CN113914830A - High temperature resistant flexible joint of marine riser - Google Patents
High temperature resistant flexible joint of marine riser Download PDFInfo
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- CN113914830A CN113914830A CN202111361645.4A CN202111361645A CN113914830A CN 113914830 A CN113914830 A CN 113914830A CN 202111361645 A CN202111361645 A CN 202111361645A CN 113914830 A CN113914830 A CN 113914830A
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- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
- E21B43/0107—Connecting of flow lines to offshore structures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a high-temperature-resistant flexible joint of an ocean riser, which can meet the use requirements of a swing angle, high-temperature liquid conveying and the like and has high reliability. The flexible joint adopts a structural form that two groups of joint components are symmetrically arranged up and down, when the joint is subjected to axial tension and compression loads, the elastic element can be ensured to be in a compression state, the axial bearing capacity of the joint is improved, and the service life of the joint is prolonged; on the premise of not increasing the outer diameter of the joint, the maximum allowable swing angle of the joint is effectively improved, so that the joint can be used under severe offshore working conditions.
Description
Technical Field
The invention relates to a flexible joint, in particular to a high-temperature-resistant flexible joint of an ocean riser.
Background
In an ocean underwater resource exploration and exploitation system, a riser system is used as a connecting channel of an above-water platform and underwater equipment and is a key component of an underwater production system, and a deep water riser flexible joint is a key component for connecting the riser system and a floating platform.
The fatigue test method and device for the underwater flexible device disclosed in CN104483117B and the bending and loading combined test device for the underwater flexible joint disclosed in CN207557006U are all ocean riser flexible joint test device patents applied by Bao chicken petroleum machinery Co., Ltd, and the design of test equipment and test method is carried out based on the most common existing ocean riser flexible joint structure, so that the performance test requirements of a prototype test, factory detection and the like of the joint can be met.
GB2190970A "Flexible joint" by Dunlop, uk describes a Flexible joint for use in fluid conduits, the main structural components of which include laminated rubber joints, spherical joints and bellows structures. The laminated rubber joint mainly provides a return moment and damping, so that the connecting pipe can swing relatively in a certain range and return after the load disappears; the spherical joint prevents the laminated rubber joint from bearing extra tension, avoids the damage of the rubber joint, prolongs the service life and the reliability, and provides a certain sealing function; the bellows separates interior, outer working medium, avoids external environment to corrode the joint and causes the work inefficacy. The flexible joint structure of the marine riser adopts similar design.
US7341283B2 "High Temperature Flexible Pipe Joint" of american oil state corporation describes a High Temperature resistant marine riser Flexible Joint, which uses a low thermal conductivity material to separate the High Temperature liquid from the laminated rubber Joint, and uses a rubber material with better High Temperature performance, and uses a corrugated Pipe and liquid around the Joint to perform sufficient heat dissipation. However, the design has a small swing angle, a complex heat dissipation structure and difficult maintenance, and is not beneficial to long-time use.
In the structure of the existing marine riser flexible joint, a series of problems of small swing angle, complex heat dissipation structure, complex processing technology, high cost and the like generally exist. In order to widen the application range of the marine riser flexible joint and meet the application requirements of large swing angle, high-temperature liquid transportation and the like, the novel design of the marine riser flexible joint structure is required to be carried out.
Disclosure of Invention
In view of this, the invention provides a high temperature resistant flexible joint for an ocean riser, which can meet the use requirements of a swing angle, high temperature liquid transportation and the like and has high reliability.
The high-temperature-resistant marine riser flexible joint comprises a shell and two joint assemblies which are symmetrically arranged in the shell from top to bottom;
the joint assembly includes: the device comprises a movable body, an elastic element, a supporting ball head and a corrugated pipe; the outer side of the movable body is connected with the shell through the elastic element, and the inner side of the movable body is matched with the supporting ball head to form a ball joint; the swing centers of the movable body and the elastic element are consistent;
a sliding pair is formed between the supporting ball heads of the two joint components and can relatively move for a set distance along the axial direction;
the outer part of the supporting ball head positioned between the two movable bodies is sealed by the corrugated pipe;
a sliding pair is formed between the joint component and the shell, and the joint component and the shell are prevented from being turned over relatively.
As a preferable mode of the present invention, a spring is installed between the two joint assembly support bulbs in the moving pair direction, and the spring is in a pre-pressing state, so that the support bulbs and the movable body are tightly pressed against each other.
As a preferable mode of the present invention, the heat dissipation holes are distributed on the housing to form an open heat dissipation structure.
As a preferred mode of the present invention, the elastic element is formed by sequentially laminating a reinforcement and a rubber layer in a radial direction, and the innermost side and the outermost side of the elastic element are both rubber layers; and corrosion-resistant coating layers are arranged on two end faces of the elastic element.
As a preferred mode of the present invention, the housing includes: an upper connecting flange, a lower connecting flange and a middle plate; the upper connecting flange and the lower connecting flange are coaxially opposite and are fixedly connected with the middle plate respectively.
As a preferable mode of the present invention, the circumferential surfaces of the upper connecting flange and the lower connecting flange are provided with two or more heat dissipation holes.
As a preferable mode of the present invention, the movable body includes a connection pipe, a heat insulating layer, and a metal liner;
one end of the connecting pipe is of a hemispherical shell structure and is used for being matched with the supporting ball head to form a ball joint; the heat insulation layer and the metal lining are sequentially arranged on the inner surface of the hemispherical shell structure of the connecting pipe from inside to outside.
In a preferred embodiment of the present invention, the bellows is filled with an incompressible high boiling point liquid.
As a preferred mode of the invention, in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball head, and the supporting ball head in the lower joint assembly is a lower supporting ball head;
the upper support ball head and the lower support ball head are both provided with hemispherical ball heads and hollow cylindrical structures connected with the ball heads; the cylindrical structure of the upper supporting ball head coaxially extends into the hollow cylindrical structure of the lower supporting ball head, so that a sliding pair is formed between the upper supporting ball head and the lower supporting ball head through cylindrical surface matching.
As a preferred mode of the invention, in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball, and the supporting ball head in the lower joint assembly is a lower supporting ball head;
the upper support ball head and the lower support ball head are both provided with hemispherical ball heads and hollow cylindrical structures connected with the ball heads; the cylindrical structure of the upper support ball head coaxially extends into the hollow cylindrical structure of the lower support ball head, so that a moving pair is formed between the upper support ball head and the lower support ball head through cylindrical surface matching;
the spring suit is in go up support bulb cylindricality structure and lie in the outer part of lower support bulb, the one end of spring with go up support bulb terminal surface and contradict continuously, the other end with lower support bulb cylindricality structure terminal surface is contradicted continuously.
As a preferred mode of the invention, in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball head, and the supporting ball head in the lower joint assembly is a lower supporting ball head;
the upper support ball head and the lower support ball head are both provided with hemispherical ball heads and hollow cylindrical structures connected with the ball heads; the cylindrical structure of the upper support ball head coaxially extends into the hollow cylindrical structure of the lower support ball head, so that a moving pair is formed between the upper support ball head and the lower support ball head through cylindrical surface matching;
the middle plate is sleeved outside the cylindrical structure of the lower support ball head through a center hole and forms a moving pair with the lower support ball head through cylindrical surface matching.
In a preferred embodiment of the present invention, a sealing member is disposed between the movable body and the support ball.
Has the advantages that:
(1) the flexible joint adopts a structural form that two groups of joint components are symmetrically arranged up and down, when the joint is subjected to axial tension and compression loads, the elastic element can be ensured to be in a compression state, the axial bearing capacity of the joint is improved, and the service life of the joint is prolonged; on the premise of not increasing the outer diameter of the joint, the maximum allowable swing angle of the joint is effectively improved, so that the joint can be used under severe offshore working conditions.
