CN104864222A - Underwater sealing structure of inner wall face of annular channel - Google Patents
Underwater sealing structure of inner wall face of annular channel Download PDFInfo
- Publication number
- CN104864222A CN104864222A CN201510261243.5A CN201510261243A CN104864222A CN 104864222 A CN104864222 A CN 104864222A CN 201510261243 A CN201510261243 A CN 201510261243A CN 104864222 A CN104864222 A CN 104864222A
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- CN
- China
- Prior art keywords
- annular
- wall
- ring
- seal ring
- sealing structure
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
Abstract
The invention relates to an underwater sealing structure of an inner wall face of an annular channel. The annular channel is composed of an annular inner wall and an annular outer wall arranged outside the annular inner wall in a sleeving mode. The underwater sealing structure comprises a seal ring, a driving mechanism and a locating device. The seal ring is used for being correspondingly matched with the inner ring of the annular outer wall and/or the outer ring of the annular inner wall. The driving mechanism is used for driving the seal ring to extend and deform in the radial direction. The locating device is used for locating the seal ring in the radial direction. According to the underwater sealing structure of the inner wall face of the annular channel, the driving mechanism drives the seal ring to extend and deform in the radial direction, the inner ring of the seal ring and the outer ring of the annular inner ring are made to be in close fit with each other, the outer ring of the seal ring and the inner ring of the annular outer wall are made to be in close fit with each other, after the seal ring extends in the radial direction, an annular channel between the inner ring of the annular outer wall and the outer ring of the annular inner wall which is concentric with the annular outer wall is completely sealed, the good sealing effect is achieved, and seal of an annular channel with uneven gaps is achieved.
Description
Technical field
The present invention relates to underwater sealing technology, more particularly, relate to the underwater sealing structure of a kind of annular pass internal face.
Background technique
In certain jacket maintenance process of deep-sea engineering field, the sealing between jacket arm and dry chamber relate to concentric columnar structured and columnar structured between sealing.The axle center that the distortion of jacket and the foozle of dry chamber result in the axle center of jacket arm and dry chamber pipe nipple is not exclusively concentric, and cylinder is uneven with the portion gap between cylinder, and this makes sealing more difficult.
Underwater sealing is in the past mainly concerned with the sealing between flanged surface and flanged surface, and by regulating flange bolt, the sealer between supported flange, to reach the effect of sealing.
Summary of the invention
The technical problem to be solved in the present invention is, provides the underwater sealing structure of a kind of annular pass internal face.
The technical solution adopted for the present invention to solve the technical problems is: the underwater sealing structure constructing a kind of annular pass internal face, annular pass is formed by mutually sheathed annular inner wall and annular outer wall, and described underwater sealing structure comprises for the seal ring of described annular outer wall inner ring and/or described annular inner wall outer ring corresponding matching, for ordering about the distortion of described seal ring circumferentially extending to ensure and the driving mechanism of described annular outer wall inner ring and/or described annular inner wall outer ring pressing sealing and the positioning device for carrying out axially locating to described seal ring.
Preferably, described positioning device is arranged on one end of described annular inner wall or described annular outer wall;
Mutually seal between the end of described positioning device and described annular inner wall or described annular outer wall, and described positioning device is provided with the sealing surface for coordinating with the inner ring or outer ring of described seal ring.
Preferably, described seal ring is provided with a seam disconnected, and is set to described annular inner wall outer peripheral surface to facilitate expansion cover; Or,
Described seal ring comprises circumferential segmentation and disconnects at least two the arc seal sections formed.
Preferably, described seal ring or described seal section are hollow cavity structure.
Preferably, the inner ring of described seal ring is provided with and circumferentially arranges rack structure; And/or,
The outer ring of described seal ring is provided with and circumferentially arranges rack structure.
Preferably, described positioning device comprises sealing flange, and described sealing flange comprises cylindrical body and is arranged on the annular flange sheet of described cylindrical body two opposite end;
A described flange plate coordinates with one end end face seal of described annular inner wall or described annular outer wall;
The described flange plate of two relative spacings and described cylindrical body form the mounting groove for described seal ring location and installation, and the side wall surface of the described cylindrical body that described mounting groove is corresponding forms described sealing surface.
Preferably, described seal ring or described seal section are provided with the pore with inner space, and described driving mechanism comprises the aerating and exhaust device be connected with described pore.
