CN202792655U - Glass tube and metal tube sealing and connecting device - Google Patents
Glass tube and metal tube sealing and connecting device Download PDFInfo
- Publication number
- CN202792655U CN202792655U CN 201220494451 CN201220494451U CN202792655U CN 202792655 U CN202792655 U CN 202792655U CN 201220494451 CN201220494451 CN 201220494451 CN 201220494451 U CN201220494451 U CN 201220494451U CN 202792655 U CN202792655 U CN 202792655U
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- China
- Prior art keywords
- tube
- metal
- bellows
- glass tube
- sealing
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- 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 glass tube and metal tube sealing and connecting device. A metal tube is sleeved in a glass tube. The glass tube and metal tube sealing and connecting device comprises a transition tube, a metal end cover and a bellows. The transition tube is sleeved outside the metal tube. One end of the transition tube is connected on the metal tube. The other end of the transmission tube is provide with outer flanging and is inserted into the glass tube. The metal end cover is made of expansion alloy materials and is sleeved on the transition tube. The outer periphery edge of the metal end cover is in sealed connection on the tube opening end surface of the glass tube in a hot-pressed mode. The bellows is sleeved on the transition tube which is arranged on the inner side of the metal end cover. One end of the bellows and the inner periphery edge of the metal end cover are together welded. The other end of the bellows is welded on the outer flanging of the transition tube. The glass tube and metal tube sealing and connecting device has the advantages of reducing assembling parts and production cost, reducing welded junctions by a half, decreasing production technology difficulty, improving rate of finished products, reducing production cost, effectively improving heat collection efficiency of an vacuum tube, and effectively prolonging service life of the vacuum tube.
Description
Technical field
The utility model relates to a kind of glass tube and metal tube sealing and connecting device.
Background technology
At present, in traditional glass-metal sealing by fusing mode, its seal component architecture is complicated, and requires glass tube and metal sealing material strictly to mate, and with regard to China market, this bi-material all is difficult to reach requirement, and the sealing-in metal price is expensive.The straight way type solar collector tube of another kind of metal tube absorber; bellows of its metal tube one end outside weldings; this bellows is positioned at the glass tube port outside; this bellows can absorb the expansion stroke of metal tube; thereby sealing-in place between cover glass pipe and the metal tube, this type bellows rapid heat dissipation, corrosion-resistant; its serviceability temperature is not suitable for the application of middle high temperature solar about 200 ℃.The straight way type solar collector tube that also has a kind of metal tube absorber, its bellows is positioned at the glass port inboard, but its bellows and end cap, all be attached with the transition modular construction between bellows and the transition conduit and not only increased load module, improved cost, weld bond quantity is doubled, because of bellows, metal end and transition assembly are all thinner, increased the welding difficulty, its solder yield reduces, and its transition assembly makes complex manufacturing, and the sealing modular assembly is originally improved greatly, and because of weldment thinner, weld bond is more, and its air-tightness is descended, and reduces service life and the resistance to elevated temperatures of vacuum tube.
Summary of the invention
For solving above technical deficiency, the utility model provides glass tube and the metal tube sealing and connecting device that a kind of bellows compensation effect is good, high temperature resistant, air-tightness is good, bonding strength is high.
The utility model is realized by following measures:
A kind of glass tube of the present utility model and metal tube sealing and connecting device, described metal tube is enclosed within the glass tube, comprising:
Transition conduit is enclosed within outside the metal tube, and the one end is connected on the metal tube, and the other end is provided with flanging and extends in the glass tube;
Metal end adopts the expansion alloy material, is enclosed within on the transition conduit, and its neighboring hot-press sealing is on the mouth of pipe end face of glass tube; And
Bellows is enclosed within on the transition conduit that is positioned at the metal end inboard, and the inner periphery of one end and described metal end welds together, and the other end is welded on the flanging of transition conduit.
Above-mentioned transition conduit end is outward extended with the reducing ring, and described reducing boxing is connected on metal tube surface.
The thickness of above-mentioned metal end is less than 1mm, and the thickness of bellows is less than 0.5mm.
Above-mentioned transition conduit and reducing ring thickness are 1 ~ 3mm.
The stroke of above-mentioned bellows is 10 ~ 30mm.
The beneficial effects of the utility model are: 1. the utility model arranges bellows and can effectively absorb the expansion stroke that metal tube produces because of heat absorption, the bulbs of pressure, cover glass pipe and metal tube sealing-in interface between buffering metal tube and the glass tube.Bellows can bear the high temperature of about 400 ℃ of metal tubes, and enlarged metal plumber makes temperature range and the scope of application.2. it is inboard that bellows of the present utility model is positioned at the glass tube port, therefore can effectively prevent bellows be exposed to glass tube when outer heat radiation and the problem of corrosion, collecting efficiency and the service life of this structure Effective Raise vacuum tube.3. be direct welding between bellows and metal end, bellows and the transition conduit, do not have the transition assembly, this kind structure decrease load module, reduce production cost, and weld bond quantity is reduced by half, reduced producting process difficulty, improve yield rate, reduced production cost.4. a reducing ring is welded in the transition conduit outer end, and the bulbs of pressure by reducing ring buffering transition conduit and metal tube make weld bond solid and reliable.5. before the metal end forming materials, through polishing, moulding is by phosphatization, Passivation Treatment, and anti-oxidant, the high temperature resistant and decay resistance of energy Effective Raise end cap has increased its service life.
Description of drawings
Fig. 1 is cross-sectional view of the present utility model.
Wherein: 1 metal end, 2 bellowss, 3 transition conduit, 4 reducing rings, 5 glass tubes, 6 metal tubes.
The specific embodiment
A kind of glass tube of the present utility model and metal tube sealing and connecting device, metal tube 6 is enclosed within the glass tube 5, comprises transition conduit 3, metal end 1 and bellows 2.Transition conduit 3 is enclosed within outside the metal tube 6, and the one end is connected on the metal tube 6, and the other end is provided with flanging and extends in the glass tube 5.Metal end 1 is the expansion alloy material, is enclosed within on the transition conduit 3, and its neighboring hot-press sealing is on the mouth of pipe end face of glass tube 5, and an end of metal end 1 inner periphery and bellows welds together jointly.Metal end 1 has increased its service life through anti-oxidant, the high temperature resistant and decay resistance of polishing energy Effective Raise end cap.
Bellows 2 is enclosed within on the transition conduit 3 that is positioned at metal end 1 inboard, the inner periphery of one end and metal end 1 welds together jointly, the other end directly is welded on the flanging of transition conduit 3, do not need transition member, this structure decrease load module, reduced production cost, make simultaneously weld bond quantity few, Effective Raise sealing property, processing performance and production efficiency.Bellows 2 is elastic telescopic spare, and its stroke is 10-30mm, can effectively absorb metal tube 6 high-temperature expansion strokes.
Preferably, the thickness of metal end 1 is less than 1mm, and the thickness of bellows 2 is less than 0.5mm.Transition conduit 3 and reducing ring 4 thickness are 1 ~ 3mm.
Claims (4)
1. a glass tube and metal tube sealing and connecting device, described metal tube is enclosed within the glass tube, it is characterized in that, comprising:
Transition conduit is enclosed within outside the metal tube, and the one end is connected on the metal tube, and the other end is provided with flanging and extends in the glass tube;
Metal end adopts the expansion alloy material, is enclosed within on the transition conduit, and its neighboring hot-press sealing is on the mouth of pipe end face of glass tube; And
Bellows is enclosed within on the transition conduit that is positioned at the metal end inboard, and the inner periphery of one end and described metal end welds together, and the other end is welded on the flanging of transition conduit.
2. according to claim 1 described glass tube and metal tube sealing and connecting device, it is characterized in that: described transition conduit end is outward extended with the reducing ring, and described reducing boxing is connected on metal tube surface.
3. according to claim 1 described glass tube and metal tube sealing and connecting device, it is characterized in that: the thickness of described metal end is less than 1mm, and the thickness of bellows is less than 0.5mm.
4. according to claim 2 described glass tube and metal tube sealing and connecting device, it is characterized in that: described transition conduit and reducing ring thickness are 1 ~ 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494451 CN202792655U (en) | 2012-09-26 | 2012-09-26 | Glass tube and metal tube sealing and connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494451 CN202792655U (en) | 2012-09-26 | 2012-09-26 | Glass tube and metal tube sealing and connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792655U true CN202792655U (en) | 2013-03-13 |
Family
ID=47819907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494451 Expired - Lifetime CN202792655U (en) | 2012-09-26 | 2012-09-26 | Glass tube and metal tube sealing and connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840703A (en) * | 2012-09-26 | 2012-12-26 | 山东威特人工环境有限公司 | Tight connecting device of glass tube and metal tube |
-
2012
- 2012-09-26 CN CN 201220494451 patent/CN202792655U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840703A (en) * | 2012-09-26 | 2012-12-26 | 山东威特人工环境有限公司 | Tight connecting device of glass tube and metal tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150730 Granted publication date: 20130313 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20151019 Granted publication date: 20130313 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160106 Address after: 253000 Shandong city of Dezhou Province Economic and Technological Development Zone Road red Patentee after: VICOT SOLAR TECHNOLOGY Co.,Ltd. Address before: 250000 Shandong province Dezhou Hongdu Road Economic Development Zone Patentee before: VICOT AIR CONDITIONING Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |