating reflectance coating by polishing.
Among Fig. 7, in vacuum chamber 3, establish two sections metal tubes 2, between two sections metal tubes 2, gang up connection, connect two groups of fins 5 respectively at every section metal tube 2 outer radials with bellows 4 sealings, two sections fins 5 are established breach 6 towards the inboard of bellows 4, and the fracture 7 that two relative fins 5 form can overlap mutually.
In this example, can cut down outside the outer metal tube 2 that is enclosed within the logical metal inner pipe in two of expansion alloy ring 8, and with metal tube 2 with welded seal, glass outer tube 1 is by scolder and the cylindrical seal welding that can cut down expansion alloy ring 8.
Among Fig. 8, on the metal tube 2 of logical two outer ends of metal inner pipe, two, respectively weld a circular arc metal end 9, at the other end of each metal end 9 by cutting down expansion alloy ring 8 and glass outer tube 1 seal welding.
Among Fig. 9, be connected by connector between the logical metal inner pipe in glass outer tube 1 and two, connector is by cutting down expansion alloy ring 8 and metal bellows 4 is formed.Can cut down expansion alloy ring 8 in the connection of the end of glass outer tube 1, the inner that can cut down expansion alloy ring 8 connects metal bellows 4, and the other end of metal bellows 4 is connected with metal tube 2, the axially parallel of the logical metal inner pipe in the flexible direction of metal bellows 4 and two.
Among Figure 10, at metal bellows 4 with can cut down between the expansion alloy ring 8 by metal end 9 and connect.
Claims (17)
1, a kind of two general formula solar glass vacuum heat collecting tube, comprise that glass outer tube, both ends pass the logical metal inner pipe in two at glass outer tube two ends respectively, the vacuum chamber that between the logical metal inner pipe of glass outer tube and two, forms, it is characterized in that: the logical metal inner pipe in described two is provided with the solar selective heat-absorbing film outward, between the logical metal inner pipe of glass outer tube and two spill optically focused reflector is set, the glass outer tube is connected by the logical metal inner pipe in connector and two.
2, two according to claim 1 general formula solar glass vacuum heat collecting tube is characterized in that the logical metal inner pipe arranged off-centre in two in vacuum chamber is in the glass outer tube.
3, two according to claim 1 general formula solar glass vacuum heat collecting tube is characterized in that spill optically focused reflector is the reflecting plate that section is concave arc, is arranged in the glass outer tube, and the cancave cambered surface of reflecting plate logical metal inner pipe towards two is the optically focused reflecting surface.
4, two according to claim 1 general formula solar glass vacuum heat collecting tube is characterized in that spill optically focused reflector is the metallic reflective coating that is provided with on the glass outer tube wall part segmental arc.
5, two according to claim 1 general formula solar glass vacuum heat collecting tube is characterized in that being positioned on the logical metal inner pipe in two of vacuum chamber and connects metal fin, and this metal fin surface is provided with the solar selective heat-absorbing film.
6, two according to claim 5 general formula solar glass vacuum heat collecting tube is characterized in that described metal fin is plane, is arranged in parallel on the length direction of the logical metal inner pipe in two.
7, two according to claim 5 general formula solar glass vacuum heat collecting tube is characterized in that the middle part of described metal fin is plane, has along the segmental arc of the interior circumferentially deploying of glass outer tube in the outer end on plane.
8, two according to claim 5 general formula solar glass vacuum heat collecting tube is characterized in that described metal fin is cylindrical, is connected by the logical metal inner pipe of its inboard dowel and two.
9, according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described two general formula solar glass vacuum heat collecting tubes, it is characterized in that described connector comprises metal bellows and can cut down the expansion alloy ring, the end of glass outer tube connects the cylindrical that can cut down the expansion alloy ring, the interior circle that can cut down the expansion alloy ring connects metal bellows, the other end of metal bellows is connected the axially parallel of the logical metal inner pipe in the flexible direction of metal bellows and two with the logical metal inner pipe in two.
10, two according to claim 9 general formula solar glass vacuum heat collecting tube is characterized in that at metal bellows and can cut down between the expansion alloy ring connecting metal end.
11, according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described two general formula solar glass vacuum heat collecting tubes, it is characterized in that described connector is for can cut down the expansion alloy ring, the logical metal inner pipe in two comprises at least two sections metal tubes and metal bellows, gang up connection by the wavy metal seal of tube between the adjacent metal pipe, the flexible direction of metal bellows and the axially parallel of metal tube, described metal fin is connected the metal tube outside, and the metal tube that is positioned at the vacuum chamber end is tightly connected respectively by the two ends that can cut down expansion alloy ring and glass outer tube.
12, two according to claim 11 general formula solar glass vacuum heat collecting tube is characterized in that the wavy metal tube outer surface is provided with the solar selective heat-absorbing film.
13, two according to claim 11 general formula solar glass vacuum heat collecting tube is characterized in that in the metal fin section at metal bellows place horizontal fracture being set.
14, two according to claim 11 general formula solar glass vacuum heat collecting tube is characterized in that in the metal fin section at metal bellows place breach being set.
15, two according to claim 11 general formula solar glass vacuum heat collecting tube is characterized in that can cutting down expansion alloy ring overcoat and being sealedly connected on the metal tube.
16, two according to claim 11 general formula solar glass vacuum heat collecting tube is characterized in that cutting down the expansion alloy ring and is serially connected on the metal tube.
17, two according to claim 11 general formula solar glass vacuum heat collecting tube, the metal tube that it is characterized in that being positioned at the vacuum chamber end metal end that is tightly connected, the excircle of metal end is tightly connected by the end that can cut down expansion alloy ring and glass outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100145793A CN1563846A (en) | 2004-04-07 | 2004-04-07 | Two-way-through solar glass vacuum heat collection tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100145793A CN1563846A (en) | 2004-04-07 | 2004-04-07 | Two-way-through solar glass vacuum heat collection tubes |
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| Publication Number | Publication Date |
|---|---|
| CN1563846A true CN1563846A (en) | 2005-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100145793A Pending CN1563846A (en) | 2004-04-07 | 2004-04-07 | Two-way-through solar glass vacuum heat collection tubes |
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| Country | Link |
|---|---|
| CN (1) | CN1563846A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039706A1 (en) * | 2007-09-25 | 2009-04-02 | Shenzhen Greenpower Solar Science & Technology Ltd. | An internal light-focusing glass vacuum solar heat-collecting pipe |
| CN103162431A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type high-efficiency solar thermal collector |
| CN103162436A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type vacuum heat-insulated solar thermal collector |
| CN107270553A (en) * | 2017-04-27 | 2017-10-20 | 赤水市天云能源有限公司 | Solar thermal collector |
| CN109618913A (en) * | 2018-12-29 | 2019-04-16 | 宁波微萌种业有限公司 | A kind of wall bee pollinating device |
-
2004
- 2004-04-07 CN CNA2004100145793A patent/CN1563846A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039706A1 (en) * | 2007-09-25 | 2009-04-02 | Shenzhen Greenpower Solar Science & Technology Ltd. | An internal light-focusing glass vacuum solar heat-collecting pipe |
| CN103162431A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type high-efficiency solar thermal collector |
| CN103162436A (en) * | 2013-03-30 | 2013-06-19 | 贵州新能绿色能源有限公司 | Plate-type vacuum heat-insulated solar thermal collector |
| CN107270553A (en) * | 2017-04-27 | 2017-10-20 | 赤水市天云能源有限公司 | Solar thermal collector |
| CN109618913A (en) * | 2018-12-29 | 2019-04-16 | 宁波微萌种业有限公司 | A kind of wall bee pollinating device |
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