CN204226937U - There is the hot high-temperature wearable expansion joint making sleeve pipe up - Google Patents
There is the hot high-temperature wearable expansion joint making sleeve pipe up Download PDFInfo
- Publication number
- CN204226937U CN204226937U CN201420612841.3U CN201420612841U CN204226937U CN 204226937 U CN204226937 U CN 204226937U CN 201420612841 U CN201420612841 U CN 201420612841U CN 204226937 U CN204226937 U CN 204226937U
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- China
- Prior art keywords
- inner sleeve
- expansion joint
- sleeve
- wear
- bellows
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Abstract
The utility model discloses and a kind of there is the hot high-temperature wearable expansion joint making sleeve pipe up, comprise bellows, all adapter is fixedly connected with at the two ends of bellows, the pipe internal fixtion of adapter is provided with ring baffle, the outer sleeve be mutually slidably socketed and inner sleeve is provided with in the tube chamber of described bellows, this outer sleeve is fixedly connected with a ring baffle, and inner sleeve is fixedly connected with another ring baffle; Insulation filler is filled with in the space that bellows, outer sleeve, inner sleeve and ring baffle will surround; The inwall of described inner sleeve is provided with Wear-resistant heat insulation layer; Combustible filler is filled with between the external part of inner sleeve and Wear-resistant heat insulation layer and ring baffle.Seal ring is provided with actively between described outer sleeve inner wall and inner sleeve outer wall.This expansion joint can not only the hot elongation of effective compensation pipeline, and have good high temperature resistant, resistance to wear, corrosion resistant technical performance, be widely used in the conveyance conduit containing powder, particulate matter high-temperature gas.
Description
Technical field
The utility model relates to a kind of expansion joint with bellows, particularly relates to the expansion joint be connected in the hot-gas channel of conveying containing powder, particulate matter.
Background technique
Expanding with heat and contract with cold of pipeline can produce thermal stress and push-pull effort on its tube wall and pipeline, in order to reduce and eliminate the extruding thrust of tube wall stress and pipeline enclosure, pipeline all needs to fill an expansion joint every a segment distance, to compensate the dilatation that pipeline produces because of temperature variation.Due to bellows expansion joint compact structure, saving space, be convenient to standardized production manufacture and be widely used.
A large amount of conveyance conduit using conveying to contain the high-temperature gas such as powder, particulate matter in the industrial fields such as petrochemical industry, electric power, metallurgy, building materials and nuclear power, as carried out gas pipeline etc. in desulphurization denitration environmental purification processing system to industrial tail gas.In these high-temperature gas transmission pipelines, the a large amount of axial elongations produced from normal temperature to high temperature except gas pipeline are to except the huge push effect of expansion joint, powder in air-flow and particulate matter also exist serious interaction effect of washing away and wear and tear to tube wall, especially in expansion joint position due to the change of line size and structure, the eddy current that high temperature gas flow produces aggravates washing away and abrasive action expansion joint inwall, contains a large amount of high temperature corrosion materials in high-temperature gas toward contact simultaneously.Therefore the expansion joint be operated in above-mentioned rugged environment is easy to occur leakage failure, become the weak link in whole gas transmission system, even if adopt corrugated stainless steel tubing expansion joint or the bellows expansion joint with inwall composite bed, its leakage failure accident also can often occur.The leakage of high-temperature gas not only affects the safe and reliable operation of whole gas transmission system, and can bring severe contamination to environment, and the expansion joint of existing structure also exists heat-shielding performance difference simultaneously, and heat energy distribution loss is serious, is unfavorable for effective utilization of waste heat.Therefore, how to solve hot-gas channel expansion joint because washing away, wearing and tearing, the leakage problem that causes of the factor such as high temperature corrosion, become practical problem in the urgent need to address in high-temperature pipe engineering, there is significant engineering significance and Technological Economy is worth.
Model utility content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of high temperature resistant antiwear, and the hot elongation of energy effective compensation pipeline has the hot high-temperature wearable expansion joint making sleeve pipe up.
In order to solve the problems of the technologies described above, of the present utility model have the hot high-temperature wearable expansion joint making sleeve pipe up, comprise bellows, all adapter is fixedly connected with at the two ends of bellows, the pipe internal fixtion of adapter is provided with ring baffle, in the tube chamber of described bellows, be provided with the outer sleeve be mutually slidably socketed and inner sleeve, this outer sleeve is fixedly connected with a ring baffle, and inner sleeve is fixedly connected with another ring baffle; Insulation filler is filled with in the space that bellows, outer sleeve, inner sleeve and ring baffle will surround; The inwall of described inner sleeve is provided with Wear-resistant heat insulation layer; Combustible filler is filled with between the external part of inner sleeve and Wear-resistant heat insulation layer and ring baffle.
In said structure, owing to being provided with the telescopic joint be made up of the inside and outside sleeve pipe be mutually socketed in the tube chamber of bellows, thus the pipeline extension that compensate for Yin Wendu well and produce distortion, especially when gas pipeline conveying high-temperature gas, the axial elongation of pipeline is absorbed by this structure compensation, avoids the generation of tube wall stress and pipeline pushing force.Again owing to being filled with insulation packing layer in bellows, telescopic joint and the space that surrounds of two ring baffles thereof, can effectively block distributing of high-temperature gas heat, ensure that effective utilization of gas heat energy, and do not affect the distortion of expansion joint axial stretching.Also owing to being provided with Wear-resistant heat insulation layer on the inner tubal wall of inner sleeve, the inside liner that this structure is formed, not only make expansion joint gas transmission tube wall have high high temperature resistance to impact, the combination property of resistance to powder, particulate matter erosive wear, and make the erosion of the energy-conservation etchant gas of effectively resisting of expansion, long service life, uses more safe and reliable.More due to the external part of inner sleeve and Wear-resistant heat insulation layer is filled with can right filler, when gas pipeline and expansion joint are at conveying high-temperature gas, red-hot air-flow makes combustible filler burn or charing on the one hand, gap space is there is after burning, high temperature gas flow also makes pipeline be heated and occur axial elongation on the other hand, the gap space after filling into burning is filled in this elongation just at the right time, and inner sleeve and Wear-resistant heat insulation layer front-end face and ring baffle side are fitted, make the gap space after combustible filler burning completely up, define the high-temperature corrosion resistance be connected mutually with gas pipeline inwall, wear-resistant expansion joint tube wall.
A kind of preferred implementation of the present utility model, is provided with seal ring actively between described outer sleeve inner wall and inner sleeve outer wall.This sealing structure is effective, is convenient to manufacture produce and installation and maintenance.
Another preferred implementation of the present utility model, described combustible filler is papery packed layer.Papery packed layer combustibility is good, with low cost.
Another preferred implementation of the utility model, described Wear-resistant heat insulation layer comprises the hexsteel be welded on inner sleeve tube wall, and this hexsteel has been built Wear-resistant heat insulation aggregate layer.Described Wear-resistant heat insulation aggregate layer is wear-resisting cement LIFT.Hexsteel has the functions such as high temperature resistant, fire-resistant, anticorrosion, tube wall welds the anchoring ability that hexsteel effectively enhances Wear-resistant heat insulation aggregate layer, makes it more firm, and wear-resisting cement LIFT, not only build conveniently, and high temperature resistant excellent with wear resistance.
Accompanying drawing explanation
Fig. 1 is that the utility model has the hot cross-sectional structure schematic diagram making a kind of embodiment of high-temperature wearable expansion joint of sleeve pipe up.
In figure, 1-adapter, 2-ring baffle, 3-combustible filler, 4-insulation filler, 5-bellows, 6-outer sleeve, 7-seal ring, 8-inner sleeve, 9-Wear-resistant heat insulation layer.
Embodiment
Hotly make up in the high-temperature wearable expansion joint of sleeve pipe having shown in Fig. 1, bellows 5 is metal bellows, and the waveform of this bellows both can be annular, also can be helical structure.The two ends of bellows 5 are respectively welded with an adapter 1, and this adapter 1 is metal circular tube, in the tube chamber of each adapter 1, be all fixedly installed a ring baffle 2, with the sheet plectane of through hole centered by ring baffle 2.The outer sleeve 6 and inner sleeve 8 that are mutually slidably socketed is provided with in the tube chamber of bellows 5, the external part of outer sleeve 6 can axially movably be socketed on the external part of inner sleeve 8, is provided with movable seal ring 7 between outer sleeve 6 inwall and inner sleeve 8 outer wall of this external part.Be fixedly connected on corresponding ring baffle 2 at the other end that outer sleeve 6 is relative with external part, the other end of inner sleeve 8 is then fixedly connected on another corresponding ring baffle 2.At the inner tubal wall of bellows 5, outer sleeve 6, inner sleeve 8 and two panels ring baffle 2 surround in space and be filled with insulation filler 4, this insulation filler 4 adopts ceramic fiber or aluminosilicate material, also can be other inorganic or organic heat-insulating thermal-protective materials accordingly.On the inner tubal wall that inner sleeve 8 is warm, be welded with conventional hexsteel, hexsteel is built the wear-resisting cement layer as Wear-resistant heat insulation aggregate, and its switching performance is good, not easy to crackly comes off.In expansion joint of the present utility model, inner sleeve 8 and be filled with combustible filler 3 between Wear-resistant heat insulation layer 9 external part and corresponding ring baffle 2 under original state, this combustible filler 3 is papery packed layer, also can be the packed layer that other inflammable matters are formed.When gas pipeline passes to high-temperature gas, combustible filler 3 is burned and form a gap space, the pipeline now extended inserts this gap space just at the right time along axial length, and inner sleeve 8 and Wear-resistant heat insulation layer 9 external part and baffle plate side are fitted, gap space is made up, and pipeline is connected mutually with the inwall of expansion joint.
