CN102878365A - Sliding pipe gathering component - Google Patents
Sliding pipe gathering component Download PDFInfo
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- CN102878365A CN102878365A CN2012103626658A CN201210362665A CN102878365A CN 102878365 A CN102878365 A CN 102878365A CN 2012103626658 A CN2012103626658 A CN 2012103626658A CN 201210362665 A CN201210362665 A CN 201210362665A CN 102878365 A CN102878365 A CN 102878365A
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Abstract
The invention relates to a sliding pipe gathering component, and belongs to the technical field of fluid conveying pipelines. The component comprises a first metal pipe and a second metal pipe which are butted with each other, wherein one of the two metal pipes is provided with a butting flange edge, and the other metal pipe is provided with a butting external thread; locking nuts screwed with external threads are sleeved at butted joints of the two metal pipes; a second flange which is sealed in the radial direction is sleeved outside the first metal pipe; a first flange is arranged at one end, which is adjacent to the second metal pipe, of the second flange; a third flange is arranged at one end, which is far away from the second metal pipe, of the second flange; the first flange is sealed and welded with an inner hole of an inner barrel; a radial and axial sealing piece is arranged at a joint of the first flange and the second flange; and the first flange, the second flange and the third flange are fixedly connected with one another through axial fastening pieces. By the sliding pipe gathering component, the problem that the conventional detachable orifice structure cannot be reliably sealed under a working condition of ultrahigh temperature is solved; the sealing property of the assembled sliding pipe gathering component is guaranteed; and influence of thermal stress on sealing is avoided.
Description
Technical field
The present invention relates to a kind of slip header assembly, especially a kind of high temperature resistant detachable slip header assembly for superhigh temperature, vacuum and high-tension apparatus belongs to the fluid delivery pipeline technical field.
Background technique
Header assembly in the equipment such as existing heat exchange as shown in Figure 1, the steel pipe of a side (forging pipe) 1 and opposite side copper pipe 2 termination flange 1-1, the 2-1 by its junction is connected by fastening piece and docks the formation inner tube; Steel pipe 1 external welding expansion flange 3, and by expansion flange 3 and inner tube outward the joint flange 6 of inner core 5 terminations of jacketed 4 be connected by fastening piece and dock.During use, cooling water flows by inner tube and takes away the heat of high temperature media in the inner core.Facts have proved, there are the following problems for this existing structure: the termination flange fastener of steel pipe and copper pipe joint is exposed in the high temperature media, its heat can't be taken away by the cooling medium in the inner tube, in case temperature is higher, the sealability of this joint will can't guarantee because of the fastening effect power of fastening piece and be affected (to be restricted to 700 ℃ such as S316 high alloy double-screw bolt serviceability temperature, and allowable stress is 30MPa only in the time of 700 ℃, exceed this limit after, sealability can't guarantee).In addition, because cool off by air the chuck outside, therefore when heat-resisting medium temperature was too high, also there was above-mentioned Similar Problems in the joint of expansion flange and outer tube termination joint flange.
Summary of the invention
The object of the invention is to: the problem for above-mentioned prior art exists by architecture advances, proposes a kind of slip header assembly that also can guarantee reliable sealing in the high temperature media environment.
In order to reach above purpose, slip header assembly of the present invention comprises the first metal tube (forging pipe) and second metal tube (copper pipe) of mutual sealing docking, and described the second metal tube is arranged in inner core, and described the first metal tube extends inner core; One of described two metal tubes have the extended abutted flange of radial outward limit, and another has the docking outside thread; Described two metal tube joint covers have the locking nut that screws with described outside thread, and described locking nut has radial inward away from a described externally threaded end and extends the locking limit of blocking described flange edge; Described the first metal tube is set with the second flange of radial seal outward, and an end of contiguous the second metal tube of described the second flange is equipped with the first flange, and described the second flange is equipped with three-flange away from an end of the second metal tube; The endoporus seal welding of described the first flange and described inner core, described the first flange and the second flange apposition position are equipped with radially and axial seal, and described first, second, third flange is connected by axially fastening part.
Like this, because to axial displacement between the first metal tube and the flange, can automatically eliminate the stress that thermal distortion produces, therefore avoided prior art to be welded and fixed the unreliable problem of sealing that the location produces, and the fastening piece that is exposed in the inner core high temperature media is heated evenly, and can remain fit sealing; And the double seal that forms between the first flange and the second flange makes sealing effect better.
In a word, the invention solves conventional demountable tube mouth structure can't be under the superhigh temperature operating mode problem of reliable sealing, guaranteed that the sealing after the assembling also avoided the impact of thermal stress on sealing.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the embodiment of the invention one.
Embodiment
Embodiment one
The slip header assembly of present embodiment comprises the first metal tube 1 of mutual sealing docking as shown in Figure 2---steel is forged pipe and second metal tube 2---copper pipe.The first metal tube 1 is equipped with end-face seal ring 12 with the end face that docks of the second metal tube 2.The second metal tube 3 is connected as a single entity with the round case 2-3 with radial perforation array, and is arranged in inner core 5, the first metal tubes 1 and extends inner core 5 with justifying case.The steel of one of two metal tubes is forged pipe and is had the extended abutted flange of radial outward limit 1-1, and copper pipe then has docking outside thread 2-1.Two metal tube joint covers have the locking nut 7 that screws with outside thread 2-1, and this locking nut has the locking limit 7-1 that flange edge 1-1 is blocked in the radial inward extension away from the end of outside thread 2-1.Second flange 3 of the first metal tube 1 outer suit by O-ring seals 8 radial seals, an end of contiguous the second metal tube 2 of this second flange are equipped with the first flange 6, the second flanges 3 and away from an end of the second metal tube 2 three-flange 10 are housed.The first flange 6 and the second flange 2 apposition positions are shaped with inner bore chamfering, trapezoid cross section seal ring 9, the first flanges 10, the second flange 3, the three-flange 6 of realizing end face and radial seal wherein are housed axially fasten bolt 11 by one group and be connected.The endoporus seal welding (inner core has chuck outward) of the inner core 5 of the first flange 6 and jacketed 4, particularly, one end undergauge of the first flange 6 contiguous the second metal tubes 2 forms ladder, the endoporus seal welding of chuck 4 is at the place, large footpath of ladder, the endoporus seal welding of inner core 5 is at the path place of ladder, this structure particularly is fit to the arrangement of trapezoid cross section seal ring 9, because the inner bore chamfering cross section of the second flange 2 apposition positions is slightly less than trapezoid cross section seal ring 9, the axial pressure that fastening piece produces acts on and is broken down into the radial force that acts on the first metal tube 1 behind the trapezoid cross section seal ring 9 and can mainly is located bear by the large footpath of ladder, on inner core 5 basic not impacts, and the axial force that acts on the first flange 6 makes itself and O type circle 8 form double-deck radial seal, can effectively prevent from producing when the first metal tube from sliding leaking.The matching gap that steel is forged pipe and the first flange less than with the matching gap of the second flange, the matching gap that steel is forged pipe and the second flange less than with the matching gap of three-flange.
During work, flow into the flowing medium of steel forging pipe by after forging pipe, enter copper pipe and flow out from a plurality of radial perforations of circle case respectively, the realization shunting.The more original flange volume of locking nut obviously reduces, the edge heat can be taken away by managing interior cooling water, design temperature CLV ceiling limit value that can the decrease locking nut, even under the superhigh temperature operating mode, the temperature of locking nut can be not too high yet, and temperature is even, thereby has guaranteed the sealing of joint.
In addition, steel is forged pipe essence and has been consisted of " piston " structure, can relative the first flange endwisely slip, cancelled former welded structure, when the first flange, the second flange, three-flange compression, the trapezoid cross section seal ring can play the effect of radial seal end face seal simultaneously, has guaranteed the sealing effect of header under vacuum environment, especially high temperature condition.After screwing off locking nut, steel is forged pipe and can be extracted out from the container inner core, and is simple and quick, realizes quick detach.
Be summed up, present embodiment compared with prior art has following remarkable advantage:
1) steel is forged fit up gap between pipe and flange by gradually diminishing outward inwardly, not only is conducive to dismounting, and can avoids high temperature media that the second flange, three-flange are impacted, and has avoided flange distortion and the seal failure that causes.
2) flange adopts double sealing structure, and sealing effect is better.
Produced cooperation when 3) the steel slide design of forging pipe has been avoided assembling (if right-hand member heat exchanging tube position is fixed then existed between flange and the flange and cooperates in the prior art, can't guarantee sealing, heat exchanging tube can increase mouth of pipe place shell stress indirectly because of thermal expansion in the running simultaneously), can be used as free end and eliminate thermal stress to the impact of sealing place.
4) solve conventional demountable tube mouth structure and can't use problem under the superhigh temperature operating mode
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (5)
1. a slip header assembly comprises the first metal tube and the second metal tube that mutual sealing is docked, and described the second metal tube is arranged in inner core, and described the first metal tube extends inner core; It is characterized in that: one of described two metal tubes have the extended abutted flange of radial outward limit, and another has the docking outside thread; Described two metal tube joint covers have the locking nut that screws with described outside thread, and described locking nut has radial inward away from a described externally threaded end and extends the locking limit of blocking described flange edge; Described the first metal tube is set with the second flange of radial seal outward, and an end of contiguous the second metal tube of described the second flange is equipped with the first flange, and described the second flange is equipped with three-flange away from an end of the second metal tube; The endoporus seal welding of described the first flange and described inner core, described the first flange and the second flange apposition position are equipped with radially and axial seal, and described first, second, third flange is connected by axially fastening part.
2. slip header assembly according to claim 1, it is characterized in that: described inner core has chuck outward, one end undergauge of contiguous the second metal tube of described the first flange forms ladder, the endoporus seal welding of described chuck is at the place, large footpath of described ladder, and the endoporus seal welding of described inner core is at the path place of described ladder.
3. slip header assembly according to claim 2, it is characterized in that: described the first flange and the second flange apposition position are shaped with inner bore chamfering, wherein be equipped with realization radially with the trapezoid cross section seal ring of axial seal.
4. slip header assembly according to claim 3, it is characterized in that: described the first metal tube is equipped with end-face seal ring with the end face that docks of the second metal tube.
5. slip header assembly according to claim 4 is characterized in that: described the second metal tube is connected as a single entity with the round case with radial perforation array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362665.8A CN102878365B (en) | 2012-10-18 | 2012-10-18 | Sliding pipe gathering component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362665.8A CN102878365B (en) | 2012-10-18 | 2012-10-18 | Sliding pipe gathering component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878365A true CN102878365A (en) | 2013-01-16 |
| CN102878365B CN102878365B (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210362665.8A Active CN102878365B (en) | 2012-10-18 | 2012-10-18 | Sliding pipe gathering component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878365B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728224A (en) * | 2020-12-30 | 2021-04-30 | 北京航天益森风洞工程技术有限公司 | Cross-cabin sealing structure and equipment |
| CN115153367A (en) * | 2022-06-01 | 2022-10-11 | 北京享捷科技有限公司 | Butt joint structure, maintenance station and automatic sweeping and mopping device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835762Y (en) * | 2005-10-31 | 2006-11-08 | 许智远 | Ball type joint for high pressure single flow water mist fire suppression device |
| US20110012338A1 (en) * | 2008-03-25 | 2011-01-20 | Mitsubishi Heavy Industries, Ltd. | Flange connection structure |
| CN201748073U (en) * | 2010-07-14 | 2011-02-16 | 李良伟 | Double flange transmission joint |
| CN201954177U (en) * | 2011-02-28 | 2011-08-31 | 北京工业大学 | Self sealing compensation device of fluid conveying pipeline |
| CN202158292U (en) * | 2011-06-22 | 2012-03-07 | 中色科技股份有限公司 | Anti-loose hydraulic pipe connector |
| CN202327418U (en) * | 2011-12-01 | 2012-07-11 | 孟祥勇 | Pipe union |
-
2012
- 2012-10-18 CN CN201210362665.8A patent/CN102878365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835762Y (en) * | 2005-10-31 | 2006-11-08 | 许智远 | Ball type joint for high pressure single flow water mist fire suppression device |
| US20110012338A1 (en) * | 2008-03-25 | 2011-01-20 | Mitsubishi Heavy Industries, Ltd. | Flange connection structure |
| CN201748073U (en) * | 2010-07-14 | 2011-02-16 | 李良伟 | Double flange transmission joint |
| CN201954177U (en) * | 2011-02-28 | 2011-08-31 | 北京工业大学 | Self sealing compensation device of fluid conveying pipeline |
| CN202158292U (en) * | 2011-06-22 | 2012-03-07 | 中色科技股份有限公司 | Anti-loose hydraulic pipe connector |
| CN202327418U (en) * | 2011-12-01 | 2012-07-11 | 孟祥勇 | Pipe union |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728224A (en) * | 2020-12-30 | 2021-04-30 | 北京航天益森风洞工程技术有限公司 | Cross-cabin sealing structure and equipment |
| CN115153367A (en) * | 2022-06-01 | 2022-10-11 | 北京享捷科技有限公司 | Butt joint structure, maintenance station and automatic sweeping and mopping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102878365B (en) | 2015-01-14 |
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