CN107560190A - A kind of solar vacuum heat-collecting pipe - Google Patents
A kind of solar vacuum heat-collecting pipe Download PDFInfo
- Publication number
- CN107560190A CN107560190A CN201610516638.XA CN201610516638A CN107560190A CN 107560190 A CN107560190 A CN 107560190A CN 201610516638 A CN201610516638 A CN 201610516638A CN 107560190 A CN107560190 A CN 107560190A
- Authority
- CN
- China
- Prior art keywords
- tube
- absorption tube
- solar
- outside
- glass
- 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.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 32
- 239000011521 glass Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052571 earthenware Inorganic materials 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010962 carbon steel Substances 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 229910000833 kovar Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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
- Y02E10/44—Heat exchange systems
-
- 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
- Y02E10/47—Mountings or tracking
-
- 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
Landscapes
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of solar vacuum heat-collecting pipe, including being provided with absorption tube in glass bushing, glass bushing, vacuum layer is formed by transition connection portion part airtight connection between glass bushing and absorption tube, getter can be placed in vacuum layer, the absorption tube is to be provided with solar absorbing layer outside earthenware.Layer of metal layer can also be first plated outside described earthenware, solar absorbing layer is provided with outside described metal level, described metal level can be copper facing, carbon steel, stainless steel or aluminium.So due to having plated metal outside earthenware, the combination of earthenware and solar energy absorbing coating is just more preferable, improves the performance of pipe.Protective cover can be provided with outside the seam of the transition connection portion part of described glass tube and absorption tube, the aging to prevent sunshine direct projection seam, extends pipe service life.Support member can be also provided between described glass tube and absorption tube, can preferably ensure the stabilization of total.
Description
Technical field
The present invention relates to technical field of solar utilization technique, more particularly to a kind of solar vacuum heat-collecting pipe.
Background technology
Solar vacuum heat-collecting pipe is the core component in the systems such as solar heating engineering, trough type solar power generation,
Straight-through vacuum thermal-collecting tube in the market is metal-glass formula vacuum heat collection pipe, and stainless steel tube is mounted in concentric cylindrical glass
Vacuum is kept in set, in glass tube to reduce heat loss, stainless steel pipe surface is absorbed using magnetron sputtering coating high-temperature selective
The thermal expansion coefficient difference of coating, thermal-arrest metal tube and glass bushing is obvious, therefore is connected using bellows, bellows and glass
Kovar alloy sealing-in is used between sleeve pipe, this high-temperature heat-collection pipe for tank-type thermal power generation sealing technology is at present only by moral, Israel etc.
A small number of producers of country grasp.
Retrieval finds that the Chinese invention patent application of Application No. 031588328 discloses a kind of heat absorption tube for solar energy,
The patent application is improved by structure, it is proposed that a kind of more durable endothermic tube.However, wherein still it be unable to do without kovar alloy
Sealing-in --- i.e. glass-metal-transition piece.
Applicant also designed the technical scheme using kovar alloy sealing-in in previous studies, but by practice and
Further study show that the technical scheme containing kovar alloy sealing structure has the following disadvantages：One is due to that use can
The complex process that alloy processes glass bushing and bellows sealing-in is cut down, cost remains high；Second, glass tube and kovar alloy
Because the reasons such as stress be present at sealing-in, it is easily broken or vacuum failure.
The content of the invention
The shortcomings that difficult, cost is high is connected in order to solve glass bushing existing for prior art with bellows, the present invention carries
Go out a kind of solar vacuum heat-collecting pipe, heat pipe be made by ceramics, the sealing of pipe without adding expansion joint, can be improved,
Overall performance greatly improves.
The technical scheme that the present invention takes is：A kind of solar vacuum heat-collecting pipe, including glass bushing, the glass bushing
It is interior to be provided with absorption tube, vacuum layer is formed by transition connection portion part airtight connection between the glass bushing and the absorption tube, very
Getter can be placed in dead level, preferably to ensure vacuum, the absorption tube is to be provided with solar absorption outside earthenware
Layer.Layer of metal layer can also be first plated outside described earthenware, solar absorbing layer is provided with outside described metal level,
Described metal level can be copper facing, carbon steel, stainless steel or aluminium.So due to having plated metal outside earthenware, earthenware and
The combination of solar energy absorbing coating is just more preferable, improves the performance of pipe.Connect in the transition of described glass tube and absorption tube
Protective cover can be provided with outside the seam of relay part, causes aging to prevent sunshine direct projection seam, extend pipe uses the longevity
Life.Support member is also provided between described glass tube and absorption tube, can preferably ensure the stabilization of total.
Beneficial effects of the present invention are：1. safety and reliability, superior performance.Because absorption tube is directly made by ceramic material
Into the linear expansion coefficient of ceramic material is very small, and because of temperature, caused swell increment difference can be ignored, therefore need not
Bellows is still further used, absorption tube will not also rupture, and reduce connecting sewing, improve airtight performance；
It is even closer with the combination of absorption sun light coating after 2. metal level has been plated outside other earthenware, improve pipe
Performance, 100 DEG C -150 DEG C of thermal source can be produced, in solar seawater desalination system；Inhaled using specific ceramic material
Closed tube and process for sealing, the present invention can be also used in the higher Solar Energy Heat Utilization System of temperature requirement.
3. the setting of support member can effectively improve the intensity of whole pipe, the setting of protective cover can prevent seam crossing
Aging, extend the service life of pipe.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is Fig. 1, Fig. 2 A direction views.
Fig. 4 is Fig. 1, Fig. 2 B-B direction view.
Wherein：1-transition piece, 2-glass tube, 3-absorption tube, 4-vacuum layer, 5-support, 6-getter,
7-protective cover, 8-solar absorbing layer, 9-metal level.
Embodiment
The present invention will be further described with exemplary embodiments below in conjunction with the accompanying drawings：
Embodiment 1
The structure of the present embodiment is as shown in figure 1, this includes glass using the solar vacuum heat-collecting pipe of absorption of ceramic materials pipe
Glass pipe 2, the absorption tube 3 being coaxially mounted in glass tube 2, and it is tightly connected the transition connection portion part 1 of the two, the glass tube
It is vacuum layer 4 between 2 and absorption tube 3, getter can be placed in vacuum layer 4 preferably to ensure vacuum therein, it is described
Absorption tube 3 is made of ceramic materials, and is coated with metal level 9 outside ceramic layer, and metal level can be copper, carbon steel, stainless steel or aluminium,
Apply solar absorbing layer 8 again outside metal level, the combination by so processing ceramic layer and solar absorbing layer is closer, carries
The high performance of pipe.And due to the linear expansion coefficient very little of ceramics, because of temperature, caused swell increment difference can be ignored
Disregard, so there is no need to set expansion joint in addition to adjust swell increment, both simplify production technology, also preferably improve
The performance of whole pipe.For the stabilization of holding structure, support member 5 can be increased between glass tube 2 and absorption tube 3；The support
Part 5 can be made up of circle arc support seat, elastic blade, conflict head, arc radius and the external diameter phase of absorption tube 3 of circle arc support seat
Match somebody with somebody, be fixed on outside absorption tube, elastic blade is resisted against glass from being stretched to both sides on circle arc support seat by the conflict head of end
Positioned in pipe 2.During assembling, one group of support member two pieces, it is separately fixed at the both sides of absorption tube 3 and symmetrically locates.In order to protect transition to connect
Interface between part 1 and glass tube 2 and absorption tube 3, can be in the additional protective cover 7 of seam.
Embodiment 2
The structure of the present embodiment as shown in Fig. 2 structure is similar to Example 1, be exactly ceramic absorption tube 3 and glass tube 2 it
Between directly connected by transition connection portion part 1, outside is not added with protective cover, and solar absorbing layer is directly coated with ceramic absorption tube 3
8。
Claims (5)
1. absorption tube, glass bushing and absorption tube are provided with a kind of solar vacuum heat-collecting pipe, including glass bushing, glass bushing
Between vacuum layer formed by transition connection portion part airtight connection, it is characterised in that the absorption tube is earthenware, in described pottery
Solar absorbing layer is provided with outside porcelain tube.
2. solar energy heat collection pipe as claimed in claim 1, it is characterised in that connect in the transition of described glass tube and absorption tube
The seam of relay part is externally provided with protective cover.
3. solar energy heat collection pipe as claimed in claim 1, it is characterised in that be provided between described glass tube and absorption tube
Support member.
4. solar energy heat collection pipe as claimed in claim 1, it is characterised in that metal level is additionally provided with outside described earthenware,
Solar absorbing layer is provided with outside described metal level.
5. solar energy heat collection pipe as claimed in claim 1, it is characterised in that described metal level be aluminium, carbon steel, stainless steel or
Copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516638.XA CN107560190A (en) | 2016-07-02 | 2016-07-02 | A kind of solar vacuum heat-collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516638.XA CN107560190A (en) | 2016-07-02 | 2016-07-02 | A kind of solar vacuum heat-collecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107560190A true CN107560190A (en) | 2018-01-09 |
Family
ID=60969327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610516638.XA Pending CN107560190A (en) | 2016-07-02 | 2016-07-02 | A kind of solar vacuum heat-collecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560190A (en) |
-
2016
- 2016-07-02 CN CN201610516638.XA patent/CN107560190A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180109 |
|
| WD01 | Invention patent application deemed withdrawn after publication |