CN202973626U - Solar vacuum tube - Google Patents
Solar vacuum tube Download PDFInfo
- Publication number
- CN202973626U CN202973626U CN 201220694745 CN201220694745U CN202973626U CN 202973626 U CN202973626 U CN 202973626U CN 201220694745 CN201220694745 CN 201220694745 CN 201220694745 U CN201220694745 U CN 201220694745U CN 202973626 U CN202973626 U CN 202973626U
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- CN
- China
- Prior art keywords
- outer tube
- glass outer
- metal
- metal inner
- inner pipe
- 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 - Lifetime
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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
The utility model discloses a solar vacuum tube which comprises a glass outer tube, a kovar alloy ring, a radial ripple metal component and a metal inner tube. The metal inner tube and the glass outer tube are coaxial and the metal inner tube penetrates the glass outer tube. The end portion of the glass outer tube is connected with the sealed radial ripple metal component provided with ripples through the kovar alloy ring and connected with the metal inner tube through the radial ripple metal component to form a sealing structure. A vacuum sealing space is formed between the metal inner tube and the glass outer tube and provided with a getter structural component. The sealing structure is arranged on the junction surface of a circular space formed by the metal inner tube and the glass outer tube and the outer potion of the sealing structure. The solar vacuum tube is simple in structure, high in using efficiency of sunlight and wide in application range.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of solar vacuum heat-collecting pipe.
Background technology
Solar energy receives in recent years the increasing concern of people and uses as a kind of new forms of energy of cleanliness without any pollution.
And hanker high-temperature field at solar energy, particularly in the slot type collecting system, the heat collector that generally adopts at present is solar vacuum heat-collecting pipe.
The slot type collecting system is by the parabolic type solar radiation reflection unit that can follow the tracks of running track from sun, solar radiation to be focused on the vacuum heat collection pipe that the focus of parabolic type reflection unit settles, and is born by vacuum heat collection pipe and collects and the function of transmission heat.This vacuum heat collection pipe has a mesotube and a glass bushing that surrounds this mesotube, forms an annular space between the two, is provided with the getter construction package in this annular space.This mesotube and glass metal interconnect by means of a bellows structure.This bellows structure is born two kinds of functions, and function is the expansion compensation between metal tube and glass bushing, and another function forms the vacuum seal space for making between mesotube and sleeve pipe.
Hermetically-sealed construction existing problems when the vacuum heat collection pipe of this existing slot type collecting system cause the sunshine utilization rate not high.
The utility model content
Many aspects of the present utility model provide a kind of solar vacuum heat-collecting pipe, and this solar vacuum heat-collecting pipe is simple in structure, the sunshine utilization rate is high, applied range.
An aspect of the present utility model provides a kind of solar vacuum heat-collecting pipe, comprise the glass outer tube, the kovar alloy ring, radial corrugation metal assembly and metal inner pipe, this metal inner pipe and described glass outer coaxial tube also pass described glass outer tube, this glass outer tube is connected by the radial corrugation metal assembly that kovar alloy ring and footpath upwards have a sealing of ripple in the end, be connected with metal inner pipe by this radial corrugation metal assembly again, form hermetically-sealed construction, formation vacuum seal space between described metal inner pipe and described glass outer tube; Be provided with the getter construction package in formed seal cavity, this hermetically-sealed construction is on metal inner pipe and the formed annular space of the glass outer tube interface outside with it.
Better, described metal inner pipe has absorber coatings.
Better, described vacuum seal space is the ring vaccum seal cavity.
Better, described radial corrugation metal assembly can compensate the thermal expansion phenomenon by flexible and swing.
Better, described radial corrugation metal assembly has elasticity, by flexible and swing, the thermal expansion phenomenon is compensated.
Better, described radial corrugation metal assembly is an annular metal component, has ripple struction in radial direction.
The solar vacuum heat-collecting pipe of foregoing description, simple in structure, the sunshine utilization rate is high, applied range.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of solar vacuum heat-collecting pipe cross section structure schematic diagram of the utility model one embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Many aspects of the present utility model provide a kind of solar vacuum heat-collecting pipe, and this solar vacuum heat-collecting pipe is simple in structure, the sunshine utilization rate is high, applied range, has improved original end seal structure.
as shown in Figure 1, a kind of solar vacuum heat-collecting pipe cross section structure schematic diagram for the utility model one embodiment, described solar vacuum heat-collecting pipe comprises glass outer tube 1, kovar alloy ring 2, radial corrugation metal assembly 3 and metal inner pipe 4, this metal inner pipe 4 is coaxial and pass described glass outer tube 1 with described glass outer tube 1, be that described metal inner pipe 4 is inserted among described glass outer tube 1, glass outer tube 1 is connected by the radial corrugation metal assembly 3 that kovar alloy ring 2 and footpath upwards have a sealing of ripple in the end, be connected with metal inner pipe 4 by this radial corrugation metal assembly 3 again, form hermetically-sealed construction, formation vacuum seal space between described metal inner pipe 4 and described glass outer tube 1, be provided with the getter construction package in formed seal cavity, this hermetically-sealed construction is on metal inner pipe 4 and the formed annular space of glass outer tube 1 interface outside with it.Better, described closed cavity is vacuum.
The utility model has the advantage of the end seal structure of described solar vacuum heat-collecting pipe, this structure comprises metal inner pipe 4, glass outer tube 1, metal inner pipe 4 is inserted among glass outer tube 1, and glass outer tube 1 end and metal inner pipe 4 are tightly connected by the radial corrugation metal assembly 3 that the footpath upwards has ripple.Described hermetically-sealed construction is on metal inner pipe and the formed annular space of the glass appearance interface outside with it, structure is compacter, the letter joint, sealing property is superior, expansion compensation function with bellows structure, and increased the absorber coatings effective length of metal tube end due to compact conformation, improved the collecting efficiency of vacuum heat collection pipe.
Better, described metal inner pipe 4 has absorber coatings.
Better, glass outer tube 1 is connected by the radial corrugation metal assembly 3 that kovar alloy ring 2 and footpath upwards have a sealing of ripple in the end, be connected with metal inner pipe 4 by this radial corrugation metal assembly 3 again, make and form a ring vaccum seal cavity between metal inner pipe 4 and glass outer tube 1.Described ring vaccum seal cavity is provided with the getter construction package.
Better, described radial corrugation metal assembly 3 has elasticity, by flexible and swing, the thermal expansion phenomenon is compensated.
Better, described radial corrugation metal assembly 3 is annular metal components, has ripple struction in radial direction.
Wherein, described footpath upwards have the sealing radial corrugation metal assembly 3 of ripple can be by flexible and swing and compensate the thermal expansion phenomenon; In configuration aspects, the sealing structure is compacter in the axial direction, hermetically-sealed construction is on metal inner pipe and the formed annular space of glass appearance and outside therebetween interface, make the part that the metal tube absorber coatings is blocked reduce, improve the effective length of metal tube absorber coatings, thereby improved the absorption efficiency of solar vacuum heat-collecting pipe.
Explanation is at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (5)
1. a solar vacuum heat-collecting pipe, is characterized in that, comprises glass outer tube (1), kovar alloy ring (2), and radial corrugation metal assembly (3) and metal inner pipe (4),
This metal inner pipe (4) is coaxial and pass described glass outer tube (1) with described glass outer tube (1), this glass outer tube (1) is connected by the radial corrugation metal assembly (3) that kovar alloy ring (2) and footpath upwards have a sealing of ripple in the end, be connected with metal inner pipe (4) by this radial corrugation metal assembly (3) again, form hermetically-sealed construction, formation vacuum seal space between described metal inner pipe (4) and described glass outer tube (1);
Be provided with the getter construction package in formed seal cavity, this hermetically-sealed construction is on metal inner pipe (4) and the formed annular space of glass outer tube (1) interface outside with it.
2. solar vacuum heat-collecting pipe as claimed in claim 1, is characterized in that, described metal inner pipe (4) has absorber coatings.
3. solar vacuum heat-collecting pipe as claimed in claim 1, is characterized in that, described vacuum seal space is the ring vaccum seal cavity.
4. solar vacuum heat-collecting pipe as claimed in claim 1, is characterized in that, described radial corrugation metal assembly (3) has elasticity, by flexible and swing, the thermal expansion phenomenon compensated.
5. solar vacuum heat-collecting pipe as claimed in claim 1, is characterized in that, described radial corrugation metal assembly (3) is an annular metal component, has ripple struction in radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694745 CN202973626U (en) | 2012-12-14 | 2012-12-14 | Solar vacuum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694745 CN202973626U (en) | 2012-12-14 | 2012-12-14 | Solar vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973626U true CN202973626U (en) | 2013-06-05 |
Family
ID=48514694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220694745 Expired - Lifetime CN202973626U (en) | 2012-12-14 | 2012-12-14 | Solar vacuum tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868254A (en) * | 2012-12-14 | 2014-06-18 | 北京天瑞星光热技术有限公司 | Solar evacuated collector tube |
| CN103884119A (en) * | 2014-04-02 | 2014-06-25 | 吴燕妮 | Solar water heater with washing device |
-
2012
- 2012-12-14 CN CN 201220694745 patent/CN202973626U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868254A (en) * | 2012-12-14 | 2014-06-18 | 北京天瑞星光热技术有限公司 | Solar evacuated collector tube |
| CN103884119A (en) * | 2014-04-02 | 2014-06-25 | 吴燕妮 | Solar water heater with washing device |
| CN103884119B (en) * | 2014-04-02 | 2016-01-20 | 吴燕妮 | A kind of solar water heater with cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |