CN102135337B - Mechanical sealing device for medium and high temperature straightway heat collecting pipe - Google Patents
Mechanical sealing device for medium and high temperature straightway heat collecting pipe Download PDFInfo
- Publication number
- CN102135337B CN102135337B CN 201010000928 CN201010000928A CN102135337B CN 102135337 B CN102135337 B CN 102135337B CN 201010000928 CN201010000928 CN 201010000928 CN 201010000928 A CN201010000928 A CN 201010000928A CN 102135337 B CN102135337 B CN 102135337B
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- glass
- shaped connecting
- outer tube
- pipe
- sealing device
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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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- Gasket Seals (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention relates to a mechanical sealing device for a medium and high temperature straightway heat collecting pipe, which comprises a metal pipe, wherein an outer glass pipe is sleeved outside the metal pipe. The mechanical sealing device is characterized in that both ends of the outer glass pipe are provided with glass flanges which are outwards turned; annular locking clamps are sleeved at both ends of the outer glass pipe; the locking clamps and the glass flanges are clung to each other, and a seal gasket is additionally arranged between each locking clamp and the corresponding glass flange; U-shaped connecting heads are additionally arranged outside the locking clamps and the glass flanges; the U-shaped connecting heads are in threaded connection with the locking clamps; an expansion clearance is retained between the U-shaped connecting heads and the end surfaces of the glass flanges; and sealing gaskets are additionally arranged between the U-shaped connecting heads and the side faces of the glass flanges. When two ore more outer glass pipes are axially arrayed to server as the outer glass pipe, an H-shaped connecting head is additionally arranged between the two adjacent outer glass pipes. The mechanical sealing device provided by the invention has the advantages of simple, scientific and reasonable process, long-acting and durable seal effect, stable quality and stable performance and is convenient for industrialized assembly production; and long pipes are connected more stably and firmly due to the existence of the H-shaped connecting heads, so that the outer glass pipe can be more favorably protected, and the mechanical sealing device is widely used for the trough type solar power generating field.
Description
Technical field
A kind of middle high temperature straight-through solar collector tube mechanical seal device relates to the solar energy utilization technique field
Background technology
At present the patent documentation of relevant straight through heat collection tube has a lot, its basic structure all be with metal tube as endothermic tube, outer cover clear glass outer tube, and be the vacuum insulation space between the pipe.The pipe two ends are the metal connector, carry out the hot melt sealing-in of glass and metal by kovar alloy, perhaps with adhesive seal, cause the stress of different generations in order to compensate metal tube and the linear expansion of glass outer tube after the intensification, be connected with expansion joint at metal tube or glass outer tube.
Theory and technology scheme from above-mentioned patent documentation is seen in the time of implementing and is relatively easy to.But at present there are tens in enterprise and the unit that the time order and function in nearly ten years is researched and developed this straight pipe.Or many deficiencies, none successful commercialization such as heatproof is low or service life is short, and quality is unstable.Its key issue be since metal tube and the expansion of the bi-material of glass outer tube cause different, dilation frequently alternately in the dynamic stress variation vacuum seal easily destroy.This has proposed very high making precision techniques requirement for the vacuum seal between metal and the glass outer tube.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of technique simple, scientific and reasonable, be convenient to the industrialization Assembling Production, sealing effectiveness is long-acting lasting, steady quality, stable performance can not change because of the alternately dynamic stress of dilation and destroy vacuum-packed middle high temperature straight-through solar collector tube sealing device.
The technical solution adopted for the present invention to solve the technical problems is: a kind of middle high temperature straight-through solar collector tube mechanical seal device, comprise metal tube, the metal tube overcoat has the glass outer tube, it is characterized in that: described glass outer tube two ends have the glass flange of outward flanging, cover has annular locking clamp at glass outer tube two ends, locking clamp and glass flange near, be added with gasket seal therebetween, outside locking clamp and glass flange, be added with the U-shaped connector, the U-shaped connector is threaded with locking clamp, leave the expansion clearance between U-shaped connector and the glass flange end face, be added with gasket seal between U-shaped connector and the glass flange side.
When the glass outer tube is comprised of two or two above axially-aligned, be added with H shape connector between adjacent two glass outer tubes, H shape connector both sides are connected with respectively annular locking clamp, annular locking is fastened in outside the glass outer tube, H shape connector leaves the expansion clearance respectively and between the glass flange end face of glass outer tube, is added with gasket seal between H shape connector and the glass flange side.The connector of H shape connects the glass outer tube, can play and support fixing effect, makes whole device more firm.
The beneficial effect that the present invention has is: technique is simple; scientific and reasonable; be convenient to the industrialization Assembling Production, sealing effectiveness is long-acting lasting, steady quality; stable performance; be difficult for destroying vacuum seal because of the alternately dynamic stress of dilation, when long tube connects more stable firmly, can better the cover glass outer tube;, be widely used for the solar groove type power field.
Description of drawings
Fig. 1 is one of structural representation of the present invention;
Fig. 2 is two of structural representation of the present invention;
Wherein: 1, U-shaped connector; 2, locking clamp; 3, glass outer tube; 4, gasket seal; 5, metal tube; 6, glass flange; 7, H shape connector; 8, gasket seal
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
Such as Fig. 1, a kind of middle high temperature straight-through solar collector tube mechanical seal device, comprise metal tube 5, metal tube 5 overcoats have glass outer tube 3, described glass outer tube 3 two ends have the glass flange 6 of outward flanging, cover has annular locking clamp 2 at glass outer tube 3 two ends, locking clamp 2 and glass flange 6 near, be added with gasket seal 4 therebetween, outside locking clamp 2 and glass flange 6, be added with U-shaped connector 1, U-shaped connector 1 is threaded with locking clamp 2, leaves the expansion clearance between U-shaped connector 1 and glass flange 6 end faces, is added with gasket seal 8 between U-shaped connector 1 and glass flange 6 sides.Gasket seal 4 and 8 also has heat-insulating bridge-cut-off effect and buffering effect of stress etc. except sealing function is arranged.Metal tube 5 penetrates flanged (FLGD) glass outer tube 3 after putting into getter, and then metal tube 5 is inserted in the same circular centre hole of U-shaped connector 1.The moulding one-tenth of glass outer tube 3 two ends glass high temperature melting is to the glass flange 6 that turns up, and outer surface cover has the screw-threaded coupling card 2 of annular, between locking clamp 2 and the glass outer tube 3 gasket seal 4 is arranged.Locking clamp 2 screws in connector 1 screw thread glass flange is clipped between U-shaped connector 1 and the locking clamp 2 tightly admittedly.Glass flange 3 is fitted with 1 sealing of U connector.Glass flange 3 is fixed with U-shaped connector 1 inner mechanical grip by annular locking clamp 2.In the middle of U-shaped connector 1 and the glass flange 3 gasket seal 4 is arranged.Connector has steam vent with middle circular hole welded seal after metal tube 5 penetrates of circle at U-shaped connector 1, between metal tube 5 and the glass outer tube 3 getter is arranged.The straight through heat collection tube that assembles, carry out high-temperature exhaust air under 400 degrees centigrade, getter activated air is expanded bleed until-6MPa vacuum gets final product.After the exhaust steam vent sealing can be finished production process.
Such as Fig. 2, when glass outer tube 3 is comprised of two or two above axially-aligned, be added with H shape connector 7 (being equivalent to the opposite U-shaped connector of both direction) between adjacent two glass outer tubes 3, H shape connector 7 both sides are connected with respectively annular locking clamp 2, annular locking clamp 2 is enclosed within outside the glass outer tube 3, H shape connector 7 leaves the expansion clearance respectively and between glass flange 6 end faces of glass outer tube 3, is added with gasket seal 8 between H shape connector 7 and glass flange 6 sides.H shape connector 7 connects glass outer tube 3, can play and support fixing effect, makes whole device more firm.
Can daub into encapsulant in the screw thread of locking clamp 2 or H type connector 7 inside threads to improve sealing characteristics.Such as refractory seals glue flexible metal band without polar fibers etc.
Because not only structural strength is high, high temperature resistant, long service life to adopt mechanical seal.Cooling constantly produces expansibility and contractibility when heating up; connect the phenomenon that does not produce stress between first-class metalwork and the glass outer tube and make the fragmentation of glass outer tube; and technique is simple; scientific and reasonable; be convenient to the industrialization Assembling Production, sealing effectiveness is long-acting lasting, steady quality; stable performance because the existence of H type connector when long tube is connected more stable more firm can better the cover glass outer tube.