Preferably, described sealing flange comprises at least two arc flange section that circumferential segmentation disconnects formation.
Preferably, described positioning device comprises the bell mouth shape guide plate that the border, one end along described annular inner wall or described annular outer wall is arranged, one end of described guide plate and described annular inner wall or described annular outer wall are sealed and matched, the free end of described guide plate tilts away from described annular pass, and described guide plate forms described sealing surface with annular pass relative to the plane of inclination of side;
The inner ring of described seal ring or outer ring are provided with the plane of inclination corresponding matching sphenoid surface with described guide plate;
Described driving mechanism comprises connecting rod and annular pressing plate, one end of described connecting rod is connected with one end of described annular inner wall or described annular outer wall, described pressing plate can axially movably coordinate with the other end of described connecting rod, to clamp described seal ring with described guide plate, and extrude described seal ring circumferentially extending.
Preferably, described pressing plate comprises at least two arc pressuring plate sections that circumferential segmentation disconnects formation.
Implement the underwater sealing structure of annular pass of the present invention internal face, there is following beneficial effect: the present invention is after seal ring coordinates with the inner ring of annular outer wall and/or the outer ring of annular inner wall, the distortion of seal ring circumferentially extending is ordered about by driving mechanism, thus the inner ring of seal ring and the outer ring of annular inner wall are closely cooperated, and the outer ring of seal ring and the inner ring of annular outer wall are closely cooperated, can also by the distortion on annular outer wall inner ring and/or annular inner wall outer ring after seal ring stretches, the uneven surface location such as out-of-flatness fills up sealing, simultaneously, the whole circle in annular pass between the annular outer wall inner ring of decentraction and annular inner wall outer ring can also be sealed after circumferentially extending, reach good sealing effect, solve the sealing problem of uneven annular pass, gap.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the local section structural representation of the underwater sealing structure of annular pass internal face in the embodiment of the present invention;
Fig. 2 is the local section structural representation of the underwater sealing structure of annular pass internal face in other embodiments of the invention.
Embodiment
In order to there be understanding clearly to technical characteristics of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, annular pass A is formed by mutually sheathed annular inner wall 10 and annular outer wall 20, annular inner wall 10 can be formed by pipeline or column structure, annular outer wall 20 can be formed by pipeline, in the present embodiment, annular inner wall 10 is formed by jacket arm, and annular outer wall 20 is formed by columnar dry type storehouse pipe nipple.
The underwater sealing structure of the annular pass internal face in a preferred embodiment of the invention comprises for the seal ring 30 of annular outer wall 20 inner ring and annular inner wall 10 outer ring corresponding matching, for ordering about the distortion of seal ring 30 circumferentially extending to ensure and the driving mechanism 40 of annular outer wall 20 inner ring and annular inner wall 10 outer ring pressing sealing and the positioning device 50 for carrying out axially locating to seal ring 30.
The deformability characteristics of seal ring 30 can be relied on, order about seal ring 30 circumferentially extending by driving mechanism 40 to be out of shape, thus make the outer ring of seal ring 30 and inner ring press on annular outer wall 20 inner ring and annular inner wall 10 outer ring more closely, ensure that the sealing effect of annular pass, even if when annular outer wall 20 inner ring and annular inner wall 10 outer ring decentraction, still can to the whole circle sealing in annular pass after circumferentially extending distortion.Particularly seal ring 30 is after circumferentially extending distortion, and the distortion that can exist to annular outer wall 20 inner ring and annular inner wall 10 outer peripheral surface or out-of-flatness position extend, and carry out filling up sealing, ensure to cause leakage because of the distortion in the A of annular pass.In other embodiments, the circumferentially extending characteristic of seal ring 30 also can be relied on to seal annular outer wall 20 inner ring and annular inner wall 10 outer ring respectively.
Conveniently seal ring 30 encloses on annular inner wall 10 outer ring, and seal ring 30 is provided with a seam disconnected, and is set to annular inner wall 10 outer peripheral surface to facilitate expansion cover.Preferably, seal ring 30 comprises circumferential segmentation and disconnects two the arc seal sections formed, and in use, is mutually spliced to form whole circle seal ring 30, extensional deformation can be relied on to ensure sealing at binding site.In other embodiments, the quantity that seal ring 30 segmentation disconnects also can be determined according to concrete size.
In certain embodiments, in order to ensure the amplitude that seal ring 30 is out of shape at circumferentially extending, hollow cavity structure made by seal ring 30, and seal ring 30 is more easily out of shape.Certainly, when segmentation disconnects, each seal section also makes hollow cavity structure.Preferably, seal ring 30 or seal section are provided with the pore 31 with inner space, and driving mechanism 40 comprises the aerating and exhaust device be connected with pore 31, aerating and exhaust device is inflated, seal ring 30 radial expansion is stretched and is sealed, when not needing sealing, and taking-up that seal ring 30 is exitted.
In certain embodiments, in order to can make the outer ring of seal ring 30 and inner ring better and annular outer wall 20 inner ring, annular inner wall 10 outer ring be sealed and matched, the outer ring and inner ring of seal ring 30 are respectively equipped with tooth bar 32 structure is circumferentially set, tooth bar 32 structure can increase the stretching, extension deformation quantity of seal ring 30 Internal and external cycle, simultaneously, multiple tooth bar 32 is equivalent to multiple small sealing ring 30, can carry out deformable seal respectively, add sealing effect to corresponding position.
In certain embodiments, on one end that positioning device 50 is arranged on annular outer wall 20 and mutually seal between the end of annular outer wall 20, and positioning device 50 is provided with the sealing surface for coordinating with the inner ring or outer ring of seal ring 30.In other embodiments, positioning device 50 also can be arranged on one end of annular inner wall 10, and and mutually seals between the end of annular inner wall 10.
Positioning device 50 comprises sealing flange 51, and sealing flange 51 comprises cylindrical body 511 and is arranged on the annular flange sheet 512 of cylindrical body 511 liang of opposite ends.Arrange packing ring 52 etc. between a flange plate 512 and one end end face of annular outer wall 20 to be sealed and matched, certainly, also by lock sealing.At sealing flange 51 with the end face position fixing process of annular outer wall 20, the inner ring of sealing flange 51 can carry out preliminary location to annular inner walls 10 such as jacket arms, prevents eccentric excessive, is beneficial to after seal ring 30 extends and seals.
The flange plate 512 of two relative spacings and cylindrical body 511 form the mounting groove 513 for seal ring 30 location and installation, and the side wall surface of the cylindrical body 511 of mounting groove 513 correspondence forms sealing surface.Mounting groove 513 is arranged towards annular inner wall 10, after seal ring 30 is installed, the inner ring of seal ring 30 coordinates with annular inner wall 10 outer ring, the outer ring of seal ring 30 coordinates with sealing surface, reach the effect that annular pass A is sealed, meanwhile, mounting groove 513 positions seal ring 30 in the axial direction, prevents the axial off normal of hydraulic shock seal ring 30 in the A of annular pass.Interacvity air-filling in seal ring 30, make the inner ring of seal ring 30 to annular inner wall 10 circumferentially extending, and being constantly filled with along with gas, distortion, the out-of-flatness position of seal ring 30 pairs of annular inner wall 10 outer rings are filled, allow better tightness between the inner ring of seal ring 30 and annular inner wall 10 outer ring, meanwhile, the border of the annular pass A that the annular inner wall 10 of decentraction and annular inner wall 10 also can be allowed to be formed all can seal.In other embodiments, flange plate 512 also can coordinate with one end end face of annular inner wall 10, and the mounting groove 513 of sealing flange 51 is arranged towards annular outer wall 20.
Conveniently inflation/deflation, cylindrical body 511 is provided with the through hole 514 corresponding with pore 31 position, to facilitate the placement of air valve.Meanwhile, the conveniently dismounting of sealing flange 51, sealing flange 51 comprises circumferential segmentation and disconnects two the arc flange section formed, and mutually splices in use, goes back the convenient splicing observing seal section of space set and seal situation between two adjacent flange section.The quantity that sealing flange 51 segmentation disconnects also can be determined according to concrete size.
As shown in Figure 2, in other embodiments of the invention, the bell mouth shape guide plate 53 that the border, one end that positioning device 50 also can comprise annularly outer wall 20 is arranged.One end and the annular outer wall 20 of guide plate 53 are sealed and matched, preferably, guide plate 53 and annular outer wall 20, as integrative-structure, ensure sealing, the free end of guide plate 53 tilts away from annular pass A, and the plane of inclination of guide plate 53 side relative to annular pass A forms sealing surface.The inner ring of seal ring 30 coordinates with annular inner wall 10 outer ring, and seal ring 30 outer ring is provided with the plane of inclination corresponding matching sphenoid surface with guide plate 53, and the outer ring sphenoid surface of seal ring 30 and sealing surface close fit, realize the axially locating to seal ring 30.
Seal ring 30 in the present embodiment is entity structure, certainly, also the pore 31 of the seal ring 30 of cavity body structure can be closed, by the extrusion-deformation circumferentially extending of driving mechanism 40.
Driving mechanism 40 comprises connecting rod 41 and annular pressing plate 42, one end of connecting rod 41 is connected with one end of annular outer wall 20, pressing plate 42 can axially movably coordinate with the other end of connecting rod 41, seal ring 30 is clamped guarantee and locates completely in the axial direction by pressing plate 42 and guide plate 53, prevent the axial off normal of hydraulic shock seal ring 30 in the A of annular pass, move and guide plate 53 acting in conjunction crush seal circle 30 circumferentially extending to guide plate 53 additionally by pressing plate 42.
Further, pressing plate 42 comprises circumferential segmentation and disconnects two the arc pressuring plate sections formed, and facilitates the dismounting of pressing plate 42.When seal ring 30 segmentation disconnects, the gap between spaced two pressing plate 42 sections also can be used for the sealing of observation seal section in conjunction with situation.In other embodiments, the quantity that pressing plate 42 segmentation disconnects also can be determined according to concrete size.
Certainly, composition graphs 2, in other embodiments, the bell mouth shape guide plate 53 that the border, one end that positioning device 50 also can comprise annularly inwall 10 is arranged, one end and the annular inner wall 10 of guide plate 53 are sealed and matched, the free end of guide plate 53 tilts away from annular pass A, and the plane of inclination of guide plate 53 side relative to annular pass A forms sealing surface, and the inner ring of seal ring 30 is provided with the plane of inclination corresponding matching sphenoid surface with guide plate 53.Corresponding, the connecting rod 41 of driving mechanism 40 is connected with one end of annular inner wall 10.
Understandably, above-mentioned each technical characteristics can combination in any use and unrestricted.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the underwater sealing structure of an annular pass internal face, it is characterized in that, annular pass (A) is formed by mutually sheathed annular inner wall (10) and annular outer wall (20), described underwater sealing structure comprises for the seal ring (30) with described annular outer wall (20) inner ring and/or described annular inner wall (10) outer ring corresponding matching, be out of shape to ensure and the driving mechanism (40) of described annular outer wall (20) inner ring and/or described annular inner wall (10) outer ring pressing sealing for ordering about described seal ring (30) circumferentially extending, and for carrying out the positioning device (50) of axially locating to described seal ring (30).
2. the underwater sealing structure of annular pass according to claim 1 internal face, is characterized in that, described positioning device (50) is arranged on one end of described annular inner wall (10) or described annular outer wall (20);
Mutually seal between the end of described positioning device (50) and described annular inner wall (10) or described annular outer wall (20), and described positioning device (50) is provided with the sealing surface for coordinating with the inner ring or outer ring of described seal ring (30).
3. the underwater sealing structure of annular pass according to claim 2 internal face, is characterized in that, described seal ring (30) is provided with a seam disconnected, and is set to described annular inner wall (10) outer peripheral surface to facilitate expansion cover; Or,
Described seal ring (30) comprises circumferential segmentation and disconnects at least two the arc seal sections formed.
4. the underwater sealing structure of annular pass according to claim 3 internal face, is characterized in that, described seal ring (30) or described seal section are hollow cavity structure.
5. the underwater sealing structure of annular pass according to claim 1 internal face, is characterized in that, the inner ring of described seal ring (30) is provided with and circumferentially arranges tooth bar (32) structure; And/or,
The outer ring of described seal ring (30) is provided with and circumferentially arranges tooth bar (32) structure.
6. the underwater sealing structure of the annular pass internal face according to any one of claim 3 to 5, it is characterized in that, described positioning device (50) comprises sealing flange (51), and described sealing flange (51) comprises cylindrical body (511) and is arranged on the annular flange sheet (512) of described cylindrical body (511) two opposite end;
A described flange plate (512) coordinates with one end end face seal of described annular inner wall (10) or described annular outer wall (20);
The described flange plate (512) of two relative spacings and described cylindrical body (511) form the mounting groove (513) for described seal ring (30) location and installation, and the side wall surface of the described cylindrical body (511) that described mounting groove (513) is corresponding forms described sealing surface.
7. the underwater sealing structure of annular pass according to claim 6 internal face, it is characterized in that, described seal ring (30) or described seal section are provided with and the pore of inner space (31), and described driving mechanism (40) comprises the aerating and exhaust device be connected with described pore (31).
8. the underwater sealing structure of annular pass according to claim 6 internal face, is characterized in that, described sealing flange (51) comprises circumferential segmentation and disconnects at least two the arc flange section formed.
9. the underwater sealing structure of the annular pass internal face according to any one of claim 3 to 5, it is characterized in that, described positioning device (50) comprises the bell mouth shape guide plate (53) that the border, one end along described annular inner wall (10) or described annular outer wall (20) is arranged, one end of described guide plate (53) and described annular inner wall (10) or described annular outer wall (20) are sealed and matched, the free end of described guide plate (53) tilts away from described annular pass (A), described guide plate (53) forms described sealing surface with the plane of inclination of annular pass (A) relative side,
The inner ring of described seal ring (30) or outer ring are provided with the plane of inclination corresponding matching sphenoid surface with described guide plate (53);
Described driving mechanism (40) comprises connecting rod (41) and annular pressing plate (42), one end of described connecting rod (41) is connected with one end of described annular inner wall (10) or described annular outer wall (20), described pressing plate (42) can axially movably coordinate with the other end of described connecting rod (41), to clamp described seal ring (30) with described guide plate (53), and extrude described seal ring (30) circumferentially extending.
10. the underwater sealing structure of annular pass according to claim 9 internal face, is characterized in that, described pressing plate (42) comprises circumferential segmentation and disconnects at least two the arc pressuring plate sections formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261243.5A CN104864222A (en) | 2015-05-20 | 2015-05-20 | Underwater sealing structure of inner wall face of annular channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261243.5A CN104864222A (en) | 2015-05-20 | 2015-05-20 | Underwater sealing structure of inner wall face of annular channel |
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| Publication Number | Publication Date |
|---|---|
| CN104864222A true CN104864222A (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261243.5A Pending CN104864222A (en) | 2015-05-20 | 2015-05-20 | Underwater sealing structure of inner wall face of annular channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465517A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Inflation sealing device |
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|---|---|---|---|---|
| US5634671A (en) * | 1994-08-01 | 1997-06-03 | Dril-Quip, Inc. | Riser connector |
| CN202001729U (en) * | 2010-12-09 | 2011-10-05 | 天津市禾厘油气技术有限公司 | Underwater dry type maintenance working chamber for shallow water areas |
| CN104006216A (en) * | 2013-02-27 | 2014-08-27 | 中国海洋石油总公司 | Offshore platform crude oil riser maintenance and replacement method and device |
| WO2014174244A1 (en) * | 2013-04-24 | 2014-10-30 | Wellstream International Limited | Seal ring element |
| CN204226651U (en) * | 2014-11-20 | 2015-03-25 | 九江翔升造船有限公司 | A kind of ship stern seal arrangement |
-
2015
- 2015-05-20 CN CN201510261243.5A patent/CN104864222A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634671A (en) * | 1994-08-01 | 1997-06-03 | Dril-Quip, Inc. | Riser connector |
| CN202001729U (en) * | 2010-12-09 | 2011-10-05 | 天津市禾厘油气技术有限公司 | Underwater dry type maintenance working chamber for shallow water areas |
| CN104006216A (en) * | 2013-02-27 | 2014-08-27 | 中国海洋石油总公司 | Offshore platform crude oil riser maintenance and replacement method and device |
| WO2014174244A1 (en) * | 2013-04-24 | 2014-10-30 | Wellstream International Limited | Seal ring element |
| CN204226651U (en) * | 2014-11-20 | 2015-03-25 | 九江翔升造船有限公司 | A kind of ship stern seal arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465517A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Inflation sealing device |
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Application publication date: 20150826 |