(2) The flexible joint adopts the heat insulation layer for heat insulation, and the heat transmission speed is reduced by the low-heat-conductivity material; meanwhile, an open structure is adopted for heat dissipation, and the convection heat transfer of seawater is fully utilized for cooling the joint; the adopted novel heat-proof and heat-dissipation technology greatly improves the highest working temperature of the joint;
(3) the invention adopts the pre-pressing spring to pre-press the joint part of the ball, the upper and the lower supporting ball heads can move mutually, and the pre-pressing spring can ensure that the upper and the lower supporting ball heads are always pressed against the two sides, thereby ensuring the reliable compression of the sealing element between the spherical surfaces and ensuring the reliable sealing under different load states.
Drawings
FIG. 1 is a schematic view of the overall construction of a flexible joint of the present invention;
FIG. 2 is a cross-sectional view of a flexible joint of the present invention;
FIG. 3 is a schematic view of the upper joint assembly;
FIG. 4 is a schematic view of the upper/lower support ball head assembly;
FIG. 5 is a schematic view of the upper/lower bellows installation;
fig. 6 is a schematic structural view of the elastic element.
Wherein: 1-upper connecting pipe, 2-upper connecting flange, 3-upper elastic element, 4-upper heat insulating layer, 5-upper metal lining, 6-middle plate, 7-connecting bolt, 8-lower connecting flange, 9-lower metal lining, 10-lower heat insulating layer, 11-lower elastic element, 12-lower connecting pipe, 13-sealing element, 14-upper supporting ball head, 15-spring, 16-upper corrugated pipe, 17-lower corrugated pipe, 18-lower supporting ball head, 19-sealing structure, 20-inner cavity of corrugated pipe, 21-reinforcing element, 22-rubber layer and 23-coating layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1:
the embodiment provides a marine riser flexible joint with a large swing angle, high temperature resistance and high reliability.
As shown in fig. 1 and 2, the marine riser joint comprises a shell and two joint assemblies which are coaxially and symmetrically arranged, wherein the two joint assemblies are an upper joint assembly and a lower joint assembly respectively, the upper joint assembly and the lower joint assembly are coaxially butted through a middle plate 6, and central through holes of the upper joint assembly and the lower joint assembly are communicated to form a liquid conveying channel.
As shown in fig. 3, the housing includes: an upper connecting flange 2, a lower connecting flange 8 and a middle plate 6; the upper connecting flange 2 and the lower connecting flange 8 are coaxially opposite and are arranged on the upper side and the lower side of the middle plate 6, and the upper connecting flange 2 and the lower connecting flange 8 are fixedly connected with the middle plate 6 into a whole through connecting bolts 7 to form a shell of the flexible joint. A plurality of heat dissipation holes are uniformly arranged on the circumferential surfaces of the upper connecting flange 2 and the lower connecting flange 8 at intervals along the axial direction, so that the flexible structure forms an open type heat dissipation structure.
The top connection assembly includes: an upper connecting pipe 1, an upper elastic element 3, an upper heat insulating layer 4, an upper metal liner 5, an upper support bulb 14 and an upper corrugated pipe 16.
The lower joint component comprises: a lower connecting tube 12, a lower elastic element 11, a lower thermal insulation layer 10, a lower metal liner 9, a lower support bulb 18 and a lower bellows 17.
The connection relationship of the components in the joint assembly is described in detail below by taking the joint assembly as an example.