Claims (2)
1. high temperature straight-through solar collector tube mechanical seal device in a kind, comprise metal tube (5), metal tube (5) overcoat has glass outer tube (3), it is characterized in that: described glass outer tube (3) two ends have the glass flange (6) of outward flanging, cover has annular locking clamp (2) at glass outer tube two ends, locking clamp (2) and glass flange (6) near, be added with gasket seal (4) therebetween, outside locking clamp (2) and glass flange (6), be added with U-shaped connector (1), U-shaped connector (1) is threaded with locking clamp (2), leave the expansion clearance between U-shaped connector (1) and glass flange (6) end face, be added with gasket seal (8) between U-shaped connector (1) and glass flange (6) side.
2. middle high temperature straight-through solar collector tube mechanical seal device according to claim 1, it is characterized in that: described glass outer tube (3) is comprised of two or two above axially-aligned, be added with H shape connector (7) between adjacent two glass outer tubes (3), H shape connector (7) both sides are connected with respectively annular locking clamp (2), annular locking clamp (2) is enclosed within outside the glass outer tube (3), H shape connector (7) leaves the expansion clearance respectively and between glass flange (6) end face of glass outer tube (3), is added with gasket seal (8) between H shape connector (7) and glass flange (6) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000928 CN102135337B (en) | 2010-01-21 | 2010-01-21 | Mechanical sealing device for medium and high temperature straightway heat collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000928 CN102135337B (en) | 2010-01-21 | 2010-01-21 | Mechanical sealing device for medium and high temperature straightway heat collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102135337A CN102135337A (en) | 2011-07-27 |
| CN102135337B true CN102135337B (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010000928 Expired - Fee Related CN102135337B (en) | 2010-01-21 | 2010-01-21 | Mechanical sealing device for medium and high temperature straightway heat collecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102135337B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589168A (en) * | 2011-11-16 | 2012-07-18 | 张建城 | Line-focus solar heat collecting tube provided with hot-pressing sealing protection device |
| CN103626407B (en) * | 2013-12-06 | 2016-01-20 | 张曹 | Glass metal welded seal technique and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990431A (en) * | 1975-06-25 | 1976-11-09 | Ppg Industries, Inc. | Solar heat collector having a vapor barrier seal and method of making same |
| CN101270923A (en) * | 2008-03-11 | 2008-09-24 | 东南大学 | Vacuum heat collecting tube |
| CN101408350A (en) * | 2008-11-27 | 2009-04-15 | 浙江大学 | Coaxial sleeve tube U type thermal-collecting tube |
| CN201593881U (en) * | 2010-01-21 | 2010-09-29 | 淄博大运特工程材料科技有限公司 | Medium-high temperature straight-through solar collector tube mechanical seal device |
-
2010
- 2010-01-21 CN CN 201010000928 patent/CN102135337B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990431A (en) * | 1975-06-25 | 1976-11-09 | Ppg Industries, Inc. | Solar heat collector having a vapor barrier seal and method of making same |
| CN101270923A (en) * | 2008-03-11 | 2008-09-24 | 东南大学 | Vacuum heat collecting tube |
| CN101408350A (en) * | 2008-11-27 | 2009-04-15 | 浙江大学 | Coaxial sleeve tube U type thermal-collecting tube |
| CN201593881U (en) * | 2010-01-21 | 2010-09-29 | 淄博大运特工程材料科技有限公司 | Medium-high temperature straight-through solar collector tube mechanical seal device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-166709A 2005.06.23 |
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| Publication number | Publication date |
|---|---|
| CN102135337A (en) | 2011-07-27 |
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Address after: 255400 Shandong Linzi District, Zibo province Qi Ling Street Industrial Park Applicant after: Zibo Yunte Energy Technology Co., Ltd. Address before: 255400 Shandong Linzi District, Zibo province Qi Ling Street Industrial Park Applicant before: Zibo Dayun Special Engineering Materials Technology Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZIBO DAYUN SPECIAL ENGINEERING MATERIALS TECHNOLOGY CO., LTD. TO: ZIBO YUNTE ENERGY TECHNOLOGY CO., LTD. |
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Owner name: BEIJING DAYUN LONGTENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZIBO YUNTE ENERGY TECHNOLOGY CO., LTD. Effective date: 20150807 |
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Effective date of registration: 20150807 Address after: 102200 Beijing City, Changping District small town east village on the west side of the Loess room B No. 15 Patentee after: BEIJING DRAGON LUCK TECHNOLOGIES CO., LTD. Address before: 255400 Shandong Linzi District, Zibo province Qi Ling Street Industrial Park Patentee before: Zibo Yunte Energy Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |