CN203375750U - All-glass vacuum solar heat-collecting tube - Google Patents
All-glass vacuum solar heat-collecting tube Download PDFInfo
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- CN203375750U CN203375750U CN201320475194.1U CN201320475194U CN203375750U CN 203375750 U CN203375750 U CN 203375750U CN 201320475194 U CN201320475194 U CN 201320475194U CN 203375750 U CN203375750 U CN 203375750U
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- glass tube
- cover glass
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- tube
- vacuum
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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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Abstract
An all-glass vacuum solar heat-collecting tube includes an inner glass tube and a cover glass tube. A vacuum interlayer is arranged between the inner glass tube and the cover glass tube; the inner glass tube is provided with a solar selective absorbing coating; a support piece and getters are arranged in the vacuum interlayer; the end of the cover glass tube is provided with an intake film; the outline of the cross section of the inner wall of the cover glass tube is a regular polygon, and the outline of the cross section of the outer wall of the cover glass tube is a circle; any linear edge of the regular polygon and an arc-shaped segment corresponding to the outer wall of the cover glass tube form a plano-convex type convex surface; or the outline of the cross section of the inner wall of the cover glass tube is a circle which is formed by connecting a plurality of arc-shaped edges, any arc-shaped edge is opposite to an arc-shaped segment corresponding to the outer wall of the cover glass tube, and the arc-shaped edge and the corresponding arc-shaped segment form a convexo-convex type convex surface. According to the all-glass vacuum solar heat-collecting tube, the problem that water temperature rises slowly or the water temperature barely rises with regard to a common solar heater under the condition that solar rays are weak is solved.
Description
Technical field
The utility model relates to a kind of solar collector pipe, particularly a kind of all glass vacuum heat collection tube of solar energy.
Background technology
The close-coupled domestic solar water heater, leading products and normal conventional product as the solar energy optical-thermal industry enlivened for two more than ten years in Solar Heater Market, now spread all over already huge numbers of families, brought many convenience and material benefit to users' daily bathing.Yet these regular solar water heaters also fully expose problems and deficiency in the routine use process, now the regular solar water heater overwhelming majority is that mode with light-electricity complementary provides thermal source, if weather is good, solar irradiation is stronger, be to utilize the photo-thermal conversion regime of sunshine that thermal source is provided naturally; If cloudy day or rainy day, people want can only to enable the auxiliary heat of the electricity supporting with solar water heater with hot water and could solve.But in 1 year, often exist some day or some some period sunray of sky can irradiate faintlyer, under this condition, the vacuum tube heat absorbing intensification effect of solar water heater can be very poor, or slightly heat up and tend to scatter and disappear and cause water temperature in water-heater water tank substantially not rise because of the self heat of vacuum tube and water tank.Often enable in this case the auxiliary heat of electricity and can additionally increase users' use cost.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of all glass vacuum heat collection tube of solar energy, has solved under the regular solar water heater condition at sunray relatively faint, and solar water heater water-temperature rises slowly or the problem substantially do not heated up.And this solar energy heat collection pipe is simple in structure, technique is simple, production cost is low.
The technical scheme that the utility model is taked is: a kind of all glass vacuum heat collection tube of solar energy, comprise inner glass tube, cover glass tube, be provided with vacuum interlayer between described inner glass tube, cover glass tube, inner glass tube is provided with solar selective absorbing coating, be provided with support member, getter in vacuum interlayer, the cover glass tube end is provided with breathing film, the cross section of inboard wall profile of described cover glass tube is regular polygon, the external wall cross-section profile of described cover glass tube is circular, and the segmental arc that any straight line of described regular polygon is corresponding with outer wall forms Flat protruding type convex lens face.
A kind of all glass vacuum heat collection tube of solar energy, comprise inner glass tube, cover glass tube, be provided with vacuum interlayer between described inner glass tube, cover glass tube, inner glass tube is provided with solar selective absorbing coating, be provided with support member, getter in vacuum interlayer, the cover glass tube end is provided with breathing film, it is characterized in that, the cross section of inboard wall profile of described cover glass tube is the circle that a plurality of arc-shaped sides connect and compose, the segmental arc that any arc-shaped side is corresponding with outer wall is reverse, and described arc-shaped side forms double-convex type convex lens face with corresponding segmental arc.
A kind of all glass vacuum heat collection tube of solar energy of the utility model, solved under the regular solar water heater condition at sunray relatively faint, and solar water heater water-temperature rises slowly or the problem substantially do not heated up.Can need the part electricity charge that pay for vast solar water heater user saves because enabling the auxiliary heat of solar-electricity, economical and practical.And the utility model principle science, simple in structure, easy realization, realize that technique is simple and production cost is not high yet, as long as transform the production mould of cover glass tube woollen, can realize.
The accompanying drawing explanation
Fig. 1 is a kind of all glass vacuum heat collection tube of solar energy structural representation of the utility model.
Fig. 2 is the described cover glass tube structural representation of the utility model embodiment 1.
Fig. 3 is the described cover glass tube structural representation of the utility model embodiment 2.
The specific embodiment
Operation principle:
As shown in Figure 1, when traditional complete glass vacuum sun thermal-collecting tube is worked, sunshine is radiated on the solar selective absorbing coating 2 of inner glass tube 1 outer wall by cover glass tube 4 and vacuum interlayer 3 with rectilinear direction.Solar selective absorbing coating 2 is realized the photo-thermal conversion and makes to manage interior water temperature with heat exchange pattern continuing to rise by absorbing solar energy.Because of vacuum interlayer 3 absolute vacuum not, the water in inner glass tube 1 also more externally dispels the heat with heat conduction and thermal-radiating mode at the residual gas by vacuum interlayer 3 when heating up.When the sunray absorbed when solar selective absorbing coating 2 is fainter, the water temperature in pipe can rise slowlyer, or substantially less heats up because of the vacuum tube self-radiating.
A kind of all glass vacuum heat collection tube of solar energy of the utility model, vacuum tube cover glass tube 4 profiles are made to the focusing convex lens band that is equivalent to a plurality of different angles, will be from cover glass tube, the sunray of the rectilinear direction parallel radiation outside 4 is by the refraction of the convex lens band of many different angles, seeing through vacuum interlayer 3 focusing is radiated on solar selective absorbing coating 2, the sunray absorbed because of a plurality of different parts on solar selective absorbing coating 2 strengthens greatly because of focusing, its photo-thermal conversion efficiency obviously improves, and makes to manage interior water temperature and rises with comparatively faster speed.
Embodiment 1:
As shown in Figure 2, a kind of all glass vacuum heat collection tube of solar energy, comprise inner glass tube 1, cover glass tube 4, be provided with vacuum interlayer 3 between described inner glass tube 1, cover glass tube 4, inner glass tube 1 is provided with solar selective absorbing coating 2, be provided with support member 5, getter 6 in vacuum interlayer 3, cover glass tube 4 ends are provided with breathing film 7.
The main distinction of the utility model and existing ordinary vacuum tube is: the peripheral profile of the cross section of inboard wall inner edge profile of cover glass tube 4 and external wall cross-section is not concentric circles, a but regular polygon, the external wall cross-section profile of described cover glass tube 4 is circular, the segmental arc 8 formation Flat protruding type convex lens faces 9 on any straight line of described regular polygon circumference corresponding with outer wall.This kind of Flat protruding type convex lens face 9 connects to the convex lens band of managing a plurality of different angles of urogenesis from the vacuum tube mouth of pipe, sunshine is by the refraction of the convex lens band generation light of a plurality of different angles, see through vacuum interlayer 3, focus on and be radiated on solar selective absorbing coating 2 to some extent, and the stronger sunshine that solar selective absorbing coating 2 occurs after Refractive focusing by absorption is realized making the photo-thermal conversion to manage interior water temperature with heat exchange pattern and rise with comparatively faster speed.
Wherein: the limit number of described regular polygon:: the number of the convex lens band of a plurality of different angles that the cover glass tube 4 of this vacuum tube forms, numerical value is because of the caliber size difference flexible design of the vacuum tube of different model, and glass thickness and the optically focused focal length of its convex lens band are also different.
Embodiment 2:
As shown in Figure 3, a kind of all glass vacuum heat collection tube of solar energy, comprise inner glass tube 1, cover glass tube 4, be provided with vacuum interlayer 3 between described inner glass tube 1, cover glass tube 4, inner glass tube 1 is provided with solar selective absorbing coating 2, be provided with support member 5, getter 6 in vacuum interlayer 3, cover glass tube 4 ends are provided with breathing film 7.
The cross section of inboard wall profile of described cover glass tube 4 is the circle that a plurality of arc-shaped sides connect and compose, and the external wall cross-section profile of described cover glass tube 4 is circular.Segmental arc 8 on any arc-shaped side circumference corresponding with outer wall is reverse.That is: the opening of arc-shaped side is corresponding with the opening of described segmental arc 8.Arc-shaped side, respectively along the inside and outside projection of cover glass tube 4 tube wall, forms biconvex.
Described arc-shaped side forms double-convex type convex lens face 10 with corresponding segmental arc 8.Form therefrom the vacuum tube of convex lens band of the double-convex type of a plurality of different angles.
Wherein: the arc-shaped side number of the circle that described a plurality of arc-shaped sides connect and compose:: the number of the convex lens band of the double-convex type of a plurality of different angles that the cover glass tube 4 of this vacuum tube forms, numerical value is because of the caliber size difference flexible design of the vacuum tube of different model, and glass thickness and the optically focused focal length of its convex lens band are also different.
Claims (2)
1. an all glass vacuum heat collection tube of solar energy, comprise inner glass tube (1), cover glass tube (4), described inner glass tube (1), be provided with vacuum interlayer (3) between cover glass tube (4), inner glass tube (1) is provided with solar selective absorbing coating (2), be provided with support member (5) in vacuum interlayer (3), getter (6), cover glass tube (4) end is provided with breathing film (7), it is characterized in that, the cross section of inboard wall profile of described cover glass tube (4) is regular polygon, the external wall cross-section profile of described cover glass tube (4) is circular, the segmental arc (8) that any straight line of described regular polygon is corresponding with outer wall forms Flat protruding type convex lens face (9).
2. an all glass vacuum heat collection tube of solar energy, comprise inner glass tube (1), cover glass tube (4), described inner glass tube (1), be provided with vacuum interlayer (3) between cover glass tube (4), inner glass tube (1) is provided with solar selective absorbing coating (2), be provided with support member (5) in vacuum interlayer (3), getter (6), cover glass tube (4) end is provided with breathing film (7), it is characterized in that, the cross section of inboard wall profile of described cover glass tube (4) is the circle that a plurality of arc-shaped sides connect and compose, the segmental arc (8) that any arc-shaped side is corresponding with outer wall is reverse, described arc-shaped side forms double-convex type convex lens face (10) with corresponding segmental arc (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475194.1U CN203375750U (en) | 2013-08-06 | 2013-08-06 | All-glass vacuum solar heat-collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475194.1U CN203375750U (en) | 2013-08-06 | 2013-08-06 | All-glass vacuum solar heat-collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203375750U true CN203375750U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475194.1U Expired - Fee Related CN203375750U (en) | 2013-08-06 | 2013-08-06 | All-glass vacuum solar heat-collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203375750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466047A (en) * | 2015-12-29 | 2016-04-06 | 山东耀国光热科技股份有限公司 | Black high borosilicate glass pipe for solar heat collecting pipe and production process thereof |
-
2013
- 2013-08-06 CN CN201320475194.1U patent/CN203375750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466047A (en) * | 2015-12-29 | 2016-04-06 | 山东耀国光热科技股份有限公司 | Black high borosilicate glass pipe for solar heat collecting pipe and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160806 |