Claims (6)
1. one kind has the hot high-temperature wearable expansion joint making sleeve pipe up, comprise bellows (5), adapter (1) is all fixedly connected with at the two ends of bellows (5), the pipe internal fixtion of adapter (1) is provided with ring baffle (2), it is characterized in that: in the tube chamber of described bellows (5), be provided with the outer sleeve (6) and inner sleeve (8) that are mutually slidably socketed, this outer sleeve (6) is fixedly connected with a ring baffle (2), and inner sleeve (8) is fixedly connected with another ring baffle (2); Insulation filler (4) is filled with in the space that bellows (5), outer sleeve (6), inner sleeve (8) and ring baffle (2) will surround; The inwall of described inner sleeve (8) is provided with Wear-resistant heat insulation layer (9); Combustible filler (3) is filled with between the external part of inner sleeve (8) and Wear-resistant heat insulation layer (9) and ring baffle (2).
2. according to claim 1 have the hot high-temperature wearable expansion joint making sleeve pipe up, it is characterized in that: between described outer sleeve (6) inwall and inner sleeve (8) outer wall, be provided with seal ring (7) actively.
3. according to claim 1 have the hot high-temperature wearable expansion joint making sleeve pipe up, it is characterized in that: described combustible filler (3) is papery packed layer.
4. according to claim 1 have the hot high-temperature wearable expansion joint making sleeve pipe up, it is characterized in that: described Wear-resistant heat insulation layer (9) comprises the hexsteel be welded on inner sleeve (8) tube wall, and this hexsteel has been built Wear-resistant heat insulation aggregate layer.
5. according to claim 4 have the hot high-temperature wearable expansion joint making sleeve pipe up, it is characterized in that: described Wear-resistant heat insulation aggregate layer is wear-resisting cement LIFT.
6. according to any one of claim 1-5, there is the hot high-temperature wearable expansion joint making sleeve pipe up, it is characterized in that: the waveform of described bellows (5) is annular or spirality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612841.3U CN204226937U (en) | 2014-10-23 | 2014-10-23 | There is the hot high-temperature wearable expansion joint making sleeve pipe up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612841.3U CN204226937U (en) | 2014-10-23 | 2014-10-23 | There is the hot high-temperature wearable expansion joint making sleeve pipe up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226937U true CN204226937U (en) | 2015-03-25 |
Family
ID=52925034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612841.3U Expired - Fee Related CN204226937U (en) | 2014-10-23 | 2014-10-23 | There is the hot high-temperature wearable expansion joint making sleeve pipe up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485463A (en) * | 2015-12-18 | 2016-04-13 | 贵州天福化工有限责任公司 | Air deflector structure for high-temperature expansion compensator |
| CN109751472A (en) * | 2019-01-28 | 2019-05-14 | 秦皇岛市泰德管业科技有限公司 | A kind of high temperature high voltage resistant flexibility heat insulation structural and expansion joint |
-
2014
- 2014-10-23 CN CN201420612841.3U patent/CN204226937U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485463A (en) * | 2015-12-18 | 2016-04-13 | 贵州天福化工有限责任公司 | Air deflector structure for high-temperature expansion compensator |
| CN109751472A (en) * | 2019-01-28 | 2019-05-14 | 秦皇岛市泰德管业科技有限公司 | A kind of high temperature high voltage resistant flexibility heat insulation structural and expansion joint |
| CN109751472B (en) * | 2019-01-28 | 2024-03-15 | 秦皇岛市泰德管业科技有限公司 | High-temperature-resistant high-pressure-resistant flexible heat insulation structure and expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20201023 |