As shown in fig. 2 and 3, one end of the upper connecting pipe 1 has a shaft shoulder, and the other end has a hemispherical shell structure; the end of the hemispherical shell structure extends into the upper connecting flange 2 (the opening of the hemispherical shell structure of the upper connecting pipe 1 is downward). The upper heat insulation layer 4 and the upper metal lining 5 are fixedly laid on the inner surface of the hemispherical shell structure of the upper connecting pipe 1 from inside to outside in sequence in a bonding, welding and other modes; and the upper heat insulating layer 4 and the upper metal liner 5 are extended a set length toward the cylindrical section of the upper connection pipe 1. The upper connecting pipe 1, the upper heat insulating layer 4 and the upper metal lining 5 are fixedly connected to form an upper movable body. The outer side of the upper movable body is connected with the upper connecting flange 2 through an upper elastic element 3, the inner side of the upper movable body is matched with an upper supporting ball head 14 to form a ball joint, and sealing elements 13 are adopted between the ball surfaces for sealing. Specifically, the method comprises the following steps:
the part of the upper connecting flange 2 opposite to the hemispherical shell structure of the upper connecting pipe 1 is of a spherical structure, an annular upper elastic element 3 is arranged between the spherical outer surface of the upper movable body and the spherical structure of the upper connecting flange 2, the outer side of the upper elastic element 3 is fixedly connected with the inner side of the upper connecting flange 2, and the inner side of the upper elastic element is fixedly connected with the outer side of the upper movable body. The upper supporting ball head 14 is located inside the hemispherical shell structure of the upper movable body, and is in spherical fit with the upper metal lining 5 on the inner surface of the hemispherical shell structure, and a sealing element 13 is arranged on the fitting surface.
The lower coupling pipe 12, the lower heat insulating layer 10 and the lower metal liner 9 form a lower movable body by the same coupling method as described above. The outer side of the lower movable body is connected with the lower connecting flange 8 through a lower elastic element 11, the inner side of the lower movable body is matched with a lower support ball head 18 to form a ball joint, and sealing elements 13 are adopted between the spherical surfaces for sealing.
Wherein the swing centers of the upper movable body and the upper elastic element 3 are kept consistent, and the swing centers of the lower movable body and the lower elastic element 11 are kept consistent.
As shown in fig. 4, the upper support ball 14 and the lower support ball 18 both have a hemispherical ball head and a hollow cylindrical structure connected to the ball head, and the cylindrical structure of the upper support ball 14 coaxially extends into the hollow cylindrical structure of the lower support ball 18, so that a sliding pair is formed between the upper support ball 14 and the lower support ball 18 through cylindrical surface fitting (i.e., the two can move relatively in the axial direction). The sliding pair formed by the upper support ball 14 and the lower support ball 18 has a limit (ensured by the size of the column structure of the upper support ball 14 and the lower support ball 18), so that the total length after butt joint cannot be shorter than a set length. The spring 15 is sleeved on the part of the cylindrical structure of the upper supporting ball head 14, which is positioned outside the lower supporting ball head 18, namely one end of the spring 15 is connected with the end surface of the ball head of the upper supporting ball head 14 in an abutting mode, and the other end of the spring is connected with the end surface of the cylindrical structure of the lower supporting ball head 18 in an abutting mode; the spring 15 is in a pre-pressing state, and provides an opening force for the upper support ball 14 and the lower support ball 18 on both sides of the spring 15, so that the sealing element 13 between the upper/lower support balls and the upper/lower movable body is in a pressing state.
The middle plate 6 is sleeved outside the cylindrical structure of the lower support ball head 18 through a central hole and forms a moving pair with the lower support ball head 18 through cylindrical surface matching. A moving pair is formed between the lower support ball head 18 and the middle plate 6 to prevent the two from overturning relatively. Since the middle plate 6 can bear a part of the rotation moment, in order to increase the contact area between the middle plate 6 and the lower support ball 18, the middle plate 6 is extended outwards from the center by a set length, so that the middle part of the middle plate has a hollow cylindrical structure.
As shown in fig. 5, an upper bellows 16 is coaxially sleeved outside the spring 15 at the cylindrical structure of the upper supporting bulb 14 (i.e., the upper bellows 16 is sleeved between the lower end surface of the hemispherical shell structure of the upper connecting tube 1 and the upper end surface of the middle plate 6), and a lower bellows 17 is coaxially sleeved outside the lower supporting bulb 18 (i.e., the lower bellows 17 is sleeved between the upper end surface of the hemispherical shell structure of the lower connecting tube 12 and the lower end surface of the middle plate 6); wherein the lower end of the upper corrugated pipe 16 is fixedly connected with the middle plate 6, and the upper end is fixedly connected with the upper connecting pipe 1; the upper end of the lower corrugated pipe 17 is fixedly connected with the middle plate 6, and the lower end is fixedly connected with the lower connecting pipe 12. Sealing structures 19 are arranged at the joints of the corrugated pipe and each component, and the sealing structures 19 comprise but are not limited to sealing glue, sealing rings, labyrinth seals and the like. Thereby achieving the sealing of the parts between the hemispherical shell structure of the upper connecting pipe 1 and the hemispherical shell structure of the lower connecting pipe 12. The bellows interior cavity 20 is filled with an incompressible, high boiling point liquid, such as ethylene glycol, which serves to protect the metal components and transfer heat.
When the vertical pipe joint is acted by external moment, the upper connecting pipe 1 and the lower connecting pipe 12 swing relatively, because the upper joint component and the lower joint component are in a series structure, the upper elastic element 3 and the lower elastic element 11 divide the swing angle equally and provide elastic moment to enable the upper connecting pipe 1 and the lower connecting pipe 12 to return. Relative swinging can also occur between the upper/lower support ball head and the upper/lower movable body, and as the swing centers of the upper elastic element 3 and the upper support ball head 14 and the swing centers of the lower elastic element 11 and the lower support ball head 18 are respectively superposed, the support ball head can not generate additional influence (except friction force) on the swinging. In addition, under the action of the spring force of the spring 15, the spherical sealing element 13 between the upper/lower support ball head and the upper/lower movable body is always kept in a pressing state, and the sealing structure is guaranteed to work normally.
When the vertical pipe joint is under the action of axial force, if the axial force is tensile force, the vertical pipe joint is supported by the compression of the upper/lower elastic element, and meanwhile, the spring 15 ensures that the upper/lower support ball head is tightly pressed with the spherical surface of the upper/lower movable body; if the axial force is pressure, the upper/lower elastic element is prevented from being in a tension state through the limit of the upper/lower support ball head moving pair, and the service life is prolonged.
Example 2:
the structural form of the elastic member (the generic name of the upper elastic member 3 and the lower elastic member 11) is further defined on the basis of the above embodiment 1.
The upper elastic element 3 and the lower elastic element 11 are identical in structure, and the upper elastic element 3 is taken as an example. As shown in fig. 6, the upper elastic element 3 is designed in a manner of laminated rubber, and is sequentially laminated with the rubber layer 22 in the radial direction through the reinforcement 21, and the innermost side and the outermost side are both the rubber layer 22, and the upper elastic element 3 is respectively fixedly connected with the upper connecting pipe 1 and the upper connecting flange 2 through the rubber layers 22 on the two sides in the radial direction. Rubber cladding layers 23 are added to both end faces of the upper elastic element 3. The reinforcing part 21 and the rubber layer 22 are arranged at intervals, and the reinforcing part 21 is used for providing axial strength, so that the elastic element can bear higher axial load and is not easy to be unstable; the rubber layer 22 is used to provide an elastic moment, enabling the elastic element to resist an external moment by rotation and to be smoothly reset. The rubber coating layers 23 on the two sides play a role in protecting the laminated rubber part, and aging and seawater corrosion of the functional area are avoided.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (12)
1. A high temperature resistant marine riser flexible joint, its characterized in that: the connector comprises a shell and two connector assemblies which are arranged in the shell in an up-and-down symmetrical manner;
the joint assembly includes: the device comprises a movable body, an elastic element, a supporting ball head and a corrugated pipe; the outer side of the movable body is connected with the shell through the elastic element, and the inner side of the movable body is matched with the supporting ball head to form a ball joint; the swing centers of the movable body and the elastic element are consistent;
a sliding pair is formed between the supporting ball heads of the two joint components and can relatively move for a set distance along the axial direction;
the outer part of the supporting ball head positioned between the two movable bodies is sealed by the corrugated pipe;
a sliding pair is formed between the joint component and the shell, and the joint component and the shell are prevented from being turned over relatively.
2. The high temperature resistant marine riser flexible joint of claim 1, wherein: and a spring (15) is arranged between the two joint component support bulbs in the moving pair direction, and the spring (15) is in a pre-pressing state, so that the support bulbs and the movable body are tightly pushed.
3. The high temperature resistant marine riser flexible joint of claim 1, wherein: the shell is distributed with heat dissipation holes to form an open type heat dissipation structure.
4. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: the elastic element is formed by sequentially laminating a reinforcing part (21) and a rubber layer (22) along the radial direction, and the innermost side and the outermost side of the elastic element are both the rubber layer (22); and corrosion-resistant coating layers (23) are arranged on two end faces of the elastic element.
5. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: the housing includes: an upper connecting flange (2), a lower connecting flange (8) and a middle plate (6); the upper connecting flange (2) and the lower connecting flange (8) are coaxially opposite and are fixedly connected with the middle plate (6) respectively.
6. The high temperature resistant marine riser flexible joint of claim 5, wherein: more than two heat dissipation holes are formed in the circumferential surfaces of the upper connecting flange (2) and the lower connecting flange (8).
7. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: the movable body comprises a connecting pipe, a heat insulating layer and a metal lining;
one end of the connecting pipe is of a hemispherical shell structure and is used for being matched with the supporting ball head to form a ball joint; the heat insulation layer and the metal lining are sequentially arranged on the inner surface of the hemispherical shell structure of the connecting pipe from inside to outside.
8. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: the interior of the bellows is filled with an incompressible, high-boiling liquid.
9. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball head (14), and the supporting ball head in the lower joint assembly is a lower supporting ball head (18);
the upper support ball head (14) and the lower support ball head (18) are both provided with a hemispherical ball head and a hollow cylindrical structure connected with the ball head; the cylindrical structure of the upper supporting ball head (14) coaxially extends into the hollow cylindrical structure of the lower supporting ball head (18), so that a sliding pair is formed between the upper supporting ball head (14) and the lower supporting ball head (18) through cylindrical surface matching.
10. The high temperature resistant marine riser flexible joint of claim 2, wherein: in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball body (14), and the supporting ball head in the lower joint assembly is a lower supporting ball head (18);
the upper support ball head (14) and the lower support ball head (18) are both provided with a hemispherical ball head and a hollow cylindrical structure connected with the ball head; the cylindrical structure of the upper supporting ball head (14) coaxially extends into the hollow cylindrical structure of the lower supporting ball head (18), so that a moving pair is formed between the upper supporting ball head (14) and the lower supporting ball head (18) through cylindrical surface matching;
the spring (15) suit is in go up support bulb (14) column structure and be located the outer part of lower support bulb (18), the one end of spring (15) with go up support bulb (14) terminal surface and contradict continuously, the other end with the conflict of lower support bulb (18) column structure terminal surface links to each other.
11. The high temperature resistant marine riser flexible joint of claim 5, wherein: in the two joint assemblies, the supporting ball head in the upper joint assembly is an upper supporting ball head (14), and the supporting ball head in the lower joint assembly is a lower supporting ball head (18);
the upper support ball head (14) and the lower support ball head (18) are both provided with a hemispherical ball head and a hollow cylindrical structure connected with the ball head; the cylindrical structure of the upper supporting ball head (14) coaxially extends into the hollow cylindrical structure of the lower supporting ball head (18), so that a moving pair is formed between the upper supporting ball head (14) and the lower supporting ball head (18) through cylindrical surface matching;
the middle plate (6) is sleeved outside the cylindrical structure of the lower support ball head (18) through a center hole and forms a moving pair with the lower support ball head (18) through cylindrical surface matching.
12. A high temperature resistant marine riser flexible joint as claimed in claim 1 or 2 or 3 wherein: and a sealing element is arranged between the movable body and the support ball head in a matching way.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111361645.4A CN113914830B (en) | 2021-11-17 | 2021-11-17 | High-temperature-resistant marine riser flexible joint |
| PCT/CN2021/133854 WO2023087374A1 (en) | 2021-11-17 | 2021-11-29 | High-temperature-resistant flexible joint for marine riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111361645.4A CN113914830B (en) | 2021-11-17 | 2021-11-17 | High-temperature-resistant marine riser flexible joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113914830A true CN113914830A (en) | 2022-01-11 |
| CN113914830B CN113914830B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111361645.4A Active CN113914830B (en) | 2021-11-17 | 2021-11-17 | High-temperature-resistant marine riser flexible joint |
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| Country | Link |
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| CN (1) | CN113914830B (en) |
| WO (1) | WO2023087374A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2603860A (en) * | 2021-02-11 | 2022-08-17 | Tco As | Metal bellows for downhole use |
| CN114941522A (en) * | 2022-07-01 | 2022-08-26 | 应急管理部国家自然灾害防治研究院 | Underground high-pressure sealing hinge type connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536981B (en) * | 2023-10-24 | 2024-05-10 | 索密克汽车配件有限公司 | Real-time evaluation system for ball head connecting rod and service life |
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| GB1582616A (en) * | 1977-04-29 | 1981-01-14 | Lord Corp | Liquid filled flexible conduit joint |
| US4273470A (en) * | 1978-01-20 | 1981-06-16 | Shell Oil Company | Offshore production riser with flexible connector |
| US20030019625A1 (en) * | 2001-07-25 | 2003-01-30 | Olivier Moog | Simple flexible joint for high pressure and high temperature |
| US20050167978A1 (en) * | 2004-01-29 | 2005-08-04 | Moses Charles J. | High temperature flexible pipe joint |
| US20050284638A1 (en) * | 2004-06-28 | 2005-12-29 | Riggs David C | Method for inspection and repair of a flexible joint |
| US20090212557A1 (en) * | 2008-02-25 | 2009-08-27 | Oil States Industries, Inc. | Two-element tandem flexible joint |
| CN102084168A (en) * | 2009-07-15 | 2011-06-01 | 石油国家工业公司 | Double-ended flexible pipe joint having stacked co-axial primary and secondary annular elastomeric flex elements |
| US20160251910A1 (en) * | 2013-10-29 | 2016-09-01 | Lord Corporation | Riser bearing with high shape factor |
| CN110714725A (en) * | 2015-05-29 | 2020-01-21 | 石油国家工业公司 | Flexible pipe joint having an annular flexible boot thermally or chemically insulating an annular elastomeric flexible member |
| CN107806329A (en) * | 2017-12-08 | 2018-03-16 | 长江大学 | A kind of ultrahigh-pressure vibration damping pressure break Universal pipe tandem head |
| CN111207257A (en) * | 2019-07-30 | 2020-05-29 | 北京石油化工学院 | High-temperature high-pressure pipeline flexible joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2603860A (en) * | 2021-02-11 | 2022-08-17 | Tco As | Metal bellows for downhole use |
| CN114941522A (en) * | 2022-07-01 | 2022-08-26 | 应急管理部国家自然灾害防治研究院 | Underground high-pressure sealing hinge type connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113914830B (en) | 2024-04-09 |
| WO2023087374A1 (en) | 2023-05-25 |
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