CN202660793U - Epitaxial straight-through type solar heat absorption tube - Google Patents
Epitaxial straight-through type solar heat absorption tube Download PDFInfo
- Publication number
- CN202660793U CN202660793U CN 201220260760 CN201220260760U CN202660793U CN 202660793 U CN202660793 U CN 202660793U CN 201220260760 CN201220260760 CN 201220260760 CN 201220260760 U CN201220260760 U CN 201220260760U CN 202660793 U CN202660793 U CN 202660793U
- Authority
- CN
- China
- Prior art keywords
- straight
- type solar
- glass
- metal inner
- glass outer
- 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
Links
- 238000010521 absorption reaction Methods 0.000 title abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims description 5
- 229910000833 kovar Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910000986 non-evaporable getter Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- 239000005297 pyrex Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model provides an epitaxial straight-through type solar heat absorption tube. The epitaxial straight-through type solar heat absorption tube comprises metal inner tubes, glass outer tubes and corrugated tubes, wherein the corrugated tubes are annularly sleeved outside the metal inner tubes and are positioned on axial extending lines of the glass outer tubes; glass flanges are smelted at the ends of the glass outer tubes; transition pieces are connected to the glass flanges; the inner ends of the corrugated tubes are connected to the transition pieces; and the outer ends of the corrugated tubes are connected with the metal inner tubes through annular connection pieces. With the adoption of the epitaxial straight-through type solar heat absorption tube, the glass outer tubes and the corrugated tubes can be connected in a sealed manner; and when working under high temperature environment, the heat absorption tube can keep the hollowness.
Description
Technical field
A kind of straight-through type solar energy endothermic tube that the utility model is related belongs to solar heat-absorbing component, is suitable for high temperature heat utilization in the solar energy, belongs to solar energy heat utilization field.
Background technology
The common operating temperature of straight-through type solar energy endothermic tube is higher, and the heat absorption inner tube is generally metal tube, and such as stainless steel tube, and outer tube will satisfy the performances such as high printing opacity, waterproof, high strength, usually is made with Pyrex.Because metal inner pipe is different with the coefficient of expansion of glass outer tube, when variations in temperature, the two stroke is different, need to add expansion joint between the two, comes balance flexible poor such as bellows.Simultaneously, the connection between metal inner pipe and the glass outer tube needs transition material to connect, such as kovar alloy etc.And be connected multiple connected modes such as also being divided into sealing by fusing, press seal between transition piece and the glass.
Chinese patent CN1495394A is a kind of typical glass-metal endothermic tube melt-sealing structure, but owing to adopt the sealing by fusing mode between present glass and the metal transfer spare, when variations in temperature is larger, produce very large thermal stress at inside glass, this thermal stress can cause glass breakage, causes endothermic tube to lose efficacy.And the intensity of the thin-walled needle-like sealing-in edge of a knife is limited, may produce inefficacy when long-term work.The glass outer tube of this built-in corrugated tubular type absorption tube is usually thicker.
Chinese patent CN2012251301Y is a kind of typical press seal structure absorption tube, and its technology maturation is fit to promote.But need a connector between this vacuum tube bellows and the transition piece, technique is slightly aobvious complicated.Simultaneously, when middle high temperature is used, can be necessary in chamber, to arrange getter because many factors causes vacuum to descend in the pipe, in order to reduce heat radiation to the impact of endothermic tube, also should add a protective cover.
The utility model content
The utility model is for the problem that above-mentioned endothermic tube may exist, and proposes a kind of high sun utilization rate, process for sealing is suitable for the extension type straight-through type solar energy endothermic tube that middle high temperature is used easily.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of extension type straight-through type solar energy endothermic tube, comprise metal inner pipe, glass outer tube and bellows, described corrugated pipe ring is enclosed within outside the described metal inner pipe, and be positioned on the axially-extending line of described glass outer tube, it is characterized in that: the end of described glass outer tube is melt into glass flange, be connected with transition piece on the described glass flange, the inner of described bellows is connected in described transition piece, and the outer end then links to each other with metal inner pipe by the connector of ring-type.
In better technical scheme: described transition piece is ring-type, and material is kovar alloy, and is connected with described glass flange by the press seal mode.
In better technical scheme: be provided with exhaust nozzle at the glass outer tube.
In better technical scheme: described glass outer tube, transition piece, bellows, connector and metal inner pipe form a chamber, and described chamber is evacuated, and is provided with non-nonevaporable getter agent and/or evaporable air-absorbing agent in described chamber.
In better technical scheme: outside the glass outer tube corresponding to described bellows extension position place, be provided with protective cover.
In better technical scheme: the reflector that is welded with taper at described metal inner pipe corresponding to the position of described glass flange.
The utility model adopts the transition piece of kovar alloy material and the technology that glass flange structure press seal connects, and has solved the problem that is tightly connected between glass outer tube and the bellows, has guaranteed can keep its degree of hollowness when endothermic tube is worked under hot environment.The utility model can also improve sun utilization rate, and technique is comparatively simple, is easy to realize, if be combined with optically focused forms such as slot type, Fresnels, can be applied in the fields such as high temperature such as heating in the solar energy, desalinization, air-conditioning, heat generating.
Description of drawings
Fig. 1 is the sectional structure chart of a kind of endothermic tube of providing of the utility model.
Description of reference numerals: 1 glass outer tube; The 1a glass flange; 2 transition pieces; 3 bellowss; 4 connectors; 5 metal inner pipes; 6 chambers; 7 getters; 8 exhaust nozzles; 9 protective covers; 10 reflectors.
The specific embodiment
Shown in Figure 1 is the first embodiment of the present utility model, a kind of extension type straight-through type solar energy endothermic tube that provides, the metal inner pipe 5 and glass outer tube 1 that comprise from the inside to the outside coaxial setting, wherein, described metal inner pipe 5 is the stainless steel straight pipe, the selective absorber coatings of its outer surface sputter; Described glass outer tube 1, material is preferably Pyrex 3.3; Characteristics of the present utility model are:
The end of described glass outer tube 1 is melt into glass flange 1a, is connected with transition piece 2 in the outer end of described glass flange 1a, and the material of described transition piece 2 is kovar alloy, is shaped as ring-type, is connected with described glass flange 1a by the press seal mode;
The bellows 3 of ring set on described metal inner pipe 5 is positioned on the axially-extending line of described glass outer tube 1, and its inner is connected with described transition piece 2, and the outer end then links to each other with metal inner pipe 5 by the connector 4 of ring-type; Described bellows 3 can be used to cushion because the flexible glass outer tube 1 that causes of heat and the deformation difference between the metal inner pipe 5.
Extension type straight-through type solar energy endothermic tube provided by the utility model, bellows 3 are positioned at described glass outer tube 1 outward extending position, can not strengthen the diameter of endothermic tube, can save installing space.
And described glass outer tube 1, transition piece 2, bellows 3, connector 4, metal inner pipe 5 form a chamber 6, are evacuated by the exhaust nozzle 8 of arranging on the glass outer tube 1 in the described chamber 6; On the inner tubal wall of described chamber 6 or other positions the getter groove can also be set, and in described getter groove, non-nonevaporable getter agent 7 is set, perhaps evaporation has evaporable air-absorbing agent 7, perhaps haves both at the same time, to keep the vacuum in the chamber 6.
In addition, protective cover 9 can also be set in that the glass outer tube 1 at the described bellows of correspondence 3 extension position places is outer, be used for protecting vacuum outer tube 1 and connector 2 and solder joint not to be subjected to the impact of high temperature solar radiation.
Be welded with the reflector 10 of taper corresponding to the position of described glass flange 1a at metal inner pipe 5, the effect of reflector 10 can be seen in metal by reflected solar radiation, improve solar absorptance, reduce simultaneously solar radiation to the impact of bellows and welding position.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, in the situation that does not break away from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.
Claims (6)
1. extension type straight-through type solar energy endothermic tube, comprise metal inner pipe, glass outer tube and bellows, described corrugated pipe ring is enclosed within outside the described metal inner pipe, and be positioned on the axially-extending line of described glass outer tube, it is characterized in that: the end of described glass outer tube is melt into glass flange, be connected with transition piece on the described glass flange, the inner of described bellows is connected in described transition piece, and the outer end then links to each other with metal inner pipe by the connector of ring-type.
2. extension type straight-through type solar energy endothermic tube according to claim 1, it is characterized in that: described transition piece is ring-type, material is kovar alloy, and is connected with described glass flange by the press seal mode.
3. extension type straight-through type solar energy endothermic tube according to claim 1 is characterized in that: be provided with exhaust nozzle at the glass outer tube.
4. extension type straight-through type solar energy endothermic tube according to claim 1, it is characterized in that: described glass outer tube, transition piece, bellows, connector and metal inner pipe form a chamber, described chamber is evacuated, and is provided with non-nonevaporable getter agent and/or evaporable air-absorbing agent in described chamber.
5. extension type straight-through type solar energy endothermic tube according to claim 1 is characterized in that: be provided with protective cover outside the glass outer tube corresponding to described bellows extension position place.
6. extension type straight-through type solar energy endothermic tube according to claim 1 is characterized in that: the reflector that is welded with taper at described metal inner pipe corresponding to the position of described glass flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260760 CN202660793U (en) | 2012-06-04 | 2012-06-04 | Epitaxial straight-through type solar heat absorption tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260760 CN202660793U (en) | 2012-06-04 | 2012-06-04 | Epitaxial straight-through type solar heat absorption tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202660793U true CN202660793U (en) | 2013-01-09 |
Family
ID=47455698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220260760 Expired - Lifetime CN202660793U (en) | 2012-06-04 | 2012-06-04 | Epitaxial straight-through type solar heat absorption tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202660793U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713258A (en) * | 2015-03-11 | 2015-06-17 | 常州龙腾太阳能热电设备有限公司 | Gas suction device of evacuated solar collector tube |
| CN104713257A (en) * | 2015-03-11 | 2015-06-17 | 常州龙腾太阳能热电设备有限公司 | Outer protecting cover for sealing portion of evacuated solar collector tube |
| CN108826715A (en) * | 2018-08-13 | 2018-11-16 | 内蒙古工业大学 | A kind of step phase-change accumulation energy high temperature straight through heat collection tube |
-
2012
- 2012-06-04 CN CN 201220260760 patent/CN202660793U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713258A (en) * | 2015-03-11 | 2015-06-17 | 常州龙腾太阳能热电设备有限公司 | Gas suction device of evacuated solar collector tube |
| CN104713257A (en) * | 2015-03-11 | 2015-06-17 | 常州龙腾太阳能热电设备有限公司 | Outer protecting cover for sealing portion of evacuated solar collector tube |
| CN108826715A (en) * | 2018-08-13 | 2018-11-16 | 内蒙古工业大学 | A kind of step phase-change accumulation energy high temperature straight through heat collection tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101498517B (en) | Solar high-temperature vacuum heat-collecting tube | |
| CN101245954B (en) | Metal tube receiver for groove type line focusing solar heat collector | |
| CN202660793U (en) | Epitaxial straight-through type solar heat absorption tube | |
| CN201327211Y (en) | Solar energy metal straight-through type heat-collecting pipe | |
| CN101986060B (en) | Solar heat-absorbing pipe | |
| CN100570235C (en) | Inner-expanded-type solar vacuum heat-collecting pipe | |
| CN201740293U (en) | Glass-metal seal type solar evacuated collector tube | |
| CN201945073U (en) | Intermediate-temperature solar vacuum heat-collecting pipe | |
| CN201561595U (en) | Double-layered coaxial double-pass all-glass solar collector tube | |
| CN202660794U (en) | Built-in through way type solar heat-absorbing pipe | |
| CN201666682U (en) | Medium- and high-temperature solar vacuum heat collecting tube | |
| CN101097096A (en) | Pipe tail low heat loss medium transfer sun vacuum energy changing hot pipe | |
| CN201637174U (en) | Medium and high temperature solar energy vacuum heat collecting tube | |
| CN107062660B (en) | End sealing structure of metal straight-through vacuum heat collecting pipe | |
| CN201561587U (en) | Expansion compensation device of solar vacuum collector tube | |
| CN214620129U (en) | Metal straight-through pipe for groove type solar intermediate temperature heat collector | |
| CN201666681U (en) | End portion sealing structure of low and high temperature solar energy vacuum heat-collecting tube | |
| CN204084898U (en) | Novel slot solar energy heat absorption pipe | |
| CN202928166U (en) | Solar energy vacuum heat collection tube | |
| CN104266375B (en) | Novel slot solar energy heat absorption pipe | |
| CN204987517U (en) | Glass - metal solar vacuum heat collection tube | |
| CN201352016Y (en) | Explosion-proof type evacuated solar collector tube | |
| CN201909482U (en) | Intermediate temperate solar-energy vacuum heat collecting tube | |
| CN201954814U (en) | End part sealing structure of intermediate-temperature solar vacuum heat collection pipe | |
| CN201181120Y (en) | Vacuum heat collecting tube |
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: 20130109 |